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 | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 14 | |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 15 | struct io_completion_data { |
| 16 | int nr; /* input */ |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 17 | |
| 18 | int error; /* output */ |
Shaohua Li | 6eaf09d | 2012-09-14 08:49:43 +0200 | [diff] [blame] | 19 | unsigned long bytes_done[DDIR_RWDIR_CNT]; /* output */ |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 20 | struct timeval time; /* output */ |
| 21 | }; |
| 22 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 23 | /* |
Jens Axboe | 7ebd796 | 2012-11-28 21:24:46 +0100 | [diff] [blame] | 24 | * 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] | 25 | * to yet. Used to make sure we cover the entire range in a fair fashion. |
| 26 | */ |
Jens Axboe | aec2de2 | 2008-04-24 12:44:42 +0200 | [diff] [blame] | 27 | static int random_map_free(struct fio_file *f, const unsigned long long block) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 28 | { |
Jens Axboe | 7ebd796 | 2012-11-28 21:24:46 +0100 | [diff] [blame] | 29 | return !axmap_isset(f->io_axmap, block); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 30 | } |
| 31 | |
| 32 | /* |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 33 | * Mark a given offset as used in the map. |
| 34 | */ |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 35 | 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] | 36 | { |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 37 | unsigned int min_bs = td->o.rw_min_bs; |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 38 | struct fio_file *f = io_u->file; |
Jens Axboe | a00735e | 2006-11-03 08:58:08 +0100 | [diff] [blame] | 39 | unsigned long long block; |
Jens Axboe | 51ede0b | 2012-11-22 13:50:29 +0100 | [diff] [blame] | 40 | unsigned int nr_blocks; |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 41 | |
Jens Axboe | b9c5b64 | 2008-02-18 14:13:08 +0100 | [diff] [blame] | 42 | block = (io_u->offset - f->file_offset) / (unsigned long long) min_bs; |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 43 | nr_blocks = (io_u->buflen + min_bs - 1) / min_bs; |
| 44 | |
Jens Axboe | 2ab9e98 | 2012-11-22 15:14:17 +0100 | [diff] [blame] | 45 | if (!(io_u->flags & IO_U_F_BUSY_OK)) |
Jens Axboe | 7ebd796 | 2012-11-28 21:24:46 +0100 | [diff] [blame] | 46 | nr_blocks = axmap_set_nr(f->io_axmap, block, nr_blocks); |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 47 | |
Jens Axboe | 51ede0b | 2012-11-22 13:50:29 +0100 | [diff] [blame] | 48 | if ((nr_blocks * min_bs) < io_u->buflen) |
| 49 | io_u->buflen = nr_blocks * min_bs; |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 50 | } |
| 51 | |
Jens Axboe | 3e3357b | 2008-06-02 09:53:05 +0200 | [diff] [blame] | 52 | static unsigned long long last_block(struct thread_data *td, struct fio_file *f, |
| 53 | enum fio_ddir ddir) |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 54 | { |
| 55 | unsigned long long max_blocks; |
Jens Axboe | d9dd70f | 2008-05-23 12:37:23 +0200 | [diff] [blame] | 56 | unsigned long long max_size; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 57 | |
Jens Axboe | ff58fce | 2010-08-25 12:02:08 +0200 | [diff] [blame] | 58 | assert(ddir_rw(ddir)); |
| 59 | |
Jens Axboe | d9dd70f | 2008-05-23 12:37:23 +0200 | [diff] [blame] | 60 | /* |
| 61 | * Hmm, should we make sure that ->io_size <= ->real_file_size? |
| 62 | */ |
| 63 | max_size = f->io_size; |
| 64 | if (max_size > f->real_file_size) |
| 65 | max_size = f->real_file_size; |
| 66 | |
Steven Noonan | ed33585 | 2012-01-31 13:58:00 +0100 | [diff] [blame] | 67 | if (td->o.zone_range) |
| 68 | max_size = td->o.zone_range; |
| 69 | |
Jens Axboe | 2b7a01d | 2009-03-11 11:00:13 +0100 | [diff] [blame] | 70 | max_blocks = max_size / (unsigned long long) td->o.ba[ddir]; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 71 | if (!max_blocks) |
| 72 | return 0; |
| 73 | |
Jens Axboe | 67778e8 | 2008-05-15 09:20:08 +0200 | [diff] [blame] | 74 | return max_blocks; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 75 | } |
| 76 | |
Jens Axboe | e25839d | 2012-11-06 10:49:42 +0100 | [diff] [blame] | 77 | static int __get_next_rand_offset(struct thread_data *td, struct fio_file *f, |
| 78 | enum fio_ddir ddir, unsigned long long *b) |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 79 | { |
Jens Axboe | 8055e41 | 2012-11-26 08:43:47 +0100 | [diff] [blame] | 80 | unsigned long long r; |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 81 | |
Jens Axboe | 8055e41 | 2012-11-26 08:43:47 +0100 | [diff] [blame] | 82 | if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE) { |
| 83 | unsigned long long rmax, lastb; |
Jens Axboe | 5e0baa7 | 2010-10-20 11:14:57 +0200 | [diff] [blame] | 84 | |
Jens Axboe | 8055e41 | 2012-11-26 08:43:47 +0100 | [diff] [blame] | 85 | lastb = last_block(td, f, ddir); |
| 86 | if (!lastb) |
| 87 | return 1; |
Jens Axboe | 15b8772 | 2011-10-12 09:42:33 +0200 | [diff] [blame] | 88 | |
Jens Axboe | 8055e41 | 2012-11-26 08:43:47 +0100 | [diff] [blame] | 89 | rmax = td->o.use_os_rand ? OS_RAND_MAX : FRAND_MAX; |
| 90 | |
| 91 | if (td->o.use_os_rand) { |
| 92 | rmax = OS_RAND_MAX; |
| 93 | r = os_random_long(&td->random_state); |
| 94 | } else { |
| 95 | rmax = FRAND_MAX; |
| 96 | r = __rand(&td->__random_state); |
| 97 | } |
| 98 | |
| 99 | dprint(FD_RANDOM, "off rand %llu\n", r); |
| 100 | |
| 101 | *b = (lastb - 1) * (r / ((unsigned long long) rmax + 1.0)); |
Jens Axboe | 51ede0b | 2012-11-22 13:50:29 +0100 | [diff] [blame] | 102 | } else { |
Jens Axboe | 8055e41 | 2012-11-26 08:43:47 +0100 | [diff] [blame] | 103 | uint64_t off = 0; |
| 104 | |
| 105 | if (lfsr_next(&f->lfsr, &off)) |
| 106 | return 1; |
| 107 | |
| 108 | *b = off; |
Jens Axboe | 51ede0b | 2012-11-22 13:50:29 +0100 | [diff] [blame] | 109 | } |
Jens Axboe | 2615cc4 | 2011-03-28 09:35:09 +0200 | [diff] [blame] | 110 | |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 111 | /* |
Jens Axboe | 51ede0b | 2012-11-22 13:50:29 +0100 | [diff] [blame] | 112 | * if we are not maintaining a random map, we are done. |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 113 | */ |
Jens Axboe | 51ede0b | 2012-11-22 13:50:29 +0100 | [diff] [blame] | 114 | if (!file_randommap(td, f)) |
| 115 | goto ret; |
Jens Axboe | 43c63a7 | 2007-05-21 13:23:30 +0200 | [diff] [blame] | 116 | |
| 117 | /* |
Jens Axboe | 51ede0b | 2012-11-22 13:50:29 +0100 | [diff] [blame] | 118 | * calculate map offset and check if it's free |
Jens Axboe | 43c63a7 | 2007-05-21 13:23:30 +0200 | [diff] [blame] | 119 | */ |
Jens Axboe | 51ede0b | 2012-11-22 13:50:29 +0100 | [diff] [blame] | 120 | if (random_map_free(f, *b)) |
| 121 | goto ret; |
| 122 | |
| 123 | dprint(FD_RANDOM, "get_next_rand_offset: offset %llu busy\n", *b); |
| 124 | |
Jens Axboe | 7ebd796 | 2012-11-28 21:24:46 +0100 | [diff] [blame] | 125 | *b = axmap_next_free(f->io_axmap, *b); |
Jens Axboe | 51ede0b | 2012-11-22 13:50:29 +0100 | [diff] [blame] | 126 | if (*b == (uint64_t) -1ULL) |
| 127 | return 1; |
Jens Axboe | 0ce8b11 | 2011-01-27 22:25:29 +0100 | [diff] [blame] | 128 | ret: |
| 129 | return 0; |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 130 | } |
| 131 | |
Jens Axboe | 925fee3 | 2012-11-06 13:50:32 +0100 | [diff] [blame] | 132 | static int __get_next_rand_offset_zipf(struct thread_data *td, |
| 133 | struct fio_file *f, enum fio_ddir ddir, |
| 134 | unsigned long long *b) |
Jens Axboe | e25839d | 2012-11-06 10:49:42 +0100 | [diff] [blame] | 135 | { |
Jens Axboe | 9c6f631 | 2012-11-07 09:15:45 +0100 | [diff] [blame] | 136 | *b = zipf_next(&f->zipf); |
Jens Axboe | e25839d | 2012-11-06 10:49:42 +0100 | [diff] [blame] | 137 | return 0; |
| 138 | } |
| 139 | |
Jens Axboe | 925fee3 | 2012-11-06 13:50:32 +0100 | [diff] [blame] | 140 | static int __get_next_rand_offset_pareto(struct thread_data *td, |
| 141 | struct fio_file *f, enum fio_ddir ddir, |
| 142 | unsigned long long *b) |
| 143 | { |
Jens Axboe | 9c6f631 | 2012-11-07 09:15:45 +0100 | [diff] [blame] | 144 | *b = pareto_next(&f->zipf); |
Jens Axboe | 925fee3 | 2012-11-06 13:50:32 +0100 | [diff] [blame] | 145 | return 0; |
| 146 | } |
| 147 | |
Jens Axboe | e25839d | 2012-11-06 10:49:42 +0100 | [diff] [blame] | 148 | static int get_next_rand_offset(struct thread_data *td, struct fio_file *f, |
| 149 | enum fio_ddir ddir, unsigned long long *b) |
| 150 | { |
| 151 | if (td->o.random_distribution == FIO_RAND_DIST_RANDOM) |
| 152 | return __get_next_rand_offset(td, f, ddir, b); |
| 153 | else if (td->o.random_distribution == FIO_RAND_DIST_ZIPF) |
| 154 | return __get_next_rand_offset_zipf(td, f, ddir, b); |
Jens Axboe | 925fee3 | 2012-11-06 13:50:32 +0100 | [diff] [blame] | 155 | else if (td->o.random_distribution == FIO_RAND_DIST_PARETO) |
| 156 | return __get_next_rand_offset_pareto(td, f, ddir, b); |
Jens Axboe | e25839d | 2012-11-06 10:49:42 +0100 | [diff] [blame] | 157 | |
| 158 | log_err("fio: unknown random distribution: %d\n", td->o.random_distribution); |
| 159 | return 1; |
| 160 | } |
| 161 | |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 162 | static int get_next_rand_block(struct thread_data *td, struct fio_file *f, |
| 163 | enum fio_ddir ddir, unsigned long long *b) |
| 164 | { |
Daniel Ehrenberg | c04e466 | 2012-03-16 18:54:15 +0100 | [diff] [blame] | 165 | if (!get_next_rand_offset(td, f, ddir, b)) |
| 166 | return 0; |
| 167 | |
| 168 | if (td->o.time_based) { |
| 169 | fio_file_reset(f); |
| 170 | if (!get_next_rand_offset(td, f, ddir, b)) |
| 171 | return 0; |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 172 | } |
| 173 | |
Daniel Ehrenberg | c04e466 | 2012-03-16 18:54:15 +0100 | [diff] [blame] | 174 | dprint(FD_IO, "%s: rand offset failed, last=%llu, size=%llu\n", |
| 175 | f->file_name, f->last_pos, f->real_file_size); |
| 176 | return 1; |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 177 | } |
| 178 | |
Jens Axboe | 37cf9e3 | 2012-03-17 12:54:30 +0100 | [diff] [blame] | 179 | static int get_next_seq_offset(struct thread_data *td, struct fio_file *f, |
| 180 | enum fio_ddir ddir, unsigned long long *offset) |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 181 | { |
Jens Axboe | ff58fce | 2010-08-25 12:02:08 +0200 | [diff] [blame] | 182 | assert(ddir_rw(ddir)); |
| 183 | |
Dan Ehrenberg | ce95d65 | 2012-08-16 08:58:21 +0200 | [diff] [blame] | 184 | 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] | 185 | f->last_pos = f->last_pos - f->io_size; |
| 186 | |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 187 | if (f->last_pos < f->real_file_size) { |
Jens Axboe | a66da7a | 2011-08-31 13:14:12 -0600 | [diff] [blame] | 188 | unsigned long long pos; |
Jens Axboe | 059b080 | 2011-08-25 09:09:37 +0200 | [diff] [blame] | 189 | |
Jens Axboe | a66da7a | 2011-08-31 13:14:12 -0600 | [diff] [blame] | 190 | if (f->last_pos == f->file_offset && td->o.ddir_seq_add < 0) |
| 191 | f->last_pos = f->real_file_size; |
| 192 | |
