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 | */ |
| 27 | static int random_map_free(struct thread_data *td, struct fio_file *f, |
| 28 | unsigned long long block) |
| 29 | { |
| 30 | unsigned int idx = RAND_MAP_IDX(td, f, block); |
| 31 | unsigned int bit = RAND_MAP_BIT(td, f, block); |
| 32 | |
| 33 | return (f->file_map[idx] & (1UL << bit)) == 0; |
| 34 | } |
| 35 | |
| 36 | /* |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 37 | * Mark a given offset as used in the map. |
| 38 | */ |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 39 | 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] | 40 | { |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 41 | unsigned int min_bs = td->o.rw_min_bs; |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 42 | struct fio_file *f = io_u->file; |
Jens Axboe | a00735e | 2006-11-03 08:58:08 +0100 | [diff] [blame] | 43 | unsigned long long block; |
| 44 | unsigned int blocks; |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 45 | unsigned int nr_blocks; |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 46 | |
Jens Axboe | a00735e | 2006-11-03 08:58:08 +0100 | [diff] [blame] | 47 | block = io_u->offset / (unsigned long long) min_bs; |
| 48 | blocks = 0; |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 49 | nr_blocks = (io_u->buflen + min_bs - 1) / min_bs; |
| 50 | |
| 51 | while (blocks < nr_blocks) { |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 52 | unsigned int idx, bit; |
| 53 | |
Jens Axboe | 1e3d53a | 2007-03-22 19:01:48 +0100 | [diff] [blame] | 54 | /* |
| 55 | * If we have a mixed random workload, we may |
| 56 | * encounter blocks we already did IO to. |
| 57 | */ |
ljzhang,Yaxin Hu,Jianchao Tang | b6a4c7d | 2007-07-26 10:51:46 +0200 | [diff] [blame] | 58 | if (!td->o.ddir_nr == 1 && !random_map_free(td, f, block)) |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 59 | break; |
| 60 | |
| 61 | idx = RAND_MAP_IDX(td, f, block); |
| 62 | bit = RAND_MAP_BIT(td, f, block); |
| 63 | |
Jens Axboe | 0032bf9 | 2007-02-13 17:39:56 +0100 | [diff] [blame] | 64 | fio_assert(td, idx < f->num_maps); |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 65 | |
| 66 | f->file_map[idx] |= (1UL << bit); |
| 67 | block++; |
| 68 | blocks++; |
| 69 | } |
| 70 | |
Jens Axboe | a00735e | 2006-11-03 08:58:08 +0100 | [diff] [blame] | 71 | if ((blocks * min_bs) < io_u->buflen) |
| 72 | io_u->buflen = blocks * min_bs; |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 73 | } |
| 74 | |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame^] | 75 | static inline unsigned long long last_block(struct thread_data *td, |
| 76 | struct fio_file *f) |
| 77 | { |
| 78 | unsigned long long max_blocks; |
| 79 | |
| 80 | max_blocks = f->io_size / td->o.rw_min_bs; |
| 81 | if (!max_blocks) |
| 82 | return 0; |
| 83 | |
| 84 | return max_blocks - 1; |
| 85 | } |
| 86 | |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 87 | /* |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 88 | * Return the next free block in the map. |
| 89 | */ |
| 90 | static int get_next_free_block(struct thread_data *td, struct fio_file *f, |
| 91 | unsigned long long *b) |
| 92 | { |
| 93 | int i; |
| 94 | |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 95 | i = f->last_free_lookup; |
| 96 | *b = (i * BLOCKS_PER_MAP); |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 97 | while ((*b) * td->o.rw_min_bs < f->real_file_size) { |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 98 | if (f->file_map[i] != -1UL) { |
Jens Axboe | b12ebc6 | 2007-05-21 11:42:33 +0200 | [diff] [blame] | 99 | *b += fio_ffz(f->file_map[i]); |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame^] | 100 | if (*b > last_block(td, f)) |
| 101 | break; |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 102 | f->last_free_lookup = i; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 103 | return 0; |
| 104 | } |
| 105 | |
| 106 | *b += BLOCKS_PER_MAP; |
| 107 | i++; |
| 108 | } |
| 109 | |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame^] | 110 | dprint(FD_IO, "failed finding a free block\n"); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 111 | return 1; |
| 112 | } |
| 113 | |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 114 | static int get_next_rand_offset(struct thread_data *td, struct fio_file *f, |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame^] | 115 | unsigned long long *b) |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 116 | { |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 117 | unsigned long long r, rb; |
| 118 | int loops = 5; |
| 119 | |
| 120 | do { |
| 121 | r = os_random_long(&td->random_state); |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame^] | 122 | *b = last_block(td, f); |
| 123 | |
Jens Axboe | 43c63a7 | 2007-05-21 13:23:30 +0200 | [diff] [blame] | 124 | /* |
| 125 | * if we are not maintaining a random map, we are done. |
| 126 | */ |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 127 | if (td->o.norandommap) |
Jens Axboe | 43c63a7 | 2007-05-21 13:23:30 +0200 | [diff] [blame] | 128 | return 0; |
| 129 | |
| 130 | /* |
| 131 | * calculate map offset and chec if it's free |
| 132 | */ |
Jens Axboe | 273f8c9 | 2008-01-25 14:02:15 +0100 | [diff] [blame] | 133 | rb = *b; |
Jens Axboe | 43c63a7 | 2007-05-21 13:23:30 +0200 | [diff] [blame] | 134 | if (random_map_free(td, f, rb)) |
| 135 | return 0; |
| 136 | |
| 137 | } while (--loops); |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 138 | |
| 139 | /* |
Jens Axboe | 43c63a7 | 2007-05-21 13:23:30 +0200 | [diff] [blame] | 140 | * we get here, if we didn't suceed in looking up a block. generate |
| 141 | * a random start offset into the filemap, and find the first free |
| 142 | * block from there. |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 143 | */ |
Jens Axboe | 43c63a7 | 2007-05-21 13:23:30 +0200 | [diff] [blame] | 144 | loops = 10; |
| 145 | do { |
| 146 | f->last_free_lookup = (f->num_maps - 1) * (r / (RAND_MAX+1.0)); |
| 147 | if (!get_next_free_block(td, f, b)) |
| 148 | return 0; |
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 | r = os_random_long(&td->random_state); |
