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 | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 9 | |
Jens Axboe | 5945b9b | 2007-02-22 20:33:01 +0100 | [diff] [blame] | 10 | /* |
| 11 | * Change this define to play with the timeout handling |
| 12 | */ |
| 13 | #undef FIO_USE_TIMEOUT |
| 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 */ |
| 19 | unsigned long bytes_done[2]; /* output */ |
| 20 | struct timeval time; /* output */ |
| 21 | }; |
| 22 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 23 | /* |
| 24 | * The ->file_map[] contains a map of blocks we have or have not done io |
| 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 | aec2de2 | 2008-04-24 12:44:42 +0200 | [diff] [blame] | 29 | unsigned int idx = RAND_MAP_IDX(f, block); |
| 30 | unsigned int bit = RAND_MAP_BIT(f, block); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 31 | |
Jens Axboe | 84422ac | 2008-02-19 20:10:26 +0100 | [diff] [blame] | 32 | dprint(FD_RANDOM, "free: b=%llu, idx=%u, bit=%u\n", block, idx, bit); |
| 33 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 34 | return (f->file_map[idx] & (1UL << bit)) == 0; |
| 35 | } |
| 36 | |
| 37 | /* |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 38 | * Mark a given offset as used in the map. |
| 39 | */ |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 40 | 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] | 41 | { |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 42 | unsigned int min_bs = td->o.rw_min_bs; |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 43 | struct fio_file *f = io_u->file; |
Jens Axboe | a00735e | 2006-11-03 08:58:08 +0100 | [diff] [blame] | 44 | unsigned long long block; |
| 45 | unsigned int blocks; |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 46 | unsigned int nr_blocks; |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 47 | |
Jens Axboe | b9c5b64 | 2008-02-18 14:13:08 +0100 | [diff] [blame] | 48 | block = (io_u->offset - f->file_offset) / (unsigned long long) min_bs; |
Jens Axboe | a00735e | 2006-11-03 08:58:08 +0100 | [diff] [blame] | 49 | blocks = 0; |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 50 | nr_blocks = (io_u->buflen + min_bs - 1) / min_bs; |
| 51 | |
| 52 | while (blocks < nr_blocks) { |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 53 | unsigned int idx, bit; |
| 54 | |
Jens Axboe | 1e3d53a | 2007-03-22 19:01:48 +0100 | [diff] [blame] | 55 | /* |
| 56 | * If we have a mixed random workload, we may |
| 57 | * encounter blocks we already did IO to. |
| 58 | */ |
Jens Axboe | aec2de2 | 2008-04-24 12:44:42 +0200 | [diff] [blame] | 59 | if ((td->o.ddir_nr == 1) && !random_map_free(f, block)) |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 60 | break; |
| 61 | |
Jens Axboe | aec2de2 | 2008-04-24 12:44:42 +0200 | [diff] [blame] | 62 | idx = RAND_MAP_IDX(f, block); |
| 63 | bit = RAND_MAP_BIT(f, block); |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 64 | |
Jens Axboe | 0032bf9 | 2007-02-13 17:39:56 +0100 | [diff] [blame] | 65 | fio_assert(td, idx < f->num_maps); |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 66 | |
| 67 | f->file_map[idx] |= (1UL << bit); |
| 68 | block++; |
| 69 | blocks++; |
| 70 | } |
| 71 | |
Jens Axboe | a00735e | 2006-11-03 08:58:08 +0100 | [diff] [blame] | 72 | if ((blocks * min_bs) < io_u->buflen) |
| 73 | io_u->buflen = blocks * min_bs; |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 74 | } |
| 75 | |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 76 | static inline unsigned long long last_block(struct thread_data *td, |
Jens Axboe | 4ba6613 | 2008-02-05 10:05:50 +0100 | [diff] [blame] | 77 | struct fio_file *f, |
| 78 | enum fio_ddir ddir) |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 79 | { |
| 80 | unsigned long long max_blocks; |
| 81 | |
Jens Axboe | 84422ac | 2008-02-19 20:10:26 +0100 | [diff] [blame] | 82 | 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] | 83 | if (!max_blocks) |
| 84 | return 0; |
| 85 | |
Jens Axboe | 67778e8 | 2008-05-15 09:20:08 +0200 | [diff] [blame] | 86 | return max_blocks; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 87 | } |
| 88 | |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 89 | /* |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 90 | * Return the next free block in the map. |
| 91 | */ |
| 92 | 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] | 93 | enum fio_ddir ddir, unsigned long long *b) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 94 | { |
Jens Axboe | 84422ac | 2008-02-19 20:10:26 +0100 | [diff] [blame] | 95 | unsigned long long min_bs = td->o.rw_min_bs; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 96 | int i; |
| 97 | |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 98 | i = f->last_free_lookup; |
| 99 | *b = (i * BLOCKS_PER_MAP); |
Jens Axboe | 84422ac | 2008-02-19 20:10:26 +0100 | [diff] [blame] | 100 | while ((*b) * min_bs < f->real_file_size) { |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 101 | if (f->file_map[i] != -1UL) { |
Jens Axboe | b12ebc6 | 2007-05-21 11:42:33 +0200 | [diff] [blame] | 102 | *b += fio_ffz(f->file_map[i]); |
Jens Axboe | 4ba6613 | 2008-02-05 10:05:50 +0100 | [diff] [blame] | 103 | if (*b > last_block(td, f, ddir)) |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 104 | break; |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 105 | f->last_free_lookup = i; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 106 | return 0; |
| 107 | } |
| 108 | |
| 109 | *b += BLOCKS_PER_MAP; |
| 110 | i++; |
| 111 | } |
| 112 | |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 113 | dprint(FD_IO, "failed finding a free block\n"); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 114 | return 1; |
| 115 | } |
| 116 | |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 117 | 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] | 118 | enum fio_ddir ddir, unsigned long long *b) |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 119 | { |
Jens Axboe | 84422ac | 2008-02-19 20:10:26 +0100 | [diff] [blame] | 120 | unsigned long long r; |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 121 | int loops = 5; |
| 122 | |
| 123 | do { |
| 124 | r = os_random_long(&td->random_state); |
Jens Axboe | 84422ac | 2008-02-19 20:10:26 +0100 | [diff] [blame] | 125 | dprint(FD_RANDOM, "off rand %llu\n", r); |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 126 | *b = (last_block(td, f, ddir) - 1) |
| 127 | * (r / ((unsigned long long) RAND_MAX + 1.0)); |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 128 | |