| 193 | pos = f->last_pos - f->file_offset; |
Jens Axboe | 059b080 | 2011-08-25 09:09:37 +0200 | [diff] [blame] | 194 | if (pos) |
| 195 | pos += td->o.ddir_seq_add; |
| 196 | |
Jens Axboe | 37cf9e3 | 2012-03-17 12:54:30 +0100 | [diff] [blame] | 197 | *offset = pos; |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 198 | return 0; |
| 199 | } |
| 200 | |
| 201 | return 1; |
| 202 | } |
| 203 | |
| 204 | static int get_next_block(struct thread_data *td, struct io_u *io_u, |
Jens Axboe | 37cf9e3 | 2012-03-17 12:54:30 +0100 | [diff] [blame] | 205 | enum fio_ddir ddir, int rw_seq) |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 206 | { |
| 207 | struct fio_file *f = io_u->file; |
Jens Axboe | 37cf9e3 | 2012-03-17 12:54:30 +0100 | [diff] [blame] | 208 | unsigned long long b, offset; |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 209 | int ret; |
| 210 | |
Jens Axboe | ff58fce | 2010-08-25 12:02:08 +0200 | [diff] [blame] | 211 | assert(ddir_rw(ddir)); |
| 212 | |
Jens Axboe | 37cf9e3 | 2012-03-17 12:54:30 +0100 | [diff] [blame] | 213 | b = offset = -1ULL; |
| 214 | |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 215 | if (rw_seq) { |
| 216 | if (td_random(td)) |
Jens Axboe | 37cf9e3 | 2012-03-17 12:54:30 +0100 | [diff] [blame] | 217 | ret = get_next_rand_block(td, f, ddir, &b); |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 218 | else |
Jens Axboe | 37cf9e3 | 2012-03-17 12:54:30 +0100 | [diff] [blame] | 219 | ret = get_next_seq_offset(td, f, ddir, &offset); |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 220 | } else { |
| 221 | io_u->flags |= IO_U_F_BUSY_OK; |
| 222 | |
| 223 | if (td->o.rw_seq == RW_SEQ_SEQ) { |
Jens Axboe | 37cf9e3 | 2012-03-17 12:54:30 +0100 | [diff] [blame] | 224 | ret = get_next_seq_offset(td, f, ddir, &offset); |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 225 | if (ret) |
Jens Axboe | 37cf9e3 | 2012-03-17 12:54:30 +0100 | [diff] [blame] | 226 | ret = get_next_rand_block(td, f, ddir, &b); |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 227 | } else if (td->o.rw_seq == RW_SEQ_IDENT) { |
| 228 | if (f->last_start != -1ULL) |
Jens Axboe | 37cf9e3 | 2012-03-17 12:54:30 +0100 | [diff] [blame] | 229 | offset = f->last_start - f->file_offset; |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 230 | else |
Jens Axboe | 37cf9e3 | 2012-03-17 12:54:30 +0100 | [diff] [blame] | 231 | offset = 0; |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 232 | ret = 0; |
| 233 | } else { |
| 234 | log_err("fio: unknown rw_seq=%d\n", td->o.rw_seq); |
| 235 | ret = 1; |
| 236 | } |
| 237 | } |
| 238 | |
Jens Axboe | 37cf9e3 | 2012-03-17 12:54:30 +0100 | [diff] [blame] | 239 | if (!ret) { |
| 240 | if (offset != -1ULL) |
| 241 | io_u->offset = offset; |
| 242 | else if (b != -1ULL) |
| 243 | io_u->offset = b * td->o.ba[ddir]; |
| 244 | else { |
Jens Axboe | 51ede0b | 2012-11-22 13:50:29 +0100 | [diff] [blame] | 245 | log_err("fio: bug in offset generation: offset=%llu, b=%llu\n", |
| 246 | offset, b); |
Jens Axboe | 37cf9e3 | 2012-03-17 12:54:30 +0100 | [diff] [blame] | 247 | ret = 1; |
| 248 | } |
| 249 | } |
| 250 | |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 251 | return ret; |
| 252 | } |
| 253 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 254 | /* |
| 255 | * For random io, generate a random new block and see if it's used. Repeat |
| 256 | * until we find a free one. For sequential io, just return the end of |
| 257 | * the last io issued. |
| 258 | */ |
Jens Axboe | 15dc193 | 2010-03-05 10:59:06 +0100 | [diff] [blame] | 259 | static int __get_next_offset(struct thread_data *td, struct io_u *io_u) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 260 | { |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 261 | struct fio_file *f = io_u->file; |
Jens Axboe | 4ba6613 | 2008-02-05 10:05:50 +0100 | [diff] [blame] | 262 | enum fio_ddir ddir = io_u->ddir; |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 263 | int rw_seq_hit = 0; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 264 | |
Jens Axboe | ff58fce | 2010-08-25 12:02:08 +0200 | [diff] [blame] | 265 | assert(ddir_rw(ddir)); |
| 266 | |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 267 | if (td->o.ddir_seq_nr && !--td->ddir_seq_nr) { |
| 268 | rw_seq_hit = 1; |
Jens Axboe | 5736c10 | 2010-07-20 12:03:25 -0600 | [diff] [blame] | 269 | td->ddir_seq_nr = td->o.ddir_seq_nr; |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 270 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 271 | |
Jens Axboe | 37cf9e3 | 2012-03-17 12:54:30 +0100 | [diff] [blame] | 272 | if (get_next_block(td, io_u, ddir, rw_seq_hit)) |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 273 | return 1; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 274 | |
Jens Axboe | 009bd84 | 2008-05-15 10:19:46 +0200 | [diff] [blame] | 275 | if (io_u->offset >= f->io_size) { |
| 276 | dprint(FD_IO, "get_next_offset: offset %llu >= io_size %llu\n", |
| 277 | io_u->offset, f->io_size); |
| 278 | return 1; |
| 279 | } |
| 280 | |
| 281 | io_u->offset += f->file_offset; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 282 | if (io_u->offset >= f->real_file_size) { |
| 283 | dprint(FD_IO, "get_next_offset: offset %llu >= size %llu\n", |
| 284 | io_u->offset, f->real_file_size); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 285 | return 1; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 286 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 287 | |
| 288 | return 0; |
| 289 | } |
| 290 | |
Jens Axboe | 15dc193 | 2010-03-05 10:59:06 +0100 | [diff] [blame] | 291 | static int get_next_offset(struct thread_data *td, struct io_u *io_u) |
| 292 | { |
Jens Axboe | 7eb3657 | 2010-03-08 13:58:49 +0100 | [diff] [blame] | 293 | struct prof_io_ops *ops = &td->prof_io_ops; |
| 294 | |
| 295 | if (ops->fill_io_u_off) |
| 296 | return ops->fill_io_u_off(td, io_u); |
Jens Axboe | 15dc193 | 2010-03-05 10:59:06 +0100 | [diff] [blame] | 297 | |
| 298 | return __get_next_offset(td, io_u); |
| 299 | } |
| 300 | |
Jens Axboe | 7994412 | 2011-05-24 11:26:16 +0200 | [diff] [blame] | 301 | static inline int io_u_fits(struct thread_data *td, struct io_u *io_u, |
| 302 | unsigned int buflen) |
| 303 | { |
| 304 | struct fio_file *f = io_u->file; |
| 305 | |
Dan Ehrenberg | ce95d65 | 2012-08-16 08:58:21 +0200 | [diff] [blame] | 306 | return io_u->offset + buflen <= f->io_size + get_start_offset(td); |
Jens Axboe | 7994412 | 2011-05-24 11:26:16 +0200 | [diff] [blame] | 307 | } |
| 308 | |
Jens Axboe | 15dc193 | 2010-03-05 10:59:06 +0100 | [diff] [blame] | 309 | static unsigned int __get_next_buflen(struct thread_data *td, struct io_u *io_u) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 310 | { |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 311 | const int ddir = io_u->ddir; |
Jens Axboe | 24d23ca | 2012-11-13 08:31:24 -0700 | [diff] [blame] | 312 | unsigned int buflen = 0; |
Jens Axboe | f3059de | 2008-06-11 15:37:32 +0200 | [diff] [blame] | 313 | unsigned int minbs, maxbs; |
Jens Axboe | 1294c3e | 2011-05-11 08:15:18 +0200 | [diff] [blame] | 314 | unsigned long r, rand_max; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 315 | |
Jens Axboe | ff58fce | 2010-08-25 12:02:08 +0200 | [diff] [blame] | 316 | assert(ddir_rw(ddir)); |
| 317 | |
Jens Axboe | f3059de | 2008-06-11 15:37:32 +0200 | [diff] [blame] | 318 | minbs = td->o.min_bs[ddir]; |
| 319 | maxbs = td->o.max_bs[ddir]; |
| 320 | |
Jens Axboe | 7994412 | 2011-05-24 11:26:16 +0200 | [diff] [blame] | 321 | if (minbs == maxbs) |
| 322 | return minbs; |
| 323 | |
Jens Axboe | 52c5802 | 2012-02-06 21:58:56 +0100 | [diff] [blame] | 324 | /* |
| 325 | * If we can't satisfy the min block size from here, then fail |
| 326 | */ |
| 327 | if (!io_u_fits(td, io_u, minbs)) |
| 328 | return 0; |
| 329 | |
Jens Axboe | 4c07ad8 | 2011-03-28 09:51:09 +0200 | [diff] [blame] | 330 | if (td->o.use_os_rand) |
| 331 | rand_max = OS_RAND_MAX; |
| 332 | else |
| 333 | rand_max = FRAND_MAX; |
| 334 | |
Jens Axboe | 7994412 | 2011-05-24 11:26:16 +0200 | [diff] [blame] | 335 | do { |
Jens Axboe | 4c07ad8 | 2011-03-28 09:51:09 +0200 | [diff] [blame] | 336 | if (td->o.use_os_rand) |
| 337 | r = os_random_long(&td->bsrange_state); |
| 338 | else |
| 339 | r = __rand(&td->__bsrange_state); |
| 340 | |
Jens Axboe | 720e84a | 2009-04-21 08:29:55 +0200 | [diff] [blame] | 341 | if (!td->o.bssplit_nr[ddir]) { |
Jens Axboe | f3059de | 2008-06-11 15:37:32 +0200 | [diff] [blame] | 342 | buflen = 1 + (unsigned int) ((double) maxbs * |
Jens Axboe | 4c07ad8 | 2011-03-28 09:51:09 +0200 | [diff] [blame] | 343 | (r / (rand_max + 1.0))); |
Jens Axboe | f3059de | 2008-06-11 15:37:32 +0200 | [diff] [blame] | 344 | if (buflen < minbs) |
| 345 | buflen = minbs; |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 346 | } else { |
Jens Axboe | 564ca97 | 2007-12-14 12:21:19 +0100 | [diff] [blame] | 347 | long perc = 0; |
| 348 | unsigned int i; |
| 349 | |
Jens Axboe | 720e84a | 2009-04-21 08:29:55 +0200 | [diff] [blame] | 350 | for (i = 0; i < td->o.bssplit_nr[ddir]; i++) { |
| 351 | struct bssplit *bsp = &td->o.bssplit[ddir][i]; |
Jens Axboe | 564ca97 | 2007-12-14 12:21:19 +0100 | [diff] [blame] | 352 | |
| 353 | buflen = bsp->bs; |
| 354 | perc += bsp->perc; |
Jens Axboe | 7994412 | 2011-05-24 11:26:16 +0200 | [diff] [blame] | 355 | if ((r <= ((rand_max / 100L) * perc)) && |
| 356 | io_u_fits(td, io_u, buflen)) |
Jens Axboe | 564ca97 | 2007-12-14 12:21:19 +0100 | [diff] [blame] | 357 | break; |
| 358 | } |
| 359 | } |
Jens Axboe | 7994412 | 2011-05-24 11:26:16 +0200 | [diff] [blame] | 360 | |
Jens Axboe | f3059de | 2008-06-11 15:37:32 +0200 | [diff] [blame] | 361 | if (!td->o.bs_unaligned && is_power_of_2(minbs)) |
| 362 | buflen = (buflen + minbs - 1) & ~(minbs - 1); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 363 | |
Jens Axboe | 7994412 | 2011-05-24 11:26:16 +0200 | [diff] [blame] | 364 | } while (!io_u_fits(td, io_u, buflen)); |
Jens Axboe | 6a5e688 | 2007-07-26 10:47:51 +0200 | [diff] [blame] | 365 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 366 | return buflen; |
| 367 | } |
| 368 | |
Jens Axboe | 15dc193 | 2010-03-05 10:59:06 +0100 | [diff] [blame] | 369 | static unsigned int get_next_buflen(struct thread_data *td, struct io_u *io_u) |
| 370 | { |
Jens Axboe | 7eb3657 | 2010-03-08 13:58:49 +0100 | [diff] [blame] | 371 | struct prof_io_ops *ops = &td->prof_io_ops; |
| 372 | |
| 373 | if (ops->fill_io_u_size) |
| 374 | return ops->fill_io_u_size(td, io_u); |
Jens Axboe | 15dc193 | 2010-03-05 10:59:06 +0100 | [diff] [blame] | 375 | |
| 376 | return __get_next_buflen(td, io_u); |
| 377 | } |
| 378 | |
Jens Axboe | afe24a5 | 2007-03-16 20:27:27 +0100 | [diff] [blame] | 379 | static void set_rwmix_bytes(struct thread_data *td) |
| 380 | { |
Jens Axboe | afe24a5 | 2007-03-16 20:27:27 +0100 | [diff] [blame] | 381 | unsigned int diff; |
| 382 | |
| 383 | /* |
| 384 | * we do time or byte based switch. this is needed because |