| 151 | } while (--loops); |
| 152 | |
| 153 | /* |
| 154 | * that didn't work either, try exhaustive search from the start |
| 155 | */ |
| 156 | f->last_free_lookup = 0; |
| 157 | return get_next_free_block(td, f, b); |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 158 | } |
| 159 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 160 | /* |
| 161 | * For random io, generate a random new block and see if it's used. Repeat |
| 162 | * until we find a free one. For sequential io, just return the end of |
| 163 | * the last io issued. |
| 164 | */ |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 165 | 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] | 166 | { |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 167 | struct fio_file *f = io_u->file; |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 168 | unsigned long long b; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 169 | |
Jens Axboe | ec4015d | 2007-03-23 08:04:27 +0100 | [diff] [blame] | 170 | if (td_random(td) && (td->o.ddir_nr && !--td->ddir_nr)) { |
| 171 | td->ddir_nr = td->o.ddir_nr; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 172 | |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame^] | 173 | if (get_next_rand_offset(td, f, &b)) |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 174 | return 1; |
Jens Axboe | 43063a1 | 2007-03-27 20:21:24 +0200 | [diff] [blame] | 175 | } else { |
ljzhang,Yaxin Hu,Jianchao Tang | 0c3d768 | 2007-07-26 10:59:25 +0200 | [diff] [blame] | 176 | if (f->last_pos >= f->real_file_size) { |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame^] | 177 | if (!td_random(td) || get_next_rand_offset(td, f, &b)) |
ljzhang,Yaxin Hu,Jianchao Tang | 0c3d768 | 2007-07-26 10:59:25 +0200 | [diff] [blame] | 178 | return 1; |
ljzhang,Yaxin Hu,Jianchao Tang | bcdedd0 | 2007-07-27 13:28:26 +0200 | [diff] [blame] | 179 | } else |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame^] | 180 | b = (f->last_pos - f->file_offset) / td->o.rw_min_bs; |
Jens Axboe | 43063a1 | 2007-03-27 20:21:24 +0200 | [diff] [blame] | 181 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 182 | |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame^] | 183 | io_u->offset = (b * td->o.rw_min_bs) + f->file_offset; |
| 184 | if (io_u->offset >= f->real_file_size) { |
| 185 | dprint(FD_IO, "get_next_offset: offset %llu >= size %llu\n", |
| 186 | io_u->offset, f->real_file_size); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 187 | return 1; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame^] | 188 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 189 | |
| 190 | return 0; |
| 191 | } |
| 192 | |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 193 | 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] | 194 | { |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 195 | const int ddir = io_u->ddir; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 196 | unsigned int buflen; |
| 197 | long r; |
| 198 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 199 | if (td->o.min_bs[ddir] == td->o.max_bs[ddir]) |
| 200 | buflen = td->o.min_bs[ddir]; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 201 | else { |
| 202 | r = os_random_long(&td->bsrange_state); |
Jens Axboe | 564ca97 | 2007-12-14 12:21:19 +0100 | [diff] [blame] | 203 | if (!td->o.bssplit_nr) |
| 204 | buflen = (unsigned int) (1 + (double) (td->o.max_bs[ddir] - 1) * r / (RAND_MAX + 1.0)); |
| 205 | else { |
| 206 | long perc = 0; |
| 207 | unsigned int i; |
| 208 | |
| 209 | for (i = 0; i < td->o.bssplit_nr; i++) { |
| 210 | struct bssplit *bsp = &td->o.bssplit[i]; |
| 211 | |
| 212 | buflen = bsp->bs; |
| 213 | perc += bsp->perc; |
| 214 | if (r <= ((LONG_MAX / 100L) * perc)) |
| 215 | break; |
| 216 | } |
| 217 | } |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 218 | if (!td->o.bs_unaligned) |
| 219 | buflen = (buflen + td->o.min_bs[ddir] - 1) & ~(td->o.min_bs[ddir] - 1); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 220 | } |
| 221 | |
Jens Axboe | 6a5e688 | 2007-07-26 10:47:51 +0200 | [diff] [blame] | 222 | if (io_u->offset + buflen > io_u->file->real_file_size) |
| 223 | buflen = td->o.min_bs[ddir]; |
| 224 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 225 | return buflen; |
| 226 | } |
| 227 | |
Jens Axboe | afe24a5 | 2007-03-16 20:27:27 +0100 | [diff] [blame] | 228 | static void set_rwmix_bytes(struct thread_data *td) |
| 229 | { |
| 230 | unsigned long long rbytes; |
| 231 | unsigned int diff; |
| 232 | |
| 233 | /* |
| 234 | * we do time or byte based switch. this is needed because |
| 235 | * buffered writes may issue a lot quicker than they complete, |
| 236 | * whereas reads do not. |
| 237 | */ |
| 238 | rbytes = td->io_bytes[td->rwmix_ddir] - td->rwmix_bytes; |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 239 | diff = td->o.rwmix[td->rwmix_ddir ^ 1]; |
Jens Axboe | afe24a5 | 2007-03-16 20:27:27 +0100 | [diff] [blame] | 240 | |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 241 | td->rwmix_bytes = td->io_bytes[td->rwmix_ddir] + (rbytes * ((100 - diff)) / diff); |
| 242 | } |
| 243 | |
| 244 | static inline enum fio_ddir get_rand_ddir(struct thread_data *td) |
| 245 | { |
| 246 | unsigned int v; |
| 247 | long r; |
| 248 | |
| 249 | r = os_random_long(&td->rwmix_state); |
| 250 | v = 1 + (int) (100.0 * (r / (RAND_MAX + 1.0))); |
| 251 | if (v < td->o.rwmix[DDIR_READ]) |
| 252 | return DDIR_READ; |
| 253 | |
| 254 | return DDIR_WRITE; |
Jens Axboe | afe24a5 | 2007-03-16 20:27:27 +0100 | [diff] [blame] | 255 | } |
| 256 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 257 | /* |
| 258 | * Return the data direction for the next io_u. If the job is a |
| 259 | * mixed read/write workload, check the rwmix cycle and switch if |
| 260 | * necessary. |
| 261 | */ |
Jens Axboe | 1e97cce | 2006-12-05 11:44:16 +0100 | [diff] [blame] | 262 | static enum fio_ddir get_rw_ddir(struct thread_data *td) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 263 | { |
| 264 | if (td_rw(td)) { |
| 265 | struct timeval now; |
| 266 | unsigned long elapsed; |
