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 | 1ae83d4 | 2013-01-12 01:44:15 -0700 | [diff] [blame] | 93 | uint64_t rmax; |
Jens Axboe | 15b8772 | 2011-10-12 09:42:33 +0200 | [diff] [blame] | 94 | |
Jens Axboe | 8055e41 | 2012-11-26 08:43:47 +0100 | [diff] [blame] | 95 | rmax = td->o.use_os_rand ? OS_RAND_MAX : FRAND_MAX; |
| 96 | |
| 97 | if (td->o.use_os_rand) { |
| 98 | rmax = OS_RAND_MAX; |
| 99 | r = os_random_long(&td->random_state); |
| 100 | } else { |
| 101 | rmax = FRAND_MAX; |
| 102 | r = __rand(&td->__random_state); |
| 103 | } |
| 104 | |
Jens Axboe | 4b91ee8 | 2013-02-25 10:18:33 +0100 | [diff] [blame] | 105 | dprint(FD_RANDOM, "off rand %llu\n", (unsigned long long) r); |
Jens Axboe | 8055e41 | 2012-11-26 08:43:47 +0100 | [diff] [blame] | 106 | |
Peter Oberparleiter | 80e88a1 | 2014-02-28 09:09:13 -0800 | [diff] [blame] | 107 | *b = lastb * (r / ((uint64_t) rmax + 1.0)); |
Jens Axboe | 51ede0b | 2012-11-22 13:50:29 +0100 | [diff] [blame] | 108 | } else { |
Jens Axboe | 8055e41 | 2012-11-26 08:43:47 +0100 | [diff] [blame] | 109 | uint64_t off = 0; |
| 110 | |
Jens Axboe | 7477673 | 2013-01-11 14:03:25 +0100 | [diff] [blame] | 111 | if (lfsr_next(&f->lfsr, &off, lastb)) |
Jens Axboe | 8055e41 | 2012-11-26 08:43:47 +0100 | [diff] [blame] | 112 | return 1; |
| 113 | |
| 114 | *b = off; |
Jens Axboe | 51ede0b | 2012-11-22 13:50:29 +0100 | [diff] [blame] | 115 | } |
Jens Axboe | 2615cc4 | 2011-03-28 09:35:09 +0200 | [diff] [blame] | 116 | |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 117 | /* |
Jens Axboe | 51ede0b | 2012-11-22 13:50:29 +0100 | [diff] [blame] | 118 | * if we are not maintaining a random map, we are done. |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 119 | */ |
Jens Axboe | 51ede0b | 2012-11-22 13:50:29 +0100 | [diff] [blame] | 120 | if (!file_randommap(td, f)) |
| 121 | goto ret; |
Jens Axboe | 43c63a7 | 2007-05-21 13:23:30 +0200 | [diff] [blame] | 122 | |
| 123 | /* |
Jens Axboe | 51ede0b | 2012-11-22 13:50:29 +0100 | [diff] [blame] | 124 | * calculate map offset and check if it's free |
Jens Axboe | 43c63a7 | 2007-05-21 13:23:30 +0200 | [diff] [blame] | 125 | */ |
Jens Axboe | 51ede0b | 2012-11-22 13:50:29 +0100 | [diff] [blame] | 126 | if (random_map_free(f, *b)) |
| 127 | goto ret; |
| 128 | |
Jens Axboe | 4b91ee8 | 2013-02-25 10:18:33 +0100 | [diff] [blame] | 129 | dprint(FD_RANDOM, "get_next_rand_offset: offset %llu busy\n", |
| 130 | (unsigned long long) *b); |
Jens Axboe | 51ede0b | 2012-11-22 13:50:29 +0100 | [diff] [blame] | 131 | |
Jens Axboe | 7ebd796 | 2012-11-28 21:24:46 +0100 | [diff] [blame] | 132 | *b = axmap_next_free(f->io_axmap, *b); |
Jens Axboe | 51ede0b | 2012-11-22 13:50:29 +0100 | [diff] [blame] | 133 | if (*b == (uint64_t) -1ULL) |
| 134 | return 1; |
Jens Axboe | 0ce8b11 | 2011-01-27 22:25:29 +0100 | [diff] [blame] | 135 | ret: |
| 136 | return 0; |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 137 | } |
| 138 | |
Jens Axboe | 925fee3 | 2012-11-06 13:50:32 +0100 | [diff] [blame] | 139 | static int __get_next_rand_offset_zipf(struct thread_data *td, |
| 140 | struct fio_file *f, enum fio_ddir ddir, |
Jens Axboe | 1ae83d4 | 2013-01-12 01:44:15 -0700 | [diff] [blame] | 141 | uint64_t *b) |
Jens Axboe | e25839d | 2012-11-06 10:49:42 +0100 | [diff] [blame] | 142 | { |
Jens Axboe | 9c6f631 | 2012-11-07 09:15:45 +0100 | [diff] [blame] | 143 | *b = zipf_next(&f->zipf); |
Jens Axboe | e25839d | 2012-11-06 10:49:42 +0100 | [diff] [blame] | 144 | return 0; |
| 145 | } |
| 146 | |
Jens Axboe | 925fee3 | 2012-11-06 13:50:32 +0100 | [diff] [blame] | 147 | static int __get_next_rand_offset_pareto(struct thread_data *td, |
| 148 | struct fio_file *f, enum fio_ddir ddir, |
Jens Axboe | 1ae83d4 | 2013-01-12 01:44:15 -0700 | [diff] [blame] | 149 | uint64_t *b) |
Jens Axboe | 925fee3 | 2012-11-06 13:50:32 +0100 | [diff] [blame] | 150 | { |
Jens Axboe | 9c6f631 | 2012-11-07 09:15:45 +0100 | [diff] [blame] | 151 | *b = pareto_next(&f->zipf); |
Jens Axboe | 925fee3 | 2012-11-06 13:50:32 +0100 | [diff] [blame] | 152 | return 0; |
| 153 | } |
| 154 | |
Jens Axboe | 1ae83d4 | 2013-01-12 01:44:15 -0700 | [diff] [blame] | 155 | static int flist_cmp(void *data, struct flist_head *a, struct flist_head *b) |
| 156 | { |
| 157 | struct rand_off *r1 = flist_entry(a, struct rand_off, list); |
| 158 | struct rand_off *r2 = flist_entry(b, struct rand_off, list); |
| 159 | |
| 160 | return r1->off - r2->off; |
| 161 | } |
| 162 | |
| 163 | static int get_off_from_method(struct thread_data *td, struct fio_file *f, |
| 164 | enum fio_ddir ddir, uint64_t *b) |
Jens Axboe | e25839d | 2012-11-06 10:49:42 +0100 | [diff] [blame] | 165 | { |
| 166 | if (td->o.random_distribution == FIO_RAND_DIST_RANDOM) |
| 167 | return __get_next_rand_offset(td, f, ddir, b); |
| 168 | else if (td->o.random_distribution == FIO_RAND_DIST_ZIPF) |
| 169 | return __get_next_rand_offset_zipf(td, f, ddir, b); |
Jens Axboe | 925fee3 | 2012-11-06 13:50:32 +0100 | [diff] [blame] | 170 | else if (td->o.random_distribution == FIO_RAND_DIST_PARETO) |
| 171 | return __get_next_rand_offset_pareto(td, f, ddir, b); |
Jens Axboe | e25839d | 2012-11-06 10:49:42 +0100 | [diff] [blame] | 172 | |
| 173 | log_err("fio: unknown random distribution: %d\n", td->o.random_distribution); |
| 174 | return 1; |
| 175 | } |
| 176 | |
Jens Axboe | bcd5abf | 2013-01-23 09:27:25 -0700 | [diff] [blame] | 177 | /* |
| 178 | * Sort the reads for a verify phase in batches of verifysort_nr, if |
| 179 | * specified. |
| 180 | */ |
| 181 | static inline int should_sort_io(struct thread_data *td) |
| 182 | { |
| 183 | if (!td->o.verifysort_nr || !td->o.do_verify) |
| 184 | return 0; |
| 185 | if (!td_random(td)) |
| 186 | return 0; |
| 187 | if (td->runstate != TD_VERIFYING) |
| 188 | return 0; |
| 189 | if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE) |
| 190 | return 0; |
| 191 | |
| 192 | return 1; |
| 193 | } |
| 194 | |
Jens Axboe | d947227 | 2013-07-25 10:20:45 -0600 | [diff] [blame] | 195 | 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] | 196 | { |
| 197 | unsigned int v; |
| 198 | unsigned long r; |
| 199 | |
Jens Axboe | d947227 | 2013-07-25 10:20:45 -0600 | [diff] [blame] | 200 | if (td->o.perc_rand[ddir] == 100) |
Jens Axboe | 211c9b8 | 2013-04-26 08:56:17 -0600 | [diff] [blame] | 201 | return 1; |
| 202 | |
| 203 | if (td->o.use_os_rand) { |
Jens Axboe | d947227 | 2013-07-25 10:20:45 -0600 | [diff] [blame] | 204 | r = os_random_long(&td->seq_rand_state[ddir]); |
Jens Axboe | 211c9b8 | 2013-04-26 08:56:17 -0600 | [diff] [blame] | 205 | v = 1 + (int) (100.0 * (r / (OS_RAND_MAX + 1.0))); |
| 206 | } else { |
Jens Axboe | d947227 | 2013-07-25 10:20:45 -0600 | [diff] [blame] | 207 | r = __rand(&td->__seq_rand_state[ddir]); |
Jens Axboe | 211c9b8 | 2013-04-26 08:56:17 -0600 | [diff] [blame] | 208 | v = 1 + (int) (100.0 * (r / (FRAND_MAX + 1.0))); |
| 209 | } |
| 210 | |
Jens Axboe | d947227 | 2013-07-25 10:20:45 -0600 | [diff] [blame] | 211 | return v <= td->o.perc_rand[ddir]; |
Jens Axboe | 211c9b8 | 2013-04-26 08:56:17 -0600 | [diff] [blame] | 212 | } |
| 213 | |
Jens Axboe | 1ae83d4 | 2013-01-12 01:44:15 -0700 | [diff] [blame] | 214 | static int get_next_rand_offset(struct thread_data *td, struct fio_file *f, |
| 215 | enum fio_ddir ddir, uint64_t *b) |
| 216 | { |
| 217 | struct rand_off *r; |
| 218 | int i, ret = 1; |
| 219 | |
Jens Axboe | bcd5abf | 2013-01-23 09:27:25 -0700 | [diff] [blame] | 220 | if (!should_sort_io(td)) |
Jens Axboe | 1ae83d4 | 2013-01-12 01:44:15 -0700 | [diff] [blame] | 221 | return get_off_from_method(td, f, ddir, b); |
| 222 | |
| 223 | if (!flist_empty(&td->next_rand_list)) { |
| 224 | struct rand_off *r; |
| 225 | fetch: |
| 226 | r = flist_entry(td->next_rand_list.next, struct rand_off, list); |
| 227 | flist_del(&r->list); |
| 228 | *b = r->off; |
| 229 | free(r); |
| 230 | return 0; |
| 231 | } |
| 232 | |
| 233 | for (i = 0; i < td->o.verifysort_nr; i++) { |
| 234 | r = malloc(sizeof(*r)); |
| 235 | |
| 236 | ret = get_off_from_method(td, f, ddir, &r->off); |
| 237 | if (ret) { |
| 238 | free(r); |
| 239 | break; |
| 240 | } |
| 241 | |
| 242 | flist_add(&r->list, &td->next_rand_list); |
| 243 | } |
| 244 | |
| 245 | if (ret && !i) |
| 246 | return ret; |
| 247 | |
| 248 | assert(!flist_empty(&td->next_rand_list)); |
| 249 | flist_sort(NULL, &td->next_rand_list, flist_cmp); |
| 250 | goto fetch; |
| 251 | } |
| 252 | |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 253 | 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] | 254 | enum fio_ddir ddir, uint64_t *b) |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 255 | { |
Daniel Ehrenberg | c04e466 | 2012-03-16 18:54:15 +0100 | [diff] [blame] | 256 | if (!get_next_rand_offset(td, f, ddir, b)) |
| 257 | return 0; |
| 258 | |
| 259 | if (td->o.time_based) { |
Jens Axboe | 33c4881 | 2013-01-21 09:46:06 -0700 | [diff] [blame] | 260 | fio_file_reset(td, f); |
Daniel Ehrenberg | c04e466 | 2012-03-16 18:54:15 +0100 | [diff] [blame] | 261 | if (!get_next_rand_offset(td, f, ddir, b)) |
| 262 | return 0; |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 263 | } |
| 264 | |
Daniel Ehrenberg | c04e466 | 2012-03-16 18:54:15 +0100 | [diff] [blame] | 265 | dprint(FD_IO, "%s: rand offset failed, last=%llu, size=%llu\n", |
Jens Axboe | 4b91ee8 | 2013-02-25 10:18:33 +0100 | [diff] [blame] | 266 | f->file_name, (unsigned long long) f->last_pos, |
| 267 | (unsigned long long) f->real_file_size); |
Daniel Ehrenberg | c04e466 | 2012-03-16 18:54:15 +0100 | [diff] [blame] | 268 | return 1; |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 269 | } |
| 270 | |
Jens Axboe | 37cf9e3 | 2012-03-17 12:54:30 +0100 | [diff] [blame] | 271 | 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] | 272 | enum fio_ddir ddir, uint64_t *offset) |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 273 | { |
Jens Axboe | ff58fce | 2010-08-25 12:02:08 +0200 | [diff] [blame] | 274 | assert(ddir_rw(ddir)); |
| 275 | |
Dan Ehrenberg | ce95d65 | 2012-08-16 08:58:21 +0200 | [diff] [blame] | 276 | if (f->last_pos >= f->io_size + get_start_offset(td) && td->o.time_based) |
Daniel Ehrenberg | c04e466 | 2012-03-16 18:54:15 +0100 | [diff] [blame] | 277 | f->last_pos = f->last_pos - f->io_size; |
| 278 | |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 279 | if (f->last_pos < f->real_file_size) { |
Jens Axboe | 1ae83d4 | 2013-01-12 01:44:15 -0700 | [diff] [blame] | 280 | uint64_t pos; |
Jens Axboe | 059b080 | 2011-08-25 09:09:37 +0200 | [diff] [blame] | 281 | |
Jens Axboe | a66da7a | 2011-08-31 13:14:12 -0600 | [diff] [blame] | 282 | if (f->last_pos == f->file_offset && td->o.ddir_seq_add < 0) |
| 283 | f->last_pos = f->real_file_size; |
| 284 | |
| 285 | pos = f->last_pos - f->file_offset; |
Jens Axboe | 059b080 | 2011-08-25 09:09:37 +0200 | [diff] [blame] | 286 | if (pos) |
| 287 | pos += td->o.ddir_seq_add; |
| 288 | |
Jens Axboe | 37cf9e3 | 2012-03-17 12:54:30 +0100 | [diff] [blame] | 289 | *offset = pos; |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 290 | return 0; |
| 291 | } |
| 292 | |
| 293 | return 1; |
| 294 | } |
| 295 | |
| 296 | 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] | 297 | enum fio_ddir ddir, int rw_seq, |
| 298 | unsigned int *is_random) |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 299 | { |
| 300 | struct fio_file *f = io_u->file; |
Jens Axboe | 1ae83d4 | 2013-01-12 01:44:15 -0700 | [diff] [blame] | 301 | uint64_t b, offset; |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 302 | int ret; |
| 303 | |
Jens Axboe | ff58fce | 2010-08-25 12:02:08 +0200 | [diff] [blame] | 304 | assert(ddir_rw(ddir)); |
| 305 | |
Jens Axboe | 37cf9e3 | 2012-03-17 12:54:30 +0100 | [diff] [blame] | 306 | b = offset = -1ULL; |
| 307 | |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 308 | if (rw_seq) { |
Jens Axboe | 211c9b8 | 2013-04-26 08:56:17 -0600 | [diff] [blame] | 309 | if (td_random(td)) { |
Jens Axboe | 6aca9b3 | 2013-07-25 12:45:26 -0600 | [diff] [blame] | 310 | if (should_do_random(td, ddir)) { |
Jens Axboe | 211c9b8 | 2013-04-26 08:56:17 -0600 | [diff] [blame] | 311 | ret = get_next_rand_block(td, f, ddir, &b); |
Jens Axboe | 6aca9b3 | 2013-07-25 12:45:26 -0600 | [diff] [blame] | 312 | *is_random = 1; |
| 313 | } else { |
| 314 | *is_random = 0; |
Jens Axboe | 211c9b8 | 2013-04-26 08:56:17 -0600 | [diff] [blame] | 315 | io_u->flags |= IO_U_F_BUSY_OK; |
| 316 | ret = get_next_seq_offset(td, f, ddir, &offset); |
| 317 | if (ret) |
| 318 | ret = get_next_rand_block(td, f, ddir, &b); |
| 319 | } |
Jens Axboe | 6aca9b3 | 2013-07-25 12:45:26 -0600 | [diff] [blame] | 320 | } else { |
