Commit | Line | Data |
---|---|---|
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" |
4f5af7b2 | 10 | #include "verify.h" |
0d29de83 | 11 | #include "trim.h" |
1fbbf72e | 12 | #include "lib/rand.h" |
10ba535a | 13 | |
97601024 JA |
14 | struct io_completion_data { |
15 | int nr; /* input */ | |
97601024 JA |
16 | |
17 | int error; /* output */ | |
18 | unsigned long bytes_done[2]; /* output */ | |
19 | struct timeval time; /* output */ | |
20 | }; | |
21 | ||
10ba535a JA |
22 | /* |
23 | * The ->file_map[] contains a map of blocks we have or have not done io | |
24 | * to yet. Used to make sure we cover the entire range in a fair fashion. | |
25 | */ | |
aec2de20 | 26 | static int random_map_free(struct fio_file *f, const unsigned long long block) |
10ba535a | 27 | { |
aec2de20 JA |
28 | unsigned int idx = RAND_MAP_IDX(f, block); |
29 | unsigned int bit = RAND_MAP_BIT(f, block); | |
10ba535a | 30 | |
84422acd JA |
31 | dprint(FD_RANDOM, "free: b=%llu, idx=%u, bit=%u\n", block, idx, bit); |
32 | ||
0ce8b119 | 33 | return (f->file_map[idx] & (1UL << bit)) == 0; |
10ba535a JA |
34 | } |
35 | ||
df415585 JA |
36 | /* |
37 | * Mark a given offset as used in the map. | |
38 | */ | |
9bf2061e | 39 | static void mark_random_map(struct thread_data *td, struct io_u *io_u) |
df415585 | 40 | { |
2dc1bbeb | 41 | unsigned int min_bs = td->o.rw_min_bs; |
9bf2061e | 42 | struct fio_file *f = io_u->file; |
a00735e6 | 43 | unsigned long long block; |
3e3357b1 | 44 | unsigned int blocks, nr_blocks; |
38dad62d | 45 | int busy_check; |
df415585 | 46 | |
b9c5b644 | 47 | block = (io_u->offset - f->file_offset) / (unsigned long long) min_bs; |
c685b5b2 | 48 | nr_blocks = (io_u->buflen + min_bs - 1) / min_bs; |
3e3357b1 | 49 | blocks = 0; |
38dad62d | 50 | busy_check = !(io_u->flags & IO_U_F_BUSY_OK); |
c685b5b2 | 51 | |
3e3357b1 | 52 | while (nr_blocks) { |
df415585 | 53 | unsigned int idx, bit; |
0ce8b119 | 54 | unsigned long mask, this_blocks; |
df415585 | 55 | |
1e3d53ac JA |
56 | /* |
57 | * If we have a mixed random workload, we may | |
58 | * encounter blocks we already did IO to. | |
59 | */ | |
38dad62d JA |
60 | if (!busy_check) { |
61 | blocks = nr_blocks; | |
62 | break; | |
63 | } | |
5736c10d | 64 | if ((td->o.ddir_seq_nr == 1) && !random_map_free(f, block)) |
df415585 JA |
65 | break; |
66 | ||
aec2de20 JA |
67 | idx = RAND_MAP_IDX(f, block); |
68 | bit = RAND_MAP_BIT(f, block); | |
df415585 | 69 | |
0032bf9f | 70 | fio_assert(td, idx < f->num_maps); |
df415585 | 71 | |
3e3357b1 JA |
72 | this_blocks = nr_blocks; |
73 | if (this_blocks + bit > BLOCKS_PER_MAP) | |
74 | this_blocks = BLOCKS_PER_MAP - bit; | |
75 | ||
da3758bf JA |
76 | do { |
77 | if (this_blocks == BLOCKS_PER_MAP) | |
0ce8b119 | 78 | mask = -1UL; |
da3758bf | 79 | else |
0ce8b119 | 80 | mask = ((1UL << this_blocks) - 1) << bit; |
da3758bf JA |
81 | |
82 | if (!(f->file_map[idx] & mask)) | |
83 | break; | |
84 | ||
85 | this_blocks--; | |
86 | } while (this_blocks); | |
87 | ||
88 | if (!this_blocks) | |
89 | break; | |
3e3357b1 | 90 | |
3e3357b1 JA |