Jens Axboe | afe24a5 | 2007-03-16 20:27:27 +0100 | [diff] [blame] | 267 | unsigned int cycle; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 268 | |
Jens Axboe | 02bcaa8 | 2006-11-24 10:42:00 +0100 | [diff] [blame] | 269 | fio_gettime(&now, NULL); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 270 | elapsed = mtime_since_now(&td->rwmix_switch); |
| 271 | |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 272 | /* |
| 273 | * if this is the first cycle, make it shorter |
| 274 | */ |
Jens Axboe | afe24a5 | 2007-03-16 20:27:27 +0100 | [diff] [blame] | 275 | cycle = td->o.rwmixcycle; |
| 276 | if (!td->rwmix_bytes) |
| 277 | cycle /= 10; |
| 278 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 279 | /* |
| 280 | * Check if it's time to seed a new data direction. |
| 281 | */ |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 282 | if (elapsed >= cycle || |
Jens Axboe | afe24a5 | 2007-03-16 20:27:27 +0100 | [diff] [blame] | 283 | td->io_bytes[td->rwmix_ddir] >= td->rwmix_bytes) { |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 284 | unsigned long long max_bytes; |
| 285 | enum fio_ddir ddir; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 286 | |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 287 | /* |
| 288 | * Put a top limit on how many bytes we do for |
| 289 | * one data direction, to avoid overflowing the |
| 290 | * ranges too much |
| 291 | */ |
| 292 | ddir = get_rand_ddir(td); |
| 293 | max_bytes = td->this_io_bytes[ddir]; |
Jens Axboe | 7bb48f8 | 2007-03-27 15:30:28 +0200 | [diff] [blame] | 294 | if (max_bytes >= (td->o.size * td->o.rwmix[ddir] / 100)) { |
Jens Axboe | 38d77ca | 2007-03-21 14:20:20 +0100 | [diff] [blame] | 295 | if (!td->rw_end_set[ddir]) { |
| 296 | td->rw_end_set[ddir] = 1; |
| 297 | memcpy(&td->rw_end[ddir], &now, sizeof(now)); |
| 298 | } |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 299 | ddir ^= 1; |
Jens Axboe | 38d77ca | 2007-03-21 14:20:20 +0100 | [diff] [blame] | 300 | } |
Jens Axboe | e47f799 | 2007-03-21 14:05:39 +0100 | [diff] [blame] | 301 | |
| 302 | if (ddir != td->rwmix_ddir) |
| 303 | set_rwmix_bytes(td); |
| 304 | |
| 305 | td->rwmix_ddir = ddir; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 306 | memcpy(&td->rwmix_switch, &now, sizeof(now)); |
| 307 | } |
| 308 | return td->rwmix_ddir; |
| 309 | } else if (td_read(td)) |
| 310 | return DDIR_READ; |
| 311 | else |
| 312 | return DDIR_WRITE; |
| 313 | } |
| 314 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 315 | void put_io_u(struct thread_data *td, struct io_u *io_u) |
| 316 | { |
Jens Axboe | 0c6e751 | 2007-02-22 11:19:39 +0100 | [diff] [blame] | 317 | assert((io_u->flags & IO_U_F_FREE) == 0); |
| 318 | io_u->flags |= IO_U_F_FREE; |
| 319 | |
Jens Axboe | 2dbdab7 | 2007-04-26 10:21:15 +0200 | [diff] [blame] | 320 | if (io_u->file) |
| 321 | put_file(td, io_u->file); |
| 322 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 323 | io_u->file = NULL; |
| 324 | list_del(&io_u->list); |
| 325 | list_add(&io_u->list, &td->io_u_freelist); |
| 326 | td->cur_depth--; |
| 327 | } |
| 328 | |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 329 | void requeue_io_u(struct thread_data *td, struct io_u **io_u) |
| 330 | { |
| 331 | struct io_u *__io_u = *io_u; |
| 332 | |
Jens Axboe | 4d2e0f4 | 2007-02-24 13:31:57 +0100 | [diff] [blame] | 333 | __io_u->flags |= IO_U_F_FREE; |
| 334 | __io_u->flags &= ~IO_U_F_FLIGHT; |
| 335 | |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 336 | list_del(&__io_u->list); |
| 337 | list_add_tail(&__io_u->list, &td->io_u_requeues); |
| 338 | td->cur_depth--; |
| 339 | *io_u = NULL; |
| 340 | } |
| 341 | |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 342 | 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] | 343 | { |
Jens Axboe | b4c5e1a | 2007-10-25 18:44:45 +0200 | [diff] [blame] | 344 | if (td->io_ops->flags & FIO_NOIO) |
| 345 | goto out; |
| 346 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 347 | /* |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 348 | * see if it's time to sync |
| 349 | */ |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 350 | if (td->o.fsync_blocks && |
| 351 | !(td->io_issues[DDIR_WRITE] % td->o.fsync_blocks) && |
| 352 | td->io_issues[DDIR_WRITE] && should_fsync(td)) { |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 353 | io_u->ddir = DDIR_SYNC; |
Jens Axboe | c38e946 | 2007-03-27 08:48:48 +0200 | [diff] [blame] | 354 | goto out; |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 355 | } |
| 356 | |
Jens Axboe | a00735e | 2006-11-03 08:58:08 +0100 | [diff] [blame] | 357 | io_u->ddir = get_rw_ddir(td); |
| 358 | |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 359 | /* |
Jens Axboe | 48f5abd | 2007-07-20 13:25:04 +0200 | [diff] [blame] | 360 | * See if it's time to switch to a new zone |
| 361 | */ |
| 362 | if (td->zone_bytes >= td->o.zone_size) { |
| 363 | td->zone_bytes = 0; |
| 364 | io_u->file->last_pos += td->o.zone_skip; |
| 365 | td->io_skip_bytes += td->o.zone_skip; |
| 366 | } |
| 367 | |
| 368 | /* |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 369 | * No log, let the seq/rand engine retrieve the next buflen and |
| 370 | * position. |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 371 | */ |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame^] | 372 | if (get_next_offset(td, io_u)) { |
| 373 | dprint(FD_IO, "io_u %p, failed getting offset\n", io_u); |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 374 | return 1; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame^] | 375 | } |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 376 | |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 377 | io_u->buflen = get_next_buflen(td, io_u); |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame^] | 378 | if (!io_u->buflen) { |
| 379 | dprint(FD_IO, "io_u %p, failed getting buflen\n", io_u); |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 380 | return 1; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame^] | 381 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 382 | |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame^] | 383 | if (io_u->offset + io_u->buflen > io_u->file->real_file_size) { |