| 321 | *is_random = 0; |
Jens Axboe | 37cf9e3 | 2012-03-17 12:54:30 +0100 | [diff] [blame] | 322 | ret = get_next_seq_offset(td, f, ddir, &offset); |
Jens Axboe | 6aca9b3 | 2013-07-25 12:45:26 -0600 | [diff] [blame] | 323 | } |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 324 | } else { |
| 325 | io_u->flags |= IO_U_F_BUSY_OK; |
Jens Axboe | 6aca9b3 | 2013-07-25 12:45:26 -0600 | [diff] [blame] | 326 | *is_random = 0; |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 327 | |
| 328 | if (td->o.rw_seq == RW_SEQ_SEQ) { |
Jens Axboe | 37cf9e3 | 2012-03-17 12:54:30 +0100 | [diff] [blame] | 329 | ret = get_next_seq_offset(td, f, ddir, &offset); |
Jens Axboe | 6aca9b3 | 2013-07-25 12:45:26 -0600 | [diff] [blame] | 330 | if (ret) { |
Jens Axboe | 37cf9e3 | 2012-03-17 12:54:30 +0100 | [diff] [blame] | 331 | ret = get_next_rand_block(td, f, ddir, &b); |
Jens Axboe | 6aca9b3 | 2013-07-25 12:45:26 -0600 | [diff] [blame] | 332 | *is_random = 0; |
| 333 | } |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 334 | } else if (td->o.rw_seq == RW_SEQ_IDENT) { |
| 335 | if (f->last_start != -1ULL) |
Jens Axboe | 37cf9e3 | 2012-03-17 12:54:30 +0100 | [diff] [blame] | 336 | offset = f->last_start - f->file_offset; |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 337 | else |
Jens Axboe | 37cf9e3 | 2012-03-17 12:54:30 +0100 | [diff] [blame] | 338 | offset = 0; |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 339 | ret = 0; |
| 340 | } else { |
| 341 | log_err("fio: unknown rw_seq=%d\n", td->o.rw_seq); |
| 342 | ret = 1; |
| 343 | } |
| 344 | } |
Bruce Cran | 6d68b99 | 2013-01-13 17:21:58 +0000 | [diff] [blame] | 345 | |
Jens Axboe | 37cf9e3 | 2012-03-17 12:54:30 +0100 | [diff] [blame] | 346 | if (!ret) { |
| 347 | if (offset != -1ULL) |
| 348 | io_u->offset = offset; |
| 349 | else if (b != -1ULL) |
| 350 | io_u->offset = b * td->o.ba[ddir]; |
| 351 | else { |
Jens Axboe | 4e0a8fa | 2013-04-15 11:40:57 +0200 | [diff] [blame] | 352 | 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] | 353 | ret = 1; |
| 354 | } |
| 355 | } |
| 356 | |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 357 | return ret; |
| 358 | } |
| 359 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 360 | /* |
| 361 | * For random io, generate a random new block and see if it's used. Repeat |
| 362 | * until we find a free one. For sequential io, just return the end of |
| 363 | * the last io issued. |
| 364 | */ |
Jens Axboe | 6aca9b3 | 2013-07-25 12:45:26 -0600 | [diff] [blame] | 365 | static int __get_next_offset(struct thread_data *td, struct io_u *io_u, |
| 366 | unsigned int *is_random) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 367 | { |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 368 | struct fio_file *f = io_u->file; |
Jens Axboe | 4ba6613 | 2008-02-05 10:05:50 +0100 | [diff] [blame] | 369 | enum fio_ddir ddir = io_u->ddir; |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 370 | int rw_seq_hit = 0; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 371 | |
Jens Axboe | ff58fce | 2010-08-25 12:02:08 +0200 | [diff] [blame] | 372 | assert(ddir_rw(ddir)); |
| 373 | |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 374 | if (td->o.ddir_seq_nr && !--td->ddir_seq_nr) { |
| 375 | rw_seq_hit = 1; |
Jens Axboe | 5736c10 | 2010-07-20 12:03:25 -0600 | [diff] [blame] | 376 | td->ddir_seq_nr = td->o.ddir_seq_nr; |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 377 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 378 | |
Jens Axboe | 6aca9b3 | 2013-07-25 12:45:26 -0600 | [diff] [blame] | 379 | 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] | 380 | return 1; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 381 | |
Jens Axboe | 009bd84 | 2008-05-15 10:19:46 +0200 | [diff] [blame] | 382 | if (io_u->offset >= f->io_size) { |
| 383 | dprint(FD_IO, "get_next_offset: offset %llu >= io_size %llu\n", |
Jens Axboe | 4b91ee8 | 2013-02-25 10:18:33 +0100 | [diff] [blame] | 384 | (unsigned long long) io_u->offset, |
| 385 | (unsigned long long) f->io_size); |
Jens Axboe | 009bd84 | 2008-05-15 10:19:46 +0200 | [diff] [blame] | 386 | return 1; |
| 387 | } |
| 388 | |
| 389 | io_u->offset += f->file_offset; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 390 | if (io_u->offset >= f->real_file_size) { |
| 391 | dprint(FD_IO, "get_next_offset: offset %llu >= size %llu\n", |
Jens Axboe | 4b91ee8 | 2013-02-25 10:18:33 +0100 | [diff] [blame] | 392 | (unsigned long long) io_u->offset, |
| 393 | (unsigned long long) f->real_file_size); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 394 | return 1; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 395 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 396 | |
| 397 | return 0; |
| 398 | } |
| 399 | |
Jens Axboe | 6aca9b3 | 2013-07-25 12:45:26 -0600 | [diff] [blame] | 400 | static int get_next_offset(struct thread_data *td, struct io_u *io_u, |
| 401 | unsigned int *is_random) |
Jens Axboe | 15dc193 | 2010-03-05 10:59:06 +0100 | [diff] [blame] | 402 | { |
Jens Axboe | d72be54 | 2012-11-30 19:37:46 +0100 | [diff] [blame] | 403 | if (td->flags & TD_F_PROFILE_OPS) { |
| 404 | struct prof_io_ops *ops = &td->prof_io_ops; |
Jens Axboe | 7eb3657 | 2010-03-08 13:58:49 +0100 | [diff] [blame] | 405 | |
Jens Axboe | d72be54 | 2012-11-30 19:37:46 +0100 | [diff] [blame] | 406 | if (ops->fill_io_u_off) |
Jens Axboe | 6aca9b3 | 2013-07-25 12:45:26 -0600 | [diff] [blame] | 407 | return ops->fill_io_u_off(td, io_u, is_random); |
Jens Axboe | d72be54 | 2012-11-30 19:37:46 +0100 | [diff] [blame] | 408 | } |
Jens Axboe | 15dc193 | 2010-03-05 10:59:06 +0100 | [diff] [blame] | 409 | |
Jens Axboe | 6aca9b3 | 2013-07-25 12:45:26 -0600 | [diff] [blame] | 410 | return __get_next_offset(td, io_u, is_random); |
Jens Axboe | 15dc193 | 2010-03-05 10:59:06 +0100 | [diff] [blame] | 411 | } |
| 412 | |
Jens Axboe | 7994412 | 2011-05-24 11:26:16 +0200 | [diff] [blame] | 413 | static inline int io_u_fits(struct thread_data *td, struct io_u *io_u, |
| 414 | unsigned int buflen) |
| 415 | { |
| 416 | struct fio_file *f = io_u->file; |
| 417 | |
Dan Ehrenberg | ce95d65 | 2012-08-16 08:58:21 +0200 | [diff] [blame] | 418 | return io_u->offset + buflen <= f->io_size + get_start_offset(td); |
Jens Axboe | 7994412 | 2011-05-24 11:26:16 +0200 | [diff] [blame] | 419 | } |
| 420 | |
Jens Axboe | 6aca9b3 | 2013-07-25 12:45:26 -0600 | [diff] [blame] | 421 | static unsigned int __get_next_buflen(struct thread_data *td, struct io_u *io_u, |
| 422 | unsigned int is_random) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 423 | { |
Jens Axboe | 6aca9b3 | 2013-07-25 12:45:26 -0600 | [diff] [blame] | 424 | int ddir = io_u->ddir; |
Jens Axboe | 24d23ca | 2012-11-13 08:31:24 -0700 | [diff] [blame] | 425 | unsigned int buflen = 0; |
Jens Axboe | f3059de | 2008-06-11 15:37:32 +0200 | [diff] [blame] | 426 | unsigned int minbs, maxbs; |
Jens Axboe | 1294c3e | 2011-05-11 08:15:18 +0200 | [diff] [blame] | 427 | unsigned long r, rand_max; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 428 | |
Jens Axboe | 6aca9b3 | 2013-07-25 12:45:26 -0600 | [diff] [blame] | 429 | assert(ddir_rw(io_u->ddir)); |
| 430 | |
| 431 | if (td->o.bs_is_seq_rand) |
| 432 | ddir = is_random ? DDIR_WRITE: DDIR_READ; |
| 433 | else |
| 434 | ddir = io_u->ddir; |
Jens Axboe | ff58fce | 2010-08-25 12:02:08 +0200 | [diff] [blame] | 435 | |
Jens Axboe | f3059de | 2008-06-11 15:37:32 +0200 | [diff] [blame] | 436 | minbs = td->o.min_bs[ddir]; |
| 437 | maxbs = td->o.max_bs[ddir]; |
| 438 | |
Jens Axboe | 7994412 | 2011-05-24 11:26:16 +0200 | [diff] [blame] | 439 | if (minbs == maxbs) |
| 440 | return minbs; |
| 441 | |
Jens Axboe | 52c5802 | 2012-02-06 21:58:56 +0100 | [diff] [blame] | 442 | /* |
| 443 | * If we can't satisfy the min block size from here, then fail |
| 444 | */ |
| 445 | if (!io_u_fits(td, io_u, minbs)) |
| 446 | return 0; |
| 447 | |
Jens Axboe | 4c07ad8 | 2011-03-28 09:51:09 +0200 | [diff] [blame] | 448 | if (td->o.use_os_rand) |
| 449 | rand_max = OS_RAND_MAX; |
| 450 | else |
| 451 | rand_max = FRAND_MAX; |
| 452 | |
Jens Axboe | 7994412 | 2011-05-24 11:26:16 +0200 | [diff] [blame] | 453 | do { |
Jens Axboe | 4c07ad8 | 2011-03-28 09:51:09 +0200 | [diff] [blame] | 454 | if (td->o.use_os_rand) |
| 455 | r = os_random_long(&td->bsrange_state); |
| 456 | else |
| 457 | r = __rand(&td->__bsrange_state); |
| 458 | |
Jens Axboe | 720e84a | 2009-04-21 08:29:55 +0200 | [diff] [blame] | 459 | if (!td->o.bssplit_nr[ddir]) { |
Jens Axboe | f3059de | 2008-06-11 15:37:32 +0200 | [diff] [blame] | 460 | buflen = 1 + (unsigned int) ((double) maxbs * |
Jens Axboe | 4c07ad8 | 2011-03-28 09:51:09 +0200 | [diff] [blame] | 461 | (r / (rand_max + 1.0))); |
Jens Axboe | f3059de | 2008-06-11 15:37:32 +0200 | [diff] [blame] | 462 | if (buflen < minbs) |
| 463 | buflen = minbs; |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 464 | } else { |
Jens Axboe | 564ca97 | 2007-12-14 12:21:19 +0100 | [diff] [blame] | 465 | long perc = 0; |
| 466 | unsigned int i; |
| 467 | |
Jens Axboe | 720e84a | 2009-04-21 08:29:55 +0200 | [diff] [blame] | 468 | for (i = 0; i < td->o.bssplit_nr[ddir]; i++) { |
| 469 | struct bssplit *bsp = &td->o.bssplit[ddir][i]; |
Jens Axboe | 564ca97 | 2007-12-14 12:21:19 +0100 | [diff] [blame] | 470 | |
| 471 | buflen = bsp->bs; |
| 472 | perc += bsp->perc; |
Jens Axboe | 7994412 | 2011-05-24 11:26:16 +0200 | [diff] [blame] | 473 | if ((r <= ((rand_max / 100L) * perc)) && |
| 474 | io_u_fits(td, io_u, buflen)) |
Jens Axboe | 564ca97 | 2007-12-14 12:21:19 +0100 | [diff] [blame] | 475 | break; |
| 476 | } |
| 477 | } |
Jens Axboe | 7994412 | 2011-05-24 11:26:16 +0200 | [diff] [blame] | 478 | |
Josef Bacik | a9f70b1 | 2013-07-08 20:32:50 -0400 | [diff] [blame] | 479 | if (td->o.do_verify && td->o.verify != VERIFY_NONE) |
| 480 | buflen = (buflen + td->o.verify_interval - 1) & |
| 481 | ~(td->o.verify_interval - 1); |
| 482 | |
Jens Axboe | f3059de | 2008-06-11 15:37:32 +0200 | [diff] [blame] | 483 | if (!td->o.bs_unaligned && is_power_of_2(minbs)) |
| 484 | buflen = (buflen + minbs - 1) & ~(minbs - 1); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 485 | |
Jens Axboe | 7994412 | 2011-05-24 11:26:16 +0200 | [diff] [blame] | 486 | } while (!io_u_fits(td, io_u, buflen)); |
Jens Axboe | 6a5e688 | 2007-07-26 10:47:51 +0200 | [diff] [blame] | 487 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 488 | return buflen; |
| 489 | } |
| 490 | |
Jens Axboe | 6aca9b3 | 2013-07-25 12:45:26 -0600 | [diff] [blame] | 491 | static unsigned int get_next_buflen(struct thread_data *td, struct io_u *io_u, |
| 492 | unsigned int is_random) |
Jens Axboe | 15dc193 | 2010-03-05 10:59:06 +0100 | [diff] [blame] | 493 | { |
Jens Axboe | d72be54 | 2012-11-30 19:37:46 +0100 | [diff] [blame] | 494 | if (td->flags & TD_F_PROFILE_OPS) { |
| 495 | struct prof_io_ops *ops = &td->prof_io_ops; |
Jens Axboe | 7eb3657 | 2010-03-08 13:58:49 +0100 | [diff] [blame] | 496 | |
Jens Axboe | d72be54 | 2012-11-30 19:37:46 +0100 | [diff] [blame] | 497 | if (ops->fill_io_u_size) |
Jens Axboe | 6aca9b3 | 2013-07-25 12:45:26 -0600 | [diff] [blame] | 498 | return ops->fill_io_u_size(td, io_u, is_random); |
Jens Axboe | d72be54 | 2012-11-30 19:37:46 +0100 | [diff] [blame] | 499 | } |
Jens Axboe | 15dc193 | 2010-03-05 10:59:06 +0100 | [diff] [blame] | 500 | |
Jens Axboe | 6aca9b3 | 2013-07-25 12:45:26 -0600 | [diff] [blame] | 501 | return __get_next_buflen(td, io_u, is_random); |
Jens Axboe | 15dc193 | 2010-03-05 10:59:06 +0100 | [diff] [blame] | 502 | } |
| 503 | |
Jens Axboe | afe24a5 | 2007-03-16 20:27:27 +0100 | [diff] [blame] | 504 | static void set_rwmix_bytes(struct thread_data *td) |
| 505 | { |
Jens Axboe | afe24a5 | 2007-03-16 20:27:27 +0100 | [diff] [blame] | 506 | unsigned int diff; |
| 507 | |
| 508 | /* |
| 509 | * we do time or byte based switch. this is needed because |
| 510 | * buffered writes may issue a lot quicker than they complete, |
| 511 | * whereas reads do not. |
| 512 | */ |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 513 | diff = td->o.rwmix[td->rwmix_ddir ^ 1]; |
Jens Axboe | 04c540d | 2008-05-28 10:35:26 +0200 | [diff] [blame] | 514 | td->rwmix_issues = (td->io_issues[td->rwmix_ddir] * diff) / 100; |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 515 | } |
| 516 | |
| 517 | static inline enum fio_ddir get_rand_ddir(struct thread_data *td) |
| 518 | { |
| 519 | unsigned int v; |
Jens Axboe | 1294c3e | 2011-05-11 08:15:18 +0200 | [diff] [blame] | 520 | unsigned long r; |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 521 | |
Jens Axboe | 4c07ad8 | 2011-03-28 09:51:09 +0200 | [diff] [blame] | 522 | if (td->o.use_os_rand) { |