| 385 | * buffered writes may issue a lot quicker than they complete, |
| 386 | * whereas reads do not. |
| 387 | */ |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 388 | diff = td->o.rwmix[td->rwmix_ddir ^ 1]; |
Jens Axboe | 04c540d | 2008-05-28 10:35:26 +0200 | [diff] [blame] | 389 | td->rwmix_issues = (td->io_issues[td->rwmix_ddir] * diff) / 100; |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 390 | } |
| 391 | |
| 392 | static inline enum fio_ddir get_rand_ddir(struct thread_data *td) |
| 393 | { |
| 394 | unsigned int v; |
Jens Axboe | 1294c3e | 2011-05-11 08:15:18 +0200 | [diff] [blame] | 395 | unsigned long r; |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 396 | |
Jens Axboe | 4c07ad8 | 2011-03-28 09:51:09 +0200 | [diff] [blame] | 397 | if (td->o.use_os_rand) { |
| 398 | r = os_random_long(&td->rwmix_state); |
| 399 | v = 1 + (int) (100.0 * (r / (OS_RAND_MAX + 1.0))); |
| 400 | } else { |
| 401 | r = __rand(&td->__rwmix_state); |
| 402 | v = 1 + (int) (100.0 * (r / (FRAND_MAX + 1.0))); |
| 403 | } |
| 404 | |
Jens Axboe | 04c540d | 2008-05-28 10:35:26 +0200 | [diff] [blame] | 405 | if (v <= td->o.rwmix[DDIR_READ]) |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 406 | return DDIR_READ; |
| 407 | |
| 408 | return DDIR_WRITE; |
Jens Axboe | afe24a5 | 2007-03-16 20:27:27 +0100 | [diff] [blame] | 409 | } |
| 410 | |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 411 | static enum fio_ddir rate_ddir(struct thread_data *td, enum fio_ddir ddir) |
| 412 | { |
| 413 | enum fio_ddir odir = ddir ^ 1; |
| 414 | struct timeval t; |
| 415 | long usec; |
| 416 | |
Jens Axboe | ff58fce | 2010-08-25 12:02:08 +0200 | [diff] [blame] | 417 | assert(ddir_rw(ddir)); |
| 418 | |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 419 | if (td->rate_pending_usleep[ddir] <= 0) |
| 420 | return ddir; |
| 421 | |
| 422 | /* |
| 423 | * We have too much pending sleep in this direction. See if we |
| 424 | * should switch. |
| 425 | */ |
| 426 | if (td_rw(td)) { |
| 427 | /* |
| 428 | * Other direction does not have too much pending, switch |
| 429 | */ |
| 430 | if (td->rate_pending_usleep[odir] < 100000) |
| 431 | return odir; |
| 432 | |
| 433 | /* |
| 434 | * Both directions have pending sleep. Sleep the minimum time |
| 435 | * and deduct from both. |
| 436 | */ |
| 437 | if (td->rate_pending_usleep[ddir] <= |
| 438 | td->rate_pending_usleep[odir]) { |
| 439 | usec = td->rate_pending_usleep[ddir]; |
| 440 | } else { |
| 441 | usec = td->rate_pending_usleep[odir]; |
| 442 | ddir = odir; |
| 443 | } |
| 444 | } else |
| 445 | usec = td->rate_pending_usleep[ddir]; |
| 446 | |
Jens Axboe | 78c1eda | 2011-08-30 15:34:14 -0600 | [diff] [blame] | 447 | /* |
| 448 | * We are going to sleep, ensure that we flush anything pending as |
Ryan Marchand | 422f9e4 | 2012-01-31 14:05:32 +0100 | [diff] [blame] | 449 | * not to skew our latency numbers. |
| 450 | * |
| 451 | * Changed to only monitor 'in flight' requests here instead of the |
| 452 | * td->cur_depth, b/c td->cur_depth does not accurately represent |
| 453 | * io's that have been actually submitted to an async engine, |
| 454 | * and cur_depth is meaningless for sync engines. |
Jens Axboe | 78c1eda | 2011-08-30 15:34:14 -0600 | [diff] [blame] | 455 | */ |
Ryan Marchand | 422f9e4 | 2012-01-31 14:05:32 +0100 | [diff] [blame] | 456 | if (td->io_u_in_flight) { |
Jens Axboe | 78c1eda | 2011-08-30 15:34:14 -0600 | [diff] [blame] | 457 | int fio_unused ret; |
| 458 | |
Ryan Marchand | 422f9e4 | 2012-01-31 14:05:32 +0100 | [diff] [blame] | 459 | ret = io_u_queued_complete(td, td->io_u_in_flight, NULL); |
Jens Axboe | 78c1eda | 2011-08-30 15:34:14 -0600 | [diff] [blame] | 460 | } |
| 461 | |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 462 | fio_gettime(&t, NULL); |
| 463 | usec_sleep(td, usec); |
| 464 | usec = utime_since_now(&t); |
| 465 | |
| 466 | td->rate_pending_usleep[ddir] -= usec; |
| 467 | |
| 468 | odir = ddir ^ 1; |
| 469 | if (td_rw(td) && __should_check_rate(td, odir)) |
| 470 | td->rate_pending_usleep[odir] -= usec; |
Jens Axboe | 0b9d69e | 2009-09-11 22:29:54 +0200 | [diff] [blame] | 471 | |
Shaohua Li | 6eaf09d | 2012-09-14 08:49:43 +0200 | [diff] [blame] | 472 | if (ddir_trim(ddir)) |
| 473 | return ddir; |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 474 | return ddir; |
| 475 | } |
| 476 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 477 | /* |
| 478 | * Return the data direction for the next io_u. If the job is a |
| 479 | * mixed read/write workload, check the rwmix cycle and switch if |
| 480 | * necessary. |
| 481 | */ |
Jens Axboe | 1e97cce | 2006-12-05 11:44:16 +0100 | [diff] [blame] | 482 | static enum fio_ddir get_rw_ddir(struct thread_data *td) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 483 | { |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 484 | enum fio_ddir ddir; |
| 485 | |
Jens Axboe | 5f9099e | 2009-06-16 22:40:26 +0200 | [diff] [blame] | 486 | /* |
| 487 | * see if it's time to fsync |
| 488 | */ |
| 489 | if (td->o.fsync_blocks && |
| 490 | !(td->io_issues[DDIR_WRITE] % td->o.fsync_blocks) && |
| 491 | td->io_issues[DDIR_WRITE] && should_fsync(td)) |
| 492 | return DDIR_SYNC; |
| 493 | |
| 494 | /* |
| 495 | * see if it's time to fdatasync |
| 496 | */ |
| 497 | if (td->o.fdatasync_blocks && |
| 498 | !(td->io_issues[DDIR_WRITE] % td->o.fdatasync_blocks) && |
| 499 | td->io_issues[DDIR_WRITE] && should_fsync(td)) |
| 500 | return DDIR_DATASYNC; |
| 501 | |
Jens Axboe | 44f2969 | 2010-03-09 20:09:44 +0100 | [diff] [blame] | 502 | /* |
| 503 | * see if it's time to sync_file_range |
| 504 | */ |
| 505 | if (td->sync_file_range_nr && |
| 506 | !(td->io_issues[DDIR_WRITE] % td->sync_file_range_nr) && |
| 507 | td->io_issues[DDIR_WRITE] && should_fsync(td)) |
| 508 | return DDIR_SYNC_FILE_RANGE; |
| 509 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 510 | if (td_rw(td)) { |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 511 | /* |
| 512 | * Check if it's time to seed a new data direction. |
| 513 | */ |
Jens Axboe | e492866 | 2008-04-07 09:19:46 +0200 | [diff] [blame] | 514 | if (td->io_issues[td->rwmix_ddir] >= td->rwmix_issues) { |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 515 | /* |
| 516 | * Put a top limit on how many bytes we do for |
| 517 | * one data direction, to avoid overflowing the |
| 518 | * ranges too much |
| 519 | */ |
| 520 | ddir = get_rand_ddir(td); |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 521 | |
| 522 | if (ddir != td->rwmix_ddir) |
| 523 | set_rwmix_bytes(td); |
| 524 | |
| 525 | td->rwmix_ddir = ddir; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 526 | } |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 527 | ddir = td->rwmix_ddir; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 528 | } else if (td_read(td)) |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 529 | ddir = DDIR_READ; |
Shaohua Li | 6eaf09d | 2012-09-14 08:49:43 +0200 | [diff] [blame] | 530 | else if (td_write(td)) |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 531 | ddir = DDIR_WRITE; |
Shaohua Li | 6eaf09d | 2012-09-14 08:49:43 +0200 | [diff] [blame] | 532 | else |
| 533 | ddir = DDIR_TRIM; |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 534 | |
| 535 | td->rwmix_ddir = rate_ddir(td, ddir); |
| 536 | return td->rwmix_ddir; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 537 | } |
| 538 | |
Jens Axboe | 1ef2b6b | 2010-10-08 15:07:01 +0200 | [diff] [blame] | 539 | static void set_rw_ddir(struct thread_data *td, struct io_u *io_u) |
| 540 | { |
| 541 | io_u->ddir = get_rw_ddir(td); |
| 542 | |
| 543 | if (io_u->ddir == DDIR_WRITE && (td->io_ops->flags & FIO_BARRIER) && |
| 544 | td->o.barrier_blocks && |
| 545 | !(td->io_issues[DDIR_WRITE] % td->o.barrier_blocks) && |
| 546 | td->io_issues[DDIR_WRITE]) |
| 547 | io_u->flags |= IO_U_F_BARRIER; |
| 548 | } |
| 549 | |
Jens Axboe | e8462bd | 2009-07-06 12:59:04 +0200 | [diff] [blame] | 550 | void put_file_log(struct thread_data *td, struct fio_file *f) |
Jens Axboe | 60f2c65 | 2008-05-16 12:31:36 +0200 | [diff] [blame] | 551 | { |
| 552 | int ret = put_file(td, f); |
| 553 | |
| 554 | if (ret) |
| 555 | td_verror(td, ret, "file close"); |
| 556 | } |
| 557 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 558 | void put_io_u(struct thread_data *td, struct io_u *io_u) |
| 559 | { |
Jens Axboe | e8462bd | 2009-07-06 12:59:04 +0200 | [diff] [blame] | 560 | td_io_u_lock(td); |
| 561 | |
Steven Lang | d7ee2a7 | 2011-10-26 09:46:50 +0200 | [diff] [blame] | 562 | if (io_u->file && !(io_u->flags & IO_U_F_FREE_DEF)) |
Jens Axboe | 60f2c65 | 2008-05-16 12:31:36 +0200 | [diff] [blame] | 563 | put_file_log(td, io_u->file); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 564 | io_u->file = NULL; |
Steven Lang | d7ee2a7 | 2011-10-26 09:46:50 +0200 | [diff] [blame] | 565 | io_u->flags &= ~IO_U_F_FREE_DEF; |
| 566 | io_u->flags |= IO_U_F_FREE; |
| 567 | |
Radha Ramachandran | 0c41214 | 2009-11-03 21:45:31 +0100 | [diff] [blame] | 568 | if (io_u->flags & IO_U_F_IN_CUR_DEPTH) |
| 569 | td->cur_depth--; |
Jens Axboe | e8462bd | 2009-07-06 12:59:04 +0200 | [diff] [blame] | 570 | flist_del_init(&io_u->list); |
Jens Axboe | 01743ee | 2008-06-02 12:19:19 +0200 | [diff] [blame] | 571 | flist_add(&io_u->list, &td->io_u_freelist); |
Jens Axboe | e8462bd | 2009-07-06 12:59:04 +0200 | [diff] [blame] | 572 | td_io_u_unlock(td); |
| 573 | td_io_u_free_notify(td); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 574 | } |
| 575 | |
Radha Ramachandran | f2bba18 | 2009-06-15 08:40:16 +0200 | [diff] [blame] | 576 | void clear_io_u(struct thread_data *td, struct io_u *io_u) |
| 577 | { |
| 578 | io_u->flags &= ~IO_U_F_FLIGHT; |
| 579 | put_io_u(td, io_u); |
| 580 | } |
| 581 | |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 582 | void requeue_io_u(struct thread_data *td, struct io_u **io_u) |
| 583 | { |
| 584 | struct io_u *__io_u = *io_u; |
| 585 | |
Jens Axboe | 465221b | 2008-05-30 22:07:49 +0200 | [diff] [blame] | 586 | dprint(FD_IO, "requeue %p\n", __io_u); |
| 587 | |
Jens Axboe | e8462bd | 2009-07-06 12:59:04 +0200 | [diff] [blame] | 588 | td_io_u_lock(td); |
| 589 | |
Jens Axboe | 4d2e0f4 | 2007-02-24 13:31:57 +0100 | [diff] [blame] | 590 | __io_u->flags |= IO_U_F_FREE; |
Jens Axboe | ff58fce | 2010-08-25 12:02:08 +0200 | [diff] [blame] | 591 | if ((__io_u->flags & IO_U_F_FLIGHT) && ddir_rw(__io_u->ddir)) |
Jens Axboe | e4f54ad | 2008-02-04 10:56:07 +0100 | [diff] [blame] | 592 | td->io_issues[__io_u->ddir]--; |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 593 | |
Jens Axboe | 4d2e0f4 | 2007-02-24 13:31:57 +0100 | [diff] [blame] | 594 | __io_u->flags &= ~IO_U_F_FLIGHT; |
Radha Ramachandran | 0c41214 | 2009-11-03 21:45:31 +0100 | [diff] [blame] | 595 | if (__io_u->flags & IO_U_F_IN_CUR_DEPTH) |
| 596 | td->cur_depth--; |
Jens Axboe | 01743ee | 2008-06-02 12:19:19 +0200 | [diff] [blame] | 597 | flist_del(&__io_u->list); |
| 598 | flist_add_tail(&__io_u->list, &td->io_u_requeues); |