Jens Axboe | 43c63a7 | 2007-05-21 13:23:30 +0200 | [diff] [blame] | 129 | /* |
| 130 | * if we are not maintaining a random map, we are done. |
| 131 | */ |
Jens Axboe | 303032a | 2008-03-26 10:11:10 +0100 | [diff] [blame] | 132 | if (!file_randommap(td, f)) |
Jens Axboe | 43c63a7 | 2007-05-21 13:23:30 +0200 | [diff] [blame] | 133 | return 0; |
| 134 | |
| 135 | /* |
Jens Axboe | 84422ac | 2008-02-19 20:10:26 +0100 | [diff] [blame] | 136 | * calculate map offset and check if it's free |
Jens Axboe | 43c63a7 | 2007-05-21 13:23:30 +0200 | [diff] [blame] | 137 | */ |
Jens Axboe | aec2de2 | 2008-04-24 12:44:42 +0200 | [diff] [blame] | 138 | if (random_map_free(f, *b)) |
Jens Axboe | 43c63a7 | 2007-05-21 13:23:30 +0200 | [diff] [blame] | 139 | return 0; |
| 140 | |
Jens Axboe | 84422ac | 2008-02-19 20:10:26 +0100 | [diff] [blame] | 141 | dprint(FD_RANDOM, "get_next_rand_offset: offset %llu busy\n", |
| 142 | *b); |
Jens Axboe | 43c63a7 | 2007-05-21 13:23:30 +0200 | [diff] [blame] | 143 | } while (--loops); |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 144 | |
| 145 | /* |
Jens Axboe | 43c63a7 | 2007-05-21 13:23:30 +0200 | [diff] [blame] | 146 | * we get here, if we didn't suceed in looking up a block. generate |
| 147 | * a random start offset into the filemap, and find the first free |
| 148 | * block from there. |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 149 | */ |
Jens Axboe | 43c63a7 | 2007-05-21 13:23:30 +0200 | [diff] [blame] | 150 | loops = 10; |
| 151 | do { |
| 152 | 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] | 153 | if (!get_next_free_block(td, f, ddir, b)) |
Jens Axboe | 43c63a7 | 2007-05-21 13:23:30 +0200 | [diff] [blame] | 154 | return 0; |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 155 | |
Jens Axboe | 43c63a7 | 2007-05-21 13:23:30 +0200 | [diff] [blame] | 156 | r = os_random_long(&td->random_state); |
| 157 | } while (--loops); |
| 158 | |
| 159 | /* |
| 160 | * that didn't work either, try exhaustive search from the start |
| 161 | */ |
| 162 | f->last_free_lookup = 0; |
Jens Axboe | 4ba6613 | 2008-02-05 10:05:50 +0100 | [diff] [blame] | 163 | return get_next_free_block(td, f, ddir, b); |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 164 | } |
| 165 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 166 | /* |
| 167 | * For random io, generate a random new block and see if it's used. Repeat |
| 168 | * until we find a free one. For sequential io, just return the end of |
| 169 | * the last io issued. |
| 170 | */ |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 171 | 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] | 172 | { |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 173 | struct fio_file *f = io_u->file; |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 174 | unsigned long long b; |
Jens Axboe | 4ba6613 | 2008-02-05 10:05:50 +0100 | [diff] [blame] | 175 | enum fio_ddir ddir = io_u->ddir; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 176 | |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 177 | if (td_random(td) && (td->o.ddir_nr && !--td->ddir_nr)) { |
| 178 | td->ddir_nr = td->o.ddir_nr; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 179 | |
Jens Axboe | 4ba6613 | 2008-02-05 10:05:50 +0100 | [diff] [blame] | 180 | if (get_next_rand_offset(td, f, ddir, &b)) |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 181 | return 1; |
Jens Axboe | 43063a1 | 2007-03-27 20:21:24 +0200 | [diff] [blame] | 182 | } else { |
ljzhang,Yaxin Hu,Jianchao Tang | 0c3d768 | 2007-07-26 10:59:25 +0200 | [diff] [blame] | 183 | if (f->last_pos >= f->real_file_size) { |
Jens Axboe | 4ba6613 | 2008-02-05 10:05:50 +0100 | [diff] [blame] | 184 | if (!td_random(td) || |
| 185 | get_next_rand_offset(td, f, ddir, &b)) |
ljzhang,Yaxin Hu,Jianchao Tang | 0c3d768 | 2007-07-26 10:59:25 +0200 | [diff] [blame] | 186 | return 1; |
ljzhang,Yaxin Hu,Jianchao Tang | bcdedd0 | 2007-07-27 13:28:26 +0200 | [diff] [blame] | 187 | } else |
Jens Axboe | 4ba6613 | 2008-02-05 10:05:50 +0100 | [diff] [blame] | 188 | b = (f->last_pos - f->file_offset) / td->o.min_bs[ddir]; |
Jens Axboe | 43063a1 | 2007-03-27 20:21:24 +0200 | [diff] [blame] | 189 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 190 | |
Jens Axboe | 009bd84 | 2008-05-15 10:19:46 +0200 | [diff] [blame^] | 191 | io_u->offset = b * td->o.min_bs[ddir]; |
| 192 | if (io_u->offset >= f->io_size) { |
| 193 | dprint(FD_IO, "get_next_offset: offset %llu >= io_size %llu\n", |
| 194 | io_u->offset, f->io_size); |
| 195 | return 1; |
| 196 | } |
| 197 | |
| 198 | io_u->offset += f->file_offset; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 199 | if (io_u->offset >= f->real_file_size) { |
| 200 | dprint(FD_IO, "get_next_offset: offset %llu >= size %llu\n", |
| 201 | io_u->offset, f->real_file_size); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 202 | return 1; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 203 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 204 | |
| 205 | return 0; |
| 206 | } |
| 207 | |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 208 | 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] | 209 | { |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 210 | const int ddir = io_u->ddir; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 211 | unsigned int buflen; |
| 212 | long r; |
| 213 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 214 | if (td->o.min_bs[ddir] == td->o.max_bs[ddir]) |
| 215 | buflen = td->o.min_bs[ddir]; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 216 | else { |
| 217 | r = os_random_long(&td->bsrange_state); |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 218 | if (!td->o.bssplit_nr) { |
| 219 | buflen = (unsigned int) |
| 220 | (1 + (double) (td->o.max_bs[ddir] - 1) |
| 221 | * r / (RAND_MAX + 1.0)); |
| 222 | } else { |
Jens Axboe | 564ca97 | 2007-12-14 12:21:19 +0100 | [diff] [blame] | 223 | long perc = 0; |
| 224 | unsigned int i; |
| 225 | |
| 226 | for (i = 0; i < td->o.bssplit_nr; i++) { |
| 227 | struct bssplit *bsp = &td->o.bssplit[i]; |
| 228 | |
| 229 | buflen = bsp->bs; |
| 230 | perc += bsp->perc; |
| 231 | if (r <= ((LONG_MAX / 100L) * perc)) |
| 232 | break; |
| 233 | } |
| 234 | } |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 235 | if (!td->o.bs_unaligned) { |
| 236 | buflen = (buflen + td->o.min_bs[ddir] - 1) |
| 237 | & ~(td->o.min_bs[ddir] - 1); |
| 238 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 239 | } |
| 240 | |
Jens Axboe | 4ba6613 | 2008-02-05 10:05:50 +0100 | [diff] [blame] | 241 | if (io_u->offset + buflen > io_u->file->real_file_size) { |
