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 | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 10 | |
Jens Axboe | 5945b9b | 2007-02-22 20:33:01 +0100 | [diff] [blame] | 11 | /* |
| 12 | * Change this define to play with the timeout handling |
| 13 | */ |
| 14 | #undef FIO_USE_TIMEOUT |
| 15 | |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 16 | struct io_completion_data { |
| 17 | int nr; /* input */ |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 18 | |
| 19 | int error; /* output */ |
| 20 | unsigned long bytes_done[2]; /* output */ |
| 21 | struct timeval time; /* output */ |
| 22 | }; |
| 23 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 24 | /* |
| 25 | * The ->file_map[] contains a map of blocks we have or have not done io |
| 26 | * to yet. Used to make sure we cover the entire range in a fair fashion. |
| 27 | */ |
Jens Axboe | aec2de2 | 2008-04-24 12:44:42 +0200 | [diff] [blame] | 28 | 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] | 29 | { |
Jens Axboe | aec2de2 | 2008-04-24 12:44:42 +0200 | [diff] [blame] | 30 | unsigned int idx = RAND_MAP_IDX(f, block); |
| 31 | unsigned int bit = RAND_MAP_BIT(f, block); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 32 | |
Jens Axboe | 84422ac | 2008-02-19 20:10:26 +0100 | [diff] [blame] | 33 | dprint(FD_RANDOM, "free: b=%llu, idx=%u, bit=%u\n", block, idx, bit); |
| 34 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 35 | return (f->file_map[idx] & (1UL << bit)) == 0; |
| 36 | } |
| 37 | |
| 38 | /* |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 39 | * Mark a given offset as used in the map. |
| 40 | */ |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 41 | 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] | 42 | { |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 43 | unsigned int min_bs = td->o.rw_min_bs; |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 44 | struct fio_file *f = io_u->file; |
Jens Axboe | a00735e | 2006-11-03 08:58:08 +0100 | [diff] [blame] | 45 | unsigned long long block; |
| 46 | unsigned int blocks; |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 47 | unsigned int nr_blocks; |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 48 | |
Jens Axboe | b9c5b64 | 2008-02-18 14:13:08 +0100 | [diff] [blame] | 49 | block = (io_u->offset - f->file_offset) / (unsigned long long) min_bs; |
Jens Axboe | a00735e | 2006-11-03 08:58:08 +0100 | [diff] [blame] | 50 | blocks = 0; |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 51 | nr_blocks = (io_u->buflen + min_bs - 1) / min_bs; |
| 52 | |
| 53 | while (blocks < nr_blocks) { |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 54 | unsigned int idx, bit; |
| 55 | |
Jens Axboe | 1e3d53a | 2007-03-22 19:01:48 +0100 | [diff] [blame] | 56 | /* |
| 57 | * If we have a mixed random workload, we may |
| 58 | * encounter blocks we already did IO to. |
| 59 | */ |
Jens Axboe | aec2de2 | 2008-04-24 12:44:42 +0200 | [diff] [blame] | 60 | if ((td->o.ddir_nr == 1) && !random_map_free(f, block)) |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 61 | break; |
| 62 | |
Jens Axboe | aec2de2 | 2008-04-24 12:44:42 +0200 | [diff] [blame] | 63 | idx = RAND_MAP_IDX(f, block); |
| 64 | bit = RAND_MAP_BIT(f, block); |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 65 | |
Jens Axboe | 0032bf9 | 2007-02-13 17:39:56 +0100 | [diff] [blame] | 66 | fio_assert(td, idx < f->num_maps); |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 67 | |
| 68 | f->file_map[idx] |= (1UL << bit); |
| 69 | block++; |
| 70 | blocks++; |
| 71 | } |
| 72 | |
Jens Axboe | a00735e | 2006-11-03 08:58:08 +0100 | [diff] [blame] | 73 | if ((blocks * min_bs) < io_u->buflen) |
| 74 | io_u->buflen = blocks * min_bs; |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 75 | } |
| 76 | |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 77 | static inline unsigned long long last_block(struct thread_data *td, |
Jens Axboe | 4ba6613 | 2008-02-05 10:05:50 +0100 | [diff] [blame] | 78 | struct fio_file *f, |
| 79 | enum fio_ddir ddir) |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 80 | { |
| 81 | unsigned long long max_blocks; |
| 82 | |
Jens Axboe | 84422ac | 2008-02-19 20:10:26 +0100 | [diff] [blame] | 83 | max_blocks = f->io_size / (unsigned long long) td->o.min_bs[ddir]; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 84 | if (!max_blocks) |
| 85 | return 0; |
| 86 | |
Jens Axboe | 67778e8 | 2008-05-15 09:20:08 +0200 | [diff] [blame] | 87 | return max_blocks; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 88 | } |
| 89 | |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 90 | /* |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 91 | * Return the next free block in the map. |
| 92 | */ |
| 93 | static int get_next_free_block(struct thread_data *td, struct fio_file *f, |
Jens Axboe | 4ba6613 | 2008-02-05 10:05:50 +0100 | [diff] [blame] | 94 | enum fio_ddir ddir, unsigned long long *b) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 95 | { |
Jens Axboe | 84422ac | 2008-02-19 20:10:26 +0100 | [diff] [blame] | 96 | unsigned long long min_bs = td->o.rw_min_bs; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 97 | int i; |
| 98 | |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 99 | i = f->last_free_lookup; |
| 100 | *b = (i * BLOCKS_PER_MAP); |
Jens Axboe | 84422ac | 2008-02-19 20:10:26 +0100 | [diff] [blame] | 101 | while ((*b) * min_bs < f->real_file_size) { |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 102 | if (f->file_map[i] != -1UL) { |
Jens Axboe | b12ebc6 | 2007-05-21 11:42:33 +0200 | [diff] [blame] | 103 | *b += fio_ffz(f->file_map[i]); |
Jens Axboe | 4ba6613 | 2008-02-05 10:05:50 +0100 | [diff] [blame] | 104 | if (*b > last_block(td, f, ddir)) |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 105 | break; |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 106 | f->last_free_lookup = i; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 107 | return 0; |
| 108 | } |
| 109 | |
| 110 | *b += BLOCKS_PER_MAP; |
| 111 | i++; |
| 112 | } |
| 113 | |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 114 | dprint(FD_IO, "failed finding a free block\n"); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 115 | return 1; |
| 116 | } |
| 117 | |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 118 | static int get_next_rand_offset(struct thread_data *td, struct fio_file *f, |
Jens Axboe | 4ba6613 | 2008-02-05 10:05:50 +0100 | [diff] [blame] | 119 | enum fio_ddir ddir, unsigned long long *b) |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 120 | { |
Jens Axboe | 84422ac | 2008-02-19 20:10:26 +0100 | [diff] [blame] | 121 | unsigned long long r; |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 122 | int loops = 5; |
| 123 | |
| 124 | do { |
| 125 | r = os_random_long(&td->random_state); |