Jens Axboe | e8462bd | 2009-07-06 12:59:04 +0200 | [diff] [blame] | 599 | td_io_u_unlock(td); |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 600 | *io_u = NULL; |
| 601 | } |
| 602 | |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 603 | 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] | 604 | { |
Jens Axboe | b4c5e1a | 2007-10-25 18:44:45 +0200 | [diff] [blame] | 605 | if (td->io_ops->flags & FIO_NOIO) |
| 606 | goto out; |
| 607 | |
Jens Axboe | 1ef2b6b | 2010-10-08 15:07:01 +0200 | [diff] [blame] | 608 | set_rw_ddir(td, io_u); |
Jens Axboe | a00735e | 2006-11-03 08:58:08 +0100 | [diff] [blame] | 609 | |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 610 | /* |
Jens Axboe | ff58fce | 2010-08-25 12:02:08 +0200 | [diff] [blame] | 611 | * fsync() or fdatasync() or trim etc, we are done |
Jens Axboe | 5f9099e | 2009-06-16 22:40:26 +0200 | [diff] [blame] | 612 | */ |
Jens Axboe | ff58fce | 2010-08-25 12:02:08 +0200 | [diff] [blame] | 613 | if (!ddir_rw(io_u->ddir)) |
Jens Axboe | 5f9099e | 2009-06-16 22:40:26 +0200 | [diff] [blame] | 614 | goto out; |
| 615 | |
| 616 | /* |
Jens Axboe | 48f5abd | 2007-07-20 13:25:04 +0200 | [diff] [blame] | 617 | * See if it's time to switch to a new zone |
| 618 | */ |
Jens Axboe | 13af05a | 2012-02-11 09:04:02 +0100 | [diff] [blame] | 619 | if (td->zone_bytes >= td->o.zone_size && td->o.zone_skip) { |
Jens Axboe | 48f5abd | 2007-07-20 13:25:04 +0200 | [diff] [blame] | 620 | td->zone_bytes = 0; |
Steven Noonan | ed33585 | 2012-01-31 13:58:00 +0100 | [diff] [blame] | 621 | io_u->file->file_offset += td->o.zone_range + td->o.zone_skip; |
| 622 | io_u->file->last_pos = io_u->file->file_offset; |
Jens Axboe | 48f5abd | 2007-07-20 13:25:04 +0200 | [diff] [blame] | 623 | td->io_skip_bytes += td->o.zone_skip; |
| 624 | } |
| 625 | |
| 626 | /* |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 627 | * No log, let the seq/rand engine retrieve the next buflen and |
| 628 | * position. |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 629 | */ |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 630 | if (get_next_offset(td, io_u)) { |
| 631 | dprint(FD_IO, "io_u %p, failed getting offset\n", io_u); |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 632 | return 1; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 633 | } |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 634 | |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 635 | io_u->buflen = get_next_buflen(td, io_u); |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 636 | if (!io_u->buflen) { |
| 637 | dprint(FD_IO, "io_u %p, failed getting buflen\n", io_u); |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 638 | return 1; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 639 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 640 | |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 641 | if (io_u->offset + io_u->buflen > io_u->file->real_file_size) { |
| 642 | dprint(FD_IO, "io_u %p, offset too large\n", io_u); |
Jens Axboe | 4ba6613 | 2008-02-05 10:05:50 +0100 | [diff] [blame] | 643 | dprint(FD_IO, " off=%llu/%lu > %llu\n", io_u->offset, |
| 644 | io_u->buflen, io_u->file->real_file_size); |
Jens Axboe | 6a5e688 | 2007-07-26 10:47:51 +0200 | [diff] [blame] | 645 | return 1; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 646 | } |
Jens Axboe | 6a5e688 | 2007-07-26 10:47:51 +0200 | [diff] [blame] | 647 | |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 648 | /* |
| 649 | * mark entry before potentially trimming io_u |
| 650 | */ |
Jens Axboe | 303032a | 2008-03-26 10:11:10 +0100 | [diff] [blame] | 651 | if (td_random(td) && file_randommap(td, io_u->file)) |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 652 | mark_random_map(td, io_u); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 653 | |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 654 | /* |
| 655 | * If using a write iolog, store this entry. |
| 656 | */ |
Jens Axboe | c38e946 | 2007-03-27 08:48:48 +0200 | [diff] [blame] | 657 | out: |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 658 | dprint_io_u(io_u, "fill_io_u"); |
Jens Axboe | d9d91e3 | 2008-01-31 13:25:42 +0100 | [diff] [blame] | 659 | td->zone_bytes += io_u->buflen; |
Jens Axboe | f29b25a | 2007-07-23 08:56:43 +0200 | [diff] [blame] | 660 | log_io_u(td, io_u); |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 661 | return 0; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 662 | } |
| 663 | |
Jens Axboe | 838bc70 | 2008-05-22 13:08:23 +0200 | [diff] [blame] | 664 | static void __io_u_mark_map(unsigned int *map, unsigned int nr) |
| 665 | { |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 666 | int idx = 0; |
Jens Axboe | 838bc70 | 2008-05-22 13:08:23 +0200 | [diff] [blame] | 667 | |
| 668 | switch (nr) { |
| 669 | default: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 670 | idx = 6; |
Jens Axboe | 838bc70 | 2008-05-22 13:08:23 +0200 | [diff] [blame] | 671 | break; |
| 672 | case 33 ... 64: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 673 | idx = 5; |
Jens Axboe | 838bc70 | 2008-05-22 13:08:23 +0200 | [diff] [blame] | 674 | break; |
| 675 | case 17 ... 32: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 676 | idx = 4; |
Jens Axboe | 838bc70 | 2008-05-22 13:08:23 +0200 | [diff] [blame] | 677 | break; |
| 678 | case 9 ... 16: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 679 | idx = 3; |
Jens Axboe | 838bc70 | 2008-05-22 13:08:23 +0200 | [diff] [blame] | 680 | break; |
| 681 | case 5 ... 8: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 682 | idx = 2; |
Jens Axboe | 838bc70 | 2008-05-22 13:08:23 +0200 | [diff] [blame] | 683 | break; |
| 684 | case 1 ... 4: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 685 | idx = 1; |
Jens Axboe | 838bc70 | 2008-05-22 13:08:23 +0200 | [diff] [blame] | 686 | case 0: |
| 687 | break; |
| 688 | } |
| 689 | |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 690 | map[idx]++; |
Jens Axboe | 838bc70 | 2008-05-22 13:08:23 +0200 | [diff] [blame] | 691 | } |
| 692 | |
| 693 | void io_u_mark_submit(struct thread_data *td, unsigned int nr) |
| 694 | { |
| 695 | __io_u_mark_map(td->ts.io_u_submit, nr); |
| 696 | td->ts.total_submit++; |
| 697 | } |
| 698 | |
| 699 | void io_u_mark_complete(struct thread_data *td, unsigned int nr) |
| 700 | { |
| 701 | __io_u_mark_map(td->ts.io_u_complete, nr); |
| 702 | td->ts.total_complete++; |
| 703 | } |
| 704 | |
Jens Axboe | d800575 | 2008-05-15 09:49:09 +0200 | [diff] [blame] | 705 | void io_u_mark_depth(struct thread_data *td, unsigned int nr) |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 706 | { |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 707 | int idx = 0; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 708 | |
| 709 | switch (td->cur_depth) { |
| 710 | default: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 711 | idx = 6; |
Jens Axboe | a783e61 | 2007-06-19 09:50:28 +0200 | [diff] [blame] | 712 | break; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 713 | case 32 ... 63: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 714 | idx = 5; |
Jens Axboe | a783e61 | 2007-06-19 09:50:28 +0200 | [diff] [blame] | 715 | break; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 716 | case 16 ... 31: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 717 | idx = 4; |
Jens Axboe | a783e61 | 2007-06-19 09:50:28 +0200 | [diff] [blame] | 718 | break; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 719 | case 8 ... 15: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 720 | idx = 3; |
Jens Axboe | a783e61 | 2007-06-19 09:50:28 +0200 | [diff] [blame] | 721 | break; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 722 | case 4 ... 7: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 723 | idx = 2; |
Jens Axboe | a783e61 | 2007-06-19 09:50:28 +0200 | [diff] [blame] | 724 | break; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 725 | case 2 ... 3: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 726 | idx = 1; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 727 | case 1: |
| 728 | break; |
| 729 | } |
| 730 | |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 731 | td->ts.io_u_map[idx] += nr; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 732 | } |
| 733 | |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 734 | static void io_u_mark_lat_usec(struct thread_data *td, unsigned long usec) |
| 735 | { |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 736 | int idx = 0; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 737 | |
| 738 | assert(usec < 1000); |
| 739 | |
| 740 | switch (usec) { |
| 741 | case 750 ... 999: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 742 | idx = 9; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 743 | break; |
| 744 | case 500 ... 749: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 745 | idx = 8; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 746 | break; |
| 747 | case 250 ... 499: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 748 | idx = 7; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 749 | break; |
| 750 | case 100 ... 249: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 751 | idx = 6; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 752 | break; |
| 753 | case 50 ... 99: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 754 | idx = 5; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 755 | break; |
| 756 | case 20 ... 49: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 757 | idx = 4; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 758 | break; |
| 759 | case 10 ... 19: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 760 | idx = 3; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 761 | break; |
| 762 | case 4 ... 9: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 763 | idx = 2; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 764 | break; |
| 765 | case 2 ... 3: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 766 | idx = 1; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 767 | case 0 ... 1: |
| 768 | break; |
| 769 | } |
| 770 | |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 771 | assert(idx < FIO_IO_U_LAT_U_NR); |
| 772 | td->ts.io_u_lat_u[idx]++; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 773 | } |
| 774 | |
| 775 | 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] | 776 | { |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 777 | int idx = 0; |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 778 | |
| 779 | switch (msec) { |
