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" |
| 9 | #include "os.h" |
| 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 | */ |
| 28 | static int random_map_free(struct thread_data *td, struct fio_file *f, |
| 29 | unsigned long long block) |
| 30 | { |
| 31 | unsigned int idx = RAND_MAP_IDX(td, f, block); |
| 32 | unsigned int bit = RAND_MAP_BIT(td, f, block); |
| 33 | |
| 34 | return (f->file_map[idx] & (1UL << bit)) == 0; |
| 35 | } |
| 36 | |
| 37 | /* |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 38 | * Mark a given offset as used in the map. |
| 39 | */ |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 40 | static void mark_random_map(struct thread_data *td, struct io_u *io_u) |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 41 | { |
Jens Axboe | afdbe58 | 2007-02-10 19:01:57 +0100 | [diff] [blame] | 42 | unsigned int min_bs = td->rw_min_bs; |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 43 | struct fio_file *f = io_u->file; |
Jens Axboe | a00735e | 2006-11-03 08:58:08 +0100 | [diff] [blame] | 44 | unsigned long long block; |
| 45 | unsigned int blocks; |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 46 | unsigned int nr_blocks; |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 47 | |
Jens Axboe | a00735e | 2006-11-03 08:58:08 +0100 | [diff] [blame] | 48 | block = io_u->offset / (unsigned long long) min_bs; |
| 49 | blocks = 0; |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 50 | nr_blocks = (io_u->buflen + min_bs - 1) / min_bs; |
| 51 | |
| 52 | while (blocks < nr_blocks) { |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 53 | unsigned int idx, bit; |
| 54 | |
| 55 | if (!random_map_free(td, f, block)) |
| 56 | break; |
| 57 | |
| 58 | idx = RAND_MAP_IDX(td, f, block); |
| 59 | bit = RAND_MAP_BIT(td, f, block); |
| 60 | |
Jens Axboe | 0032bf9 | 2007-02-13 17:39:56 +0100 | [diff] [blame] | 61 | fio_assert(td, idx < f->num_maps); |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 62 | |
| 63 | f->file_map[idx] |= (1UL << bit); |
| 64 | block++; |
| 65 | blocks++; |
| 66 | } |
| 67 | |
Jens Axboe | a00735e | 2006-11-03 08:58:08 +0100 | [diff] [blame] | 68 | if ((blocks * min_bs) < io_u->buflen) |
| 69 | io_u->buflen = blocks * min_bs; |
Jens Axboe | df41558 | 2006-10-20 11:41:03 +0200 | [diff] [blame] | 70 | } |
| 71 | |
| 72 | /* |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 73 | * Return the next free block in the map. |
| 74 | */ |
| 75 | static int get_next_free_block(struct thread_data *td, struct fio_file *f, |
| 76 | unsigned long long *b) |
| 77 | { |
| 78 | int i; |
| 79 | |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 80 | i = f->last_free_lookup; |
| 81 | *b = (i * BLOCKS_PER_MAP); |
Jens Axboe | ee88470 | 2006-12-20 10:58:07 +0100 | [diff] [blame] | 82 | while ((*b) * td->rw_min_bs < f->real_file_size) { |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 83 | if (f->file_map[i] != -1UL) { |
| 84 | *b += ffz(f->file_map[i]); |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 85 | f->last_free_lookup = i; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 86 | return 0; |
| 87 | } |
| 88 | |
| 89 | *b += BLOCKS_PER_MAP; |
| 90 | i++; |
| 91 | } |
| 92 | |
| 93 | return 1; |
| 94 | } |
| 95 | |
| 96 | /* |
| 97 | * For random io, generate a random new block and see if it's used. Repeat |
| 98 | * until we find a free one. For sequential io, just return the end of |
| 99 | * the last io issued. |
| 100 | */ |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 101 | 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] | 102 | { |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 103 | struct fio_file *f = io_u->file; |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 104 | const int ddir = io_u->ddir; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 105 | unsigned long long b, rb; |
| 106 | long r; |
| 107 | |
Jens Axboe | 413dd45 | 2007-02-23 09:26:09 +0100 | [diff] [blame] | 108 | if (td_random(td)) { |
Jens Axboe | f697125 | 2006-11-15 10:00:31 +0100 | [diff] [blame] | 109 | unsigned long long max_blocks = f->file_size / td->min_bs[ddir]; |
Jens Axboe | e643357 | 2007-03-08 14:02:42 +0100 | [diff] [blame] | 110 | int loops = 5; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 111 | |
| 112 | do { |
| 113 | r = os_random_long(&td->random_state); |
| 114 | b = ((max_blocks - 1) * r / (unsigned long long) (RAND_MAX+1.0)); |
Jens Axboe | bb8895e | 2006-10-30 15:14:48 +0100 | [diff] [blame] | 115 | if (td->norandommap) |
| 116 | break; |
