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 | de60566 | 2008-05-31 00:21:12 +0200 | [diff] [blame] | 35 | return (f->file_map[idx] & (1 << bit)) == 0; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 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; |
Jens Axboe | 3e3357b | 2008-06-02 09:53:05 +0200 | [diff] [blame] | 46 | unsigned int blocks, 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 | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 49 | nr_blocks = (io_u->buflen + min_bs - 1) / min_bs; |
Jens Axboe | 3e3357b | 2008-06-02 09:53:05 +0200 | [diff] [blame] | 50 | blocks = 0; |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 51 | |
Jens Axboe | 3e3357b | 2008-06-02 09:53:05 +0200 | [diff] [blame] | 52 | while (nr_blocks) { |
| 53 | unsigned int this_blocks, mask; |
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 | 8b113b4 | 2008-06-02 10:15:48 +0200 | [diff] [blame] | 60 | if ((td->o.ddir_nr == 1) && !random_map_free(f, block)) { |
| 61 | if (!blocks) |
| 62 | blocks = 1; |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 63 | break; |
Jens Axboe | 8b113b4 | 2008-06-02 10:15:48 +0200 | [diff] [blame] | 64 | } |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 65 | |
Jens Axboe | aec2de2 | 2008-04-24 12:44:42 +0200 | [diff] [blame] | 66 | idx = RAND_MAP_IDX(f, block); |
| 67 | bit = RAND_MAP_BIT(f, block); |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 68 | |
Jens Axboe | 0032bf9 | 2007-02-13 17:39:56 +0100 | [diff] [blame] | 69 | fio_assert(td, idx < f->num_maps); |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 70 | |
Jens Axboe | 3e3357b | 2008-06-02 09:53:05 +0200 | [diff] [blame] | 71 | this_blocks = nr_blocks; |
| 72 | if (this_blocks + bit > BLOCKS_PER_MAP) |
| 73 | this_blocks = BLOCKS_PER_MAP - bit; |
| 74 | |
| 75 | if (this_blocks == BLOCKS_PER_MAP) |
| 76 | mask = -1U; |
| 77 | else |
| 78 | mask = ((1U << this_blocks) - 1) << bit; |
| 79 | |
| 80 | fio_assert(td, !(f->file_map[idx] & mask)); |
| 81 | f->file_map[idx] |= mask; |
| 82 | nr_blocks -= this_blocks; |
| 83 | blocks += this_blocks; |
Jens Axboe | c9dd34b | 2008-06-02 10:09:43 +0200 | [diff] [blame] | 84 | block += this_blocks; |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 85 | } |
| 86 | |
Jens Axboe | a00735e | 2006-11-03 08:58:08 +0100 | [diff] [blame] | 87 | if ((blocks * min_bs) < io_u->buflen) |
| 88 | io_u->buflen = blocks * min_bs; |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 89 | } |
| 90 | |
Jens Axboe | 3e3357b | 2008-06-02 09:53:05 +0200 | [diff] [blame] | 91 | static unsigned long long last_block(struct thread_data *td, struct fio_file *f, |
| 92 | enum fio_ddir ddir) |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 93 | { |
| 94 | unsigned long long max_blocks; |
Jens Axboe | d9dd70f | 2008-05-23 12:37:23 +0200 | [diff] [blame] | 95 | unsigned long long max_size; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 96 | |
Jens Axboe | d9dd70f | 2008-05-23 12:37:23 +0200 | [diff] [blame] | 97 | /* |
| 98 | * Hmm, should we make sure that ->io_size <= ->real_file_size? |
| 99 | */ |
| 100 | max_size = f->io_size; |
| 101 | if (max_size > f->real_file_size) |
| 102 | max_size = f->real_file_size; |
| 103 | |
| 104 | max_blocks = max_size / (unsigned long long) td->o.min_bs[ddir]; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 105 | if (!max_blocks) |
| 106 | return 0; |
| 107 | |
Jens Axboe | 67778e8 | 2008-05-15 09:20:08 +0200 | [diff] [blame] | 108 | return max_blocks; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 109 | } |
| 110 | |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 111 | /* |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 112 | * Return the next free block in the map. |
| 113 | */ |
| 114 | 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] | 115 | enum fio_ddir ddir, unsigned long long *b) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 116 | { |
Jens Axboe | 84422ac | 2008-02-19 20:10:26 +0100 | [diff] [blame] | 117 | unsigned long long min_bs = td->o.rw_min_bs; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 118 | int i; |
| 119 | |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 120 | i = f->last_free_lookup; |
| 121 | *b = (i * BLOCKS_PER_MAP); |
Jens Axboe | 84422ac | 2008-02-19 20:10:26 +0100 | [diff] [blame] | 122 | while ((*b) * min_bs < f->real_file_size) { |
Jens Axboe | de60566 | 2008-05-31 00:21:12 +0200 | [diff] [blame] | 123 | if (f->file_map[i] != (unsigned int) -1) { |
Jens Axboe | 697a606 | 2008-05-31 00:04:45 +0200 | [diff] [blame] | 124 | *b += ffz(f->file_map[i]); |
Jens Axboe | 4ba6613 | 2008-02-05 10:05:50 +0100 | [diff] [blame] | 125 | if (*b > last_block(td, f, ddir)) |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 126 | break; |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 127 | f->last_free_lookup = i; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 128 | return 0; |
| 129 | } |
| 130 | |
| 131 | *b += BLOCKS_PER_MAP; |
| 132 | i++; |
| 133 | } |
| 134 | |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 135 | dprint(FD_IO, "failed finding a free block\n"); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 136 | return 1; |
| 137 | } |
| 138 | |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 139 | 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] | 140 | enum fio_ddir ddir, unsigned long long *b) |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 141 | { |
Jens Axboe | 84422ac | 2008-02-19 20:10:26 +0100 | [diff] [blame] | 142 | unsigned long long r; |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 143 | int loops = 5; |
| 144 | |
| 145 | do { |
| 146 | r = os_random_long(&td->random_state); |
Jens Axboe | 84422ac | 2008-02-19 20:10:26 +0100 | [diff] [blame] | 147 | dprint(FD_RANDOM, "off rand %llu\n", r); |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 148 | *b = (last_block(td, f, ddir) - 1) |
Jens Axboe | dc873b6 | 2008-06-04 20:13:04 +0200 | [diff] [blame] | 149 | * (r / ((unsigned long long) OS_RAND_MAX + 1.0)); |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 150 | |
Jens Axboe | 43c63a7 | 2007-05-21 13:23:30 +0200 | [diff] [blame] | 151 | /* |
| 152 | * if we are not maintaining a random map, we are done. |
| 153 | */ |
Jens Axboe | 303032a | 2008-03-26 10:11:10 +0100 | [diff] [blame] | 154 | if (!file_randommap(td, f)) |
Jens Axboe | 43c63a7 | 2007-05-21 13:23:30 +0200 | [diff] [blame] | 155 | return 0; |
| 156 | |
| 157 | /* |
Jens Axboe | 84422ac | 2008-02-19 20:10:26 +0100 | [diff] [blame] | 158 | * calculate map offset and check if it's free |
Jens Axboe | 43c63a7 | 2007-05-21 13:23:30 +0200 | [diff] [blame] | 159 | */ |
Jens Axboe | aec2de2 | 2008-04-24 12:44:42 +0200 | [diff] [blame] | 160 | if (random_map_free(f, *b)) |
Jens Axboe | 43c63a7 | 2007-05-21 13:23:30 +0200 | [diff] [blame] | 161 | return 0; |
| 162 | |
Jens Axboe | 84422ac | 2008-02-19 20:10:26 +0100 | [diff] [blame] | 163 | dprint(FD_RANDOM, "get_next_rand_offset: offset %llu busy\n", |