| 384 | dprint(FD_IO, "io_u %p, offset too large\n", io_u); |
Jens Axboe | 6a5e688 | 2007-07-26 10:47:51 +0200 | [diff] [blame] | 385 | return 1; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame^] | 386 | } |
Jens Axboe | 6a5e688 | 2007-07-26 10:47:51 +0200 | [diff] [blame] | 387 | |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 388 | /* |
| 389 | * mark entry before potentially trimming io_u |
| 390 | */ |
Jens Axboe | 8fd15a9 | 2007-03-27 08:46:33 +0200 | [diff] [blame] | 391 | if (td_random(td) && !td->o.norandommap) |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 392 | mark_random_map(td, io_u); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 393 | |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 394 | /* |
| 395 | * If using a write iolog, store this entry. |
| 396 | */ |
Jens Axboe | c38e946 | 2007-03-27 08:48:48 +0200 | [diff] [blame] | 397 | out: |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame^] | 398 | dprint_io_u(io_u, "fill_io_u"); |
Jens Axboe | d9d91e3 | 2008-01-31 13:25:42 +0100 | [diff] [blame] | 399 | td->zone_bytes += io_u->buflen; |
Jens Axboe | f29b25a | 2007-07-23 08:56:43 +0200 | [diff] [blame] | 400 | log_io_u(td, io_u); |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 401 | return 0; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 402 | } |
| 403 | |
Jens Axboe | b360506 | 2007-03-12 14:19:47 +0100 | [diff] [blame] | 404 | void io_u_mark_depth(struct thread_data *td, struct io_u *io_u) |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 405 | { |
| 406 | int index = 0; |
| 407 | |
Jens Axboe | b360506 | 2007-03-12 14:19:47 +0100 | [diff] [blame] | 408 | if (io_u->ddir == DDIR_SYNC) |
| 409 | return; |
| 410 | |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 411 | switch (td->cur_depth) { |
| 412 | default: |
Jens Axboe | a783e61 | 2007-06-19 09:50:28 +0200 | [diff] [blame] | 413 | index = 6; |
| 414 | break; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 415 | case 32 ... 63: |
Jens Axboe | a783e61 | 2007-06-19 09:50:28 +0200 | [diff] [blame] | 416 | index = 5; |
| 417 | break; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 418 | case 16 ... 31: |
Jens Axboe | a783e61 | 2007-06-19 09:50:28 +0200 | [diff] [blame] | 419 | index = 4; |
| 420 | break; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 421 | case 8 ... 15: |
Jens Axboe | a783e61 | 2007-06-19 09:50:28 +0200 | [diff] [blame] | 422 | index = 3; |
| 423 | break; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 424 | case 4 ... 7: |
Jens Axboe | a783e61 | 2007-06-19 09:50:28 +0200 | [diff] [blame] | 425 | index = 2; |
| 426 | break; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 427 | case 2 ... 3: |
Jens Axboe | a783e61 | 2007-06-19 09:50:28 +0200 | [diff] [blame] | 428 | index = 1; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 429 | case 1: |
| 430 | break; |
| 431 | } |
| 432 | |
Jens Axboe | 756867b | 2007-03-06 15:19:24 +0100 | [diff] [blame] | 433 | td->ts.io_u_map[index]++; |
Jens Axboe | b360506 | 2007-03-12 14:19:47 +0100 | [diff] [blame] | 434 | td->ts.total_io_u[io_u->ddir]++; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 435 | } |
| 436 | |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 437 | static void io_u_mark_lat_usec(struct thread_data *td, unsigned long usec) |
| 438 | { |
| 439 | int index = 0; |
| 440 | |
| 441 | assert(usec < 1000); |
| 442 | |
| 443 | switch (usec) { |
| 444 | case 750 ... 999: |
| 445 | index = 9; |
| 446 | break; |
| 447 | case 500 ... 749: |
| 448 | index = 8; |
| 449 | break; |
| 450 | case 250 ... 499: |
| 451 | index = 7; |
| 452 | break; |
| 453 | case 100 ... 249: |
| 454 | index = 6; |
| 455 | break; |
| 456 | case 50 ... 99: |
| 457 | index = 5; |
| 458 | break; |
| 459 | case 20 ... 49: |
| 460 | index = 4; |
| 461 | break; |
| 462 | case 10 ... 19: |
| 463 | index = 3; |
| 464 | break; |
| 465 | case 4 ... 9: |
| 466 | index = 2; |
| 467 | break; |
| 468 | case 2 ... 3: |
| 469 | index = 1; |
| 470 | case 0 ... 1: |
| 471 | break; |
| 472 | } |
| 473 | |
| 474 | assert(index < FIO_IO_U_LAT_U_NR); |
| 475 | td->ts.io_u_lat_u[index]++; |
| 476 | } |
| 477 | |
| 478 | 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] | 479 | { |
| 480 | int index = 0; |
| 481 | |
| 482 | switch (msec) { |
| 483 | default: |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 484 | index = 11; |
| 485 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 486 | case 1000 ... 1999: |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 487 | index = 10; |
| 488 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 489 | case 750 ... 999: |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 490 | index = 9; |
| 491 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 492 | case 500 ... 749: |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 493 | index = 8; |
| 494 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 495 | case 250 ... 499: |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 496 | index = 7; |
| 497 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 498 | case 100 ... 249: |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 499 | index = 6; |
| 500 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 501 | case 50 ... 99: |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 502 | index = 5; |
| 503 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 504 | case 20 ... 49: |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 505 | index = 4; |
| 506 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 507 | case 10 ... 19: |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 508 | index = 3; |
| 509 | break; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 510 | case 4 ... 9: |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 511 | index = 2; |
| 512 | break; |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 513 | case 2 ... 3: |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 514 | index = 1; |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 515 | case 0 ... 1: |
| 516 | break; |
| 517 | } |