Jens Axboe | a00735e | 2006-11-03 08:58:08 +0100 | [diff] [blame] | 117 | rb = b + (f->file_offset / td->min_bs[ddir]); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 118 | loops--; |
| 119 | } while (!random_map_free(td, f, rb) && loops); |
| 120 | |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 121 | /* |
| 122 | * if we failed to retrieve a truly random offset within |
| 123 | * the loops assigned, see if there are free ones left at all |
| 124 | */ |
| 125 | if (!loops && get_next_free_block(td, f, &b)) |
| 126 | return 1; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 127 | } else |
Jens Axboe | a00735e | 2006-11-03 08:58:08 +0100 | [diff] [blame] | 128 | b = f->last_pos / td->min_bs[ddir]; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 129 | |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 130 | io_u->offset = (b * td->min_bs[ddir]) + f->file_offset; |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 131 | if (io_u->offset >= f->real_file_size) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 132 | return 1; |
| 133 | |
| 134 | return 0; |
| 135 | } |
| 136 | |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 137 | 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] | 138 | { |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 139 | struct fio_file *f = io_u->file; |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 140 | const int ddir = io_u->ddir; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 141 | unsigned int buflen; |
| 142 | long r; |
| 143 | |
Jens Axboe | a00735e | 2006-11-03 08:58:08 +0100 | [diff] [blame] | 144 | if (td->min_bs[ddir] == td->max_bs[ddir]) |
| 145 | buflen = td->min_bs[ddir]; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 146 | else { |
| 147 | r = os_random_long(&td->bsrange_state); |
Jens Axboe | 1e97cce | 2006-12-05 11:44:16 +0100 | [diff] [blame] | 148 | buflen = (unsigned int) (1 + (double) (td->max_bs[ddir] - 1) * r / (RAND_MAX + 1.0)); |
Jens Axboe | 690adba | 2006-10-30 15:25:09 +0100 | [diff] [blame] | 149 | if (!td->bs_unaligned) |
Jens Axboe | a00735e | 2006-11-03 08:58:08 +0100 | [diff] [blame] | 150 | buflen = (buflen + td->min_bs[ddir] - 1) & ~(td->min_bs[ddir] - 1); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 151 | } |
| 152 | |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 153 | while (buflen + io_u->offset > f->real_file_size) { |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 154 | if (buflen == td->min_bs[ddir]) |
| 155 | return 0; |
| 156 | |
| 157 | buflen = td->min_bs[ddir]; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 158 | } |
| 159 | |
| 160 | return buflen; |
| 161 | } |
| 162 | |
| 163 | /* |
| 164 | * Return the data direction for the next io_u. If the job is a |
| 165 | * mixed read/write workload, check the rwmix cycle and switch if |
| 166 | * necessary. |
| 167 | */ |
Jens Axboe | 1e97cce | 2006-12-05 11:44:16 +0100 | [diff] [blame] | 168 | static enum fio_ddir get_rw_ddir(struct thread_data *td) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 169 | { |
| 170 | if (td_rw(td)) { |
| 171 | struct timeval now; |
| 172 | unsigned long elapsed; |
| 173 | |
Jens Axboe | 02bcaa8 | 2006-11-24 10:42:00 +0100 | [diff] [blame] | 174 | fio_gettime(&now, NULL); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 175 | elapsed = mtime_since_now(&td->rwmix_switch); |
| 176 | |
| 177 | /* |
| 178 | * Check if it's time to seed a new data direction. |
| 179 | */ |
| 180 | if (elapsed >= td->rwmixcycle) { |
| 181 | unsigned int v; |
| 182 | long r; |
| 183 | |
| 184 | r = os_random_long(&td->rwmix_state); |
| 185 | v = 1 + (int) (100.0 * (r / (RAND_MAX + 1.0))); |
| 186 | if (v < td->rwmixread) |
| 187 | td->rwmix_ddir = DDIR_READ; |
| 188 | else |
| 189 | td->rwmix_ddir = DDIR_WRITE; |
| 190 | memcpy(&td->rwmix_switch, &now, sizeof(now)); |
| 191 | } |
| 192 | return td->rwmix_ddir; |
| 193 | } else if (td_read(td)) |
| 194 | return DDIR_READ; |
| 195 | else |
| 196 | return DDIR_WRITE; |
| 197 | } |
| 198 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 199 | void put_io_u(struct thread_data *td, struct io_u *io_u) |
| 200 | { |
Jens Axboe | 0c6e751 | 2007-02-22 11:19:39 +0100 | [diff] [blame] | 201 | assert((io_u->flags & IO_U_F_FREE) == 0); |
| 202 | io_u->flags |= IO_U_F_FREE; |
| 203 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 204 | io_u->file = NULL; |
| 205 | list_del(&io_u->list); |
| 206 | list_add(&io_u->list, &td->io_u_freelist); |
| 207 | td->cur_depth--; |
| 208 | } |
| 209 | |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 210 | void requeue_io_u(struct thread_data *td, struct io_u **io_u) |