| 164 | *b); |
Jens Axboe | 43c63a7 | 2007-05-21 13:23:30 +0200 | [diff] [blame] | 165 | } while (--loops); |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 166 | |
| 167 | /* |
Jens Axboe | 43c63a7 | 2007-05-21 13:23:30 +0200 | [diff] [blame] | 168 | * we get here, if we didn't suceed in looking up a block. generate |
| 169 | * a random start offset into the filemap, and find the first free |
| 170 | * block from there. |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 171 | */ |
Jens Axboe | 43c63a7 | 2007-05-21 13:23:30 +0200 | [diff] [blame] | 172 | loops = 10; |
| 173 | do { |
Jens Axboe | dc873b6 | 2008-06-04 20:13:04 +0200 | [diff] [blame] | 174 | f->last_free_lookup = (f->num_maps - 1) * |
| 175 | (r / (OS_RAND_MAX + 1.0)); |
Jens Axboe | 4ba6613 | 2008-02-05 10:05:50 +0100 | [diff] [blame] | 176 | if (!get_next_free_block(td, f, ddir, b)) |
Jens Axboe | 43c63a7 | 2007-05-21 13:23:30 +0200 | [diff] [blame] | 177 | return 0; |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 178 | |
Jens Axboe | 43c63a7 | 2007-05-21 13:23:30 +0200 | [diff] [blame] | 179 | r = os_random_long(&td->random_state); |
| 180 | } while (--loops); |
| 181 | |
| 182 | /* |
| 183 | * that didn't work either, try exhaustive search from the start |
| 184 | */ |
| 185 | f->last_free_lookup = 0; |
Jens Axboe | 4ba6613 | 2008-02-05 10:05:50 +0100 | [diff] [blame] | 186 | return get_next_free_block(td, f, ddir, b); |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 187 | } |
| 188 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 189 | /* |
| 190 | * For random io, generate a random new block and see if it's used. Repeat |
| 191 | * until we find a free one. For sequential io, just return the end of |
| 192 | * the last io issued. |
| 193 | */ |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 194 | 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] | 195 | { |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 196 | struct fio_file *f = io_u->file; |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 197 | unsigned long long b; |
Jens Axboe | 4ba6613 | 2008-02-05 10:05:50 +0100 | [diff] [blame] | 198 | enum fio_ddir ddir = io_u->ddir; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 199 | |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 200 | if (td_random(td) && (td->o.ddir_nr && !--td->ddir_nr)) { |
| 201 | td->ddir_nr = td->o.ddir_nr; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 202 | |
Jens Axboe | 4ba6613 | 2008-02-05 10:05:50 +0100 | [diff] [blame] | 203 | if (get_next_rand_offset(td, f, ddir, &b)) |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 204 | return 1; |
Jens Axboe | 43063a1 | 2007-03-27 20:21:24 +0200 | [diff] [blame] | 205 | } else { |
ljzhang,Yaxin Hu,Jianchao Tang | 0c3d768 | 2007-07-26 10:59:25 +0200 | [diff] [blame] | 206 | if (f->last_pos >= f->real_file_size) { |
Jens Axboe | 4ba6613 | 2008-02-05 10:05:50 +0100 | [diff] [blame] | 207 | if (!td_random(td) || |
| 208 | get_next_rand_offset(td, f, ddir, &b)) |
ljzhang,Yaxin Hu,Jianchao Tang | 0c3d768 | 2007-07-26 10:59:25 +0200 | [diff] [blame] | 209 | return 1; |
ljzhang,Yaxin Hu,Jianchao Tang | bcdedd0 | 2007-07-27 13:28:26 +0200 | [diff] [blame] | 210 | } else |
Jens Axboe | 4ba6613 | 2008-02-05 10:05:50 +0100 | [diff] [blame] | 211 | b = (f->last_pos - f->file_offset) / td->o.min_bs[ddir]; |
Jens Axboe | 43063a1 | 2007-03-27 20:21:24 +0200 | [diff] [blame] | 212 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 213 | |
Jens Axboe | 009bd84 | 2008-05-15 10:19:46 +0200 | [diff] [blame] | 214 | io_u->offset = b * td->o.min_bs[ddir]; |
| 215 | if (io_u->offset >= f->io_size) { |
| 216 | dprint(FD_IO, "get_next_offset: offset %llu >= io_size %llu\n", |
| 217 | io_u->offset, f->io_size); |
| 218 | return 1; |
| 219 | } |
| 220 | |
| 221 | io_u->offset += f->file_offset; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 222 | if (io_u->offset >= f->real_file_size) { |
| 223 | dprint(FD_IO, "get_next_offset: offset %llu >= size %llu\n", |
| 224 | io_u->offset, f->real_file_size); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 225 | return 1; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 226 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 227 | |
| 228 | return 0; |
| 229 | } |
| 230 | |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 231 | 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] | 232 | { |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 233 | const int ddir = io_u->ddir; |
Jens Axboe | fc4398f | 2008-05-23 13:28:59 +0200 | [diff] [blame] | 234 | unsigned int buflen = buflen; /* silence dumb gcc warning */ |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 235 | long r; |
| 236 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 237 | if (td->o.min_bs[ddir] == td->o.max_bs[ddir]) |
| 238 | buflen = td->o.min_bs[ddir]; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 239 | else { |
| 240 | r = os_random_long(&td->bsrange_state); |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 241 | if (!td->o.bssplit_nr) { |
| 242 | buflen = (unsigned int) |
| 243 | (1 + (double) (td->o.max_bs[ddir] - 1) |
Jens Axboe | dc873b6 | 2008-06-04 20:13:04 +0200 | [diff] [blame] | 244 | * r / (OS_RAND_MAX + 1.0)); |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 245 | } else { |
Jens Axboe | 564ca97 | 2007-12-14 12:21:19 +0100 | [diff] [blame] | 246 | long perc = 0; |
| 247 | unsigned int i; |
| 248 | |
| 249 | for (i = 0; i < td->o.bssplit_nr; i++) { |
| 250 | struct bssplit *bsp = &td->o.bssplit[i]; |
| 251 | |
| 252 | buflen = bsp->bs; |
| 253 | perc += bsp->perc; |
| 254 | if (r <= ((LONG_MAX / 100L) * perc)) |
| 255 | break; |
| 256 | } |
| 257 | } |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 258 | if (!td->o.bs_unaligned) { |
| 259 | buflen = (buflen + td->o.min_bs[ddir] - 1) |
| 260 | & ~(td->o.min_bs[ddir] - 1); |
| 261 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 262 | } |
| 263 | |
Jens Axboe | 4ba6613 | 2008-02-05 10:05:50 +0100 | [diff] [blame] | 264 | if (io_u->offset + buflen > io_u->file->real_file_size) { |
| 265 | dprint(FD_IO, "lower buflen %u -> %u (ddir=%d)\n", buflen, |
| 266 | td->o.min_bs[ddir], ddir); |
Jens Axboe | 6a5e688 | 2007-07-26 10:47:51 +0200 | [diff] [blame] | 267 | buflen = td->o.min_bs[ddir]; |
Jens Axboe | 4ba6613 | 2008-02-05 10:05:50 +0100 | [diff] [blame] | 268 | } |
Jens Axboe | 6a5e688 | 2007-07-26 10:47:51 +0200 | [diff] [blame] | 269 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 270 | return buflen; |
| 271 | } |
| 272 | |
Jens Axboe | afe24a5 | 2007-03-16 20:27:27 +0100 | [diff] [blame] | 273 | static void set_rwmix_bytes(struct thread_data *td) |
| 274 | { |
Jens Axboe | afe24a5 | 2007-03-16 20:27:27 +0100 | [diff] [blame] | 275 | unsigned int diff; |
| 276 | |
| 277 | /* |
| 278 | * we do time or byte based switch. this is needed because |
| 279 | * buffered writes may issue a lot quicker than they complete, |
| 280 | * whereas reads do not. |