Jens Axboe | 84422ac | 2008-02-19 20:10:26 +0100 | [diff] [blame] | 126 | dprint(FD_RANDOM, "off rand %llu\n", r); |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 127 | *b = (last_block(td, f, ddir) - 1) |
| 128 | * (r / ((unsigned long long) RAND_MAX + 1.0)); |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 129 | |
Jens Axboe | 43c63a7 | 2007-05-21 13:23:30 +0200 | [diff] [blame] | 130 | /* |
| 131 | * if we are not maintaining a random map, we are done. |
| 132 | */ |
Jens Axboe | 303032a | 2008-03-26 10:11:10 +0100 | [diff] [blame] | 133 | if (!file_randommap(td, f)) |
Jens Axboe | 43c63a7 | 2007-05-21 13:23:30 +0200 | [diff] [blame] | 134 | return 0; |
| 135 | |
| 136 | /* |
Jens Axboe | 84422ac | 2008-02-19 20:10:26 +0100 | [diff] [blame] | 137 | * calculate map offset and check if it's free |
Jens Axboe | 43c63a7 | 2007-05-21 13:23:30 +0200 | [diff] [blame] | 138 | */ |
Jens Axboe | aec2de2 | 2008-04-24 12:44:42 +0200 | [diff] [blame] | 139 | if (random_map_free(f, *b)) |
Jens Axboe | 43c63a7 | 2007-05-21 13:23:30 +0200 | [diff] [blame] | 140 | return 0; |
| 141 | |
Jens Axboe | 84422ac | 2008-02-19 20:10:26 +0100 | [diff] [blame] | 142 | dprint(FD_RANDOM, "get_next_rand_offset: offset %llu busy\n", |
| 143 | *b); |
Jens Axboe | 43c63a7 | 2007-05-21 13:23:30 +0200 | [diff] [blame] | 144 | } while (--loops); |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 145 | |
| 146 | /* |
Jens Axboe | 43c63a7 | 2007-05-21 13:23:30 +0200 | [diff] [blame] | 147 | * we get here, if we didn't suceed in looking up a block. generate |
| 148 | * a random start offset into the filemap, and find the first free |
| 149 | * block from there. |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 150 | */ |
Jens Axboe | 43c63a7 | 2007-05-21 13:23:30 +0200 | [diff] [blame] | 151 | loops = 10; |
| 152 | do { |
| 153 | f->last_free_lookup = (f->num_maps - 1) * (r / (RAND_MAX+1.0)); |
Jens Axboe | 4ba6613 | 2008-02-05 10:05:50 +0100 | [diff] [blame] | 154 | if (!get_next_free_block(td, f, ddir, b)) |
Jens Axboe | 43c63a7 | 2007-05-21 13:23:30 +0200 | [diff] [blame] | 155 | return 0; |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 156 | |
Jens Axboe | 43c63a7 | 2007-05-21 13:23:30 +0200 | [diff] [blame] | 157 | r = os_random_long(&td->random_state); |
| 158 | } while (--loops); |
| 159 | |
| 160 | /* |
| 161 | * that didn't work either, try exhaustive search from the start |
| 162 | */ |
| 163 | f->last_free_lookup = 0; |
Jens Axboe | 4ba6613 | 2008-02-05 10:05:50 +0100 | [diff] [blame] | 164 | return get_next_free_block(td, f, ddir, b); |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 165 | } |
| 166 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 167 | /* |
| 168 | * For random io, generate a random new block and see if it's used. Repeat |
| 169 | * until we find a free one. For sequential io, just return the end of |
| 170 | * the last io issued. |
| 171 | */ |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 172 | 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] | 173 | { |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 174 | struct fio_file *f = io_u->file; |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 175 | unsigned long long b; |
Jens Axboe | 4ba6613 | 2008-02-05 10:05:50 +0100 | [diff] [blame] | 176 | enum fio_ddir ddir = io_u->ddir; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 177 | |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 178 | if (td_random(td) && (td->o.ddir_nr && !--td->ddir_nr)) { |
| 179 | td->ddir_nr = td->o.ddir_nr; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 180 | |
Jens Axboe | 4ba6613 | 2008-02-05 10:05:50 +0100 | [diff] [blame] | 181 | if (get_next_rand_offset(td, f, ddir, &b)) |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 182 | return 1; |
Jens Axboe | 43063a1 | 2007-03-27 20:21:24 +0200 | [diff] [blame] | 183 | } else { |
ljzhang,Yaxin Hu,Jianchao Tang | 0c3d768 | 2007-07-26 10:59:25 +0200 | [diff] [blame] | 184 | if (f->last_pos >= f->real_file_size) { |
Jens Axboe | 4ba6613 | 2008-02-05 10:05:50 +0100 | [diff] [blame] | 185 | if (!td_random(td) || |
| 186 | get_next_rand_offset(td, f, ddir, &b)) |
ljzhang,Yaxin Hu,Jianchao Tang | 0c3d768 | 2007-07-26 10:59:25 +0200 | [diff] [blame] | 187 | return 1; |
ljzhang,Yaxin Hu,Jianchao Tang | bcdedd0 | 2007-07-27 13:28:26 +0200 | [diff] [blame] | 188 | } else |
Jens Axboe | 4ba6613 | 2008-02-05 10:05:50 +0100 | [diff] [blame] | 189 | b = (f->last_pos - f->file_offset) / td->o.min_bs[ddir]; |
Jens Axboe | 43063a1 | 2007-03-27 20:21:24 +0200 | [diff] [blame] | 190 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 191 | |
Jens Axboe | 009bd84 | 2008-05-15 10:19:46 +0200 | [diff] [blame] | 192 | io_u->offset = b * td->o.min_bs[ddir]; |
| 193 | if (io_u->offset >= f->io_size) { |
| 194 | dprint(FD_IO, "get_next_offset: offset %llu >= io_size %llu\n", |
| 195 | io_u->offset, f->io_size); |
| 196 | return 1; |
| 197 | } |
| 198 | |
| 199 | io_u->offset += f->file_offset; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 200 | if (io_u->offset >= f->real_file_size) { |
| 201 | dprint(FD_IO, "get_next_offset: offset %llu >= size %llu\n", |
| 202 | io_u->offset, f->real_file_size); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 203 | return 1; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 204 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 205 | |
| 206 | return 0; |
| 207 | } |
| 208 | |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 209 | 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] | 210 | { |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 211 | const int ddir = io_u->ddir; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 212 | unsigned int buflen; |
| 213 | long r; |
| 214 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 215 | if (td->o.min_bs[ddir] == td->o.max_bs[ddir]) |
| 216 | buflen = td->o.min_bs[ddir]; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 217 | else { |
| 218 | r = os_random_long(&td->bsrange_state); |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 219 | if (!td->o.bssplit_nr) { |
| 220 | buflen = (unsigned int) |
| 221 | (1 + (double) (td->o.max_bs[ddir] - 1) |
| 222 | * r / (RAND_MAX + 1.0)); |
| 223 | } else { |
Jens Axboe | 564ca97 | 2007-12-14 12:21:19 +0100 | [diff] [blame] | 224 | long perc = 0; |
| 225 | unsigned int i; |
| 226 | |
| 227 | for (i = 0; i < td->o.bssplit_nr; i++) { |
| 228 | struct bssplit *bsp = &td->o.bssplit[i]; |
| 229 | |
| 230 | buflen = bsp->bs; |
| 231 | perc += bsp->perc; |
| 232 | if (r <= ((LONG_MAX / 100L) * perc)) |
| 233 | break; |
| 234 | } |
| 235 | } |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 236 | if (!td->o.bs_unaligned) { |
| 237 | buflen = (buflen + td->o.min_bs[ddir] - 1) |
| 238 | & ~(td->o.min_bs[ddir] - 1); |
| 239 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 240 | } |
| 241 | |
