Commit | Line | Data |
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10ba535a JA |
1 | #include <unistd.h> |
2 | #include <fcntl.h> | |
3 | #include <string.h> | |
4 | #include <signal.h> | |
5 | #include <time.h> | |
0c6e7517 | 6 | #include <assert.h> |
10ba535a JA |
7 | |
8 | #include "fio.h" | |
5973cafb | 9 | #include "hash.h" |
10ba535a | 10 | |
5945b9b4 JA |
11 | /* |
12 | * Change this define to play with the timeout handling | |
13 | */ | |
14 | #undef FIO_USE_TIMEOUT | |
15 | ||
97601024 JA |
16 | struct io_completion_data { |
17 | int nr; /* input */ | |
97601024 JA |
18 | |
19 | int error; /* output */ | |
20 | unsigned long bytes_done[2]; /* output */ | |
21 | struct timeval time; /* output */ | |
22 | }; | |
23 | ||
10ba535a JA |
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 | */ | |
aec2de20 | 28 | static int random_map_free(struct fio_file *f, const unsigned long long block) |
10ba535a | 29 | { |
aec2de20 JA |
30 | unsigned int idx = RAND_MAP_IDX(f, block); |
31 | unsigned int bit = RAND_MAP_BIT(f, block); | |
10ba535a | 32 | |
84422acd JA |
33 | dprint(FD_RANDOM, "free: b=%llu, idx=%u, bit=%u\n", block, idx, bit); |
34 | ||
de605666 | 35 | return (f->file_map[idx] & (1 << bit)) == 0; |
10ba535a JA |
36 | } |
37 | ||
df415585 JA |
38 | /* |
39 | * Mark a given offset as used in the map. | |
40 | */ | |
9bf2061e | 41 | static void mark_random_map(struct thread_data *td, struct io_u *io_u) |
df415585 | 42 | { |
2dc1bbeb | 43 | unsigned int min_bs = td->o.rw_min_bs; |
9bf2061e | 44 | struct fio_file *f = io_u->file; |
a00735e6 | 45 | unsigned long long block; |
3e3357b1 | 46 | unsigned int blocks, nr_blocks; |
df415585 | 47 | |
b9c5b644 | 48 | block = (io_u->offset - f->file_offset) / (unsigned long long) min_bs; |
c685b5b2 | 49 | nr_blocks = (io_u->buflen + min_bs - 1) / min_bs; |
3e3357b1 | 50 | blocks = 0; |
c685b5b2 | 51 | |
3e3357b1 JA |
52 | while (nr_blocks) { |
53 | unsigned int this_blocks, mask; | |
df415585 JA |
54 | unsigned int idx, bit; |
55 | ||
1e3d53ac JA |
56 | /* |
57 | * If we have a mixed random workload, we may | |
58 | * encounter blocks we already did IO to. | |
59 | */ | |
8b113b4f JA |
60 | if ((td->o.ddir_nr == 1) && !random_map_free(f, block)) { |
61 | if (!blocks) | |
62 | blocks = 1; | |
df415585 | 63 | break; |
8b113b4f | 64 | } |
df415585 | 65 | |
aec2de20 JA |
66 | idx = RAND_MAP_IDX(f, block); |
67 | bit = RAND_MAP_BIT(f, block); | |
df415585 | 68 | |
0032bf9f | 69 | fio_assert(td, idx < f->num_maps); |
df415585 | 70 | |
3e3357b1 JA |
71 | this_blocks = nr_blocks; |
72 | if (this_blocks + bit > BLOCKS_PER_MAP) | |
73 | this_blocks = BLOCKS_PER_MAP - bit; | |
74 | ||
75 | if (this_blocks == BLOCKS_PER_MAP) | |
76 | mask = -1U; | |
77 | else | |
78 | mask = ((1U << this_blocks) - 1) << bit; | |
79 | ||
80 | fio_assert(td, !(f->file_map[idx] & mask)); | |
81 | f->file_map[idx] |= mask; | |
82 | nr_blocks -= this_blocks; | |
83 | blocks += this_blocks; | |
c9dd34b2 | 84 | block += this_blocks; |
df415585 JA |
85 | } |
86 | ||
a00735e6 JA |
87 | if ((blocks * min_bs) < io_u->buflen) |
88 | io_u->buflen = blocks * min_bs; | |
df415585 JA |
89 | } |
90 | ||
3e3357b1 JA |
91 | static unsigned long long last_block(struct thread_data *td, struct fio_file *f, |
92 | enum fio_ddir ddir) | |
2ba1c290 JA |
93 | { |
94 | unsigned long long max_blocks; | |
d9dd70f7 | 95 | unsigned long long max_size; |
2ba1c290 | 96 | |
d9dd70f7 JA |
97 | /* |
98 | * Hmm, should we make sure that ->io_size <= ->real_file_size? | |
99 | */ | |
100 | max_size = f->io_size; | |
101 | if (max_size > f->real_file_size) | |
102 | max_size = f->real_file_size; | |
103 | ||
104 | max_blocks = max_size / (unsigned long long) td->o.min_bs[ddir]; | |
2ba1c290 JA |
105 | if (!max_blocks) |
106 | return 0; | |
107 | ||
67778e88 | 108 | return max_blocks; |
2ba1c290 JA |
109 | } |
110 | ||
10ba535a JA |
111 | /* |
112 | * Return the next free block in the map. | |
113 | */ | |
114 | static int get_next_free_block(struct thread_data *td, struct fio_file *f, | |
4ba66134 | 115 | enum fio_ddir ddir, unsigned long long *b) |
10ba535a | 116 | { |
84422acd | 117 | unsigned long long min_bs = td->o.rw_min_bs; |
10ba535a JA |
118 | int i; |
119 | ||
c685b5b2 JA |
120 | i = f->last_free_lookup; |
121 | *b = (i * BLOCKS_PER_MAP); | |
84422acd | 122 | while ((*b) * min_bs < f->real_file_size) { |
de605666 | 123 | if (f->file_map[i] != (unsigned int) -1) { |
697a606c | 124 | *b += ffz(f->file_map[i]); |
4ba66134 | 125 | if (*b > last_block(td, f, ddir)) |
2ba1c290 | 126 | break; |
c685b5b2 | 127 | f->last_free_lookup = i; |
10ba535a JA |
128 | return 0; |
129 | } | |
130 | ||