| 281 | */ |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 282 | diff = td->o.rwmix[td->rwmix_ddir ^ 1]; |
Jens Axboe | 04c540d | 2008-05-28 10:35:26 +0200 | [diff] [blame] | 283 | td->rwmix_issues = (td->io_issues[td->rwmix_ddir] * diff) / 100; |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 284 | } |
| 285 | |
| 286 | static inline enum fio_ddir get_rand_ddir(struct thread_data *td) |
| 287 | { |
| 288 | unsigned int v; |
| 289 | long r; |
| 290 | |
| 291 | r = os_random_long(&td->rwmix_state); |
Jens Axboe | dc873b6 | 2008-06-04 20:13:04 +0200 | [diff] [blame] | 292 | v = 1 + (int) (100.0 * (r / (OS_RAND_MAX + 1.0))); |
Jens Axboe | 04c540d | 2008-05-28 10:35:26 +0200 | [diff] [blame] | 293 | if (v <= td->o.rwmix[DDIR_READ]) |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 294 | return DDIR_READ; |
| 295 | |
| 296 | return DDIR_WRITE; |
Jens Axboe | afe24a5 | 2007-03-16 20:27:27 +0100 | [diff] [blame] | 297 | } |
| 298 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 299 | /* |
| 300 | * Return the data direction for the next io_u. If the job is a |
| 301 | * mixed read/write workload, check the rwmix cycle and switch if |
| 302 | * necessary. |
| 303 | */ |
Jens Axboe | 1e97cce | 2006-12-05 11:44:16 +0100 | [diff] [blame] | 304 | static enum fio_ddir get_rw_ddir(struct thread_data *td) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 305 | { |
| 306 | if (td_rw(td)) { |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 307 | /* |
| 308 | * Check if it's time to seed a new data direction. |
| 309 | */ |
Jens Axboe | e492866 | 2008-04-07 09:19:46 +0200 | [diff] [blame] | 310 | if (td->io_issues[td->rwmix_ddir] >= td->rwmix_issues) { |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 311 | unsigned long long max_bytes; |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 312 | enum fio_ddir ddir; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 313 | |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 314 | /* |
| 315 | * Put a top limit on how many bytes we do for |
| 316 | * one data direction, to avoid overflowing the |
| 317 | * ranges too much |
| 318 | */ |
| 319 | ddir = get_rand_ddir(td); |
| 320 | max_bytes = td->this_io_bytes[ddir]; |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 321 | if (max_bytes >= |
| 322 | (td->o.size * td->o.rwmix[ddir] / 100)) { |
Jens Axboe | 6162f52 | 2008-06-04 10:35:25 +0200 | [diff] [blame] | 323 | if (!td->rw_end_set[ddir]) { |
Jens Axboe | 38d77ca | 2007-03-21 14:20:20 +0100 | [diff] [blame] | 324 | td->rw_end_set[ddir] = 1; |
Jens Axboe | 6162f52 | 2008-06-04 10:35:25 +0200 | [diff] [blame] | 325 | fio_gettime(&td->rw_end[ddir], NULL); |
| 326 | } |
Jens Axboe | e492866 | 2008-04-07 09:19:46 +0200 | [diff] [blame] | 327 | |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 328 | ddir ^= 1; |
Jens Axboe | 38d77ca | 2007-03-21 14:20:20 +0100 | [diff] [blame] | 329 | } |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 330 | |
| 331 | if (ddir != td->rwmix_ddir) |
| 332 | set_rwmix_bytes(td); |
| 333 | |
| 334 | td->rwmix_ddir = ddir; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 335 | } |
| 336 | return td->rwmix_ddir; |
| 337 | } else if (td_read(td)) |
| 338 | return DDIR_READ; |
| 339 | else |
| 340 | return DDIR_WRITE; |
| 341 | } |
| 342 | |
Jens Axboe | 60f2c65 | 2008-05-16 12:31:36 +0200 | [diff] [blame] | 343 | static void put_file_log(struct thread_data *td, struct fio_file *f) |
| 344 | { |
| 345 | int ret = put_file(td, f); |
| 346 | |
| 347 | if (ret) |
| 348 | td_verror(td, ret, "file close"); |
| 349 | } |
| 350 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 351 | void put_io_u(struct thread_data *td, struct io_u *io_u) |
| 352 | { |
Jens Axboe | 0c6e751 | 2007-02-22 11:19:39 +0100 | [diff] [blame] | 353 | assert((io_u->flags & IO_U_F_FREE) == 0); |
| 354 | io_u->flags |= IO_U_F_FREE; |
| 355 | |
Jens Axboe | 60f2c65 | 2008-05-16 12:31:36 +0200 | [diff] [blame] | 356 | if (io_u->file) |
| 357 | put_file_log(td, io_u->file); |
Jens Axboe | 2dbdab7 | 2007-04-26 10:21:15 +0200 | [diff] [blame] | 358 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 359 | io_u->file = NULL; |
Jens Axboe | 01743ee | 2008-06-02 12:19:19 +0200 | [diff] [blame] | 360 | flist_del(&io_u->list); |
| 361 | flist_add(&io_u->list, &td->io_u_freelist); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 362 | td->cur_depth--; |
| 363 | } |
| 364 | |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 365 | void requeue_io_u(struct thread_data *td, struct io_u **io_u) |
| 366 | { |
| 367 | struct io_u *__io_u = *io_u; |
| 368 | |
Jens Axboe | 465221b | 2008-05-30 22:07:49 +0200 | [diff] [blame] | 369 | dprint(FD_IO, "requeue %p\n", __io_u); |
| 370 | |
Jens Axboe | 4d2e0f4 | 2007-02-24 13:31:57 +0100 | [diff] [blame] | 371 | __io_u->flags |= IO_U_F_FREE; |
Jens Axboe | e4f54ad | 2008-02-04 10:56:07 +0100 | [diff] [blame] | 372 | if ((__io_u->flags & IO_U_F_FLIGHT) && (__io_u->ddir != DDIR_SYNC)) |
| 373 | td->io_issues[__io_u->ddir]--; |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 374 | |
Jens Axboe | 4d2e0f4 | 2007-02-24 13:31:57 +0100 | [diff] [blame] | 375 | __io_u->flags &= ~IO_U_F_FLIGHT; |
| 376 | |
Jens Axboe | 01743ee | 2008-06-02 12:19:19 +0200 | [diff] [blame] | 377 | flist_del(&__io_u->list); |
| 378 | flist_add_tail(&__io_u->list, &td->io_u_requeues); |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 379 | td->cur_depth--; |
| 380 | *io_u = NULL; |
| 381 | } |
| 382 | |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 383 | 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] | 384 | { |
Jens Axboe | b4c5e1a | 2007-10-25 18:44:45 +0200 | [diff] [blame] | 385 | if (td->io_ops->flags & FIO_NOIO) |
| 386 | goto out; |
| 387 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 388 | /* |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 389 | * see if it's time to sync |
| 390 | */ |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 391 | if (td->o.fsync_blocks && |
| 392 | !(td->io_issues[DDIR_WRITE] % td->o.fsync_blocks) && |
| 393 | td->io_issues[DDIR_WRITE] && should_fsync(td)) { |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 394 | io_u->ddir = DDIR_SYNC; |
Jens Axboe | c38e946 | 2007-03-27 08:48:48 +0200 | [diff] [blame] | 395 | goto out; |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 396 | } |
| 397 | |
Jens Axboe | a00735e | 2006-11-03 08:58:08 +0100 | [diff] [blame] | 398 | io_u->ddir = get_rw_ddir(td); |
| 399 | |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 400 | /* |
Jens Axboe | 48f5abd | 2007-07-20 13:25:04 +0200 | [diff] [blame] | 401 | * See if it's time to switch to a new zone |
| 402 | */ |
| 403 | if (td->zone_bytes >= td->o.zone_size) { |
| 404 | td->zone_bytes = 0; |
| 405 | io_u->file->last_pos += td->o.zone_skip; |
| 406 | td->io_skip_bytes += td->o.zone_skip; |
| 407 | } |
| 408 | |
| 409 | /* |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 410 | * No log, let the seq/rand engine retrieve the next buflen and |