| 523 | r = os_random_long(&td->rwmix_state); |
| 524 | v = 1 + (int) (100.0 * (r / (OS_RAND_MAX + 1.0))); |
| 525 | } else { |
| 526 | r = __rand(&td->__rwmix_state); |
| 527 | v = 1 + (int) (100.0 * (r / (FRAND_MAX + 1.0))); |
| 528 | } |
| 529 | |
Jens Axboe | 04c540d | 2008-05-28 10:35:26 +0200 | [diff] [blame] | 530 | if (v <= td->o.rwmix[DDIR_READ]) |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 531 | return DDIR_READ; |
| 532 | |
| 533 | return DDIR_WRITE; |
Jens Axboe | afe24a5 | 2007-03-16 20:27:27 +0100 | [diff] [blame] | 534 | } |
| 535 | |
Jens Axboe | 002e718 | 2013-05-17 12:39:53 +0200 | [diff] [blame] | 536 | void io_u_quiesce(struct thread_data *td) |
| 537 | { |
| 538 | /* |
| 539 | * We are going to sleep, ensure that we flush anything pending as |
| 540 | * not to skew our latency numbers. |
| 541 | * |
| 542 | * Changed to only monitor 'in flight' requests here instead of the |
| 543 | * td->cur_depth, b/c td->cur_depth does not accurately represent |
| 544 | * io's that have been actually submitted to an async engine, |
| 545 | * and cur_depth is meaningless for sync engines. |
| 546 | */ |
| 547 | while (td->io_u_in_flight) { |
| 548 | int fio_unused ret; |
| 549 | |
| 550 | ret = io_u_queued_complete(td, 1, NULL); |
| 551 | } |
| 552 | } |
| 553 | |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 554 | static enum fio_ddir rate_ddir(struct thread_data *td, enum fio_ddir ddir) |
| 555 | { |
| 556 | enum fio_ddir odir = ddir ^ 1; |
| 557 | struct timeval t; |
| 558 | long usec; |
| 559 | |
Jens Axboe | ff58fce | 2010-08-25 12:02:08 +0200 | [diff] [blame] | 560 | assert(ddir_rw(ddir)); |
| 561 | |
Jens Axboe | 315fcfe | 2013-02-08 19:05:25 +0100 | [diff] [blame] | 562 | if (td->rate_pending_usleep[ddir] <= 0) |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 563 | return ddir; |
| 564 | |
| 565 | /* |
| 566 | * We have too much pending sleep in this direction. See if we |
| 567 | * should switch. |
| 568 | */ |
Jens Axboe | 315fcfe | 2013-02-08 19:05:25 +0100 | [diff] [blame] | 569 | if (td_rw(td) && td->o.rwmix[odir]) { |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 570 | /* |
| 571 | * Other direction does not have too much pending, switch |
| 572 | */ |
| 573 | if (td->rate_pending_usleep[odir] < 100000) |
| 574 | return odir; |
| 575 | |
| 576 | /* |
| 577 | * Both directions have pending sleep. Sleep the minimum time |
| 578 | * and deduct from both. |
| 579 | */ |
| 580 | if (td->rate_pending_usleep[ddir] <= |
| 581 | td->rate_pending_usleep[odir]) { |
| 582 | usec = td->rate_pending_usleep[ddir]; |
| 583 | } else { |
| 584 | usec = td->rate_pending_usleep[odir]; |
| 585 | ddir = odir; |
| 586 | } |
| 587 | } else |
| 588 | usec = td->rate_pending_usleep[ddir]; |
| 589 | |
Jens Axboe | 002e718 | 2013-05-17 12:39:53 +0200 | [diff] [blame] | 590 | io_u_quiesce(td); |
Jens Axboe | 78c1eda | 2011-08-30 15:34:14 -0600 | [diff] [blame] | 591 | |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 592 | fio_gettime(&t, NULL); |
| 593 | usec_sleep(td, usec); |
| 594 | usec = utime_since_now(&t); |
| 595 | |
| 596 | td->rate_pending_usleep[ddir] -= usec; |
| 597 | |
| 598 | odir = ddir ^ 1; |
| 599 | if (td_rw(td) && __should_check_rate(td, odir)) |
| 600 | td->rate_pending_usleep[odir] -= usec; |
Jens Axboe | 0b9d69e | 2009-09-11 22:29:54 +0200 | [diff] [blame] | 601 | |
Shaohua Li | 6eaf09d | 2012-09-14 08:49:43 +0200 | [diff] [blame] | 602 | if (ddir_trim(ddir)) |
| 603 | return ddir; |
Jens Axboe | e0224c6 | 2013-02-07 19:55:24 +0100 | [diff] [blame] | 604 | |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 605 | return ddir; |
| 606 | } |
| 607 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 608 | /* |
| 609 | * Return the data direction for the next io_u. If the job is a |
| 610 | * mixed read/write workload, check the rwmix cycle and switch if |
| 611 | * necessary. |
| 612 | */ |
Jens Axboe | 1e97cce | 2006-12-05 11:44:16 +0100 | [diff] [blame] | 613 | static enum fio_ddir get_rw_ddir(struct thread_data *td) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 614 | { |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 615 | enum fio_ddir ddir; |
| 616 | |
Jens Axboe | 5f9099e | 2009-06-16 22:40:26 +0200 | [diff] [blame] | 617 | /* |
| 618 | * see if it's time to fsync |
| 619 | */ |
| 620 | if (td->o.fsync_blocks && |
| 621 | !(td->io_issues[DDIR_WRITE] % td->o.fsync_blocks) && |
| 622 | td->io_issues[DDIR_WRITE] && should_fsync(td)) |
| 623 | return DDIR_SYNC; |
| 624 | |
| 625 | /* |
| 626 | * see if it's time to fdatasync |
| 627 | */ |
| 628 | if (td->o.fdatasync_blocks && |
| 629 | !(td->io_issues[DDIR_WRITE] % td->o.fdatasync_blocks) && |
| 630 | td->io_issues[DDIR_WRITE] && should_fsync(td)) |
| 631 | return DDIR_DATASYNC; |
| 632 | |
Jens Axboe | 44f2969 | 2010-03-09 20:09:44 +0100 | [diff] [blame] | 633 | /* |
| 634 | * see if it's time to sync_file_range |
| 635 | */ |
| 636 | if (td->sync_file_range_nr && |
| 637 | !(td->io_issues[DDIR_WRITE] % td->sync_file_range_nr) && |
| 638 | td->io_issues[DDIR_WRITE] && should_fsync(td)) |
| 639 | return DDIR_SYNC_FILE_RANGE; |
| 640 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 641 | if (td_rw(td)) { |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 642 | /* |
| 643 | * Check if it's time to seed a new data direction. |
| 644 | */ |
Jens Axboe | e492866 | 2008-04-07 09:19:46 +0200 | [diff] [blame] | 645 | if (td->io_issues[td->rwmix_ddir] >= td->rwmix_issues) { |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 646 | /* |
| 647 | * Put a top limit on how many bytes we do for |
| 648 | * one data direction, to avoid overflowing the |
| 649 | * ranges too much |
| 650 | */ |
| 651 | ddir = get_rand_ddir(td); |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 652 | |
| 653 | if (ddir != td->rwmix_ddir) |
| 654 | set_rwmix_bytes(td); |
| 655 | |
| 656 | td->rwmix_ddir = ddir; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 657 | } |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 658 | ddir = td->rwmix_ddir; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 659 | } else if (td_read(td)) |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 660 | ddir = DDIR_READ; |
Shaohua Li | 6eaf09d | 2012-09-14 08:49:43 +0200 | [diff] [blame] | 661 | else if (td_write(td)) |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 662 | ddir = DDIR_WRITE; |
Shaohua Li | 6eaf09d | 2012-09-14 08:49:43 +0200 | [diff] [blame] | 663 | else |
| 664 | ddir = DDIR_TRIM; |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 665 | |
| 666 | td->rwmix_ddir = rate_ddir(td, ddir); |
| 667 | return td->rwmix_ddir; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 668 | } |
| 669 | |
Jens Axboe | 1ef2b6b | 2010-10-08 15:07:01 +0200 | [diff] [blame] | 670 | static void set_rw_ddir(struct thread_data *td, struct io_u *io_u) |
| 671 | { |
Jens Axboe | bcd5abf | 2013-01-23 09:27:25 -0700 | [diff] [blame] | 672 | io_u->ddir = io_u->acct_ddir = get_rw_ddir(td); |
Jens Axboe | 1ef2b6b | 2010-10-08 15:07:01 +0200 | [diff] [blame] | 673 | |
| 674 | if (io_u->ddir == DDIR_WRITE && (td->io_ops->flags & FIO_BARRIER) && |
| 675 | td->o.barrier_blocks && |
| 676 | !(td->io_issues[DDIR_WRITE] % td->o.barrier_blocks) && |
| 677 | td->io_issues[DDIR_WRITE]) |
| 678 | io_u->flags |= IO_U_F_BARRIER; |
| 679 | } |
| 680 | |
Jens Axboe | e8462bd | 2009-07-06 12:59:04 +0200 | [diff] [blame] | 681 | void put_file_log(struct thread_data *td, struct fio_file *f) |
Jens Axboe | 60f2c65 | 2008-05-16 12:31:36 +0200 | [diff] [blame] | 682 | { |
| 683 | int ret = put_file(td, f); |
| 684 | |
| 685 | if (ret) |
| 686 | td_verror(td, ret, "file close"); |
| 687 | } |
| 688 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 689 | void put_io_u(struct thread_data *td, struct io_u *io_u) |
| 690 | { |
Jens Axboe | e8462bd | 2009-07-06 12:59:04 +0200 | [diff] [blame] | 691 | td_io_u_lock(td); |
| 692 | |
Steven Lang | d7ee2a7 | 2011-10-26 09:46:50 +0200 | [diff] [blame] | 693 | if (io_u->file && !(io_u->flags & IO_U_F_FREE_DEF)) |
Jens Axboe | 60f2c65 | 2008-05-16 12:31:36 +0200 | [diff] [blame] | 694 | put_file_log(td, io_u->file); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 695 | io_u->file = NULL; |
Steven Lang | d7ee2a7 | 2011-10-26 09:46:50 +0200 | [diff] [blame] | 696 | io_u->flags &= ~IO_U_F_FREE_DEF; |
| 697 | io_u->flags |= IO_U_F_FREE; |
| 698 | |
Radha Ramachandran | 0c41214 | 2009-11-03 21:45:31 +0100 | [diff] [blame] | 699 | if (io_u->flags & IO_U_F_IN_CUR_DEPTH) |
| 700 | td->cur_depth--; |
Jens Axboe | 2ae0b20 | 2013-05-28 14:16:55 +0200 | [diff] [blame] | 701 | io_u_qpush(&td->io_u_freelist, io_u); |
Jens Axboe | e8462bd | 2009-07-06 12:59:04 +0200 | [diff] [blame] | 702 | td_io_u_unlock(td); |
| 703 | td_io_u_free_notify(td); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 704 | } |
| 705 | |
Radha Ramachandran | f2bba18 | 2009-06-15 08:40:16 +0200 | [diff] [blame] | 706 | void clear_io_u(struct thread_data *td, struct io_u *io_u) |
| 707 | { |
| 708 | io_u->flags &= ~IO_U_F_FLIGHT; |
| 709 | put_io_u(td, io_u); |
| 710 | } |
| 711 | |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 712 | void requeue_io_u(struct thread_data *td, struct io_u **io_u) |
| 713 | { |
| 714 | struct io_u *__io_u = *io_u; |
Jens Axboe | bcd5abf | 2013-01-23 09:27:25 -0700 | [diff] [blame] | 715 | enum fio_ddir ddir = acct_ddir(__io_u); |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 716 | |
Jens Axboe | 465221b | 2008-05-30 22:07:49 +0200 | [diff] [blame] | 717 | dprint(FD_IO, "requeue %p\n", __io_u); |
| 718 | |
Jens Axboe | e8462bd | 2009-07-06 12:59:04 +0200 | [diff] [blame] | 719 | td_io_u_lock(td); |
| 720 | |
Jens Axboe | 4d2e0f4 | 2007-02-24 13:31:57 +0100 | [diff] [blame] | 721 | __io_u->flags |= IO_U_F_FREE; |
Jens Axboe | bcd5abf | 2013-01-23 09:27:25 -0700 | [diff] [blame] | 722 | if ((__io_u->flags & IO_U_F_FLIGHT) && ddir_rw(ddir)) |
| 723 | td->io_issues[ddir]--; |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 724 | |
Jens Axboe | 4d2e0f4 | 2007-02-24 13:31:57 +0100 | [diff] [blame] | 725 | __io_u->flags &= ~IO_U_F_FLIGHT; |
Radha Ramachandran | 0c41214 | 2009-11-03 21:45:31 +0100 | [diff] [blame] | 726 | if (__io_u->flags & IO_U_F_IN_CUR_DEPTH) |
| 727 | td->cur_depth--; |
Jens Axboe | 2ae0b20 | 2013-05-28 14:16:55 +0200 | [diff] [blame] | 728 | |
| 729 | io_u_rpush(&td->io_u_requeues, __io_u); |
Jens Axboe | e8462bd | 2009-07-06 12:59:04 +0200 | [diff] [blame] | 730 | td_io_u_unlock(td); |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 731 | *io_u = NULL; |
| 732 | } |
| 733 | |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 734 | 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] | 735 | { |
Jens Axboe | 6aca9b3 | 2013-07-25 12:45:26 -0600 | [diff] [blame] | 736 | unsigned int is_random; |
| 737 | |
Jens Axboe | b4c5e1a | 2007-10-25 18:44:45 +0200 | [diff] [blame] | 738 | if (td->io_ops->flags & FIO_NOIO) |
| 739 | goto out; |
| 740 | |
Jens Axboe | 1ef2b6b | 2010-10-08 15:07:01 +0200 | [diff] [blame] | 741 | set_rw_ddir(td, io_u); |
Jens Axboe | a00735e | 2006-11-03 08:58:08 +0100 | [diff] [blame] | 742 | |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 743 | /* |
Jens Axboe | ff58fce | 2010-08-25 12:02:08 +0200 | [diff] [blame] | 744 | * fsync() or fdatasync() or trim etc, we are done |
Jens Axboe | 5f9099e | 2009-06-16 22:40:26 +0200 | [diff] [blame] | 745 | */ |
Jens Axboe | ff58fce | 2010-08-25 12:02:08 +0200 | [diff] [blame] | 746 | if (!ddir_rw(io_u->ddir)) |
Jens Axboe | 5f9099e | 2009-06-16 22:40:26 +0200 | [diff] [blame] | 747 | goto out; |
| 748 | |
| 749 | /* |
Jens Axboe | 48f5abd | 2007-07-20 13:25:04 +0200 | [diff] [blame] | 750 | * See if it's time to switch to a new zone |
| 751 | */ |
Jens Axboe | 13af05a | 2012-02-11 09:04:02 +0100 | [diff] [blame] | 752 | if (td->zone_bytes >= td->o.zone_size && td->o.zone_skip) { |
Jens Axboe | 48f5abd | 2007-07-20 13:25:04 +0200 | [diff] [blame] | 753 | td->zone_bytes = 0; |
Steven Noonan | ed33585 | 2012-01-31 13:58:00 +0100 | [diff] [blame] | 754 | io_u->file->file_offset += td->o.zone_range + td->o.zone_skip; |
| 755 | io_u->file->last_pos = io_u->file->file_offset; |
Jens Axboe | 48f5abd | 2007-07-20 13:25:04 +0200 | [diff] [blame] | 756 | td->io_skip_bytes += td->o.zone_skip; |
| 757 | } |
| 758 | |
| 759 | /* |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 760 | * No log, let the seq/rand engine retrieve the next buflen and |
| 761 | * position. |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 762 | */ |