131 | *b += BLOCKS_PER_MAP; | |
132 | i++; | |
133 | } | |
134 | ||
2ba1c290 | 135 | dprint(FD_IO, "failed finding a free block\n"); |
10ba535a JA |
136 | return 1; |
137 | } | |
138 | ||
ec4015da | 139 | static int get_next_rand_offset(struct thread_data *td, struct fio_file *f, |
4ba66134 | 140 | enum fio_ddir ddir, unsigned long long *b) |
ec4015da | 141 | { |
84422acd | 142 | unsigned long long r; |
ec4015da JA |
143 | int loops = 5; |
144 | ||
145 | do { | |
146 | r = os_random_long(&td->random_state); | |
84422acd | 147 | dprint(FD_RANDOM, "off rand %llu\n", r); |
5ec10eaa JA |
148 | *b = (last_block(td, f, ddir) - 1) |
149 | * (r / ((unsigned long long) RAND_MAX + 1.0)); | |
2ba1c290 | 150 | |
43c63a78 JA |
151 | /* |
152 | * if we are not maintaining a random map, we are done. | |
153 | */ | |
303032ae | 154 | if (!file_randommap(td, f)) |
43c63a78 JA |
155 | return 0; |
156 | ||
157 | /* | |
84422acd | 158 | * calculate map offset and check if it's free |
43c63a78 | 159 | */ |
aec2de20 | 160 | if (random_map_free(f, *b)) |
43c63a78 JA |
161 | return 0; |
162 | ||
84422acd JA |
163 | dprint(FD_RANDOM, "get_next_rand_offset: offset %llu busy\n", |
164 | *b); | |
43c63a78 | 165 | } while (--loops); |
ec4015da JA |
166 | |
167 | /* | |
43c63a78 JA |
168 | * we get here, if we didn't suceed in looking up a block. generate |
169 | * a random start offset into the filemap, and find the first free | |
170 | * block from there. | |
ec4015da | 171 | */ |
43c63a78 JA |
172 | loops = 10; |
173 | do { | |
174 | f->last_free_lookup = (f->num_maps - 1) * (r / (RAND_MAX+1.0)); | |
4ba66134 | 175 | if (!get_next_free_block(td, f, ddir, b)) |
43c63a78 | 176 | return 0; |
ec4015da | 177 | |
43c63a78 JA |
178 | r = os_random_long(&td->random_state); |
179 | } while (--loops); | |
180 | ||
181 | /* | |
182 | * that didn't work either, try exhaustive search from the start | |
183 | */ | |
184 | f->last_free_lookup = 0; | |
4ba66134 | 185 | return get_next_free_block(td, f, ddir, b); |
ec4015da JA |
186 | } |
187 | ||
10ba535a JA |
188 | /* |
189 | * For random io, generate a random new block and see if it's used. Repeat | |
190 | * until we find a free one. For sequential io, just return the end of | |
191 | * the last io issued. | |
192 | */ | |
9bf2061e | 193 | static int get_next_offset(struct thread_data *td, struct io_u *io_u) |
10ba535a | 194 | { |
9bf2061e | 195 | struct fio_file *f = io_u->file; |
ec4015da | 196 | unsigned long long b; |
4ba66134 | 197 | enum fio_ddir ddir = io_u->ddir; |
10ba535a | 198 | |
ec4015da JA |
199 | if (td_random(td) && (td->o.ddir_nr && !--td->ddir_nr)) { |
200 | td->ddir_nr = td->o.ddir_nr; | |
211097b2 | 201 | |
4ba66134 | 202 | if (get_next_rand_offset(td, f, ddir, &b)) |
bca4ed4d | 203 | return 1; |
43063a1c | 204 | } else { |
0c3d768a | 205 | if (f->last_pos >= f->real_file_size) { |
4ba66134 JA |
206 | if (!td_random(td) || |
207 | get_next_rand_offset(td, f, ddir, &b)) | |
0c3d768a | 208 | return 1; |
bcdedd0a | 209 | } else |
4ba66134 | 210 | b = (f->last_pos - f->file_offset) / td->o.min_bs[ddir]; |
43063a1c | 211 | } |
10ba535a | 212 | |
009bd847 JA |
213 | io_u->offset = b * td->o.min_bs[ddir]; |
214 | if (io_u->offset >= f->io_size) { | |
215 | dprint(FD_IO, "get_next_offset: offset %llu >= io_size %llu\n", | |
216 | io_u->offset, f->io_size); | |
217 | return 1; | |
218 | } | |
219 | ||
220 | io_u->offset += f->file_offset; | |
2ba1c290 JA |
221 | if (io_u->offset >= f->real_file_size) { |
222 | dprint(FD_IO, "get_next_offset: offset %llu >= size %llu\n", | |
223 | io_u->offset, f->real_file_size); | |
10ba535a | 224 | return 1; |
2ba1c290 | 225 | } |
10ba535a JA |
226 | |
227 | return 0; | |
228 | } | |
229 | ||
9bf2061e | 230 | static unsigned int get_next_buflen(struct thread_data *td, struct io_u *io_u) |
10ba535a | 231 | { |
bca4ed4d | 232 | const int ddir = io_u->ddir; |
fc4398fd | 233 | unsigned int buflen = buflen; /* silence dumb gcc warning */ |
10ba535a JA |
234 | long r; |
235 | ||
2dc1bbeb JA |
236 | if (td->o.min_bs[ddir] == td->o.max_bs[ddir]) |
237 | buflen = td->o.min_bs[ddir]; | |
10ba535a JA |
238 | else { |
239 | r = os_random_long(&td->bsrange_state); | |
5ec10eaa JA |
240 | if (!td->o.bssplit_nr) { |
241 | buflen = (unsigned int) | |
242 | (1 + (double) (td->o.max_bs[ddir] - 1) | |
243 | * r / (RAND_MAX + 1.0)); | |
244 | } else { | |
564ca972 JA |
245 | long perc = 0; |
246 | unsigned int i; | |
247 | ||
248 | for (i = 0; i < td->o.bssplit_nr; i++) { | |
249 | struct bssplit *bsp = &td->o.bssplit[i]; | |
250 | ||
251 | buflen = bsp->bs; | |
252 | perc += bsp->perc; | |
253 | if (r <= ((LONG_MAX / 100L) * perc)) | |
254 | break; | |
255 | } | |
