Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1 | #include <unistd.h> |
| 2 | #include <fcntl.h> |
| 3 | #include <string.h> |
| 4 | #include <signal.h> |
| 5 | #include <time.h> |
Jens Axboe | 0c6e751 | 2007-02-22 11:19:39 +0100 | [diff] [blame] | 6 | #include <assert.h> |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 7 | |
| 8 | #include "fio.h" |
Jens Axboe | 5973caf | 2008-05-21 19:52:35 +0200 | [diff] [blame] | 9 | #include "hash.h" |
Jens Axboe | 4f5af7b | 2009-06-03 08:45:40 +0200 | [diff] [blame] | 10 | #include "verify.h" |
Jens Axboe | 0d29de8 | 2010-09-01 13:54:15 +0200 | [diff] [blame] | 11 | #include "trim.h" |
Jens Axboe | 1fbbf72 | 2010-03-25 23:03:18 +0100 | [diff] [blame] | 12 | #include "lib/rand.h" |
Jens Axboe | 7ebd796 | 2012-11-28 21:24:46 +0100 | [diff] [blame] | 13 | #include "lib/axmap.h" |
Jens Axboe | 002fe73 | 2014-02-11 08:31:13 -0700 | [diff] [blame] | 14 | #include "err.h" |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 15 | |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 16 | struct io_completion_data { |
| 17 | int nr; /* input */ |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 18 | |
| 19 | int error; /* output */ |
Jens Axboe | 100f49f | 2013-01-23 10:15:57 -0700 | [diff] [blame] | 20 | uint64_t bytes_done[DDIR_RWDIR_CNT]; /* output */ |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 21 | struct timeval time; /* output */ |
| 22 | }; |
| 23 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 24 | /* |
Jens Axboe | 7ebd796 | 2012-11-28 21:24:46 +0100 | [diff] [blame] | 25 | * The ->io_axmap contains a map of blocks we have or have not done io |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 26 | * to yet. Used to make sure we cover the entire range in a fair fashion. |
| 27 | */ |
Jens Axboe | 1ae83d4 | 2013-01-12 01:44:15 -0700 | [diff] [blame] | 28 | static int random_map_free(struct fio_file *f, const uint64_t block) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 29 | { |
Jens Axboe | 7ebd796 | 2012-11-28 21:24:46 +0100 | [diff] [blame] | 30 | return !axmap_isset(f->io_axmap, block); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 31 | } |
| 32 | |
| 33 | /* |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 34 | * Mark a given offset as used in the map. |
| 35 | */ |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 36 | static void mark_random_map(struct thread_data *td, struct io_u *io_u) |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 37 | { |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 38 | unsigned int min_bs = td->o.rw_min_bs; |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 39 | struct fio_file *f = io_u->file; |
Jens Axboe | 51ede0b | 2012-11-22 13:50:29 +0100 | [diff] [blame] | 40 | unsigned int nr_blocks; |
Jens Axboe | 1ae83d4 | 2013-01-12 01:44:15 -0700 | [diff] [blame] | 41 | uint64_t block; |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 42 | |
Jens Axboe | 1ae83d4 | 2013-01-12 01:44:15 -0700 | [diff] [blame] | 43 | block = (io_u->offset - f->file_offset) / (uint64_t) min_bs; |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 44 | nr_blocks = (io_u->buflen + min_bs - 1) / min_bs; |
| 45 | |
Jens Axboe | 2ab9e98 | 2012-11-22 15:14:17 +0100 | [diff] [blame] | 46 | if (!(io_u->flags & IO_U_F_BUSY_OK)) |
Jens Axboe | 7ebd796 | 2012-11-28 21:24:46 +0100 | [diff] [blame] | 47 | nr_blocks = axmap_set_nr(f->io_axmap, block, nr_blocks); |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 48 | |
Jens Axboe | 51ede0b | 2012-11-22 13:50:29 +0100 | [diff] [blame] | 49 | if ((nr_blocks * min_bs) < io_u->buflen) |
| 50 | io_u->buflen = nr_blocks * min_bs; |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 51 | } |
| 52 | |
Jens Axboe | 7477673 | 2013-01-11 14:03:25 +0100 | [diff] [blame] | 53 | static uint64_t last_block(struct thread_data *td, struct fio_file *f, |
| 54 | enum fio_ddir ddir) |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 55 | { |
Jens Axboe | 7477673 | 2013-01-11 14:03:25 +0100 | [diff] [blame] | 56 | uint64_t max_blocks; |
| 57 | uint64_t max_size; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 58 | |
Jens Axboe | ff58fce | 2010-08-25 12:02:08 +0200 | [diff] [blame] | 59 | assert(ddir_rw(ddir)); |
| 60 | |
Jens Axboe | d9dd70f | 2008-05-23 12:37:23 +0200 | [diff] [blame] | 61 | /* |
| 62 | * Hmm, should we make sure that ->io_size <= ->real_file_size? |
| 63 | */ |
| 64 | max_size = f->io_size; |
| 65 | if (max_size > f->real_file_size) |
| 66 | max_size = f->real_file_size; |
| 67 | |
Steven Noonan | ed33585 | 2012-01-31 13:58:00 +0100 | [diff] [blame] | 68 | if (td->o.zone_range) |
| 69 | max_size = td->o.zone_range; |
| 70 | |
Jens Axboe | 1ae83d4 | 2013-01-12 01:44:15 -0700 | [diff] [blame] | 71 | max_blocks = max_size / (uint64_t) td->o.ba[ddir]; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 72 | if (!max_blocks) |
| 73 | return 0; |
| 74 | |
Jens Axboe | 67778e8 | 2008-05-15 09:20:08 +0200 | [diff] [blame] | 75 | return max_blocks; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 76 | } |
| 77 | |
Jens Axboe | 1ae83d4 | 2013-01-12 01:44:15 -0700 | [diff] [blame] | 78 | struct rand_off { |
| 79 | struct flist_head list; |
| 80 | uint64_t off; |
| 81 | }; |
| 82 | |
Jens Axboe | e25839d | 2012-11-06 10:49:42 +0100 | [diff] [blame] | 83 | static int __get_next_rand_offset(struct thread_data *td, struct fio_file *f, |
Jens Axboe | 1ae83d4 | 2013-01-12 01:44:15 -0700 | [diff] [blame] | 84 | enum fio_ddir ddir, uint64_t *b) |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 85 | { |
Jens Axboe | 1ae83d4 | 2013-01-12 01:44:15 -0700 | [diff] [blame] | 86 | uint64_t r, lastb; |
Jens Axboe | 7477673 | 2013-01-11 14:03:25 +0100 | [diff] [blame] | 87 | |
| 88 | lastb = last_block(td, f, ddir); |
| 89 | if (!lastb) |
| 90 | return 1; |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 91 | |
Jens Axboe | 8055e41 | 2012-11-26 08:43:47 +0100 | [diff] [blame] | 92 | if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE) { |
Jens Axboe | 559073f | 2014-11-05 18:34:02 -0700 | [diff] [blame^] | 93 | r = __rand(&td->__random_state); |
Jens Axboe | 8055e41 | 2012-11-26 08:43:47 +0100 | [diff] [blame] | 94 | |
Jens Axboe | 4b91ee8 | 2013-02-25 10:18:33 +0100 | [diff] [blame] | 95 | dprint(FD_RANDOM, "off rand %llu\n", (unsigned long long) r); |
Jens Axboe | 8055e41 | 2012-11-26 08:43:47 +0100 | [diff] [blame] | 96 | |
Jens Axboe | 559073f | 2014-11-05 18:34:02 -0700 | [diff] [blame^] | 97 | *b = lastb * (r / ((uint64_t) FRAND_MAX + 1.0)); |
Jens Axboe | 51ede0b | 2012-11-22 13:50:29 +0100 | [diff] [blame] | 98 | } else { |
Jens Axboe | 8055e41 | 2012-11-26 08:43:47 +0100 | [diff] [blame] | 99 | uint64_t off = 0; |
| 100 | |
Jens Axboe | 7477673 | 2013-01-11 14:03:25 +0100 | [diff] [blame] | 101 | if (lfsr_next(&f->lfsr, &off, lastb)) |
Jens Axboe | 8055e41 | 2012-11-26 08:43:47 +0100 | [diff] [blame] | 102 | return 1; |
| 103 | |
| 104 | *b = off; |
Jens Axboe | 51ede0b | 2012-11-22 13:50:29 +0100 | [diff] [blame] | 105 | } |
Jens Axboe | 2615cc4 | 2011-03-28 09:35:09 +0200 | [diff] [blame] | 106 | |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 107 | /* |
Jens Axboe | 51ede0b | 2012-11-22 13:50:29 +0100 | [diff] [blame] | 108 | * if we are not maintaining a random map, we are done. |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 109 | */ |
Jens Axboe | 51ede0b | 2012-11-22 13:50:29 +0100 | [diff] [blame] | 110 | if (!file_randommap(td, f)) |
| 111 | goto ret; |
Jens Axboe | 43c63a7 | 2007-05-21 13:23:30 +0200 | [diff] [blame] | 112 | |
| 113 | /* |
Jens Axboe | 51ede0b | 2012-11-22 13:50:29 +0100 | [diff] [blame] | 114 | * calculate map offset and check if it's free |
Jens Axboe | 43c63a7 | 2007-05-21 13:23:30 +0200 | [diff] [blame] | 115 | */ |
Jens Axboe | 51ede0b | 2012-11-22 13:50:29 +0100 | [diff] [blame] | 116 | if (random_map_free(f, *b)) |
| 117 | goto ret; |
| 118 | |
Jens Axboe | 4b91ee8 | 2013-02-25 10:18:33 +0100 | [diff] [blame] | 119 | dprint(FD_RANDOM, "get_next_rand_offset: offset %llu busy\n", |
| 120 | (unsigned long long) *b); |
Jens Axboe | 51ede0b | 2012-11-22 13:50:29 +0100 | [diff] [blame] | 121 | |
Jens Axboe | 7ebd796 | 2012-11-28 21:24:46 +0100 | [diff] [blame] | 122 | *b = axmap_next_free(f->io_axmap, *b); |
Jens Axboe | 51ede0b | 2012-11-22 13:50:29 +0100 | [diff] [blame] | 123 | if (*b == (uint64_t) -1ULL) |
| 124 | return 1; |
Jens Axboe | 0ce8b11 | 2011-01-27 22:25:29 +0100 | [diff] [blame] | 125 | ret: |
| 126 | return 0; |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 127 | } |
| 128 | |
Jens Axboe | 925fee3 | 2012-11-06 13:50:32 +0100 | [diff] [blame] | 129 | static int __get_next_rand_offset_zipf(struct thread_data *td, |
| 130 | struct fio_file *f, enum fio_ddir ddir, |
Jens Axboe | 1ae83d4 | 2013-01-12 01:44:15 -0700 | [diff] [blame] | 131 | uint64_t *b) |
Jens Axboe | e25839d | 2012-11-06 10:49:42 +0100 | [diff] [blame] | 132 | { |
Jens Axboe | 9c6f631 | 2012-11-07 09:15:45 +0100 | [diff] [blame] | 133 | *b = zipf_next(&f->zipf); |
Jens Axboe | e25839d | 2012-11-06 10:49:42 +0100 | [diff] [blame] | 134 | return 0; |
| 135 | } |
| 136 | |
Jens Axboe | 925fee3 | 2012-11-06 13:50:32 +0100 | [diff] [blame] | 137 | static int __get_next_rand_offset_pareto(struct thread_data *td, |
| 138 | struct fio_file *f, enum fio_ddir ddir, |
Jens Axboe | 1ae83d4 | 2013-01-12 01:44:15 -0700 | [diff] [blame] | 139 | uint64_t *b) |
Jens Axboe | 925fee3 | 2012-11-06 13:50:32 +0100 | [diff] [blame] | 140 | { |
Jens Axboe | 9c6f631 | 2012-11-07 09:15:45 +0100 | [diff] [blame] | 141 | *b = pareto_next(&f->zipf); |
Jens Axboe | 925fee3 | 2012-11-06 13:50:32 +0100 | [diff] [blame] | 142 | return 0; |
| 143 | } |
| 144 | |
Jens Axboe | 1ae83d4 | 2013-01-12 01:44:15 -0700 | [diff] [blame] | 145 | static int flist_cmp(void *data, struct flist_head *a, struct flist_head *b) |
| 146 | { |
| 147 | struct rand_off *r1 = flist_entry(a, struct rand_off, list); |
| 148 | struct rand_off *r2 = flist_entry(b, struct rand_off, list); |
| 149 | |
| 150 | return r1->off - r2->off; |
| 151 | } |
| 152 | |
| 153 | static int get_off_from_method(struct thread_data *td, struct fio_file *f, |
| 154 | enum fio_ddir ddir, uint64_t *b) |
Jens Axboe | e25839d | 2012-11-06 10:49:42 +0100 | [diff] [blame] | 155 | { |
| 156 | if (td->o.random_distribution == FIO_RAND_DIST_RANDOM) |
| 157 | return __get_next_rand_offset(td, f, ddir, b); |
| 158 | else if (td->o.random_distribution == FIO_RAND_DIST_ZIPF) |
| 159 | return __get_next_rand_offset_zipf(td, f, ddir, b); |
Jens Axboe | 925fee3 | 2012-11-06 13:50:32 +0100 | [diff] [blame] | 160 | else if (td->o.random_distribution == FIO_RAND_DIST_PARETO) |
| 161 | return __get_next_rand_offset_pareto(td, f, ddir, b); |
Jens Axboe | e25839d | 2012-11-06 10:49:42 +0100 | [diff] [blame] | 162 | |
| 163 | log_err("fio: unknown random distribution: %d\n", td->o.random_distribution); |
| 164 | return 1; |
| 165 | } |
| 166 | |
Jens Axboe | bcd5abf | 2013-01-23 09:27:25 -0700 | [diff] [blame] | 167 | /* |
| 168 | * Sort the reads for a verify phase in batches of verifysort_nr, if |
| 169 | * specified. |
| 170 | */ |
| 171 | static inline int should_sort_io(struct thread_data *td) |
| 172 | { |
| 173 | if (!td->o.verifysort_nr || !td->o.do_verify) |
| 174 | return 0; |
| 175 | if (!td_random(td)) |
| 176 | return 0; |
| 177 | if (td->runstate != TD_VERIFYING) |
| 178 | return 0; |
| 179 | if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE) |
| 180 | return 0; |
| 181 | |
| 182 | return 1; |
| 183 | } |
| 184 | |
Jens Axboe | d947227 | 2013-07-25 10:20:45 -0600 | [diff] [blame] | 185 | static int should_do_random(struct thread_data *td, enum fio_ddir ddir) |
Jens Axboe | 211c9b8 | 2013-04-26 08:56:17 -0600 | [diff] [blame] | 186 | { |
| 187 | unsigned int v; |
| 188 | unsigned long r; |
| 189 | |
Jens Axboe | d947227 | 2013-07-25 10:20:45 -0600 | [diff] [blame] | 190 | if (td->o.perc_rand[ddir] == 100) |
Jens Axboe | 211c9b8 | 2013-04-26 08:56:17 -0600 | [diff] [blame] | 191 | return 1; |
| 192 | |
Jens Axboe | 559073f | 2014-11-05 18:34:02 -0700 | [diff] [blame^] | 193 | r = __rand(&td->__seq_rand_state[ddir]); |
| 194 | v = 1 + (int) (100.0 * (r / (FRAND_MAX + 1.0))); |
Jens Axboe | 211c9b8 | 2013-04-26 08:56:17 -0600 | [diff] [blame] | 195 | |
Jens Axboe | d947227 | 2013-07-25 10:20:45 -0600 | [diff] [blame] | 196 | return v <= td->o.perc_rand[ddir]; |
Jens Axboe | 211c9b8 | 2013-04-26 08:56:17 -0600 | [diff] [blame] | 197 | } |
| 198 | |
Jens Axboe | 1ae83d4 | 2013-01-12 01:44:15 -0700 | [diff] [blame] | 199 | static int get_next_rand_offset(struct thread_data *td, struct fio_file *f, |
| 200 | enum fio_ddir ddir, uint64_t *b) |
| 201 | { |
| 202 | struct rand_off *r; |
| 203 | int i, ret = 1; |
| 204 | |
Jens Axboe | bcd5abf | 2013-01-23 09:27:25 -0700 | [diff] [blame] | 205 | if (!should_sort_io(td)) |
Jens Axboe | 1ae83d4 | 2013-01-12 01:44:15 -0700 | [diff] [blame] | 206 | return get_off_from_method(td, f, ddir, b); |
| 207 | |
| 208 | if (!flist_empty(&td->next_rand_list)) { |
| 209 | struct rand_off *r; |
| 210 | fetch: |
Jens Axboe | 12dbd06 | 2014-07-03 21:19:57 -0600 | [diff] [blame] | 211 | r = flist_first_entry(&td->next_rand_list, struct rand_off, list); |
Jens Axboe | 1ae83d4 | 2013-01-12 01:44:15 -0700 | [diff] [blame] | 212 | flist_del(&r->list); |
| 213 | *b = r->off; |
| 214 | free(r); |
| 215 | return 0; |
| 216 | } |
| 217 | |
| 218 | for (i = 0; i < td->o.verifysort_nr; i++) { |
| 219 | r = malloc(sizeof(*r)); |
| 220 | |
| 221 | ret = get_off_from_method(td, f, ddir, &r->off); |
| 222 | if (ret) { |
| 223 | free(r); |
| 224 | break; |
| 225 | } |
| 226 | |
| 227 | flist_add(&r->list, &td->next_rand_list); |
| 228 | } |
| 229 | |
| 230 | if (ret && !i) |
| 231 | return ret; |
| 232 | |
| 233 | assert(!flist_empty(&td->next_rand_list)); |
| 234 | flist_sort(NULL, &td->next_rand_list, flist_cmp); |
| 235 | goto fetch; |
| 236 | } |