Jens Axboe | 6aca9b3 | 2013-07-25 12:45:26 -0600 | [diff] [blame] | 763 | if (get_next_offset(td, io_u, &is_random)) { |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 764 | dprint(FD_IO, "io_u %p, failed getting offset\n", io_u); |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 765 | return 1; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 766 | } |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 767 | |
Jens Axboe | 6aca9b3 | 2013-07-25 12:45:26 -0600 | [diff] [blame] | 768 | io_u->buflen = get_next_buflen(td, io_u, is_random); |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 769 | if (!io_u->buflen) { |
| 770 | dprint(FD_IO, "io_u %p, failed getting buflen\n", io_u); |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 771 | return 1; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 772 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 773 | |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 774 | if (io_u->offset + io_u->buflen > io_u->file->real_file_size) { |
| 775 | dprint(FD_IO, "io_u %p, offset too large\n", io_u); |
Jens Axboe | 4b91ee8 | 2013-02-25 10:18:33 +0100 | [diff] [blame] | 776 | dprint(FD_IO, " off=%llu/%lu > %llu\n", |
| 777 | (unsigned long long) io_u->offset, io_u->buflen, |
| 778 | (unsigned long long) io_u->file->real_file_size); |
Jens Axboe | 6a5e688 | 2007-07-26 10:47:51 +0200 | [diff] [blame] | 779 | return 1; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 780 | } |
Jens Axboe | 6a5e688 | 2007-07-26 10:47:51 +0200 | [diff] [blame] | 781 | |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 782 | /* |
| 783 | * mark entry before potentially trimming io_u |
| 784 | */ |
Jens Axboe | 303032a | 2008-03-26 10:11:10 +0100 | [diff] [blame] | 785 | if (td_random(td) && file_randommap(td, io_u->file)) |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 786 | mark_random_map(td, io_u); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 787 | |
Jens Axboe | c38e946 | 2007-03-27 08:48:48 +0200 | [diff] [blame] | 788 | out: |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 789 | dprint_io_u(io_u, "fill_io_u"); |
Jens Axboe | d9d91e3 | 2008-01-31 13:25:42 +0100 | [diff] [blame] | 790 | td->zone_bytes += io_u->buflen; |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 791 | return 0; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 792 | } |
| 793 | |
Jens Axboe | 838bc70 | 2008-05-22 13:08:23 +0200 | [diff] [blame] | 794 | static void __io_u_mark_map(unsigned int *map, unsigned int nr) |
| 795 | { |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 796 | int idx = 0; |
Jens Axboe | 838bc70 | 2008-05-22 13:08:23 +0200 | [diff] [blame] | 797 | |
| 798 | switch (nr) { |
| 799 | default: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 800 | idx = 6; |
Jens Axboe | 838bc70 | 2008-05-22 13:08:23 +0200 | [diff] [blame] | 801 | break; |
| 802 | case 33 ... 64: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 803 | idx = 5; |
Jens Axboe | 838bc70 | 2008-05-22 13:08:23 +0200 | [diff] [blame] | 804 | break; |
| 805 | case 17 ... 32: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 806 | idx = 4; |
Jens Axboe | 838bc70 | 2008-05-22 13:08:23 +0200 | [diff] [blame] | 807 | break; |
| 808 | case 9 ... 16: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 809 | idx = 3; |
Jens Axboe | 838bc70 | 2008-05-22 13:08:23 +0200 | [diff] [blame] | 810 | break; |
| 811 | case 5 ... 8: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 812 | idx = 2; |
Jens Axboe | 838bc70 | 2008-05-22 13:08:23 +0200 | [diff] [blame] | 813 | break; |
| 814 | case 1 ... 4: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 815 | idx = 1; |
Jens Axboe | 838bc70 | 2008-05-22 13:08:23 +0200 | [diff] [blame] | 816 | case 0: |
| 817 | break; |
| 818 | } |
| 819 | |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 820 | map[idx]++; |
Jens Axboe | 838bc70 | 2008-05-22 13:08:23 +0200 | [diff] [blame] | 821 | } |
| 822 | |
| 823 | void io_u_mark_submit(struct thread_data *td, unsigned int nr) |
| 824 | { |
| 825 | __io_u_mark_map(td->ts.io_u_submit, nr); |
| 826 | td->ts.total_submit++; |
| 827 | } |
| 828 | |
| 829 | void io_u_mark_complete(struct thread_data *td, unsigned int nr) |
| 830 | { |
| 831 | __io_u_mark_map(td->ts.io_u_complete, nr); |
| 832 | td->ts.total_complete++; |
| 833 | } |
| 834 | |
Jens Axboe | d800575 | 2008-05-15 09:49:09 +0200 | [diff] [blame] | 835 | void io_u_mark_depth(struct thread_data *td, unsigned int nr) |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 836 | { |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 837 | int idx = 0; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 838 | |
| 839 | switch (td->cur_depth) { |
| 840 | default: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 841 | idx = 6; |
Jens Axboe | a783e61 | 2007-06-19 09:50:28 +0200 | [diff] [blame] | 842 | break; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 843 | case 32 ... 63: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 844 | idx = 5; |
Jens Axboe | a783e61 | 2007-06-19 09:50:28 +0200 | [diff] [blame] | 845 | break; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 846 | case 16 ... 31: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 847 | idx = 4; |
Jens Axboe | a783e61 | 2007-06-19 09:50:28 +0200 | [diff] [blame] | 848 | break; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 849 | case 8 ... 15: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 850 | idx = 3; |
Jens Axboe | a783e61 | 2007-06-19 09:50:28 +0200 | [diff] [blame] | 851 | break; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 852 | case 4 ... 7: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 853 | idx = 2; |
Jens Axboe | a783e61 | 2007-06-19 09:50:28 +0200 | [diff] [blame] | 854 | break; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 855 | case 2 ... 3: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 856 | idx = 1; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 857 | case 1: |
| 858 | break; |
| 859 | } |
| 860 | |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 861 | td->ts.io_u_map[idx] += nr; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 862 | } |
| 863 | |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 864 | static void io_u_mark_lat_usec(struct thread_data *td, unsigned long usec) |
| 865 | { |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 866 | int idx = 0; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 867 | |
| 868 | assert(usec < 1000); |
| 869 | |
| 870 | switch (usec) { |
| 871 | case 750 ... 999: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 872 | idx = 9; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 873 | break; |
| 874 | case 500 ... 749: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 875 | idx = 8; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 876 | break; |
| 877 | case 250 ... 499: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 878 | idx = 7; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 879 | break; |
| 880 | case 100 ... 249: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 881 | idx = 6; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 882 | break; |
| 883 | case 50 ... 99: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 884 | idx = 5; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 885 | break; |
| 886 | case 20 ... 49: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 887 | idx = 4; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 888 | break; |
| 889 | case 10 ... 19: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 890 | idx = 3; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 891 | break; |
| 892 | case 4 ... 9: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 893 | idx = 2; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 894 | break; |
| 895 | case 2 ... 3: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 896 | idx = 1; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 897 | case 0 ... 1: |
| 898 | break; |
| 899 | } |
| 900 | |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 901 | assert(idx < FIO_IO_U_LAT_U_NR); |
| 902 | td->ts.io_u_lat_u[idx]++; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 903 | } |
| 904 | |
| 905 | 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] | 906 | { |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 907 | int idx = 0; |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 908 | |
| 909 | switch (msec) { |
| 910 | default: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 911 | idx = 11; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 912 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 913 | case 1000 ... 1999: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 914 | idx = 10; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 915 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 916 | case 750 ... 999: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 917 | idx = 9; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 918 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 919 | case 500 ... 749: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 920 | idx = 8; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 921 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 922 | case 250 ... 499: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 923 | idx = 7; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 924 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 925 | case 100 ... 249: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 926 | idx = 6; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 927 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 928 | case 50 ... 99: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 929 | idx = 5; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 930 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 931 | case 20 ... 49: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 932 | idx = 4; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 933 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 934 | case 10 ... 19: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 935 | idx = 3; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 936 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 937 | case 4 ... 9: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 938 | idx = 2; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 939 | break; |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 940 | case 2 ... 3: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 941 | idx = 1; |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 942 | case 0 ... 1: |
| 943 | break; |
| 944 | } |
| 945 | |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 946 | assert(idx < FIO_IO_U_LAT_M_NR); |
| 947 | td->ts.io_u_lat_m[idx]++; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 948 | } |
| 949 | |
| 950 | static void io_u_mark_latency(struct thread_data *td, unsigned long usec) |
| 951 | { |
| 952 | if (usec < 1000) |
| 953 | io_u_mark_lat_usec(td, usec); |
| 954 | else |
| 955 | io_u_mark_lat_msec(td, usec / 1000); |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 956 | } |
| 957 | |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 958 | /* |
| 959 | * Get next file to service by choosing one at random |
| 960 | */ |
Jens Axboe | 2cc5293 | 2009-06-09 14:14:20 +0200 | [diff] [blame] | 961 | static struct fio_file *get_next_file_rand(struct thread_data *td, |
| 962 | enum fio_file_flags goodf, |
Jens Axboe | d6aed79 | 2009-06-03 08:41:15 +0200 | [diff] [blame] | 963 | enum fio_file_flags badf) |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 964 | { |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 965 | struct fio_file *f; |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 966 | int fno; |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 967 | |
| 968 | do { |
Jens Axboe | 87b1067 | 2009-03-04 09:39:47 +0100 | [diff] [blame] | 969 | int opened = 0; |
Jens Axboe | 1294c3e | 2011-05-11 08:15:18 +0200 | [diff] [blame] | 970 | unsigned long r; |
Jens Axboe | 7c83c08 | 2007-03-01 10:04:15 +0100 | [diff] [blame] | 971 | |
Jens Axboe | 4c07ad8 | 2011-03-28 09:51:09 +0200 | [diff] [blame] | 972 | if (td->o.use_os_rand) { |
| 973 | r = os_random_long(&td->next_file_state); |
| 974 | fno = (unsigned int) ((double) td->o.nr_files |
| 975 | * (r / (OS_RAND_MAX + 1.0))); |
| 976 | } else { |
| 977 | r = __rand(&td->__next_file_state); |
| 978 | fno = (unsigned int) ((double) td->o.nr_files |
| 979 | * (r / (FRAND_MAX + 1.0))); |
| 980 | } |
| 981 | |
Jens Axboe | 126d65c | 2008-03-01 18:04:31 +0100 | [diff] [blame] | 982 | f = td->files[fno]; |