| 518 | |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 519 | assert(index < FIO_IO_U_LAT_M_NR); |
| 520 | td->ts.io_u_lat_m[index]++; |
| 521 | } |
| 522 | |
| 523 | static void io_u_mark_latency(struct thread_data *td, unsigned long usec) |
| 524 | { |
| 525 | if (usec < 1000) |
| 526 | io_u_mark_lat_usec(td, usec); |
| 527 | else |
| 528 | io_u_mark_lat_msec(td, usec / 1000); |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 529 | } |
| 530 | |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 531 | /* |
| 532 | * Get next file to service by choosing one at random |
| 533 | */ |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 534 | static struct fio_file *get_next_file_rand(struct thread_data *td, int goodf, |
| 535 | int badf) |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 536 | { |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 537 | struct fio_file *f; |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 538 | int fno; |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 539 | |
| 540 | do { |
Jens Axboe | 7c83c08 | 2007-03-01 10:04:15 +0100 | [diff] [blame] | 541 | long r = os_random_long(&td->next_file_state); |
| 542 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 543 | fno = (unsigned int) ((double) td->o.nr_files * (r / (RAND_MAX + 1.0))); |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 544 | f = &td->files[fno]; |
Jens Axboe | 059e63c | 2007-03-27 20:34:47 +0200 | [diff] [blame] | 545 | if (f->flags & FIO_FILE_DONE) |
| 546 | continue; |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 547 | |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame^] | 548 | if ((!goodf || (f->flags & goodf)) && !(f->flags & badf)) { |
| 549 | dprint(FD_FILE, "get_next_file_rand: %p\n", f); |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 550 | return f; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame^] | 551 | } |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 552 | } while (1); |
| 553 | } |
| 554 | |
| 555 | /* |
| 556 | * Get next file to service by doing round robin between all available ones |
| 557 | */ |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 558 | static struct fio_file *get_next_file_rr(struct thread_data *td, int goodf, |
| 559 | int badf) |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 560 | { |
| 561 | unsigned int old_next_file = td->next_file; |
| 562 | struct fio_file *f; |
| 563 | |
| 564 | do { |
| 565 | f = &td->files[td->next_file]; |
| 566 | |
| 567 | td->next_file++; |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 568 | if (td->next_file >= td->o.nr_files) |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 569 | td->next_file = 0; |
| 570 | |
Jens Axboe | d5ed68e | 2007-03-28 09:33:43 +0200 | [diff] [blame] | 571 | if (f->flags & FIO_FILE_DONE) { |
| 572 | f = NULL; |
Jens Axboe | 059e63c | 2007-03-27 20:34:47 +0200 | [diff] [blame] | 573 | continue; |
Jens Axboe | d5ed68e | 2007-03-28 09:33:43 +0200 | [diff] [blame] | 574 | } |
Jens Axboe | 059e63c | 2007-03-27 20:34:47 +0200 | [diff] [blame] | 575 | |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 576 | if ((!goodf || (f->flags & goodf)) && !(f->flags & badf)) |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 577 | break; |
| 578 | |
| 579 | f = NULL; |
| 580 | } while (td->next_file != old_next_file); |
| 581 | |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame^] | 582 | dprint(FD_FILE, "get_next_file_rr: %p\n", f); |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 583 | return f; |
| 584 | } |
| 585 | |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 586 | static struct fio_file *get_next_file(struct thread_data *td) |
| 587 | { |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 588 | struct fio_file *f; |
| 589 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 590 | assert(td->o.nr_files <= td->files_index); |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 591 | |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame^] | 592 | if (!td->nr_open_files || td->nr_done_files >= td->o.nr_files) { |
| 593 | dprint(FD_FILE, "get_next_file: nr_open=%d, nr_done=%d, nr_files=%d\n", td->nr_open_files, td->nr_done_files, td->o.nr_files); |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 594 | return NULL; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame^] | 595 | } |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 596 | |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 597 | f = td->file_service_file; |
Jens Axboe | f11bd94 | 2007-03-13 10:16:34 +0100 | [diff] [blame] | 598 | if (f && (f->flags & FIO_FILE_OPEN) && td->file_service_left--) |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame^] | 599 | goto out; |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 600 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 601 | if (td->o.file_service_type == FIO_FSERVICE_RR) |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 602 | f = get_next_file_rr(td, FIO_FILE_OPEN, FIO_FILE_CLOSING); |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 603 | else |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 604 | f = get_next_file_rand(td, FIO_FILE_OPEN, FIO_FILE_CLOSING); |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 605 | |
| 606 | td->file_service_file = f; |
| 607 | td->file_service_left = td->file_service_nr - 1; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame^] | 608 | out: |
| 609 | dprint(FD_FILE, "get_next_file: %p\n", f); |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 610 | return f; |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 611 | } |
| 612 | |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 613 | static struct fio_file *find_next_new_file(struct thread_data *td) |
| 614 | { |
| 615 | struct fio_file *f; |
| 616 | |
Jens Axboe | 1020a13 | 2007-03-29 11:15:06 +0200 | [diff] [blame] | 617 | if (!td->nr_open_files || td->nr_done_files >= td->o.nr_files) |
| 618 | return NULL; |
| 619 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 620 | if (td->o.file_service_type == FIO_FSERVICE_RR) |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame] | 621 | f = get_next_file_rr(td, 0, FIO_FILE_OPEN); |
| 622 | else |