256 | } | |
5ec10eaa JA |
257 | if (!td->o.bs_unaligned) { |
258 | buflen = (buflen + td->o.min_bs[ddir] - 1) | |
259 | & ~(td->o.min_bs[ddir] - 1); | |
260 | } | |
10ba535a JA |
261 | } |
262 | ||
4ba66134 JA |
263 | if (io_u->offset + buflen > io_u->file->real_file_size) { |
264 | dprint(FD_IO, "lower buflen %u -> %u (ddir=%d)\n", buflen, | |
265 | td->o.min_bs[ddir], ddir); | |
6a5e6884 | 266 | buflen = td->o.min_bs[ddir]; |
4ba66134 | 267 | } |
6a5e6884 | 268 | |
10ba535a JA |
269 | return buflen; |
270 | } | |
271 | ||
afe24a5a JA |
272 | static void set_rwmix_bytes(struct thread_data *td) |
273 | { | |
afe24a5a JA |
274 | unsigned int diff; |
275 | ||
276 | /* | |
277 | * we do time or byte based switch. this is needed because | |
278 | * buffered writes may issue a lot quicker than they complete, | |
279 | * whereas reads do not. | |
280 | */ | |
e47f799f | 281 | diff = td->o.rwmix[td->rwmix_ddir ^ 1]; |
04c540d9 | 282 | td->rwmix_issues = (td->io_issues[td->rwmix_ddir] * diff) / 100; |
e47f799f JA |
283 | } |
284 | ||
285 | static inline enum fio_ddir get_rand_ddir(struct thread_data *td) | |
286 | { | |
287 | unsigned int v; | |
288 | long r; | |
289 | ||
290 | r = os_random_long(&td->rwmix_state); | |
291 | v = 1 + (int) (100.0 * (r / (RAND_MAX + 1.0))); | |
04c540d9 | 292 | if (v <= td->o.rwmix[DDIR_READ]) |
e47f799f JA |
293 | return DDIR_READ; |
294 | ||
295 | return DDIR_WRITE; | |
afe24a5a JA |
296 | } |
297 | ||
10ba535a JA |
298 | /* |
299 | * Return the data direction for the next io_u. If the job is a | |
300 | * mixed read/write workload, check the rwmix cycle and switch if | |
301 | * necessary. | |
302 | */ | |
1e97cce9 | 303 | static enum fio_ddir get_rw_ddir(struct thread_data *td) |
10ba535a JA |
304 | { |
305 | if (td_rw(td)) { | |
10ba535a JA |
306 | /* |
307 | * Check if it's time to seed a new data direction. | |
308 | */ | |
e4928662 | 309 | if (td->io_issues[td->rwmix_ddir] >= td->rwmix_issues) { |
e47f799f | 310 | unsigned long long max_bytes; |
5ec10eaa | 311 | enum fio_ddir ddir; |
e47f799f JA |
312 | |
313 | /* | |
314 | * Put a top limit on how many bytes we do for | |
315 | * one data direction, to avoid overflowing the | |
316 | * ranges too much | |
317 | */ | |
318 | ddir = get_rand_ddir(td); | |
319 | max_bytes = td->this_io_bytes[ddir]; | |
5ec10eaa JA |
320 | if (max_bytes >= |
321 | (td->o.size * td->o.rwmix[ddir] / 100)) { | |
e4928662 | 322 | if (!td->rw_end_set[ddir]) |
38d77cae | 323 | td->rw_end_set[ddir] = 1; |
e4928662 | 324 | |
e47f799f | 325 | ddir ^= 1; |
38d77cae | 326 | } |
e47f799f JA |
327 | |
328 | if (ddir != td->rwmix_ddir) | |
329 | set_rwmix_bytes(td); | |
330 | ||
331 | td->rwmix_ddir = ddir; | |
10ba535a JA |
332 | } |
333 | return td->rwmix_ddir; | |
334 | } else if (td_read(td)) | |
335 | return DDIR_READ; | |
336 | else | |
337 | return DDIR_WRITE; | |
338 | } | |
339 | ||
60f2c658 JA |
340 | static void put_file_log(struct thread_data *td, struct fio_file *f) |
341 | { | |
342 | int ret = put_file(td, f); | |
343 | ||
344 | if (ret) | |
345 | td_verror(td, ret, "file close"); | |
346 | } | |
347 | ||
10ba535a JA |
348 | void put_io_u(struct thread_data *td, struct io_u *io_u) |
349 | { | |
0c6e7517 JA |
350 | assert((io_u->flags & IO_U_F_FREE) == 0); |
351 | io_u->flags |= IO_U_F_FREE; | |
352 | ||
60f2c658 JA |
353 | if (io_u->file) |
354 | put_file_log(td, io_u->file); | |
2dbdab7e | 355 | |
10ba535a | 356 | io_u->file = NULL; |
01743ee1 JA |
357 | flist_del(&io_u->list); |
358 | flist_add(&io_u->list, &td->io_u_freelist); | |
10ba535a JA |
359 | td->cur_depth--; |
360 | } | |
361 | ||
755200a3 JA |
362 | void requeue_io_u(struct thread_data *td, struct io_u **io_u) |
363 | { | |
364 | struct io_u *__io_u = *io_u; | |
365 | ||
465221b0 JA |
366 | dprint(FD_IO, "requeue %p\n", __io_u); |
367 | ||
4d2e0f49 | 368 | __io_u->flags |= IO_U_F_FREE; |
e4f54adb JA |
369 | if ((__io_u->flags & IO_U_F_FLIGHT) && (__io_u->ddir != DDIR_SYNC)) |
370 | td->io_issues[__io_u->ddir]--; | |
5ec10eaa | 371 | |
4d2e0f49 JA |
372 | __io_u->flags &= ~IO_U_F_FLIGHT; |
373 | ||
01743ee1 JA |
374 | flist_del(&__io_u->list); |
375 | flist_add_tail(&__io_u->list, &td->io_u_requeues); | |
755200a3 JA |
376 | td->cur_depth--; |
377 | *io_u = NULL; | |
378 | } | |
379 | ||
9bf2061e | 380 | static int fill_io_u(struct thread_data *td, struct io_u *io_u) |
10ba535a | 381 | { |
b4c5e1ac JA |
382 | if (td->io_ops->flags & FIO_NOIO) |
383 | goto out; | |
384 | ||
87dc1ab1 JA |
385 | /* |
386 | * see if it's time to sync | |
387 | */ | |
2dc1bbeb JA |
388 | if (td->o.fsync_blocks && |
389 | !(td->io_issues[DDIR_WRITE] % td->o.fsync_blocks) && | |