Jens Axboe | d6aed79 | 2009-06-03 08:41:15 +0200 | [diff] [blame] | 983 | if (fio_file_done(f)) |
Jens Axboe | 059e63c | 2007-03-27 20:34:47 +0200 | [diff] [blame] | 984 | continue; |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 985 | |
Jens Axboe | d6aed79 | 2009-06-03 08:41:15 +0200 | [diff] [blame] | 986 | if (!fio_file_open(f)) { |
Jens Axboe | 87b1067 | 2009-03-04 09:39:47 +0100 | [diff] [blame] | 987 | int err; |
| 988 | |
Jens Axboe | 002fe73 | 2014-02-11 08:31:13 -0700 | [diff] [blame] | 989 | if (td->nr_open_files >= td->o.open_files) |
| 990 | return ERR_PTR(-EBUSY); |
| 991 | |
Jens Axboe | 87b1067 | 2009-03-04 09:39:47 +0100 | [diff] [blame] | 992 | err = td_io_open_file(td, f); |
| 993 | if (err) |
| 994 | continue; |
| 995 | opened = 1; |
| 996 | } |
| 997 | |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 998 | if ((!goodf || (f->flags & goodf)) && !(f->flags & badf)) { |
| 999 | dprint(FD_FILE, "get_next_file_rand: %p\n", f); |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 1000 | return f; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 1001 | } |
Jens Axboe | 87b1067 | 2009-03-04 09:39:47 +0100 | [diff] [blame] | 1002 | if (opened) |
| 1003 | td_io_close_file(td, f); |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 1004 | } while (1); |
| 1005 | } |
| 1006 | |
| 1007 | /* |
| 1008 | * Get next file to service by doing round robin between all available ones |
| 1009 | */ |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 1010 | static struct fio_file *get_next_file_rr(struct thread_data *td, int goodf, |
| 1011 | int badf) |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 1012 | { |
| 1013 | unsigned int old_next_file = td->next_file; |
| 1014 | struct fio_file *f; |
| 1015 | |
| 1016 | do { |
Jens Axboe | 87b1067 | 2009-03-04 09:39:47 +0100 | [diff] [blame] | 1017 | int opened = 0; |
| 1018 | |
Jens Axboe | 126d65c | 2008-03-01 18:04:31 +0100 | [diff] [blame] | 1019 | f = td->files[td->next_file]; |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 1020 | |
| 1021 | td->next_file++; |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 1022 | if (td->next_file >= td->o.nr_files) |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 1023 | td->next_file = 0; |
| 1024 | |
Jens Axboe | 87b1067 | 2009-03-04 09:39:47 +0100 | [diff] [blame] | 1025 | 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] | 1026 | if (fio_file_done(f)) { |
Jens Axboe | d5ed68e | 2007-03-28 09:33:43 +0200 | [diff] [blame] | 1027 | f = NULL; |
Jens Axboe | 059e63c | 2007-03-27 20:34:47 +0200 | [diff] [blame] | 1028 | continue; |
Jens Axboe | d5ed68e | 2007-03-28 09:33:43 +0200 | [diff] [blame] | 1029 | } |
Jens Axboe | 059e63c | 2007-03-27 20:34:47 +0200 | [diff] [blame] | 1030 | |
Jens Axboe | d6aed79 | 2009-06-03 08:41:15 +0200 | [diff] [blame] | 1031 | if (!fio_file_open(f)) { |
Jens Axboe | 87b1067 | 2009-03-04 09:39:47 +0100 | [diff] [blame] | 1032 | int err; |
| 1033 | |
Jens Axboe | 002fe73 | 2014-02-11 08:31:13 -0700 | [diff] [blame] | 1034 | if (td->nr_open_files >= td->o.open_files) |
| 1035 | return ERR_PTR(-EBUSY); |
| 1036 | |
Jens Axboe | 87b1067 | 2009-03-04 09:39:47 +0100 | [diff] [blame] | 1037 | err = td_io_open_file(td, f); |
Jens Axboe | b5696bf | 2009-03-04 16:03:49 +0100 | [diff] [blame] | 1038 | if (err) { |
| 1039 | dprint(FD_FILE, "error %d on open of %s\n", |
| 1040 | err, f->file_name); |
Jens Axboe | 87c27b4 | 2009-05-20 10:45:12 +0200 | [diff] [blame] | 1041 | f = NULL; |
Jens Axboe | 87b1067 | 2009-03-04 09:39:47 +0100 | [diff] [blame] | 1042 | continue; |
Jens Axboe | b5696bf | 2009-03-04 16:03:49 +0100 | [diff] [blame] | 1043 | } |
Jens Axboe | 87b1067 | 2009-03-04 09:39:47 +0100 | [diff] [blame] | 1044 | opened = 1; |
| 1045 | } |
| 1046 | |
Jens Axboe | 0b9d69e | 2009-09-11 22:29:54 +0200 | [diff] [blame] | 1047 | dprint(FD_FILE, "goodf=%x, badf=%x, ff=%x\n", goodf, badf, |
| 1048 | f->flags); |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 1049 | if ((!goodf || (f->flags & goodf)) && !(f->flags & badf)) |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 1050 | break; |
| 1051 | |
Jens Axboe | 87b1067 | 2009-03-04 09:39:47 +0100 | [diff] [blame] | 1052 | if (opened) |
| 1053 | td_io_close_file(td, f); |
| 1054 | |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 1055 | f = NULL; |
| 1056 | } while (td->next_file != old_next_file); |
| 1057 | |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 1058 | dprint(FD_FILE, "get_next_file_rr: %p\n", f); |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 1059 | return f; |
| 1060 | } |
| 1061 | |
Jens Axboe | 7eb3657 | 2010-03-08 13:58:49 +0100 | [diff] [blame] | 1062 | static struct fio_file *__get_next_file(struct thread_data *td) |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 1063 | { |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 1064 | struct fio_file *f; |
| 1065 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 1066 | assert(td->o.nr_files <= td->files_index); |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 1067 | |
Jens Axboe | b5696bf | 2009-03-04 16:03:49 +0100 | [diff] [blame] | 1068 | if (td->nr_done_files >= td->o.nr_files) { |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 1069 | dprint(FD_FILE, "get_next_file: nr_open=%d, nr_done=%d," |
| 1070 | " nr_files=%d\n", td->nr_open_files, |
| 1071 | td->nr_done_files, |
| 1072 | td->o.nr_files); |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 1073 | return NULL; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 1074 | } |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 1075 | |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 1076 | f = td->file_service_file; |
Jens Axboe | d6aed79 | 2009-06-03 08:41:15 +0200 | [diff] [blame] | 1077 | if (f && fio_file_open(f) && !fio_file_closing(f)) { |
Jens Axboe | a086c25 | 2009-03-04 08:27:37 +0100 | [diff] [blame] | 1078 | if (td->o.file_service_type == FIO_FSERVICE_SEQ) |
| 1079 | goto out; |
| 1080 | if (td->file_service_left--) |
| 1081 | goto out; |
| 1082 | } |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 1083 | |
Jens Axboe | a086c25 | 2009-03-04 08:27:37 +0100 | [diff] [blame] | 1084 | if (td->o.file_service_type == FIO_FSERVICE_RR || |
| 1085 | td->o.file_service_type == FIO_FSERVICE_SEQ) |
Jens Axboe | d6aed79 | 2009-06-03 08:41:15 +0200 | [diff] [blame] | 1086 | f = get_next_file_rr(td, FIO_FILE_open, FIO_FILE_closing); |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 1087 | else |
Jens Axboe | d6aed79 | 2009-06-03 08:41:15 +0200 | [diff] [blame] | 1088 | f = get_next_file_rand(td, FIO_FILE_open, FIO_FILE_closing); |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 1089 | |
Jens Axboe | 002fe73 | 2014-02-11 08:31:13 -0700 | [diff] [blame] | 1090 | if (IS_ERR(f)) |
| 1091 | return f; |
| 1092 | |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 1093 | td->file_service_file = f; |
| 1094 | td->file_service_left = td->file_service_nr - 1; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 1095 | out: |
Jens Axboe | 0dac421 | 2014-02-25 13:43:17 -0800 | [diff] [blame] | 1096 | if (f) |
| 1097 | dprint(FD_FILE, "get_next_file: %p [%s]\n", f, f->file_name); |
| 1098 | else |
| 1099 | dprint(FD_FILE, "get_next_file: NULL\n"); |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 1100 | return f; |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 1101 | } |
| 1102 | |
Jens Axboe | 7eb3657 | 2010-03-08 13:58:49 +0100 | [diff] [blame] | 1103 | static struct fio_file *get_next_file(struct thread_data *td) |
| 1104 | { |
Jens Axboe | d72be54 | 2012-11-30 19:37:46 +0100 | [diff] [blame] | 1105 | if (!(td->flags & TD_F_PROFILE_OPS)) { |
| 1106 | struct prof_io_ops *ops = &td->prof_io_ops; |
Jens Axboe | 7eb3657 | 2010-03-08 13:58:49 +0100 | [diff] [blame] | 1107 | |
Jens Axboe | d72be54 | 2012-11-30 19:37:46 +0100 | [diff] [blame] | 1108 | if (ops->get_next_file) |
| 1109 | return ops->get_next_file(td); |
| 1110 | } |
Jens Axboe | 7eb3657 | 2010-03-08 13:58:49 +0100 | [diff] [blame] | 1111 | |
| 1112 | return __get_next_file(td); |
| 1113 | } |
| 1114 | |
Jens Axboe | 002fe73 | 2014-02-11 08:31:13 -0700 | [diff] [blame] | 1115 | 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] | 1116 | { |
| 1117 | struct fio_file *f; |
| 1118 | |
| 1119 | do { |
| 1120 | f = get_next_file(td); |
Jens Axboe | 002fe73 | 2014-02-11 08:31:13 -0700 | [diff] [blame] | 1121 | if (IS_ERR_OR_NULL(f)) |
| 1122 | return PTR_ERR(f); |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 1123 | |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 1124 | io_u->file = f; |
| 1125 | get_file(f); |
| 1126 | |
| 1127 | if (!fill_io_u(td, io_u)) |
| 1128 | break; |
| 1129 | |
Jens Axboe | b5696bf | 2009-03-04 16:03:49 +0100 | [diff] [blame] | 1130 | put_file_log(td, f); |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 1131 | td_io_close_file(td, f); |
Jens Axboe | b5696bf | 2009-03-04 16:03:49 +0100 | [diff] [blame] | 1132 | io_u->file = NULL; |
Jens Axboe | d6aed79 | 2009-06-03 08:41:15 +0200 | [diff] [blame] | 1133 | fio_file_set_done(f); |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 1134 | td->nr_done_files++; |
Jens Axboe | 0b9d69e | 2009-09-11 22:29:54 +0200 | [diff] [blame] | 1135 | dprint(FD_FILE, "%s: is done (%d of %d)\n", f->file_name, |
| 1136 | td->nr_done_files, td->o.nr_files); |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 1137 | } while (1); |
| 1138 | |
| 1139 | return 0; |
| 1140 | } |
| 1141 | |
Jens Axboe | 3e260a4 | 2013-12-09 12:38:53 -0700 | [diff] [blame] | 1142 | static void lat_fatal(struct thread_data *td, struct io_completion_data *icd, |
| 1143 | unsigned long tusec, unsigned long max_usec) |
| 1144 | { |
| 1145 | if (!td->error) |
| 1146 | log_err("fio: latency of %lu usec exceeds specified max (%lu usec)\n", tusec, max_usec); |
| 1147 | td_verror(td, ETIMEDOUT, "max latency exceeded"); |
| 1148 | icd->error = ETIMEDOUT; |
| 1149 | } |
| 1150 | |
| 1151 | static void lat_new_cycle(struct thread_data *td) |
| 1152 | { |
| 1153 | fio_gettime(&td->latency_ts, NULL); |
| 1154 | td->latency_ios = ddir_rw_sum(td->io_blocks); |
| 1155 | td->latency_failed = 0; |
| 1156 | } |
| 1157 | |
| 1158 | /* |
| 1159 | * We had an IO outside the latency target. Reduce the queue depth. If we |
| 1160 | * are at QD=1, then it's time to give up. |
| 1161 | */ |
| 1162 | static int __lat_target_failed(struct thread_data *td) |
| 1163 | { |
| 1164 | if (td->latency_qd == 1) |
| 1165 | return 1; |
| 1166 | |
| 1167 | td->latency_qd_high = td->latency_qd; |
Jens Axboe | 6bb5821 | 2014-02-21 13:55:31 -0800 | [diff] [blame] | 1168 | |
| 1169 | if (td->latency_qd == td->latency_qd_low) |
| 1170 | td->latency_qd_low--; |
| 1171 | |
Jens Axboe | 3e260a4 | 2013-12-09 12:38:53 -0700 | [diff] [blame] | 1172 | td->latency_qd = (td->latency_qd + td->latency_qd_low) / 2; |
| 1173 | |
| 1174 | dprint(FD_RATE, "Ramped down: %d %d %d\n", td->latency_qd_low, td->latency_qd, td->latency_qd_high); |
| 1175 | |
| 1176 | /* |
| 1177 | * When we ramp QD down, quiesce existing IO to prevent |
| 1178 | * a storm of ramp downs due to pending higher depth. |
| 1179 | */ |
| 1180 | io_u_quiesce(td); |
| 1181 | lat_new_cycle(td); |
| 1182 | return 0; |
| 1183 | } |
| 1184 | |
| 1185 | static int lat_target_failed(struct thread_data *td) |
| 1186 | { |
| 1187 | if (td->o.latency_percentile.u.f == 100.0) |
| 1188 | return __lat_target_failed(td); |
| 1189 | |
| 1190 | td->latency_failed++; |
| 1191 | return 0; |
| 1192 | } |
| 1193 | |
| 1194 | void lat_target_init(struct thread_data *td) |
| 1195 | { |
Jens Axboe | 6bb5821 | 2014-02-21 13:55:31 -0800 | [diff] [blame] | 1196 | td->latency_end_run = 0; |
| 1197 | |
Jens Axboe | 3e260a4 | 2013-12-09 12:38:53 -0700 | [diff] [blame] | 1198 | if (td->o.latency_target) { |
| 1199 | dprint(FD_RATE, "Latency target=%llu\n", td->o.latency_target); |
| 1200 | fio_gettime(&td->latency_ts, NULL); |
| 1201 | td->latency_qd = 1; |
| 1202 | td->latency_qd_high = td->o.iodepth; |
| 1203 | td->latency_qd_low = 1; |
| 1204 | td->latency_ios = ddir_rw_sum(td->io_blocks); |
| 1205 | } else |
| 1206 | td->latency_qd = td->o.iodepth; |
| 1207 | } |
| 1208 | |
Jens Axboe | 6bb5821 | 2014-02-21 13:55:31 -0800 | [diff] [blame] | 1209 | void lat_target_reset(struct thread_data *td) |
| 1210 | { |
| 1211 | if (!td->latency_end_run) |
| 1212 | lat_target_init(td); |
| 1213 | } |
| 1214 | |
Jens Axboe | 3e260a4 | 2013-12-09 12:38:53 -0700 | [diff] [blame] | 1215 | static void lat_target_success(struct thread_data *td) |
| 1216 | { |
| 1217 | const unsigned int qd = td->latency_qd; |