| 237 | |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 238 | static int get_next_rand_block(struct thread_data *td, struct fio_file *f, |
Jens Axboe | 1ae83d4 | 2013-01-12 01:44:15 -0700 | [diff] [blame] | 239 | enum fio_ddir ddir, uint64_t *b) |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 240 | { |
Daniel Ehrenberg | c04e466 | 2012-03-16 18:54:15 +0100 | [diff] [blame] | 241 | if (!get_next_rand_offset(td, f, ddir, b)) |
| 242 | return 0; |
| 243 | |
| 244 | if (td->o.time_based) { |
Jens Axboe | 33c4881 | 2013-01-21 09:46:06 -0700 | [diff] [blame] | 245 | fio_file_reset(td, f); |
Daniel Ehrenberg | c04e466 | 2012-03-16 18:54:15 +0100 | [diff] [blame] | 246 | if (!get_next_rand_offset(td, f, ddir, b)) |
| 247 | return 0; |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 248 | } |
| 249 | |
Daniel Ehrenberg | c04e466 | 2012-03-16 18:54:15 +0100 | [diff] [blame] | 250 | dprint(FD_IO, "%s: rand offset failed, last=%llu, size=%llu\n", |
Jens Axboe | 4b91ee8 | 2013-02-25 10:18:33 +0100 | [diff] [blame] | 251 | f->file_name, (unsigned long long) f->last_pos, |
| 252 | (unsigned long long) f->real_file_size); |
Daniel Ehrenberg | c04e466 | 2012-03-16 18:54:15 +0100 | [diff] [blame] | 253 | return 1; |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 254 | } |
| 255 | |
Jens Axboe | 37cf9e3 | 2012-03-17 12:54:30 +0100 | [diff] [blame] | 256 | static int get_next_seq_offset(struct thread_data *td, struct fio_file *f, |
Jens Axboe | 1ae83d4 | 2013-01-12 01:44:15 -0700 | [diff] [blame] | 257 | enum fio_ddir ddir, uint64_t *offset) |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 258 | { |
Jens Axboe | 8a42394 | 2014-09-28 16:18:43 -0600 | [diff] [blame] | 259 | struct thread_options *o = &td->o; |
| 260 | |
Jens Axboe | ff58fce | 2010-08-25 12:02:08 +0200 | [diff] [blame] | 261 | assert(ddir_rw(ddir)); |
| 262 | |
Jens Axboe | 8a42394 | 2014-09-28 16:18:43 -0600 | [diff] [blame] | 263 | if (f->last_pos >= f->io_size + get_start_offset(td, f) && |
| 264 | o->time_based) |
Daniel Ehrenberg | c04e466 | 2012-03-16 18:54:15 +0100 | [diff] [blame] | 265 | f->last_pos = f->last_pos - f->io_size; |
| 266 | |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 267 | if (f->last_pos < f->real_file_size) { |
Jens Axboe | 1ae83d4 | 2013-01-12 01:44:15 -0700 | [diff] [blame] | 268 | uint64_t pos; |
Jens Axboe | 059b080 | 2011-08-25 09:09:37 +0200 | [diff] [blame] | 269 | |
Jens Axboe | 8a42394 | 2014-09-28 16:18:43 -0600 | [diff] [blame] | 270 | if (f->last_pos == f->file_offset && o->ddir_seq_add < 0) |
Jens Axboe | a66da7a | 2011-08-31 13:14:12 -0600 | [diff] [blame] | 271 | f->last_pos = f->real_file_size; |
| 272 | |
| 273 | pos = f->last_pos - f->file_offset; |
Jens Axboe | 8a42394 | 2014-09-28 16:18:43 -0600 | [diff] [blame] | 274 | if (pos && o->ddir_seq_add) { |
| 275 | pos += o->ddir_seq_add; |
| 276 | |
| 277 | /* |
| 278 | * If we reach beyond the end of the file |
| 279 | * with holed IO, wrap around to the |
| 280 | * beginning again. |
| 281 | */ |
| 282 | if (pos >= f->real_file_size) |
| 283 | pos = f->file_offset; |
| 284 | } |
Jens Axboe | 059b080 | 2011-08-25 09:09:37 +0200 | [diff] [blame] | 285 | |
Jens Axboe | 37cf9e3 | 2012-03-17 12:54:30 +0100 | [diff] [blame] | 286 | *offset = pos; |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 287 | return 0; |
| 288 | } |
| 289 | |
| 290 | return 1; |
| 291 | } |
| 292 | |
| 293 | static int get_next_block(struct thread_data *td, struct io_u *io_u, |
Jens Axboe | 6aca9b3 | 2013-07-25 12:45:26 -0600 | [diff] [blame] | 294 | enum fio_ddir ddir, int rw_seq, |
| 295 | unsigned int *is_random) |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 296 | { |
| 297 | struct fio_file *f = io_u->file; |
Jens Axboe | 1ae83d4 | 2013-01-12 01:44:15 -0700 | [diff] [blame] | 298 | uint64_t b, offset; |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 299 | int ret; |
| 300 | |
Jens Axboe | ff58fce | 2010-08-25 12:02:08 +0200 | [diff] [blame] | 301 | assert(ddir_rw(ddir)); |
| 302 | |
Jens Axboe | 37cf9e3 | 2012-03-17 12:54:30 +0100 | [diff] [blame] | 303 | b = offset = -1ULL; |
| 304 | |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 305 | if (rw_seq) { |
Jens Axboe | 211c9b8 | 2013-04-26 08:56:17 -0600 | [diff] [blame] | 306 | if (td_random(td)) { |
Jens Axboe | 6aca9b3 | 2013-07-25 12:45:26 -0600 | [diff] [blame] | 307 | if (should_do_random(td, ddir)) { |
Jens Axboe | 211c9b8 | 2013-04-26 08:56:17 -0600 | [diff] [blame] | 308 | ret = get_next_rand_block(td, f, ddir, &b); |
Jens Axboe | 6aca9b3 | 2013-07-25 12:45:26 -0600 | [diff] [blame] | 309 | *is_random = 1; |
| 310 | } else { |
| 311 | *is_random = 0; |
Jens Axboe | 211c9b8 | 2013-04-26 08:56:17 -0600 | [diff] [blame] | 312 | io_u->flags |= IO_U_F_BUSY_OK; |
| 313 | ret = get_next_seq_offset(td, f, ddir, &offset); |
| 314 | if (ret) |
| 315 | ret = get_next_rand_block(td, f, ddir, &b); |
| 316 | } |
Jens Axboe | 6aca9b3 | 2013-07-25 12:45:26 -0600 | [diff] [blame] | 317 | } else { |
| 318 | *is_random = 0; |
Jens Axboe | 37cf9e3 | 2012-03-17 12:54:30 +0100 | [diff] [blame] | 319 | ret = get_next_seq_offset(td, f, ddir, &offset); |
Jens Axboe | 6aca9b3 | 2013-07-25 12:45:26 -0600 | [diff] [blame] | 320 | } |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 321 | } else { |
| 322 | io_u->flags |= IO_U_F_BUSY_OK; |
Jens Axboe | 6aca9b3 | 2013-07-25 12:45:26 -0600 | [diff] [blame] | 323 | *is_random = 0; |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 324 | |
| 325 | if (td->o.rw_seq == RW_SEQ_SEQ) { |
Jens Axboe | 37cf9e3 | 2012-03-17 12:54:30 +0100 | [diff] [blame] | 326 | ret = get_next_seq_offset(td, f, ddir, &offset); |
Jens Axboe | 6aca9b3 | 2013-07-25 12:45:26 -0600 | [diff] [blame] | 327 | if (ret) { |
Jens Axboe | 37cf9e3 | 2012-03-17 12:54:30 +0100 | [diff] [blame] | 328 | ret = get_next_rand_block(td, f, ddir, &b); |
Jens Axboe | 6aca9b3 | 2013-07-25 12:45:26 -0600 | [diff] [blame] | 329 | *is_random = 0; |
| 330 | } |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 331 | } else if (td->o.rw_seq == RW_SEQ_IDENT) { |
| 332 | if (f->last_start != -1ULL) |
Jens Axboe | 37cf9e3 | 2012-03-17 12:54:30 +0100 | [diff] [blame] | 333 | offset = f->last_start - f->file_offset; |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 334 | else |
Jens Axboe | 37cf9e3 | 2012-03-17 12:54:30 +0100 | [diff] [blame] | 335 | offset = 0; |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 336 | ret = 0; |
| 337 | } else { |
| 338 | log_err("fio: unknown rw_seq=%d\n", td->o.rw_seq); |
| 339 | ret = 1; |
| 340 | } |
| 341 | } |
Bruce Cran | 6d68b99 | 2013-01-13 17:21:58 +0000 | [diff] [blame] | 342 | |
Jens Axboe | 37cf9e3 | 2012-03-17 12:54:30 +0100 | [diff] [blame] | 343 | if (!ret) { |
| 344 | if (offset != -1ULL) |
| 345 | io_u->offset = offset; |
| 346 | else if (b != -1ULL) |
| 347 | io_u->offset = b * td->o.ba[ddir]; |
| 348 | else { |
Jens Axboe | 4e0a8fa | 2013-04-15 11:40:57 +0200 | [diff] [blame] | 349 | log_err("fio: bug in offset generation: offset=%llu, b=%llu\n", (unsigned long long) offset, (unsigned long long) b); |
Jens Axboe | 37cf9e3 | 2012-03-17 12:54:30 +0100 | [diff] [blame] | 350 | ret = 1; |
| 351 | } |
| 352 | } |
| 353 | |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 354 | return ret; |
| 355 | } |
| 356 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 357 | /* |
| 358 | * For random io, generate a random new block and see if it's used. Repeat |
| 359 | * until we find a free one. For sequential io, just return the end of |
| 360 | * the last io issued. |
| 361 | */ |
Jens Axboe | 6aca9b3 | 2013-07-25 12:45:26 -0600 | [diff] [blame] | 362 | static int __get_next_offset(struct thread_data *td, struct io_u *io_u, |
| 363 | unsigned int *is_random) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 364 | { |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 365 | struct fio_file *f = io_u->file; |
Jens Axboe | 4ba6613 | 2008-02-05 10:05:50 +0100 | [diff] [blame] | 366 | enum fio_ddir ddir = io_u->ddir; |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 367 | int rw_seq_hit = 0; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 368 | |
Jens Axboe | ff58fce | 2010-08-25 12:02:08 +0200 | [diff] [blame] | 369 | assert(ddir_rw(ddir)); |
| 370 | |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 371 | if (td->o.ddir_seq_nr && !--td->ddir_seq_nr) { |
| 372 | rw_seq_hit = 1; |
Jens Axboe | 5736c10 | 2010-07-20 12:03:25 -0600 | [diff] [blame] | 373 | td->ddir_seq_nr = td->o.ddir_seq_nr; |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 374 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 375 | |
Jens Axboe | 6aca9b3 | 2013-07-25 12:45:26 -0600 | [diff] [blame] | 376 | if (get_next_block(td, io_u, ddir, rw_seq_hit, is_random)) |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 377 | return 1; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 378 | |
Jens Axboe | 009bd84 | 2008-05-15 10:19:46 +0200 | [diff] [blame] | 379 | if (io_u->offset >= f->io_size) { |
| 380 | dprint(FD_IO, "get_next_offset: offset %llu >= io_size %llu\n", |
Jens Axboe | 4b91ee8 | 2013-02-25 10:18:33 +0100 | [diff] [blame] | 381 | (unsigned long long) io_u->offset, |
| 382 | (unsigned long long) f->io_size); |
Jens Axboe | 009bd84 | 2008-05-15 10:19:46 +0200 | [diff] [blame] | 383 | return 1; |
| 384 | } |
| 385 | |
| 386 | io_u->offset += f->file_offset; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 387 | if (io_u->offset >= f->real_file_size) { |
| 388 | dprint(FD_IO, "get_next_offset: offset %llu >= size %llu\n", |
Jens Axboe | 4b91ee8 | 2013-02-25 10:18:33 +0100 | [diff] [blame] | 389 | (unsigned long long) io_u->offset, |
| 390 | (unsigned long long) f->real_file_size); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 391 | return 1; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 392 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 393 | |
| 394 | return 0; |
| 395 | } |
| 396 | |
Jens Axboe | 6aca9b3 | 2013-07-25 12:45:26 -0600 | [diff] [blame] | 397 | static int get_next_offset(struct thread_data *td, struct io_u *io_u, |
| 398 | unsigned int *is_random) |
Jens Axboe | 15dc193 | 2010-03-05 10:59:06 +0100 | [diff] [blame] | 399 | { |
Jens Axboe | d72be54 | 2012-11-30 19:37:46 +0100 | [diff] [blame] | 400 | if (td->flags & TD_F_PROFILE_OPS) { |
| 401 | struct prof_io_ops *ops = &td->prof_io_ops; |
Jens Axboe | 7eb3657 | 2010-03-08 13:58:49 +0100 | [diff] [blame] | 402 | |
Jens Axboe | d72be54 | 2012-11-30 19:37:46 +0100 | [diff] [blame] | 403 | if (ops->fill_io_u_off) |
Jens Axboe | 6aca9b3 | 2013-07-25 12:45:26 -0600 | [diff] [blame] | 404 | return ops->fill_io_u_off(td, io_u, is_random); |
Jens Axboe | d72be54 | 2012-11-30 19:37:46 +0100 | [diff] [blame] | 405 | } |
Jens Axboe | 15dc193 | 2010-03-05 10:59:06 +0100 | [diff] [blame] | 406 | |
Jens Axboe | 6aca9b3 | 2013-07-25 12:45:26 -0600 | [diff] [blame] | 407 | return __get_next_offset(td, io_u, is_random); |
Jens Axboe | 15dc193 | 2010-03-05 10:59:06 +0100 | [diff] [blame] | 408 | } |
| 409 | |
Jens Axboe | 7994412 | 2011-05-24 11:26:16 +0200 | [diff] [blame] | 410 | static inline int io_u_fits(struct thread_data *td, struct io_u *io_u, |
| 411 | unsigned int buflen) |
| 412 | { |
| 413 | struct fio_file *f = io_u->file; |
| 414 | |
Jens Axboe | bedc9dc | 2014-03-17 12:51:09 -0600 | [diff] [blame] | 415 | return io_u->offset + buflen <= f->io_size + get_start_offset(td, f); |
Jens Axboe | 7994412 | 2011-05-24 11:26:16 +0200 | [diff] [blame] | 416 | } |
| 417 | |
Jens Axboe | 6aca9b3 | 2013-07-25 12:45:26 -0600 | [diff] [blame] | 418 | static unsigned int __get_next_buflen(struct thread_data *td, struct io_u *io_u, |
| 419 | unsigned int is_random) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 420 | { |
Jens Axboe | 6aca9b3 | 2013-07-25 12:45:26 -0600 | [diff] [blame] | 421 | int ddir = io_u->ddir; |
Jens Axboe | 24d23ca | 2012-11-13 08:31:24 -0700 | [diff] [blame] | 422 | unsigned int buflen = 0; |
Jens Axboe | f3059de | 2008-06-11 15:37:32 +0200 | [diff] [blame] | 423 | unsigned int minbs, maxbs; |
Jens Axboe | 559073f | 2014-11-05 18:34:02 -0700 | [diff] [blame^] | 424 | unsigned long r; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 425 | |
Erwan Velu | 9ee1c64 | 2014-04-02 10:51:16 +0200 | [diff] [blame] | 426 | assert(ddir_rw(ddir)); |
Jens Axboe | 6aca9b3 | 2013-07-25 12:45:26 -0600 | [diff] [blame] | 427 | |
| 428 | if (td->o.bs_is_seq_rand) |
| 429 | ddir = is_random ? DDIR_WRITE: DDIR_READ; |
Jens Axboe | ff58fce | 2010-08-25 12:02:08 +0200 | [diff] [blame] | 430 | |
Jens Axboe | f3059de | 2008-06-11 15:37:32 +0200 | [diff] [blame] | 431 | minbs = td->o.min_bs[ddir]; |
| 432 | maxbs = td->o.max_bs[ddir]; |
| 433 | |
Jens Axboe | 7994412 | 2011-05-24 11:26:16 +0200 | [diff] [blame] | 434 | if (minbs == maxbs) |
| 435 | return minbs; |
| 436 | |
Jens Axboe | 52c5802 | 2012-02-06 21:58:56 +0100 | [diff] [blame] | 437 | /* |
| 438 | * If we can't satisfy the min block size from here, then fail |
| 439 | */ |
| 440 | if (!io_u_fits(td, io_u, minbs)) |
| 441 | return 0; |
| 442 | |
Jens Axboe | 7994412 | 2011-05-24 11:26:16 +0200 | [diff] [blame] | 443 | do { |
Jens Axboe | 559073f | 2014-11-05 18:34:02 -0700 | [diff] [blame^] | 444 | r = __rand(&td->__bsrange_state); |
Jens Axboe | 4c07ad8 | 2011-03-28 09:51:09 +0200 | [diff] [blame] | 445 | |
Jens Axboe | 720e84a | 2009-04-21 08:29:55 +0200 | [diff] [blame] | 446 | if (!td->o.bssplit_nr[ddir]) { |
Jens Axboe | f3059de | 2008-06-11 15:37:32 +0200 | [diff] [blame] | 447 | buflen = 1 + (unsigned int) ((double) maxbs * |
Jens Axboe | 559073f | 2014-11-05 18:34:02 -0700 | [diff] [blame^] | 448 | (r / (FRAND_MAX + 1.0))); |
Jens Axboe | f3059de | 2008-06-11 15:37:32 +0200 | [diff] [blame] | 449 | if (buflen < minbs) |
| 450 | buflen = minbs; |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 451 | } else { |
Jens Axboe | 564ca97 | 2007-12-14 12:21:19 +0100 | [diff] [blame] | 452 | long perc = 0; |