91 | f->file_map[idx] |= mask; |
92 | nr_blocks -= this_blocks; | |
93 | blocks += this_blocks; | |
c9dd34b2 | 94 | block += this_blocks; |
df415585 JA |
95 | } |
96 | ||
a00735e6 JA |
97 | if ((blocks * min_bs) < io_u->buflen) |
98 | io_u->buflen = blocks * min_bs; | |
df415585 JA |
99 | } |
100 | ||
3e3357b1 JA |
101 | static unsigned long long last_block(struct thread_data *td, struct fio_file *f, |
102 | enum fio_ddir ddir) | |
2ba1c290 JA |
103 | { |
104 | unsigned long long max_blocks; | |
d9dd70f7 | 105 | unsigned long long max_size; |
2ba1c290 | 106 | |
ff58fced JA |
107 | assert(ddir_rw(ddir)); |
108 | ||
d9dd70f7 JA |
109 | /* |
110 | * Hmm, should we make sure that ->io_size <= ->real_file_size? | |
111 | */ | |
112 | max_size = f->io_size; | |
113 | if (max_size > f->real_file_size) | |
114 | max_size = f->real_file_size; | |
115 | ||
2b7a01d0 | 116 | max_blocks = max_size / (unsigned long long) td->o.ba[ddir]; |
2ba1c290 JA |
117 | if (!max_blocks) |
118 | return 0; | |
119 | ||
67778e88 | 120 | return max_blocks; |
2ba1c290 JA |
121 | } |
122 | ||
10ba535a JA |
123 | /* |
124 | * Return the next free block in the map. | |
125 | */ | |
126 | static int get_next_free_block(struct thread_data *td, struct fio_file *f, | |
4ba66134 | 127 | enum fio_ddir ddir, unsigned long long *b) |
10ba535a | 128 | { |
0ce8b119 | 129 | unsigned long long block, min_bs = td->o.rw_min_bs, lastb; |
10ba535a JA |
130 | int i; |
131 | ||
5e0baa7f JA |
132 | lastb = last_block(td, f, ddir); |
133 | if (!lastb) | |
134 | return 1; | |
135 | ||
c685b5b2 | 136 | i = f->last_free_lookup; |
0ce8b119 JA |
137 | block = i * BLOCKS_PER_MAP; |
138 | while (block * min_bs < f->real_file_size && | |
139 | block * min_bs < f->io_size) { | |
140 | if (f->file_map[i] != -1UL) { | |
141 | block += ffz(f->file_map[i]); | |
142 | if (block > lastb) | |
2ba1c290 | 143 | break; |
c685b5b2 | 144 | f->last_free_lookup = i; |
0ce8b119 | 145 | *b = block; |
10ba535a JA |
146 | return 0; |
147 | } | |
148 | ||
0ce8b119 | 149 | block += BLOCKS_PER_MAP; |
10ba535a JA |
150 | i++; |
151 | } | |
152 | ||
2ba1c290 | 153 | dprint(FD_IO, "failed finding a free block\n"); |
10ba535a JA |
154 | return 1; |
155 | } | |
156 | ||
ec4015da | 157 | static int get_next_rand_offset(struct thread_data *td, struct fio_file *f, |
4ba66134 | 158 | enum fio_ddir ddir, unsigned long long *b) |
ec4015da | 159 | { |
5e0baa7f | 160 | unsigned long long r, lastb; |
ec4015da JA |
161 | int loops = 5; |
162 | ||
5e0baa7f JA |
163 | lastb = last_block(td, f, ddir); |
164 | if (!lastb) | |
165 | return 1; | |
166 | ||
0ce8b119 JA |
167 | if (f->failed_rands >= 200) |
168 | goto ffz; | |
169 | ||
ec4015da JA |
170 | do { |
171 | r = os_random_long(&td->random_state); | |
84422acd | 172 | dprint(FD_RANDOM, "off rand %llu\n", r); |
5e0baa7f | 173 | *b = (lastb - 1) * (r / ((unsigned long long) OS_RAND_MAX + 1.0)); |
2ba1c290 | 174 | |
43c63a78 JA |
175 | /* |
176 | * if we are not maintaining a random map, we are done. | |
177 | */ | |
303032ae | 178 | if (!file_randommap(td, f)) |