390 | td->io_issues[DDIR_WRITE] && should_fsync(td)) { | |
87dc1ab1 | 391 | io_u->ddir = DDIR_SYNC; |
c38e9468 | 392 | goto out; |
87dc1ab1 JA |
393 | } |
394 | ||
a00735e6 JA |
395 | io_u->ddir = get_rw_ddir(td); |
396 | ||
48f5abd3 JA |
397 | /* |
398 | * See if it's time to switch to a new zone | |
399 | */ | |
400 | if (td->zone_bytes >= td->o.zone_size) { | |
401 | td->zone_bytes = 0; | |
402 | io_u->file->last_pos += td->o.zone_skip; | |
403 | td->io_skip_bytes += td->o.zone_skip; | |
404 | } | |
405 | ||
10ba535a | 406 | /* |
c685b5b2 JA |
407 | * No log, let the seq/rand engine retrieve the next buflen and |
408 | * position. | |
10ba535a | 409 | */ |
2ba1c290 JA |
410 | if (get_next_offset(td, io_u)) { |
411 | dprint(FD_IO, "io_u %p, failed getting offset\n", io_u); | |
bca4ed4d | 412 | return 1; |
2ba1c290 | 413 | } |
10ba535a | 414 | |
9bf2061e | 415 | io_u->buflen = get_next_buflen(td, io_u); |
2ba1c290 JA |
416 | if (!io_u->buflen) { |
417 | dprint(FD_IO, "io_u %p, failed getting buflen\n", io_u); | |
bca4ed4d | 418 | return 1; |
2ba1c290 | 419 | } |
bca4ed4d | 420 | |
2ba1c290 JA |
421 | if (io_u->offset + io_u->buflen > io_u->file->real_file_size) { |
422 | dprint(FD_IO, "io_u %p, offset too large\n", io_u); | |
4ba66134 JA |
423 | dprint(FD_IO, " off=%llu/%lu > %llu\n", io_u->offset, |
424 | io_u->buflen, io_u->file->real_file_size); | |
6a5e6884 | 425 | return 1; |
2ba1c290 | 426 | } |
6a5e6884 | 427 | |
bca4ed4d JA |
428 | /* |
429 | * mark entry before potentially trimming io_u | |
430 | */ | |
303032ae | 431 | if (td_random(td) && file_randommap(td, io_u->file)) |
9bf2061e | 432 | mark_random_map(td, io_u); |
bca4ed4d JA |
433 | |
434 | /* | |
435 | * If using a write iolog, store this entry. | |
436 | */ | |
c38e9468 | 437 | out: |
2ba1c290 | 438 | dprint_io_u(io_u, "fill_io_u"); |
d9d91e39 | 439 | td->zone_bytes += io_u->buflen; |
f29b25a3 | 440 | log_io_u(td, io_u); |
bca4ed4d | 441 | return 0; |
10ba535a JA |
442 | } |
443 | ||
838bc709 JA |
444 | static void __io_u_mark_map(unsigned int *map, unsigned int nr) |
445 | { | |
446 | int index = 0; | |
447 | ||
448 | switch (nr) { | |
449 | default: | |
450 | index = 6; | |
451 | break; | |
452 | case 33 ... 64: | |
453 | index = 5; | |
454 | break; | |
455 | case 17 ... 32: | |
456 | index = 4; | |
457 | break; | |
458 | case 9 ... 16: | |
459 | index = 3; | |
460 | break; | |
461 | case 5 ... 8: | |
462 | index = 2; | |
463 | break; | |
464 | case 1 ... 4: | |
465 | index = 1; | |
466 | case 0: | |
467 | break; | |
468 | } | |
469 | ||
470 | map[index]++; | |
471 | } | |
472 | ||
473 | void io_u_mark_submit(struct thread_data *td, unsigned int nr) | |
474 | { | |
475 | __io_u_mark_map(td->ts.io_u_submit, nr); | |
476 | td->ts.total_submit++; | |
477 | } | |
478 | ||
479 | void io_u_mark_complete(struct thread_data *td, unsigned int nr) | |
480 | { | |
481 | __io_u_mark_map(td->ts.io_u_complete, nr); | |
482 | td->ts.total_complete++; | |
483 | } | |
484 | ||
d8005759 | 485 | void io_u_mark_depth(struct thread_data *td, unsigned int nr) |
71619dc2 JA |
486 | { |
487 | int index = 0; | |
488 | ||
489 | switch (td->cur_depth) { | |
490 | default: | |
a783e61a JA |
491 | index = 6; |
492 | break; | |
71619dc2 | 493 | case 32 ... 63: |
a783e61a JA |
494 | index = 5; |
495 | break; | |
71619dc2 | 496 | case 16 ... 31: |
a783e61a JA |
497 | index = 4; |
498 | break; | |
71619dc2 | 499 | case 8 ... 15: |
a783e61a JA |
500 | index = 3; |
501 | break; | |
71619dc2 | 502 | case 4 ... 7: |
a783e61a JA |
503 | index = 2; |
504 | break; | |
71619dc2 | 505 | case 2 ... 3: |
a783e61a | 506 | index = 1; |
71619dc2 JA |
507 | case 1: |
508 | break; | |
509 | } | |
510 | ||
3bec7ae0 | 511 | td->ts.io_u_map[index] += nr; |
71619dc2 JA |
512 | } |
513 | ||
04a0feae JA |
514 | static void io_u_mark_lat_usec(struct thread_data *td, unsigned long usec) |
515 | { | |
516 | int index = 0; | |
517 | ||
518 | assert(usec < 1000); | |
519 | ||
520 | switch (usec) { | |
521 | case 750 ... 999: | |
522 | index = 9; | |
523 | break; | |
524 | case 500 ... 749: | |
525 | index = 8; | |
526 | break; | |
527 | case 250 ... 499: | |
528 | index = 7; | |
529 | break; | |
530 | case 100 ... 249: | |
531 | index = 6; | |
532 | break; | |
533 | case 50 ... 99: | |
534 | index = 5; | |
535 | break; | |
536 | case 20 ... 49: | |
537 | index = 4; | |
538 | break; | |
539 | case 10 ... 19: | |
540 | index = 3; | |
541 | break; | |
542 | case 4 ... 9: | |
543 | index = 2; | |
544 | break; | |
545 | case 2 ... 3: | |
546 | index = 1; | |
547 | case 0 ... 1: | |
548 | break; | |
549 | } | |
550 | ||
551 | assert(index < FIO_IO_U_LAT_U_NR); | |
552 | td->ts.io_u_lat_u[index]++; | |