| 211 | { |
| 212 | struct io_u *__io_u = *io_u; |
| 213 | |
Jens Axboe | 4d2e0f4 | 2007-02-24 13:31:57 +0100 | [diff] [blame] | 214 | __io_u->flags |= IO_U_F_FREE; |
| 215 | __io_u->flags &= ~IO_U_F_FLIGHT; |
| 216 | |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 217 | list_del(&__io_u->list); |
| 218 | list_add_tail(&__io_u->list, &td->io_u_requeues); |
| 219 | td->cur_depth--; |
| 220 | *io_u = NULL; |
| 221 | } |
| 222 | |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 223 | 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] | 224 | { |
| 225 | /* |
| 226 | * If using an iolog, grab next piece if any available. |
| 227 | */ |
| 228 | if (td->read_iolog) |
| 229 | return read_iolog_get(td, io_u); |
| 230 | |
| 231 | /* |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 232 | * see if it's time to sync |
| 233 | */ |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 234 | if (td->fsync_blocks && !(td->io_issues[DDIR_WRITE] % td->fsync_blocks) |
| 235 | && td->io_issues[DDIR_WRITE] && should_fsync(td)) { |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 236 | io_u->ddir = DDIR_SYNC; |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 237 | return 0; |
| 238 | } |
| 239 | |
Jens Axboe | a00735e | 2006-11-03 08:58:08 +0100 | [diff] [blame] | 240 | io_u->ddir = get_rw_ddir(td); |
| 241 | |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 242 | /* |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 243 | * No log, let the seq/rand engine retrieve the next buflen and |
| 244 | * position. |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 245 | */ |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 246 | if (get_next_offset(td, io_u)) |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 247 | return 1; |
Jens Axboe | c685b5b | 2007-02-10 20:02:28 +0100 | [diff] [blame] | 248 | |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 249 | io_u->buflen = get_next_buflen(td, io_u); |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 250 | if (!io_u->buflen) |
| 251 | return 1; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 252 | |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 253 | /* |
| 254 | * mark entry before potentially trimming io_u |
| 255 | */ |
Jens Axboe | 413dd45 | 2007-02-23 09:26:09 +0100 | [diff] [blame] | 256 | if (!td->read_iolog && td_random(td) && !td->norandommap) |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 257 | mark_random_map(td, io_u); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 258 | |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 259 | /* |
| 260 | * If using a write iolog, store this entry. |
| 261 | */ |
| 262 | if (td->write_iolog_file) |
| 263 | write_iolog_put(td, io_u); |
| 264 | |
Jens Axboe | bca4ed4 | 2007-02-12 05:13:23 +0100 | [diff] [blame] | 265 | return 0; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 266 | } |
| 267 | |
Jens Axboe | b360506 | 2007-03-12 14:19:47 +0100 | [diff] [blame] | 268 | 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] | 269 | { |
| 270 | int index = 0; |
| 271 | |
Jens Axboe | b360506 | 2007-03-12 14:19:47 +0100 | [diff] [blame] | 272 | if (io_u->ddir == DDIR_SYNC) |
| 273 | return; |
| 274 | |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 275 | switch (td->cur_depth) { |
| 276 | default: |
| 277 | index++; |
| 278 | case 32 ... 63: |
| 279 | index++; |
| 280 | case 16 ... 31: |
| 281 | index++; |
| 282 | case 8 ... 15: |
| 283 | index++; |
| 284 | case 4 ... 7: |
| 285 | index++; |
| 286 | case 2 ... 3: |
| 287 | index++; |
| 288 | case 1: |
| 289 | break; |
| 290 | } |
| 291 | |
Jens Axboe | 756867b | 2007-03-06 15:19:24 +0100 | [diff] [blame] | 292 | td->ts.io_u_map[index]++; |
Jens Axboe | b360506 | 2007-03-12 14:19:47 +0100 | [diff] [blame] | 293 | td->ts.total_io_u[io_u->ddir]++; |
Jens Axboe | 71619dc | 2007-01-13 23:56:33 +0100 | [diff] [blame] | 294 | } |
| 295 | |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 296 | static void io_u_mark_latency(struct thread_data *td, unsigned long msec) |
| 297 | { |
| 298 | int index = 0; |
| 299 | |
| 300 | switch (msec) { |
| 301 | default: |