Jens Axboe | 4ba6613 | 2008-02-05 10:05:50 +0100 | [diff] [blame] | 242 | if (io_u->offset + buflen > io_u->file->real_file_size) { |
| 243 | dprint(FD_IO, "lower buflen %u -> %u (ddir=%d)\n", buflen, |
| 244 | td->o.min_bs[ddir], ddir); |
Jens Axboe | 6a5e688 | 2007-07-26 10:47:51 +0200 | [diff] [blame] | 245 | buflen = td->o.min_bs[ddir]; |
Jens Axboe | 4ba6613 | 2008-02-05 10:05:50 +0100 | [diff] [blame] | 246 | } |
Jens Axboe | 6a5e688 | 2007-07-26 10:47:51 +0200 | [diff] [blame] | 247 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 248 | return buflen; |
| 249 | } |
| 250 | |
Jens Axboe | afe24a5 | 2007-03-16 20:27:27 +0100 | [diff] [blame] | 251 | static void set_rwmix_bytes(struct thread_data *td) |
| 252 | { |
Jens Axboe | e492866 | 2008-04-07 09:19:46 +0200 | [diff] [blame] | 253 | unsigned long issues; |
Jens Axboe | afe24a5 | 2007-03-16 20:27:27 +0100 | [diff] [blame] | 254 | unsigned int diff; |
| 255 | |
| 256 | /* |
| 257 | * we do time or byte based switch. this is needed because |
| 258 | * buffered writes may issue a lot quicker than they complete, |
| 259 | * whereas reads do not. |
| 260 | */ |
Jens Axboe | e492866 | 2008-04-07 09:19:46 +0200 | [diff] [blame] | 261 | issues = td->io_issues[td->rwmix_ddir] - td->rwmix_issues; |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 262 | diff = td->o.rwmix[td->rwmix_ddir ^ 1]; |
Jens Axboe | afe24a5 | 2007-03-16 20:27:27 +0100 | [diff] [blame] | 263 | |
Jens Axboe | e492866 | 2008-04-07 09:19:46 +0200 | [diff] [blame] | 264 | td->rwmix_issues = td->io_issues[td->rwmix_ddir] |
| 265 | + (issues * ((100 - diff)) / diff); |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 266 | } |
| 267 | |
| 268 | static inline enum fio_ddir get_rand_ddir(struct thread_data *td) |
| 269 | { |
| 270 | unsigned int v; |
| 271 | long r; |
| 272 | |
| 273 | r = os_random_long(&td->rwmix_state); |
| 274 | v = 1 + (int) (100.0 * (r / (RAND_MAX + 1.0))); |
| 275 | if (v < td->o.rwmix[DDIR_READ]) |
| 276 | return DDIR_READ; |
| 277 | |
| 278 | return DDIR_WRITE; |
Jens Axboe | afe24a5 | 2007-03-16 20:27:27 +0100 | [diff] [blame] | 279 | } |
| 280 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 281 | /* |
| 282 | * Return the data direction for the next io_u. If the job is a |
| 283 | * mixed read/write workload, check the rwmix cycle and switch if |
| 284 | * necessary. |
| 285 | */ |
Jens Axboe | 1e97cce | 2006-12-05 11:44:16 +0100 | [diff] [blame] | 286 | static enum fio_ddir get_rw_ddir(struct thread_data *td) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 287 | { |
| 288 | if (td_rw(td)) { |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 289 | /* |
| 290 | * Check if it's time to seed a new data direction. |
| 291 | */ |
Jens Axboe | e492866 | 2008-04-07 09:19:46 +0200 | [diff] [blame] | 292 | if (td->io_issues[td->rwmix_ddir] >= td->rwmix_issues) { |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 293 | unsigned long long max_bytes; |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 294 | enum fio_ddir ddir; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 295 | |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 296 | /* |
| 297 | * Put a top limit on how many bytes we do for |
| 298 | * one data direction, to avoid overflowing the |
| 299 | * ranges too much |
| 300 | */ |
| 301 | ddir = get_rand_ddir(td); |
| 302 | max_bytes = td->this_io_bytes[ddir]; |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 303 | if (max_bytes >= |
| 304 | (td->o.size * td->o.rwmix[ddir] / 100)) { |
Jens Axboe | e492866 | 2008-04-07 09:19:46 +0200 | [diff] [blame] | 305 | if (!td->rw_end_set[ddir]) |
Jens Axboe | 38d77ca | 2007-03-21 14:20:20 +0100 | [diff] [blame] | 306 | td->rw_end_set[ddir] = 1; |
Jens Axboe | e492866 | 2008-04-07 09:19:46 +0200 | [diff] [blame] | 307 | |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 308 | ddir ^= 1; |
Jens Axboe | 38d77ca | 2007-03-21 14:20:20 +0100 | [diff] [blame] | 309 | } |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 310 | |
| 311 | if (ddir != td->rwmix_ddir) |
| 312 | set_rwmix_bytes(td); |
| 313 | |
| 314 | td->rwmix_ddir = ddir; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 315 | } |
| 316 | return td->rwmix_ddir; |
| 317 | } else if (td_read(td)) |
| 318 | return DDIR_READ; |
| 319 | else |
| 320 | return DDIR_WRITE; |
| 321 | } |
| 322 | |
Jens Axboe | 60f2c65 | 2008-05-16 12:31:36 +0200 | [diff] [blame] | 323 | static void put_file_log(struct thread_data *td, struct fio_file *f) |
| 324 | { |
| 325 | int ret = put_file(td, f); |
| 326 | |
| 327 | if (ret) |
| 328 | td_verror(td, ret, "file close"); |
| 329 | } |
| 330 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 331 | void put_io_u(struct thread_data *td, struct io_u *io_u) |
| 332 | { |
Jens Axboe | 0c6e751 | 2007-02-22 11:19:39 +0100 | [diff] [blame] | 333 | assert((io_u->flags & IO_U_F_FREE) == 0); |
| 334 | io_u->flags |= IO_U_F_FREE; |
| 335 | |
Jens Axboe | 60f2c65 | 2008-05-16 12:31:36 +0200 | [diff] [blame] | 336 | if (io_u->file) |
| 337 | put_file_log(td, io_u->file); |
Jens Axboe | 2dbdab7 | 2007-04-26 10:21:15 +0200 | [diff] [blame] | 338 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 339 | io_u->file = NULL; |
| 340 | list_del(&io_u->list); |
| 341 | list_add(&io_u->list, &td->io_u_freelist); |
| 342 | td->cur_depth--; |
| 343 | } |
| 344 | |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 345 | void requeue_io_u(struct thread_data *td, struct io_u **io_u) |
| 346 | { |
| 347 | struct io_u *__io_u = *io_u; |
| 348 | |
Jens Axboe | 4d2e0f4 | 2007-02-24 13:31:57 +0100 | [diff] [blame] | 349 | __io_u->flags |= IO_U_F_FREE; |
Jens Axboe | e4f54ad | 2008-02-04 10:56:07 +0100 | [diff] [blame] | 350 | if ((__io_u->flags & IO_U_F_FLIGHT) && (__io_u->ddir != DDIR_SYNC)) |
| 351 | td->io_issues[__io_u->ddir]--; |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 352 | |
Jens Axboe | 4d2e0f4 | 2007-02-24 13:31:57 +0100 | [diff] [blame] | 353 | __io_u->flags &= ~IO_U_F_FLIGHT; |
| 354 | |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 355 | list_del(&__io_u->list); |
| 356 | list_add_tail(&__io_u->list, &td->io_u_requeues); |
| 357 | td->cur_depth--; |
| 358 | *io_u = NULL; |
| 359 | } |
| 360 | |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 361 | 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] | 362 | { |
Jens Axboe | b4c5e1a | 2007-10-25 18:44:45 +0200 | [diff] [blame] | 363 | if (td->io_ops->flags & FIO_NOIO) |
| 364 | goto out; |
| 365 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 366 | /* |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 367 | * see if it's time to sync |
| 368 | */ |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 369 | if (td->o.fsync_blocks && |
| 370 | !(td->io_issues[DDIR_WRITE] % td->o.fsync_blocks) && |
| 371 | td->io_issues[DDIR_WRITE] && should_fsync(td)) { |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 372 | io_u->ddir = DDIR_SYNC; |