| 242 | dprint(FD_IO, "lower buflen %u -> %u (ddir=%d)\n", buflen, |
| 243 | td->o.min_bs[ddir], ddir); |
Jens Axboe | 6a5e688 | 2007-07-26 10:47:51 +0200 | [diff] [blame] | 244 | buflen = td->o.min_bs[ddir]; |
Jens Axboe | 4ba6613 | 2008-02-05 10:05:50 +0100 | [diff] [blame] | 245 | } |
Jens Axboe | 6a5e688 | 2007-07-26 10:47:51 +0200 | [diff] [blame] | 246 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 247 | return buflen; |
| 248 | } |
| 249 | |
Jens Axboe | afe24a5 | 2007-03-16 20:27:27 +0100 | [diff] [blame] | 250 | static void set_rwmix_bytes(struct thread_data *td) |
| 251 | { |
Jens Axboe | e492866 | 2008-04-07 09:19:46 +0200 | [diff] [blame] | 252 | unsigned long issues; |
Jens Axboe | afe24a5 | 2007-03-16 20:27:27 +0100 | [diff] [blame] | 253 | unsigned int diff; |
| 254 | |
| 255 | /* |
| 256 | * we do time or byte based switch. this is needed because |
| 257 | * buffered writes may issue a lot quicker than they complete, |
| 258 | * whereas reads do not. |
| 259 | */ |
Jens Axboe | e492866 | 2008-04-07 09:19:46 +0200 | [diff] [blame] | 260 | issues = td->io_issues[td->rwmix_ddir] - td->rwmix_issues; |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 261 | diff = td->o.rwmix[td->rwmix_ddir ^ 1]; |
Jens Axboe | afe24a5 | 2007-03-16 20:27:27 +0100 | [diff] [blame] | 262 | |
Jens Axboe | e492866 | 2008-04-07 09:19:46 +0200 | [diff] [blame] | 263 | td->rwmix_issues = td->io_issues[td->rwmix_ddir] |
| 264 | + (issues * ((100 - diff)) / diff); |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 265 | } |
| 266 | |
| 267 | static inline enum fio_ddir get_rand_ddir(struct thread_data *td) |
| 268 | { |
| 269 | unsigned int v; |
| 270 | long r; |
| 271 | |
| 272 | r = os_random_long(&td->rwmix_state); |
| 273 | v = 1 + (int) (100.0 * (r / (RAND_MAX + 1.0))); |
| 274 | if (v < td->o.rwmix[DDIR_READ]) |
| 275 | return DDIR_READ; |
| 276 | |
| 277 | return DDIR_WRITE; |
Jens Axboe | afe24a5 | 2007-03-16 20:27:27 +0100 | [diff] [blame] | 278 | } |
| 279 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 280 | /* |
| 281 | * Return the data direction for the next io_u. If the job is a |
| 282 | * mixed read/write workload, check the rwmix cycle and switch if |
| 283 | * necessary. |
| 284 | */ |
Jens Axboe | 1e97cce | 2006-12-05 11:44:16 +0100 | [diff] [blame] | 285 | static enum fio_ddir get_rw_ddir(struct thread_data *td) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 286 | { |
| 287 | if (td_rw(td)) { |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 288 | /* |
| 289 | * Check if it's time to seed a new data direction. |
| 290 | */ |
Jens Axboe | e492866 | 2008-04-07 09:19:46 +0200 | [diff] [blame] | 291 | if (td->io_issues[td->rwmix_ddir] >= td->rwmix_issues) { |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 292 | unsigned long long max_bytes; |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 293 | enum fio_ddir ddir; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 294 | |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 295 | /* |
| 296 | * Put a top limit on how many bytes we do for |
| 297 | * one data direction, to avoid overflowing the |
| 298 | * ranges too much |
| 299 | */ |
| 300 | ddir = get_rand_ddir(td); |
| 301 | max_bytes = td->this_io_bytes[ddir]; |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 302 | if (max_bytes >= |
| 303 | (td->o.size * td->o.rwmix[ddir] / 100)) { |
Jens Axboe | e492866 | 2008-04-07 09:19:46 +0200 | [diff] [blame] | 304 | if (!td->rw_end_set[ddir]) |
Jens Axboe | 38d77ca | 2007-03-21 14:20:20 +0100 | [diff] [blame] | 305 | td->rw_end_set[ddir] = 1; |
Jens Axboe | e492866 | 2008-04-07 09:19:46 +0200 | [diff] [blame] | 306 | |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 307 | ddir ^= 1; |
Jens Axboe | 38d77ca | 2007-03-21 14:20:20 +0100 | [diff] [blame] | 308 | } |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 309 | |
| 310 | if (ddir != td->rwmix_ddir) |
| 311 | set_rwmix_bytes(td); |
| 312 | |
| 313 | td->rwmix_ddir = ddir; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 314 | } |
| 315 | return td->rwmix_ddir; |
| 316 | } else if (td_read(td)) |
| 317 | return DDIR_READ; |
| 318 | else |
| 319 | return DDIR_WRITE; |
| 320 | } |
| 321 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 322 | void put_io_u(struct thread_data *td, struct io_u *io_u) |
| 323 | { |
Jens Axboe | 0c6e751 | 2007-02-22 11:19:39 +0100 | [diff] [blame] | 324 | assert((io_u->flags & IO_U_F_FREE) == 0); |
| 325 | io_u->flags |= IO_U_F_FREE; |
| 326 | |
Jens Axboe | 6977bcd | 2008-03-01 15:55:36 +0100 | [diff] [blame] | 327 | if (io_u->file) { |
| 328 | int ret = put_file(td, io_u->file); |
| 329 | |
| 330 | if (ret) |
| 331 | td_verror(td, ret, "file close"); |
| 332 | } |
Jens Axboe | 2dbdab7 | 2007-04-26 10:21:15 +0200 | [diff] [blame] | 333 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 334 | io_u->file = NULL; |
| 335 | list_del(&io_u->list); |
| 336 | list_add(&io_u->list, &td->io_u_freelist); |
| 337 | td->cur_depth--; |
| 338 | } |
| 339 | |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 340 | void requeue_io_u(struct thread_data *td, struct io_u **io_u) |
| 341 | { |
| 342 | struct io_u *__io_u = *io_u; |
| 343 | |
Jens Axboe | 4d2e0f4 | 2007-02-24 13:31:57 +0100 | [diff] [blame] | 344 | __io_u->flags |= IO_U_F_FREE; |
Jens Axboe | e4f54ad | 2008-02-04 10:56:07 +0100 | [diff] [blame] | 345 | if ((__io_u->flags & IO_U_F_FLIGHT) && (__io_u->ddir != DDIR_SYNC)) |
| 346 | td->io_issues[__io_u->ddir]--; |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 347 | |
Jens Axboe | 4d2e0f4 | 2007-02-24 13:31:57 +0100 | [diff] [blame] | 348 | __io_u->flags &= ~IO_U_F_FLIGHT; |
| 349 | |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 350 | list_del(&__io_u->list); |
| 351 | list_add_tail(&__io_u->list, &td->io_u_requeues); |
| 352 | td->cur_depth--; |
| 353 | *io_u = NULL; |
| 354 | } |
| 355 | |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 356 | 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] | 357 | { |
Jens Axboe | b4c5e1a | 2007-10-25 18:44:45 +0200 | [diff] [blame] | 358 | if (td->io_ops->flags & FIO_NOIO) |
| 359 | goto out; |
| 360 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 361 | /* |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 362 | * see if it's time to sync |
| 363 | */ |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 364 | if (td->o.fsync_blocks && |
| 365 | !(td->io_issues[DDIR_WRITE] % td->o.fsync_blocks) && |
| 366 | td->io_issues[DDIR_WRITE] && should_fsync(td)) { |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 367 | io_u->ddir = DDIR_SYNC; |