Jens Axboe | 6bb5821 | 2014-02-21 13:55:31 -0800 | [diff] [blame] | 1218 | struct thread_options *o = &td->o; |
Jens Axboe | 3e260a4 | 2013-12-09 12:38:53 -0700 | [diff] [blame] | 1219 | |
| 1220 | td->latency_qd_low = td->latency_qd; |
| 1221 | |
| 1222 | /* |
| 1223 | * If we haven't failed yet, we double up to a failing value instead |
| 1224 | * of bisecting from highest possible queue depth. If we have set |
| 1225 | * a limit other than td->o.iodepth, bisect between that. |
| 1226 | */ |
Jens Axboe | 6bb5821 | 2014-02-21 13:55:31 -0800 | [diff] [blame] | 1227 | if (td->latency_qd_high != o->iodepth) |
Jens Axboe | 3e260a4 | 2013-12-09 12:38:53 -0700 | [diff] [blame] | 1228 | td->latency_qd = (td->latency_qd + td->latency_qd_high) / 2; |
| 1229 | else |
| 1230 | td->latency_qd *= 2; |
| 1231 | |
Jens Axboe | 6bb5821 | 2014-02-21 13:55:31 -0800 | [diff] [blame] | 1232 | if (td->latency_qd > o->iodepth) |
| 1233 | td->latency_qd = o->iodepth; |
Jens Axboe | 3e260a4 | 2013-12-09 12:38:53 -0700 | [diff] [blame] | 1234 | |
| 1235 | 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] | 1236 | |
Jens Axboe | 3e260a4 | 2013-12-09 12:38:53 -0700 | [diff] [blame] | 1237 | /* |
Jens Axboe | 6bb5821 | 2014-02-21 13:55:31 -0800 | [diff] [blame] | 1238 | * Same as last one, we are done. Let it run a latency cycle, so |
| 1239 | * we get only the results from the targeted depth. |
Jens Axboe | 3e260a4 | 2013-12-09 12:38:53 -0700 | [diff] [blame] | 1240 | */ |
Jens Axboe | 6bb5821 | 2014-02-21 13:55:31 -0800 | [diff] [blame] | 1241 | if (td->latency_qd == qd) { |
| 1242 | if (td->latency_end_run) { |
| 1243 | dprint(FD_RATE, "We are done\n"); |
| 1244 | td->done = 1; |
| 1245 | } else { |
| 1246 | dprint(FD_RATE, "Quiesce and final run\n"); |
| 1247 | io_u_quiesce(td); |
| 1248 | td->latency_end_run = 1; |
| 1249 | reset_all_stats(td); |
| 1250 | reset_io_stats(td); |
| 1251 | } |
| 1252 | } |
Jens Axboe | 3e260a4 | 2013-12-09 12:38:53 -0700 | [diff] [blame] | 1253 | |
| 1254 | lat_new_cycle(td); |
| 1255 | } |
| 1256 | |
| 1257 | /* |
| 1258 | * Check if we can bump the queue depth |
| 1259 | */ |
| 1260 | void lat_target_check(struct thread_data *td) |
| 1261 | { |
| 1262 | uint64_t usec_window; |
| 1263 | uint64_t ios; |
| 1264 | double success_ios; |
| 1265 | |
| 1266 | usec_window = utime_since_now(&td->latency_ts); |
| 1267 | if (usec_window < td->o.latency_window) |
| 1268 | return; |
| 1269 | |
| 1270 | ios = ddir_rw_sum(td->io_blocks) - td->latency_ios; |
| 1271 | success_ios = (double) (ios - td->latency_failed) / (double) ios; |
| 1272 | success_ios *= 100.0; |
| 1273 | |
| 1274 | dprint(FD_RATE, "Success rate: %.2f%% (target %.2f%%)\n", success_ios, td->o.latency_percentile.u.f); |
| 1275 | |
| 1276 | if (success_ios >= td->o.latency_percentile.u.f) |
| 1277 | lat_target_success(td); |
| 1278 | else |
| 1279 | __lat_target_failed(td); |
| 1280 | } |
| 1281 | |
| 1282 | /* |
| 1283 | * If latency target is enabled, we might be ramping up or down and not |
| 1284 | * using the full queue depth available. |
| 1285 | */ |
| 1286 | int queue_full(struct thread_data *td) |
| 1287 | { |
| 1288 | const int qempty = io_u_qempty(&td->io_u_freelist); |
| 1289 | |
| 1290 | if (qempty) |
| 1291 | return 1; |
| 1292 | if (!td->o.latency_target) |
| 1293 | return 0; |
| 1294 | |
| 1295 | return td->cur_depth >= td->latency_qd; |
| 1296 | } |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 1297 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1298 | struct io_u *__get_io_u(struct thread_data *td) |
| 1299 | { |
Jens Axboe | 0cae66f | 2014-03-03 13:55:32 -0700 | [diff] [blame] | 1300 | struct io_u *io_u = NULL; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1301 | |
Jens Axboe | e8462bd | 2009-07-06 12:59:04 +0200 | [diff] [blame] | 1302 | td_io_u_lock(td); |
| 1303 | |
| 1304 | again: |
Jens Axboe | 2ae0b20 | 2013-05-28 14:16:55 +0200 | [diff] [blame] | 1305 | if (!io_u_rempty(&td->io_u_requeues)) |
| 1306 | io_u = io_u_rpop(&td->io_u_requeues); |
Jens Axboe | 3e260a4 | 2013-12-09 12:38:53 -0700 | [diff] [blame] | 1307 | else if (!queue_full(td)) { |
Jens Axboe | 2ae0b20 | 2013-05-28 14:16:55 +0200 | [diff] [blame] | 1308 | io_u = io_u_qpop(&td->io_u_freelist); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1309 | |
Jens Axboe | 225ba9e | 2014-02-26 14:31:15 -0800 | [diff] [blame] | 1310 | io_u->file = NULL; |
Jens Axboe | 6040dab | 2006-10-24 19:38:15 +0200 | [diff] [blame] | 1311 | io_u->buflen = 0; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1312 | io_u->resid = 0; |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 1313 | io_u->end_io = NULL; |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 1314 | } |
| 1315 | |
| 1316 | if (io_u) { |
Jens Axboe | 0c6e751 | 2007-02-22 11:19:39 +0100 | [diff] [blame] | 1317 | assert(io_u->flags & IO_U_F_FREE); |
Jens Axboe | 2ecc1b5 | 2009-11-04 20:58:09 +0100 | [diff] [blame] | 1318 | io_u->flags &= ~(IO_U_F_FREE | IO_U_F_FREE_DEF); |
Jens Axboe | 1ef2b6b | 2010-10-08 15:07:01 +0200 | [diff] [blame] | 1319 | io_u->flags &= ~(IO_U_F_TRIMMED | IO_U_F_BARRIER); |
Jens Axboe | 82af2a7 | 2012-03-13 13:45:58 +0100 | [diff] [blame] | 1320 | io_u->flags &= ~IO_U_F_VER_LIST; |
Jens Axboe | 0c6e751 | 2007-02-22 11:19:39 +0100 | [diff] [blame] | 1321 | |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 1322 | io_u->error = 0; |
Jens Axboe | bcd5abf | 2013-01-23 09:27:25 -0700 | [diff] [blame] | 1323 | io_u->acct_ddir = -1; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1324 | td->cur_depth++; |
Radha Ramachandran | 0c41214 | 2009-11-03 21:45:31 +0100 | [diff] [blame] | 1325 | io_u->flags |= IO_U_F_IN_CUR_DEPTH; |
Jens Axboe | f940128 | 2014-02-06 12:17:37 -0700 | [diff] [blame] | 1326 | io_u->ipo = NULL; |
Jens Axboe | 1dec3e0 | 2010-03-19 10:33:39 +0100 | [diff] [blame] | 1327 | } else if (td->o.verify_async) { |
| 1328 | /* |
| 1329 | * We ran out, wait for async verify threads to finish and |
| 1330 | * return one |
| 1331 | */ |
| 1332 | pthread_cond_wait(&td->free_cond, &td->io_u_lock); |
| 1333 | goto again; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1334 | } |
| 1335 | |
Jens Axboe | e8462bd | 2009-07-06 12:59:04 +0200 | [diff] [blame] | 1336 | td_io_u_unlock(td); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1337 | return io_u; |
| 1338 | } |
| 1339 | |
Jens Axboe | 0d29de8 | 2010-09-01 13:54:15 +0200 | [diff] [blame] | 1340 | 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] | 1341 | { |
Jens Axboe | d72be54 | 2012-11-30 19:37:46 +0100 | [diff] [blame] | 1342 | if (!(td->flags & TD_F_TRIM_BACKLOG)) |
| 1343 | return 0; |
| 1344 | |
| 1345 | if (td->trim_entries) { |
Jens Axboe | 0d29de8 | 2010-09-01 13:54:15 +0200 | [diff] [blame] | 1346 | int get_trim = 0; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1347 | |
Jens Axboe | 0d29de8 | 2010-09-01 13:54:15 +0200 | [diff] [blame] | 1348 | if (td->trim_batch) { |
| 1349 | td->trim_batch--; |
| 1350 | get_trim = 1; |
| 1351 | } else if (!(td->io_hist_len % td->o.trim_backlog) && |
| 1352 | td->last_ddir != DDIR_READ) { |
| 1353 | td->trim_batch = td->o.trim_batch; |
| 1354 | if (!td->trim_batch) |
| 1355 | td->trim_batch = td->o.trim_backlog; |
| 1356 | get_trim = 1; |
| 1357 | } |
| 1358 | |
| 1359 | if (get_trim && !get_next_trim(td, io_u)) |
| 1360 | return 1; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 1361 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1362 | |
Jens Axboe | 0d29de8 | 2010-09-01 13:54:15 +0200 | [diff] [blame] | 1363 | return 0; |
| 1364 | } |
| 1365 | |
| 1366 | static int check_get_verify(struct thread_data *td, struct io_u *io_u) |
| 1367 | { |
Jens Axboe | d72be54 | 2012-11-30 19:37:46 +0100 | [diff] [blame] | 1368 | if (!(td->flags & TD_F_VER_BACKLOG)) |
| 1369 | return 0; |
| 1370 | |
| 1371 | if (td->io_hist_len) { |
Jens Axboe | 9e14418 | 2010-06-15 14:25:36 +0200 | [diff] [blame] | 1372 | int get_verify = 0; |
| 1373 | |
Jens Axboe | d1ece0c | 2012-03-07 09:32:58 +0100 | [diff] [blame] | 1374 | if (td->verify_batch) |
Jens Axboe | 9e14418 | 2010-06-15 14:25:36 +0200 | [diff] [blame] | 1375 | get_verify = 1; |
Jens Axboe | d1ece0c | 2012-03-07 09:32:58 +0100 | [diff] [blame] | 1376 | else if (!(td->io_hist_len % td->o.verify_backlog) && |
Jens Axboe | 9e14418 | 2010-06-15 14:25:36 +0200 | [diff] [blame] | 1377 | td->last_ddir != DDIR_READ) { |
| 1378 | td->verify_batch = td->o.verify_batch; |
Jens Axboe | f8a75c9 | 2010-06-15 14:27:28 +0200 | [diff] [blame] | 1379 | if (!td->verify_batch) |
| 1380 | td->verify_batch = td->o.verify_backlog; |
Jens Axboe | 9e14418 | 2010-06-15 14:25:36 +0200 | [diff] [blame] | 1381 | get_verify = 1; |
| 1382 | } |
| 1383 | |
Jens Axboe | d1ece0c | 2012-03-07 09:32:58 +0100 | [diff] [blame] | 1384 | if (get_verify && !get_next_verify(td, io_u)) { |
| 1385 | td->verify_batch--; |
Jens Axboe | 0d29de8 | 2010-09-01 13:54:15 +0200 | [diff] [blame] | 1386 | return 1; |
Jens Axboe | d1ece0c | 2012-03-07 09:32:58 +0100 | [diff] [blame] | 1387 | } |
Jens Axboe | 9e14418 | 2010-06-15 14:25:36 +0200 | [diff] [blame] | 1388 | } |
| 1389 | |
Jens Axboe | 0d29de8 | 2010-09-01 13:54:15 +0200 | [diff] [blame] | 1390 | return 0; |
| 1391 | } |
| 1392 | |
| 1393 | /* |
Jens Axboe | de78976 | 2011-09-16 22:11:23 +0200 | [diff] [blame] | 1394 | * Fill offset and start time into the buffer content, to prevent too |
Jens Axboe | 23f394d | 2011-09-16 22:45:27 +0200 | [diff] [blame] | 1395 | * easy compressible data for simple de-dupe attempts. Do this for every |
| 1396 | * 512b block in the range, since that should be the smallest block size |
| 1397 | * we can expect from a device. |
Jens Axboe | de78976 | 2011-09-16 22:11:23 +0200 | [diff] [blame] | 1398 | */ |
| 1399 | static void small_content_scramble(struct io_u *io_u) |
| 1400 | { |
Jens Axboe | 23f394d | 2011-09-16 22:45:27 +0200 | [diff] [blame] | 1401 | unsigned int i, nr_blocks = io_u->buflen / 512; |
Jens Axboe | 1ae83d4 | 2013-01-12 01:44:15 -0700 | [diff] [blame] | 1402 | uint64_t boffset; |
Jens Axboe | 23f394d | 2011-09-16 22:45:27 +0200 | [diff] [blame] | 1403 | unsigned int offset; |
| 1404 | void *p, *end; |
Jens Axboe | de78976 | 2011-09-16 22:11:23 +0200 | [diff] [blame] | 1405 | |
Jens Axboe | 23f394d | 2011-09-16 22:45:27 +0200 | [diff] [blame] | 1406 | if (!nr_blocks) |
| 1407 | return; |
| 1408 | |
| 1409 | p = io_u->xfer_buf; |
Jens Axboe | fba76ee | 2011-09-27 14:27:48 -0600 | [diff] [blame] | 1410 | boffset = io_u->offset; |
Jens Axboe | 81f0366 | 2012-02-02 09:20:09 +0100 | [diff] [blame] | 1411 | io_u->buf_filled_len = 0; |
Jens Axboe | fad82f7 | 2011-09-19 11:33:30 +0200 | [diff] [blame] | 1412 | |
Jens Axboe | 23f394d | 2011-09-16 22:45:27 +0200 | [diff] [blame] | 1413 | for (i = 0; i < nr_blocks; i++) { |
| 1414 | /* |
| 1415 | * Fill the byte offset into a "random" start offset of |
| 1416 | * the buffer, given by the product of the usec time |
| 1417 | * and the actual offset. |
| 1418 | */ |
Jens Axboe | fad82f7 | 2011-09-19 11:33:30 +0200 | [diff] [blame] | 1419 | offset = (io_u->start_time.tv_usec ^ boffset) & 511; |
Jens Axboe | 1ae83d4 | 2013-01-12 01:44:15 -0700 | [diff] [blame] | 1420 | offset &= ~(sizeof(uint64_t) - 1); |
| 1421 | if (offset >= 512 - sizeof(uint64_t)) |
| 1422 | offset -= sizeof(uint64_t); |
Jens Axboe | fba76ee | 2011-09-27 14:27:48 -0600 | [diff] [blame] | 1423 | memcpy(p + offset, &boffset, sizeof(boffset)); |
Jens Axboe | 23f394d | 2011-09-16 22:45:27 +0200 | [diff] [blame] | 1424 | |
| 1425 | end = p + 512 - sizeof(io_u->start_time); |
| 1426 | memcpy(end, &io_u->start_time, sizeof(io_u->start_time)); |
| 1427 | p += 512; |
Jens Axboe | fad82f7 | 2011-09-19 11:33:30 +0200 | [diff] [blame] | 1428 | boffset += 512; |
Jens Axboe | 23f394d | 2011-09-16 22:45:27 +0200 | [diff] [blame] | 1429 | } |
Jens Axboe | de78976 | 2011-09-16 22:11:23 +0200 | [diff] [blame] | 1430 | } |
| 1431 | |
| 1432 | /* |
Jens Axboe | 0d29de8 | 2010-09-01 13:54:15 +0200 | [diff] [blame] | 1433 | * Return an io_u to be processed. Gets a buflen and offset, sets direction, |
| 1434 | * etc. The returned io_u is fully ready to be prepped and submitted. |
| 1435 | */ |
| 1436 | struct io_u *get_io_u(struct thread_data *td) |
| 1437 | { |
| 1438 | struct fio_file *f; |
| 1439 | struct io_u *io_u; |
Jens Axboe | de78976 | 2011-09-16 22:11:23 +0200 | [diff] [blame] | 1440 | int do_scramble = 0; |
Jens Axboe | 002fe73 | 2014-02-11 08:31:13 -0700 | [diff] [blame] | 1441 | long ret = 0; |
Jens Axboe | 0d29de8 | 2010-09-01 13:54:15 +0200 | [diff] [blame] | 1442 | |
| 1443 | io_u = __get_io_u(td); |
| 1444 | if (!io_u) { |
| 1445 | dprint(FD_IO, "__get_io_u failed\n"); |
| 1446 | return NULL; |