0ce8b119 | 179 | goto ret_good; |
43c63a78 JA |
180 | |
181 | /* | |
84422acd | 182 | * calculate map offset and check if it's free |
43c63a78 | 183 | */ |
aec2de20 | 184 | if (random_map_free(f, *b)) |
0ce8b119 | 185 | goto ret_good; |
43c63a78 | 186 | |
84422acd JA |
187 | dprint(FD_RANDOM, "get_next_rand_offset: offset %llu busy\n", |
188 | *b); | |
43c63a78 | 189 | } while (--loops); |
ec4015da | 190 | |
0ce8b119 JA |
191 | if (!f->failed_rands++) |
192 | f->last_free_lookup = 0; | |
193 | ||
ec4015da | 194 | /* |
43c63a78 JA |
195 | * we get here, if we didn't suceed in looking up a block. generate |
196 | * a random start offset into the filemap, and find the first free | |
197 | * block from there. | |
ec4015da | 198 | */ |
43c63a78 JA |
199 | loops = 10; |
200 | do { | |
dc873b6f JA |
201 | f->last_free_lookup = (f->num_maps - 1) * |
202 | (r / (OS_RAND_MAX + 1.0)); | |
4ba66134 | 203 | if (!get_next_free_block(td, f, ddir, b)) |
0ce8b119 | 204 | goto ret; |
ec4015da | 205 | |
43c63a78 JA |
206 | r = os_random_long(&td->random_state); |
207 | } while (--loops); | |
208 | ||
209 | /* | |
210 | * that didn't work either, try exhaustive search from the start | |
211 | */ | |
212 | f->last_free_lookup = 0; | |
0ce8b119 JA |
213 | ffz: |
214 | if (!get_next_free_block(td, f, ddir, b)) | |
215 | return 0; | |
216 | f->last_free_lookup = 0; | |
4ba66134 | 217 | return get_next_free_block(td, f, ddir, b); |
0ce8b119 JA |
218 | ret_good: |
219 | f->failed_rands = 0; | |
220 | ret: | |
221 | return 0; | |
ec4015da JA |
222 | } |
223 | ||
38dad62d JA |
224 | static int get_next_rand_block(struct thread_data *td, struct fio_file *f, |
225 | enum fio_ddir ddir, unsigned long long *b) | |
226 | { | |
227 | if (get_next_rand_offset(td, f, ddir, b)) { | |
228 | dprint(FD_IO, "%s: rand offset failed, last=%llu, size=%llu\n", | |
229 | f->file_name, f->last_pos, f->real_file_size); | |
230 | return 1; | |
231 | } | |
232 | ||
233 | return 0; | |
234 | } | |
235 | ||
236 | static int get_next_seq_block(struct thread_data *td, struct fio_file *f, | |
237 | enum fio_ddir ddir, unsigned long long *b) | |
238 | { | |
ff58fced JA |
239 | assert(ddir_rw(ddir)); |
240 | ||
38dad62d JA |
241 | if (f->last_pos < f->real_file_size) { |
242 | *b = (f->last_pos - f->file_offset) / td->o.min_bs[ddir]; | |
243 | return 0; | |
244 | } | |
245 | ||
246 | return 1; | |
247 | } | |
248 | ||
249 | static int get_next_block(struct thread_data *td, struct io_u *io_u, | |
250 | enum fio_ddir ddir, int rw_seq, unsigned long long *b) | |
251 | { | |
252 | struct fio_file *f = io_u->file; | |
253 | int ret; | |
254 | ||
ff58fced JA |
255 | assert(ddir_rw(ddir)); |
256 | ||
38dad62d JA |
257 | if (rw_seq) { |
258 | if (td_random(td)) | |
259 | ret = get_next_rand_block(td, f, ddir, b); | |
260 | else | |
261 | ret = get_next_seq_block(td, f, ddir, b); | |
262 | } else { | |
263 | io_u->flags |= IO_U_F_BUSY_OK; | |
264 | ||
265 | if (td->o.rw_seq == RW_SEQ_SEQ) { | |
266 | ret = get_next_seq_block(td, f, ddir, b); | |
267 | if (ret) | |