| 411 | * position. |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 412 | */ |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 413 | if (get_next_offset(td, io_u)) { |
| 414 | dprint(FD_IO, "io_u %p, failed getting offset\n", io_u); |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 415 | return 1; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 416 | } |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 417 | |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 418 | io_u->buflen = get_next_buflen(td, io_u); |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 419 | if (!io_u->buflen) { |
| 420 | dprint(FD_IO, "io_u %p, failed getting buflen\n", io_u); |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 421 | return 1; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 422 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 423 | |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 424 | if (io_u->offset + io_u->buflen > io_u->file->real_file_size) { |
| 425 | dprint(FD_IO, "io_u %p, offset too large\n", io_u); |
Jens Axboe | 4ba6613 | 2008-02-05 10:05:50 +0100 | [diff] [blame] | 426 | dprint(FD_IO, " off=%llu/%lu > %llu\n", io_u->offset, |
| 427 | io_u->buflen, io_u->file->real_file_size); |
Jens Axboe | 6a5e688 | 2007-07-26 10:47:51 +0200 | [diff] [blame] | 428 | return 1; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 429 | } |
Jens Axboe | 6a5e688 | 2007-07-26 10:47:51 +0200 | [diff] [blame] | 430 | |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 431 | /* |
| 432 | * mark entry before potentially trimming io_u |
| 433 | */ |
Jens Axboe | 303032a | 2008-03-26 10:11:10 +0100 | [diff] [blame] | 434 | if (td_random(td) && file_randommap(td, io_u->file)) |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 435 | mark_random_map(td, io_u); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 436 | |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 437 | /* |
| 438 | * If using a write iolog, store this entry. |
| 439 | */ |
Jens Axboe | c38e946 | 2007-03-27 08:48:48 +0200 | [diff] [blame] | 440 | out: |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 441 | dprint_io_u(io_u, "fill_io_u"); |
Jens Axboe | d9d91e3 | 2008-01-31 13:25:42 +0100 | [diff] [blame] | 442 | td->zone_bytes += io_u->buflen; |
Jens Axboe | f29b25a | 2007-07-23 08:56:43 +0200 | [diff] [blame] | 443 | log_io_u(td, io_u); |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 444 | return 0; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 445 | } |
| 446 | |
Jens Axboe | 838bc70 | 2008-05-22 13:08:23 +0200 | [diff] [blame] | 447 | static void __io_u_mark_map(unsigned int *map, unsigned int nr) |
| 448 | { |
| 449 | int index = 0; |
| 450 | |
| 451 | switch (nr) { |
| 452 | default: |
| 453 | index = 6; |
| 454 | break; |
| 455 | case 33 ... 64: |
| 456 | index = 5; |
| 457 | break; |
| 458 | case 17 ... 32: |
| 459 | index = 4; |
| 460 | break; |
| 461 | case 9 ... 16: |
| 462 | index = 3; |
| 463 | break; |
| 464 | case 5 ... 8: |
| 465 | index = 2; |
| 466 | break; |
| 467 | case 1 ... 4: |
| 468 | index = 1; |
| 469 | case 0: |
| 470 | break; |
| 471 | } |
| 472 | |
| 473 | map[index]++; |
| 474 | } |
| 475 | |
| 476 | void io_u_mark_submit(struct thread_data *td, unsigned int nr) |
| 477 | { |
| 478 | __io_u_mark_map(td->ts.io_u_submit, nr); |
| 479 | td->ts.total_submit++; |
| 480 | } |
| 481 | |
| 482 | void io_u_mark_complete(struct thread_data *td, unsigned int nr) |
| 483 | { |
| 484 | __io_u_mark_map(td->ts.io_u_complete, nr); |
| 485 | td->ts.total_complete++; |
| 486 | } |
| 487 | |
Jens Axboe | d800575 | 2008-05-15 09:49:09 +0200 | [diff] [blame] | 488 | void io_u_mark_depth(struct thread_data *td, unsigned int nr) |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 489 | { |
| 490 | int index = 0; |
| 491 | |
| 492 | switch (td->cur_depth) { |
| 493 | default: |
Jens Axboe | a783e61 | 2007-06-19 09:50:28 +0200 | [diff] [blame] | 494 | index = 6; |
| 495 | break; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 496 | case 32 ... 63: |
Jens Axboe | a783e61 | 2007-06-19 09:50:28 +0200 | [diff] [blame] | 497 | index = 5; |
| 498 | break; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 499 | case 16 ... 31: |
Jens Axboe | a783e61 | 2007-06-19 09:50:28 +0200 | [diff] [blame] | 500 | index = 4; |
| 501 | break; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 502 | case 8 ... 15: |
Jens Axboe | a783e61 | 2007-06-19 09:50:28 +0200 | [diff] [blame] | 503 | index = 3; |
| 504 | break; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 505 | case 4 ... 7: |
Jens Axboe | a783e61 | 2007-06-19 09:50:28 +0200 | [diff] [blame] | 506 | index = 2; |
| 507 | break; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 508 | case 2 ... 3: |
Jens Axboe | a783e61 | 2007-06-19 09:50:28 +0200 | [diff] [blame] | 509 | index = 1; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 510 | case 1: |
| 511 | break; |
| 512 | } |
| 513 | |
Jens Axboe | 3bec7ae | 2008-05-14 21:08:37 +0200 | [diff] [blame] | 514 | td->ts.io_u_map[index] += nr; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 515 | } |
| 516 | |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 517 | static void io_u_mark_lat_usec(struct thread_data *td, unsigned long usec) |
| 518 | { |
| 519 | int index = 0; |
| 520 | |
| 521 | assert(usec < 1000); |
| 522 | |
| 523 | switch (usec) { |
| 524 | case 750 ... 999: |
| 525 | index = 9; |
| 526 | break; |
| 527 | case 500 ... 749: |
| 528 | index = 8; |
| 529 | break; |
| 530 | case 250 ... 499: |
| 531 | index = 7; |
| 532 | break; |
| 533 | case 100 ... 249: |
| 534 | index = 6; |
| 535 | break; |
| 536 | case 50 ... 99: |
| 537 | index = 5; |
| 538 | break; |
| 539 | case 20 ... 49: |
| 540 | index = 4; |
| 541 | break; |
| 542 | case 10 ... 19: |
| 543 | index = 3; |
| 544 | break; |
| 545 | case 4 ... 9: |
| 546 | index = 2; |
| 547 | break; |
| 548 | case 2 ... 3: |
| 549 | index = 1; |
| 550 | case 0 ... 1: |
| 551 | break; |
| 552 | } |
| 553 | |
| 554 | assert(index < FIO_IO_U_LAT_U_NR); |
| 555 | td->ts.io_u_lat_u[index]++; |
| 556 | } |
| 557 | |
| 558 | 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] | 559 | { |
| 560 | int index = 0; |
| 561 | |
| 562 | switch (msec) { |
| 563 | default: |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 564 | index = 11; |
| 565 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 566 | case 1000 ... 1999: |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 567 | index = 10; |
| 568 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 569 | case 750 ... 999: |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 570 | index = 9; |
| 571 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 572 | case 500 ... 749: |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 573 | index = 8; |
| 574 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 575 | case 250 ... 499: |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 576 | index = 7; |