Jens Axboe | c38e946 | 2007-03-27 08:48:48 +0200 | [diff] [blame] | 373 | goto out; |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 374 | } |
| 375 | |
Jens Axboe | a00735e | 2006-11-03 08:58:08 +0100 | [diff] [blame] | 376 | io_u->ddir = get_rw_ddir(td); |
| 377 | |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 378 | /* |
Jens Axboe | 48f5abd | 2007-07-20 13:25:04 +0200 | [diff] [blame] | 379 | * See if it's time to switch to a new zone |
| 380 | */ |
| 381 | if (td->zone_bytes >= td->o.zone_size) { |
| 382 | td->zone_bytes = 0; |
| 383 | io_u->file->last_pos += td->o.zone_skip; |
| 384 | td->io_skip_bytes += td->o.zone_skip; |
| 385 | } |
| 386 | |
| 387 | /* |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 388 | * No log, let the seq/rand engine retrieve the next buflen and |
| 389 | * position. |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 390 | */ |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 391 | if (get_next_offset(td, io_u)) { |
| 392 | dprint(FD_IO, "io_u %p, failed getting offset\n", io_u); |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 393 | return 1; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 394 | } |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 395 | |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 396 | io_u->buflen = get_next_buflen(td, io_u); |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 397 | if (!io_u->buflen) { |
| 398 | dprint(FD_IO, "io_u %p, failed getting buflen\n", io_u); |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 399 | return 1; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 400 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 401 | |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 402 | if (io_u->offset + io_u->buflen > io_u->file->real_file_size) { |
| 403 | dprint(FD_IO, "io_u %p, offset too large\n", io_u); |
Jens Axboe | 4ba6613 | 2008-02-05 10:05:50 +0100 | [diff] [blame] | 404 | dprint(FD_IO, " off=%llu/%lu > %llu\n", io_u->offset, |
| 405 | io_u->buflen, io_u->file->real_file_size); |
Jens Axboe | 6a5e688 | 2007-07-26 10:47:51 +0200 | [diff] [blame] | 406 | return 1; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 407 | } |
Jens Axboe | 6a5e688 | 2007-07-26 10:47:51 +0200 | [diff] [blame] | 408 | |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 409 | /* |
| 410 | * mark entry before potentially trimming io_u |
| 411 | */ |
Jens Axboe | 303032a | 2008-03-26 10:11:10 +0100 | [diff] [blame] | 412 | if (td_random(td) && file_randommap(td, io_u->file)) |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 413 | mark_random_map(td, io_u); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 414 | |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 415 | /* |
| 416 | * If using a write iolog, store this entry. |
| 417 | */ |
Jens Axboe | c38e946 | 2007-03-27 08:48:48 +0200 | [diff] [blame] | 418 | out: |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 419 | dprint_io_u(io_u, "fill_io_u"); |
Jens Axboe | d9d91e3 | 2008-01-31 13:25:42 +0100 | [diff] [blame] | 420 | td->zone_bytes += io_u->buflen; |
Jens Axboe | f29b25a | 2007-07-23 08:56:43 +0200 | [diff] [blame] | 421 | log_io_u(td, io_u); |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 422 | return 0; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 423 | } |
| 424 | |
Jens Axboe | d800575 | 2008-05-15 09:49:09 +0200 | [diff] [blame] | 425 | void io_u_mark_depth(struct thread_data *td, unsigned int nr) |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 426 | { |
| 427 | int index = 0; |
| 428 | |
| 429 | switch (td->cur_depth) { |
| 430 | default: |
Jens Axboe | a783e61 | 2007-06-19 09:50:28 +0200 | [diff] [blame] | 431 | index = 6; |
| 432 | break; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 433 | case 32 ... 63: |
Jens Axboe | a783e61 | 2007-06-19 09:50:28 +0200 | [diff] [blame] | 434 | index = 5; |
| 435 | break; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 436 | case 16 ... 31: |
Jens Axboe | a783e61 | 2007-06-19 09:50:28 +0200 | [diff] [blame] | 437 | index = 4; |
| 438 | break; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 439 | case 8 ... 15: |
Jens Axboe | a783e61 | 2007-06-19 09:50:28 +0200 | [diff] [blame] | 440 | index = 3; |
| 441 | break; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 442 | case 4 ... 7: |
Jens Axboe | a783e61 | 2007-06-19 09:50:28 +0200 | [diff] [blame] | 443 | index = 2; |
| 444 | break; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 445 | case 2 ... 3: |
Jens Axboe | a783e61 | 2007-06-19 09:50:28 +0200 | [diff] [blame] | 446 | index = 1; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 447 | case 1: |
| 448 | break; |
| 449 | } |
| 450 | |
Jens Axboe | 3bec7ae | 2008-05-14 21:08:37 +0200 | [diff] [blame] | 451 | td->ts.io_u_map[index] += nr; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 452 | } |
| 453 | |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 454 | static void io_u_mark_lat_usec(struct thread_data *td, unsigned long usec) |
| 455 | { |
| 456 | int index = 0; |
| 457 | |
| 458 | assert(usec < 1000); |
| 459 | |
| 460 | switch (usec) { |
| 461 | case 750 ... 999: |
| 462 | index = 9; |
| 463 | break; |
| 464 | case 500 ... 749: |
| 465 | index = 8; |
| 466 | break; |
| 467 | case 250 ... 499: |
| 468 | index = 7; |
| 469 | break; |
| 470 | case 100 ... 249: |
| 471 | index = 6; |
| 472 | break; |
| 473 | case 50 ... 99: |
| 474 | index = 5; |
| 475 | break; |
| 476 | case 20 ... 49: |
| 477 | index = 4; |
| 478 | break; |
| 479 | case 10 ... 19: |
| 480 | index = 3; |
| 481 | break; |
| 482 | case 4 ... 9: |
| 483 | index = 2; |
| 484 | break; |
| 485 | case 2 ... 3: |
| 486 | index = 1; |
| 487 | case 0 ... 1: |
| 488 | break; |
| 489 | } |
| 490 | |
| 491 | assert(index < FIO_IO_U_LAT_U_NR); |
| 492 | td->ts.io_u_lat_u[index]++; |
| 493 | } |
| 494 | |
| 495 | 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] | 496 | { |
| 497 | int index = 0; |
| 498 | |
| 499 | switch (msec) { |
| 500 | default: |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 501 | index = 11; |
| 502 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 503 | case 1000 ... 1999: |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 504 | index = 10; |
| 505 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 506 | case 750 ... 999: |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 507 | index = 9; |
| 508 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 509 | case 500 ... 749: |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 510 | index = 8; |
| 511 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 512 | case 250 ... 499: |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 513 | index = 7; |