| 302 | index++; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 303 | case 1000 ... 1999: |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 304 | index++; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 305 | case 750 ... 999: |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 306 | index++; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 307 | case 500 ... 749: |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 308 | index++; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 309 | case 250 ... 499: |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 310 | index++; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 311 | case 100 ... 249: |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 312 | index++; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 313 | case 50 ... 99: |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 314 | index++; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 315 | case 20 ... 49: |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 316 | index++; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 317 | case 10 ... 19: |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 318 | index++; |
Jens Axboe | 8abdce6 | 2007-02-21 10:22:55 +0100 | [diff] [blame] | 319 | case 4 ... 9: |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 320 | index++; |
| 321 | case 2 ... 3: |
| 322 | index++; |
| 323 | case 0 ... 1: |
| 324 | break; |
| 325 | } |
| 326 | |
Jens Axboe | 756867b | 2007-03-06 15:19:24 +0100 | [diff] [blame] | 327 | td->ts.io_u_lat[index]++; |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 328 | } |
| 329 | |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 330 | /* |
| 331 | * Get next file to service by choosing one at random |
| 332 | */ |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame^] | 333 | static struct fio_file *get_next_file_rand(struct thread_data *td, int goodf, |
| 334 | int badf) |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 335 | { |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 336 | struct fio_file *f; |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame^] | 337 | int fno; |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 338 | |
| 339 | do { |
Jens Axboe | 7c83c08 | 2007-03-01 10:04:15 +0100 | [diff] [blame] | 340 | long r = os_random_long(&td->next_file_state); |
| 341 | |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame^] | 342 | fno = (unsigned int) ((double) td->nr_files * (r / (RAND_MAX + 1.0))); |
| 343 | f = &td->files[fno]; |
| 344 | |
| 345 | if ((!goodf || (f->flags & goodf)) && !(f->flags & badf)) |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 346 | return f; |
| 347 | } while (1); |
| 348 | } |
| 349 | |
| 350 | /* |
| 351 | * Get next file to service by doing round robin between all available ones |
| 352 | */ |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame^] | 353 | static struct fio_file *get_next_file_rr(struct thread_data *td, int goodf, |
| 354 | int badf) |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 355 | { |
| 356 | unsigned int old_next_file = td->next_file; |
| 357 | struct fio_file *f; |
| 358 | |
| 359 | do { |
| 360 | f = &td->files[td->next_file]; |
| 361 | |
| 362 | td->next_file++; |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame^] | 363 | if (td->next_file >= td->nr_files) |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 364 | td->next_file = 0; |
| 365 | |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame^] | 366 | if ((!goodf || (f->flags & goodf)) && !(f->flags & badf)) |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 367 | break; |
| 368 | |
| 369 | f = NULL; |
| 370 | } while (td->next_file != old_next_file); |
| 371 | |
| 372 | return f; |
| 373 | } |
| 374 | |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 375 | static struct fio_file *get_next_file(struct thread_data *td) |
| 376 | { |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 377 | struct fio_file *f; |
| 378 | |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame^] | 379 | assert(td->nr_files <= td->files_index); |
| 380 | |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 381 | if (!td->nr_open_files) |
| 382 | return NULL; |
| 383 | |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 384 | f = td->file_service_file; |
Jens Axboe | f11bd94 | 2007-03-13 10:16:34 +0100 | [diff] [blame] | 385 | if (f && (f->flags & FIO_FILE_OPEN) && td->file_service_left--) |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 386 | return f; |
| 387 | |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 388 | if (td->file_service_type == FIO_FSERVICE_RR) |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame^] | 389 | f = get_next_file_rr(td, FIO_FILE_OPEN, FIO_FILE_CLOSING); |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 390 | else |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame^] | 391 | f = get_next_file_rand(td, FIO_FILE_OPEN, FIO_FILE_CLOSING); |