| 453 | unsigned int i; |
| 454 | |
Jens Axboe | 720e84a | 2009-04-21 08:29:55 +0200 | [diff] [blame] | 455 | for (i = 0; i < td->o.bssplit_nr[ddir]; i++) { |
| 456 | struct bssplit *bsp = &td->o.bssplit[ddir][i]; |
Jens Axboe | 564ca97 | 2007-12-14 12:21:19 +0100 | [diff] [blame] | 457 | |
| 458 | buflen = bsp->bs; |
| 459 | perc += bsp->perc; |
Jens Axboe | 559073f | 2014-11-05 18:34:02 -0700 | [diff] [blame^] | 460 | if ((r <= ((FRAND_MAX / 100L) * perc)) && |
Jens Axboe | 7994412 | 2011-05-24 11:26:16 +0200 | [diff] [blame] | 461 | io_u_fits(td, io_u, buflen)) |
Jens Axboe | 564ca97 | 2007-12-14 12:21:19 +0100 | [diff] [blame] | 462 | break; |
| 463 | } |
| 464 | } |
Jens Axboe | 7994412 | 2011-05-24 11:26:16 +0200 | [diff] [blame] | 465 | |
Josef Bacik | a9f70b1 | 2013-07-08 20:32:50 -0400 | [diff] [blame] | 466 | if (td->o.do_verify && td->o.verify != VERIFY_NONE) |
| 467 | buflen = (buflen + td->o.verify_interval - 1) & |
| 468 | ~(td->o.verify_interval - 1); |
| 469 | |
Jens Axboe | f3059de | 2008-06-11 15:37:32 +0200 | [diff] [blame] | 470 | if (!td->o.bs_unaligned && is_power_of_2(minbs)) |
| 471 | buflen = (buflen + minbs - 1) & ~(minbs - 1); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 472 | |
Jens Axboe | 7994412 | 2011-05-24 11:26:16 +0200 | [diff] [blame] | 473 | } while (!io_u_fits(td, io_u, buflen)); |
Jens Axboe | 6a5e688 | 2007-07-26 10:47:51 +0200 | [diff] [blame] | 474 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 475 | return buflen; |
| 476 | } |
| 477 | |
Jens Axboe | 6aca9b3 | 2013-07-25 12:45:26 -0600 | [diff] [blame] | 478 | static unsigned int get_next_buflen(struct thread_data *td, struct io_u *io_u, |
| 479 | unsigned int is_random) |
Jens Axboe | 15dc193 | 2010-03-05 10:59:06 +0100 | [diff] [blame] | 480 | { |
Jens Axboe | d72be54 | 2012-11-30 19:37:46 +0100 | [diff] [blame] | 481 | if (td->flags & TD_F_PROFILE_OPS) { |
| 482 | struct prof_io_ops *ops = &td->prof_io_ops; |
Jens Axboe | 7eb3657 | 2010-03-08 13:58:49 +0100 | [diff] [blame] | 483 | |
Jens Axboe | d72be54 | 2012-11-30 19:37:46 +0100 | [diff] [blame] | 484 | if (ops->fill_io_u_size) |
Jens Axboe | 6aca9b3 | 2013-07-25 12:45:26 -0600 | [diff] [blame] | 485 | return ops->fill_io_u_size(td, io_u, is_random); |
Jens Axboe | d72be54 | 2012-11-30 19:37:46 +0100 | [diff] [blame] | 486 | } |
Jens Axboe | 15dc193 | 2010-03-05 10:59:06 +0100 | [diff] [blame] | 487 | |
Jens Axboe | 6aca9b3 | 2013-07-25 12:45:26 -0600 | [diff] [blame] | 488 | return __get_next_buflen(td, io_u, is_random); |
Jens Axboe | 15dc193 | 2010-03-05 10:59:06 +0100 | [diff] [blame] | 489 | } |
| 490 | |
Jens Axboe | afe24a5 | 2007-03-16 20:27:27 +0100 | [diff] [blame] | 491 | static void set_rwmix_bytes(struct thread_data *td) |
| 492 | { |
Jens Axboe | afe24a5 | 2007-03-16 20:27:27 +0100 | [diff] [blame] | 493 | unsigned int diff; |
| 494 | |
| 495 | /* |
| 496 | * we do time or byte based switch. this is needed because |
| 497 | * buffered writes may issue a lot quicker than they complete, |
| 498 | * whereas reads do not. |
| 499 | */ |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 500 | diff = td->o.rwmix[td->rwmix_ddir ^ 1]; |
Jens Axboe | 04c540d | 2008-05-28 10:35:26 +0200 | [diff] [blame] | 501 | td->rwmix_issues = (td->io_issues[td->rwmix_ddir] * diff) / 100; |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 502 | } |
| 503 | |
| 504 | static inline enum fio_ddir get_rand_ddir(struct thread_data *td) |
| 505 | { |
| 506 | unsigned int v; |
Jens Axboe | 1294c3e | 2011-05-11 08:15:18 +0200 | [diff] [blame] | 507 | unsigned long r; |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 508 | |
Jens Axboe | 559073f | 2014-11-05 18:34:02 -0700 | [diff] [blame^] | 509 | r = __rand(&td->__rwmix_state); |
| 510 | v = 1 + (int) (100.0 * (r / (FRAND_MAX + 1.0))); |
Jens Axboe | 4c07ad8 | 2011-03-28 09:51:09 +0200 | [diff] [blame] | 511 | |
Jens Axboe | 04c540d | 2008-05-28 10:35:26 +0200 | [diff] [blame] | 512 | if (v <= td->o.rwmix[DDIR_READ]) |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 513 | return DDIR_READ; |
| 514 | |
| 515 | return DDIR_WRITE; |
Jens Axboe | afe24a5 | 2007-03-16 20:27:27 +0100 | [diff] [blame] | 516 | } |
| 517 | |
Jens Axboe | 002e718 | 2013-05-17 12:39:53 +0200 | [diff] [blame] | 518 | void io_u_quiesce(struct thread_data *td) |
| 519 | { |
| 520 | /* |
| 521 | * We are going to sleep, ensure that we flush anything pending as |
| 522 | * not to skew our latency numbers. |
| 523 | * |
| 524 | * Changed to only monitor 'in flight' requests here instead of the |
| 525 | * td->cur_depth, b/c td->cur_depth does not accurately represent |
| 526 | * io's that have been actually submitted to an async engine, |
| 527 | * and cur_depth is meaningless for sync engines. |
| 528 | */ |
| 529 | while (td->io_u_in_flight) { |
| 530 | int fio_unused ret; |
| 531 | |
| 532 | ret = io_u_queued_complete(td, 1, NULL); |
| 533 | } |
| 534 | } |
| 535 | |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 536 | static enum fio_ddir rate_ddir(struct thread_data *td, enum fio_ddir ddir) |
| 537 | { |
| 538 | enum fio_ddir odir = ddir ^ 1; |
| 539 | struct timeval t; |
| 540 | long usec; |
| 541 | |
Jens Axboe | ff58fce | 2010-08-25 12:02:08 +0200 | [diff] [blame] | 542 | assert(ddir_rw(ddir)); |
| 543 | |
Jens Axboe | 315fcfe | 2013-02-08 19:05:25 +0100 | [diff] [blame] | 544 | if (td->rate_pending_usleep[ddir] <= 0) |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 545 | return ddir; |
| 546 | |
| 547 | /* |
| 548 | * We have too much pending sleep in this direction. See if we |
| 549 | * should switch. |
| 550 | */ |
Jens Axboe | 315fcfe | 2013-02-08 19:05:25 +0100 | [diff] [blame] | 551 | if (td_rw(td) && td->o.rwmix[odir]) { |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 552 | /* |
| 553 | * Other direction does not have too much pending, switch |
| 554 | */ |
| 555 | if (td->rate_pending_usleep[odir] < 100000) |
| 556 | return odir; |
| 557 | |
| 558 | /* |
| 559 | * Both directions have pending sleep. Sleep the minimum time |
| 560 | * and deduct from both. |
| 561 | */ |
| 562 | if (td->rate_pending_usleep[ddir] <= |
| 563 | td->rate_pending_usleep[odir]) { |
| 564 | usec = td->rate_pending_usleep[ddir]; |
| 565 | } else { |
| 566 | usec = td->rate_pending_usleep[odir]; |
| 567 | ddir = odir; |
| 568 | } |
| 569 | } else |
| 570 | usec = td->rate_pending_usleep[ddir]; |
| 571 | |
Jens Axboe | 002e718 | 2013-05-17 12:39:53 +0200 | [diff] [blame] | 572 | io_u_quiesce(td); |
Jens Axboe | 78c1eda | 2011-08-30 15:34:14 -0600 | [diff] [blame] | 573 | |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 574 | fio_gettime(&t, NULL); |
| 575 | usec_sleep(td, usec); |
| 576 | usec = utime_since_now(&t); |
| 577 | |
| 578 | td->rate_pending_usleep[ddir] -= usec; |
| 579 | |
| 580 | odir = ddir ^ 1; |
| 581 | if (td_rw(td) && __should_check_rate(td, odir)) |
| 582 | td->rate_pending_usleep[odir] -= usec; |
Jens Axboe | 0b9d69e | 2009-09-11 22:29:54 +0200 | [diff] [blame] | 583 | |
Shaohua Li | 6eaf09d | 2012-09-14 08:49:43 +0200 | [diff] [blame] | 584 | if (ddir_trim(ddir)) |
| 585 | return ddir; |
Jens Axboe | e0224c6 | 2013-02-07 19:55:24 +0100 | [diff] [blame] | 586 | |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 587 | return ddir; |
| 588 | } |
| 589 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 590 | /* |
| 591 | * Return the data direction for the next io_u. If the job is a |
| 592 | * mixed read/write workload, check the rwmix cycle and switch if |
| 593 | * necessary. |
| 594 | */ |
Jens Axboe | 1e97cce | 2006-12-05 11:44:16 +0100 | [diff] [blame] | 595 | static enum fio_ddir get_rw_ddir(struct thread_data *td) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 596 | { |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 597 | enum fio_ddir ddir; |
| 598 | |
Jens Axboe | 5f9099e | 2009-06-16 22:40:26 +0200 | [diff] [blame] | 599 | /* |
| 600 | * see if it's time to fsync |
| 601 | */ |
| 602 | if (td->o.fsync_blocks && |
| 603 | !(td->io_issues[DDIR_WRITE] % td->o.fsync_blocks) && |
| 604 | td->io_issues[DDIR_WRITE] && should_fsync(td)) |
| 605 | return DDIR_SYNC; |
| 606 | |
| 607 | /* |
| 608 | * see if it's time to fdatasync |
| 609 | */ |
| 610 | if (td->o.fdatasync_blocks && |
| 611 | !(td->io_issues[DDIR_WRITE] % td->o.fdatasync_blocks) && |
| 612 | td->io_issues[DDIR_WRITE] && should_fsync(td)) |
| 613 | return DDIR_DATASYNC; |
| 614 | |
Jens Axboe | 44f2969 | 2010-03-09 20:09:44 +0100 | [diff] [blame] | 615 | /* |
| 616 | * see if it's time to sync_file_range |
| 617 | */ |
| 618 | if (td->sync_file_range_nr && |
| 619 | !(td->io_issues[DDIR_WRITE] % td->sync_file_range_nr) && |
| 620 | td->io_issues[DDIR_WRITE] && should_fsync(td)) |
| 621 | return DDIR_SYNC_FILE_RANGE; |
| 622 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 623 | if (td_rw(td)) { |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 624 | /* |
| 625 | * Check if it's time to seed a new data direction. |
| 626 | */ |
Jens Axboe | e492866 | 2008-04-07 09:19:46 +0200 | [diff] [blame] | 627 | if (td->io_issues[td->rwmix_ddir] >= td->rwmix_issues) { |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 628 | /* |
| 629 | * Put a top limit on how many bytes we do for |
| 630 | * one data direction, to avoid overflowing the |
| 631 | * ranges too much |
| 632 | */ |
| 633 | ddir = get_rand_ddir(td); |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 634 | |
| 635 | if (ddir != td->rwmix_ddir) |
| 636 | set_rwmix_bytes(td); |
| 637 | |
| 638 | td->rwmix_ddir = ddir; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 639 | } |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 640 | ddir = td->rwmix_ddir; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 641 | } else if (td_read(td)) |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 642 | ddir = DDIR_READ; |
Shaohua Li | 6eaf09d | 2012-09-14 08:49:43 +0200 | [diff] [blame] | 643 | else if (td_write(td)) |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 644 | ddir = DDIR_WRITE; |
Shaohua Li | 6eaf09d | 2012-09-14 08:49:43 +0200 | [diff] [blame] | 645 | else |
| 646 | ddir = DDIR_TRIM; |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 647 | |
| 648 | td->rwmix_ddir = rate_ddir(td, ddir); |
| 649 | return td->rwmix_ddir; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 650 | } |
| 651 | |
Jens Axboe | 1ef2b6b | 2010-10-08 15:07:01 +0200 | [diff] [blame] | 652 | static void set_rw_ddir(struct thread_data *td, struct io_u *io_u) |
| 653 | { |
Jens Axboe | bcd5abf | 2013-01-23 09:27:25 -0700 | [diff] [blame] | 654 | io_u->ddir = io_u->acct_ddir = get_rw_ddir(td); |
Jens Axboe | 1ef2b6b | 2010-10-08 15:07:01 +0200 | [diff] [blame] | 655 | |
| 656 | if (io_u->ddir == DDIR_WRITE && (td->io_ops->flags & FIO_BARRIER) && |
| 657 | td->o.barrier_blocks && |
| 658 | !(td->io_issues[DDIR_WRITE] % td->o.barrier_blocks) && |
| 659 | td->io_issues[DDIR_WRITE]) |
| 660 | io_u->flags |= IO_U_F_BARRIER; |
| 661 | } |
| 662 | |
Jens Axboe | e8462bd | 2009-07-06 12:59:04 +0200 | [diff] [blame] | 663 | void put_file_log(struct thread_data *td, struct fio_file *f) |
Jens Axboe | 60f2c65 | 2008-05-16 12:31:36 +0200 | [diff] [blame] | 664 | { |
Jens Axboe | 71b84ca | 2014-04-14 12:01:45 -0600 | [diff] [blame] | 665 | unsigned int ret = put_file(td, f); |
Jens Axboe | 60f2c65 | 2008-05-16 12:31:36 +0200 | [diff] [blame] | 666 | |
| 667 | if (ret) |
| 668 | td_verror(td, ret, "file close"); |
| 669 | } |
| 670 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 671 | void put_io_u(struct thread_data *td, struct io_u *io_u) |
| 672 | { |
Jens Axboe | e8462bd | 2009-07-06 12:59:04 +0200 | [diff] [blame] | 673 | td_io_u_lock(td); |
| 674 | |
Jens Axboe | e69fdf7 | 2014-07-23 16:11:43 +0200 | [diff] [blame] | 675 | if (io_u->file && !(io_u->flags & IO_U_F_NO_FILE_PUT)) |
Jens Axboe | 60f2c65 | 2008-05-16 12:31:36 +0200 | [diff] [blame] | 676 | put_file_log(td, io_u->file); |
Jens Axboe | e69fdf7 | 2014-07-23 16:11:43 +0200 | [diff] [blame] | 677 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 678 | io_u->file = NULL; |
Steven Lang | d7ee2a7 | 2011-10-26 09:46:50 +0200 | [diff] [blame] | 679 | io_u->flags |= IO_U_F_FREE; |
| 680 | |
Radha Ramachandran | 0c41214 | 2009-11-03 21:45:31 +0100 | [diff] [blame] | 681 | if (io_u->flags & IO_U_F_IN_CUR_DEPTH) |
| 682 | td->cur_depth--; |
Jens Axboe | 2ae0b20 | 2013-05-28 14:16:55 +0200 | [diff] [blame] | 683 | io_u_qpush(&td->io_u_freelist, io_u); |
Jens Axboe | e8462bd | 2009-07-06 12:59:04 +0200 | [diff] [blame] | 684 | td_io_u_unlock(td); |
| 685 | td_io_u_free_notify(td); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 686 | } |
| 687 | |
Radha Ramachandran | f2bba18 | 2009-06-15 08:40:16 +0200 | [diff] [blame] | 688 | void clear_io_u(struct thread_data *td, struct io_u *io_u) |
| 689 | { |
| 690 | io_u->flags &= ~IO_U_F_FLIGHT; |
| 691 | put_io_u(td, io_u); |
| 692 | } |
| 693 | |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 694 | void requeue_io_u(struct thread_data *td, struct io_u **io_u) |
| 695 | { |
| 696 | struct io_u *__io_u = *io_u; |
Jens Axboe | bcd5abf | 2013-01-23 09:27:25 -0700 | [diff] [blame] | 697 | enum fio_ddir ddir = acct_ddir(__io_u); |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 698 | |
Jens Axboe | 465221b | 2008-05-30 22:07:49 +0200 | [diff] [blame] | 699 | dprint(FD_IO, "requeue %p\n", __io_u); |
| 700 | |
Jens Axboe | e8462bd | 2009-07-06 12:59:04 +0200 | [diff] [blame] | 701 | td_io_u_lock(td); |
| 702 | |
Jens Axboe | 4d2e0f4 | 2007-02-24 13:31:57 +0100 | [diff] [blame] | 703 | __io_u->flags |= IO_U_F_FREE; |
Jens Axboe | bcd5abf | 2013-01-23 09:27:25 -0700 | [diff] [blame] | 704 | if ((__io_u->flags & IO_U_F_FLIGHT) && ddir_rw(ddir)) |
| 705 | td->io_issues[ddir]--; |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 706 | |
Jens Axboe | 4d2e0f4 | 2007-02-24 13:31:57 +0100 | [diff] [blame] | 707 | __io_u->flags &= ~IO_U_F_FLIGHT; |