| 577 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 578 | case 100 ... 249: |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 579 | index = 6; |
| 580 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 581 | case 50 ... 99: |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 582 | index = 5; |
| 583 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 584 | case 20 ... 49: |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 585 | index = 4; |
| 586 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 587 | case 10 ... 19: |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 588 | index = 3; |
| 589 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 590 | case 4 ... 9: |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 591 | index = 2; |
| 592 | break; |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 593 | case 2 ... 3: |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 594 | index = 1; |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 595 | case 0 ... 1: |
| 596 | break; |
| 597 | } |
| 598 | |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 599 | assert(index < FIO_IO_U_LAT_M_NR); |
| 600 | td->ts.io_u_lat_m[index]++; |
| 601 | } |
| 602 | |
| 603 | static void io_u_mark_latency(struct thread_data *td, unsigned long usec) |
| 604 | { |
| 605 | if (usec < 1000) |
| 606 | io_u_mark_lat_usec(td, usec); |
| 607 | else |
| 608 | io_u_mark_lat_msec(td, usec / 1000); |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 609 | } |
| 610 | |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 611 | /* |
| 612 | * Get next file to service by choosing one at random |
| 613 | */ |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 614 | static struct fio_file *get_next_file_rand(struct thread_data *td, int goodf, |
| 615 | int badf) |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 616 | { |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 617 | struct fio_file *f; |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 618 | int fno; |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 619 | |
| 620 | do { |
Jens Axboe | 7c83c08 | 2007-03-01 10:04:15 +0100 | [diff] [blame] | 621 | long r = os_random_long(&td->next_file_state); |
| 622 | |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 623 | fno = (unsigned int) ((double) td->o.nr_files |
Jens Axboe | dc873b6 | 2008-06-04 20:13:04 +0200 | [diff] [blame] | 624 | * (r / (OS_RAND_MAX + 1.0))); |
Jens Axboe | 126d65c | 2008-03-01 18:04:31 +0100 | [diff] [blame] | 625 | f = td->files[fno]; |
Jens Axboe | 059e63c | 2007-03-27 20:34:47 +0200 | [diff] [blame] | 626 | if (f->flags & FIO_FILE_DONE) |
| 627 | continue; |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 628 | |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 629 | if ((!goodf || (f->flags & goodf)) && !(f->flags & badf)) { |
| 630 | dprint(FD_FILE, "get_next_file_rand: %p\n", f); |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 631 | return f; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 632 | } |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 633 | } while (1); |
| 634 | } |
| 635 | |
| 636 | /* |
| 637 | * Get next file to service by doing round robin between all available ones |
| 638 | */ |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 639 | static struct fio_file *get_next_file_rr(struct thread_data *td, int goodf, |
| 640 | int badf) |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 641 | { |
| 642 | unsigned int old_next_file = td->next_file; |
| 643 | struct fio_file *f; |
| 644 | |
| 645 | do { |
Jens Axboe | 126d65c | 2008-03-01 18:04:31 +0100 | [diff] [blame] | 646 | f = td->files[td->next_file]; |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 647 | |
| 648 | td->next_file++; |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 649 | if (td->next_file >= td->o.nr_files) |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 650 | td->next_file = 0; |
| 651 | |
Jens Axboe | d5ed68e | 2007-03-28 09:33:43 +0200 | [diff] [blame] | 652 | if (f->flags & FIO_FILE_DONE) { |
| 653 | f = NULL; |
Jens Axboe | 059e63c | 2007-03-27 20:34:47 +0200 | [diff] [blame] | 654 | continue; |
Jens Axboe | d5ed68e | 2007-03-28 09:33:43 +0200 | [diff] [blame] | 655 | } |
Jens Axboe | 059e63c | 2007-03-27 20:34:47 +0200 | [diff] [blame] | 656 | |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 657 | if ((!goodf || (f->flags & goodf)) && !(f->flags & badf)) |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 658 | break; |
| 659 | |
| 660 | f = NULL; |
| 661 | } while (td->next_file != old_next_file); |
| 662 | |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 663 | dprint(FD_FILE, "get_next_file_rr: %p\n", f); |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 664 | return f; |
| 665 | } |
| 666 | |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 667 | static struct fio_file *get_next_file(struct thread_data *td) |
| 668 | { |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 669 | struct fio_file *f; |
| 670 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 671 | assert(td->o.nr_files <= td->files_index); |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 672 | |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 673 | 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] | 674 | dprint(FD_FILE, "get_next_file: nr_open=%d, nr_done=%d," |
| 675 | " nr_files=%d\n", td->nr_open_files, |
| 676 | td->nr_done_files, |
| 677 | td->o.nr_files); |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 678 | return NULL; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 679 | } |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 680 | |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 681 | f = td->file_service_file; |
Jens Axboe | f11bd94 | 2007-03-13 10:16:34 +0100 | [diff] [blame] | 682 | if (f && (f->flags & FIO_FILE_OPEN) && td->file_service_left--) |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 683 | goto out; |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 684 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 685 | if (td->o.file_service_type == FIO_FSERVICE_RR) |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 686 | f = get_next_file_rr(td, FIO_FILE_OPEN, FIO_FILE_CLOSING); |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 687 | else |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 688 | f = get_next_file_rand(td, FIO_FILE_OPEN, FIO_FILE_CLOSING); |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 689 | |
| 690 | td->file_service_file = f; |
| 691 | td->file_service_left = td->file_service_nr - 1; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 692 | out: |
| 693 | dprint(FD_FILE, "get_next_file: %p\n", f); |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 694 | return f; |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 695 | } |
| 696 | |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 697 | static struct fio_file *find_next_new_file(struct thread_data *td) |
| 698 | { |