Jens Axboe | c38e946 | 2007-03-27 08:48:48 +0200 | [diff] [blame] | 368 | goto out; |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 369 | } |
| 370 | |
Jens Axboe | a00735e | 2006-11-03 08:58:08 +0100 | [diff] [blame] | 371 | io_u->ddir = get_rw_ddir(td); |
| 372 | |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 373 | /* |
Jens Axboe | 48f5abd | 2007-07-20 13:25:04 +0200 | [diff] [blame] | 374 | * See if it's time to switch to a new zone |
| 375 | */ |
| 376 | if (td->zone_bytes >= td->o.zone_size) { |
| 377 | td->zone_bytes = 0; |
| 378 | io_u->file->last_pos += td->o.zone_skip; |
| 379 | td->io_skip_bytes += td->o.zone_skip; |
| 380 | } |
| 381 | |
| 382 | /* |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 383 | * No log, let the seq/rand engine retrieve the next buflen and |
| 384 | * position. |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 385 | */ |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 386 | if (get_next_offset(td, io_u)) { |
| 387 | dprint(FD_IO, "io_u %p, failed getting offset\n", io_u); |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 388 | return 1; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 389 | } |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 390 | |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 391 | io_u->buflen = get_next_buflen(td, io_u); |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 392 | if (!io_u->buflen) { |
| 393 | dprint(FD_IO, "io_u %p, failed getting buflen\n", io_u); |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 394 | return 1; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 395 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 396 | |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 397 | if (io_u->offset + io_u->buflen > io_u->file->real_file_size) { |
| 398 | dprint(FD_IO, "io_u %p, offset too large\n", io_u); |
Jens Axboe | 4ba6613 | 2008-02-05 10:05:50 +0100 | [diff] [blame] | 399 | dprint(FD_IO, " off=%llu/%lu > %llu\n", io_u->offset, |
| 400 | io_u->buflen, io_u->file->real_file_size); |
Jens Axboe | 6a5e688 | 2007-07-26 10:47:51 +0200 | [diff] [blame] | 401 | return 1; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 402 | } |
Jens Axboe | 6a5e688 | 2007-07-26 10:47:51 +0200 | [diff] [blame] | 403 | |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 404 | /* |
| 405 | * mark entry before potentially trimming io_u |
| 406 | */ |
Jens Axboe | 303032a | 2008-03-26 10:11:10 +0100 | [diff] [blame] | 407 | if (td_random(td) && file_randommap(td, io_u->file)) |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 408 | mark_random_map(td, io_u); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 409 | |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 410 | /* |
| 411 | * If using a write iolog, store this entry. |
| 412 | */ |
Jens Axboe | c38e946 | 2007-03-27 08:48:48 +0200 | [diff] [blame] | 413 | out: |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 414 | dprint_io_u(io_u, "fill_io_u"); |
Jens Axboe | d9d91e3 | 2008-01-31 13:25:42 +0100 | [diff] [blame] | 415 | td->zone_bytes += io_u->buflen; |
Jens Axboe | f29b25a | 2007-07-23 08:56:43 +0200 | [diff] [blame] | 416 | log_io_u(td, io_u); |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 417 | return 0; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 418 | } |
| 419 | |
Jens Axboe | d800575 | 2008-05-15 09:49:09 +0200 | [diff] [blame] | 420 | void io_u_mark_depth(struct thread_data *td, unsigned int nr) |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 421 | { |
| 422 | int index = 0; |
| 423 | |
| 424 | switch (td->cur_depth) { |
| 425 | default: |
Jens Axboe | a783e61 | 2007-06-19 09:50:28 +0200 | [diff] [blame] | 426 | index = 6; |
| 427 | break; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 428 | case 32 ... 63: |
Jens Axboe | a783e61 | 2007-06-19 09:50:28 +0200 | [diff] [blame] | 429 | index = 5; |
| 430 | break; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 431 | case 16 ... 31: |
Jens Axboe | a783e61 | 2007-06-19 09:50:28 +0200 | [diff] [blame] | 432 | index = 4; |
| 433 | break; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 434 | case 8 ... 15: |
Jens Axboe | a783e61 | 2007-06-19 09:50:28 +0200 | [diff] [blame] | 435 | index = 3; |
| 436 | break; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 437 | case 4 ... 7: |
Jens Axboe | a783e61 | 2007-06-19 09:50:28 +0200 | [diff] [blame] | 438 | index = 2; |
| 439 | break; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 440 | case 2 ... 3: |
Jens Axboe | a783e61 | 2007-06-19 09:50:28 +0200 | [diff] [blame] | 441 | index = 1; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 442 | case 1: |
| 443 | break; |
| 444 | } |
| 445 | |
Jens Axboe | 3bec7ae | 2008-05-14 21:08:37 +0200 | [diff] [blame] | 446 | td->ts.io_u_map[index] += nr; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 447 | } |
| 448 | |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 449 | static void io_u_mark_lat_usec(struct thread_data *td, unsigned long usec) |
| 450 | { |
| 451 | int index = 0; |
| 452 | |
| 453 | assert(usec < 1000); |
| 454 | |
| 455 | switch (usec) { |
| 456 | case 750 ... 999: |
| 457 | index = 9; |
| 458 | break; |
| 459 | case 500 ... 749: |
| 460 | index = 8; |
| 461 | break; |
| 462 | case 250 ... 499: |
| 463 | index = 7; |
| 464 | break; |
| 465 | case 100 ... 249: |
| 466 | index = 6; |
| 467 | break; |
| 468 | case 50 ... 99: |
| 469 | index = 5; |
| 470 | break; |
| 471 | case 20 ... 49: |
| 472 | index = 4; |
| 473 | break; |
| 474 | case 10 ... 19: |
| 475 | index = 3; |
| 476 | break; |
| 477 | case 4 ... 9: |
| 478 | index = 2; |
| 479 | break; |
| 480 | case 2 ... 3: |
| 481 | index = 1; |
| 482 | case 0 ... 1: |
| 483 | break; |
| 484 | } |
| 485 | |
| 486 | assert(index < FIO_IO_U_LAT_U_NR); |
| 487 | td->ts.io_u_lat_u[index]++; |
| 488 | } |
| 489 | |
| 490 | 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] | 491 | { |
| 492 | int index = 0; |
| 493 | |
| 494 | switch (msec) { |
| 495 | default: |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 496 | index = 11; |
| 497 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 498 | case 1000 ... 1999: |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 499 | index = 10; |
| 500 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 501 | case 750 ... 999: |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 502 | index = 9; |
| 503 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 504 | case 500 ... 749: |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 505 | index = 8; |