| 514 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 515 | case 100 ... 249: |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 516 | index = 6; |
| 517 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 518 | case 50 ... 99: |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 519 | index = 5; |
| 520 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 521 | case 20 ... 49: |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 522 | index = 4; |
| 523 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 524 | case 10 ... 19: |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 525 | index = 3; |
| 526 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 527 | case 4 ... 9: |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 528 | index = 2; |
| 529 | break; |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 530 | case 2 ... 3: |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 531 | index = 1; |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 532 | case 0 ... 1: |
| 533 | break; |
| 534 | } |
| 535 | |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 536 | assert(index < FIO_IO_U_LAT_M_NR); |
| 537 | td->ts.io_u_lat_m[index]++; |
| 538 | } |
| 539 | |
| 540 | static void io_u_mark_latency(struct thread_data *td, unsigned long usec) |
| 541 | { |
| 542 | if (usec < 1000) |
| 543 | io_u_mark_lat_usec(td, usec); |
| 544 | else |
| 545 | io_u_mark_lat_msec(td, usec / 1000); |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 546 | } |
| 547 | |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 548 | /* |
| 549 | * Get next file to service by choosing one at random |
| 550 | */ |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 551 | static struct fio_file *get_next_file_rand(struct thread_data *td, int goodf, |
| 552 | int badf) |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 553 | { |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 554 | struct fio_file *f; |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 555 | int fno; |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 556 | |
| 557 | do { |
Jens Axboe | 7c83c08 | 2007-03-01 10:04:15 +0100 | [diff] [blame] | 558 | long r = os_random_long(&td->next_file_state); |
| 559 | |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 560 | fno = (unsigned int) ((double) td->o.nr_files |
| 561 | * (r / (RAND_MAX + 1.0))); |
Jens Axboe | 126d65c | 2008-03-01 18:04:31 +0100 | [diff] [blame] | 562 | f = td->files[fno]; |
Jens Axboe | 059e63c | 2007-03-27 20:34:47 +0200 | [diff] [blame] | 563 | if (f->flags & FIO_FILE_DONE) |
| 564 | continue; |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 565 | |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 566 | if ((!goodf || (f->flags & goodf)) && !(f->flags & badf)) { |
| 567 | dprint(FD_FILE, "get_next_file_rand: %p\n", f); |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 568 | return f; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 569 | } |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 570 | } while (1); |
| 571 | } |
| 572 | |
| 573 | /* |
| 574 | * Get next file to service by doing round robin between all available ones |
| 575 | */ |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 576 | static struct fio_file *get_next_file_rr(struct thread_data *td, int goodf, |
| 577 | int badf) |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 578 | { |
| 579 | unsigned int old_next_file = td->next_file; |
| 580 | struct fio_file *f; |
| 581 | |
| 582 | do { |
Jens Axboe | 126d65c | 2008-03-01 18:04:31 +0100 | [diff] [blame] | 583 | f = td->files[td->next_file]; |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 584 | |
| 585 | td->next_file++; |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 586 | if (td->next_file >= td->o.nr_files) |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 587 | td->next_file = 0; |
| 588 | |
Jens Axboe | d5ed68e | 2007-03-28 09:33:43 +0200 | [diff] [blame] | 589 | if (f->flags & FIO_FILE_DONE) { |
| 590 | f = NULL; |
Jens Axboe | 059e63c | 2007-03-27 20:34:47 +0200 | [diff] [blame] | 591 | continue; |
Jens Axboe | d5ed68e | 2007-03-28 09:33:43 +0200 | [diff] [blame] | 592 | } |
Jens Axboe | 059e63c | 2007-03-27 20:34:47 +0200 | [diff] [blame] | 593 | |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 594 | if ((!goodf || (f->flags & goodf)) && !(f->flags & badf)) |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 595 | break; |
| 596 | |
| 597 | f = NULL; |
| 598 | } while (td->next_file != old_next_file); |
| 599 | |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 600 | dprint(FD_FILE, "get_next_file_rr: %p\n", f); |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 601 | return f; |
| 602 | } |
| 603 | |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 604 | static struct fio_file *get_next_file(struct thread_data *td) |
| 605 | { |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 606 | struct fio_file *f; |
| 607 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 608 | assert(td->o.nr_files <= td->files_index); |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 609 | |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 610 | if (!td->nr_open_files || td->nr_done_files >= td->o.nr_files) { |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 611 | dprint(FD_FILE, "get_next_file: nr_open=%d, nr_done=%d," |
| 612 | " nr_files=%d\n", td->nr_open_files, |
| 613 | td->nr_done_files, |
| 614 | td->o.nr_files); |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 615 | return NULL; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 616 | } |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 617 | |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 618 | f = td->file_service_file; |
Jens Axboe | f11bd94 | 2007-03-13 10:16:34 +0100 | [diff] [blame] | 619 | if (f && (f->flags & FIO_FILE_OPEN) && td->file_service_left--) |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 620 | goto out; |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 621 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 622 | if (td->o.file_service_type == FIO_FSERVICE_RR) |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 623 | f = get_next_file_rr(td, FIO_FILE_OPEN, FIO_FILE_CLOSING); |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 624 | else |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 625 | f = get_next_file_rand(td, FIO_FILE_OPEN, FIO_FILE_CLOSING); |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 626 | |
| 627 | td->file_service_file = f; |
| 628 | td->file_service_left = td->file_service_nr - 1; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 629 | out: |
| 630 | dprint(FD_FILE, "get_next_file: %p\n", f); |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 631 | return f; |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 632 | } |
| 633 | |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 634 | static struct fio_file *find_next_new_file(struct thread_data *td) |