Radha Ramachandran | 0c41214 | 2009-11-03 21:45:31 +0100 | [diff] [blame] | 708 | if (__io_u->flags & IO_U_F_IN_CUR_DEPTH) |
| 709 | td->cur_depth--; |
Jens Axboe | 2ae0b20 | 2013-05-28 14:16:55 +0200 | [diff] [blame] | 710 | |
| 711 | io_u_rpush(&td->io_u_requeues, __io_u); |
Jens Axboe | e8462bd | 2009-07-06 12:59:04 +0200 | [diff] [blame] | 712 | td_io_u_unlock(td); |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 713 | *io_u = NULL; |
| 714 | } |
| 715 | |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 716 | static int fill_io_u(struct thread_data *td, struct io_u *io_u) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 717 | { |
Jens Axboe | 6aca9b3 | 2013-07-25 12:45:26 -0600 | [diff] [blame] | 718 | unsigned int is_random; |
| 719 | |
Jens Axboe | b4c5e1a | 2007-10-25 18:44:45 +0200 | [diff] [blame] | 720 | if (td->io_ops->flags & FIO_NOIO) |
| 721 | goto out; |
| 722 | |
Jens Axboe | 1ef2b6b | 2010-10-08 15:07:01 +0200 | [diff] [blame] | 723 | set_rw_ddir(td, io_u); |
Jens Axboe | a00735e | 2006-11-03 08:58:08 +0100 | [diff] [blame] | 724 | |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 725 | /* |
Jens Axboe | ff58fce | 2010-08-25 12:02:08 +0200 | [diff] [blame] | 726 | * fsync() or fdatasync() or trim etc, we are done |
Jens Axboe | 5f9099e | 2009-06-16 22:40:26 +0200 | [diff] [blame] | 727 | */ |
Jens Axboe | ff58fce | 2010-08-25 12:02:08 +0200 | [diff] [blame] | 728 | if (!ddir_rw(io_u->ddir)) |
Jens Axboe | 5f9099e | 2009-06-16 22:40:26 +0200 | [diff] [blame] | 729 | goto out; |
| 730 | |
| 731 | /* |
Jens Axboe | 48f5abd | 2007-07-20 13:25:04 +0200 | [diff] [blame] | 732 | * See if it's time to switch to a new zone |
| 733 | */ |
Jens Axboe | 13af05a | 2012-02-11 09:04:02 +0100 | [diff] [blame] | 734 | if (td->zone_bytes >= td->o.zone_size && td->o.zone_skip) { |
Jens Axboe | 418bf54 | 2014-09-28 16:20:58 -0600 | [diff] [blame] | 735 | struct fio_file *f = io_u->file; |
| 736 | |
Jens Axboe | 48f5abd | 2007-07-20 13:25:04 +0200 | [diff] [blame] | 737 | td->zone_bytes = 0; |
Jens Axboe | 418bf54 | 2014-09-28 16:20:58 -0600 | [diff] [blame] | 738 | f->file_offset += td->o.zone_range + td->o.zone_skip; |
| 739 | |
| 740 | /* |
| 741 | * Wrap from the beginning, if we exceed the file size |
| 742 | */ |
| 743 | if (f->file_offset >= f->real_file_size) |
| 744 | f->file_offset = f->real_file_size - f->file_offset; |
| 745 | f->last_pos = f->file_offset; |
Jens Axboe | 48f5abd | 2007-07-20 13:25:04 +0200 | [diff] [blame] | 746 | td->io_skip_bytes += td->o.zone_skip; |
| 747 | } |
| 748 | |
| 749 | /* |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 750 | * No log, let the seq/rand engine retrieve the next buflen and |
| 751 | * position. |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 752 | */ |
Jens Axboe | 6aca9b3 | 2013-07-25 12:45:26 -0600 | [diff] [blame] | 753 | if (get_next_offset(td, io_u, &is_random)) { |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 754 | dprint(FD_IO, "io_u %p, failed getting offset\n", io_u); |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 755 | return 1; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 756 | } |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 757 | |
Jens Axboe | 6aca9b3 | 2013-07-25 12:45:26 -0600 | [diff] [blame] | 758 | io_u->buflen = get_next_buflen(td, io_u, is_random); |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 759 | if (!io_u->buflen) { |
| 760 | dprint(FD_IO, "io_u %p, failed getting buflen\n", io_u); |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 761 | return 1; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 762 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 763 | |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 764 | if (io_u->offset + io_u->buflen > io_u->file->real_file_size) { |
| 765 | dprint(FD_IO, "io_u %p, offset too large\n", io_u); |
Jens Axboe | 4b91ee8 | 2013-02-25 10:18:33 +0100 | [diff] [blame] | 766 | dprint(FD_IO, " off=%llu/%lu > %llu\n", |
| 767 | (unsigned long long) io_u->offset, io_u->buflen, |
| 768 | (unsigned long long) io_u->file->real_file_size); |
Jens Axboe | 6a5e688 | 2007-07-26 10:47:51 +0200 | [diff] [blame] | 769 | return 1; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 770 | } |
Jens Axboe | 6a5e688 | 2007-07-26 10:47:51 +0200 | [diff] [blame] | 771 | |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 772 | /* |
| 773 | * mark entry before potentially trimming io_u |
| 774 | */ |
Jens Axboe | 303032a | 2008-03-26 10:11:10 +0100 | [diff] [blame] | 775 | if (td_random(td) && file_randommap(td, io_u->file)) |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 776 | mark_random_map(td, io_u); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 777 | |
Jens Axboe | c38e946 | 2007-03-27 08:48:48 +0200 | [diff] [blame] | 778 | out: |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 779 | dprint_io_u(io_u, "fill_io_u"); |
Jens Axboe | d9d91e3 | 2008-01-31 13:25:42 +0100 | [diff] [blame] | 780 | td->zone_bytes += io_u->buflen; |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 781 | return 0; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 782 | } |
| 783 | |
Jens Axboe | 838bc70 | 2008-05-22 13:08:23 +0200 | [diff] [blame] | 784 | static void __io_u_mark_map(unsigned int *map, unsigned int nr) |
| 785 | { |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 786 | int idx = 0; |
Jens Axboe | 838bc70 | 2008-05-22 13:08:23 +0200 | [diff] [blame] | 787 | |
| 788 | switch (nr) { |
| 789 | default: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 790 | idx = 6; |
Jens Axboe | 838bc70 | 2008-05-22 13:08:23 +0200 | [diff] [blame] | 791 | break; |
| 792 | case 33 ... 64: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 793 | idx = 5; |
Jens Axboe | 838bc70 | 2008-05-22 13:08:23 +0200 | [diff] [blame] | 794 | break; |
| 795 | case 17 ... 32: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 796 | idx = 4; |
Jens Axboe | 838bc70 | 2008-05-22 13:08:23 +0200 | [diff] [blame] | 797 | break; |
| 798 | case 9 ... 16: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 799 | idx = 3; |
Jens Axboe | 838bc70 | 2008-05-22 13:08:23 +0200 | [diff] [blame] | 800 | break; |
| 801 | case 5 ... 8: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 802 | idx = 2; |
Jens Axboe | 838bc70 | 2008-05-22 13:08:23 +0200 | [diff] [blame] | 803 | break; |
| 804 | case 1 ... 4: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 805 | idx = 1; |
Jens Axboe | 838bc70 | 2008-05-22 13:08:23 +0200 | [diff] [blame] | 806 | case 0: |
| 807 | break; |
| 808 | } |
| 809 | |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 810 | map[idx]++; |
Jens Axboe | 838bc70 | 2008-05-22 13:08:23 +0200 | [diff] [blame] | 811 | } |
| 812 | |
| 813 | void io_u_mark_submit(struct thread_data *td, unsigned int nr) |
| 814 | { |
| 815 | __io_u_mark_map(td->ts.io_u_submit, nr); |
| 816 | td->ts.total_submit++; |
| 817 | } |
| 818 | |
| 819 | void io_u_mark_complete(struct thread_data *td, unsigned int nr) |
| 820 | { |
| 821 | __io_u_mark_map(td->ts.io_u_complete, nr); |
| 822 | td->ts.total_complete++; |
| 823 | } |
| 824 | |
Jens Axboe | d800575 | 2008-05-15 09:49:09 +0200 | [diff] [blame] | 825 | void io_u_mark_depth(struct thread_data *td, unsigned int nr) |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 826 | { |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 827 | int idx = 0; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 828 | |
| 829 | switch (td->cur_depth) { |
| 830 | default: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 831 | idx = 6; |
Jens Axboe | a783e61 | 2007-06-19 09:50:28 +0200 | [diff] [blame] | 832 | break; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 833 | case 32 ... 63: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 834 | idx = 5; |
Jens Axboe | a783e61 | 2007-06-19 09:50:28 +0200 | [diff] [blame] | 835 | break; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 836 | case 16 ... 31: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 837 | idx = 4; |
Jens Axboe | a783e61 | 2007-06-19 09:50:28 +0200 | [diff] [blame] | 838 | break; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 839 | case 8 ... 15: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 840 | idx = 3; |
Jens Axboe | a783e61 | 2007-06-19 09:50:28 +0200 | [diff] [blame] | 841 | break; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 842 | case 4 ... 7: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 843 | idx = 2; |
Jens Axboe | a783e61 | 2007-06-19 09:50:28 +0200 | [diff] [blame] | 844 | break; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 845 | case 2 ... 3: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 846 | idx = 1; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 847 | case 1: |
| 848 | break; |
| 849 | } |
| 850 | |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 851 | td->ts.io_u_map[idx] += nr; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 852 | } |
| 853 | |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 854 | static void io_u_mark_lat_usec(struct thread_data *td, unsigned long usec) |
| 855 | { |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 856 | int idx = 0; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 857 | |
| 858 | assert(usec < 1000); |
| 859 | |
| 860 | switch (usec) { |
| 861 | case 750 ... 999: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 862 | idx = 9; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 863 | break; |
| 864 | case 500 ... 749: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 865 | idx = 8; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 866 | break; |
| 867 | case 250 ... 499: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 868 | idx = 7; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 869 | break; |
| 870 | case 100 ... 249: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 871 | idx = 6; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 872 | break; |
| 873 | case 50 ... 99: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 874 | idx = 5; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 875 | break; |
| 876 | case 20 ... 49: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 877 | idx = 4; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 878 | break; |
| 879 | case 10 ... 19: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 880 | idx = 3; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 881 | break; |
| 882 | case 4 ... 9: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 883 | idx = 2; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 884 | break; |
| 885 | case 2 ... 3: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 886 | idx = 1; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 887 | case 0 ... 1: |
| 888 | break; |
| 889 | } |
| 890 | |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 891 | assert(idx < FIO_IO_U_LAT_U_NR); |
| 892 | td->ts.io_u_lat_u[idx]++; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 893 | } |
| 894 | |
| 895 | static void io_u_mark_lat_msec(struct thread_data *td, unsigned long msec) |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 896 | { |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 897 | int idx = 0; |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 898 | |
| 899 | switch (msec) { |
| 900 | default: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 901 | idx = 11; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 902 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 903 | case 1000 ... 1999: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 904 | idx = 10; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 905 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 906 | case 750 ... 999: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 907 | idx = 9; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 908 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 909 | case 500 ... 749: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 910 | idx = 8; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 911 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 912 | case 250 ... 499: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 913 | idx = 7; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 914 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 915 | case 100 ... 249: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 916 | idx = 6; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 917 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 918 | case 50 ... 99: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 919 | idx = 5; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 920 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 921 | case 20 ... 49: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 922 | idx = 4; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 923 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 924 | case 10 ... 19: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 925 | idx = 3; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 926 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 927 | case 4 ... 9: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 928 | idx = 2; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 929 | break; |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 930 | case 2 ... 3: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 931 | idx = 1; |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 932 | case 0 ... 1: |
| 933 | break; |
| 934 | } |
| 935 | |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 936 | assert(idx < FIO_IO_U_LAT_M_NR); |
| 937 | td->ts.io_u_lat_m[idx]++; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 938 | } |
| 939 | |
| 940 | static void io_u_mark_latency(struct thread_data *td, unsigned long usec) |
| 941 | { |
| 942 | if (usec < 1000) |
| 943 | io_u_mark_lat_usec(td, usec); |