| 1447 | } |
| 1448 | |
| 1449 | if (check_get_verify(td, io_u)) |
| 1450 | goto out; |
| 1451 | if (check_get_trim(td, io_u)) |
| 1452 | goto out; |
| 1453 | |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 1454 | /* |
| 1455 | * from a requeue, io_u already setup |
| 1456 | */ |
| 1457 | if (io_u->file) |
Jens Axboe | 77f392b | 2007-02-19 20:13:09 +0100 | [diff] [blame] | 1458 | goto out; |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 1459 | |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 1460 | /* |
| 1461 | * If using an iolog, grab next piece if any available. |
| 1462 | */ |
Jens Axboe | d72be54 | 2012-11-30 19:37:46 +0100 | [diff] [blame] | 1463 | if (td->flags & TD_F_READ_IOLOG) { |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 1464 | if (read_iolog_get(td, io_u)) |
| 1465 | goto err_put; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 1466 | } else if (set_io_u_file(td, io_u)) { |
Jens Axboe | 002fe73 | 2014-02-11 08:31:13 -0700 | [diff] [blame] | 1467 | ret = -EBUSY; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 1468 | dprint(FD_IO, "io_u %p, setting file failed\n", io_u); |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 1469 | goto err_put; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 1470 | } |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 1471 | |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 1472 | f = io_u->file; |
Jens Axboe | 002fe73 | 2014-02-11 08:31:13 -0700 | [diff] [blame] | 1473 | if (!f) { |
| 1474 | dprint(FD_IO, "io_u %p, setting file failed\n", io_u); |
| 1475 | goto err_put; |
| 1476 | } |
| 1477 | |
Jens Axboe | d6aed79 | 2009-06-03 08:41:15 +0200 | [diff] [blame] | 1478 | assert(fio_file_open(f)); |
Jens Axboe | 97af62c | 2007-05-22 11:12:13 +0200 | [diff] [blame] | 1479 | |
Jens Axboe | ff58fce | 2010-08-25 12:02:08 +0200 | [diff] [blame] | 1480 | if (ddir_rw(io_u->ddir)) { |
Jens Axboe | d0656a9 | 2008-02-01 18:33:23 +0100 | [diff] [blame] | 1481 | if (!io_u->buflen && !(td->io_ops->flags & FIO_NOIO)) { |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 1482 | 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] | 1483 | goto err_put; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 1484 | } |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 1485 | |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 1486 | f->last_start = io_u->offset; |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 1487 | f->last_pos = io_u->offset + io_u->buflen; |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 1488 | |
Jens Axboe | fd68418 | 2011-09-19 09:24:44 +0200 | [diff] [blame] | 1489 | if (io_u->ddir == DDIR_WRITE) { |
Jens Axboe | d72be54 | 2012-11-30 19:37:46 +0100 | [diff] [blame] | 1490 | if (td->flags & TD_F_REFILL_BUFFERS) { |
Jens Axboe | 9c42684 | 2012-03-02 21:02:12 +0100 | [diff] [blame] | 1491 | io_u_fill_buffer(td, io_u, |
| 1492 | io_u->xfer_buflen, io_u->xfer_buflen); |
Jens Axboe | d72be54 | 2012-11-30 19:37:46 +0100 | [diff] [blame] | 1493 | } else if (td->flags & TD_F_SCRAMBLE_BUFFERS) |
Jens Axboe | fd68418 | 2011-09-19 09:24:44 +0200 | [diff] [blame] | 1494 | do_scramble = 1; |
Jens Axboe | d72be54 | 2012-11-30 19:37:46 +0100 | [diff] [blame] | 1495 | if (td->flags & TD_F_VER_NONE) { |
Jens Axboe | 629f1d7 | 2012-03-09 19:02:01 +0100 | [diff] [blame] | 1496 | populate_verify_io_u(td, io_u); |
| 1497 | do_scramble = 0; |
| 1498 | } |
Jens Axboe | fd68418 | 2011-09-19 09:24:44 +0200 | [diff] [blame] | 1499 | } else if (io_u->ddir == DDIR_READ) { |
Radha Ramachandran | cbe8d75 | 2010-07-14 08:36:07 +0200 | [diff] [blame] | 1500 | /* |
| 1501 | * Reset the buf_filled parameters so next time if the |
| 1502 | * buffer is used for writes it is refilled. |
| 1503 | */ |
Radha Ramachandran | cbe8d75 | 2010-07-14 08:36:07 +0200 | [diff] [blame] | 1504 | io_u->buf_filled_len = 0; |
| 1505 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1506 | } |
| 1507 | |
Jens Axboe | 165faf1 | 2007-02-07 11:30:37 +0100 | [diff] [blame] | 1508 | /* |
| 1509 | * Set io data pointers. |
| 1510 | */ |
Jens Axboe | cec6b55 | 2007-02-06 20:15:38 +0100 | [diff] [blame] | 1511 | io_u->xfer_buf = io_u->buf; |
| 1512 | io_u->xfer_buflen = io_u->buflen; |
Jens Axboe | 5973caf | 2008-05-21 19:52:35 +0200 | [diff] [blame] | 1513 | |
Jens Axboe | 6ac7a33 | 2008-03-01 15:22:32 +0100 | [diff] [blame] | 1514 | out: |
Jens Axboe | 0d29de8 | 2010-09-01 13:54:15 +0200 | [diff] [blame] | 1515 | assert(io_u->file); |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 1516 | if (!td_io_prep(td, io_u)) { |
Jens Axboe | 993bf48 | 2008-11-14 13:04:53 +0100 | [diff] [blame] | 1517 | if (!td->o.disable_slat) |
| 1518 | fio_gettime(&io_u->start_time, NULL); |
Jens Axboe | de78976 | 2011-09-16 22:11:23 +0200 | [diff] [blame] | 1519 | if (do_scramble) |
| 1520 | small_content_scramble(io_u); |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 1521 | return io_u; |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 1522 | } |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 1523 | err_put: |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 1524 | dprint(FD_IO, "get_io_u failed\n"); |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 1525 | put_io_u(td, io_u); |
Jens Axboe | 002fe73 | 2014-02-11 08:31:13 -0700 | [diff] [blame] | 1526 | return ERR_PTR(ret); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1527 | } |
| 1528 | |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 1529 | void io_u_log_error(struct thread_data *td, struct io_u *io_u) |
| 1530 | { |
Dmitry Monakhov | 8b28bd4 | 2012-09-23 15:46:09 +0400 | [diff] [blame] | 1531 | 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] | 1532 | const char *msg[] = { "read", "write", "sync", "datasync", |
| 1533 | "sync_file_range", "wait", "trim" }; |
| 1534 | |
Dmitry Monakhov | 8b28bd4 | 2012-09-23 15:46:09 +0400 | [diff] [blame] | 1535 | if (td_non_fatal_error(td, eb, io_u->error) && !td->o.error_dump) |
| 1536 | return; |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 1537 | |
| 1538 | log_err("fio: io_u error"); |
| 1539 | |
| 1540 | if (io_u->file) |
| 1541 | log_err(" on file %s", io_u->file->file_name); |
| 1542 | |
| 1543 | log_err(": %s\n", strerror(io_u->error)); |
| 1544 | |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 1545 | log_err(" %s offset=%llu, buflen=%lu\n", msg[io_u->ddir], |
| 1546 | io_u->offset, io_u->xfer_buflen); |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 1547 | |
| 1548 | if (!td->error) |
| 1549 | td_verror(td, io_u->error, "io_u error"); |
| 1550 | } |
| 1551 | |
Jens Axboe | aba6c95 | 2014-02-13 19:59:56 -0700 | [diff] [blame] | 1552 | static inline int gtod_reduce(struct thread_data *td) |
| 1553 | { |
Jens Axboe | 729fe3a | 2014-02-14 08:46:35 -0700 | [diff] [blame] | 1554 | 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] | 1555 | && td->o.disable_bw; |
Jens Axboe | aba6c95 | 2014-02-13 19:59:56 -0700 | [diff] [blame] | 1556 | } |
| 1557 | |
Jens Axboe | c8eeb9d | 2011-10-05 14:02:22 +0200 | [diff] [blame] | 1558 | static void account_io_completion(struct thread_data *td, struct io_u *io_u, |
| 1559 | struct io_completion_data *icd, |
| 1560 | const enum fio_ddir idx, unsigned int bytes) |
| 1561 | { |
Jens Axboe | 24d23ca | 2012-11-13 08:31:24 -0700 | [diff] [blame] | 1562 | unsigned long lusec = 0; |
Jens Axboe | c8eeb9d | 2011-10-05 14:02:22 +0200 | [diff] [blame] | 1563 | |
Jens Axboe | aba6c95 | 2014-02-13 19:59:56 -0700 | [diff] [blame] | 1564 | if (!gtod_reduce(td)) |
Jens Axboe | c8eeb9d | 2011-10-05 14:02:22 +0200 | [diff] [blame] | 1565 | lusec = utime_since(&io_u->issue_time, &icd->time); |
| 1566 | |
| 1567 | if (!td->o.disable_lat) { |
| 1568 | unsigned long tusec; |
| 1569 | |
| 1570 | tusec = utime_since(&io_u->start_time, &icd->time); |
| 1571 | add_lat_sample(td, idx, tusec, bytes); |
Jens Axboe | 1550153 | 2012-10-24 16:37:45 +0200 | [diff] [blame] | 1572 | |
Jens Axboe | d4afedf | 2013-05-22 22:21:29 +0200 | [diff] [blame] | 1573 | if (td->flags & TD_F_PROFILE_OPS) { |
| 1574 | struct prof_io_ops *ops = &td->prof_io_ops; |
| 1575 | |
| 1576 | if (ops->io_u_lat) |
| 1577 | icd->error = ops->io_u_lat(td, tusec); |
| 1578 | } |
| 1579 | |
Jens Axboe | 3e260a4 | 2013-12-09 12:38:53 -0700 | [diff] [blame] | 1580 | if (td->o.max_latency && tusec > td->o.max_latency) |
| 1581 | lat_fatal(td, icd, tusec, td->o.max_latency); |
| 1582 | if (td->o.latency_target && tusec > td->o.latency_target) { |
| 1583 | if (lat_target_failed(td)) |
| 1584 | lat_fatal(td, icd, tusec, td->o.latency_target); |
Jens Axboe | 1550153 | 2012-10-24 16:37:45 +0200 | [diff] [blame] | 1585 | } |
Jens Axboe | c8eeb9d | 2011-10-05 14:02:22 +0200 | [diff] [blame] | 1586 | } |
| 1587 | |
| 1588 | if (!td->o.disable_clat) { |
| 1589 | add_clat_sample(td, idx, lusec, bytes); |
| 1590 | io_u_mark_latency(td, lusec); |
| 1591 | } |
| 1592 | |
| 1593 | if (!td->o.disable_bw) |
| 1594 | add_bw_sample(td, idx, bytes, &icd->time); |
| 1595 | |
Jens Axboe | aba6c95 | 2014-02-13 19:59:56 -0700 | [diff] [blame] | 1596 | if (!gtod_reduce(td)) |
| 1597 | add_iops_sample(td, idx, bytes, &icd->time); |
Jens Axboe | ddf24e4 | 2013-08-09 12:53:44 -0600 | [diff] [blame] | 1598 | |
| 1599 | if (td->o.number_ios && !--td->o.number_ios) |
| 1600 | td->done = 1; |
Jens Axboe | c8eeb9d | 2011-10-05 14:02:22 +0200 | [diff] [blame] | 1601 | } |
| 1602 | |
Steven Lang | 1b8dbf2 | 2011-11-09 13:48:01 +0100 | [diff] [blame] | 1603 | static long long usec_for_io(struct thread_data *td, enum fio_ddir ddir) |
| 1604 | { |
Jens Axboe | 1ae83d4 | 2013-01-12 01:44:15 -0700 | [diff] [blame] | 1605 | uint64_t secs, remainder, bps, bytes; |
| 1606 | |
Steven Lang | 1b8dbf2 | 2011-11-09 13:48:01 +0100 | [diff] [blame] | 1607 | bytes = td->this_io_bytes[ddir]; |
| 1608 | bps = td->rate_bps[ddir]; |
| 1609 | secs = bytes / bps; |
| 1610 | remainder = bytes % bps; |
| 1611 | return remainder * 1000000 / bps + secs * 1000000; |
| 1612 | } |
| 1613 | |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1614 | static void io_completed(struct thread_data *td, struct io_u *io_u, |
| 1615 | struct io_completion_data *icd) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1616 | { |
Jens Axboe | 44f2969 | 2010-03-09 20:09:44 +0100 | [diff] [blame] | 1617 | struct fio_file *f; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1618 | |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 1619 | dprint_io_u(io_u, "io complete"); |
| 1620 | |
Jens Axboe | 2ecc1b5 | 2009-11-04 20:58:09 +0100 | [diff] [blame] | 1621 | td_io_u_lock(td); |
Jens Axboe | 0c6e751 | 2007-02-22 11:19:39 +0100 | [diff] [blame] | 1622 | assert(io_u->flags & IO_U_F_FLIGHT); |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 1623 | io_u->flags &= ~(IO_U_F_FLIGHT | IO_U_F_BUSY_OK); |
Jens Axboe | f940128 | 2014-02-06 12:17:37 -0700 | [diff] [blame] | 1624 | |
| 1625 | /* |
| 1626 | * Mark IO ok to verify |
| 1627 | */ |
| 1628 | if (io_u->ipo) { |
| 1629 | io_u->ipo->flags &= ~IP_F_IN_FLIGHT; |
| 1630 | write_barrier(); |
| 1631 | } |
| 1632 | |
Jens Axboe | 2ecc1b5 | 2009-11-04 20:58:09 +0100 | [diff] [blame] | 1633 | td_io_u_unlock(td); |
Jens Axboe | 0c6e751 | 2007-02-22 11:19:39 +0100 | [diff] [blame] | 1634 | |
Jens Axboe | 5f9099e | 2009-06-16 22:40:26 +0200 | [diff] [blame] | 1635 | if (ddir_sync(io_u->ddir)) { |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 1636 | td->last_was_sync = 1; |
Jens Axboe | 44f2969 | 2010-03-09 20:09:44 +0100 | [diff] [blame] | 1637 | f = io_u->file; |
| 1638 | if (f) { |
| 1639 | f->first_write = -1ULL; |
| 1640 | f->last_write = -1ULL; |
| 1641 | } |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 1642 | return; |
| 1643 | } |
| 1644 | |
| 1645 | td->last_was_sync = 0; |
Jens Axboe | 9e14418 | 2010-06-15 14:25:36 +0200 | [diff] [blame] | 1646 | td->last_ddir = io_u->ddir; |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 1647 | |
Jens Axboe | ff58fce | 2010-08-25 12:02:08 +0200 | [diff] [blame] | 1648 | if (!io_u->error && ddir_rw(io_u->ddir)) { |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1649 | unsigned int bytes = io_u->buflen - io_u->resid; |
Jens Axboe | 1e97cce | 2006-12-05 11:44:16 +0100 | [diff] [blame] | 1650 | const enum fio_ddir idx = io_u->ddir; |
Radha Ramachandran | ba3e4e0 | 2009-12-09 22:31:44 +0100 | [diff] [blame] | 1651 | const enum fio_ddir odx = io_u->ddir ^ 1; |
Jens Axboe | b29ee5b | 2008-09-11 10:17:26 +0200 | [diff] [blame] | 1652 | int ret; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1653 | |
Jens Axboe | b29ee5b | 2008-09-11 10:17:26 +0200 | [diff] [blame] | 1654 | td->io_blocks[idx]++; |