| 699 | struct fio_file *f; |
| 700 | |
Jens Axboe | 1020a13 | 2007-03-29 11:15:06 +0200 | [diff] [blame] | 701 | if (!td->nr_open_files || td->nr_done_files >= td->o.nr_files) |
| 702 | return NULL; |
| 703 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 704 | if (td->o.file_service_type == FIO_FSERVICE_RR) |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 705 | f = get_next_file_rr(td, 0, FIO_FILE_OPEN); |
| 706 | else |
| 707 | f = get_next_file_rand(td, 0, FIO_FILE_OPEN); |
| 708 | |
| 709 | return f; |
| 710 | } |
| 711 | |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 712 | static int set_io_u_file(struct thread_data *td, struct io_u *io_u) |
| 713 | { |
| 714 | struct fio_file *f; |
| 715 | |
| 716 | do { |
| 717 | f = get_next_file(td); |
| 718 | if (!f) |
| 719 | return 1; |
| 720 | |
| 721 | set_file: |
| 722 | io_u->file = f; |
| 723 | get_file(f); |
| 724 | |
| 725 | if (!fill_io_u(td, io_u)) |
| 726 | break; |
| 727 | |
| 728 | /* |
Jens Axboe | 009bd84 | 2008-05-15 10:19:46 +0200 | [diff] [blame] | 729 | * optimization to prevent close/open of the same file. This |
| 730 | * way we preserve queueing etc. |
| 731 | */ |
| 732 | if (td->o.nr_files == 1 && td->o.time_based) { |
Jens Axboe | 60f2c65 | 2008-05-16 12:31:36 +0200 | [diff] [blame] | 733 | put_file_log(td, f); |
Jens Axboe | 009bd84 | 2008-05-15 10:19:46 +0200 | [diff] [blame] | 734 | fio_file_reset(f); |
| 735 | goto set_file; |
| 736 | } |
| 737 | |
| 738 | /* |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 739 | * td_io_close() does a put_file() as well, so no need to |
| 740 | * do that here. |
| 741 | */ |
| 742 | io_u->file = NULL; |
| 743 | td_io_close_file(td, f); |
| 744 | f->flags |= FIO_FILE_DONE; |
| 745 | td->nr_done_files++; |
| 746 | |
| 747 | /* |
| 748 | * probably not the right place to do this, but see |
| 749 | * if we need to open a new file |
| 750 | */ |
| 751 | if (td->nr_open_files < td->o.open_files && |
| 752 | td->o.open_files != td->o.nr_files) { |
| 753 | f = find_next_new_file(td); |
| 754 | |
| 755 | if (!f || td_io_open_file(td, f)) |
| 756 | return 1; |
| 757 | |
| 758 | goto set_file; |
| 759 | } |
| 760 | } while (1); |
| 761 | |
| 762 | return 0; |
| 763 | } |
| 764 | |
| 765 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 766 | struct io_u *__get_io_u(struct thread_data *td) |
| 767 | { |
| 768 | struct io_u *io_u = NULL; |
| 769 | |
Jens Axboe | 01743ee | 2008-06-02 12:19:19 +0200 | [diff] [blame] | 770 | if (!flist_empty(&td->io_u_requeues)) |
| 771 | io_u = flist_entry(td->io_u_requeues.next, struct io_u, list); |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 772 | else if (!queue_full(td)) { |
Jens Axboe | 01743ee | 2008-06-02 12:19:19 +0200 | [diff] [blame] | 773 | io_u = flist_entry(td->io_u_freelist.next, struct io_u, list); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 774 | |
Jens Axboe | 6040dab | 2006-10-24 19:38:15 +0200 | [diff] [blame] | 775 | io_u->buflen = 0; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 776 | io_u->resid = 0; |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 777 | io_u->file = NULL; |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 778 | io_u->end_io = NULL; |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 779 | } |
| 780 | |
| 781 | if (io_u) { |
Jens Axboe | 0c6e751 | 2007-02-22 11:19:39 +0100 | [diff] [blame] | 782 | assert(io_u->flags & IO_U_F_FREE); |
| 783 | io_u->flags &= ~IO_U_F_FREE; |
| 784 | |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 785 | io_u->error = 0; |
Jens Axboe | 01743ee | 2008-06-02 12:19:19 +0200 | [diff] [blame] | 786 | flist_del(&io_u->list); |
| 787 | flist_add(&io_u->list, &td->io_u_busylist); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 788 | td->cur_depth++; |
| 789 | } |
| 790 | |
| 791 | return io_u; |
| 792 | } |
| 793 | |
| 794 | /* |
| 795 | * Return an io_u to be processed. Gets a buflen and offset, sets direction, |
| 796 | * etc. The returned io_u is fully ready to be prepped and submitted. |
| 797 | */ |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 798 | struct io_u *get_io_u(struct thread_data *td) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 799 | { |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 800 | struct fio_file *f; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 801 | struct io_u *io_u; |
| 802 | |
| 803 | io_u = __get_io_u(td); |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 804 | if (!io_u) { |
| 805 | dprint(FD_IO, "__get_io_u failed\n"); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 806 | return NULL; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 807 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 808 | |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 809 | /* |
| 810 | * from a requeue, io_u already setup |
| 811 | */ |
| 812 | if (io_u->file) |
Jens Axboe | 77f392b | 2007-02-19 20:13:09 +0100 | [diff] [blame] | 813 | goto out; |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 814 | |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 815 | /* |
| 816 | * If using an iolog, grab next piece if any available. |
| 817 | */ |
| 818 | if (td->o.read_iolog_file) { |
| 819 | if (read_iolog_get(td, io_u)) |
| 820 | goto err_put; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 821 | } else if (set_io_u_file(td, io_u)) { |
| 822 | dprint(FD_IO, "io_u %p, setting file failed\n", io_u); |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 823 | goto err_put; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 824 | } |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 825 | |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 826 | f = io_u->file; |
| 827 | assert(f->flags & FIO_FILE_OPEN); |
Jens Axboe | 97af62c | 2007-05-22 11:12:13 +0200 | [diff] [blame] | 828 | |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 829 | if (io_u->ddir != DDIR_SYNC) { |
Jens Axboe | d0656a9 | 2008-02-01 18:33:23 +0100 | [diff] [blame] | 830 | if (!io_u->buflen && !(td->io_ops->flags & FIO_NOIO)) { |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 831 | 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] | 832 | goto err_put; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 833 | } |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 834 | |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 835 | f->last_pos = io_u->offset + io_u->buflen; |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 836 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 837 | if (td->o.verify != VERIFY_NONE) |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 838 | populate_verify_io_u(td, io_u); |
Jens Axboe | e4dad9c | 2008-05-28 10:53:44 +0200 | [diff] [blame] | 839 | else if (td->o.refill_buffers && io_u->ddir == DDIR_WRITE) |
| 840 | io_u_fill_buffer(td, io_u, io_u->xfer_buflen); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 841 | } |
| 842 | |
Jens Axboe | 165faf1 | 2007-02-07 11:30:37 +0100 | [diff] [blame] | 843 | /* |