| 506 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 507 | case 250 ... 499: |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 508 | index = 7; |
| 509 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 510 | case 100 ... 249: |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 511 | index = 6; |
| 512 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 513 | case 50 ... 99: |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 514 | index = 5; |
| 515 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 516 | case 20 ... 49: |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 517 | index = 4; |
| 518 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 519 | case 10 ... 19: |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 520 | index = 3; |
| 521 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 522 | case 4 ... 9: |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 523 | index = 2; |
| 524 | break; |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 525 | case 2 ... 3: |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 526 | index = 1; |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 527 | case 0 ... 1: |
| 528 | break; |
| 529 | } |
| 530 | |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 531 | assert(index < FIO_IO_U_LAT_M_NR); |
| 532 | td->ts.io_u_lat_m[index]++; |
| 533 | } |
| 534 | |
| 535 | static void io_u_mark_latency(struct thread_data *td, unsigned long usec) |
| 536 | { |
| 537 | if (usec < 1000) |
| 538 | io_u_mark_lat_usec(td, usec); |
| 539 | else |
| 540 | io_u_mark_lat_msec(td, usec / 1000); |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 541 | } |
| 542 | |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 543 | /* |
| 544 | * Get next file to service by choosing one at random |
| 545 | */ |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 546 | static struct fio_file *get_next_file_rand(struct thread_data *td, int goodf, |
| 547 | int badf) |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 548 | { |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 549 | struct fio_file *f; |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 550 | int fno; |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 551 | |
| 552 | do { |
Jens Axboe | 7c83c08 | 2007-03-01 10:04:15 +0100 | [diff] [blame] | 553 | long r = os_random_long(&td->next_file_state); |
| 554 | |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 555 | fno = (unsigned int) ((double) td->o.nr_files |
| 556 | * (r / (RAND_MAX + 1.0))); |
Jens Axboe | 126d65c | 2008-03-01 18:04:31 +0100 | [diff] [blame] | 557 | f = td->files[fno]; |
Jens Axboe | 059e63c | 2007-03-27 20:34:47 +0200 | [diff] [blame] | 558 | if (f->flags & FIO_FILE_DONE) |
| 559 | continue; |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 560 | |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 561 | if ((!goodf || (f->flags & goodf)) && !(f->flags & badf)) { |
| 562 | dprint(FD_FILE, "get_next_file_rand: %p\n", f); |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 563 | return f; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 564 | } |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 565 | } while (1); |
| 566 | } |
| 567 | |
| 568 | /* |
| 569 | * Get next file to service by doing round robin between all available ones |
| 570 | */ |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 571 | static struct fio_file *get_next_file_rr(struct thread_data *td, int goodf, |
| 572 | int badf) |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 573 | { |
| 574 | unsigned int old_next_file = td->next_file; |
| 575 | struct fio_file *f; |
| 576 | |
| 577 | do { |
Jens Axboe | 126d65c | 2008-03-01 18:04:31 +0100 | [diff] [blame] | 578 | f = td->files[td->next_file]; |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 579 | |
| 580 | td->next_file++; |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 581 | if (td->next_file >= td->o.nr_files) |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 582 | td->next_file = 0; |
| 583 | |
Jens Axboe | d5ed68e | 2007-03-28 09:33:43 +0200 | [diff] [blame] | 584 | if (f->flags & FIO_FILE_DONE) { |
| 585 | f = NULL; |
Jens Axboe | 059e63c | 2007-03-27 20:34:47 +0200 | [diff] [blame] | 586 | continue; |
Jens Axboe | d5ed68e | 2007-03-28 09:33:43 +0200 | [diff] [blame] | 587 | } |
Jens Axboe | 059e63c | 2007-03-27 20:34:47 +0200 | [diff] [blame] | 588 | |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 589 | if ((!goodf || (f->flags & goodf)) && !(f->flags & badf)) |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 590 | break; |
| 591 | |
| 592 | f = NULL; |
| 593 | } while (td->next_file != old_next_file); |
| 594 | |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 595 | dprint(FD_FILE, "get_next_file_rr: %p\n", f); |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 596 | return f; |
| 597 | } |
| 598 | |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 599 | static struct fio_file *get_next_file(struct thread_data *td) |
| 600 | { |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 601 | struct fio_file *f; |
| 602 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 603 | assert(td->o.nr_files <= td->files_index); |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 604 | |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 605 | 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] | 606 | dprint(FD_FILE, "get_next_file: nr_open=%d, nr_done=%d," |
| 607 | " nr_files=%d\n", td->nr_open_files, |
| 608 | td->nr_done_files, |
| 609 | td->o.nr_files); |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 610 | return NULL; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 611 | } |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 612 | |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 613 | f = td->file_service_file; |
Jens Axboe | f11bd94 | 2007-03-13 10:16:34 +0100 | [diff] [blame] | 614 | if (f && (f->flags & FIO_FILE_OPEN) && td->file_service_left--) |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 615 | goto out; |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 616 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 617 | if (td->o.file_service_type == FIO_FSERVICE_RR) |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 618 | f = get_next_file_rr(td, FIO_FILE_OPEN, FIO_FILE_CLOSING); |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 619 | else |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 620 | f = get_next_file_rand(td, FIO_FILE_OPEN, FIO_FILE_CLOSING); |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 621 | |
| 622 | td->file_service_file = f; |