268 | ret = get_next_rand_block(td, f, ddir, b); | |
269 | } else if (td->o.rw_seq == RW_SEQ_IDENT) { | |
270 | if (f->last_start != -1ULL) | |
0508320e DN |
271 | *b = (f->last_start - f->file_offset) |
272 | / td->o.min_bs[ddir]; | |
38dad62d JA |
273 | else |
274 | *b = 0; | |
275 | ret = 0; | |
276 | } else { | |
277 | log_err("fio: unknown rw_seq=%d\n", td->o.rw_seq); | |
278 | ret = 1; | |
279 | } | |
280 | } | |
281 | ||
282 | return ret; | |
283 | } | |
284 | ||
10ba535a JA |
285 | /* |
286 | * For random io, generate a random new block and see if it's used. Repeat | |
287 | * until we find a free one. For sequential io, just return the end of | |
288 | * the last io issued. | |
289 | */ | |
15dc1934 | 290 | static int __get_next_offset(struct thread_data *td, struct io_u *io_u) |
10ba535a | 291 | { |
9bf2061e | 292 | struct fio_file *f = io_u->file; |
ec4015da | 293 | unsigned long long b; |
4ba66134 | 294 | enum fio_ddir ddir = io_u->ddir; |
38dad62d | 295 | int rw_seq_hit = 0; |
10ba535a | 296 | |
ff58fced JA |
297 | assert(ddir_rw(ddir)); |
298 | ||
38dad62d JA |
299 | if (td->o.ddir_seq_nr && !--td->ddir_seq_nr) { |
300 | rw_seq_hit = 1; | |
5736c10d | 301 | td->ddir_seq_nr = td->o.ddir_seq_nr; |
38dad62d | 302 | } |
211097b2 | 303 | |
0508320e | 304 | if (get_next_block(td, io_u, ddir, rw_seq_hit, &b)) |
38dad62d | 305 | return 1; |
10ba535a | 306 | |
2b7a01d0 | 307 | io_u->offset = b * td->o.ba[ddir]; |
009bd847 JA |
308 | if (io_u->offset >= f->io_size) { |
309 | dprint(FD_IO, "get_next_offset: offset %llu >= io_size %llu\n", | |
310 | io_u->offset, f->io_size); | |
311 | return 1; | |
312 | } | |
313 | ||
314 | io_u->offset += f->file_offset; | |
2ba1c290 JA |
315 | if (io_u->offset >= f->real_file_size) { |
316 | dprint(FD_IO, "get_next_offset: offset %llu >= size %llu\n", | |
317 | io_u->offset, f->real_file_size); | |
10ba535a | 318 | return 1; |
2ba1c290 | 319 | } |
10ba535a JA |
320 | |
321 | return 0; | |
322 | } | |
323 | ||
15dc1934 JA |
324 | static int get_next_offset(struct thread_data *td, struct io_u *io_u) |
325 | { | |
7eb36574 JA |
326 | struct prof_io_ops *ops = &td->prof_io_ops; |
327 | ||
328 | if (ops->fill_io_u_off) | |
329 | return ops->fill_io_u_off(td, io_u); | |
15dc1934 JA |
330 | |
331 | return __get_next_offset(td, io_u); | |
332 | } | |
333 | ||
334 | static unsigned int __get_next_buflen(struct thread_data *td, struct io_u *io_u) | |
10ba535a | 335 | { |
bca4ed4d | 336 | const int ddir = io_u->ddir; |
f3f552b9 | 337 | unsigned int uninitialized_var(buflen); |
f3059de1 | 338 | unsigned int minbs, maxbs; |
10ba535a JA |
339 | long r; |
340 | ||
ff58fced JA |
341 | assert(ddir_rw(ddir)); |
342 | ||
f3059de1 JA |
343 | minbs = td->o.min_bs[ddir]; |
344 | maxbs = td->o.max_bs[ddir]; | |
345 | ||
346 | if (minbs == maxbs) | |
347 | buflen = minbs; | |
10ba535a JA |
348 | else { |
349 | r = os_random_long(&td->bsrange_state); | |
720e84ad | 350 | if (!td->o.bssplit_nr[ddir]) { |
f3059de1 JA |
351 | buflen = 1 + (unsigned int) ((double) maxbs * |