Jens Axboe | 1907dbc | 2007-03-12 11:44:28 +0100 | [diff] [blame] | 392 | |
| 393 | td->file_service_file = f; |
| 394 | td->file_service_left = td->file_service_nr - 1; |
| 395 | return f; |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 396 | } |
| 397 | |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame^] | 398 | static struct fio_file *find_next_new_file(struct thread_data *td) |
| 399 | { |
| 400 | struct fio_file *f; |
| 401 | |
| 402 | if (td->file_service_type == FIO_FSERVICE_RR) |
| 403 | f = get_next_file_rr(td, 0, FIO_FILE_OPEN); |
| 404 | else |
| 405 | f = get_next_file_rand(td, 0, FIO_FILE_OPEN); |
| 406 | |
| 407 | return f; |
| 408 | } |
| 409 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 410 | struct io_u *__get_io_u(struct thread_data *td) |
| 411 | { |
| 412 | struct io_u *io_u = NULL; |
| 413 | |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 414 | if (!list_empty(&td->io_u_requeues)) |
| 415 | io_u = list_entry(td->io_u_requeues.next, struct io_u, list); |
| 416 | else if (!queue_full(td)) { |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 417 | io_u = list_entry(td->io_u_freelist.next, struct io_u, list); |
| 418 | |
Jens Axboe | 6040dab | 2006-10-24 19:38:15 +0200 | [diff] [blame] | 419 | io_u->buflen = 0; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 420 | io_u->resid = 0; |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 421 | io_u->file = NULL; |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 422 | io_u->end_io = NULL; |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 423 | } |
| 424 | |
| 425 | if (io_u) { |
Jens Axboe | 0c6e751 | 2007-02-22 11:19:39 +0100 | [diff] [blame] | 426 | assert(io_u->flags & IO_U_F_FREE); |
| 427 | io_u->flags &= ~IO_U_F_FREE; |
| 428 | |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 429 | io_u->error = 0; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 430 | list_del(&io_u->list); |
| 431 | list_add(&io_u->list, &td->io_u_busylist); |
| 432 | td->cur_depth++; |
| 433 | } |
| 434 | |
| 435 | return io_u; |
| 436 | } |
| 437 | |
| 438 | /* |
| 439 | * Return an io_u to be processed. Gets a buflen and offset, sets direction, |
| 440 | * etc. The returned io_u is fully ready to be prepped and submitted. |
| 441 | */ |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 442 | struct io_u *get_io_u(struct thread_data *td) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 443 | { |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 444 | struct fio_file *f; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 445 | struct io_u *io_u; |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame^] | 446 | int ret; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 447 | |
| 448 | io_u = __get_io_u(td); |
| 449 | if (!io_u) |
| 450 | return NULL; |
| 451 | |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 452 | /* |
| 453 | * from a requeue, io_u already setup |
| 454 | */ |
| 455 | if (io_u->file) |
Jens Axboe | 77f392b | 2007-02-19 20:13:09 +0100 | [diff] [blame] | 456 | goto out; |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 457 | |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 458 | do { |
| 459 | f = get_next_file(td); |
| 460 | if (!f) { |
| 461 | put_io_u(td, io_u); |
| 462 | return NULL; |
| 463 | } |
Jens Axboe | 0aabe16 | 2007-02-23 08:45:55 +0100 | [diff] [blame] | 464 | |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame^] | 465 | set_file: |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 466 | io_u->file = f; |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 467 | |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 468 | if (!fill_io_u(td, io_u)) |
| 469 | break; |
Jens Axboe | 3d7c391 | 2007-02-19 13:16:12 +0100 | [diff] [blame] | 470 | |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 471 | /* |
| 472 | * No more to do for this file, close it |
| 473 | */ |
| 474 | io_u->file = NULL; |
Jens Axboe | b5af829 | 2007-03-08 12:43:13 +0100 | [diff] [blame] | 475 | td_io_close_file(td, f); |
| 476 | |
| 477 | /* |
| 478 | * probably not the right place to do this, but see |
| 479 | * if we need to open a new file |
| 480 | */ |
| 481 | if (td->nr_open_files < td->nr_files && |
Jens Axboe | a978ba6 | 2007-03-08 14:29:03 +0100 | [diff] [blame] | 482 | td->open_files != td->nr_files) { |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame^] | 483 | f = find_next_new_file(td); |
Jens Axboe | a978ba6 | 2007-03-08 14:29:03 +0100 | [diff] [blame] | 484 | |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame^] | 485 | if (!f || (ret = td_io_open_file(td, f))) { |