| 623 | td->file_service_left = td->file_service_nr - 1; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 624 | out: |
| 625 | dprint(FD_FILE, "get_next_file: %p\n", f); |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 626 | return f; |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 627 | } |
| 628 | |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 629 | static struct fio_file *find_next_new_file(struct thread_data *td) |
| 630 | { |
| 631 | struct fio_file *f; |
| 632 | |
Jens Axboe | 1020a13 | 2007-03-29 11:15:06 +0200 | [diff] [blame] | 633 | if (!td->nr_open_files || td->nr_done_files >= td->o.nr_files) |
| 634 | return NULL; |
| 635 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 636 | if (td->o.file_service_type == FIO_FSERVICE_RR) |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 637 | f = get_next_file_rr(td, 0, FIO_FILE_OPEN); |
| 638 | else |
| 639 | f = get_next_file_rand(td, 0, FIO_FILE_OPEN); |
| 640 | |
| 641 | return f; |
| 642 | } |
| 643 | |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 644 | static int set_io_u_file(struct thread_data *td, struct io_u *io_u) |
| 645 | { |
| 646 | struct fio_file *f; |
| 647 | |
| 648 | do { |
| 649 | f = get_next_file(td); |
| 650 | if (!f) |
| 651 | return 1; |
| 652 | |
| 653 | set_file: |
| 654 | io_u->file = f; |
| 655 | get_file(f); |
| 656 | |
| 657 | if (!fill_io_u(td, io_u)) |
| 658 | break; |
| 659 | |
| 660 | /* |
Jens Axboe | 009bd84 | 2008-05-15 10:19:46 +0200 | [diff] [blame^] | 661 | * optimization to prevent close/open of the same file. This |
| 662 | * way we preserve queueing etc. |
| 663 | */ |
| 664 | if (td->o.nr_files == 1 && td->o.time_based) { |
| 665 | put_file(td, f); |
| 666 | fio_file_reset(f); |
| 667 | goto set_file; |
| 668 | } |
| 669 | |
| 670 | /* |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 671 | * td_io_close() does a put_file() as well, so no need to |
| 672 | * do that here. |
| 673 | */ |
| 674 | io_u->file = NULL; |
| 675 | td_io_close_file(td, f); |
| 676 | f->flags |= FIO_FILE_DONE; |
| 677 | td->nr_done_files++; |
| 678 | |
| 679 | /* |
| 680 | * probably not the right place to do this, but see |
| 681 | * if we need to open a new file |
| 682 | */ |
| 683 | if (td->nr_open_files < td->o.open_files && |
| 684 | td->o.open_files != td->o.nr_files) { |
| 685 | f = find_next_new_file(td); |
| 686 | |
| 687 | if (!f || td_io_open_file(td, f)) |
| 688 | return 1; |
| 689 | |
| 690 | goto set_file; |
| 691 | } |
| 692 | } while (1); |
| 693 | |
| 694 | return 0; |
| 695 | } |
| 696 | |
| 697 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 698 | struct io_u *__get_io_u(struct thread_data *td) |
| 699 | { |
| 700 | struct io_u *io_u = NULL; |
| 701 | |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 702 | if (!list_empty(&td->io_u_requeues)) |
| 703 | io_u = list_entry(td->io_u_requeues.next, struct io_u, list); |
| 704 | else if (!queue_full(td)) { |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 705 | io_u = list_entry(td->io_u_freelist.next, struct io_u, list); |
| 706 | |
Jens Axboe | 6040dab | 2006-10-24 19:38:15 +0200 | [diff] [blame] | 707 | io_u->buflen = 0; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 708 | io_u->resid = 0; |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 709 | io_u->file = NULL; |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 710 | io_u->end_io = NULL; |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 711 | } |
| 712 | |
| 713 | if (io_u) { |
Jens Axboe | 0c6e751 | 2007-02-22 11:19:39 +0100 | [diff] [blame] | 714 | assert(io_u->flags & IO_U_F_FREE); |
| 715 | io_u->flags &= ~IO_U_F_FREE; |
| 716 | |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 717 | io_u->error = 0; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 718 | list_del(&io_u->list); |
| 719 | list_add(&io_u->list, &td->io_u_busylist); |
| 720 | td->cur_depth++; |
| 721 | } |
| 722 | |
| 723 | return io_u; |
| 724 | } |
| 725 | |
| 726 | /* |
| 727 | * Return an io_u to be processed. Gets a buflen and offset, sets direction, |
| 728 | * etc. The returned io_u is fully ready to be prepped and submitted. |
| 729 | */ |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 730 | struct io_u *get_io_u(struct thread_data *td) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 731 | { |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 732 | struct fio_file *f; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 733 | struct io_u *io_u; |
| 734 | |
| 735 | io_u = __get_io_u(td); |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 736 | if (!io_u) { |
| 737 | dprint(FD_IO, "__get_io_u failed\n"); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 738 | return NULL; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 739 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 740 | |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 741 | /* |
| 742 | * from a requeue, io_u already setup |
| 743 | */ |
| 744 | if (io_u->file) |
Jens Axboe | 77f392b | 2007-02-19 20:13:09 +0100 | [diff] [blame] | 745 | goto out; |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 746 | |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 747 | /* |
| 748 | * If using an iolog, grab next piece if any available. |
| 749 | */ |
| 750 | if (td->o.read_iolog_file) { |
| 751 | if (read_iolog_get(td, io_u)) |
| 752 | goto err_put; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 753 | } else if (set_io_u_file(td, io_u)) { |
| 754 | dprint(FD_IO, "io_u %p, setting file failed\n", io_u); |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 755 | goto err_put; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 756 | } |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 757 | |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 758 | f = io_u->file; |
| 759 | assert(f->flags & FIO_FILE_OPEN); |
Jens Axboe | 97af62c | 2007-05-22 11:12:13 +0200 | [diff] [blame] | 760 | |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 761 | if (io_u->ddir != DDIR_SYNC) { |
Jens Axboe | d0656a9 | 2008-02-01 18:33:23 +0100 | [diff] [blame] | 762 | if (!io_u->buflen && !(td->io_ops->flags & FIO_NOIO)) { |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 763 | 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] | 764 | goto err_put; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 765 | } |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 766 | |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 767 | f->last_pos = io_u->offset + io_u->buflen; |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 768 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 769 | if (td->o.verify != VERIFY_NONE) |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 770 | populate_verify_io_u(td, io_u); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 771 | } |