553 | } | |
554 | ||
555 | static void io_u_mark_lat_msec(struct thread_data *td, unsigned long msec) | |
ec118304 JA |
556 | { |
557 | int index = 0; | |
558 | ||
559 | switch (msec) { | |
560 | default: | |
04a0feae JA |
561 | index = 11; |
562 | break; | |
8abdce66 | 563 | case 1000 ... 1999: |
04a0feae JA |
564 | index = 10; |
565 | break; | |
8abdce66 | 566 | case 750 ... 999: |
04a0feae JA |
567 | index = 9; |
568 | break; | |
8abdce66 | 569 | case 500 ... 749: |
04a0feae JA |
570 | index = 8; |
571 | break; | |
8abdce66 | 572 | case 250 ... 499: |
04a0feae JA |
573 | index = 7; |
574 | break; | |
8abdce66 | 575 | case 100 ... 249: |
04a0feae JA |
576 | index = 6; |
577 | break; | |
8abdce66 | 578 | case 50 ... 99: |
04a0feae JA |
579 | index = 5; |
580 | break; | |
8abdce66 | 581 | case 20 ... 49: |
04a0feae JA |
582 | index = 4; |
583 | break; | |
8abdce66 | 584 | case 10 ... 19: |
04a0feae JA |
585 | index = 3; |
586 | break; | |
8abdce66 | 587 | case 4 ... 9: |
04a0feae JA |
588 | index = 2; |
589 | break; | |
ec118304 | 590 | case 2 ... 3: |
04a0feae | 591 | index = 1; |
ec118304 JA |
592 | case 0 ... 1: |
593 | break; | |
594 | } | |
595 | ||
04a0feae JA |
596 | assert(index < FIO_IO_U_LAT_M_NR); |
597 | td->ts.io_u_lat_m[index]++; | |
598 | } | |
599 | ||
600 | static void io_u_mark_latency(struct thread_data *td, unsigned long usec) | |
601 | { | |
602 | if (usec < 1000) | |
603 | io_u_mark_lat_usec(td, usec); | |
604 | else | |
605 | io_u_mark_lat_msec(td, usec / 1000); | |
ec118304 JA |
606 | } |
607 | ||
0aabe160 JA |
608 | /* |
609 | * Get next file to service by choosing one at random | |
610 | */ | |
1c178180 JA |
611 | static struct fio_file *get_next_file_rand(struct thread_data *td, int goodf, |
612 | int badf) | |
0aabe160 | 613 | { |
0aabe160 | 614 | struct fio_file *f; |
1c178180 | 615 | int fno; |
0aabe160 JA |
616 | |
617 | do { | |
7c83c089 JA |
618 | long r = os_random_long(&td->next_file_state); |
619 | ||
5ec10eaa JA |
620 | fno = (unsigned int) ((double) td->o.nr_files |
621 | * (r / (RAND_MAX + 1.0))); | |
126d65c6 | 622 | f = td->files[fno]; |
059e63c0 JA |
623 | if (f->flags & FIO_FILE_DONE) |
624 | continue; | |
1c178180 | 625 | |
2ba1c290 JA |
626 | if ((!goodf || (f->flags & goodf)) && !(f->flags & badf)) { |
627 | dprint(FD_FILE, "get_next_file_rand: %p\n", f); | |
0aabe160 | 628 | return f; |
2ba1c290 | 629 | } |
0aabe160 JA |
630 | } while (1); |
631 | } | |
632 | ||
633 | /* | |
634 | * Get next file to service by doing round robin between all available ones | |
635 | */ | |
1c178180 JA |
636 | static struct fio_file *get_next_file_rr(struct thread_data *td, int goodf, |
637 | int badf) | |
3d7c391d JA |
638 | { |
639 | unsigned int old_next_file = td->next_file; | |
640 | struct fio_file *f; | |
641 | ||
642 | do { | |
126d65c6 | 643 | f = td->files[td->next_file]; |
3d7c391d JA |
644 | |
645 | td->next_file++; | |
2dc1bbeb | 646 | if (td->next_file >= td->o.nr_files) |
3d7c391d JA |
647 | td->next_file = 0; |
648 | ||
d5ed68ea JA |
649 | if (f->flags & FIO_FILE_DONE) { |
650 | f = NULL; | |
059e63c0 | 651 | continue; |
d5ed68ea | 652 | } |
059e63c0 | 653 | |
1c178180 | 654 | if ((!goodf || (f->flags & goodf)) && !(f->flags & badf)) |
3d7c391d JA |
655 | break; |
656 | ||
657 | f = NULL; | |
658 | } while (td->next_file != old_next_file); | |
659 | ||
2ba1c290 | 660 | dprint(FD_FILE, "get_next_file_rr: %p\n", f); |
3d7c391d JA |
661 | return f; |
662 | } | |
663 | ||
bdb4e2e9 JA |
664 | static struct fio_file *get_next_file(struct thread_data *td) |
665 | { | |
1907dbc6 JA |
666 | struct fio_file *f; |
667 | ||
2dc1bbeb | 668 | assert(td->o.nr_files <= td->files_index); |
1c178180 | 669 | |
2ba1c290 | 670 | if (!td->nr_open_files || td->nr_done_files >= td->o.nr_files) { |
5ec10eaa JA |
671 | dprint(FD_FILE, "get_next_file: nr_open=%d, nr_done=%d," |
672 | " nr_files=%d\n", td->nr_open_files, | |
673 | td->nr_done_files, | |
674 | td->o.nr_files); | |
bdb4e2e9 | 675 | return NULL; |
2ba1c290 | 676 | } |
bdb4e2e9 | 677 | |
1907dbc6 | 678 | f = td->file_service_file; |
f11bd94d | 679 | if (f && (f->flags & FIO_FILE_OPEN) && td->file_service_left--) |
2ba1c290 | 680 | goto out; |
1907dbc6 | 681 | |
2dc1bbeb | 682 | if (td->o.file_service_type == FIO_FSERVICE_RR) |
1c178180 | 683 | f = get_next_file_rr(td, FIO_FILE_OPEN, FIO_FILE_CLOSING); |
bdb4e2e9 | 684 | else |
1c178180 | 685 | f = get_next_file_rand(td, FIO_FILE_OPEN, FIO_FILE_CLOSING); |
1907dbc6 JA |
686 | |
687 | td->file_service_file = f; | |
688 | td->file_service_left = td->file_service_nr - 1; | |
2ba1c290 JA |
689 | out: |
690 | dprint(FD_FILE, "get_next_file: %p\n", f); | |