352 | (r / (OS_RAND_MAX + 1.0))); | |
353 | if (buflen < minbs) | |
354 | buflen = minbs; | |
5ec10eaa | 355 | } else { |
564ca972 JA |
356 | long perc = 0; |
357 | unsigned int i; | |
358 | ||
720e84ad JA |
359 | for (i = 0; i < td->o.bssplit_nr[ddir]; i++) { |
360 | struct bssplit *bsp = &td->o.bssplit[ddir][i]; | |
564ca972 JA |
361 | |
362 | buflen = bsp->bs; | |
363 | perc += bsp->perc; | |
f3059de1 | 364 | if (r <= ((OS_RAND_MAX / 100L) * perc)) |
564ca972 JA |
365 | break; |
366 | } | |
367 | } | |
f3059de1 JA |
368 | if (!td->o.bs_unaligned && is_power_of_2(minbs)) |
369 | buflen = (buflen + minbs - 1) & ~(minbs - 1); | |
10ba535a JA |
370 | } |
371 | ||
4ba66134 JA |
372 | if (io_u->offset + buflen > io_u->file->real_file_size) { |
373 | dprint(FD_IO, "lower buflen %u -> %u (ddir=%d)\n", buflen, | |
f3059de1 JA |
374 | minbs, ddir); |
375 | buflen = minbs; | |
4ba66134 | 376 | } |
6a5e6884 | 377 | |
10ba535a JA |
378 | return buflen; |
379 | } | |
380 | ||
15dc1934 JA |
381 | static unsigned int get_next_buflen(struct thread_data *td, struct io_u *io_u) |
382 | { | |
7eb36574 JA |
383 | struct prof_io_ops *ops = &td->prof_io_ops; |
384 | ||
385 | if (ops->fill_io_u_size) | |
386 | return ops->fill_io_u_size(td, io_u); | |
15dc1934 JA |
387 | |
388 | return __get_next_buflen(td, io_u); | |
389 | } | |
390 | ||
afe24a5a JA |
391 | static void set_rwmix_bytes(struct thread_data *td) |
392 | { | |
afe24a5a JA |
393 | unsigned int diff; |
394 | ||
395 | /* | |
396 | * we do time or byte based switch. this is needed because | |
397 | * buffered writes may issue a lot quicker than they complete, | |
398 | * whereas reads do not. | |
399 | */ | |
e47f799f | 400 | diff = td->o.rwmix[td->rwmix_ddir ^ 1]; |
04c540d9 | 401 | td->rwmix_issues = (td->io_issues[td->rwmix_ddir] * diff) / 100; |
e47f799f JA |
402 | } |
403 | ||
404 | static inline enum fio_ddir get_rand_ddir(struct thread_data *td) | |
405 | { | |
406 | unsigned int v; | |
407 | long r; | |
408 | ||
409 | r = os_random_long(&td->rwmix_state); | |
dc873b6f | 410 | v = 1 + (int) (100.0 * (r / (OS_RAND_MAX + 1.0))); |
04c540d9 | 411 | if (v <= td->o.rwmix[DDIR_READ]) |
e47f799f JA |
412 | return DDIR_READ; |
413 | ||
414 | return DDIR_WRITE; | |
afe24a5a JA |
415 | } |
416 | ||
581e7141 JA |
417 | static enum fio_ddir rate_ddir(struct thread_data *td, enum fio_ddir ddir) |
418 | { | |
419 | enum fio_ddir odir = ddir ^ 1; | |
420 | struct timeval t; | |
421 | long usec; | |
422 | ||
ff58fced JA |
423 | assert(ddir_rw(ddir)); |
424 | ||
581e7141 JA |
425 | if (td->rate_pending_usleep[ddir] <= 0) |
426 | return ddir; | |
427 | ||
428 | /* | |
429 | * We have too much pending sleep in this direction. See if we | |
430 | * should switch. | |
431 | */ | |
432 | if (td_rw(td)) { | |
433 | /* | |
434 | * Other direction does not have too much pending, switch | |
435 | */ | |
436 | if (td->rate_pending_usleep[odir] < 100000) | |
437 | return odir; | |
438 | ||
439 | /* | |
440 | * Both directions have pending sleep. Sleep the minimum time | |
441 | * and deduct from both. | |