| 635 | { |
| 636 | struct fio_file *f; |
| 637 | |
Jens Axboe | 1020a13 | 2007-03-29 11:15:06 +0200 | [diff] [blame] | 638 | if (!td->nr_open_files || td->nr_done_files >= td->o.nr_files) |
| 639 | return NULL; |
| 640 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 641 | if (td->o.file_service_type == FIO_FSERVICE_RR) |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 642 | f = get_next_file_rr(td, 0, FIO_FILE_OPEN); |
| 643 | else |
| 644 | f = get_next_file_rand(td, 0, FIO_FILE_OPEN); |
| 645 | |
| 646 | return f; |
| 647 | } |
| 648 | |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 649 | static int set_io_u_file(struct thread_data *td, struct io_u *io_u) |
| 650 | { |
| 651 | struct fio_file *f; |
| 652 | |
| 653 | do { |
| 654 | f = get_next_file(td); |
| 655 | if (!f) |
| 656 | return 1; |
| 657 | |
| 658 | set_file: |
| 659 | io_u->file = f; |
| 660 | get_file(f); |
| 661 | |
| 662 | if (!fill_io_u(td, io_u)) |
| 663 | break; |
| 664 | |
| 665 | /* |
Jens Axboe | 009bd84 | 2008-05-15 10:19:46 +0200 | [diff] [blame] | 666 | * optimization to prevent close/open of the same file. This |
| 667 | * way we preserve queueing etc. |
| 668 | */ |
| 669 | if (td->o.nr_files == 1 && td->o.time_based) { |
Jens Axboe | 60f2c65 | 2008-05-16 12:31:36 +0200 | [diff] [blame] | 670 | put_file_log(td, f); |
Jens Axboe | 009bd84 | 2008-05-15 10:19:46 +0200 | [diff] [blame] | 671 | fio_file_reset(f); |
| 672 | goto set_file; |
| 673 | } |
| 674 | |
| 675 | /* |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 676 | * td_io_close() does a put_file() as well, so no need to |
| 677 | * do that here. |
| 678 | */ |
| 679 | io_u->file = NULL; |
| 680 | td_io_close_file(td, f); |
| 681 | f->flags |= FIO_FILE_DONE; |
| 682 | td->nr_done_files++; |
| 683 | |
| 684 | /* |
| 685 | * probably not the right place to do this, but see |
| 686 | * if we need to open a new file |
| 687 | */ |
| 688 | if (td->nr_open_files < td->o.open_files && |
| 689 | td->o.open_files != td->o.nr_files) { |
| 690 | f = find_next_new_file(td); |
| 691 | |
| 692 | if (!f || td_io_open_file(td, f)) |
| 693 | return 1; |
| 694 | |
| 695 | goto set_file; |
| 696 | } |
| 697 | } while (1); |
| 698 | |
| 699 | return 0; |
| 700 | } |
| 701 | |
| 702 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 703 | struct io_u *__get_io_u(struct thread_data *td) |
| 704 | { |
| 705 | struct io_u *io_u = NULL; |
| 706 | |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 707 | if (!list_empty(&td->io_u_requeues)) |
| 708 | io_u = list_entry(td->io_u_requeues.next, struct io_u, list); |
| 709 | else if (!queue_full(td)) { |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 710 | io_u = list_entry(td->io_u_freelist.next, struct io_u, list); |
| 711 | |
Jens Axboe | 6040dab | 2006-10-24 19:38:15 +0200 | [diff] [blame] | 712 | io_u->buflen = 0; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 713 | io_u->resid = 0; |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 714 | io_u->file = NULL; |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 715 | io_u->end_io = NULL; |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 716 | } |
| 717 | |
| 718 | if (io_u) { |
Jens Axboe | 0c6e751 | 2007-02-22 11:19:39 +0100 | [diff] [blame] | 719 | assert(io_u->flags & IO_U_F_FREE); |
| 720 | io_u->flags &= ~IO_U_F_FREE; |
| 721 | |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 722 | io_u->error = 0; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 723 | list_del(&io_u->list); |
| 724 | list_add(&io_u->list, &td->io_u_busylist); |
| 725 | td->cur_depth++; |
| 726 | } |
| 727 | |
| 728 | return io_u; |
| 729 | } |
| 730 | |
| 731 | /* |
| 732 | * Return an io_u to be processed. Gets a buflen and offset, sets direction, |
| 733 | * etc. The returned io_u is fully ready to be prepped and submitted. |
| 734 | */ |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 735 | struct io_u *get_io_u(struct thread_data *td) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 736 | { |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 737 | struct fio_file *f; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 738 | struct io_u *io_u; |
| 739 | |
| 740 | io_u = __get_io_u(td); |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 741 | if (!io_u) { |
| 742 | dprint(FD_IO, "__get_io_u failed\n"); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 743 | return NULL; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 744 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 745 | |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 746 | /* |
| 747 | * from a requeue, io_u already setup |
| 748 | */ |
| 749 | if (io_u->file) |
Jens Axboe | 77f392b | 2007-02-19 20:13:09 +0100 | [diff] [blame] | 750 | goto out; |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 751 | |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 752 | /* |
| 753 | * If using an iolog, grab next piece if any available. |
| 754 | */ |
| 755 | if (td->o.read_iolog_file) { |
| 756 | if (read_iolog_get(td, io_u)) |
| 757 | goto err_put; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 758 | } else if (set_io_u_file(td, io_u)) { |
| 759 | dprint(FD_IO, "io_u %p, setting file failed\n", io_u); |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 760 | goto err_put; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 761 | } |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 762 | |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 763 | f = io_u->file; |
| 764 | assert(f->flags & FIO_FILE_OPEN); |
Jens Axboe | 97af62c | 2007-05-22 11:12:13 +0200 | [diff] [blame] | 765 | |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 766 | if (io_u->ddir != DDIR_SYNC) { |
Jens Axboe | d0656a9 | 2008-02-01 18:33:23 +0100 | [diff] [blame] | 767 | if (!io_u->buflen && !(td->io_ops->flags & FIO_NOIO)) { |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 768 | 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] | 769 | goto err_put; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 770 | } |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 771 | |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 772 | f->last_pos = io_u->offset + io_u->buflen; |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 773 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 774 | if (td->o.verify != VERIFY_NONE) |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 775 | populate_verify_io_u(td, io_u); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 776 | } |
| 777 | |
Jens Axboe | 165faf1 | 2007-02-07 11:30:37 +0100 | [diff] [blame] | 778 | /* |
| 779 | * Set io data pointers. |
| 780 | */ |
Jens Axboe | d460eb3 | 2007-04-16 21:39:33 +0200 | [diff] [blame] | 781 | io_u->endpos = io_u->offset + io_u->buflen; |
Jens Axboe | cec6b55 | 2007-02-06 20:15:38 +0100 | [diff] [blame] | 782 | io_u->xfer_buf = io_u->buf; |