| 780 | default: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 781 | idx = 11; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 782 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 783 | case 1000 ... 1999: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 784 | idx = 10; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 785 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 786 | case 750 ... 999: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 787 | idx = 9; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 788 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 789 | case 500 ... 749: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 790 | idx = 8; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 791 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 792 | case 250 ... 499: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 793 | idx = 7; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 794 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 795 | case 100 ... 249: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 796 | idx = 6; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 797 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 798 | case 50 ... 99: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 799 | idx = 5; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 800 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 801 | case 20 ... 49: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 802 | idx = 4; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 803 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 804 | case 10 ... 19: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 805 | idx = 3; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 806 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 807 | case 4 ... 9: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 808 | idx = 2; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 809 | break; |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 810 | case 2 ... 3: |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 811 | idx = 1; |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 812 | case 0 ... 1: |
| 813 | break; |
| 814 | } |
| 815 | |
Jens Axboe | 2b13e71 | 2011-01-19 14:04:16 -0700 | [diff] [blame] | 816 | assert(idx < FIO_IO_U_LAT_M_NR); |
| 817 | td->ts.io_u_lat_m[idx]++; |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 818 | } |
| 819 | |
| 820 | static void io_u_mark_latency(struct thread_data *td, unsigned long usec) |
| 821 | { |
| 822 | if (usec < 1000) |
| 823 | io_u_mark_lat_usec(td, usec); |
| 824 | else |
| 825 | io_u_mark_lat_msec(td, usec / 1000); |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 826 | } |
| 827 | |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 828 | /* |
| 829 | * Get next file to service by choosing one at random |
| 830 | */ |
Jens Axboe | 2cc5293 | 2009-06-09 14:14:20 +0200 | [diff] [blame] | 831 | static struct fio_file *get_next_file_rand(struct thread_data *td, |
| 832 | enum fio_file_flags goodf, |
Jens Axboe | d6aed79 | 2009-06-03 08:41:15 +0200 | [diff] [blame] | 833 | enum fio_file_flags badf) |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 834 | { |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 835 | struct fio_file *f; |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 836 | int fno; |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 837 | |
| 838 | do { |
Jens Axboe | 87b1067 | 2009-03-04 09:39:47 +0100 | [diff] [blame] | 839 | int opened = 0; |
Jens Axboe | 1294c3e | 2011-05-11 08:15:18 +0200 | [diff] [blame] | 840 | unsigned long r; |
Jens Axboe | 7c83c08 | 2007-03-01 10:04:15 +0100 | [diff] [blame] | 841 | |
Jens Axboe | 4c07ad8 | 2011-03-28 09:51:09 +0200 | [diff] [blame] | 842 | if (td->o.use_os_rand) { |
| 843 | r = os_random_long(&td->next_file_state); |
| 844 | fno = (unsigned int) ((double) td->o.nr_files |
| 845 | * (r / (OS_RAND_MAX + 1.0))); |
| 846 | } else { |
| 847 | r = __rand(&td->__next_file_state); |
| 848 | fno = (unsigned int) ((double) td->o.nr_files |
| 849 | * (r / (FRAND_MAX + 1.0))); |
| 850 | } |
| 851 | |
Jens Axboe | 126d65c | 2008-03-01 18:04:31 +0100 | [diff] [blame] | 852 | f = td->files[fno]; |
Jens Axboe | d6aed79 | 2009-06-03 08:41:15 +0200 | [diff] [blame] | 853 | if (fio_file_done(f)) |
Jens Axboe | 059e63c | 2007-03-27 20:34:47 +0200 | [diff] [blame] | 854 | continue; |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 855 | |
Jens Axboe | d6aed79 | 2009-06-03 08:41:15 +0200 | [diff] [blame] | 856 | if (!fio_file_open(f)) { |
Jens Axboe | 87b1067 | 2009-03-04 09:39:47 +0100 | [diff] [blame] | 857 | int err; |
| 858 | |
| 859 | err = td_io_open_file(td, f); |
| 860 | if (err) |
| 861 | continue; |
| 862 | opened = 1; |
| 863 | } |
| 864 | |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 865 | if ((!goodf || (f->flags & goodf)) && !(f->flags & badf)) { |
| 866 | dprint(FD_FILE, "get_next_file_rand: %p\n", f); |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 867 | return f; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 868 | } |
Jens Axboe | 87b1067 | 2009-03-04 09:39:47 +0100 | [diff] [blame] | 869 | if (opened) |
| 870 | td_io_close_file(td, f); |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 871 | } while (1); |
| 872 | } |
| 873 | |
| 874 | /* |
| 875 | * Get next file to service by doing round robin between all available ones |
| 876 | */ |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 877 | static struct fio_file *get_next_file_rr(struct thread_data *td, int goodf, |
| 878 | int badf) |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 879 | { |
| 880 | unsigned int old_next_file = td->next_file; |
| 881 | struct fio_file *f; |
| 882 | |
| 883 | do { |
Jens Axboe | 87b1067 | 2009-03-04 09:39:47 +0100 | [diff] [blame] | 884 | int opened = 0; |
| 885 | |
Jens Axboe | 126d65c | 2008-03-01 18:04:31 +0100 | [diff] [blame] | 886 | f = td->files[td->next_file]; |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 887 | |
| 888 | td->next_file++; |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 889 | if (td->next_file >= td->o.nr_files) |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 890 | td->next_file = 0; |
| 891 | |
Jens Axboe | 87b1067 | 2009-03-04 09:39:47 +0100 | [diff] [blame] | 892 | 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] | 893 | if (fio_file_done(f)) { |
Jens Axboe | d5ed68e | 2007-03-28 09:33:43 +0200 | [diff] [blame] | 894 | f = NULL; |
Jens Axboe | 059e63c | 2007-03-27 20:34:47 +0200 | [diff] [blame] | 895 | continue; |
Jens Axboe | d5ed68e | 2007-03-28 09:33:43 +0200 | [diff] [blame] | 896 | } |
Jens Axboe | 059e63c | 2007-03-27 20:34:47 +0200 | [diff] [blame] | 897 | |
Jens Axboe | d6aed79 | 2009-06-03 08:41:15 +0200 | [diff] [blame] | 898 | if (!fio_file_open(f)) { |
Jens Axboe | 87b1067 | 2009-03-04 09:39:47 +0100 | [diff] [blame] | 899 | int err; |
| 900 | |
| 901 | err = td_io_open_file(td, f); |
Jens Axboe | b5696bf | 2009-03-04 16:03:49 +0100 | [diff] [blame] | 902 | if (err) { |
| 903 | dprint(FD_FILE, "error %d on open of %s\n", |
| 904 | err, f->file_name); |
Jens Axboe | 87c27b4 | 2009-05-20 10:45:12 +0200 | [diff] [blame] | 905 | f = NULL; |
Jens Axboe | 87b1067 | 2009-03-04 09:39:47 +0100 | [diff] [blame] | 906 | continue; |
Jens Axboe | b5696bf | 2009-03-04 16:03:49 +0100 | [diff] [blame] | 907 | } |
Jens Axboe | 87b1067 | 2009-03-04 09:39:47 +0100 | [diff] [blame] | 908 | opened = 1; |
| 909 | } |
| 910 | |
Jens Axboe | 0b9d69e | 2009-09-11 22:29:54 +0200 | [diff] [blame] | 911 | dprint(FD_FILE, "goodf=%x, badf=%x, ff=%x\n", goodf, badf, |
| 912 | f->flags); |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 913 | if ((!goodf || (f->flags & goodf)) && !(f->flags & badf)) |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 914 | break; |
| 915 | |
Jens Axboe | 87b1067 | 2009-03-04 09:39:47 +0100 | [diff] [blame] | 916 | if (opened) |
| 917 | td_io_close_file(td, f); |
| 918 | |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 919 | f = NULL; |
| 920 | } while (td->next_file != old_next_file); |
| 921 | |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 922 | dprint(FD_FILE, "get_next_file_rr: %p\n", f); |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 923 | return f; |
| 924 | } |
| 925 | |
Jens Axboe | 7eb3657 | 2010-03-08 13:58:49 +0100 | [diff] [blame] | 926 | static struct fio_file *__get_next_file(struct thread_data *td) |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 927 | { |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 928 | struct fio_file *f; |
| 929 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 930 | assert(td->o.nr_files <= td->files_index); |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 931 | |
Jens Axboe | b5696bf | 2009-03-04 16:03:49 +0100 | [diff] [blame] | 932 | if (td->nr_done_files >= td->o.nr_files) { |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 933 | dprint(FD_FILE, "get_next_file: nr_open=%d, nr_done=%d," |
| 934 | " nr_files=%d\n", td->nr_open_files, |
| 935 | td->nr_done_files, |
| 936 | td->o.nr_files); |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 937 | return NULL; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 938 | } |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 939 | |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 940 | f = td->file_service_file; |
Jens Axboe | d6aed79 | 2009-06-03 08:41:15 +0200 | [diff] [blame] | 941 | if (f && fio_file_open(f) && !fio_file_closing(f)) { |
Jens Axboe | a086c25 | 2009-03-04 08:27:37 +0100 | [diff] [blame] | 942 | if (td->o.file_service_type == FIO_FSERVICE_SEQ) |
| 943 | goto out; |
| 944 | if (td->file_service_left--) |
| 945 | goto out; |
| 946 | } |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 947 | |
Jens Axboe | a086c25 | 2009-03-04 08:27:37 +0100 | [diff] [blame] | 948 | if (td->o.file_service_type == FIO_FSERVICE_RR || |
| 949 | td->o.file_service_type == FIO_FSERVICE_SEQ) |
Jens Axboe | d6aed79 | 2009-06-03 08:41:15 +0200 | [diff] [blame] | 950 | f = get_next_file_rr(td, FIO_FILE_open, FIO_FILE_closing); |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 951 | else |
Jens Axboe | d6aed79 | 2009-06-03 08:41:15 +0200 | [diff] [blame] | 952 | f = get_next_file_rand(td, FIO_FILE_open, FIO_FILE_closing); |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 953 | |
| 954 | td->file_service_file = f; |
| 955 | td->file_service_left = td->file_service_nr - 1; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 956 | out: |
Jens Axboe | 683023e | 2009-03-04 08:41:31 +0100 | [diff] [blame] | 957 | dprint(FD_FILE, "get_next_file: %p [%s]\n", f, f->file_name); |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 958 | return f; |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 959 | } |
| 960 | |
Jens Axboe | 7eb3657 | 2010-03-08 13:58:49 +0100 | [diff] [blame] | 961 | static struct fio_file *get_next_file(struct thread_data *td) |
| 962 | { |
| 963 | struct prof_io_ops *ops = &td->prof_io_ops; |
| 964 | |
| 965 | if (ops->get_next_file) |
| 966 | return ops->get_next_file(td); |
| 967 | |
| 968 | return __get_next_file(td); |
| 969 | } |
| 970 | |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 971 | static int set_io_u_file(struct thread_data *td, struct io_u *io_u) |
| 972 | { |
| 973 | struct fio_file *f; |
| 974 | |
| 975 | do { |