442 | */ | |
443 | if (td->rate_pending_usleep[ddir] <= | |
444 | td->rate_pending_usleep[odir]) { | |
445 | usec = td->rate_pending_usleep[ddir]; | |
446 | } else { | |
447 | usec = td->rate_pending_usleep[odir]; | |
448 | ddir = odir; | |
449 | } | |
450 | } else | |
451 | usec = td->rate_pending_usleep[ddir]; | |
452 | ||
453 | fio_gettime(&t, NULL); | |
454 | usec_sleep(td, usec); | |
455 | usec = utime_since_now(&t); | |
456 | ||
457 | td->rate_pending_usleep[ddir] -= usec; | |
458 | ||
459 | odir = ddir ^ 1; | |
460 | if (td_rw(td) && __should_check_rate(td, odir)) | |
461 | td->rate_pending_usleep[odir] -= usec; | |
0b9d69ec | 462 | |
581e7141 JA |
463 | return ddir; |
464 | } | |
465 | ||
10ba535a JA |
466 | /* |
467 | * Return the data direction for the next io_u. If the job is a | |
468 | * mixed read/write workload, check the rwmix cycle and switch if | |
469 | * necessary. | |
470 | */ | |
1e97cce9 | 471 | static enum fio_ddir get_rw_ddir(struct thread_data *td) |
10ba535a | 472 | { |
581e7141 JA |
473 | enum fio_ddir ddir; |
474 | ||
5f9099ea JA |
475 | /* |
476 | * see if it's time to fsync | |
477 | */ | |
478 | if (td->o.fsync_blocks && | |
479 | !(td->io_issues[DDIR_WRITE] % td->o.fsync_blocks) && | |
480 | td->io_issues[DDIR_WRITE] && should_fsync(td)) | |
481 | return DDIR_SYNC; | |
482 | ||
483 | /* | |
484 | * see if it's time to fdatasync | |
485 | */ | |
486 | if (td->o.fdatasync_blocks && | |
487 | !(td->io_issues[DDIR_WRITE] % td->o.fdatasync_blocks) && | |
488 | td->io_issues[DDIR_WRITE] && should_fsync(td)) | |
489 | return DDIR_DATASYNC; | |
490 | ||
44f29692 JA |
491 | /* |
492 | * see if it's time to sync_file_range | |
493 | */ | |
494 | if (td->sync_file_range_nr && | |
495 | !(td->io_issues[DDIR_WRITE] % td->sync_file_range_nr) && | |
496 | td->io_issues[DDIR_WRITE] && should_fsync(td)) | |
497 | return DDIR_SYNC_FILE_RANGE; | |
498 | ||
10ba535a | 499 | if (td_rw(td)) { |
10ba535a JA |
500 | /* |
501 | * Check if it's time to seed a new data direction. | |
502 | */ | |
e4928662 | 503 | if (td->io_issues[td->rwmix_ddir] >= td->rwmix_issues) { |
e47f799f JA |
504 | /* |
505 | * Put a top limit on how many bytes we do for | |
506 | * one data direction, to avoid overflowing the | |
507 | * ranges too much | |
508 | */ | |
509 | ddir = get_rand_ddir(td); | |
e47f799f JA |
510 | |
511 | if (ddir != td->rwmix_ddir) | |
512 | set_rwmix_bytes(td); | |
513 | ||
514 | td->rwmix_ddir = ddir; | |
10ba535a | 515 | } |
581e7141 | 516 | ddir = td->rwmix_ddir; |
10ba535a | 517 | } else if (td_read(td)) |
581e7141 | 518 | ddir = DDIR_READ; |
10ba535a | 519 | else |
581e7141 JA |
520 | ddir = DDIR_WRITE; |
521 | ||
522 | td->rwmix_ddir = rate_ddir(td, ddir); | |
523 | return td->rwmix_ddir; | |
10ba535a JA |
524 | } |
525 | ||
1ef2b6be JA |
526 | static void set_rw_ddir(struct thread_data *td, struct io_u *io_u) |
527 | { | |
528 | io_u->ddir = get_rw_ddir(td); | |
529 | ||
530 | if (io_u->ddir == DDIR_WRITE && (td->io_ops->flags & FIO_BARRIER) && | |
531 | td->o.barrier_blocks && | |