| 944 | else |
| 945 | io_u_mark_lat_msec(td, usec / 1000); |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 946 | } |
| 947 | |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 948 | /* |
| 949 | * Get next file to service by choosing one at random |
| 950 | */ |
Jens Axboe | 2cc5293 | 2009-06-09 14:14:20 +0200 | [diff] [blame] | 951 | static struct fio_file *get_next_file_rand(struct thread_data *td, |
| 952 | enum fio_file_flags goodf, |
Jens Axboe | d6aed79 | 2009-06-03 08:41:15 +0200 | [diff] [blame] | 953 | enum fio_file_flags badf) |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 954 | { |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 955 | struct fio_file *f; |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 956 | int fno; |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 957 | |
| 958 | do { |
Jens Axboe | 87b1067 | 2009-03-04 09:39:47 +0100 | [diff] [blame] | 959 | int opened = 0; |
Jens Axboe | 1294c3e | 2011-05-11 08:15:18 +0200 | [diff] [blame] | 960 | unsigned long r; |
Jens Axboe | 7c83c08 | 2007-03-01 10:04:15 +0100 | [diff] [blame] | 961 | |
Jens Axboe | 559073f | 2014-11-05 18:34:02 -0700 | [diff] [blame^] | 962 | r = __rand(&td->__next_file_state); |
| 963 | fno = (unsigned int) ((double) td->o.nr_files |
Jens Axboe | 4c07ad8 | 2011-03-28 09:51:09 +0200 | [diff] [blame] | 964 | * (r / (FRAND_MAX + 1.0))); |
Jens Axboe | 4c07ad8 | 2011-03-28 09:51:09 +0200 | [diff] [blame] | 965 | |
Jens Axboe | 126d65c | 2008-03-01 18:04:31 +0100 | [diff] [blame] | 966 | f = td->files[fno]; |
Jens Axboe | d6aed79 | 2009-06-03 08:41:15 +0200 | [diff] [blame] | 967 | if (fio_file_done(f)) |
Jens Axboe | 059e63c | 2007-03-27 20:34:47 +0200 | [diff] [blame] | 968 | continue; |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 969 | |
Jens Axboe | d6aed79 | 2009-06-03 08:41:15 +0200 | [diff] [blame] | 970 | if (!fio_file_open(f)) { |
Jens Axboe | 87b1067 | 2009-03-04 09:39:47 +0100 | [diff] [blame] | 971 | int err; |
| 972 | |
Jens Axboe | 002fe73 | 2014-02-11 08:31:13 -0700 | [diff] [blame] | 973 | if (td->nr_open_files >= td->o.open_files) |
| 974 | return ERR_PTR(-EBUSY); |
| 975 | |
Jens Axboe | 87b1067 | 2009-03-04 09:39:47 +0100 | [diff] [blame] | 976 | err = td_io_open_file(td, f); |
| 977 | if (err) |
| 978 | continue; |
| 979 | opened = 1; |
| 980 | } |
| 981 | |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 982 | if ((!goodf || (f->flags & goodf)) && !(f->flags & badf)) { |
| 983 | dprint(FD_FILE, "get_next_file_rand: %p\n", f); |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 984 | return f; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 985 | } |
Jens Axboe | 87b1067 | 2009-03-04 09:39:47 +0100 | [diff] [blame] | 986 | if (opened) |
| 987 | td_io_close_file(td, f); |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 988 | } while (1); |
| 989 | } |
| 990 | |
| 991 | /* |
| 992 | * Get next file to service by doing round robin between all available ones |
| 993 | */ |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 994 | static struct fio_file *get_next_file_rr(struct thread_data *td, int goodf, |
| 995 | int badf) |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 996 | { |
| 997 | unsigned int old_next_file = td->next_file; |
| 998 | struct fio_file *f; |
| 999 | |
| 1000 | do { |
Jens Axboe | 87b1067 | 2009-03-04 09:39:47 +0100 | [diff] [blame] | 1001 | int opened = 0; |
| 1002 | |
Jens Axboe | 126d65c | 2008-03-01 18:04:31 +0100 | [diff] [blame] | 1003 | f = td->files[td->next_file]; |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 1004 | |
| 1005 | td->next_file++; |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 1006 | if (td->next_file >= td->o.nr_files) |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 1007 | td->next_file = 0; |
| 1008 | |
Jens Axboe | 87b1067 | 2009-03-04 09:39:47 +0100 | [diff] [blame] | 1009 | dprint(FD_FILE, "trying file %s %x\n", f->file_name, f->flags); |
Jens Axboe | d6aed79 | 2009-06-03 08:41:15 +0200 | [diff] [blame] | 1010 | if (fio_file_done(f)) { |
Jens Axboe | d5ed68e | 2007-03-28 09:33:43 +0200 | [diff] [blame] | 1011 | f = NULL; |
Jens Axboe | 059e63c | 2007-03-27 20:34:47 +0200 | [diff] [blame] | 1012 | continue; |
Jens Axboe | d5ed68e | 2007-03-28 09:33:43 +0200 | [diff] [blame] | 1013 | } |
Jens Axboe | 059e63c | 2007-03-27 20:34:47 +0200 | [diff] [blame] | 1014 | |
Jens Axboe | d6aed79 | 2009-06-03 08:41:15 +0200 | [diff] [blame] | 1015 | if (!fio_file_open(f)) { |
Jens Axboe | 87b1067 | 2009-03-04 09:39:47 +0100 | [diff] [blame] | 1016 | int err; |
| 1017 | |
Jens Axboe | 002fe73 | 2014-02-11 08:31:13 -0700 | [diff] [blame] | 1018 | if (td->nr_open_files >= td->o.open_files) |
| 1019 | return ERR_PTR(-EBUSY); |
| 1020 | |
Jens Axboe | 87b1067 | 2009-03-04 09:39:47 +0100 | [diff] [blame] | 1021 | err = td_io_open_file(td, f); |
Jens Axboe | b5696bf | 2009-03-04 16:03:49 +0100 | [diff] [blame] | 1022 | if (err) { |
| 1023 | dprint(FD_FILE, "error %d on open of %s\n", |
| 1024 | err, f->file_name); |
Jens Axboe | 87c27b4 | 2009-05-20 10:45:12 +0200 | [diff] [blame] | 1025 | f = NULL; |
Jens Axboe | 87b1067 | 2009-03-04 09:39:47 +0100 | [diff] [blame] | 1026 | continue; |
Jens Axboe | b5696bf | 2009-03-04 16:03:49 +0100 | [diff] [blame] | 1027 | } |
Jens Axboe | 87b1067 | 2009-03-04 09:39:47 +0100 | [diff] [blame] | 1028 | opened = 1; |
| 1029 | } |
| 1030 | |
Jens Axboe | 0b9d69e | 2009-09-11 22:29:54 +0200 | [diff] [blame] | 1031 | dprint(FD_FILE, "goodf=%x, badf=%x, ff=%x\n", goodf, badf, |
| 1032 | f->flags); |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 1033 | if ((!goodf || (f->flags & goodf)) && !(f->flags & badf)) |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 1034 | break; |
| 1035 | |
Jens Axboe | 87b1067 | 2009-03-04 09:39:47 +0100 | [diff] [blame] | 1036 | if (opened) |
| 1037 | td_io_close_file(td, f); |
| 1038 | |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 1039 | f = NULL; |
| 1040 | } while (td->next_file != old_next_file); |
| 1041 | |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 1042 | dprint(FD_FILE, "get_next_file_rr: %p\n", f); |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 1043 | return f; |
| 1044 | } |
| 1045 | |
Jens Axboe | 7eb3657 | 2010-03-08 13:58:49 +0100 | [diff] [blame] | 1046 | static struct fio_file *__get_next_file(struct thread_data *td) |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 1047 | { |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 1048 | struct fio_file *f; |
| 1049 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 1050 | assert(td->o.nr_files <= td->files_index); |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 1051 | |
Jens Axboe | b5696bf | 2009-03-04 16:03:49 +0100 | [diff] [blame] | 1052 | if (td->nr_done_files >= td->o.nr_files) { |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 1053 | dprint(FD_FILE, "get_next_file: nr_open=%d, nr_done=%d," |
| 1054 | " nr_files=%d\n", td->nr_open_files, |
| 1055 | td->nr_done_files, |
| 1056 | td->o.nr_files); |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 1057 | return NULL; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 1058 | } |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 1059 | |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 1060 | f = td->file_service_file; |
Jens Axboe | d6aed79 | 2009-06-03 08:41:15 +0200 | [diff] [blame] | 1061 | if (f && fio_file_open(f) && !fio_file_closing(f)) { |
Jens Axboe | a086c25 | 2009-03-04 08:27:37 +0100 | [diff] [blame] | 1062 | if (td->o.file_service_type == FIO_FSERVICE_SEQ) |
| 1063 | goto out; |
| 1064 | if (td->file_service_left--) |
| 1065 | goto out; |
| 1066 | } |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 1067 | |
Jens Axboe | a086c25 | 2009-03-04 08:27:37 +0100 | [diff] [blame] | 1068 | if (td->o.file_service_type == FIO_FSERVICE_RR || |
| 1069 | td->o.file_service_type == FIO_FSERVICE_SEQ) |
Jens Axboe | d6aed79 | 2009-06-03 08:41:15 +0200 | [diff] [blame] | 1070 | f = get_next_file_rr(td, FIO_FILE_open, FIO_FILE_closing); |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 1071 | else |
Jens Axboe | d6aed79 | 2009-06-03 08:41:15 +0200 | [diff] [blame] | 1072 | f = get_next_file_rand(td, FIO_FILE_open, FIO_FILE_closing); |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 1073 | |
Jens Axboe | 002fe73 | 2014-02-11 08:31:13 -0700 | [diff] [blame] | 1074 | if (IS_ERR(f)) |
| 1075 | return f; |
| 1076 | |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 1077 | td->file_service_file = f; |
| 1078 | td->file_service_left = td->file_service_nr - 1; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 1079 | out: |
Jens Axboe | 0dac421 | 2014-02-25 13:43:17 -0800 | [diff] [blame] | 1080 | if (f) |
| 1081 | dprint(FD_FILE, "get_next_file: %p [%s]\n", f, f->file_name); |
| 1082 | else |
| 1083 | dprint(FD_FILE, "get_next_file: NULL\n"); |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 1084 | return f; |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 1085 | } |
| 1086 | |
Jens Axboe | 7eb3657 | 2010-03-08 13:58:49 +0100 | [diff] [blame] | 1087 | static struct fio_file *get_next_file(struct thread_data *td) |
| 1088 | { |
Andrey Kuzmin | 705fa7e | 2014-06-27 20:21:22 -0600 | [diff] [blame] | 1089 | if (td->flags & TD_F_PROFILE_OPS) { |
Jens Axboe | d72be54 | 2012-11-30 19:37:46 +0100 | [diff] [blame] | 1090 | struct prof_io_ops *ops = &td->prof_io_ops; |
Jens Axboe | 7eb3657 | 2010-03-08 13:58:49 +0100 | [diff] [blame] | 1091 | |
Jens Axboe | d72be54 | 2012-11-30 19:37:46 +0100 | [diff] [blame] | 1092 | if (ops->get_next_file) |
| 1093 | return ops->get_next_file(td); |
| 1094 | } |
Jens Axboe | 7eb3657 | 2010-03-08 13:58:49 +0100 | [diff] [blame] | 1095 | |
| 1096 | return __get_next_file(td); |
| 1097 | } |
| 1098 | |
Jens Axboe | 002fe73 | 2014-02-11 08:31:13 -0700 | [diff] [blame] | 1099 | static long set_io_u_file(struct thread_data *td, struct io_u *io_u) |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 1100 | { |
| 1101 | struct fio_file *f; |
| 1102 | |
| 1103 | do { |
| 1104 | f = get_next_file(td); |
Jens Axboe | 002fe73 | 2014-02-11 08:31:13 -0700 | [diff] [blame] | 1105 | if (IS_ERR_OR_NULL(f)) |
| 1106 | return PTR_ERR(f); |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 1107 | |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 1108 | io_u->file = f; |
| 1109 | get_file(f); |
| 1110 | |
| 1111 | if (!fill_io_u(td, io_u)) |
| 1112 | break; |
| 1113 | |
Jens Axboe | b5696bf | 2009-03-04 16:03:49 +0100 | [diff] [blame] | 1114 | put_file_log(td, f); |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 1115 | td_io_close_file(td, f); |
Jens Axboe | b5696bf | 2009-03-04 16:03:49 +0100 | [diff] [blame] | 1116 | io_u->file = NULL; |
Jens Axboe | d6aed79 | 2009-06-03 08:41:15 +0200 | [diff] [blame] | 1117 | fio_file_set_done(f); |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 1118 | td->nr_done_files++; |
Jens Axboe | 0b9d69e | 2009-09-11 22:29:54 +0200 | [diff] [blame] | 1119 | dprint(FD_FILE, "%s: is done (%d of %d)\n", f->file_name, |
| 1120 | td->nr_done_files, td->o.nr_files); |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 1121 | } while (1); |
| 1122 | |
| 1123 | return 0; |
| 1124 | } |
| 1125 | |
Jens Axboe | 3e260a4 | 2013-12-09 12:38:53 -0700 | [diff] [blame] | 1126 | static void lat_fatal(struct thread_data *td, struct io_completion_data *icd, |
| 1127 | unsigned long tusec, unsigned long max_usec) |
| 1128 | { |
| 1129 | if (!td->error) |
| 1130 | log_err("fio: latency of %lu usec exceeds specified max (%lu usec)\n", tusec, max_usec); |
| 1131 | td_verror(td, ETIMEDOUT, "max latency exceeded"); |
| 1132 | icd->error = ETIMEDOUT; |
| 1133 | } |
| 1134 | |
| 1135 | static void lat_new_cycle(struct thread_data *td) |
| 1136 | { |
| 1137 | fio_gettime(&td->latency_ts, NULL); |
| 1138 | td->latency_ios = ddir_rw_sum(td->io_blocks); |
| 1139 | td->latency_failed = 0; |
| 1140 | } |
| 1141 | |
| 1142 | /* |
| 1143 | * We had an IO outside the latency target. Reduce the queue depth. If we |
| 1144 | * are at QD=1, then it's time to give up. |
| 1145 | */ |
| 1146 | static int __lat_target_failed(struct thread_data *td) |
| 1147 | { |
| 1148 | if (td->latency_qd == 1) |
| 1149 | return 1; |
| 1150 | |
| 1151 | td->latency_qd_high = td->latency_qd; |
Jens Axboe | 6bb5821 | 2014-02-21 13:55:31 -0800 | [diff] [blame] | 1152 | |
| 1153 | if (td->latency_qd == td->latency_qd_low) |
| 1154 | td->latency_qd_low--; |
| 1155 | |
Jens Axboe | 3e260a4 | 2013-12-09 12:38:53 -0700 | [diff] [blame] | 1156 | td->latency_qd = (td->latency_qd + td->latency_qd_low) / 2; |
| 1157 | |
| 1158 | dprint(FD_RATE, "Ramped down: %d %d %d\n", td->latency_qd_low, td->latency_qd, td->latency_qd_high); |
| 1159 | |
| 1160 | /* |
| 1161 | * When we ramp QD down, quiesce existing IO to prevent |
| 1162 | * a storm of ramp downs due to pending higher depth. |
| 1163 | */ |
| 1164 | io_u_quiesce(td); |
| 1165 | lat_new_cycle(td); |
| 1166 | return 0; |
| 1167 | } |
| 1168 | |
| 1169 | static int lat_target_failed(struct thread_data *td) |
| 1170 | { |
| 1171 | if (td->o.latency_percentile.u.f == 100.0) |
| 1172 | return __lat_target_failed(td); |
| 1173 | |
| 1174 | td->latency_failed++; |
| 1175 | return 0; |
| 1176 | } |
| 1177 | |
| 1178 | void lat_target_init(struct thread_data *td) |
| 1179 | { |
Jens Axboe | 6bb5821 | 2014-02-21 13:55:31 -0800 | [diff] [blame] | 1180 | td->latency_end_run = 0; |
| 1181 | |
Jens Axboe | 3e260a4 | 2013-12-09 12:38:53 -0700 | [diff] [blame] | 1182 | if (td->o.latency_target) { |
| 1183 | dprint(FD_RATE, "Latency target=%llu\n", td->o.latency_target); |
| 1184 | fio_gettime(&td->latency_ts, NULL); |
| 1185 | td->latency_qd = 1; |
| 1186 | td->latency_qd_high = td->o.iodepth; |
| 1187 | td->latency_qd_low = 1; |
| 1188 | td->latency_ios = ddir_rw_sum(td->io_blocks); |
| 1189 | } else |
| 1190 | td->latency_qd = td->o.iodepth; |
| 1191 | } |