| 976 | f = get_next_file(td); |
| 977 | if (!f) |
| 978 | return 1; |
| 979 | |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 980 | io_u->file = f; |
| 981 | get_file(f); |
| 982 | |
| 983 | if (!fill_io_u(td, io_u)) |
| 984 | break; |
| 985 | |
Jens Axboe | b5696bf | 2009-03-04 16:03:49 +0100 | [diff] [blame] | 986 | put_file_log(td, f); |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 987 | td_io_close_file(td, f); |
Jens Axboe | b5696bf | 2009-03-04 16:03:49 +0100 | [diff] [blame] | 988 | io_u->file = NULL; |
Jens Axboe | d6aed79 | 2009-06-03 08:41:15 +0200 | [diff] [blame] | 989 | fio_file_set_done(f); |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 990 | td->nr_done_files++; |
Jens Axboe | 0b9d69e | 2009-09-11 22:29:54 +0200 | [diff] [blame] | 991 | dprint(FD_FILE, "%s: is done (%d of %d)\n", f->file_name, |
| 992 | td->nr_done_files, td->o.nr_files); |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 993 | } while (1); |
| 994 | |
| 995 | return 0; |
| 996 | } |
| 997 | |
| 998 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 999 | struct io_u *__get_io_u(struct thread_data *td) |
| 1000 | { |
| 1001 | struct io_u *io_u = NULL; |
| 1002 | |
Jens Axboe | e8462bd | 2009-07-06 12:59:04 +0200 | [diff] [blame] | 1003 | td_io_u_lock(td); |
| 1004 | |
| 1005 | again: |
Jens Axboe | 01743ee | 2008-06-02 12:19:19 +0200 | [diff] [blame] | 1006 | if (!flist_empty(&td->io_u_requeues)) |
| 1007 | io_u = flist_entry(td->io_u_requeues.next, struct io_u, list); |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 1008 | else if (!queue_full(td)) { |
Jens Axboe | 01743ee | 2008-06-02 12:19:19 +0200 | [diff] [blame] | 1009 | io_u = flist_entry(td->io_u_freelist.next, struct io_u, list); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1010 | |
Jens Axboe | 6040dab | 2006-10-24 19:38:15 +0200 | [diff] [blame] | 1011 | io_u->buflen = 0; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1012 | io_u->resid = 0; |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 1013 | io_u->file = NULL; |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 1014 | io_u->end_io = NULL; |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 1015 | } |
| 1016 | |
| 1017 | if (io_u) { |
Jens Axboe | 0c6e751 | 2007-02-22 11:19:39 +0100 | [diff] [blame] | 1018 | assert(io_u->flags & IO_U_F_FREE); |
Jens Axboe | 2ecc1b5 | 2009-11-04 20:58:09 +0100 | [diff] [blame] | 1019 | io_u->flags &= ~(IO_U_F_FREE | IO_U_F_FREE_DEF); |
Jens Axboe | 1ef2b6b | 2010-10-08 15:07:01 +0200 | [diff] [blame] | 1020 | io_u->flags &= ~(IO_U_F_TRIMMED | IO_U_F_BARRIER); |
Jens Axboe | 82af2a7 | 2012-03-13 13:45:58 +0100 | [diff] [blame] | 1021 | io_u->flags &= ~IO_U_F_VER_LIST; |
Jens Axboe | 0c6e751 | 2007-02-22 11:19:39 +0100 | [diff] [blame] | 1022 | |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 1023 | io_u->error = 0; |
Jens Axboe | 01743ee | 2008-06-02 12:19:19 +0200 | [diff] [blame] | 1024 | flist_del(&io_u->list); |
Bruce Cran | 94c6372 | 2012-10-10 08:15:58 -0600 | [diff] [blame] | 1025 | flist_add_tail(&io_u->list, &td->io_u_busylist); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1026 | td->cur_depth++; |
Radha Ramachandran | 0c41214 | 2009-11-03 21:45:31 +0100 | [diff] [blame] | 1027 | io_u->flags |= IO_U_F_IN_CUR_DEPTH; |
Jens Axboe | 1dec3e0 | 2010-03-19 10:33:39 +0100 | [diff] [blame] | 1028 | } else if (td->o.verify_async) { |
| 1029 | /* |
| 1030 | * We ran out, wait for async verify threads to finish and |
| 1031 | * return one |
| 1032 | */ |
| 1033 | pthread_cond_wait(&td->free_cond, &td->io_u_lock); |
| 1034 | goto again; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1035 | } |
| 1036 | |
Jens Axboe | e8462bd | 2009-07-06 12:59:04 +0200 | [diff] [blame] | 1037 | td_io_u_unlock(td); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1038 | return io_u; |
| 1039 | } |
| 1040 | |
Jens Axboe | 0d29de8 | 2010-09-01 13:54:15 +0200 | [diff] [blame] | 1041 | 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] | 1042 | { |
Jens Axboe | 0d29de8 | 2010-09-01 13:54:15 +0200 | [diff] [blame] | 1043 | if (td->o.trim_backlog && td->trim_entries) { |
| 1044 | int get_trim = 0; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1045 | |
Jens Axboe | 0d29de8 | 2010-09-01 13:54:15 +0200 | [diff] [blame] | 1046 | if (td->trim_batch) { |
| 1047 | td->trim_batch--; |
| 1048 | get_trim = 1; |
| 1049 | } else if (!(td->io_hist_len % td->o.trim_backlog) && |
| 1050 | td->last_ddir != DDIR_READ) { |
| 1051 | td->trim_batch = td->o.trim_batch; |
| 1052 | if (!td->trim_batch) |
| 1053 | td->trim_batch = td->o.trim_backlog; |
| 1054 | get_trim = 1; |
| 1055 | } |
| 1056 | |
| 1057 | if (get_trim && !get_next_trim(td, io_u)) |
| 1058 | return 1; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 1059 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1060 | |
Jens Axboe | 0d29de8 | 2010-09-01 13:54:15 +0200 | [diff] [blame] | 1061 | return 0; |
| 1062 | } |
| 1063 | |
| 1064 | static int check_get_verify(struct thread_data *td, struct io_u *io_u) |
| 1065 | { |
Jens Axboe | 9e14418 | 2010-06-15 14:25:36 +0200 | [diff] [blame] | 1066 | if (td->o.verify_backlog && td->io_hist_len) { |
| 1067 | int get_verify = 0; |
| 1068 | |
Jens Axboe | d1ece0c | 2012-03-07 09:32:58 +0100 | [diff] [blame] | 1069 | if (td->verify_batch) |
Jens Axboe | 9e14418 | 2010-06-15 14:25:36 +0200 | [diff] [blame] | 1070 | get_verify = 1; |
Jens Axboe | d1ece0c | 2012-03-07 09:32:58 +0100 | [diff] [blame] | 1071 | else if (!(td->io_hist_len % td->o.verify_backlog) && |
Jens Axboe | 9e14418 | 2010-06-15 14:25:36 +0200 | [diff] [blame] | 1072 | td->last_ddir != DDIR_READ) { |
| 1073 | td->verify_batch = td->o.verify_batch; |
Jens Axboe | f8a75c9 | 2010-06-15 14:27:28 +0200 | [diff] [blame] | 1074 | if (!td->verify_batch) |
| 1075 | td->verify_batch = td->o.verify_backlog; |
Jens Axboe | 9e14418 | 2010-06-15 14:25:36 +0200 | [diff] [blame] | 1076 | get_verify = 1; |
| 1077 | } |
| 1078 | |
Jens Axboe | d1ece0c | 2012-03-07 09:32:58 +0100 | [diff] [blame] | 1079 | if (get_verify && !get_next_verify(td, io_u)) { |
| 1080 | td->verify_batch--; |
Jens Axboe | 0d29de8 | 2010-09-01 13:54:15 +0200 | [diff] [blame] | 1081 | return 1; |
Jens Axboe | d1ece0c | 2012-03-07 09:32:58 +0100 | [diff] [blame] | 1082 | } |
Jens Axboe | 9e14418 | 2010-06-15 14:25:36 +0200 | [diff] [blame] | 1083 | } |
| 1084 | |
Jens Axboe | 0d29de8 | 2010-09-01 13:54:15 +0200 | [diff] [blame] | 1085 | return 0; |
| 1086 | } |
| 1087 | |
| 1088 | /* |
Jens Axboe | de78976 | 2011-09-16 22:11:23 +0200 | [diff] [blame] | 1089 | * Fill offset and start time into the buffer content, to prevent too |
Jens Axboe | 23f394d | 2011-09-16 22:45:27 +0200 | [diff] [blame] | 1090 | * easy compressible data for simple de-dupe attempts. Do this for every |
| 1091 | * 512b block in the range, since that should be the smallest block size |
| 1092 | * we can expect from a device. |
Jens Axboe | de78976 | 2011-09-16 22:11:23 +0200 | [diff] [blame] | 1093 | */ |
| 1094 | static void small_content_scramble(struct io_u *io_u) |
| 1095 | { |
Jens Axboe | 23f394d | 2011-09-16 22:45:27 +0200 | [diff] [blame] | 1096 | unsigned int i, nr_blocks = io_u->buflen / 512; |
Jens Axboe | fad82f7 | 2011-09-19 11:33:30 +0200 | [diff] [blame] | 1097 | unsigned long long boffset; |
Jens Axboe | 23f394d | 2011-09-16 22:45:27 +0200 | [diff] [blame] | 1098 | unsigned int offset; |
| 1099 | void *p, *end; |
Jens Axboe | de78976 | 2011-09-16 22:11:23 +0200 | [diff] [blame] | 1100 | |
Jens Axboe | 23f394d | 2011-09-16 22:45:27 +0200 | [diff] [blame] | 1101 | if (!nr_blocks) |
| 1102 | return; |
| 1103 | |
| 1104 | p = io_u->xfer_buf; |
Jens Axboe | fba76ee | 2011-09-27 14:27:48 -0600 | [diff] [blame] | 1105 | boffset = io_u->offset; |
Jens Axboe | 81f0366 | 2012-02-02 09:20:09 +0100 | [diff] [blame] | 1106 | io_u->buf_filled_len = 0; |
Jens Axboe | fad82f7 | 2011-09-19 11:33:30 +0200 | [diff] [blame] | 1107 | |
Jens Axboe | 23f394d | 2011-09-16 22:45:27 +0200 | [diff] [blame] | 1108 | for (i = 0; i < nr_blocks; i++) { |
| 1109 | /* |
| 1110 | * Fill the byte offset into a "random" start offset of |
| 1111 | * the buffer, given by the product of the usec time |
| 1112 | * and the actual offset. |
| 1113 | */ |
Jens Axboe | fad82f7 | 2011-09-19 11:33:30 +0200 | [diff] [blame] | 1114 | offset = (io_u->start_time.tv_usec ^ boffset) & 511; |
Jens Axboe | fba76ee | 2011-09-27 14:27:48 -0600 | [diff] [blame] | 1115 | offset &= ~(sizeof(unsigned long long) - 1); |
Jens Axboe | 23f394d | 2011-09-16 22:45:27 +0200 | [diff] [blame] | 1116 | if (offset >= 512 - sizeof(unsigned long long)) |
| 1117 | offset -= sizeof(unsigned long long); |
Jens Axboe | fba76ee | 2011-09-27 14:27:48 -0600 | [diff] [blame] | 1118 | memcpy(p + offset, &boffset, sizeof(boffset)); |
Jens Axboe | 23f394d | 2011-09-16 22:45:27 +0200 | [diff] [blame] | 1119 | |
| 1120 | end = p + 512 - sizeof(io_u->start_time); |
| 1121 | memcpy(end, &io_u->start_time, sizeof(io_u->start_time)); |
| 1122 | p += 512; |
Jens Axboe | fad82f7 | 2011-09-19 11:33:30 +0200 | [diff] [blame] | 1123 | boffset += 512; |
Jens Axboe | 23f394d | 2011-09-16 22:45:27 +0200 | [diff] [blame] | 1124 | } |
Jens Axboe | de78976 | 2011-09-16 22:11:23 +0200 | [diff] [blame] | 1125 | } |
| 1126 | |
| 1127 | /* |
Jens Axboe | 0d29de8 | 2010-09-01 13:54:15 +0200 | [diff] [blame] | 1128 | * Return an io_u to be processed. Gets a buflen and offset, sets direction, |
| 1129 | * etc. The returned io_u is fully ready to be prepped and submitted. |
| 1130 | */ |
| 1131 | struct io_u *get_io_u(struct thread_data *td) |
| 1132 | { |
| 1133 | struct fio_file *f; |
| 1134 | struct io_u *io_u; |
Jens Axboe | de78976 | 2011-09-16 22:11:23 +0200 | [diff] [blame] | 1135 | int do_scramble = 0; |
Jens Axboe | 0d29de8 | 2010-09-01 13:54:15 +0200 | [diff] [blame] | 1136 | |
| 1137 | io_u = __get_io_u(td); |
| 1138 | if (!io_u) { |
| 1139 | dprint(FD_IO, "__get_io_u failed\n"); |
| 1140 | return NULL; |
| 1141 | } |
| 1142 | |
| 1143 | if (check_get_verify(td, io_u)) |
| 1144 | goto out; |
| 1145 | if (check_get_trim(td, io_u)) |
| 1146 | goto out; |
| 1147 | |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 1148 | /* |
| 1149 | * from a requeue, io_u already setup |
| 1150 | */ |
| 1151 | if (io_u->file) |
Jens Axboe | 77f392b | 2007-02-19 20:13:09 +0100 | [diff] [blame] | 1152 | goto out; |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 1153 | |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 1154 | /* |
| 1155 | * If using an iolog, grab next piece if any available. |
| 1156 | */ |
| 1157 | if (td->o.read_iolog_file) { |
| 1158 | if (read_iolog_get(td, io_u)) |
| 1159 | goto err_put; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 1160 | } else if (set_io_u_file(td, io_u)) { |
| 1161 | dprint(FD_IO, "io_u %p, setting file failed\n", io_u); |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 1162 | goto err_put; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 1163 | } |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 1164 | |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 1165 | f = io_u->file; |