532 | !(td->io_issues[DDIR_WRITE] % td->o.barrier_blocks) && | |
533 | td->io_issues[DDIR_WRITE]) | |
534 | io_u->flags |= IO_U_F_BARRIER; | |
535 | } | |
536 | ||
e8462bd8 | 537 | void put_file_log(struct thread_data *td, struct fio_file *f) |
60f2c658 JA |
538 | { |
539 | int ret = put_file(td, f); | |
540 | ||
541 | if (ret) | |
542 | td_verror(td, ret, "file close"); | |
543 | } | |
544 | ||
10ba535a JA |
545 | void put_io_u(struct thread_data *td, struct io_u *io_u) |
546 | { | |
e8462bd8 JA |
547 | td_io_u_lock(td); |
548 | ||
0c6e7517 | 549 | io_u->flags |= IO_U_F_FREE; |
e8462bd8 | 550 | io_u->flags &= ~IO_U_F_FREE_DEF; |
0c6e7517 | 551 | |
60f2c658 JA |
552 | if (io_u->file) |
553 | put_file_log(td, io_u->file); | |
2dbdab7e | 554 | |
10ba535a | 555 | io_u->file = NULL; |
0c41214f RR |
556 | if (io_u->flags & IO_U_F_IN_CUR_DEPTH) |
557 | td->cur_depth--; | |
e8462bd8 | 558 | flist_del_init(&io_u->list); |
01743ee1 | 559 | flist_add(&io_u->list, &td->io_u_freelist); |
e8462bd8 JA |
560 | td_io_u_unlock(td); |
561 | td_io_u_free_notify(td); | |
10ba535a JA |
562 | } |
563 | ||
f2bba182 RR |
564 | void clear_io_u(struct thread_data *td, struct io_u *io_u) |
565 | { | |
566 | io_u->flags &= ~IO_U_F_FLIGHT; | |
567 | put_io_u(td, io_u); | |
568 | } | |
569 | ||
755200a3 JA |
570 | void requeue_io_u(struct thread_data *td, struct io_u **io_u) |
571 | { | |
572 | struct io_u *__io_u = *io_u; | |
573 | ||
465221b0 JA |
574 | dprint(FD_IO, "requeue %p\n", __io_u); |
575 | ||
e8462bd8 JA |
576 | td_io_u_lock(td); |
577 | ||
4d2e0f49 | 578 | __io_u->flags |= IO_U_F_FREE; |
ff58fced | 579 | if ((__io_u->flags & IO_U_F_FLIGHT) && ddir_rw(__io_u->ddir)) |
e4f54adb | 580 | td->io_issues[__io_u->ddir]--; |
5ec10eaa | 581 | |
4d2e0f49 | 582 | __io_u->flags &= ~IO_U_F_FLIGHT; |
0c41214f RR |
583 | if (__io_u->flags & IO_U_F_IN_CUR_DEPTH) |
584 | td->cur_depth--; | |
01743ee1 JA |
585 | flist_del(&__io_u->list); |
586 | flist_add_tail(&__io_u->list, &td->io_u_requeues); | |
e8462bd8 | 587 | td_io_u_unlock(td); |
755200a3 JA |
588 | *io_u = NULL; |
589 | } | |
590 | ||
9bf2061e | 591 | static int fill_io_u(struct thread_data *td, struct io_u *io_u) |
10ba535a | 592 | { |
b4c5e1ac JA |
593 | if (td->io_ops->flags & FIO_NOIO) |
594 | goto out; | |
595 | ||
1ef2b6be | 596 | set_rw_ddir(td, io_u); |
5f9099ea | 597 | |
87dc1ab1 | 598 | /* |
ff58fced | 599 | * fsync() or fdatasync() or trim etc, we are done |
87dc1ab1 | 600 | */ |
ff58fced | 601 | if (!ddir_rw(io_u->ddir)) |
c38e9468 | 602 | goto out; |
a00735e6 | 603 | |
48f5abd3 JA |
604 | /* |
605 | * See if it's time to switch to a new zone | |
606 | */ | |
607 | if (td->zone_bytes >= td->o.zone_size) { | |
608 | td->zone_bytes = 0; | |
609 | io_u->file->last_pos += td->o.zone_skip; | |
610 | td->io_skip_bytes += td->o.zone_skip; | |
611 | } | |
612 | ||
10ba535a | 613 | /* |
c685b5b2 JA |
614 | * No log, let the seq/rand engine retrieve the next buflen and |
615 | * position. | |
10ba535a | 616 | */ |
2ba1c290 JA |
617 | if (get_next_offset(td, io_u)) { |