| 783 | io_u->xfer_buflen = io_u->buflen; |
Jens Axboe | 5973caf | 2008-05-21 19:52:35 +0200 | [diff] [blame^] | 784 | |
| 785 | if (td->o.refill_buffers && io_u->ddir == DDIR_WRITE) |
| 786 | io_u_fill_buffer(td, io_u, io_u->xfer_buflen); |
Jens Axboe | 6ac7a33 | 2008-03-01 15:22:32 +0100 | [diff] [blame] | 787 | out: |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 788 | if (!td_io_prep(td, io_u)) { |
| 789 | fio_gettime(&io_u->start_time, NULL); |
| 790 | return io_u; |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 791 | } |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 792 | err_put: |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 793 | dprint(FD_IO, "get_io_u failed\n"); |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 794 | put_io_u(td, io_u); |
| 795 | return NULL; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 796 | } |
| 797 | |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 798 | void io_u_log_error(struct thread_data *td, struct io_u *io_u) |
| 799 | { |
| 800 | const char *msg[] = { "read", "write", "sync" }; |
| 801 | |
| 802 | log_err("fio: io_u error"); |
| 803 | |
| 804 | if (io_u->file) |
| 805 | log_err(" on file %s", io_u->file->file_name); |
| 806 | |
| 807 | log_err(": %s\n", strerror(io_u->error)); |
| 808 | |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 809 | log_err(" %s offset=%llu, buflen=%lu\n", msg[io_u->ddir], |
| 810 | io_u->offset, io_u->xfer_buflen); |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 811 | |
| 812 | if (!td->error) |
| 813 | td_verror(td, io_u->error, "io_u error"); |
| 814 | } |
| 815 | |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 816 | static void io_completed(struct thread_data *td, struct io_u *io_u, |
| 817 | struct io_completion_data *icd) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 818 | { |
Jens Axboe | d85f511 | 2007-06-18 09:41:23 +0200 | [diff] [blame] | 819 | unsigned long usec; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 820 | |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 821 | dprint_io_u(io_u, "io complete"); |
| 822 | |
Jens Axboe | 0c6e751 | 2007-02-22 11:19:39 +0100 | [diff] [blame] | 823 | assert(io_u->flags & IO_U_F_FLIGHT); |
| 824 | io_u->flags &= ~IO_U_F_FLIGHT; |
| 825 | |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 826 | if (io_u->ddir == DDIR_SYNC) { |
| 827 | td->last_was_sync = 1; |
| 828 | return; |
| 829 | } |
| 830 | |
| 831 | td->last_was_sync = 0; |
| 832 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 833 | if (!io_u->error) { |
| 834 | unsigned int bytes = io_u->buflen - io_u->resid; |
Jens Axboe | 1e97cce | 2006-12-05 11:44:16 +0100 | [diff] [blame] | 835 | const enum fio_ddir idx = io_u->ddir; |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 836 | int ret; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 837 | |
| 838 | td->io_blocks[idx]++; |
| 839 | td->io_bytes[idx] += bytes; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 840 | td->this_io_bytes[idx] += bytes; |
| 841 | |
Jens Axboe | d85f511 | 2007-06-18 09:41:23 +0200 | [diff] [blame] | 842 | usec = utime_since(&io_u->issue_time, &icd->time); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 843 | |
Jens Axboe | d85f511 | 2007-06-18 09:41:23 +0200 | [diff] [blame] | 844 | add_clat_sample(td, idx, usec); |
Jens Axboe | 02bcaa8 | 2006-11-24 10:42:00 +0100 | [diff] [blame] | 845 | add_bw_sample(td, idx, &icd->time); |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 846 | io_u_mark_latency(td, usec); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 847 | |
Jens Axboe | 660a1cb | 2007-04-17 15:37:47 +0200 | [diff] [blame] | 848 | if (td_write(td) && idx == DDIR_WRITE && |
Shawn Lewis | 8670579 | 2007-11-21 09:35:41 +0100 | [diff] [blame] | 849 | td->o.do_verify && |
Jens Axboe | 4112840 | 2007-03-27 08:32:48 +0200 | [diff] [blame] | 850 | td->o.verify != VERIFY_NONE) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 851 | log_io_piece(td, io_u); |
| 852 | |
| 853 | icd->bytes_done[idx] += bytes; |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 854 | |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 855 | if (io_u->end_io) { |
Jens Axboe | 36690c9 | 2007-03-26 10:23:34 +0200 | [diff] [blame] | 856 | ret = io_u->end_io(td, io_u); |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 857 | if (ret && !icd->error) |
| 858 | icd->error = ret; |
| 859 | } |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 860 | } else { |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 861 | icd->error = io_u->error; |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 862 | io_u_log_error(td, io_u); |
| 863 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 864 | } |
| 865 | |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 866 | static void init_icd(struct io_completion_data *icd, int nr) |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 867 | { |
| 868 | fio_gettime(&icd->time, NULL); |
| 869 | |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 870 | icd->nr = nr; |
| 871 | |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 872 | icd->error = 0; |
| 873 | icd->bytes_done[0] = icd->bytes_done[1] = 0; |
| 874 | } |
| 875 | |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 876 | static void ios_completed(struct thread_data *td, |
| 877 | struct io_completion_data *icd) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 878 | { |
| 879 | struct io_u *io_u; |
| 880 | int i; |
| 881 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 882 | for (i = 0; i < icd->nr; i++) { |
| 883 | io_u = td->io_ops->event(td, i); |
| 884 | |
| 885 | io_completed(td, io_u, icd); |
| 886 | put_io_u(td, io_u); |
| 887 | } |
| 888 | } |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 889 | |
Jens Axboe | e7e6cfb | 2007-02-20 10:58:34 +0100 | [diff] [blame] | 890 | /* |
| 891 | * Complete a single io_u for the sync engines. |
| 892 | */ |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 893 | long io_u_sync_complete(struct thread_data *td, struct io_u *io_u) |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 894 | { |
| 895 | struct io_completion_data icd; |
| 896 | |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 897 | init_icd(&icd, 1); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 898 | io_completed(td, io_u, &icd); |
| 899 | put_io_u(td, io_u); |
| 900 | |
| 901 | if (!icd.error) |
| 902 | return icd.bytes_done[0] + icd.bytes_done[1]; |
| 903 | |
Jens Axboe | 37e974a | 2007-03-02 15:16:45 +0100 | [diff] [blame] | 904 | td_verror(td, icd.error, "io_u_sync_complete"); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 905 | return -1; |
| 906 | } |
| 907 | |
Jens Axboe | e7e6cfb | 2007-02-20 10:58:34 +0100 | [diff] [blame] | 908 | /* |
| 909 | * Called to complete min_events number of io for the async engines. |