Jens Axboe | a978ba6 | 2007-03-08 14:29:03 +0100 | [diff] [blame] | 486 | put_io_u(td, io_u); |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame^] | 487 | break; |
Jens Axboe | a978ba6 | 2007-03-08 14:29:03 +0100 | [diff] [blame] | 488 | } |
Jens Axboe | 1c17818 | 2007-03-13 13:25:18 +0100 | [diff] [blame^] | 489 | goto set_file; |
Jens Axboe | a978ba6 | 2007-03-08 14:29:03 +0100 | [diff] [blame] | 490 | } |
Jens Axboe | bdb4e2e | 2007-03-01 09:54:57 +0100 | [diff] [blame] | 491 | } while (1); |
Jens Axboe | 9bf2061 | 2007-03-01 09:33:57 +0100 | [diff] [blame] | 492 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 493 | if (td->zone_bytes >= td->zone_size) { |
| 494 | td->zone_bytes = 0; |
| 495 | f->last_pos += td->zone_skip; |
| 496 | } |
| 497 | |
Jens Axboe | ee88470 | 2006-12-20 10:58:07 +0100 | [diff] [blame] | 498 | if (io_u->buflen + io_u->offset > f->real_file_size) { |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 499 | if (td->io_ops->flags & FIO_RAWIO) { |
| 500 | put_io_u(td, io_u); |
| 501 | return NULL; |
| 502 | } |
| 503 | |
Jens Axboe | ee88470 | 2006-12-20 10:58:07 +0100 | [diff] [blame] | 504 | io_u->buflen = f->real_file_size - io_u->offset; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 505 | } |
| 506 | |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 507 | if (io_u->ddir != DDIR_SYNC) { |
| 508 | if (!io_u->buflen) { |
| 509 | put_io_u(td, io_u); |
| 510 | return NULL; |
| 511 | } |
| 512 | |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 513 | f->last_pos = io_u->offset + io_u->buflen; |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 514 | |
| 515 | if (td->verify != VERIFY_NONE) |
| 516 | populate_verify_io_u(td, io_u); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 517 | } |
| 518 | |
Jens Axboe | 165faf1 | 2007-02-07 11:30:37 +0100 | [diff] [blame] | 519 | /* |
| 520 | * Set io data pointers. |
| 521 | */ |
Jens Axboe | 77f392b | 2007-02-19 20:13:09 +0100 | [diff] [blame] | 522 | out: |
Jens Axboe | cec6b55 | 2007-02-06 20:15:38 +0100 | [diff] [blame] | 523 | io_u->xfer_buf = io_u->buf; |
| 524 | io_u->xfer_buflen = io_u->buflen; |
Jens Axboe | 165faf1 | 2007-02-07 11:30:37 +0100 | [diff] [blame] | 525 | |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 526 | if (td_io_prep(td, io_u)) { |
| 527 | put_io_u(td, io_u); |
| 528 | return NULL; |
| 529 | } |
| 530 | |
Jens Axboe | 02bcaa8 | 2006-11-24 10:42:00 +0100 | [diff] [blame] | 531 | fio_gettime(&io_u->start_time, NULL); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 532 | return io_u; |
| 533 | } |
| 534 | |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 535 | void io_u_log_error(struct thread_data *td, struct io_u *io_u) |
| 536 | { |
| 537 | const char *msg[] = { "read", "write", "sync" }; |
| 538 | |
| 539 | log_err("fio: io_u error"); |
| 540 | |
| 541 | if (io_u->file) |
| 542 | log_err(" on file %s", io_u->file->file_name); |
| 543 | |
| 544 | log_err(": %s\n", strerror(io_u->error)); |
| 545 | |
| 546 | log_err(" %s offset=%llu, buflen=%lu\n", msg[io_u->ddir], io_u->offset, io_u->xfer_buflen); |
| 547 | |
| 548 | if (!td->error) |
| 549 | td_verror(td, io_u->error, "io_u error"); |
| 550 | } |
| 551 | |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 552 | static void io_completed(struct thread_data *td, struct io_u *io_u, |
| 553 | struct io_completion_data *icd) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 554 | { |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 555 | unsigned long msec; |
| 556 | |
Jens Axboe | 0c6e751 | 2007-02-22 11:19:39 +0100 | [diff] [blame] | 557 | assert(io_u->flags & IO_U_F_FLIGHT); |
| 558 | io_u->flags &= ~IO_U_F_FLIGHT; |
| 559 | |
Jens Axboe | 0ad920e | 2007-03-13 11:06:45 +0100 | [diff] [blame] | 560 | put_file(td, io_u->file); |
| 561 | |
Jens Axboe | 87dc1ab | 2006-10-24 14:41:26 +0200 | [diff] [blame] | 562 | if (io_u->ddir == DDIR_SYNC) { |
| 563 | td->last_was_sync = 1; |
| 564 | return; |
| 565 | } |
| 566 | |
| 567 | td->last_was_sync = 0; |
| 568 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 569 | if (!io_u->error) { |
| 570 | unsigned int bytes = io_u->buflen - io_u->resid; |
Jens Axboe | 1e97cce | 2006-12-05 11:44:16 +0100 | [diff] [blame] | 571 | const enum fio_ddir idx = io_u->ddir; |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 572 | int ret; |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 573 | |
| 574 | td->io_blocks[idx]++; |
| 575 | td->io_bytes[idx] += bytes; |
| 576 | td->zone_bytes += bytes; |
| 577 | td->this_io_bytes[idx] += bytes; |
| 578 | |