| 623 | f = get_next_file_rand(td, 0, FIO_FILE_OPEN); |
| 624 | |
| 625 | return f; |
| 626 | } |
| 627 | |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 628 | static int set_io_u_file(struct thread_data *td, struct io_u *io_u) |
| 629 | { |
| 630 | struct fio_file *f; |
| 631 | |
| 632 | do { |
| 633 | f = get_next_file(td); |
| 634 | if (!f) |
| 635 | return 1; |
| 636 | |
| 637 | set_file: |
| 638 | io_u->file = f; |
| 639 | get_file(f); |
| 640 | |
| 641 | if (!fill_io_u(td, io_u)) |
| 642 | break; |
| 643 | |
| 644 | /* |
| 645 | * td_io_close() does a put_file() as well, so no need to |
| 646 | * do that here. |
| 647 | */ |
| 648 | io_u->file = NULL; |
| 649 | td_io_close_file(td, f); |
| 650 | f->flags |= FIO_FILE_DONE; |
| 651 | td->nr_done_files++; |
| 652 | |
| 653 | /* |
| 654 | * probably not the right place to do this, but see |
| 655 | * if we need to open a new file |
| 656 | */ |
| 657 | if (td->nr_open_files < td->o.open_files && |
| 658 | td->o.open_files != td->o.nr_files) { |
| 659 | f = find_next_new_file(td); |
| 660 | |
| 661 | if (!f || td_io_open_file(td, f)) |
| 662 | return 1; |
| 663 | |
| 664 | goto set_file; |
| 665 | } |
| 666 | } while (1); |
| 667 | |
| 668 | return 0; |
| 669 | } |
| 670 | |
| 671 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 672 | struct io_u *__get_io_u(struct thread_data *td) |
| 673 | { |
| 674 | struct io_u *io_u = NULL; |
| 675 | |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 676 | if (!list_empty(&td->io_u_requeues)) |
| 677 | io_u = list_entry(td->io_u_requeues.next, struct io_u, list); |
| 678 | else if (!queue_full(td)) { |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 679 | io_u = list_entry(td->io_u_freelist.next, struct io_u, list); |
| 680 | |
Jens Axboe | 6040dab | 2006-10-24 19:38:15 +0200 | [diff] [blame] | 681 | io_u->buflen = 0; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 682 | io_u->resid = 0; |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 683 | io_u->file = NULL; |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 684 | io_u->end_io = NULL; |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 685 | } |
| 686 | |
| 687 | if (io_u) { |
Jens Axboe | 0c6e751 | 2007-02-22 11:19:39 +0100 | [diff] [blame] | 688 | assert(io_u->flags & IO_U_F_FREE); |
| 689 | io_u->flags &= ~IO_U_F_FREE; |
| 690 | |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 691 | io_u->error = 0; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 692 | list_del(&io_u->list); |
| 693 | list_add(&io_u->list, &td->io_u_busylist); |
| 694 | td->cur_depth++; |
| 695 | } |
| 696 | |
| 697 | return io_u; |
| 698 | } |
| 699 | |
| 700 | /* |
| 701 | * Return an io_u to be processed. Gets a buflen and offset, sets direction, |
| 702 | * etc. The returned io_u is fully ready to be prepped and submitted. |
| 703 | */ |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 704 | struct io_u *get_io_u(struct thread_data *td) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 705 | { |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 706 | struct fio_file *f; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 707 | struct io_u *io_u; |
| 708 | |
| 709 | io_u = __get_io_u(td); |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame^] | 710 | if (!io_u) { |
| 711 | dprint(FD_IO, "__get_io_u failed\n"); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 712 | return NULL; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame^] | 713 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 714 | |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 715 | /* |
| 716 | * from a requeue, io_u already setup |
| 717 | */ |
| 718 | if (io_u->file) |
Jens Axboe | 77f392b | 2007-02-19 20:13:09 +0100 | [diff] [blame] | 719 | goto out; |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 720 | |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 721 | /* |
| 722 | * If using an iolog, grab next piece if any available. |
| 723 | */ |
| 724 | if (td->o.read_iolog_file) { |
| 725 | if (read_iolog_get(td, io_u)) |
| 726 | goto err_put; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame^] | 727 | } else if (set_io_u_file(td, io_u)) { |
| 728 | dprint(FD_IO, "io_u %p, setting file failed\n", io_u); |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 729 | goto err_put; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame^] | 730 | } |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 731 | |
| 732 | f = io_u->file; |
| 733 | assert(f->flags & FIO_FILE_OPEN); |
Jens Axboe | 97af62c | 2007-05-22 11:12:13 +0200 | [diff] [blame] | 734 | |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 735 | if (io_u->ddir != DDIR_SYNC) { |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame^] | 736 | if (!io_u->buflen) { |
| 737 | 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] | 738 | goto err_put; |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame^] | 739 | } |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 740 | |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 741 | f->last_pos = io_u->offset + io_u->buflen; |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 742 | |
Jens Axboe | 2dc1bbe | 2007-03-15 15:01:33 +0100 | [diff] [blame] | 743 | if (td->o.verify != VERIFY_NONE) |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 744 | populate_verify_io_u(td, io_u); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 745 | } |
| 746 | |
Jens Axboe | 165faf1 | 2007-02-07 11:30:37 +0100 | [diff] [blame] | 747 | /* |
| 748 | * Set io data pointers. |
| 749 | */ |
Jens Axboe | d460eb3 | 2007-04-16 21:39:33 +0200 | [diff] [blame] | 750 | io_u->endpos = io_u->offset + io_u->buflen; |
Jens Axboe | 77f392b | 2007-02-19 20:13:09 +0100 | [diff] [blame] | 751 | out: |
Jens Axboe | cec6b55 | 2007-02-06 20:15:38 +0100 | [diff] [blame] | 752 | io_u->xfer_buf = io_u->buf; |
| 753 | io_u->xfer_buflen = io_u->buflen; |
Jens Axboe | 165faf1 | 2007-02-07 11:30:37 +0100 | [diff] [blame] | 754 | |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 755 | if (!td_io_prep(td, io_u)) { |
| 756 | fio_gettime(&io_u->start_time, NULL); |