Jens Axboe | d6aed79 | 2009-06-03 08:41:15 +0200 | [diff] [blame] | 1166 | assert(fio_file_open(f)); |
Jens Axboe | 97af62c | 2007-05-22 11:12:13 +0200 | [diff] [blame] | 1167 | |
Jens Axboe | ff58fce | 2010-08-25 12:02:08 +0200 | [diff] [blame] | 1168 | if (ddir_rw(io_u->ddir)) { |
Jens Axboe | d0656a9 | 2008-02-01 18:33:23 +0100 | [diff] [blame] | 1169 | if (!io_u->buflen && !(td->io_ops->flags & FIO_NOIO)) { |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 1170 | 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] | 1171 | goto err_put; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 1172 | } |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 1173 | |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 1174 | f->last_start = io_u->offset; |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 1175 | f->last_pos = io_u->offset + io_u->buflen; |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 1176 | |
Jens Axboe | fd68418 | 2011-09-19 09:24:44 +0200 | [diff] [blame] | 1177 | if (io_u->ddir == DDIR_WRITE) { |
Jens Axboe | 629f1d7 | 2012-03-09 19:02:01 +0100 | [diff] [blame] | 1178 | if (td->o.refill_buffers) { |
Jens Axboe | 9c42684 | 2012-03-02 21:02:12 +0100 | [diff] [blame] | 1179 | io_u_fill_buffer(td, io_u, |
| 1180 | io_u->xfer_buflen, io_u->xfer_buflen); |
| 1181 | } else if (td->o.scramble_buffers) |
Jens Axboe | fd68418 | 2011-09-19 09:24:44 +0200 | [diff] [blame] | 1182 | do_scramble = 1; |
Jens Axboe | 629f1d7 | 2012-03-09 19:02:01 +0100 | [diff] [blame] | 1183 | if (td->o.verify != VERIFY_NONE) { |
| 1184 | populate_verify_io_u(td, io_u); |
| 1185 | do_scramble = 0; |
| 1186 | } |
Jens Axboe | fd68418 | 2011-09-19 09:24:44 +0200 | [diff] [blame] | 1187 | } else if (io_u->ddir == DDIR_READ) { |
Radha Ramachandran | cbe8d75 | 2010-07-14 08:36:07 +0200 | [diff] [blame] | 1188 | /* |
| 1189 | * Reset the buf_filled parameters so next time if the |
| 1190 | * buffer is used for writes it is refilled. |
| 1191 | */ |
Radha Ramachandran | cbe8d75 | 2010-07-14 08:36:07 +0200 | [diff] [blame] | 1192 | io_u->buf_filled_len = 0; |
| 1193 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1194 | } |
| 1195 | |
Jens Axboe | 165faf1 | 2007-02-07 11:30:37 +0100 | [diff] [blame] | 1196 | /* |
| 1197 | * Set io data pointers. |
| 1198 | */ |
Jens Axboe | cec6b55 | 2007-02-06 20:15:38 +0100 | [diff] [blame] | 1199 | io_u->xfer_buf = io_u->buf; |
| 1200 | io_u->xfer_buflen = io_u->buflen; |
Jens Axboe | 5973caf | 2008-05-21 19:52:35 +0200 | [diff] [blame] | 1201 | |
Jens Axboe | 6ac7a33 | 2008-03-01 15:22:32 +0100 | [diff] [blame] | 1202 | out: |
Jens Axboe | 0d29de8 | 2010-09-01 13:54:15 +0200 | [diff] [blame] | 1203 | assert(io_u->file); |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 1204 | if (!td_io_prep(td, io_u)) { |
Jens Axboe | 993bf48 | 2008-11-14 13:04:53 +0100 | [diff] [blame] | 1205 | if (!td->o.disable_slat) |
| 1206 | fio_gettime(&io_u->start_time, NULL); |
Jens Axboe | de78976 | 2011-09-16 22:11:23 +0200 | [diff] [blame] | 1207 | if (do_scramble) |
| 1208 | small_content_scramble(io_u); |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 1209 | return io_u; |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 1210 | } |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 1211 | err_put: |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 1212 | dprint(FD_IO, "get_io_u failed\n"); |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 1213 | put_io_u(td, io_u); |
| 1214 | return NULL; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1215 | } |
| 1216 | |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 1217 | void io_u_log_error(struct thread_data *td, struct io_u *io_u) |
| 1218 | { |
Dmitry Monakhov | 8b28bd4 | 2012-09-23 15:46:09 +0400 | [diff] [blame] | 1219 | 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] | 1220 | const char *msg[] = { "read", "write", "sync", "datasync", |
| 1221 | "sync_file_range", "wait", "trim" }; |
| 1222 | |
Dmitry Monakhov | 8b28bd4 | 2012-09-23 15:46:09 +0400 | [diff] [blame] | 1223 | if (td_non_fatal_error(td, eb, io_u->error) && !td->o.error_dump) |
| 1224 | return; |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 1225 | |
| 1226 | log_err("fio: io_u error"); |
| 1227 | |
| 1228 | if (io_u->file) |
| 1229 | log_err(" on file %s", io_u->file->file_name); |
| 1230 | |
| 1231 | log_err(": %s\n", strerror(io_u->error)); |
| 1232 | |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 1233 | log_err(" %s offset=%llu, buflen=%lu\n", msg[io_u->ddir], |
| 1234 | io_u->offset, io_u->xfer_buflen); |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 1235 | |
| 1236 | if (!td->error) |
| 1237 | td_verror(td, io_u->error, "io_u error"); |
| 1238 | } |
| 1239 | |
Jens Axboe | c8eeb9d | 2011-10-05 14:02:22 +0200 | [diff] [blame] | 1240 | static void account_io_completion(struct thread_data *td, struct io_u *io_u, |
| 1241 | struct io_completion_data *icd, |
| 1242 | const enum fio_ddir idx, unsigned int bytes) |
| 1243 | { |
Jens Axboe | 24d23ca | 2012-11-13 08:31:24 -0700 | [diff] [blame] | 1244 | unsigned long lusec = 0; |
Jens Axboe | c8eeb9d | 2011-10-05 14:02:22 +0200 | [diff] [blame] | 1245 | |
Jens Axboe | c8eeb9d | 2011-10-05 14:02:22 +0200 | [diff] [blame] | 1246 | if (!td->o.disable_clat || !td->o.disable_bw) |
| 1247 | lusec = utime_since(&io_u->issue_time, &icd->time); |
| 1248 | |
| 1249 | if (!td->o.disable_lat) { |
| 1250 | unsigned long tusec; |
| 1251 | |
| 1252 | tusec = utime_since(&io_u->start_time, &icd->time); |
| 1253 | add_lat_sample(td, idx, tusec, bytes); |
Jens Axboe | 1550153 | 2012-10-24 16:37:45 +0200 | [diff] [blame] | 1254 | |
| 1255 | if (td->o.max_latency && tusec > td->o.max_latency) { |
| 1256 | if (!td->error) |
| 1257 | log_err("fio: latency of %lu usec exceeds specified max (%u usec)\n", tusec, td->o.max_latency); |
Jens Axboe | c5b3adc | 2012-11-08 21:38:35 +0100 | [diff] [blame] | 1258 | td_verror(td, ETIMEDOUT, "max latency exceeded"); |
| 1259 | icd->error = ETIMEDOUT; |
Jens Axboe | 1550153 | 2012-10-24 16:37:45 +0200 | [diff] [blame] | 1260 | } |
Jens Axboe | c8eeb9d | 2011-10-05 14:02:22 +0200 | [diff] [blame] | 1261 | } |
| 1262 | |
| 1263 | if (!td->o.disable_clat) { |
| 1264 | add_clat_sample(td, idx, lusec, bytes); |
| 1265 | io_u_mark_latency(td, lusec); |
| 1266 | } |
| 1267 | |
| 1268 | if (!td->o.disable_bw) |
| 1269 | add_bw_sample(td, idx, bytes, &icd->time); |
| 1270 | |
| 1271 | add_iops_sample(td, idx, &icd->time); |
| 1272 | } |
| 1273 | |
Steven Lang | 1b8dbf2 | 2011-11-09 13:48:01 +0100 | [diff] [blame] | 1274 | static long long usec_for_io(struct thread_data *td, enum fio_ddir ddir) |
| 1275 | { |
| 1276 | unsigned long long secs, remainder, bps, bytes; |
| 1277 | bytes = td->this_io_bytes[ddir]; |
| 1278 | bps = td->rate_bps[ddir]; |
| 1279 | secs = bytes / bps; |
| 1280 | remainder = bytes % bps; |
| 1281 | return remainder * 1000000 / bps + secs * 1000000; |
| 1282 | } |
| 1283 | |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1284 | static void io_completed(struct thread_data *td, struct io_u *io_u, |
| 1285 | struct io_completion_data *icd) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1286 | { |
Jens Axboe | 44f2969 | 2010-03-09 20:09:44 +0100 | [diff] [blame] | 1287 | struct fio_file *f; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1288 | |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 1289 | dprint_io_u(io_u, "io complete"); |
| 1290 | |
Jens Axboe | 2ecc1b5 | 2009-11-04 20:58:09 +0100 | [diff] [blame] | 1291 | td_io_u_lock(td); |
Jens Axboe | 0c6e751 | 2007-02-22 11:19:39 +0100 | [diff] [blame] | 1292 | assert(io_u->flags & IO_U_F_FLIGHT); |
Jens Axboe | 38dad62 | 2010-07-20 14:46:00 -0600 | [diff] [blame] | 1293 | io_u->flags &= ~(IO_U_F_FLIGHT | IO_U_F_BUSY_OK); |
Jens Axboe | 2ecc1b5 | 2009-11-04 20:58:09 +0100 | [diff] [blame] | 1294 | td_io_u_unlock(td); |
Jens Axboe | 0c6e751 | 2007-02-22 11:19:39 +0100 | [diff] [blame] | 1295 | |
Jens Axboe | 5f9099e | 2009-06-16 22:40:26 +0200 | [diff] [blame] | 1296 | if (ddir_sync(io_u->ddir)) { |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 1297 | td->last_was_sync = 1; |
Jens Axboe | 44f2969 | 2010-03-09 20:09:44 +0100 | [diff] [blame] | 1298 | f = io_u->file; |
| 1299 | if (f) { |
| 1300 | f->first_write = -1ULL; |
| 1301 | f->last_write = -1ULL; |
| 1302 | } |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 1303 | return; |
| 1304 | } |
| 1305 | |
| 1306 | td->last_was_sync = 0; |
Jens Axboe | 9e14418 | 2010-06-15 14:25:36 +0200 | [diff] [blame] | 1307 | td->last_ddir = io_u->ddir; |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 1308 | |
Jens Axboe | ff58fce | 2010-08-25 12:02:08 +0200 | [diff] [blame] | 1309 | if (!io_u->error && ddir_rw(io_u->ddir)) { |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1310 | unsigned int bytes = io_u->buflen - io_u->resid; |
Jens Axboe | 1e97cce | 2006-12-05 11:44:16 +0100 | [diff] [blame] | 1311 | const enum fio_ddir idx = io_u->ddir; |
Radha Ramachandran | ba3e4e0 | 2009-12-09 22:31:44 +0100 | [diff] [blame] | 1312 | const enum fio_ddir odx = io_u->ddir ^ 1; |
Jens Axboe | b29ee5b | 2008-09-11 10:17:26 +0200 | [diff] [blame] | 1313 | int ret; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1314 | |
Jens Axboe | b29ee5b | 2008-09-11 10:17:26 +0200 | [diff] [blame] | 1315 | td->io_blocks[idx]++; |
Jens Axboe | c8eeb9d | 2011-10-05 14:02:22 +0200 | [diff] [blame] | 1316 | td->this_io_blocks[idx]++; |
Jens Axboe | b29ee5b | 2008-09-11 10:17:26 +0200 | [diff] [blame] | 1317 | td->io_bytes[idx] += bytes; |
webee | ae2fafc | 2012-03-23 13:41:41 +0100 | [diff] [blame] | 1318 | |
| 1319 | if (!(io_u->flags & IO_U_F_VER_LIST)) |
| 1320 | td->this_io_bytes[idx] += bytes; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1321 | |
Jens Axboe | 44f2969 | 2010-03-09 20:09:44 +0100 | [diff] [blame] | 1322 | if (idx == DDIR_WRITE) { |
| 1323 | f = io_u->file; |
| 1324 | if (f) { |
| 1325 | if (f->first_write == -1ULL || |
| 1326 | io_u->offset < f->first_write) |
| 1327 | f->first_write = io_u->offset; |
| 1328 | if (f->last_write == -1ULL || |
| 1329 | ((io_u->offset + bytes) > f->last_write)) |
| 1330 | f->last_write = io_u->offset + bytes; |
| 1331 | } |
| 1332 | } |
| 1333 | |
Steven Lang | 6b1190f | 2012-02-07 09:42:59 +0100 | [diff] [blame] | 1334 | if (ramp_time_over(td) && (td->runstate == TD_RUNNING || |
| 1335 | td->runstate == TD_VERIFYING)) { |
Jens Axboe | c8eeb9d | 2011-10-05 14:02:22 +0200 | [diff] [blame] | 1336 | account_io_completion(td, io_u, icd, idx, bytes); |
Jens Axboe | 40e1a6f | 2009-06-11 10:55:39 +0200 | [diff] [blame] | 1337 | |
Jens Axboe | b23b6a2 | 2009-06-11 22:06:23 +0200 | [diff] [blame] | 1338 | if (__should_check_rate(td, idx)) { |
Radha Ramachandran | ba3e4e0 | 2009-12-09 22:31:44 +0100 | [diff] [blame] | 1339 | td->rate_pending_usleep[idx] = |