Jens Axboe | 02bcaa8 | 2006-11-24 10:42:00 +0100 | [diff] [blame] | 579 | io_u->file->last_completed_pos = io_u->offset + io_u->buflen; |
| 580 | |
| 581 | msec = mtime_since(&io_u->issue_time, &icd->time); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 582 | |
| 583 | add_clat_sample(td, idx, msec); |
Jens Axboe | 02bcaa8 | 2006-11-24 10:42:00 +0100 | [diff] [blame] | 584 | add_bw_sample(td, idx, &icd->time); |
Jens Axboe | ec11830 | 2007-02-17 04:38:20 +0100 | [diff] [blame] | 585 | io_u_mark_latency(td, msec); |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 586 | |
| 587 | if ((td_rw(td) || td_write(td)) && idx == DDIR_WRITE) |
| 588 | log_io_piece(td, io_u); |
| 589 | |
| 590 | icd->bytes_done[idx] += bytes; |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 591 | |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 592 | if (io_u->end_io) { |
| 593 | ret = io_u->end_io(io_u); |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 594 | if (ret && !icd->error) |
| 595 | icd->error = ret; |
| 596 | } |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 597 | } else { |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 598 | icd->error = io_u->error; |
Jens Axboe | 5451792 | 2007-03-05 10:06:06 +0100 | [diff] [blame] | 599 | io_u_log_error(td, io_u); |
| 600 | } |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 601 | } |
| 602 | |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 603 | static void init_icd(struct io_completion_data *icd, int nr) |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 604 | { |
| 605 | fio_gettime(&icd->time, NULL); |
| 606 | |
Jens Axboe | 3af6ef3 | 2007-02-18 06:57:43 +0100 | [diff] [blame] | 607 | icd->nr = nr; |
| 608 | |
Jens Axboe | 36167d8 | 2007-02-18 05:41:31 +0100 | [diff] [blame] | 609 | icd->error = 0; |
| 610 | icd->bytes_done[0] = icd->bytes_done[1] = 0; |
| 611 | } |
| 612 | |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 613 | static void ios_completed(struct thread_data *td, |
| 614 | struct io_completion_data *icd) |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 615 | { |
| 616 | struct io_u *io_u; |
| 617 | int i; |
| 618 | |
Jens Axboe | 10ba535 | 2006-10-20 11:39:27 +0200 | [diff] [blame] | 619 | for (i = 0; i < icd->nr; i++) { |
| 620 | io_u = td->io_ops->event(td, i); |
| 621 | |
| 622 | io_completed(td, io_u, icd); |
| 623 | put_io_u(td, io_u); |
| 624 | } |
| 625 | } |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 626 | |
Jens Axboe | e7e6cfb | 2007-02-20 10:58:34 +0100 | [diff] [blame] | 627 | /* |
| 628 | * Complete a single io_u for the sync engines. |
| 629 | */ |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 630 | 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] | 631 | { |
| 632 | struct io_completion_data icd; |
| 633 | |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 634 | init_icd(&icd, 1); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 635 | io_completed(td, io_u, &icd); |
| 636 | put_io_u(td, io_u); |
| 637 | |
| 638 | if (!icd.error) |
| 639 | return icd.bytes_done[0] + icd.bytes_done[1]; |
| 640 | |
Jens Axboe | 37e974a | 2007-03-02 15:16:45 +0100 | [diff] [blame] | 641 | td_verror(td, icd.error, "io_u_sync_complete"); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 642 | return -1; |
| 643 | } |
| 644 | |
Jens Axboe | e7e6cfb | 2007-02-20 10:58:34 +0100 | [diff] [blame] | 645 | /* |
| 646 | * Called to complete min_events number of io for the async engines. |
| 647 | */ |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 648 | long io_u_queued_complete(struct thread_data *td, int min_events) |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 649 | { |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 650 | struct io_completion_data icd; |
Jens Axboe | 00de55e | 2007-02-20 10:45:57 +0100 | [diff] [blame] | 651 | struct timespec *tvp = NULL; |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 652 | int ret; |
| 653 | |
Jens Axboe | face81b | 2007-02-26 10:40:03 +0100 | [diff] [blame] | 654 | if (!min_events) { |
Jens Axboe | 00de55e | 2007-02-20 10:45:57 +0100 | [diff] [blame] | 655 | struct timespec ts = { .tv_sec = 0, .tv_nsec = 0, }; |
| 656 | |
| 657 | tvp = &ts; |
Jens Axboe | 755200a | 2007-02-19 13:08:12 +0100 | [diff] [blame] | 658 | } |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 659 | |
Jens Axboe | 00de55e | 2007-02-20 10:45:57 +0100 | [diff] [blame] | 660 | ret = td_io_getevents(td, min_events, td->cur_depth, tvp); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 661 | if (ret < 0) { |