1907dbc6 | 691 | return f; |
bdb4e2e9 JA |
692 | } |
693 | ||
1c178180 JA |
694 | static struct fio_file *find_next_new_file(struct thread_data *td) |
695 | { | |
696 | struct fio_file *f; | |
697 | ||
1020a139 JA |
698 | if (!td->nr_open_files || td->nr_done_files >= td->o.nr_files) |
699 | return NULL; | |
700 | ||
2dc1bbeb | 701 | if (td->o.file_service_type == FIO_FSERVICE_RR) |
1c178180 JA |
702 | f = get_next_file_rr(td, 0, FIO_FILE_OPEN); |
703 | else | |
704 | f = get_next_file_rand(td, 0, FIO_FILE_OPEN); | |
705 | ||
706 | return f; | |
707 | } | |
708 | ||
429f6675 JA |
709 | static int set_io_u_file(struct thread_data *td, struct io_u *io_u) |
710 | { | |
711 | struct fio_file *f; | |
712 | ||
713 | do { | |
714 | f = get_next_file(td); | |
715 | if (!f) | |
716 | return 1; | |
717 | ||
718 | set_file: | |
719 | io_u->file = f; | |
720 | get_file(f); | |
721 | ||
722 | if (!fill_io_u(td, io_u)) | |
723 | break; | |
724 | ||
009bd847 JA |
725 | /* |
726 | * optimization to prevent close/open of the same file. This | |
727 | * way we preserve queueing etc. | |
728 | */ | |
729 | if (td->o.nr_files == 1 && td->o.time_based) { | |
60f2c658 | 730 | put_file_log(td, f); |
009bd847 JA |
731 | fio_file_reset(f); |
732 | goto set_file; | |
733 | } | |
734 | ||
429f6675 JA |
735 | /* |
736 | * td_io_close() does a put_file() as well, so no need to | |
737 | * do that here. | |
738 | */ | |
739 | io_u->file = NULL; | |
740 | td_io_close_file(td, f); | |
741 | f->flags |= FIO_FILE_DONE; | |
742 | td->nr_done_files++; | |
743 | ||
744 | /* | |
745 | * probably not the right place to do this, but see | |
746 | * if we need to open a new file | |
747 | */ | |
748 | if (td->nr_open_files < td->o.open_files && | |
749 | td->o.open_files != td->o.nr_files) { | |
750 | f = find_next_new_file(td); | |
751 | ||
752 | if (!f || td_io_open_file(td, f)) | |
753 | return 1; | |
754 | ||
755 | goto set_file; | |
756 | } | |
757 | } while (1); | |
758 | ||
759 | return 0; | |
760 | } | |
761 | ||
762 | ||
10ba535a JA |
763 | struct io_u *__get_io_u(struct thread_data *td) |
764 | { | |
765 | struct io_u *io_u = NULL; | |
766 | ||
01743ee1 JA |
767 | if (!flist_empty(&td->io_u_requeues)) |
768 | io_u = flist_entry(td->io_u_requeues.next, struct io_u, list); | |
755200a3 | 769 | else if (!queue_full(td)) { |
01743ee1 | 770 | io_u = flist_entry(td->io_u_freelist.next, struct io_u, list); |
10ba535a | 771 | |
6040dabc | 772 | io_u->buflen = 0; |
10ba535a | 773 | io_u->resid = 0; |
755200a3 | 774 | io_u->file = NULL; |
d7762cf8 | 775 | io_u->end_io = NULL; |
755200a3 JA |
776 | } |
777 | ||
778 | if (io_u) { | |
0c6e7517 JA |
779 | assert(io_u->flags & IO_U_F_FREE); |
780 | io_u->flags &= ~IO_U_F_FREE; | |
781 | ||
755200a3 | 782 | io_u->error = 0; |
01743ee1 JA |
783 | flist_del(&io_u->list); |
784 | flist_add(&io_u->list, &td->io_u_busylist); | |
10ba535a JA |
785 | td->cur_depth++; |
786 | } | |
787 | ||
788 | return io_u; | |
789 | } | |
790 | ||
791 | /* | |
792 | * Return an io_u to be processed. Gets a buflen and offset, sets direction, | |
793 | * etc. The returned io_u is fully ready to be prepped and submitted. | |
794 | */ | |
3d7c391d | 795 | struct io_u *get_io_u(struct thread_data *td) |
10ba535a | 796 | { |
3d7c391d | 797 | struct fio_file *f; |
10ba535a JA |
798 | struct io_u *io_u; |
799 | ||
800 | io_u = __get_io_u(td); | |
2ba1c290 JA |
801 | if (!io_u) { |
802 | dprint(FD_IO, "__get_io_u failed\n"); | |
10ba535a | 803 | return NULL; |
2ba1c290 | 804 | } |
10ba535a | 805 | |
755200a3 JA |
806 | /* |
807 | * from a requeue, io_u already setup | |
808 | */ | |
809 | if (io_u->file) | |
77f392bf | 810 | goto out; |
755200a3 | 811 | |
429f6675 JA |
812 | /* |
813 | * If using an iolog, grab next piece if any available. | |
814 | */ | |
815 | if (td->o.read_iolog_file) { | |
816 | if (read_iolog_get(td, io_u)) | |
817 | goto err_put; | |
2ba1c290 JA |
818 | } else if (set_io_u_file(td, io_u)) { |
819 | dprint(FD_IO, "io_u %p, setting file failed\n", io_u); | |
429f6675 | 820 | goto err_put; |
2ba1c290 | 821 | } |
5ec10eaa | 822 | |
429f6675 JA |
823 | f = io_u->file; |
824 | assert(f->flags & FIO_FILE_OPEN); | |
97af62ce | 825 | |
87dc1ab1 | 826 | if (io_u->ddir != DDIR_SYNC) { |
d0656a93 | 827 | if (!io_u->buflen && !(td->io_ops->flags & FIO_NOIO)) { |
2ba1c290 | 828 | dprint(FD_IO, "get_io_u: zero buflen on %p\n", io_u); |
429f6675 | 829 | goto err_put; |
2ba1c290 | 830 | } |
10ba535a | 831 | |
36167d82 | 832 | f->last_pos = io_u->offset + io_u->buflen; |
10ba535a | 833 | |
2dc1bbeb | 834 | if (td->o.verify != VERIFY_NONE) |
87dc1ab1 | 835 | populate_verify_io_u(td, io_u); |
e4dad9c6 JA |