| 757 | return io_u; |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 758 | } |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 759 | err_put: |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame^] | 760 | dprint(FD_IO, "get_io_u failed\n"); |
Jens Axboe | 429f667 | 2007-07-23 10:38:43 +0200 | [diff] [blame] | 761 | put_io_u(td, io_u); |
| 762 | return NULL; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 763 | } |
| 764 | |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 765 | void io_u_log_error(struct thread_data *td, struct io_u *io_u) |
| 766 | { |
| 767 | const char *msg[] = { "read", "write", "sync" }; |
| 768 | |
| 769 | log_err("fio: io_u error"); |
| 770 | |
| 771 | if (io_u->file) |
| 772 | log_err(" on file %s", io_u->file->file_name); |
| 773 | |
| 774 | log_err(": %s\n", strerror(io_u->error)); |
| 775 | |
| 776 | log_err(" %s offset=%llu, buflen=%lu\n", msg[io_u->ddir], io_u->offset, io_u->xfer_buflen); |
| 777 | |
| 778 | if (!td->error) |
| 779 | td_verror(td, io_u->error, "io_u error"); |
| 780 | } |
| 781 | |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 782 | static void io_completed(struct thread_data *td, struct io_u *io_u, |
| 783 | struct io_completion_data *icd) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 784 | { |
Jens Axboe | d85f511 | 2007-06-18 09:41:23 +0200 | [diff] [blame] | 785 | unsigned long usec; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 786 | |
Jens Axboe | 2ba1c29 | 2008-02-01 13:16:38 +0100 | [diff] [blame^] | 787 | dprint_io_u(io_u, "io complete"); |
| 788 | |
Jens Axboe | 0c6e751 | 2007-02-22 11:19:39 +0100 | [diff] [blame] | 789 | assert(io_u->flags & IO_U_F_FLIGHT); |
| 790 | io_u->flags &= ~IO_U_F_FLIGHT; |
| 791 | |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 792 | if (io_u->ddir == DDIR_SYNC) { |
| 793 | td->last_was_sync = 1; |
| 794 | return; |
| 795 | } |
| 796 | |
| 797 | td->last_was_sync = 0; |
| 798 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 799 | if (!io_u->error) { |
| 800 | unsigned int bytes = io_u->buflen - io_u->resid; |
Jens Axboe | 1e97cce | 2006-12-05 11:44:16 +0100 | [diff] [blame] | 801 | const enum fio_ddir idx = io_u->ddir; |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 802 | int ret; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 803 | |
| 804 | td->io_blocks[idx]++; |
| 805 | td->io_bytes[idx] += bytes; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 806 | td->this_io_bytes[idx] += bytes; |
| 807 | |
Jens Axboe | d460eb3 | 2007-04-16 21:39:33 +0200 | [diff] [blame] | 808 | io_u->file->last_completed_pos = io_u->endpos; |
Jens Axboe | 02bcaa8 | 2006-11-24 10:42:00 +0100 | [diff] [blame] | 809 | |
Jens Axboe | d85f511 | 2007-06-18 09:41:23 +0200 | [diff] [blame] | 810 | usec = utime_since(&io_u->issue_time, &icd->time); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 811 | |
Jens Axboe | d85f511 | 2007-06-18 09:41:23 +0200 | [diff] [blame] | 812 | add_clat_sample(td, idx, usec); |
Jens Axboe | 02bcaa8 | 2006-11-24 10:42:00 +0100 | [diff] [blame] | 813 | add_bw_sample(td, idx, &icd->time); |
Jens Axboe | 04a0fea | 2007-06-19 12:48:41 +0200 | [diff] [blame] | 814 | io_u_mark_latency(td, usec); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 815 | |
Jens Axboe | 660a1cb | 2007-04-17 15:37:47 +0200 | [diff] [blame] | 816 | if (td_write(td) && idx == DDIR_WRITE && |
Shawn Lewis | 8670579 | 2007-11-21 09:35:41 +0100 | [diff] [blame] | 817 | td->o.do_verify && |
Jens Axboe | 4112840 | 2007-03-27 08:32:48 +0200 | [diff] [blame] | 818 | td->o.verify != VERIFY_NONE) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 819 | log_io_piece(td, io_u); |
| 820 | |
| 821 | icd->bytes_done[idx] += bytes; |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 822 | |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 823 | if (io_u->end_io) { |
Jens Axboe | 36690c9 | 2007-03-26 10:23:34 +0200 | [diff] [blame] | 824 | ret = io_u->end_io(td, io_u); |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 825 | if (ret && !icd->error) |
| 826 | icd->error = ret; |
| 827 | } |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 828 | } else { |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 829 | icd->error = io_u->error; |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 830 | io_u_log_error(td, io_u); |
| 831 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 832 | } |
| 833 | |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 834 | static void init_icd(struct io_completion_data *icd, int nr) |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 835 | { |
| 836 | fio_gettime(&icd->time, NULL); |
| 837 | |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 838 | icd->nr = nr; |
| 839 | |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 840 | icd->error = 0; |
| 841 | icd->bytes_done[0] = icd->bytes_done[1] = 0; |
| 842 | } |
| 843 | |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 844 | static void ios_completed(struct thread_data *td, |
| 845 | struct io_completion_data *icd) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 846 | { |
| 847 | struct io_u *io_u; |
| 848 | int i; |
| 849 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 850 | for (i = 0; i < icd->nr; i++) { |
| 851 | io_u = td->io_ops->event(td, i); |
| 852 | |
| 853 | io_completed(td, io_u, icd); |
| 854 | put_io_u(td, io_u); |
| 855 | } |
| 856 | } |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 857 | |
Jens Axboe | e7e6cfb | 2007-02-20 10:58:34 +0100 | [diff] [blame] | 858 | /* |
| 859 | * Complete a single io_u for the sync engines. |
| 860 | */ |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 861 | 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] | 862 | { |
| 863 | struct io_completion_data icd; |
| 864 | |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 865 | init_icd(&icd, 1); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 866 | io_completed(td, io_u, &icd); |
| 867 | put_io_u(td, io_u); |
| 868 | |
| 869 | if (!icd.error) |
| 870 | return icd.bytes_done[0] + icd.bytes_done[1]; |
| 871 | |
Jens Axboe | 37e974a | 2007-03-02 15:16:45 +0100 | [diff] [blame] | 872 | td_verror(td, icd.error, "io_u_sync_complete"); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 873 | return -1; |