Jens Axboe | e1161c3 | 2007-02-22 19:36:48 +0100 | [diff] [blame] | 662 | td_verror(td, -ret, "td_io_getevents"); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 663 | return ret; |
| 664 | } else if (!ret) |
| 665 | return ret; |
| 666 | |
Jens Axboe | d7762cf | 2007-02-23 12:34:57 +0100 | [diff] [blame] | 667 | init_icd(&icd, ret); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 668 | ios_completed(td, &icd); |
| 669 | if (!icd.error) |
| 670 | return icd.bytes_done[0] + icd.bytes_done[1]; |
| 671 | |
Jens Axboe | 37e974a | 2007-03-02 15:16:45 +0100 | [diff] [blame] | 672 | td_verror(td, icd.error, "io_u_queued_complete"); |
Jens Axboe | 9760102 | 2007-02-18 12:47:29 +0100 | [diff] [blame] | 673 | return -1; |
| 674 | } |
Jens Axboe | 7e77dd0 | 2007-02-20 10:57:34 +0100 | [diff] [blame] | 675 | |
| 676 | /* |
| 677 | * Call when io_u is really queued, to update the submission latency. |
| 678 | */ |
| 679 | void io_u_queued(struct thread_data *td, struct io_u *io_u) |
| 680 | { |
| 681 | unsigned long slat_time; |
| 682 | |
| 683 | slat_time = mtime_since(&io_u->start_time, &io_u->issue_time); |
| 684 | add_slat_sample(td, io_u->ddir, slat_time); |
| 685 | } |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 686 | |
Jens Axboe | 55bc972 | 2007-02-22 11:30:05 +0100 | [diff] [blame] | 687 | #ifdef FIO_USE_TIMEOUT |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 688 | void io_u_set_timeout(struct thread_data *td) |
| 689 | { |
| 690 | assert(td->cur_depth); |
| 691 | |
| 692 | td->timer.it_interval.tv_sec = 0; |
| 693 | td->timer.it_interval.tv_usec = 0; |
| 694 | td->timer.it_value.tv_sec = IO_U_TIMEOUT + IO_U_TIMEOUT_INC; |
| 695 | td->timer.it_value.tv_usec = 0; |
| 696 | setitimer(ITIMER_REAL, &td->timer, NULL); |
| 697 | fio_gettime(&td->timeout_end, NULL); |
| 698 | } |
Jens Axboe | 5945b9b | 2007-02-22 20:33:01 +0100 | [diff] [blame] | 699 | |
| 700 | static void io_u_dump(struct io_u *io_u) |
| 701 | { |
| 702 | unsigned long t_start = mtime_since_now(&io_u->start_time); |
| 703 | unsigned long t_issue = mtime_since_now(&io_u->issue_time); |
| 704 | |
| 705 | log_err("io_u=%p, t_start=%lu, t_issue=%lu\n", io_u, t_start, t_issue); |
| 706 | 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); |
| 707 | log_err(" ddir=%d, fname=%s\n", io_u->ddir, io_u->file->file_name); |
| 708 | } |
Jens Axboe | 55bc972 | 2007-02-22 11:30:05 +0100 | [diff] [blame] | 709 | #else |
| 710 | void io_u_set_timeout(struct thread_data fio_unused *td) |
| 711 | { |
| 712 | } |
| 713 | #endif |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 714 | |
Jens Axboe | 55bc972 | 2007-02-22 11:30:05 +0100 | [diff] [blame] | 715 | #ifdef FIO_USE_TIMEOUT |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 716 | static void io_u_timeout_handler(int fio_unused sig) |
| 717 | { |
| 718 | struct thread_data *td, *__td; |
| 719 | pid_t pid = getpid(); |
Jens Axboe | 5945b9b | 2007-02-22 20:33:01 +0100 | [diff] [blame] | 720 | struct list_head *entry; |
| 721 | struct io_u *io_u; |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 722 | int i; |
| 723 | |
| 724 | log_err("fio: io_u timeout\n"); |
| 725 | |
| 726 | /* |
| 727 | * TLS would be nice... |
| 728 | */ |
| 729 | td = NULL; |
| 730 | for_each_td(__td, i) { |
| 731 | if (__td->pid == pid) { |
| 732 | td = __td; |
| 733 | break; |
| 734 | } |
| 735 | } |
| 736 | |
| 737 | if (!td) { |
| 738 | log_err("fio: io_u timeout, can't find job\n"); |
| 739 | exit(1); |
| 740 | } |
| 741 | |
| 742 | if (!td->cur_depth) { |
| 743 | log_err("fio: timeout without pending work?\n"); |
| 744 | return; |
| 745 | } |
| 746 | |
| 747 | log_err("fio: io_u timeout: job=%s, pid=%d\n", td->name, td->pid); |
Jens Axboe | 5945b9b | 2007-02-22 20:33:01 +0100 | [diff] [blame] | 748 | |
| 749 | list_for_each(entry, &td->io_u_busylist) { |
| 750 | io_u = list_entry(entry, struct io_u, list); |
| 751 | |
| 752 | io_u_dump(io_u); |
| 753 | } |
| 754 | |
| 755 | td_verror(td, ETIMEDOUT, "io_u timeout"); |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 756 | exit(1); |
| 757 | } |
Jens Axboe | 55bc972 | 2007-02-22 11:30:05 +0100 | [diff] [blame] | 758 | #endif |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 759 | |
| 760 | void io_u_init_timeout(void) |
| 761 | { |
Jens Axboe | 55bc972 | 2007-02-22 11:30:05 +0100 | [diff] [blame] | 762 | #ifdef FIO_USE_TIMEOUT |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 763 | signal(SIGALRM, io_u_timeout_handler); |
Jens Axboe | 55bc972 | 2007-02-22 11:30:05 +0100 | [diff] [blame] | 764 | #endif |
Jens Axboe | 433afcb | 2007-02-22 10:39:01 +0100 | [diff] [blame] | 765 | } |