| 1192 | |
Jens Axboe | 6bb5821 | 2014-02-21 13:55:31 -0800 | [diff] [blame] | 1193 | void lat_target_reset(struct thread_data *td) |
| 1194 | { |
| 1195 | if (!td->latency_end_run) |
| 1196 | lat_target_init(td); |
| 1197 | } |
| 1198 | |
Jens Axboe | 3e260a4 | 2013-12-09 12:38:53 -0700 | [diff] [blame] | 1199 | static void lat_target_success(struct thread_data *td) |
| 1200 | { |
| 1201 | const unsigned int qd = td->latency_qd; |
Jens Axboe | 6bb5821 | 2014-02-21 13:55:31 -0800 | [diff] [blame] | 1202 | struct thread_options *o = &td->o; |
Jens Axboe | 3e260a4 | 2013-12-09 12:38:53 -0700 | [diff] [blame] | 1203 | |
| 1204 | td->latency_qd_low = td->latency_qd; |
| 1205 | |
| 1206 | /* |
| 1207 | * If we haven't failed yet, we double up to a failing value instead |
| 1208 | * of bisecting from highest possible queue depth. If we have set |
| 1209 | * a limit other than td->o.iodepth, bisect between that. |
| 1210 | */ |
Jens Axboe | 6bb5821 | 2014-02-21 13:55:31 -0800 | [diff] [blame] | 1211 | if (td->latency_qd_high != o->iodepth) |
Jens Axboe | 3e260a4 | 2013-12-09 12:38:53 -0700 | [diff] [blame] | 1212 | td->latency_qd = (td->latency_qd + td->latency_qd_high) / 2; |
| 1213 | else |
| 1214 | td->latency_qd *= 2; |
| 1215 | |
Jens Axboe | 6bb5821 | 2014-02-21 13:55:31 -0800 | [diff] [blame] | 1216 | if (td->latency_qd > o->iodepth) |
| 1217 | td->latency_qd = o->iodepth; |
Jens Axboe | 3e260a4 | 2013-12-09 12:38:53 -0700 | [diff] [blame] | 1218 | |
| 1219 | dprint(FD_RATE, "Ramped up: %d %d %d\n", td->latency_qd_low, td->latency_qd, td->latency_qd_high); |
Jens Axboe | 6bb5821 | 2014-02-21 13:55:31 -0800 | [diff] [blame] | 1220 | |
Jens Axboe | 3e260a4 | 2013-12-09 12:38:53 -0700 | [diff] [blame] | 1221 | /* |
Jens Axboe | 6bb5821 | 2014-02-21 13:55:31 -0800 | [diff] [blame] | 1222 | * Same as last one, we are done. Let it run a latency cycle, so |
| 1223 | * we get only the results from the targeted depth. |
Jens Axboe | 3e260a4 | 2013-12-09 12:38:53 -0700 | [diff] [blame] | 1224 | */ |
Jens Axboe | 6bb5821 | 2014-02-21 13:55:31 -0800 | [diff] [blame] | 1225 | if (td->latency_qd == qd) { |
| 1226 | if (td->latency_end_run) { |
| 1227 | dprint(FD_RATE, "We are done\n"); |
| 1228 | td->done = 1; |
| 1229 | } else { |
| 1230 | dprint(FD_RATE, "Quiesce and final run\n"); |
| 1231 | io_u_quiesce(td); |
| 1232 | td->latency_end_run = 1; |
| 1233 | reset_all_stats(td); |
| 1234 | reset_io_stats(td); |
| 1235 | } |
| 1236 | } |
Jens Axboe | 3e260a4 | 2013-12-09 12:38:53 -0700 | [diff] [blame] | 1237 | |
| 1238 | lat_new_cycle(td); |
| 1239 | } |
| 1240 | |
| 1241 | /* |
| 1242 | * Check if we can bump the queue depth |
| 1243 | */ |
| 1244 | void lat_target_check(struct thread_data *td) |
| 1245 | { |
| 1246 | uint64_t usec_window; |
| 1247 | uint64_t ios; |
| 1248 | double success_ios; |
| 1249 | |
| 1250 | usec_window = utime_since_now(&td->latency_ts); |
| 1251 | if (usec_window < td->o.latency_window) |
| 1252 | return; |
| 1253 | |
| 1254 | ios = ddir_rw_sum(td->io_blocks) - td->latency_ios; |
| 1255 | success_ios = (double) (ios - td->latency_failed) / (double) ios; |
| 1256 | success_ios *= 100.0; |
| 1257 | |
| 1258 | dprint(FD_RATE, "Success rate: %.2f%% (target %.2f%%)\n", success_ios, td->o.latency_percentile.u.f); |
| 1259 | |
| 1260 | if (success_ios >= td->o.latency_percentile.u.f) |
| 1261 | lat_target_success(td); |
| 1262 | else |
| 1263 | __lat_target_failed(td); |
| 1264 | } |
| 1265 | |
| 1266 | /* |
| 1267 | * If latency target is enabled, we might be ramping up or down and not |
| 1268 | * using the full queue depth available. |
| 1269 | */ |
Jens Axboe | 5a48d30 | 2014-09-30 13:29:57 -0600 | [diff] [blame] | 1270 | int queue_full(const struct thread_data *td) |
Jens Axboe | 3e260a4 | 2013-12-09 12:38:53 -0700 | [diff] [blame] | 1271 | { |
| 1272 | const int qempty = io_u_qempty(&td->io_u_freelist); |
| 1273 | |
| 1274 | if (qempty) |
| 1275 | return 1; |
| 1276 | if (!td->o.latency_target) |
| 1277 | return 0; |
| 1278 | |
| 1279 | return td->cur_depth >= td->latency_qd; |
| 1280 | } |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 1281 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1282 | struct io_u *__get_io_u(struct thread_data *td) |
| 1283 | { |
Jens Axboe | 0cae66f | 2014-03-03 13:55:32 -0700 | [diff] [blame] | 1284 | struct io_u *io_u = NULL; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1285 | |
Jens Axboe | e8462bd | 2009-07-06 12:59:04 +0200 | [diff] [blame] | 1286 | td_io_u_lock(td); |
| 1287 | |
| 1288 | again: |
Jens Axboe | 2ae0b20 | 2013-05-28 14:16:55 +0200 | [diff] [blame] | 1289 | if (!io_u_rempty(&td->io_u_requeues)) |
| 1290 | io_u = io_u_rpop(&td->io_u_requeues); |
Jens Axboe | 3e260a4 | 2013-12-09 12:38:53 -0700 | [diff] [blame] | 1291 | else if (!queue_full(td)) { |
Jens Axboe | 2ae0b20 | 2013-05-28 14:16:55 +0200 | [diff] [blame] | 1292 | io_u = io_u_qpop(&td->io_u_freelist); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1293 | |
Jens Axboe | 225ba9e | 2014-02-26 14:31:15 -0800 | [diff] [blame] | 1294 | io_u->file = NULL; |
Jens Axboe | 6040dab | 2006-10-24 19:38:15 +0200 | [diff] [blame] | 1295 | io_u->buflen = 0; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1296 | io_u->resid = 0; |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 1297 | io_u->end_io = NULL; |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 1298 | } |
| 1299 | |
| 1300 | if (io_u) { |
Jens Axboe | 0c6e751 | 2007-02-22 11:19:39 +0100 | [diff] [blame] | 1301 | assert(io_u->flags & IO_U_F_FREE); |
Jens Axboe | e69fdf7 | 2014-07-23 16:11:43 +0200 | [diff] [blame] | 1302 | io_u->flags &= ~(IO_U_F_FREE | IO_U_F_NO_FILE_PUT | |
| 1303 | IO_U_F_TRIMMED | IO_U_F_BARRIER | |
| 1304 | IO_U_F_VER_LIST); |
Jens Axboe | 0c6e751 | 2007-02-22 11:19:39 +0100 | [diff] [blame] | 1305 | |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 1306 | io_u->error = 0; |
Jens Axboe | bcd5abf | 2013-01-23 09:27:25 -0700 | [diff] [blame] | 1307 | io_u->acct_ddir = -1; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1308 | td->cur_depth++; |
Radha Ramachandran | 0c41214 | 2009-11-03 21:45:31 +0100 | [diff] [blame] | 1309 | io_u->flags |= IO_U_F_IN_CUR_DEPTH; |
Jens Axboe | f940128 | 2014-02-06 12:17:37 -0700 | [diff] [blame] | 1310 | io_u->ipo = NULL; |
Jens Axboe | 1dec3e0 | 2010-03-19 10:33:39 +0100 | [diff] [blame] | 1311 | } else if (td->o.verify_async) { |
| 1312 | /* |
| 1313 | * We ran out, wait for async verify threads to finish and |
| 1314 | * return one |
| 1315 | */ |
| 1316 | pthread_cond_wait(&td->free_cond, &td->io_u_lock); |
| 1317 | goto again; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1318 | } |
| 1319 | |
Jens Axboe | e8462bd | 2009-07-06 12:59:04 +0200 | [diff] [blame] | 1320 | td_io_u_unlock(td); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1321 | return io_u; |
| 1322 | } |
| 1323 | |
Jens Axboe | 0d29de8 | 2010-09-01 13:54:15 +0200 | [diff] [blame] | 1324 | static int check_get_trim(struct thread_data *td, struct io_u *io_u) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1325 | { |
Jens Axboe | d72be54 | 2012-11-30 19:37:46 +0100 | [diff] [blame] | 1326 | if (!(td->flags & TD_F_TRIM_BACKLOG)) |
| 1327 | return 0; |
| 1328 | |
| 1329 | if (td->trim_entries) { |
Jens Axboe | 0d29de8 | 2010-09-01 13:54:15 +0200 | [diff] [blame] | 1330 | int get_trim = 0; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1331 | |
Jens Axboe | 0d29de8 | 2010-09-01 13:54:15 +0200 | [diff] [blame] | 1332 | if (td->trim_batch) { |
| 1333 | td->trim_batch--; |
| 1334 | get_trim = 1; |
| 1335 | } else if (!(td->io_hist_len % td->o.trim_backlog) && |
| 1336 | td->last_ddir != DDIR_READ) { |
| 1337 | td->trim_batch = td->o.trim_batch; |
| 1338 | if (!td->trim_batch) |
| 1339 | td->trim_batch = td->o.trim_backlog; |
| 1340 | get_trim = 1; |
| 1341 | } |
| 1342 | |
| 1343 | if (get_trim && !get_next_trim(td, io_u)) |
| 1344 | return 1; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 1345 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1346 | |
Jens Axboe | 0d29de8 | 2010-09-01 13:54:15 +0200 | [diff] [blame] | 1347 | return 0; |
| 1348 | } |
| 1349 | |
| 1350 | static int check_get_verify(struct thread_data *td, struct io_u *io_u) |
| 1351 | { |
Jens Axboe | d72be54 | 2012-11-30 19:37:46 +0100 | [diff] [blame] | 1352 | if (!(td->flags & TD_F_VER_BACKLOG)) |
| 1353 | return 0; |
| 1354 | |
| 1355 | if (td->io_hist_len) { |
Jens Axboe | 9e14418 | 2010-06-15 14:25:36 +0200 | [diff] [blame] | 1356 | int get_verify = 0; |
| 1357 | |
Jens Axboe | d1ece0c | 2012-03-07 09:32:58 +0100 | [diff] [blame] | 1358 | if (td->verify_batch) |
Jens Axboe | 9e14418 | 2010-06-15 14:25:36 +0200 | [diff] [blame] | 1359 | get_verify = 1; |
Jens Axboe | d1ece0c | 2012-03-07 09:32:58 +0100 | [diff] [blame] | 1360 | else if (!(td->io_hist_len % td->o.verify_backlog) && |
Jens Axboe | 9e14418 | 2010-06-15 14:25:36 +0200 | [diff] [blame] | 1361 | td->last_ddir != DDIR_READ) { |
| 1362 | td->verify_batch = td->o.verify_batch; |
Jens Axboe | f8a75c9 | 2010-06-15 14:27:28 +0200 | [diff] [blame] | 1363 | if (!td->verify_batch) |
| 1364 | td->verify_batch = td->o.verify_backlog; |
Jens Axboe | 9e14418 | 2010-06-15 14:25:36 +0200 | [diff] [blame] | 1365 | get_verify = 1; |
| 1366 | } |
| 1367 | |
Jens Axboe | d1ece0c | 2012-03-07 09:32:58 +0100 | [diff] [blame] | 1368 | if (get_verify && !get_next_verify(td, io_u)) { |
| 1369 | td->verify_batch--; |
Jens Axboe | 0d29de8 | 2010-09-01 13:54:15 +0200 | [diff] [blame] | 1370 | return 1; |
Jens Axboe | d1ece0c | 2012-03-07 09:32:58 +0100 | [diff] [blame] | 1371 | } |
Jens Axboe | 9e14418 | 2010-06-15 14:25:36 +0200 | [diff] [blame] | 1372 | } |
| 1373 | |
Jens Axboe | 0d29de8 | 2010-09-01 13:54:15 +0200 | [diff] [blame] | 1374 | return 0; |
| 1375 | } |
| 1376 | |
| 1377 | /* |
Jens Axboe | de78976 | 2011-09-16 22:11:23 +0200 | [diff] [blame] | 1378 | * Fill offset and start time into the buffer content, to prevent too |
Jens Axboe | 23f394d | 2011-09-16 22:45:27 +0200 | [diff] [blame] | 1379 | * easy compressible data for simple de-dupe attempts. Do this for every |
| 1380 | * 512b block in the range, since that should be the smallest block size |
| 1381 | * we can expect from a device. |
Jens Axboe | de78976 | 2011-09-16 22:11:23 +0200 | [diff] [blame] | 1382 | */ |
| 1383 | static void small_content_scramble(struct io_u *io_u) |
| 1384 | { |
Jens Axboe | 23f394d | 2011-09-16 22:45:27 +0200 | [diff] [blame] | 1385 | unsigned int i, nr_blocks = io_u->buflen / 512; |
Jens Axboe | 1ae83d4 | 2013-01-12 01:44:15 -0700 | [diff] [blame] | 1386 | uint64_t boffset; |
Jens Axboe | 23f394d | 2011-09-16 22:45:27 +0200 | [diff] [blame] | 1387 | unsigned int offset; |
| 1388 | void *p, *end; |
Jens Axboe | de78976 | 2011-09-16 22:11:23 +0200 | [diff] [blame] | 1389 | |
Jens Axboe | 23f394d | 2011-09-16 22:45:27 +0200 | [diff] [blame] | 1390 | if (!nr_blocks) |
| 1391 | return; |
| 1392 | |
| 1393 | p = io_u->xfer_buf; |
Jens Axboe | fba76ee | 2011-09-27 14:27:48 -0600 | [diff] [blame] | 1394 | boffset = io_u->offset; |
Jens Axboe | 81f0366 | 2012-02-02 09:20:09 +0100 | [diff] [blame] | 1395 | io_u->buf_filled_len = 0; |
Jens Axboe | fad82f7 | 2011-09-19 11:33:30 +0200 | [diff] [blame] | 1396 | |
Jens Axboe | 23f394d | 2011-09-16 22:45:27 +0200 | [diff] [blame] | 1397 | for (i = 0; i < nr_blocks; i++) { |
| 1398 | /* |
| 1399 | * Fill the byte offset into a "random" start offset of |
| 1400 | * the buffer, given by the product of the usec time |
| 1401 | * and the actual offset. |
| 1402 | */ |
Jens Axboe | fad82f7 | 2011-09-19 11:33:30 +0200 | [diff] [blame] | 1403 | offset = (io_u->start_time.tv_usec ^ boffset) & 511; |
Jens Axboe | 1ae83d4 | 2013-01-12 01:44:15 -0700 | [diff] [blame] | 1404 | offset &= ~(sizeof(uint64_t) - 1); |
| 1405 | if (offset >= 512 - sizeof(uint64_t)) |
| 1406 | offset -= sizeof(uint64_t); |
Jens Axboe | fba76ee | 2011-09-27 14:27:48 -0600 | [diff] [blame] | 1407 | memcpy(p + offset, &boffset, sizeof(boffset)); |
Jens Axboe | 23f394d | 2011-09-16 22:45:27 +0200 | [diff] [blame] | 1408 | |
| 1409 | end = p + 512 - sizeof(io_u->start_time); |
| 1410 | memcpy(end, &io_u->start_time, sizeof(io_u->start_time)); |
| 1411 | p += 512; |
Jens Axboe | fad82f7 | 2011-09-19 11:33:30 +0200 | [diff] [blame] | 1412 | boffset += 512; |
Jens Axboe | 23f394d | 2011-09-16 22:45:27 +0200 | [diff] [blame] | 1413 | } |
Jens Axboe | de78976 | 2011-09-16 22:11:23 +0200 | [diff] [blame] | 1414 | } |
| 1415 | |
| 1416 | /* |
Jens Axboe | 0d29de8 | 2010-09-01 13:54:15 +0200 | [diff] [blame] | 1417 | * Return an io_u to be processed. Gets a buflen and offset, sets direction, |
| 1418 | * etc. The returned io_u is fully ready to be prepped and submitted. |
| 1419 | */ |
| 1420 | struct io_u *get_io_u(struct thread_data *td) |
| 1421 | { |
| 1422 | struct fio_file *f; |
| 1423 | struct io_u *io_u; |
Jens Axboe | de78976 | 2011-09-16 22:11:23 +0200 | [diff] [blame] | 1424 | int do_scramble = 0; |
Jens Axboe | 002fe73 | 2014-02-11 08:31:13 -0700 | [diff] [blame] | 1425 | long ret = 0; |
Jens Axboe | 0d29de8 | 2010-09-01 13:54:15 +0200 | [diff] [blame] | 1426 | |
| 1427 | io_u = __get_io_u(td); |
| 1428 | if (!io_u) { |
| 1429 | dprint(FD_IO, "__get_io_u failed\n"); |
| 1430 | return NULL; |
| 1431 | } |
| 1432 | |
| 1433 | if (check_get_verify(td, io_u)) |
| 1434 | goto out; |
| 1435 | if (check_get_trim(td, io_u)) |
| 1436 | goto out; |
| 1437 | |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 1438 | /* |
| 1439 | * from a requeue, io_u already setup |
| 1440 | */ |
| 1441 | if (io_u->file) |
Jens Axboe | 77f392b | 2007-02-19 20:13:09 +0100 | [diff] [blame] | 1442 | goto out; |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 1443 | |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 1444 | /* |
| 1445 | * If using an iolog, grab next piece if any available. |
| 1446 | */ |