Steven Lang | 1b8dbf2 | 2011-11-09 13:48:01 +0100 | [diff] [blame] | 1340 | (usec_for_io(td, idx) - |
Radha Ramachandran | ba3e4e0 | 2009-12-09 22:31:44 +0100 | [diff] [blame] | 1341 | utime_since_now(&td->start)); |
Jens Axboe | b23b6a2 | 2009-06-11 22:06:23 +0200 | [diff] [blame] | 1342 | } |
Shaohua Li | 6eaf09d | 2012-09-14 08:49:43 +0200 | [diff] [blame] | 1343 | if (idx != DDIR_TRIM && __should_check_rate(td, odx)) |
Radha Ramachandran | ba3e4e0 | 2009-12-09 22:31:44 +0100 | [diff] [blame] | 1344 | td->rate_pending_usleep[odx] = |
Steven Lang | 1b8dbf2 | 2011-11-09 13:48:01 +0100 | [diff] [blame] | 1345 | (usec_for_io(td, odx) - |
Radha Ramachandran | ba3e4e0 | 2009-12-09 22:31:44 +0100 | [diff] [blame] | 1346 | utime_since_now(&td->start)); |
Jens Axboe | 721938a | 2008-09-10 09:46:16 +0200 | [diff] [blame] | 1347 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1348 | |
Jens Axboe | 660a1cb | 2007-04-17 15:37:47 +0200 | [diff] [blame] | 1349 | if (td_write(td) && idx == DDIR_WRITE && |
Shawn Lewis | 8670579 | 2007-11-21 09:35:41 +0100 | [diff] [blame] | 1350 | td->o.do_verify && |
Jens Axboe | 4112840 | 2007-03-27 08:32:48 +0200 | [diff] [blame] | 1351 | td->o.verify != VERIFY_NONE) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1352 | log_io_piece(td, io_u); |
| 1353 | |
Jens Axboe | b29ee5b | 2008-09-11 10:17:26 +0200 | [diff] [blame] | 1354 | icd->bytes_done[idx] += bytes; |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 1355 | |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 1356 | if (io_u->end_io) { |
Jens Axboe | 36690c9 | 2007-03-26 10:23:34 +0200 | [diff] [blame] | 1357 | ret = io_u->end_io(td, io_u); |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 1358 | if (ret && !icd->error) |
| 1359 | icd->error = ret; |
| 1360 | } |
Jens Axboe | ff58fce | 2010-08-25 12:02:08 +0200 | [diff] [blame] | 1361 | } else if (io_u->error) { |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1362 | icd->error = io_u->error; |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 1363 | io_u_log_error(td, io_u); |
| 1364 | } |
Dmitry Monakhov | 8b28bd4 | 2012-09-23 15:46:09 +0400 | [diff] [blame] | 1365 | if (icd->error) { |
| 1366 | enum error_type_bit eb = td_error_type(io_u->ddir, icd->error); |
| 1367 | if (!td_non_fatal_error(td, eb, icd->error)) |
| 1368 | return; |
Radha Ramachandran | f2bba18 | 2009-06-15 08:40:16 +0200 | [diff] [blame] | 1369 | /* |
| 1370 | * If there is a non_fatal error, then add to the error count |
| 1371 | * and clear all the errors. |
| 1372 | */ |
| 1373 | update_error_count(td, icd->error); |
| 1374 | td_clear_error(td); |
| 1375 | icd->error = 0; |
| 1376 | io_u->error = 0; |
| 1377 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1378 | } |
| 1379 | |
Jens Axboe | 9520ebb | 2008-10-16 21:03:27 +0200 | [diff] [blame] | 1380 | static void init_icd(struct thread_data *td, struct io_completion_data *icd, |
| 1381 | int nr) |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 1382 | { |
Shaohua Li | 6eaf09d | 2012-09-14 08:49:43 +0200 | [diff] [blame] | 1383 | int ddir; |
Jens Axboe | 9520ebb | 2008-10-16 21:03:27 +0200 | [diff] [blame] | 1384 | if (!td->o.disable_clat || !td->o.disable_bw) |
| 1385 | fio_gettime(&icd->time, NULL); |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 1386 | |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 1387 | icd->nr = nr; |
| 1388 | |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 1389 | icd->error = 0; |
Shaohua Li | 6eaf09d | 2012-09-14 08:49:43 +0200 | [diff] [blame] | 1390 | for (ddir = DDIR_READ; ddir < DDIR_RWDIR_CNT; ddir++) |
| 1391 | icd->bytes_done[ddir] = 0; |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 1392 | } |
| 1393 | |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1394 | static void ios_completed(struct thread_data *td, |
| 1395 | struct io_completion_data *icd) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1396 | { |
| 1397 | struct io_u *io_u; |
| 1398 | int i; |
| 1399 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1400 | for (i = 0; i < icd->nr; i++) { |
| 1401 | io_u = td->io_ops->event(td, i); |
| 1402 | |
| 1403 | io_completed(td, io_u, icd); |
Jens Axboe | e8462bd | 2009-07-06 12:59:04 +0200 | [diff] [blame] | 1404 | |
| 1405 | if (!(io_u->flags & IO_U_F_FREE_DEF)) |
| 1406 | put_io_u(td, io_u); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 1407 | } |
| 1408 | } |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1409 | |
Jens Axboe | e7e6cfb | 2007-02-20 10:58:34 +0100 | [diff] [blame] | 1410 | /* |
| 1411 | * Complete a single io_u for the sync engines. |
| 1412 | */ |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 1413 | int io_u_sync_complete(struct thread_data *td, struct io_u *io_u, |
| 1414 | unsigned long *bytes) |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1415 | { |
| 1416 | struct io_completion_data icd; |
| 1417 | |
Jens Axboe | 9520ebb | 2008-10-16 21:03:27 +0200 | [diff] [blame] | 1418 | init_icd(td, &icd, 1); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1419 | io_completed(td, io_u, &icd); |
Jens Axboe | e8462bd | 2009-07-06 12:59:04 +0200 | [diff] [blame] | 1420 | |
| 1421 | if (!(io_u->flags & IO_U_F_FREE_DEF)) |
| 1422 | put_io_u(td, io_u); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1423 | |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 1424 | if (icd.error) { |
| 1425 | td_verror(td, icd.error, "io_u_sync_complete"); |
| 1426 | return -1; |
| 1427 | } |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1428 | |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 1429 | if (bytes) { |
Shaohua Li | 6eaf09d | 2012-09-14 08:49:43 +0200 | [diff] [blame] | 1430 | int ddir; |
| 1431 | |
| 1432 | for (ddir = DDIR_READ; ddir < DDIR_RWDIR_CNT; ddir++) |
| 1433 | bytes[ddir] += icd.bytes_done[ddir]; |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 1434 | } |
| 1435 | |
| 1436 | return 0; |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1437 | } |
| 1438 | |
Jens Axboe | e7e6cfb | 2007-02-20 10:58:34 +0100 | [diff] [blame] | 1439 | /* |
| 1440 | * Called to complete min_events number of io for the async engines. |
| 1441 | */ |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 1442 | int io_u_queued_complete(struct thread_data *td, int min_evts, |
| 1443 | unsigned long *bytes) |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1444 | { |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1445 | struct io_completion_data icd; |
Jens Axboe | 00de55e | 2007-02-20 10:45:57 +0100 | [diff] [blame] | 1446 | struct timespec *tvp = NULL; |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1447 | int ret; |
Davide Libenzi | 4d06a33 | 2007-03-22 07:43:50 +0100 | [diff] [blame] | 1448 | struct timespec ts = { .tv_sec = 0, .tv_nsec = 0, }; |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1449 | |
Jens Axboe | 4950421 | 2008-06-05 09:03:30 +0200 | [diff] [blame] | 1450 | dprint(FD_IO, "io_u_queued_completed: min=%d\n", min_evts); |
Jens Axboe | b271fe6 | 2008-02-04 10:49:41 +0100 | [diff] [blame] | 1451 | |
Jens Axboe | 4950421 | 2008-06-05 09:03:30 +0200 | [diff] [blame] | 1452 | if (!min_evts) |
Jens Axboe | 00de55e | 2007-02-20 10:45:57 +0100 | [diff] [blame] | 1453 | tvp = &ts; |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1454 | |
Jens Axboe | 4950421 | 2008-06-05 09:03:30 +0200 | [diff] [blame] | 1455 | 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] | 1456 | if (ret < 0) { |
Jens Axboe | e1161c3 | 2007-02-22 19:36:48 +0100 | [diff] [blame] | 1457 | td_verror(td, -ret, "td_io_getevents"); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1458 | return ret; |
| 1459 | } else if (!ret) |
| 1460 | return ret; |
| 1461 | |
Jens Axboe | 9520ebb | 2008-10-16 21:03:27 +0200 | [diff] [blame] | 1462 | init_icd(td, &icd, ret); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1463 | ios_completed(td, &icd); |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 1464 | if (icd.error) { |
| 1465 | td_verror(td, icd.error, "io_u_queued_complete"); |
| 1466 | return -1; |
| 1467 | } |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1468 | |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 1469 | if (bytes) { |
Shaohua Li | 6eaf09d | 2012-09-14 08:49:43 +0200 | [diff] [blame] | 1470 | int ddir; |
| 1471 | |
| 1472 | for (ddir = DDIR_READ; ddir < DDIR_RWDIR_CNT; ddir++) |
| 1473 | bytes[ddir] += icd.bytes_done[ddir]; |
Jens Axboe | 581e714 | 2009-06-09 12:47:16 +0200 | [diff] [blame] | 1474 | } |
| 1475 | |
| 1476 | return 0; |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 1477 | } |
Jens Axboe | 7e77dd0 | 2007-02-20 10:57:34 +0100 | [diff] [blame] | 1478 | |
| 1479 | /* |
| 1480 | * Call when io_u is really queued, to update the submission latency. |
| 1481 | */ |
| 1482 | void io_u_queued(struct thread_data *td, struct io_u *io_u) |
| 1483 | { |
Jens Axboe | 9520ebb | 2008-10-16 21:03:27 +0200 | [diff] [blame] | 1484 | if (!td->o.disable_slat) { |
| 1485 | unsigned long slat_time; |
Jens Axboe | 7e77dd0 | 2007-02-20 10:57:34 +0100 | [diff] [blame] | 1486 | |
Jens Axboe | 9520ebb | 2008-10-16 21:03:27 +0200 | [diff] [blame] | 1487 | slat_time = utime_since(&io_u->start_time, &io_u->issue_time); |
Jens Axboe | 29a90dd | 2009-06-10 06:57:47 +0200 | [diff] [blame] | 1488 | 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] | 1489 | } |
Jens Axboe | 7e77dd0 | 2007-02-20 10:57:34 +0100 | [diff] [blame] | 1490 | } |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 1491 | |
Jens Axboe | 5973caf | 2008-05-21 19:52:35 +0200 | [diff] [blame] | 1492 | /* |
| 1493 | * "randomly" fill the buffer contents |
| 1494 | */ |
| 1495 | void io_u_fill_buffer(struct thread_data *td, struct io_u *io_u, |
Jens Axboe | 9c42684 | 2012-03-02 21:02:12 +0100 | [diff] [blame] | 1496 | unsigned int min_write, unsigned int max_bs) |
Jens Axboe | 5973caf | 2008-05-21 19:52:35 +0200 | [diff] [blame] | 1497 | { |
Jens Axboe | e84b371 | 2011-01-16 08:32:08 -0700 | [diff] [blame] | 1498 | io_u->buf_filled_len = 0; |
| 1499 | |
Jens Axboe | 9c42684 | 2012-03-02 21:02:12 +0100 | [diff] [blame] | 1500 | if (!td->o.zero_buffers) { |
| 1501 | unsigned int perc = td->o.compress_percentage; |
| 1502 | |
| 1503 | if (perc) { |
Jens Axboe | f97a43a | 2012-03-09 19:06:24 +0100 | [diff] [blame] | 1504 | unsigned int seg = min_write; |
| 1505 | |
| 1506 | seg = min(min_write, td->o.compress_chunk); |
Jens Axboe | 9c42684 | 2012-03-02 21:02:12 +0100 | [diff] [blame] | 1507 | fill_random_buf_percentage(&td->buf_state, io_u->buf, |
Jens Axboe | f97a43a | 2012-03-09 19:06:24 +0100 | [diff] [blame] | 1508 | perc, seg, max_bs); |
Jens Axboe | 9c42684 | 2012-03-02 21:02:12 +0100 | [diff] [blame] | 1509 | } else |
| 1510 | fill_random_buf(&td->buf_state, io_u->buf, max_bs); |
| 1511 | } else |
Jens Axboe | 637ef8d | 2010-06-21 20:39:38 +0200 | [diff] [blame] | 1512 | memset(io_u->buf, 0, max_bs); |
Jens Axboe | 5973caf | 2008-05-21 19:52:35 +0200 | [diff] [blame] | 1513 | } |