| 772 | |
Jens Axboe | 165faf1 | 2007-02-07 11:30:37 +0100 | [diff] [blame] | 773 | /* |
| 774 | * Set io data pointers. |
| 775 | */ |
Jens Axboe | d460eb3 | 2007-04-16 21:39:33 +0200 | [diff] [blame] | 776 | io_u->endpos = io_u->offset + io_u->buflen; |
Jens Axboe | cec6b55 | 2007-02-06 20:15:38 +0100 | [diff] [blame] | 777 | io_u->xfer_buf = io_u->buf; |
| 778 | io_u->xfer_buflen = io_u->buflen; |
Jens Axboe | 6ac7a33 | 2008-03-01 15:22:32 +0100 | [diff] [blame] | 779 | out: |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 780 | if (!td_io_prep(td, io_u)) { |
| 781 | fio_gettime(&io_u->start_time, NULL); |
| 782 | return io_u; |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 783 | } |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 784 | err_put: |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 785 | dprint(FD_IO, "get_io_u failed\n"); |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 786 | put_io_u(td, io_u); |
| 787 | return NULL; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 788 | } |
| 789 | |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 790 | void io_u_log_error(struct thread_data *td, struct io_u *io_u) |
| 791 | { |
| 792 | const char *msg[] = { "read", "write", "sync" }; |
| 793 | |
| 794 | log_err("fio: io_u error"); |
| 795 | |
| 796 | if (io_u->file) |
| 797 | log_err(" on file %s", io_u->file->file_name); |
| 798 | |
| 799 | log_err(": %s\n", strerror(io_u->error)); |
| 800 | |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 801 | log_err(" %s offset=%llu, buflen=%lu\n", msg[io_u->ddir], |
| 802 | io_u->offset, io_u->xfer_buflen); |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 803 | |
| 804 | if (!td->error) |
| 805 | td_verror(td, io_u->error, "io_u error"); |
| 806 | } |
| 807 | |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 808 | static void io_completed(struct thread_data *td, struct io_u *io_u, |
| 809 | struct io_completion_data *icd) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 810 | { |
Jens Axboe | d85f511 | 2007-06-18 09:41:23 +0200 | [diff] [blame] | 811 | unsigned long usec; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 812 | |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 813 | dprint_io_u(io_u, "io complete"); |
| 814 | |
Jens Axboe | 0c6e751 | 2007-02-22 11:19:39 +0100 | [diff] [blame] | 815 | assert(io_u->flags & IO_U_F_FLIGHT); |
| 816 | io_u->flags &= ~IO_U_F_FLIGHT; |
| 817 | |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 818 | if (io_u->ddir == DDIR_SYNC) { |
| 819 | td->last_was_sync = 1; |
| 820 | return; |
| 821 | } |
| 822 | |
| 823 | td->last_was_sync = 0; |
| 824 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 825 | if (!io_u->error) { |
| 826 | unsigned int bytes = io_u->buflen - io_u->resid; |
Jens Axboe | 1e97cce | 2006-12-05 11:44:16 +0100 | [diff] [blame] | 827 | const enum fio_ddir idx = io_u->ddir; |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 828 | int ret; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 829 | |
| 830 | td->io_blocks[idx]++; |
| 831 | td->io_bytes[idx] += bytes; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 832 | td->this_io_bytes[idx] += bytes; |
| 833 | |
Jens Axboe | d85f511 | 2007-06-18 09:41:23 +0200 | [diff] [blame] | 834 | usec = utime_since(&io_u->issue_time, &icd->time); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 835 | |
Jens Axboe | d85f511 | 2007-06-18 09:41:23 +0200 | [diff] [blame] | 836 | add_clat_sample(td, idx, usec); |
Jens Axboe | 02bcaa8 | 2006-11-24 10:42:00 +0100 | [diff] [blame] | 837 | add_bw_sample(td, idx, &icd->time); |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 838 | io_u_mark_latency(td, usec); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 839 | |
Jens Axboe | 660a1cb | 2007-04-17 15:37:47 +0200 | [diff] [blame] | 840 | if (td_write(td) && idx == DDIR_WRITE && |
Shawn Lewis | 8670579 | 2007-11-21 09:35:41 +0100 | [diff] [blame] | 841 | td->o.do_verify && |
Jens Axboe | 4112840 | 2007-03-27 08:32:48 +0200 | [diff] [blame] | 842 | td->o.verify != VERIFY_NONE) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 843 | log_io_piece(td, io_u); |
| 844 | |
| 845 | icd->bytes_done[idx] += bytes; |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 846 | |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 847 | if (io_u->end_io) { |
Jens Axboe | 36690c9 | 2007-03-26 10:23:34 +0200 | [diff] [blame] | 848 | ret = io_u->end_io(td, io_u); |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 849 | if (ret && !icd->error) |
| 850 | icd->error = ret; |
| 851 | } |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 852 | } else { |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 853 | icd->error = io_u->error; |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 854 | io_u_log_error(td, io_u); |
| 855 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 856 | } |
| 857 | |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 858 | static void init_icd(struct io_completion_data *icd, int nr) |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 859 | { |
| 860 | fio_gettime(&icd->time, NULL); |
| 861 | |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 862 | icd->nr = nr; |
| 863 | |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 864 | icd->error = 0; |
| 865 | icd->bytes_done[0] = icd->bytes_done[1] = 0; |
| 866 | } |
| 867 | |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 868 | static void ios_completed(struct thread_data *td, |
| 869 | struct io_completion_data *icd) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 870 | { |
| 871 | struct io_u *io_u; |
| 872 | int i; |
| 873 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 874 | for (i = 0; i < icd->nr; i++) { |
| 875 | io_u = td->io_ops->event(td, i); |
| 876 | |
| 877 | io_completed(td, io_u, icd); |
| 878 | put_io_u(td, io_u); |
| 879 | } |
| 880 | } |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 881 | |
Jens Axboe | e7e6cfb | 2007-02-20 10:58:34 +0100 | [diff] [blame] | 882 | /* |
| 883 | * Complete a single io_u for the sync engines. |
| 884 | */ |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 885 | 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] | 886 | { |
| 887 | struct io_completion_data icd; |
| 888 | |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 889 | init_icd(&icd, 1); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 890 | io_completed(td, io_u, &icd); |
| 891 | put_io_u(td, io_u); |