Jens Axboe | d72be54 | 2012-11-30 19:37:46 +0100 | [diff] [blame] | 1447 | if (td->flags & TD_F_READ_IOLOG) { |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 1448 | if (read_iolog_get(td, io_u)) |
| 1449 | goto err_put; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 1450 | } else if (set_io_u_file(td, io_u)) { |
Jens Axboe | 002fe73 | 2014-02-11 08:31:13 -0700 | [diff] [blame] | 1451 | ret = -EBUSY; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 1452 | dprint(FD_IO, "io_u %p, setting file failed\n", io_u); |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 1453 | goto err_put; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 1454 | } |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 1455 | |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 1456 | f = io_u->file; |
Jens Axboe | 002fe73 | 2014-02-11 08:31:13 -0700 | [diff] [blame] | 1457 | if (!f) { |
| 1458 | dprint(FD_IO, "io_u %p, setting file failed\n", io_u); |
| 1459 | goto err_put; |
| 1460 | } |
| 1461 | |
Jens Axboe | d6aed79 | 2009-06-03 08:41:15 +0200 | [diff] [blame] | 1462 | assert(fio_file_open(f)); |
Jens Axboe | 97af62c | 2007-05-22 11:12:13 +0200 | [diff] [blame] | 1463 | |
Jens Axboe | ff58fce | 2010-08-25 12:02:08 +0200 | [diff] [blame] | 1464 | if (ddir_rw(io_u->ddir)) { |
Jens Axboe | d0656a9 | 2008-02-01 18:33:23 +0100 | [diff] [blame] | 1465 | if (!io_u->buflen && !(td->io_ops->flags & FIO_NOIO)) { |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 1466 | dprint(FD_IO, "get_io_u: zero buflen on %p\n", io_u); |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 1467 | goto err_put; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 1468 | } |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 1469 | |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 1470 | f->last_start = io_u->offset; |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 1471 | f->last_pos = io_u->offset + io_u->buflen; |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 1472 | |
Jens Axboe | fd68418 | 2011-09-19 09:24:44 +0200 | [diff] [blame] | 1473 | if (io_u->ddir == DDIR_WRITE) { |
Jens Axboe | d72be54 | 2012-11-30 19:37:46 +0100 | [diff] [blame] | 1474 | if (td->flags & TD_F_REFILL_BUFFERS) { |
Jens Axboe | 9c42684 | 2012-03-02 21:02:12 +0100 | [diff] [blame] | 1475 | io_u_fill_buffer(td, io_u, |
Jens Axboe | 8e0aa16 | 2014-09-26 15:04:58 -0600 | [diff] [blame] | 1476 | td->o.min_bs[DDIR_WRITE], |
| 1477 | io_u->xfer_buflen); |
Jens Axboe | bedc9dc | 2014-03-17 12:51:09 -0600 | [diff] [blame] | 1478 | } else if ((td->flags & TD_F_SCRAMBLE_BUFFERS) && |
| 1479 | !(td->flags & TD_F_COMPRESS)) |
Jens Axboe | fd68418 | 2011-09-19 09:24:44 +0200 | [diff] [blame] | 1480 | do_scramble = 1; |
Jens Axboe | d72be54 | 2012-11-30 19:37:46 +0100 | [diff] [blame] | 1481 | if (td->flags & TD_F_VER_NONE) { |
Jens Axboe | 629f1d7 | 2012-03-09 19:02:01 +0100 | [diff] [blame] | 1482 | populate_verify_io_u(td, io_u); |
| 1483 | do_scramble = 0; |
| 1484 | } |
Jens Axboe | fd68418 | 2011-09-19 09:24:44 +0200 | [diff] [blame] | 1485 | } else if (io_u->ddir == DDIR_READ) { |
Radha Ramachandran | cbe8d75 | 2010-07-14 08:36:07 +0200 | [diff] [blame] | 1486 | /* |
| 1487 | * Reset the buf_filled parameters so next time if the |
| 1488 | * buffer is used for writes it is refilled. |
| 1489 | */ |
Radha Ramachandran | cbe8d75 | 2010-07-14 08:36:07 +0200 | [diff] [blame] | 1490 | io_u->buf_filled_len = 0; |
| 1491 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1492 | } |
| 1493 | |
Jens Axboe | 165faf1 | 2007-02-07 11:30:37 +0100 | [diff] [blame] | 1494 | /* |
| 1495 | * Set io data pointers. |
| 1496 | */ |
Jens Axboe | cec6b55 | 2007-02-06 20:15:38 +0100 | [diff] [blame] | 1497 | io_u->xfer_buf = io_u->buf; |
| 1498 | io_u->xfer_buflen = io_u->buflen; |
Jens Axboe | 5973caf | 2008-05-21 19:52:35 +0200 | [diff] [blame] | 1499 | |
Jens Axboe | 6ac7a33 | 2008-03-01 15:22:32 +0100 | [diff] [blame] | 1500 | out: |
Jens Axboe | 0d29de8 | 2010-09-01 13:54:15 +0200 | [diff] [blame] | 1501 | assert(io_u->file); |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 1502 | if (!td_io_prep(td, io_u)) { |
Jens Axboe | 993bf48 | 2008-11-14 13:04:53 +0100 | [diff] [blame] | 1503 | if (!td->o.disable_slat) |
| 1504 | fio_gettime(&io_u->start_time, NULL); |
Jens Axboe | de78976 | 2011-09-16 22:11:23 +0200 | [diff] [blame] | 1505 | if (do_scramble) |
| 1506 | small_content_scramble(io_u); |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 1507 | return io_u; |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 1508 | } |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 1509 | err_put: |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 1510 | dprint(FD_IO, "get_io_u failed\n"); |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 1511 | put_io_u(td, io_u); |
Jens Axboe | 002fe73 | 2014-02-11 08:31:13 -0700 | [diff] [blame] | 1512 | return ERR_PTR(ret); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1513 | } |
| 1514 | |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 1515 | void io_u_log_error(struct thread_data *td, struct io_u *io_u) |
| 1516 | { |
Dmitry Monakhov | 8b28bd4 | 2012-09-23 15:46:09 +0400 | [diff] [blame] | 1517 | enum error_type_bit eb = td_error_type(io_u->ddir, io_u->error); |
Jens Axboe | 825f818 | 2010-08-25 10:47:18 +0200 | [diff] [blame] | 1518 | |
Dmitry Monakhov | 8b28bd4 | 2012-09-23 15:46:09 +0400 | [diff] [blame] | 1519 | if (td_non_fatal_error(td, eb, io_u->error) && !td->o.error_dump) |
| 1520 | return; |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 1521 | |
Robert Elliott | 2cbdcdb | 2014-09-16 17:09:48 -0500 | [diff] [blame] | 1522 | log_err("fio: io_u error%s%s: %s: %s offset=%llu, buflen=%lu\n", |
| 1523 | io_u->file ? " on file " : "", |
| 1524 | io_u->file ? io_u->file->file_name : "", |
| 1525 | strerror(io_u->error), |
| 1526 | io_ddir_name(io_u->ddir), |
| 1527 | io_u->offset, io_u->xfer_buflen); |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 1528 | |
| 1529 | if (!td->error) |
| 1530 | td_verror(td, io_u->error, "io_u error"); |
| 1531 | } |
| 1532 | |
Jens Axboe | aba6c95 | 2014-02-13 19:59:56 -0700 | [diff] [blame] | 1533 | static inline int gtod_reduce(struct thread_data *td) |
| 1534 | { |
Jens Axboe | 729fe3a | 2014-02-14 08:46:35 -0700 | [diff] [blame] | 1535 | return td->o.disable_clat && td->o.disable_lat && td->o.disable_slat |
Jens Axboe | b74b820 | 2014-02-13 20:04:02 -0700 | [diff] [blame] | 1536 | && td->o.disable_bw; |
Jens Axboe | aba6c95 | 2014-02-13 19:59:56 -0700 | [diff] [blame] | 1537 | } |
| 1538 | |
Jens Axboe | c8eeb9d | 2011-10-05 14:02:22 +0200 | [diff] [blame] | 1539 | static void account_io_completion(struct thread_data *td, struct io_u *io_u, |
| 1540 | struct io_completion_data *icd, |
| 1541 | const enum fio_ddir idx, unsigned int bytes) |
| 1542 | { |
Jens Axboe | 24d23ca | 2012-11-13 08:31:24 -0700 | [diff] [blame] | 1543 | unsigned long lusec = 0; |
Jens Axboe | c8eeb9d | 2011-10-05 14:02:22 +0200 | [diff] [blame] | 1544 | |
Jens Axboe | aba6c95 | 2014-02-13 19:59:56 -0700 | [diff] [blame] | 1545 | if (!gtod_reduce(td)) |
Jens Axboe | c8eeb9d | 2011-10-05 14:02:22 +0200 | [diff] [blame] | 1546 | lusec = utime_since(&io_u->issue_time, &icd->time); |
| 1547 | |
| 1548 | if (!td->o.disable_lat) { |
| 1549 | unsigned long tusec; |
| 1550 | |
| 1551 | tusec = utime_since(&io_u->start_time, &icd->time); |
Jens Axboe | ccefd5f | 2014-06-30 20:59:03 -0600 | [diff] [blame] | 1552 | add_lat_sample(td, idx, tusec, bytes, io_u->offset); |
Jens Axboe | 1550153 | 2012-10-24 16:37:45 +0200 | [diff] [blame] | 1553 | |
Jens Axboe | d4afedf | 2013-05-22 22:21:29 +0200 | [diff] [blame] | 1554 | if (td->flags & TD_F_PROFILE_OPS) { |
| 1555 | struct prof_io_ops *ops = &td->prof_io_ops; |
| 1556 | |
| 1557 | if (ops->io_u_lat) |
| 1558 | icd->error = ops->io_u_lat(td, tusec); |
| 1559 | } |
| 1560 | |
Jens Axboe | 3e260a4 | 2013-12-09 12:38:53 -0700 | [diff] [blame] | 1561 | if (td->o.max_latency && tusec > td->o.max_latency) |
| 1562 | lat_fatal(td, icd, tusec, td->o.max_latency); |
| 1563 | if (td->o.latency_target && tusec > td->o.latency_target) { |
| 1564 | if (lat_target_failed(td)) |
| 1565 | lat_fatal(td, icd, tusec, td->o.latency_target); |
Jens Axboe | 1550153 | 2012-10-24 16:37:45 +0200 | [diff] [blame] | 1566 | } |
Jens Axboe | c8eeb9d | 2011-10-05 14:02:22 +0200 | [diff] [blame] | 1567 | } |
| 1568 | |
| 1569 | if (!td->o.disable_clat) { |
Jens Axboe | ccefd5f | 2014-06-30 20:59:03 -0600 | [diff] [blame] | 1570 | add_clat_sample(td, idx, lusec, bytes, io_u->offset); |
Jens Axboe | c8eeb9d | 2011-10-05 14:02:22 +0200 | [diff] [blame] | 1571 | io_u_mark_latency(td, lusec); |
| 1572 | } |
| 1573 | |
| 1574 | if (!td->o.disable_bw) |
| 1575 | add_bw_sample(td, idx, bytes, &icd->time); |
| 1576 | |
Jens Axboe | aba6c95 | 2014-02-13 19:59:56 -0700 | [diff] [blame] | 1577 | if (!gtod_reduce(td)) |
| 1578 | add_iops_sample(td, idx, bytes, &icd->time); |
Jens Axboe | c8eeb9d | 2011-10-05 14:02:22 +0200 | [diff] [blame] | 1579 | } |
| 1580 | |
Steven Lang | 1b8dbf2 | 2011-11-09 13:48:01 +0100 | [diff] [blame] | 1581 | static long long usec_for_io(struct thread_data *td, enum fio_ddir ddir) |
| 1582 | { |
Jens Axboe | 1ae83d4 | 2013-01-12 01:44:15 -0700 | [diff] [blame] | 1583 | uint64_t secs, remainder, bps, bytes; |
| 1584 | |
Steven Lang | 1b8dbf2 | 2011-11-09 13:48:01 +0100 | [diff] [blame] | 1585 | bytes = td->this_io_bytes[ddir]; |
| 1586 | bps = td->rate_bps[ddir]; |
| 1587 | secs = bytes / bps; |
| 1588 | remainder = bytes % bps; |
| 1589 | return remainder * 1000000 / bps + secs * 1000000; |
| 1590 | } |
| 1591 | |
Jens Axboe | e69fdf7 | 2014-07-23 16:11:43 +0200 | [diff] [blame] | 1592 | static void io_completed(struct thread_data *td, struct io_u **io_u_ptr, |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1593 | struct io_completion_data *icd) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1594 | { |
Jens Axboe | e69fdf7 | 2014-07-23 16:11:43 +0200 | [diff] [blame] | 1595 | struct io_u *io_u = *io_u_ptr; |
| 1596 | enum fio_ddir ddir = io_u->ddir; |
| 1597 | struct fio_file *f = io_u->file; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1598 | |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 1599 | dprint_io_u(io_u, "io complete"); |
| 1600 | |
Jens Axboe | 2ecc1b5 | 2009-11-04 20:58:09 +0100 | [diff] [blame] | 1601 | td_io_u_lock(td); |
Jens Axboe | 0c6e751 | 2007-02-22 11:19:39 +0100 | [diff] [blame] | 1602 | assert(io_u->flags & IO_U_F_FLIGHT); |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 1603 | io_u->flags &= ~(IO_U_F_FLIGHT | IO_U_F_BUSY_OK); |
Jens Axboe | f940128 | 2014-02-06 12:17:37 -0700 | [diff] [blame] | 1604 | |
| 1605 | /* |
| 1606 | * Mark IO ok to verify |
| 1607 | */ |
| 1608 | if (io_u->ipo) { |
Jens Axboe | 890b665 | 2014-05-06 19:06:51 -0600 | [diff] [blame] | 1609 | /* |
| 1610 | * Remove errored entry from the verification list |
| 1611 | */ |
| 1612 | if (io_u->error) |
| 1613 | unlog_io_piece(td, io_u); |
| 1614 | else { |
| 1615 | io_u->ipo->flags &= ~IP_F_IN_FLIGHT; |
| 1616 | write_barrier(); |
| 1617 | } |
Jens Axboe | f940128 | 2014-02-06 12:17:37 -0700 | [diff] [blame] | 1618 | } |
| 1619 | |
Jens Axboe | 2ecc1b5 | 2009-11-04 20:58:09 +0100 | [diff] [blame] | 1620 | td_io_u_unlock(td); |
Jens Axboe | 0c6e751 | 2007-02-22 11:19:39 +0100 | [diff] [blame] | 1621 | |
Jens Axboe | e69fdf7 | 2014-07-23 16:11:43 +0200 | [diff] [blame] | 1622 | if (ddir_sync(ddir)) { |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 1623 | td->last_was_sync = 1; |
Jens Axboe | 44f2969 | 2010-03-09 20:09:44 +0100 | [diff] [blame] | 1624 | if (f) { |
| 1625 | f->first_write = -1ULL; |
| 1626 | f->last_write = -1ULL; |
| 1627 | } |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 1628 | return; |
| 1629 | } |
| 1630 | |
| 1631 | td->last_was_sync = 0; |
Jens Axboe | e69fdf7 | 2014-07-23 16:11:43 +0200 | [diff] [blame] | 1632 | td->last_ddir = ddir; |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 1633 | |
Jens Axboe | e69fdf7 | 2014-07-23 16:11:43 +0200 | [diff] [blame] | 1634 | if (!io_u->error && ddir_rw(ddir)) { |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1635 | unsigned int bytes = io_u->buflen - io_u->resid; |
Jens Axboe | e69fdf7 | 2014-07-23 16:11:43 +0200 | [diff] [blame] | 1636 | const enum fio_ddir oddir = ddir ^ 1; |
Jens Axboe | b29ee5b | 2008-09-11 10:17:26 +0200 | [diff] [blame] | 1637 | int ret; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1638 | |
Jens Axboe | e69fdf7 | 2014-07-23 16:11:43 +0200 | [diff] [blame] | 1639 | td->io_blocks[ddir]++; |
| 1640 | td->this_io_blocks[ddir]++; |
| 1641 | td->io_bytes[ddir] += bytes; |
webee | ae2fafc | 2012-03-23 13:41:41 +0100 | [diff] [blame] | 1642 | |
| 1643 | if (!(io_u->flags & IO_U_F_VER_LIST)) |
Jens Axboe | e69fdf7 | 2014-07-23 16:11:43 +0200 | [diff] [blame] | 1644 | td->this_io_bytes[ddir] += bytes; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1645 | |
Jens Axboe | e69fdf7 | 2014-07-23 16:11:43 +0200 | [diff] [blame] | 1646 | if (ddir == DDIR_WRITE && f) { |
| 1647 | if (f->first_write == -1ULL || |
| 1648 | io_u->offset < f->first_write) |
| 1649 | f->first_write = io_u->offset; |
| 1650 | if (f->last_write == -1ULL || |
| 1651 | ((io_u->offset + bytes) > f->last_write)) |
| 1652 | f->last_write = io_u->offset + bytes; |
Jens Axboe | 44f2969 | 2010-03-09 20:09:44 +0100 | [diff] [blame] | 1653 | } |
| 1654 | |
Steven Lang | 6b1190f | 2012-02-07 09:42:59 +0100 | [diff] [blame] | 1655 | if (ramp_time_over(td) && (td->runstate == TD_RUNNING || |
| 1656 | td->runstate == TD_VERIFYING)) { |
Jens Axboe | e69fdf7 | 2014-07-23 16:11:43 +0200 | [diff] [blame] | 1657 | account_io_completion(td, io_u, icd, ddir, bytes); |
Jens Axboe | 40e1a6f | 2009-06-11 10:55:39 +0200 | [diff] [blame] | 1658 | |
Jens Axboe | e69fdf7 | 2014-07-23 16:11:43 +0200 | [diff] [blame] | 1659 | if (__should_check_rate(td, ddir)) { |
| 1660 | td->rate_pending_usleep[ddir] = |