Jens Axboe | c8eeb9d | 2011-10-05 14:02:22 +0200 | [diff] [blame] | 1655 | td->this_io_blocks[idx]++; |
Jens Axboe | b29ee5b | 2008-09-11 10:17:26 +0200 | [diff] [blame] | 1656 | td->io_bytes[idx] += bytes; |
webee | ae2fafc | 2012-03-23 13:41:41 +0100 | [diff] [blame] | 1657 | |
| 1658 | if (!(io_u->flags & IO_U_F_VER_LIST)) |
| 1659 | td->this_io_bytes[idx] += bytes; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1660 | |
Jens Axboe | 44f2969 | 2010-03-09 20:09:44 +0100 | [diff] [blame] | 1661 | if (idx == DDIR_WRITE) { |
| 1662 | f = io_u->file; |
| 1663 | if (f) { |
| 1664 | if (f->first_write == -1ULL || |
| 1665 | io_u->offset < f->first_write) |
| 1666 | f->first_write = io_u->offset; |
| 1667 | if (f->last_write == -1ULL || |
| 1668 | ((io_u->offset + bytes) > f->last_write)) |
| 1669 | f->last_write = io_u->offset + bytes; |
| 1670 | } |
| 1671 | } |
| 1672 | |
Steven Lang | 6b1190f | 2012-02-07 09:42:59 +0100 | [diff] [blame] | 1673 | if (ramp_time_over(td) && (td->runstate == TD_RUNNING || |
| 1674 | td->runstate == TD_VERIFYING)) { |
Jens Axboe | c8eeb9d | 2011-10-05 14:02:22 +0200 | [diff] [blame] | 1675 | account_io_completion(td, io_u, icd, idx, bytes); |
Jens Axboe | 40e1a6f | 2009-06-11 10:55:39 +0200 | [diff] [blame] | 1676 | |
Jens Axboe | b23b6a2 | 2009-06-11 22:06:23 +0200 | [diff] [blame] | 1677 | if (__should_check_rate(td, idx)) { |
Radha Ramachandran | ba3e4e0 | 2009-12-09 22:31:44 +0100 | [diff] [blame] | 1678 | td->rate_pending_usleep[idx] = |
Steven Lang | 1b8dbf2 | 2011-11-09 13:48:01 +0100 | [diff] [blame] | 1679 | (usec_for_io(td, idx) - |
Radha Ramachandran | ba3e4e0 | 2009-12-09 22:31:44 +0100 | [diff] [blame] | 1680 | utime_since_now(&td->start)); |
Jens Axboe | b23b6a2 | 2009-06-11 22:06:23 +0200 | [diff] [blame] | 1681 | } |
Shaohua Li | 6eaf09d | 2012-09-14 08:49:43 +0200 | [diff] [blame] | 1682 | if (idx != DDIR_TRIM && __should_check_rate(td, odx)) |
Radha Ramachandran | ba3e4e0 | 2009-12-09 22:31:44 +0100 | [diff] [blame] | 1683 | td->rate_pending_usleep[odx] = |
Steven Lang | 1b8dbf2 | 2011-11-09 13:48:01 +0100 | [diff] [blame] | 1684 | (usec_for_io(td, odx) - |
Radha Ramachandran | ba3e4e0 | 2009-12-09 22:31:44 +0100 | [diff] [blame] | 1685 | utime_since_now(&td->start)); |
Jens Axboe | 721938a | 2008-09-10 09:46:16 +0200 | [diff] [blame] | 1686 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1687 | |
Jens Axboe | b29ee5b | 2008-09-11 10:17:26 +0200 | [diff] [blame] | 1688 | icd->bytes_done[idx] += bytes; |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 1689 | |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 1690 | if (io_u->end_io) { |
Jens Axboe | 36690c9 | 2007-03-26 10:23:34 +0200 | [diff] [blame] | 1691 | ret = io_u->end_io(td, io_u); |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 1692 | if (ret && !icd->error) |
| 1693 | icd->error = ret; |
| 1694 | } |
Jens Axboe | ff58fce | 2010-08-25 12:02:08 +0200 | [diff] [blame] | 1695 | } else if (io_u->error) { |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1696 | icd->error = io_u->error; |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 1697 | io_u_log_error(td, io_u); |
| 1698 | } |
Dmitry Monakhov | 8b28bd4 | 2012-09-23 15:46:09 +0400 | [diff] [blame] | 1699 | if (icd->error) { |
| 1700 | enum error_type_bit eb = td_error_type(io_u->ddir, icd->error); |
| 1701 | if (!td_non_fatal_error(td, eb, icd->error)) |
| 1702 | return; |
Radha Ramachandran | f2bba18 | 2009-06-15 08:40:16 +0200 | [diff] [blame] | 1703 | /* |
| 1704 | * If there is a non_fatal error, then add to the error count |
| 1705 | * and clear all the errors. |
| 1706 | */ |
| 1707 | update_error_count(td, icd->error); |
| 1708 | td_clear_error(td); |
| 1709 | icd->error = 0; |
| 1710 | io_u->error = 0; |
| 1711 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1712 | } |
| 1713 | |
Jens Axboe | 9520ebb | 2008-10-16 21:03:27 +0200 | [diff] [blame] | 1714 | static void init_icd(struct thread_data *td, struct io_completion_data *icd, |
| 1715 | int nr) |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 1716 | { |
Shaohua Li | 6eaf09d | 2012-09-14 08:49:43 +0200 | [diff] [blame] | 1717 | int ddir; |
Jens Axboe | aba6c95 | 2014-02-13 19:59:56 -0700 | [diff] [blame] | 1718 | |
| 1719 | if (!gtod_reduce(td)) |
Jens Axboe | 9520ebb | 2008-10-16 21:03:27 +0200 | [diff] [blame] | 1720 | fio_gettime(&icd->time, NULL); |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 1721 | |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 1722 | icd->nr = nr; |
| 1723 | |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 1724 | icd->error = 0; |
Shaohua Li | 6eaf09d | 2012-09-14 08:49:43 +0200 | [diff] [blame] | 1725 | for (ddir = DDIR_READ; ddir < DDIR_RWDIR_CNT; ddir++) |
| 1726 | icd->bytes_done[ddir] = 0; |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 1727 | } |
| 1728 | |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1729 | static void ios_completed(struct thread_data *td, |
| 1730 | struct io_completion_data *icd) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1731 | { |
| 1732 | struct io_u *io_u; |
| 1733 | int i; |
| 1734 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1735 | for (i = 0; i < icd->nr; i++) { |
| 1736 | io_u = td->io_ops->event(td, i); |
| 1737 | |
| 1738 | io_completed(td, io_u, icd); |
Jens Axboe | e8462bd | 2009-07-06 12:59:04 +0200 | [diff] [blame] | 1739 | |
| 1740 | if (!(io_u->flags & IO_U_F_FREE_DEF)) |
| 1741 | put_io_u(td, io_u); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1742 | } |
| 1743 | } |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1744 | |
Jens Axboe | e7e6cfb | 2007-02-20 10:58:34 +0100 | [diff] [blame] | 1745 | /* |
| 1746 | * Complete a single io_u for the sync engines. |
| 1747 | */ |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 1748 | 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] | 1749 | uint64_t *bytes) |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1750 | { |
| 1751 | struct io_completion_data icd; |
| 1752 | |
Jens Axboe | 9520ebb | 2008-10-16 21:03:27 +0200 | [diff] [blame] | 1753 | init_icd(td, &icd, 1); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1754 | io_completed(td, io_u, &icd); |
Jens Axboe | e8462bd | 2009-07-06 12:59:04 +0200 | [diff] [blame] | 1755 | |
| 1756 | if (!(io_u->flags & IO_U_F_FREE_DEF)) |
| 1757 | put_io_u(td, io_u); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1758 | |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 1759 | if (icd.error) { |
| 1760 | td_verror(td, icd.error, "io_u_sync_complete"); |
| 1761 | return -1; |
| 1762 | } |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1763 | |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 1764 | if (bytes) { |
Shaohua Li | 6eaf09d | 2012-09-14 08:49:43 +0200 | [diff] [blame] | 1765 | int ddir; |
| 1766 | |
| 1767 | for (ddir = DDIR_READ; ddir < DDIR_RWDIR_CNT; ddir++) |
| 1768 | bytes[ddir] += icd.bytes_done[ddir]; |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 1769 | } |
| 1770 | |
| 1771 | return 0; |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1772 | } |
| 1773 | |
Jens Axboe | e7e6cfb | 2007-02-20 10:58:34 +0100 | [diff] [blame] | 1774 | /* |
| 1775 | * Called to complete min_events number of io for the async engines. |
| 1776 | */ |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 1777 | int io_u_queued_complete(struct thread_data *td, int min_evts, |
Jens Axboe | 100f49f | 2013-01-23 10:15:57 -0700 | [diff] [blame] | 1778 | uint64_t *bytes) |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1779 | { |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1780 | struct io_completion_data icd; |
Jens Axboe | 00de55e | 2007-02-20 10:45:57 +0100 | [diff] [blame] | 1781 | struct timespec *tvp = NULL; |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1782 | int ret; |
Davide Libenzi | 4d06a33 | 2007-03-22 07:43:50 +0100 | [diff] [blame] | 1783 | struct timespec ts = { .tv_sec = 0, .tv_nsec = 0, }; |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1784 | |
Jens Axboe | 4950421 | 2008-06-05 09:03:30 +0200 | [diff] [blame] | 1785 | dprint(FD_IO, "io_u_queued_completed: min=%d\n", min_evts); |
Jens Axboe | b271fe6 | 2008-02-04 10:49:41 +0100 | [diff] [blame] | 1786 | |
Jens Axboe | 4950421 | 2008-06-05 09:03:30 +0200 | [diff] [blame] | 1787 | if (!min_evts) |
Jens Axboe | 00de55e | 2007-02-20 10:45:57 +0100 | [diff] [blame] | 1788 | tvp = &ts; |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1789 | |
Jens Axboe | 4950421 | 2008-06-05 09:03:30 +0200 | [diff] [blame] | 1790 | 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] | 1791 | if (ret < 0) { |
Jens Axboe | e1161c3 | 2007-02-22 19:36:48 +0100 | [diff] [blame] | 1792 | td_verror(td, -ret, "td_io_getevents"); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1793 | return ret; |
| 1794 | } else if (!ret) |
| 1795 | return ret; |
| 1796 | |
Jens Axboe | 9520ebb | 2008-10-16 21:03:27 +0200 | [diff] [blame] | 1797 | init_icd(td, &icd, ret); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1798 | ios_completed(td, &icd); |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 1799 | if (icd.error) { |
| 1800 | td_verror(td, icd.error, "io_u_queued_complete"); |
| 1801 | return -1; |
| 1802 | } |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1803 | |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 1804 | if (bytes) { |
Shaohua Li | 6eaf09d | 2012-09-14 08:49:43 +0200 | [diff] [blame] | 1805 | int ddir; |
| 1806 | |
| 1807 | for (ddir = DDIR_READ; ddir < DDIR_RWDIR_CNT; ddir++) |
| 1808 | bytes[ddir] += icd.bytes_done[ddir]; |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 1809 | } |
| 1810 | |
| 1811 | return 0; |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1812 | } |
Jens Axboe | 7e77dd0 | 2007-02-20 10:57:34 +0100 | [diff] [blame] | 1813 | |
| 1814 | /* |
| 1815 | * Call when io_u is really queued, to update the submission latency. |
| 1816 | */ |
| 1817 | void io_u_queued(struct thread_data *td, struct io_u *io_u) |
| 1818 | { |
Jens Axboe | 9520ebb | 2008-10-16 21:03:27 +0200 | [diff] [blame] | 1819 | if (!td->o.disable_slat) { |
| 1820 | unsigned long slat_time; |
Jens Axboe | 7e77dd0 | 2007-02-20 10:57:34 +0100 | [diff] [blame] | 1821 | |
Jens Axboe | 9520ebb | 2008-10-16 21:03:27 +0200 | [diff] [blame] | 1822 | slat_time = utime_since(&io_u->start_time, &io_u->issue_time); |
Jens Axboe | 29a90dd | 2009-06-10 06:57:47 +0200 | [diff] [blame] | 1823 | add_slat_sample(td, io_u->ddir, slat_time, io_u->xfer_buflen); |
Jens Axboe | 9520ebb | 2008-10-16 21:03:27 +0200 | [diff] [blame] | 1824 | } |
Jens Axboe | 7e77dd0 | 2007-02-20 10:57:34 +0100 | [diff] [blame] | 1825 | } |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 1826 | |
Jens Axboe | cc86c39 | 2013-05-03 15:12:33 +0200 | [diff] [blame] | 1827 | void fill_io_buffer(struct thread_data *td, void *buf, unsigned int min_write, |
| 1828 | unsigned int max_bs) |
Jens Axboe | 5973caf | 2008-05-21 19:52:35 +0200 | [diff] [blame] | 1829 | { |
Jens Axboe | ce35b1e | 2014-01-14 15:35:58 -0700 | [diff] [blame] | 1830 | if (td->o.buffer_pattern_bytes) |
| 1831 | fill_buffer_pattern(td, buf, max_bs); |
| 1832 | else if (!td->o.zero_buffers) { |
Jens Axboe | 9c42684 | 2012-03-02 21:02:12 +0100 | [diff] [blame] | 1833 | unsigned int perc = td->o.compress_percentage; |
| 1834 | |
| 1835 | if (perc) { |
Jens Axboe | f97a43a | 2012-03-09 19:06:24 +0100 | [diff] [blame] | 1836 | unsigned int seg = min_write; |
| 1837 | |
| 1838 | seg = min(min_write, td->o.compress_chunk); |
Jens Axboe | cc86c39 | 2013-05-03 15:12:33 +0200 | [diff] [blame] | 1839 | if (!seg) |
| 1840 | seg = min_write; |
| 1841 | |
| 1842 | fill_random_buf_percentage(&td->buf_state, buf, |
Jens Axboe | f97a43a | 2012-03-09 19:06:24 +0100 | [diff] [blame] | 1843 | perc, seg, max_bs); |
Jens Axboe | 9c42684 | 2012-03-02 21:02:12 +0100 | [diff] [blame] | 1844 | } else |
Jens Axboe | cc86c39 | 2013-05-03 15:12:33 +0200 | [diff] [blame] | 1845 | fill_random_buf(&td->buf_state, buf, max_bs); |
Jens Axboe | 9c42684 | 2012-03-02 21:02:12 +0100 | [diff] [blame] | 1846 | } else |
Jens Axboe | cc86c39 | 2013-05-03 15:12:33 +0200 | [diff] [blame] | 1847 | memset(buf, 0, max_bs); |
| 1848 | } |
| 1849 | |
| 1850 | /* |
| 1851 | * "randomly" fill the buffer contents |
| 1852 | */ |
| 1853 | void io_u_fill_buffer(struct thread_data *td, struct io_u *io_u, |
| 1854 | unsigned int min_write, unsigned int max_bs) |
| 1855 | { |
| 1856 | io_u->buf_filled_len = 0; |
| 1857 | fill_io_buffer(td, io_u->buf, min_write, max_bs); |
Jens Axboe | 5973caf | 2008-05-21 19:52:35 +0200 | [diff] [blame] | 1858 | } |