836 | else if (td->o.refill_buffers && io_u->ddir == DDIR_WRITE) |
837 | io_u_fill_buffer(td, io_u, io_u->xfer_buflen); | |
87dc1ab1 | 838 | } |
10ba535a | 839 | |
165faf16 JA |
840 | /* |
841 | * Set io data pointers. | |
842 | */ | |
d460eb31 | 843 | io_u->endpos = io_u->offset + io_u->buflen; |
cec6b55d JA |
844 | io_u->xfer_buf = io_u->buf; |
845 | io_u->xfer_buflen = io_u->buflen; | |
5973cafb | 846 | |
6ac7a331 | 847 | out: |
429f6675 JA |
848 | if (!td_io_prep(td, io_u)) { |
849 | fio_gettime(&io_u->start_time, NULL); | |
850 | return io_u; | |
36167d82 | 851 | } |
429f6675 | 852 | err_put: |
2ba1c290 | 853 | dprint(FD_IO, "get_io_u failed\n"); |
429f6675 JA |
854 | put_io_u(td, io_u); |
855 | return NULL; | |
10ba535a JA |
856 | } |
857 | ||
5451792e JA |
858 | void io_u_log_error(struct thread_data *td, struct io_u *io_u) |
859 | { | |
860 | const char *msg[] = { "read", "write", "sync" }; | |
861 | ||
862 | log_err("fio: io_u error"); | |
863 | ||
864 | if (io_u->file) | |
865 | log_err(" on file %s", io_u->file->file_name); | |
866 | ||
867 | log_err(": %s\n", strerror(io_u->error)); | |
868 | ||
5ec10eaa JA |
869 | log_err(" %s offset=%llu, buflen=%lu\n", msg[io_u->ddir], |
870 | io_u->offset, io_u->xfer_buflen); | |
5451792e JA |
871 | |
872 | if (!td->error) | |
873 | td_verror(td, io_u->error, "io_u error"); | |
874 | } | |
875 | ||
97601024 JA |
876 | static void io_completed(struct thread_data *td, struct io_u *io_u, |
877 | struct io_completion_data *icd) | |
10ba535a | 878 | { |
d85f5118 | 879 | unsigned long usec; |
10ba535a | 880 | |
2ba1c290 JA |
881 | dprint_io_u(io_u, "io complete"); |
882 | ||
0c6e7517 JA |
883 | assert(io_u->flags & IO_U_F_FLIGHT); |
884 | io_u->flags &= ~IO_U_F_FLIGHT; | |
885 | ||
87dc1ab1 JA |
886 | if (io_u->ddir == DDIR_SYNC) { |
887 | td->last_was_sync = 1; | |
888 | return; | |
889 | } | |
890 | ||
891 | td->last_was_sync = 0; | |
892 | ||
10ba535a JA |
893 | if (!io_u->error) { |
894 | unsigned int bytes = io_u->buflen - io_u->resid; | |
1e97cce9 | 895 | const enum fio_ddir idx = io_u->ddir; |
3af6ef39 | 896 | int ret; |
10ba535a JA |
897 | |
898 | td->io_blocks[idx]++; | |
899 | td->io_bytes[idx] += bytes; | |
10ba535a JA |
900 | td->this_io_bytes[idx] += bytes; |
901 | ||
d85f5118 | 902 | usec = utime_since(&io_u->issue_time, &icd->time); |
10ba535a | 903 | |
d85f5118 | 904 | add_clat_sample(td, idx, usec); |
02bcaa8c | 905 | add_bw_sample(td, idx, &icd->time); |
04a0feae | 906 | io_u_mark_latency(td, usec); |
10ba535a | 907 | |
660a1cb5 | 908 | if (td_write(td) && idx == DDIR_WRITE && |
8670579e | 909 | td->o.do_verify && |
41128405 | 910 | td->o.verify != VERIFY_NONE) |
10ba535a JA |
911 | log_io_piece(td, io_u); |
912 | ||
913 | icd->bytes_done[idx] += bytes; | |
3af6ef39 | 914 | |
d7762cf8 | 915 | if (io_u->end_io) { |
36690c9b | 916 | ret = io_u->end_io(td, io_u); |
3af6ef39 JA |
917 | if (ret && !icd->error) |
918 | icd->error = ret; | |
919 | } | |
5451792e | 920 | } else { |
10ba535a | 921 | icd->error = io_u->error; |
5451792e JA |
922 | io_u_log_error(td, io_u); |
923 | } | |
10ba535a JA |
924 | } |
925 | ||
d7762cf8 | 926 | static void init_icd(struct io_completion_data *icd, int nr) |
10ba535a | 927 | { |
02bcaa8c JA |
928 | fio_gettime(&icd->time, NULL); |
929 | ||
3af6ef39 JA |
930 | icd->nr = nr; |
931 | ||
10ba535a JA |
932 | icd->error = 0; |
933 | icd->bytes_done[0] = icd->bytes_done[1] = 0; | |
36167d82 JA |
934 | } |
935 | ||
97601024 JA |
936 | static void ios_completed(struct thread_data *td, |
937 | struct io_completion_data *icd) | |
36167d82 JA |
938 | { |
939 | struct io_u *io_u; | |
940 | int i; | |
941 | ||
10ba535a JA |
942 | for (i = 0; i < icd->nr; i++) { |
943 | io_u = td->io_ops->event(td, i); | |
944 | ||
945 | io_completed(td, io_u, icd); | |
946 | put_io_u(td, io_u); | |
947 | } | |
948 | } | |
97601024 | 949 | |
e7e6cfb4 JA |
950 | /* |
951 | * Complete a single io_u for the sync engines. | |
952 | */ | |
d7762cf8 | 953 | long io_u_sync_complete(struct thread_data *td, struct io_u *io_u) |
97601024 JA |
954 | { |
955 | struct io_completion_data icd; | |
956 | ||
d7762cf8 | 957 | init_icd(&icd, 1); |
97601024 JA |
958 | io_completed(td, io_u, &icd); |
959 | put_io_u(td, io_u); | |
960 | ||
961 | if (!icd.error) | |
962 | return icd.bytes_done[0] + icd.bytes_done[1]; | |
963 | ||
37e974a5 | 964 | td_verror(td, icd.error, "io_u_sync_complete"); |
97601024 JA |
965 | return -1; |
966 | } | |
967 | ||
e7e6cfb4 JA |
968 | /* |
969 | * Called to complete min_events number of io for the async engines. | |
970 | */ | |
d7762cf8 | 971 | long io_u_queued_complete(struct thread_data *td, int min_events) |
97601024 | 972 | { |