| 844 | * Set io data pointers. |
| 845 | */ |
Jens Axboe | d460eb3 | 2007-04-16 21:39:33 +0200 | [diff] [blame] | 846 | io_u->endpos = io_u->offset + io_u->buflen; |
Jens Axboe | cec6b55 | 2007-02-06 20:15:38 +0100 | [diff] [blame] | 847 | io_u->xfer_buf = io_u->buf; |
| 848 | io_u->xfer_buflen = io_u->buflen; |
Jens Axboe | 5973caf | 2008-05-21 19:52:35 +0200 | [diff] [blame] | 849 | |
Jens Axboe | 6ac7a33 | 2008-03-01 15:22:32 +0100 | [diff] [blame] | 850 | out: |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 851 | if (!td_io_prep(td, io_u)) { |
| 852 | fio_gettime(&io_u->start_time, NULL); |
| 853 | return io_u; |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 854 | } |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 855 | err_put: |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 856 | dprint(FD_IO, "get_io_u failed\n"); |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 857 | put_io_u(td, io_u); |
| 858 | return NULL; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 859 | } |
| 860 | |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 861 | void io_u_log_error(struct thread_data *td, struct io_u *io_u) |
| 862 | { |
| 863 | const char *msg[] = { "read", "write", "sync" }; |
| 864 | |
| 865 | log_err("fio: io_u error"); |
| 866 | |
| 867 | if (io_u->file) |
| 868 | log_err(" on file %s", io_u->file->file_name); |
| 869 | |
| 870 | log_err(": %s\n", strerror(io_u->error)); |
| 871 | |
Jens Axboe | 5ec10ea | 2008-03-06 15:42:00 +0100 | [diff] [blame] | 872 | log_err(" %s offset=%llu, buflen=%lu\n", msg[io_u->ddir], |
| 873 | io_u->offset, io_u->xfer_buflen); |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 874 | |
| 875 | if (!td->error) |
| 876 | td_verror(td, io_u->error, "io_u error"); |
| 877 | } |
| 878 | |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 879 | static void io_completed(struct thread_data *td, struct io_u *io_u, |
| 880 | struct io_completion_data *icd) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 881 | { |
Jens Axboe | d85f511 | 2007-06-18 09:41:23 +0200 | [diff] [blame] | 882 | unsigned long usec; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 883 | |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame] | 884 | dprint_io_u(io_u, "io complete"); |
| 885 | |
Jens Axboe | 0c6e751 | 2007-02-22 11:19:39 +0100 | [diff] [blame] | 886 | assert(io_u->flags & IO_U_F_FLIGHT); |
| 887 | io_u->flags &= ~IO_U_F_FLIGHT; |
| 888 | |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 889 | if (io_u->ddir == DDIR_SYNC) { |
| 890 | td->last_was_sync = 1; |
| 891 | return; |
| 892 | } |
| 893 | |
| 894 | td->last_was_sync = 0; |
| 895 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 896 | if (!io_u->error) { |
| 897 | unsigned int bytes = io_u->buflen - io_u->resid; |
Jens Axboe | 1e97cce | 2006-12-05 11:44:16 +0100 | [diff] [blame] | 898 | const enum fio_ddir idx = io_u->ddir; |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 899 | int ret; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 900 | |
| 901 | td->io_blocks[idx]++; |
| 902 | td->io_bytes[idx] += bytes; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 903 | td->this_io_bytes[idx] += bytes; |
| 904 | |
Jens Axboe | d85f511 | 2007-06-18 09:41:23 +0200 | [diff] [blame] | 905 | usec = utime_since(&io_u->issue_time, &icd->time); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 906 | |
Jens Axboe | d85f511 | 2007-06-18 09:41:23 +0200 | [diff] [blame] | 907 | add_clat_sample(td, idx, usec); |
Jens Axboe | 02bcaa8 | 2006-11-24 10:42:00 +0100 | [diff] [blame] | 908 | add_bw_sample(td, idx, &icd->time); |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 909 | io_u_mark_latency(td, usec); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 910 | |
Jens Axboe | 660a1cb | 2007-04-17 15:37:47 +0200 | [diff] [blame] | 911 | if (td_write(td) && idx == DDIR_WRITE && |
Shawn Lewis | 8670579 | 2007-11-21 09:35:41 +0100 | [diff] [blame] | 912 | td->o.do_verify && |
Jens Axboe | 4112840 | 2007-03-27 08:32:48 +0200 | [diff] [blame] | 913 | td->o.verify != VERIFY_NONE) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 914 | log_io_piece(td, io_u); |
| 915 | |
| 916 | icd->bytes_done[idx] += bytes; |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 917 | |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 918 | if (io_u->end_io) { |
Jens Axboe | 36690c9 | 2007-03-26 10:23:34 +0200 | [diff] [blame] | 919 | ret = io_u->end_io(td, io_u); |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 920 | if (ret && !icd->error) |
| 921 | icd->error = ret; |
| 922 | } |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 923 | } else { |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 924 | icd->error = io_u->error; |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 925 | io_u_log_error(td, io_u); |
| 926 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 927 | } |
| 928 | |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 929 | static void init_icd(struct io_completion_data *icd, int nr) |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 930 | { |
| 931 | fio_gettime(&icd->time, NULL); |
| 932 | |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 933 | icd->nr = nr; |
| 934 | |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 935 | icd->error = 0; |
| 936 | icd->bytes_done[0] = icd->bytes_done[1] = 0; |
| 937 | } |
| 938 | |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 939 | static void ios_completed(struct thread_data *td, |
| 940 | struct io_completion_data *icd) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 941 | { |
| 942 | struct io_u *io_u; |
| 943 | int i; |
| 944 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 945 | for (i = 0; i < icd->nr; i++) { |
| 946 | io_u = td->io_ops->event(td, i); |
| 947 | |
| 948 | io_completed(td, io_u, icd); |
| 949 | put_io_u(td, io_u); |
| 950 | } |
| 951 | } |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 952 | |
Jens Axboe | e7e6cfb | 2007-02-20 10:58:34 +0100 | [diff] [blame] | 953 | /* |
| 954 | * Complete a single io_u for the sync engines. |
| 955 | */ |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 956 | 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] | 957 | { |
| 958 | struct io_completion_data icd; |
| 959 | |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 960 | init_icd(&icd, 1); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 961 | io_completed(td, io_u, &icd); |
| 962 | put_io_u(td, io_u); |
| 963 | |
| 964 | if (!icd.error) |
| 965 | return icd.bytes_done[0] + icd.bytes_done[1]; |
| 966 | |
Jens Axboe | 37e974a | 2007-03-02 15:16:45 +0100 | [diff] [blame] | 967 | td_verror(td, icd.error, "io_u_sync_complete"); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 968 | return -1; |
| 969 | } |
| 970 | |
Jens Axboe | e7e6cfb | 2007-02-20 10:58:34 +0100 | [diff] [blame] | 971 | /* |
| 972 | * Called to complete min_events number of io for the async engines. |
| 973 | */ |