| 1661 | (usec_for_io(td, ddir) - |
Radha Ramachandran | ba3e4e0 | 2009-12-09 22:31:44 +0100 | [diff] [blame] | 1662 | utime_since_now(&td->start)); |
Jens Axboe | b23b6a2 | 2009-06-11 22:06:23 +0200 | [diff] [blame] | 1663 | } |
Jens Axboe | e69fdf7 | 2014-07-23 16:11:43 +0200 | [diff] [blame] | 1664 | if (ddir != DDIR_TRIM && |
| 1665 | __should_check_rate(td, oddir)) { |
| 1666 | td->rate_pending_usleep[oddir] = |
| 1667 | (usec_for_io(td, oddir) - |
Radha Ramachandran | ba3e4e0 | 2009-12-09 22:31:44 +0100 | [diff] [blame] | 1668 | utime_since_now(&td->start)); |
Jens Axboe | e69fdf7 | 2014-07-23 16:11:43 +0200 | [diff] [blame] | 1669 | } |
Jens Axboe | 721938a | 2008-09-10 09:46:16 +0200 | [diff] [blame] | 1670 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1671 | |
Jens Axboe | e69fdf7 | 2014-07-23 16:11:43 +0200 | [diff] [blame] | 1672 | icd->bytes_done[ddir] += bytes; |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 1673 | |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 1674 | if (io_u->end_io) { |
Jens Axboe | e69fdf7 | 2014-07-23 16:11:43 +0200 | [diff] [blame] | 1675 | ret = io_u->end_io(td, io_u_ptr); |
| 1676 | io_u = *io_u_ptr; |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 1677 | if (ret && !icd->error) |
| 1678 | icd->error = ret; |
| 1679 | } |
Jens Axboe | ff58fce | 2010-08-25 12:02:08 +0200 | [diff] [blame] | 1680 | } else if (io_u->error) { |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1681 | icd->error = io_u->error; |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 1682 | io_u_log_error(td, io_u); |
| 1683 | } |
Dmitry Monakhov | 8b28bd4 | 2012-09-23 15:46:09 +0400 | [diff] [blame] | 1684 | if (icd->error) { |
Jens Axboe | e69fdf7 | 2014-07-23 16:11:43 +0200 | [diff] [blame] | 1685 | enum error_type_bit eb = td_error_type(ddir, icd->error); |
| 1686 | |
Dmitry Monakhov | 8b28bd4 | 2012-09-23 15:46:09 +0400 | [diff] [blame] | 1687 | if (!td_non_fatal_error(td, eb, icd->error)) |
| 1688 | return; |
Jens Axboe | e69fdf7 | 2014-07-23 16:11:43 +0200 | [diff] [blame] | 1689 | |
Radha Ramachandran | f2bba18 | 2009-06-15 08:40:16 +0200 | [diff] [blame] | 1690 | /* |
| 1691 | * If there is a non_fatal error, then add to the error count |
| 1692 | * and clear all the errors. |
| 1693 | */ |
| 1694 | update_error_count(td, icd->error); |
| 1695 | td_clear_error(td); |
| 1696 | icd->error = 0; |
Jens Axboe | e69fdf7 | 2014-07-23 16:11:43 +0200 | [diff] [blame] | 1697 | if (io_u) |
| 1698 | io_u->error = 0; |
Radha Ramachandran | f2bba18 | 2009-06-15 08:40:16 +0200 | [diff] [blame] | 1699 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1700 | } |
| 1701 | |
Jens Axboe | 9520ebb | 2008-10-16 21:03:27 +0200 | [diff] [blame] | 1702 | static void init_icd(struct thread_data *td, struct io_completion_data *icd, |
| 1703 | int nr) |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 1704 | { |
Shaohua Li | 6eaf09d | 2012-09-14 08:49:43 +0200 | [diff] [blame] | 1705 | int ddir; |
Jens Axboe | aba6c95 | 2014-02-13 19:59:56 -0700 | [diff] [blame] | 1706 | |
| 1707 | if (!gtod_reduce(td)) |
Jens Axboe | 9520ebb | 2008-10-16 21:03:27 +0200 | [diff] [blame] | 1708 | fio_gettime(&icd->time, NULL); |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 1709 | |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 1710 | icd->nr = nr; |
| 1711 | |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 1712 | icd->error = 0; |
Shaohua Li | 6eaf09d | 2012-09-14 08:49:43 +0200 | [diff] [blame] | 1713 | for (ddir = DDIR_READ; ddir < DDIR_RWDIR_CNT; ddir++) |
| 1714 | icd->bytes_done[ddir] = 0; |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 1715 | } |
| 1716 | |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1717 | static void ios_completed(struct thread_data *td, |
| 1718 | struct io_completion_data *icd) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1719 | { |
| 1720 | struct io_u *io_u; |
| 1721 | int i; |
| 1722 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1723 | for (i = 0; i < icd->nr; i++) { |
| 1724 | io_u = td->io_ops->event(td, i); |
| 1725 | |
Jens Axboe | e69fdf7 | 2014-07-23 16:11:43 +0200 | [diff] [blame] | 1726 | io_completed(td, &io_u, icd); |
Jens Axboe | e8462bd | 2009-07-06 12:59:04 +0200 | [diff] [blame] | 1727 | |
Jens Axboe | e69fdf7 | 2014-07-23 16:11:43 +0200 | [diff] [blame] | 1728 | if (io_u) |
Jens Axboe | e8462bd | 2009-07-06 12:59:04 +0200 | [diff] [blame] | 1729 | put_io_u(td, io_u); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1730 | } |
| 1731 | } |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1732 | |
Jens Axboe | e7e6cfb | 2007-02-20 10:58:34 +0100 | [diff] [blame] | 1733 | /* |
| 1734 | * Complete a single io_u for the sync engines. |
| 1735 | */ |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 1736 | int io_u_sync_complete(struct thread_data *td, struct io_u *io_u, |
Jens Axboe | 100f49f | 2013-01-23 10:15:57 -0700 | [diff] [blame] | 1737 | uint64_t *bytes) |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1738 | { |
| 1739 | struct io_completion_data icd; |
| 1740 | |
Jens Axboe | 9520ebb | 2008-10-16 21:03:27 +0200 | [diff] [blame] | 1741 | init_icd(td, &icd, 1); |
Jens Axboe | e69fdf7 | 2014-07-23 16:11:43 +0200 | [diff] [blame] | 1742 | io_completed(td, &io_u, &icd); |
Jens Axboe | e8462bd | 2009-07-06 12:59:04 +0200 | [diff] [blame] | 1743 | |
Jens Axboe | e69fdf7 | 2014-07-23 16:11:43 +0200 | [diff] [blame] | 1744 | if (io_u) |
Jens Axboe | e8462bd | 2009-07-06 12:59:04 +0200 | [diff] [blame] | 1745 | put_io_u(td, io_u); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1746 | |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 1747 | if (icd.error) { |
| 1748 | td_verror(td, icd.error, "io_u_sync_complete"); |
| 1749 | return -1; |
| 1750 | } |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1751 | |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 1752 | if (bytes) { |
Shaohua Li | 6eaf09d | 2012-09-14 08:49:43 +0200 | [diff] [blame] | 1753 | int ddir; |
| 1754 | |
| 1755 | for (ddir = DDIR_READ; ddir < DDIR_RWDIR_CNT; ddir++) |
| 1756 | bytes[ddir] += icd.bytes_done[ddir]; |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 1757 | } |
| 1758 | |
| 1759 | return 0; |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1760 | } |
| 1761 | |
Jens Axboe | e7e6cfb | 2007-02-20 10:58:34 +0100 | [diff] [blame] | 1762 | /* |
| 1763 | * Called to complete min_events number of io for the async engines. |
| 1764 | */ |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 1765 | int io_u_queued_complete(struct thread_data *td, int min_evts, |
Jens Axboe | 100f49f | 2013-01-23 10:15:57 -0700 | [diff] [blame] | 1766 | uint64_t *bytes) |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1767 | { |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1768 | struct io_completion_data icd; |
Jens Axboe | 00de55e | 2007-02-20 10:45:57 +0100 | [diff] [blame] | 1769 | struct timespec *tvp = NULL; |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1770 | int ret; |
Davide Libenzi | 4d06a33 | 2007-03-22 07:43:50 +0100 | [diff] [blame] | 1771 | struct timespec ts = { .tv_sec = 0, .tv_nsec = 0, }; |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1772 | |
Jens Axboe | 4950421 | 2008-06-05 09:03:30 +0200 | [diff] [blame] | 1773 | dprint(FD_IO, "io_u_queued_completed: min=%d\n", min_evts); |
Jens Axboe | b271fe6 | 2008-02-04 10:49:41 +0100 | [diff] [blame] | 1774 | |
Jens Axboe | 4950421 | 2008-06-05 09:03:30 +0200 | [diff] [blame] | 1775 | if (!min_evts) |
Jens Axboe | 00de55e | 2007-02-20 10:45:57 +0100 | [diff] [blame] | 1776 | tvp = &ts; |
Robert Elliott | 0507483 | 2014-09-04 13:51:05 -0600 | [diff] [blame] | 1777 | else if (min_evts > td->cur_depth) |
| 1778 | min_evts = td->cur_depth; |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1779 | |
Jens Axboe | 4950421 | 2008-06-05 09:03:30 +0200 | [diff] [blame] | 1780 | ret = td_io_getevents(td, min_evts, td->o.iodepth_batch_complete, tvp); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1781 | if (ret < 0) { |
Jens Axboe | e1161c3 | 2007-02-22 19:36:48 +0100 | [diff] [blame] | 1782 | td_verror(td, -ret, "td_io_getevents"); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1783 | return ret; |
| 1784 | } else if (!ret) |
| 1785 | return ret; |
| 1786 | |
Jens Axboe | 9520ebb | 2008-10-16 21:03:27 +0200 | [diff] [blame] | 1787 | init_icd(td, &icd, ret); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1788 | ios_completed(td, &icd); |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 1789 | if (icd.error) { |
| 1790 | td_verror(td, icd.error, "io_u_queued_complete"); |
| 1791 | return -1; |
| 1792 | } |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1793 | |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 1794 | if (bytes) { |
Shaohua Li | 6eaf09d | 2012-09-14 08:49:43 +0200 | [diff] [blame] | 1795 | int ddir; |
| 1796 | |
| 1797 | for (ddir = DDIR_READ; ddir < DDIR_RWDIR_CNT; ddir++) |
| 1798 | bytes[ddir] += icd.bytes_done[ddir]; |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 1799 | } |
| 1800 | |
| 1801 | return 0; |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1802 | } |
Jens Axboe | 7e77dd0 | 2007-02-20 10:57:34 +0100 | [diff] [blame] | 1803 | |
| 1804 | /* |
| 1805 | * Call when io_u is really queued, to update the submission latency. |
| 1806 | */ |
| 1807 | void io_u_queued(struct thread_data *td, struct io_u *io_u) |
| 1808 | { |
Jens Axboe | 9520ebb | 2008-10-16 21:03:27 +0200 | [diff] [blame] | 1809 | if (!td->o.disable_slat) { |
| 1810 | unsigned long slat_time; |
Jens Axboe | 7e77dd0 | 2007-02-20 10:57:34 +0100 | [diff] [blame] | 1811 | |
Jens Axboe | 9520ebb | 2008-10-16 21:03:27 +0200 | [diff] [blame] | 1812 | slat_time = utime_since(&io_u->start_time, &io_u->issue_time); |
Jens Axboe | ccefd5f | 2014-06-30 20:59:03 -0600 | [diff] [blame] | 1813 | add_slat_sample(td, io_u->ddir, slat_time, io_u->xfer_buflen, |
| 1814 | io_u->offset); |
Jens Axboe | 9520ebb | 2008-10-16 21:03:27 +0200 | [diff] [blame] | 1815 | } |
Jens Axboe | 7e77dd0 | 2007-02-20 10:57:34 +0100 | [diff] [blame] | 1816 | } |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 1817 | |
Jens Axboe | e66dac2 | 2014-09-22 10:02:07 -0600 | [diff] [blame] | 1818 | /* |
| 1819 | * See if we should reuse the last seed, if dedupe is enabled |
| 1820 | */ |
| 1821 | static struct frand_state *get_buf_state(struct thread_data *td) |
| 1822 | { |
| 1823 | unsigned int v; |
| 1824 | unsigned long r; |
| 1825 | |
| 1826 | if (!td->o.dedupe_percentage) |
| 1827 | return &td->buf_state; |
Jens Axboe | 64d3bab | 2014-09-22 14:20:05 -0600 | [diff] [blame] | 1828 | else if (td->o.dedupe_percentage == 100) |
| 1829 | return &td->buf_state_prev; |
Jens Axboe | e66dac2 | 2014-09-22 10:02:07 -0600 | [diff] [blame] | 1830 | |
| 1831 | r = __rand(&td->dedupe_state); |
| 1832 | v = 1 + (int) (100.0 * (r / (FRAND_MAX + 1.0))); |
| 1833 | |
| 1834 | if (v <= td->o.dedupe_percentage) |
| 1835 | return &td->buf_state_prev; |
| 1836 | |
| 1837 | return &td->buf_state; |
| 1838 | } |
| 1839 | |
| 1840 | static void save_buf_state(struct thread_data *td, struct frand_state *rs) |
| 1841 | { |
| 1842 | if (rs == &td->buf_state) |
| 1843 | frand_copy(&td->buf_state_prev, rs); |
| 1844 | } |
| 1845 | |
Jens Axboe | cc86c39 | 2013-05-03 15:12:33 +0200 | [diff] [blame] | 1846 | void fill_io_buffer(struct thread_data *td, void *buf, unsigned int min_write, |
| 1847 | unsigned int max_bs) |
Jens Axboe | 5973caf | 2008-05-21 19:52:35 +0200 | [diff] [blame] | 1848 | { |
Jens Axboe | ce35b1e | 2014-01-14 15:35:58 -0700 | [diff] [blame] | 1849 | if (td->o.buffer_pattern_bytes) |
| 1850 | fill_buffer_pattern(td, buf, max_bs); |
| 1851 | else if (!td->o.zero_buffers) { |
Jens Axboe | 9c42684 | 2012-03-02 21:02:12 +0100 | [diff] [blame] | 1852 | unsigned int perc = td->o.compress_percentage; |
Jens Axboe | e66dac2 | 2014-09-22 10:02:07 -0600 | [diff] [blame] | 1853 | struct frand_state *rs; |
Jens Axboe | 8e0aa16 | 2014-09-26 15:04:58 -0600 | [diff] [blame] | 1854 | unsigned int left = max_bs; |
Jens Axboe | e66dac2 | 2014-09-22 10:02:07 -0600 | [diff] [blame] | 1855 | |
Jens Axboe | 8e0aa16 | 2014-09-26 15:04:58 -0600 | [diff] [blame] | 1856 | do { |
| 1857 | rs = get_buf_state(td); |
Jens Axboe | 9c42684 | 2012-03-02 21:02:12 +0100 | [diff] [blame] | 1858 | |
Jens Axboe | 8e0aa16 | 2014-09-26 15:04:58 -0600 | [diff] [blame] | 1859 | min_write = min(min_write, left); |
Jens Axboe | f97a43a | 2012-03-09 19:06:24 +0100 | [diff] [blame] | 1860 | |
Jens Axboe | 8e0aa16 | 2014-09-26 15:04:58 -0600 | [diff] [blame] | 1861 | if (perc) { |
| 1862 | unsigned int seg = min_write; |
Jens Axboe | cc86c39 | 2013-05-03 15:12:33 +0200 | [diff] [blame] | 1863 | |
Jens Axboe | 8e0aa16 | 2014-09-26 15:04:58 -0600 | [diff] [blame] | 1864 | seg = min(min_write, td->o.compress_chunk); |
| 1865 | if (!seg) |
| 1866 | seg = min_write; |
| 1867 | |
| 1868 | fill_random_buf_percentage(rs, buf, perc, seg, |
| 1869 | min_write); |
| 1870 | } else |
| 1871 | fill_random_buf(rs, buf, min_write); |
| 1872 | |
| 1873 | buf += min_write; |
| 1874 | left -= min_write; |
Jens Axboe | e66dac2 | 2014-09-22 10:02:07 -0600 | [diff] [blame] | 1875 | save_buf_state(td, rs); |
Jens Axboe | 8e0aa16 | 2014-09-26 15:04:58 -0600 | [diff] [blame] | 1876 | } while (left); |
Jens Axboe | 9c42684 | 2012-03-02 21:02:12 +0100 | [diff] [blame] | 1877 | } else |
Jens Axboe | cc86c39 | 2013-05-03 15:12:33 +0200 | [diff] [blame] | 1878 | memset(buf, 0, max_bs); |
| 1879 | } |
| 1880 | |
| 1881 | /* |
| 1882 | * "randomly" fill the buffer contents |
| 1883 | */ |
| 1884 | void io_u_fill_buffer(struct thread_data *td, struct io_u *io_u, |
| 1885 | unsigned int min_write, unsigned int max_bs) |
| 1886 | { |
| 1887 | io_u->buf_filled_len = 0; |
| 1888 | fill_io_buffer(td, io_u->buf, min_write, max_bs); |
Jens Axboe | 5973caf | 2008-05-21 19:52:35 +0200 | [diff] [blame] | 1889 | } |