97601024 | 973 | struct io_completion_data icd; |
00de55ef | 974 | struct timespec *tvp = NULL; |
97601024 | 975 | int ret; |
4d06a338 | 976 | struct timespec ts = { .tv_sec = 0, .tv_nsec = 0, }; |
97601024 | 977 | |
b271fe62 JA |
978 | dprint(FD_IO, "io_u_queued_completed: min=%d\n", min_events); |
979 | ||
4d06a338 | 980 | if (!min_events) |
00de55ef | 981 | tvp = &ts; |
97601024 | 982 | |
00de55ef | 983 | ret = td_io_getevents(td, min_events, td->cur_depth, tvp); |
97601024 | 984 | if (ret < 0) { |
e1161c32 | 985 | td_verror(td, -ret, "td_io_getevents"); |
97601024 JA |
986 | return ret; |
987 | } else if (!ret) | |
988 | return ret; | |
989 | ||
d7762cf8 | 990 | init_icd(&icd, ret); |
97601024 JA |
991 | ios_completed(td, &icd); |
992 | if (!icd.error) | |
993 | return icd.bytes_done[0] + icd.bytes_done[1]; | |
994 | ||
37e974a5 | 995 | td_verror(td, icd.error, "io_u_queued_complete"); |
97601024 JA |
996 | return -1; |
997 | } | |
7e77dd02 JA |
998 | |
999 | /* | |
1000 | * Call when io_u is really queued, to update the submission latency. | |
1001 | */ | |
1002 | void io_u_queued(struct thread_data *td, struct io_u *io_u) | |
1003 | { | |
1004 | unsigned long slat_time; | |
1005 | ||
d85f5118 | 1006 | slat_time = utime_since(&io_u->start_time, &io_u->issue_time); |
7e77dd02 JA |
1007 | add_slat_sample(td, io_u->ddir, slat_time); |
1008 | } | |
433afcb4 | 1009 | |
5973cafb JA |
1010 | /* |
1011 | * "randomly" fill the buffer contents | |
1012 | */ | |
1013 | void io_u_fill_buffer(struct thread_data *td, struct io_u *io_u, | |
1014 | unsigned int max_bs) | |
1015 | { | |
1016 | long *ptr = io_u->buf; | |
1017 | ||
1018 | if (!td->o.zero_buffers) { | |
1019 | while ((void *) ptr - io_u->buf < max_bs) { | |
1020 | *ptr = rand() * GOLDEN_RATIO_PRIME; | |
1021 | ptr++; | |
1022 | } | |
1023 | } else | |
1024 | memset(ptr, 0, max_bs); | |
1025 | } | |
1026 | ||
55bc9728 | 1027 | #ifdef FIO_USE_TIMEOUT |
433afcb4 JA |
1028 | void io_u_set_timeout(struct thread_data *td) |
1029 | { | |
1030 | assert(td->cur_depth); | |
1031 | ||
1032 | td->timer.it_interval.tv_sec = 0; | |
1033 | td->timer.it_interval.tv_usec = 0; | |
1034 | td->timer.it_value.tv_sec = IO_U_TIMEOUT + IO_U_TIMEOUT_INC; | |
1035 | td->timer.it_value.tv_usec = 0; | |
1036 | setitimer(ITIMER_REAL, &td->timer, NULL); | |
1037 | fio_gettime(&td->timeout_end, NULL); | |
1038 | } | |
5945b9b4 JA |
1039 | |
1040 | static void io_u_dump(struct io_u *io_u) | |
1041 | { | |
1042 | unsigned long t_start = mtime_since_now(&io_u->start_time); | |
1043 | unsigned long t_issue = mtime_since_now(&io_u->issue_time); | |
1044 | ||
1045 | log_err("io_u=%p, t_start=%lu, t_issue=%lu\n", io_u, t_start, t_issue); | |
5ec10eaa JA |
1046 | log_err(" buf=%p/%p, len=%lu/%lu, offset=%llu\n", io_u->buf, |
1047 | io_u->xfer_buf, io_u->buflen, | |
1048 | io_u->xfer_buflen, | |
1049 | io_u->offset); | |
5945b9b4 JA |
1050 | log_err(" ddir=%d, fname=%s\n", io_u->ddir, io_u->file->file_name); |
1051 | } | |
55bc9728 JA |
1052 | #else |
1053 | void io_u_set_timeout(struct thread_data fio_unused *td) | |
1054 | { | |
1055 | } | |
1056 | #endif | |
433afcb4 | 1057 | |
55bc9728 | 1058 | #ifdef FIO_USE_TIMEOUT |
433afcb4 JA |
1059 | static void io_u_timeout_handler(int fio_unused sig) |
1060 | { | |
1061 | struct thread_data *td, *__td; | |
1062 | pid_t pid = getpid(); | |
01743ee1 | 1063 | struct flist_head *entry; |
5945b9b4 | 1064 | struct io_u *io_u; |
433afcb4 JA |
1065 | int i; |
1066 | ||
1067 | log_err("fio: io_u timeout\n"); | |
1068 | ||
1069 | /* | |
1070 | * TLS would be nice... | |
1071 | */ | |
1072 | td = NULL; | |
1073 | for_each_td(__td, i) { | |
1074 | if (__td->pid == pid) { | |
1075 | td = __td; | |
1076 | break; | |
1077 | } | |
1078 | } | |
1079 | ||
1080 | if (!td) { | |
1081 | log_err("fio: io_u timeout, can't find job\n"); | |
1082 | exit(1); | |
1083 | } | |
1084 | ||
1085 | if (!td->cur_depth) { | |
1086 | log_err("fio: timeout without pending work?\n"); | |
1087 | return; | |
1088 | } | |
1089 | ||
15506d09 | 1090 | log_err("fio: io_u timeout: job=%s, pid=%d\n", td->o.name, td->pid); |
5945b9b4 | 1091 | |
01743ee1 JA |
1092 | flist_for_each(entry, &td->io_u_busylist) { |
1093 | io_u = flist_entry(entry, struct io_u, list); | |
5945b9b4 JA |
1094 | |
1095 | io_u_dump(io_u); | |
1096 | } | |
1097 | ||
1098 | td_verror(td, ETIMEDOUT, "io_u timeout"); | |
433afcb4 JA |
1099 | exit(1); |
1100 | } | |
55bc9728 | 1101 | #endif |
433afcb4 JA |
1102 | |
1103 | void io_u_init_timeout(void) | |
1104 | { | |
55bc9728 | 1105 | #ifdef FIO_USE_TIMEOUT |
433afcb4 | 1106 | signal(SIGALRM, io_u_timeout_handler); |
55bc9728 | 1107 | #endif |
433afcb4 | 1108 | } |