| 892 | |
| 893 | if (!icd.error) |
| 894 | return icd.bytes_done[0] + icd.bytes_done[1]; |
| 895 | |
Jens Axboe | 37e974a | 2007-03-02 15:16:45 +0100 | [diff] [blame] | 896 | td_verror(td, icd.error, "io_u_sync_complete"); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 897 | return -1; |
| 898 | } |
| 899 | |
Jens Axboe | e7e6cfb | 2007-02-20 10:58:34 +0100 | [diff] [blame] | 900 | /* |
| 901 | * Called to complete min_events number of io for the async engines. |
| 902 | */ |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 903 | long io_u_queued_complete(struct thread_data *td, int min_events) |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 904 | { |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 905 | struct io_completion_data icd; |
Jens Axboe | 00de55e | 2007-02-20 10:45:57 +0100 | [diff] [blame] | 906 | struct timespec *tvp = NULL; |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 907 | int ret; |
Davide Libenzi | 4d06a33 | 2007-03-22 07:43:50 +0100 | [diff] [blame] | 908 | struct timespec ts = { .tv_sec = 0, .tv_nsec = 0, }; |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 909 | |
Jens Axboe | b271fe6 | 2008-02-04 10:49:41 +0100 | [diff] [blame] | 910 | dprint(FD_IO, "io_u_queued_completed: min=%d\n", min_events); |
| 911 | |
Davide Libenzi | 4d06a33 | 2007-03-22 07:43:50 +0100 | [diff] [blame] | 912 | if (!min_events) |
Jens Axboe | 00de55e | 2007-02-20 10:45:57 +0100 | [diff] [blame] | 913 | tvp = &ts; |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 914 | |
Jens Axboe | 00de55e | 2007-02-20 10:45:57 +0100 | [diff] [blame] | 915 | ret = td_io_getevents(td, min_events, td->cur_depth, tvp); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 916 | if (ret < 0) { |
Jens Axboe | e1161c3 | 2007-02-22 19:36:48 +0100 | [diff] [blame] | 917 | td_verror(td, -ret, "td_io_getevents"); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 918 | return ret; |
| 919 | } else if (!ret) |
| 920 | return ret; |
| 921 | |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 922 | init_icd(&icd, ret); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 923 | ios_completed(td, &icd); |
| 924 | if (!icd.error) |
| 925 | return icd.bytes_done[0] + icd.bytes_done[1]; |
| 926 | |
Jens Axboe | 37e974a | 2007-03-02 15:16:45 +0100 | [diff] [blame] | 927 | td_verror(td, icd.error, "io_u_queued_complete"); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 928 | return -1; |
| 929 | } |
Jens Axboe | 7e77dd0 | 2007-02-20 10:57:34 +0100 | [diff] [blame] | 930 | |
| 931 | /* |
| 932 | * Call when io_u is really queued, to update the submission latency. |
| 933 | */ |
| 934 | void io_u_queued(struct thread_data *td, struct io_u *io_u) |
| 935 | { |
| 936 | unsigned long slat_time; |
| 937 | |
Jens Axboe | d85f511 | 2007-06-18 09:41:23 +0200 | [diff] [blame] | 938 | slat_time = utime_since(&io_u->start_time, &io_u->issue_time); |
Jens Axboe | 7e77dd0 | 2007-02-20 10:57:34 +0100 | [diff] [blame] | 939 | add_slat_sample(td, io_u->ddir, slat_time); |
| 940 | } |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 941 | |
Jens Axboe | 55bc972 | 2007-02-22 11:30:05 +0100 | [diff] [blame] | 942 | #ifdef FIO_USE_TIMEOUT |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 943 | void io_u_set_timeout(struct thread_data *td) |
| 944 | { |
| 945 | assert(td->cur_depth); |
| 946 | |
| 947 | td->timer.it_interval.tv_sec = 0; |
| 948 | td->timer.it_interval.tv_usec = 0; |
| 949 | td->timer.it_value.tv_sec = IO_U_TIMEOUT + IO_U_TIMEOUT_INC; |
| 950 | td->timer.it_value.tv_usec = 0; |
| 951 | setitimer(ITIMER_REAL, &td->timer, NULL); |
| 952 | fio_gettime(&td->timeout_end, NULL); |
| 953 | } |
Jens Axboe | 5945b9b | 2007-02-22 20:33:01 +0100 | [diff] [blame] | 954 | |
| 955 | static void io_u_dump(struct io_u *io_u) |
| 956 | { |
| 957 | unsigned long t_start = mtime_since_now(&io_u->start_time); |
| 958 | unsigned long t_issue = mtime_since_now(&io_u->issue_time); |
| 959 | |
| 960 | 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] | 961 | log_err(" buf=%p/%p, len=%lu/%lu, offset=%llu\n", io_u->buf, |
| 962 | io_u->xfer_buf, io_u->buflen, |
| 963 | io_u->xfer_buflen, |
| 964 | io_u->offset); |
Jens Axboe | 5945b9b | 2007-02-22 20:33:01 +0100 | [diff] [blame] | 965 | log_err(" ddir=%d, fname=%s\n", io_u->ddir, io_u->file->file_name); |
| 966 | } |
Jens Axboe | 55bc972 | 2007-02-22 11:30:05 +0100 | [diff] [blame] | 967 | #else |
| 968 | void io_u_set_timeout(struct thread_data fio_unused *td) |
| 969 | { |
| 970 | } |
| 971 | #endif |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 972 | |
Jens Axboe | 55bc972 | 2007-02-22 11:30:05 +0100 | [diff] [blame] | 973 | #ifdef FIO_USE_TIMEOUT |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 974 | static void io_u_timeout_handler(int fio_unused sig) |
| 975 | { |
| 976 | struct thread_data *td, *__td; |
| 977 | pid_t pid = getpid(); |
Jens Axboe | 5945b9b | 2007-02-22 20:33:01 +0100 | [diff] [blame] | 978 | struct list_head *entry; |
| 979 | struct io_u *io_u; |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 980 | int i; |
| 981 | |
| 982 | log_err("fio: io_u timeout\n"); |
| 983 | |
| 984 | /* |
| 985 | * TLS would be nice... |
| 986 | */ |
| 987 | td = NULL; |
| 988 | for_each_td(__td, i) { |
| 989 | if (__td->pid == pid) { |
| 990 | td = __td; |
| 991 | break; |
| 992 | } |
| 993 | } |
| 994 | |
| 995 | if (!td) { |
| 996 | log_err("fio: io_u timeout, can't find job\n"); |
| 997 | exit(1); |
| 998 | } |
| 999 | |
| 1000 | if (!td->cur_depth) { |
| 1001 | log_err("fio: timeout without pending work?\n"); |
| 1002 | return; |
| 1003 | } |
| 1004 | |
Jens Axboe | 15506d0 | 2007-03-15 15:04:43 +0100 | [diff] [blame] | 1005 | 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] | 1006 | |
| 1007 | list_for_each(entry, &td->io_u_busylist) { |
| 1008 | io_u = list_entry(entry, struct io_u, list); |
| 1009 | |
| 1010 | io_u_dump(io_u); |
| 1011 | } |
| 1012 | |
| 1013 | td_verror(td, ETIMEDOUT, "io_u timeout"); |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 1014 | exit(1); |
| 1015 | } |
Jens Axboe | 55bc972 | 2007-02-22 11:30:05 +0100 | [diff] [blame] | 1016 | #endif |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 1017 | |
| 1018 | void io_u_init_timeout(void) |
| 1019 | { |
Jens Axboe | 55bc972 | 2007-02-22 11:30:05 +0100 | [diff] [blame] | 1020 | #ifdef FIO_USE_TIMEOUT |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 1021 | signal(SIGALRM, io_u_timeout_handler); |
Jens Axboe | 55bc972 | 2007-02-22 11:30:05 +0100 | [diff] [blame] | 1022 | #endif |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 1023 | } |