Jens Axboe | 4950421 | 2008-06-05 09:03:30 +0200 | [diff] [blame^] | 974 | long io_u_queued_complete(struct thread_data *td, int min_evts) |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 975 | { |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 976 | struct io_completion_data icd; |
Jens Axboe | 00de55e | 2007-02-20 10:45:57 +0100 | [diff] [blame] | 977 | struct timespec *tvp = NULL; |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 978 | int ret; |
Davide Libenzi | 4d06a33 | 2007-03-22 07:43:50 +0100 | [diff] [blame] | 979 | struct timespec ts = { .tv_sec = 0, .tv_nsec = 0, }; |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 980 | |
Jens Axboe | 4950421 | 2008-06-05 09:03:30 +0200 | [diff] [blame^] | 981 | dprint(FD_IO, "io_u_queued_completed: min=%d\n", min_evts); |
Jens Axboe | b271fe6 | 2008-02-04 10:49:41 +0100 | [diff] [blame] | 982 | |
Jens Axboe | 4950421 | 2008-06-05 09:03:30 +0200 | [diff] [blame^] | 983 | if (!min_evts) |
Jens Axboe | 00de55e | 2007-02-20 10:45:57 +0100 | [diff] [blame] | 984 | tvp = &ts; |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 985 | |
Jens Axboe | 4950421 | 2008-06-05 09:03:30 +0200 | [diff] [blame^] | 986 | ret = td_io_getevents(td, min_evts, td->o.iodepth_batch_complete, tvp); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 987 | if (ret < 0) { |
Jens Axboe | e1161c3 | 2007-02-22 19:36:48 +0100 | [diff] [blame] | 988 | td_verror(td, -ret, "td_io_getevents"); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 989 | return ret; |
| 990 | } else if (!ret) |
| 991 | return ret; |
| 992 | |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 993 | init_icd(&icd, ret); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 994 | ios_completed(td, &icd); |
| 995 | if (!icd.error) |
| 996 | return icd.bytes_done[0] + icd.bytes_done[1]; |
| 997 | |
Jens Axboe | 37e974a | 2007-03-02 15:16:45 +0100 | [diff] [blame] | 998 | td_verror(td, icd.error, "io_u_queued_complete"); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 999 | return -1; |
| 1000 | } |
Jens Axboe | 7e77dd0 | 2007-02-20 10:57:34 +0100 | [diff] [blame] | 1001 | |
| 1002 | /* |
| 1003 | * Call when io_u is really queued, to update the submission latency. |
| 1004 | */ |
| 1005 | void io_u_queued(struct thread_data *td, struct io_u *io_u) |
| 1006 | { |
| 1007 | unsigned long slat_time; |
| 1008 | |
Jens Axboe | d85f511 | 2007-06-18 09:41:23 +0200 | [diff] [blame] | 1009 | slat_time = utime_since(&io_u->start_time, &io_u->issue_time); |
Jens Axboe | 7e77dd0 | 2007-02-20 10:57:34 +0100 | [diff] [blame] | 1010 | add_slat_sample(td, io_u->ddir, slat_time); |
| 1011 | } |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 1012 | |
Jens Axboe | 5973caf | 2008-05-21 19:52:35 +0200 | [diff] [blame] | 1013 | /* |
| 1014 | * "randomly" fill the buffer contents |
| 1015 | */ |
| 1016 | void io_u_fill_buffer(struct thread_data *td, struct io_u *io_u, |
| 1017 | unsigned int max_bs) |
| 1018 | { |
| 1019 | long *ptr = io_u->buf; |
| 1020 | |
| 1021 | if (!td->o.zero_buffers) { |
| 1022 | while ((void *) ptr - io_u->buf < max_bs) { |
| 1023 | *ptr = rand() * GOLDEN_RATIO_PRIME; |
| 1024 | ptr++; |
| 1025 | } |
| 1026 | } else |
| 1027 | memset(ptr, 0, max_bs); |
| 1028 | } |
| 1029 | |
Jens Axboe | 55bc972 | 2007-02-22 11:30:05 +0100 | [diff] [blame] | 1030 | #ifdef FIO_USE_TIMEOUT |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 1031 | void io_u_set_timeout(struct thread_data *td) |
| 1032 | { |
| 1033 | assert(td->cur_depth); |
| 1034 | |
| 1035 | td->timer.it_interval.tv_sec = 0; |
| 1036 | td->timer.it_interval.tv_usec = 0; |
| 1037 | td->timer.it_value.tv_sec = IO_U_TIMEOUT + IO_U_TIMEOUT_INC; |
| 1038 | td->timer.it_value.tv_usec = 0; |
| 1039 | setitimer(ITIMER_REAL, &td->timer, NULL); |
| 1040 | fio_gettime(&td->timeout_end, NULL); |
| 1041 | } |
Jens Axboe | 5945b9b | 2007-02-22 20:33:01 +0100 | [diff] [blame] | 1042 | |
| 1043 | static void io_u_dump(struct io_u *io_u) |
| 1044 | { |
| 1045 | unsigned long t_start = mtime_since_now(&io_u->start_time); |
| 1046 | unsigned long t_issue = mtime_since_now(&io_u->issue_time); |
| 1047 | |
| 1048 | 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] | 1049 | log_err(" buf=%p/%p, len=%lu/%lu, offset=%llu\n", io_u->buf, |
| 1050 | io_u->xfer_buf, io_u->buflen, |
| 1051 | io_u->xfer_buflen, |
| 1052 | io_u->offset); |
Jens Axboe | 5945b9b | 2007-02-22 20:33:01 +0100 | [diff] [blame] | 1053 | log_err(" ddir=%d, fname=%s\n", io_u->ddir, io_u->file->file_name); |
| 1054 | } |
Jens Axboe | 55bc972 | 2007-02-22 11:30:05 +0100 | [diff] [blame] | 1055 | #else |
| 1056 | void io_u_set_timeout(struct thread_data fio_unused *td) |
| 1057 | { |
| 1058 | } |
| 1059 | #endif |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 1060 | |
Jens Axboe | 55bc972 | 2007-02-22 11:30:05 +0100 | [diff] [blame] | 1061 | #ifdef FIO_USE_TIMEOUT |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 1062 | static void io_u_timeout_handler(int fio_unused sig) |
| 1063 | { |
| 1064 | struct thread_data *td, *__td; |
| 1065 | pid_t pid = getpid(); |
Jens Axboe | 01743ee | 2008-06-02 12:19:19 +0200 | [diff] [blame] | 1066 | struct flist_head *entry; |
Jens Axboe | 5945b9b | 2007-02-22 20:33:01 +0100 | [diff] [blame] | 1067 | struct io_u *io_u; |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 1068 | int i; |
| 1069 | |
| 1070 | log_err("fio: io_u timeout\n"); |
| 1071 | |
| 1072 | /* |
| 1073 | * TLS would be nice... |
| 1074 | */ |
| 1075 | td = NULL; |
| 1076 | for_each_td(__td, i) { |
| 1077 | if (__td->pid == pid) { |
| 1078 | td = __td; |
| 1079 | break; |
| 1080 | } |
| 1081 | } |
| 1082 | |
| 1083 | if (!td) { |
| 1084 | log_err("fio: io_u timeout, can't find job\n"); |
| 1085 | exit(1); |
| 1086 | } |
| 1087 | |
| 1088 | if (!td->cur_depth) { |
| 1089 | log_err("fio: timeout without pending work?\n"); |
| 1090 | return; |
| 1091 | } |
| 1092 | |
Jens Axboe | 15506d0 | 2007-03-15 15:04:43 +0100 | [diff] [blame] | 1093 | 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] | 1094 | |
Jens Axboe | 01743ee | 2008-06-02 12:19:19 +0200 | [diff] [blame] | 1095 | flist_for_each(entry, &td->io_u_busylist) { |
| 1096 | io_u = flist_entry(entry, struct io_u, list); |
Jens Axboe | 5945b9b | 2007-02-22 20:33:01 +0100 | [diff] [blame] | 1097 | |
| 1098 | io_u_dump(io_u); |
| 1099 | } |
| 1100 | |
| 1101 | td_verror(td, ETIMEDOUT, "io_u timeout"); |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 1102 | exit(1); |
| 1103 | } |
Jens Axboe | 55bc972 | 2007-02-22 11:30:05 +0100 | [diff] [blame] | 1104 | #endif |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 1105 | |
| 1106 | void io_u_init_timeout(void) |
| 1107 | { |
Jens Axboe | 55bc972 | 2007-02-22 11:30:05 +0100 | [diff] [blame] | 1108 | #ifdef FIO_USE_TIMEOUT |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 1109 | signal(SIGALRM, io_u_timeout_handler); |
Jens Axboe | 55bc972 | 2007-02-22 11:30:05 +0100 | [diff] [blame] | 1110 | #endif |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 1111 | } |