| 910 | */ |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 911 | long io_u_queued_complete(struct thread_data *td, int min_events) |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 912 | { |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 913 | struct io_completion_data icd; |
Jens Axboe | 00de55e | 2007-02-20 10:45:57 +0100 | [diff] [blame] | 914 | struct timespec *tvp = NULL; |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 915 | int ret; |
Davide Libenzi | 4d06a33 | 2007-03-22 07:43:50 +0100 | [diff] [blame] | 916 | struct timespec ts = { .tv_sec = 0, .tv_nsec = 0, }; |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 917 | |
Jens Axboe | b271fe6 | 2008-02-04 10:49:41 +0100 | [diff] [blame] | 918 | dprint(FD_IO, "io_u_queued_completed: min=%d\n", min_events); |
| 919 | |
Davide Libenzi | 4d06a33 | 2007-03-22 07:43:50 +0100 | [diff] [blame] | 920 | if (!min_events) |
Jens Axboe | 00de55e | 2007-02-20 10:45:57 +0100 | [diff] [blame] | 921 | tvp = &ts; |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 922 | |
Jens Axboe | 00de55e | 2007-02-20 10:45:57 +0100 | [diff] [blame] | 923 | ret = td_io_getevents(td, min_events, td->cur_depth, tvp); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 924 | if (ret < 0) { |
Jens Axboe | e1161c3 | 2007-02-22 19:36:48 +0100 | [diff] [blame] | 925 | td_verror(td, -ret, "td_io_getevents"); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 926 | return ret; |
| 927 | } else if (!ret) |
| 928 | return ret; |
| 929 | |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 930 | init_icd(&icd, ret); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 931 | ios_completed(td, &icd); |
| 932 | if (!icd.error) |
| 933 | return icd.bytes_done[0] + icd.bytes_done[1]; |
| 934 | |
Jens Axboe | 37e974a | 2007-03-02 15:16:45 +0100 | [diff] [blame] | 935 | td_verror(td, icd.error, "io_u_queued_complete"); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 936 | return -1; |
| 937 | } |
Jens Axboe | 7e77dd0 | 2007-02-20 10:57:34 +0100 | [diff] [blame] | 938 | |
| 939 | /* |
| 940 | * Call when io_u is really queued, to update the submission latency. |
| 941 | */ |
| 942 | void io_u_queued(struct thread_data *td, struct io_u *io_u) |
| 943 | { |
| 944 | unsigned long slat_time; |
| 945 | |
Jens Axboe | d85f511 | 2007-06-18 09:41:23 +0200 | [diff] [blame] | 946 | slat_time = utime_since(&io_u->start_time, &io_u->issue_time); |
Jens Axboe | 7e77dd0 | 2007-02-20 10:57:34 +0100 | [diff] [blame] | 947 | add_slat_sample(td, io_u->ddir, slat_time); |
| 948 | } |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 949 | |
Jens Axboe | 5973caf | 2008-05-21 19:52:35 +0200 | [diff] [blame^] | 950 | /* |
| 951 | * "randomly" fill the buffer contents |
| 952 | */ |
| 953 | void io_u_fill_buffer(struct thread_data *td, struct io_u *io_u, |
| 954 | unsigned int max_bs) |
| 955 | { |
| 956 | long *ptr = io_u->buf; |
| 957 | |
| 958 | if (!td->o.zero_buffers) { |
| 959 | while ((void *) ptr - io_u->buf < max_bs) { |
| 960 | *ptr = rand() * GOLDEN_RATIO_PRIME; |
| 961 | ptr++; |
| 962 | } |
| 963 | } else |
| 964 | memset(ptr, 0, max_bs); |
| 965 | } |
| 966 | |
Jens Axboe | 55bc972 | 2007-02-22 11:30:05 +0100 | [diff] [blame] | 967 | #ifdef FIO_USE_TIMEOUT |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 968 | void io_u_set_timeout(struct thread_data *td) |
| 969 | { |
| 970 | assert(td->cur_depth); |
| 971 | |
| 972 | td->timer.it_interval.tv_sec = 0; |
| 973 | td->timer.it_interval.tv_usec = 0; |
| 974 | td->timer.it_value.tv_sec = IO_U_TIMEOUT + IO_U_TIMEOUT_INC; |
| 975 | td->timer.it_value.tv_usec = 0; |
| 976 | setitimer(ITIMER_REAL, &td->timer, NULL); |
| 977 | fio_gettime(&td->timeout_end, NULL); |
| 978 | } |
Jens Axboe | 5945b9b | 2007-02-22 20:33:01 +0100 | [diff] [blame] | 979 | |
| 980 | static void io_u_dump(struct io_u *io_u) |
| 981 | { |
| 982 | unsigned long t_start = mtime_since_now(&io_u->start_time); |
| 983 | unsigned long t_issue = mtime_since_now(&io_u->issue_time); |
| 984 | |
| 985 | log_err("io_u=%p, t_start=%lu, t_issue=%lu\n", io_u, t_start, t_issue); |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 986 | log_err(" buf=%p/%p, len=%lu/%lu, offset=%llu\n", io_u->buf, |
| 987 | io_u->xfer_buf, io_u->buflen, |
| 988 | io_u->xfer_buflen, |
| 989 | io_u->offset); |
Jens Axboe | 5945b9b | 2007-02-22 20:33:01 +0100 | [diff] [blame] | 990 | log_err(" ddir=%d, fname=%s\n", io_u->ddir, io_u->file->file_name); |
| 991 | } |
Jens Axboe | 55bc972 | 2007-02-22 11:30:05 +0100 | [diff] [blame] | 992 | #else |
| 993 | void io_u_set_timeout(struct thread_data fio_unused *td) |
| 994 | { |
| 995 | } |
| 996 | #endif |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 997 | |
Jens Axboe | 55bc972 | 2007-02-22 11:30:05 +0100 | [diff] [blame] | 998 | #ifdef FIO_USE_TIMEOUT |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 999 | static void io_u_timeout_handler(int fio_unused sig) |
| 1000 | { |
| 1001 | struct thread_data *td, *__td; |
| 1002 | pid_t pid = getpid(); |
Jens Axboe | 5945b9b | 2007-02-22 20:33:01 +0100 | [diff] [blame] | 1003 | struct list_head *entry; |
| 1004 | struct io_u *io_u; |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 1005 | int i; |
| 1006 | |
| 1007 | log_err("fio: io_u timeout\n"); |
| 1008 | |
| 1009 | /* |
| 1010 | * TLS would be nice... |
| 1011 | */ |
| 1012 | td = NULL; |
| 1013 | for_each_td(__td, i) { |
| 1014 | if (__td->pid == pid) { |
| 1015 | td = __td; |
| 1016 | break; |
| 1017 | } |
| 1018 | } |
| 1019 | |
| 1020 | if (!td) { |
| 1021 | log_err("fio: io_u timeout, can't find job\n"); |
| 1022 | exit(1); |
| 1023 | } |
| 1024 | |
| 1025 | if (!td->cur_depth) { |
| 1026 | log_err("fio: timeout without pending work?\n"); |
| 1027 | return; |
| 1028 | } |
| 1029 | |
Jens Axboe | 15506d0 | 2007-03-15 15:04:43 +0100 | [diff] [blame] | 1030 | log_err("fio: io_u timeout: job=%s, pid=%d\n", td->o.name, td->pid); |
Jens Axboe | 5945b9b | 2007-02-22 20:33:01 +0100 | [diff] [blame] | 1031 | |
| 1032 | list_for_each(entry, &td->io_u_busylist) { |
| 1033 | io_u = list_entry(entry, struct io_u, list); |
| 1034 | |
| 1035 | io_u_dump(io_u); |
| 1036 | } |
| 1037 | |
| 1038 | td_verror(td, ETIMEDOUT, "io_u timeout"); |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 1039 | exit(1); |
| 1040 | } |
Jens Axboe | 55bc972 | 2007-02-22 11:30:05 +0100 | [diff] [blame] | 1041 | #endif |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 1042 | |
| 1043 | void io_u_init_timeout(void) |
| 1044 | { |
Jens Axboe | 55bc972 | 2007-02-22 11:30:05 +0100 | [diff] [blame] | 1045 | #ifdef FIO_USE_TIMEOUT |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 1046 | signal(SIGALRM, io_u_timeout_handler); |
Jens Axboe | 55bc972 | 2007-02-22 11:30:05 +0100 | [diff] [blame] | 1047 | #endif |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 1048 | } |