| 874 | } |
| 875 | |
Jens Axboe | e7e6cfb | 2007-02-20 10:58:34 +0100 | [diff] [blame] | 876 | /* |
| 877 | * Called to complete min_events number of io for the async engines. |
| 878 | */ |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 879 | long io_u_queued_complete(struct thread_data *td, int min_events) |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 880 | { |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 881 | struct io_completion_data icd; |
Jens Axboe | 00de55e | 2007-02-20 10:45:57 +0100 | [diff] [blame] | 882 | struct timespec *tvp = NULL; |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 883 | int ret; |
Davide Libenzi | 4d06a33 | 2007-03-22 07:43:50 +0100 | [diff] [blame] | 884 | struct timespec ts = { .tv_sec = 0, .tv_nsec = 0, }; |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 885 | |
Davide Libenzi | 4d06a33 | 2007-03-22 07:43:50 +0100 | [diff] [blame] | 886 | if (!min_events) |
Jens Axboe | 00de55e | 2007-02-20 10:45:57 +0100 | [diff] [blame] | 887 | tvp = &ts; |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 888 | |
Jens Axboe | 00de55e | 2007-02-20 10:45:57 +0100 | [diff] [blame] | 889 | ret = td_io_getevents(td, min_events, td->cur_depth, tvp); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 890 | if (ret < 0) { |
Jens Axboe | e1161c3 | 2007-02-22 19:36:48 +0100 | [diff] [blame] | 891 | td_verror(td, -ret, "td_io_getevents"); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 892 | return ret; |
| 893 | } else if (!ret) |
| 894 | return ret; |
| 895 | |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 896 | init_icd(&icd, ret); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 897 | ios_completed(td, &icd); |
| 898 | if (!icd.error) |
| 899 | return icd.bytes_done[0] + icd.bytes_done[1]; |
| 900 | |
Jens Axboe | 37e974a | 2007-03-02 15:16:45 +0100 | [diff] [blame] | 901 | td_verror(td, icd.error, "io_u_queued_complete"); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 902 | return -1; |
| 903 | } |
Jens Axboe | 7e77dd0 | 2007-02-20 10:57:34 +0100 | [diff] [blame] | 904 | |
| 905 | /* |
| 906 | * Call when io_u is really queued, to update the submission latency. |
| 907 | */ |
| 908 | void io_u_queued(struct thread_data *td, struct io_u *io_u) |
| 909 | { |
| 910 | unsigned long slat_time; |
| 911 | |
Jens Axboe | d85f511 | 2007-06-18 09:41:23 +0200 | [diff] [blame] | 912 | slat_time = utime_since(&io_u->start_time, &io_u->issue_time); |
Jens Axboe | 7e77dd0 | 2007-02-20 10:57:34 +0100 | [diff] [blame] | 913 | add_slat_sample(td, io_u->ddir, slat_time); |
| 914 | } |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 915 | |
Jens Axboe | 55bc972 | 2007-02-22 11:30:05 +0100 | [diff] [blame] | 916 | #ifdef FIO_USE_TIMEOUT |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 917 | void io_u_set_timeout(struct thread_data *td) |
| 918 | { |
| 919 | assert(td->cur_depth); |
| 920 | |
| 921 | td->timer.it_interval.tv_sec = 0; |
| 922 | td->timer.it_interval.tv_usec = 0; |
| 923 | td->timer.it_value.tv_sec = IO_U_TIMEOUT + IO_U_TIMEOUT_INC; |
| 924 | td->timer.it_value.tv_usec = 0; |
| 925 | setitimer(ITIMER_REAL, &td->timer, NULL); |
| 926 | fio_gettime(&td->timeout_end, NULL); |
| 927 | } |
Jens Axboe | 5945b9b | 2007-02-22 20:33:01 +0100 | [diff] [blame] | 928 | |
| 929 | static void io_u_dump(struct io_u *io_u) |
| 930 | { |
| 931 | unsigned long t_start = mtime_since_now(&io_u->start_time); |
| 932 | unsigned long t_issue = mtime_since_now(&io_u->issue_time); |
| 933 | |
| 934 | log_err("io_u=%p, t_start=%lu, t_issue=%lu\n", io_u, t_start, t_issue); |
| 935 | log_err(" buf=%p/%p, len=%lu/%lu, offset=%llu\n", io_u->buf, io_u->xfer_buf, io_u->buflen, io_u->xfer_buflen, io_u->offset); |
| 936 | log_err(" ddir=%d, fname=%s\n", io_u->ddir, io_u->file->file_name); |
| 937 | } |
Jens Axboe | 55bc972 | 2007-02-22 11:30:05 +0100 | [diff] [blame] | 938 | #else |
| 939 | void io_u_set_timeout(struct thread_data fio_unused *td) |
| 940 | { |
| 941 | } |
| 942 | #endif |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 943 | |
Jens Axboe | 55bc972 | 2007-02-22 11:30:05 +0100 | [diff] [blame] | 944 | #ifdef FIO_USE_TIMEOUT |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 945 | static void io_u_timeout_handler(int fio_unused sig) |
| 946 | { |
| 947 | struct thread_data *td, *__td; |
| 948 | pid_t pid = getpid(); |
Jens Axboe | 5945b9b | 2007-02-22 20:33:01 +0100 | [diff] [blame] | 949 | struct list_head *entry; |
| 950 | struct io_u *io_u; |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 951 | int i; |
| 952 | |
| 953 | log_err("fio: io_u timeout\n"); |
| 954 | |
| 955 | /* |
| 956 | * TLS would be nice... |
| 957 | */ |
| 958 | td = NULL; |
| 959 | for_each_td(__td, i) { |
| 960 | if (__td->pid == pid) { |
| 961 | td = __td; |
| 962 | break; |
| 963 | } |
| 964 | } |
| 965 | |
| 966 | if (!td) { |
| 967 | log_err("fio: io_u timeout, can't find job\n"); |
| 968 | exit(1); |
| 969 | } |
| 970 | |
| 971 | if (!td->cur_depth) { |
| 972 | log_err("fio: timeout without pending work?\n"); |
| 973 | return; |
| 974 | } |
| 975 | |
Jens Axboe | 15506d0 | 2007-03-15 15:04:43 +0100 | [diff] [blame] | 976 | 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] | 977 | |
| 978 | list_for_each(entry, &td->io_u_busylist) { |
| 979 | io_u = list_entry(entry, struct io_u, list); |
| 980 | |
| 981 | io_u_dump(io_u); |
| 982 | } |
| 983 | |
| 984 | td_verror(td, ETIMEDOUT, "io_u timeout"); |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 985 | exit(1); |
| 986 | } |
Jens Axboe | 55bc972 | 2007-02-22 11:30:05 +0100 | [diff] [blame] | 987 | #endif |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 988 | |
| 989 | void io_u_init_timeout(void) |
| 990 | { |
Jens Axboe | 55bc972 | 2007-02-22 11:30:05 +0100 | [diff] [blame] | 991 | #ifdef FIO_USE_TIMEOUT |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 992 | signal(SIGALRM, io_u_timeout_handler); |
Jens Axboe | 55bc972 | 2007-02-22 11:30:05 +0100 | [diff] [blame] | 993 | #endif |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 994 | } |