618 | dprint(FD_IO, "io_u %p, failed getting offset\n", io_u); | |
bca4ed4d | 619 | return 1; |
2ba1c290 | 620 | } |
10ba535a | 621 | |
9bf2061e | 622 | io_u->buflen = get_next_buflen(td, io_u); |
2ba1c290 JA |
623 | if (!io_u->buflen) { |
624 | dprint(FD_IO, "io_u %p, failed getting buflen\n", io_u); | |
bca4ed4d | 625 | return 1; |
2ba1c290 | 626 | } |
bca4ed4d | 627 | |
2ba1c290 JA |
628 | if (io_u->offset + io_u->buflen > io_u->file->real_file_size) { |
629 | dprint(FD_IO, "io_u %p, offset too large\n", io_u); | |
4ba66134 JA |
630 | dprint(FD_IO, " off=%llu/%lu > %llu\n", io_u->offset, |
631 | io_u->buflen, io_u->file->real_file_size); | |
6a5e6884 | 632 | return 1; |
2ba1c290 | 633 | } |
6a5e6884 | 634 | |
bca4ed4d JA |
635 | /* |
636 | * mark entry before potentially trimming io_u | |
637 | */ | |
303032ae | 638 | if (td_random(td) && file_randommap(td, io_u->file)) |
9bf2061e | 639 | mark_random_map(td, io_u); |
bca4ed4d JA |
640 | |
641 | /* | |
642 | * If using a write iolog, store this entry. | |
643 | */ | |
c38e9468 | 644 | out: |
2ba1c290 | 645 | dprint_io_u(io_u, "fill_io_u"); |
d9d91e39 | 646 | td->zone_bytes += io_u->buflen; |
f29b25a3 | 647 | log_io_u(td, io_u); |
bca4ed4d | 648 | return 0; |
10ba535a JA |
649 | } |
650 | ||
838bc709 JA |
651 | static void __io_u_mark_map(unsigned int *map, unsigned int nr) |
652 | { | |
2b13e716 | 653 | int idx = 0; |
838bc709 JA |
654 | |
655 | switch (nr) { | |
656 | default: | |
2b13e716 | 657 | idx = 6; |
838bc709 JA |
658 | break; |
659 | case 33 ... 64: | |
2b13e716 | 660 | idx = 5; |
838bc709 JA |
661 | break; |
662 | case 17 ... 32: | |
2b13e716 | 663 | idx = 4; |
838bc709 JA |
664 | break; |
665 | case 9 ... 16: | |
2b13e716 | 666 | idx = 3; |
838bc709 JA |
667 | break; |
668 | case 5 ... 8: | |
2b13e716 | 669 | idx = 2; |
838bc709 JA |
670 | break; |
671 | case 1 ... 4: | |
2b13e716 | 672 | idx = 1; |
838bc709 JA |
673 | case 0: |
674 | break; | |
675 | } | |
676 | ||
2b13e716 | 677 | map[idx]++; |
838bc709 JA |
678 | } |
679 | ||
680 | void io_u_mark_submit(struct thread_data *td, unsigned int nr) | |
681 | { | |
682 | __io_u_mark_map(td->ts.io_u_submit, nr); | |
683 | td->ts.total_submit++; | |
684 | } | |
685 | ||
686 | void io_u_mark_complete(struct thread_data *td, unsigned int nr) | |
687 | { | |
688 | __io_u_mark_map(td->ts.io_u_complete, nr); | |
689 | td->ts.total_complete++; | |
690 | } | |
691 | ||
d8005759 | 692 | void io_u_mark_depth(struct thread_data *td, unsigned int nr) |
71619dc2 | 693 | { |
2b13e716 | 694 | int idx = 0; |
71619dc2 JA |
695 | |
696 | switch (td->cur_depth) { | |
697 | default: | |
2b13e716 | 698 | idx = 6; |
a783e61a | 699 | break; |
71619dc2 | 700 | case 32 ... 63: |
2b13e716 | 701 | idx = 5; |
a783e61a | 702 | break; |
71619dc2 | 703 | case 16 ... 31: |
2b13e716 | 704 | idx = 4; |
a783e61a | 705 | break; |
71619dc2 | 706 | case 8 ... 15: |
2b13e716 | 707 | idx = 3; |
a783e61a | 708 | break; |
71619dc2 | 709 | case 4 ... 7: |
2b13e716 | 710 | idx = 2; |
a783e61a | 711 | break; |
71619dc2 | 712 | case 2 ... 3: |
2b13e716 | 713 | idx = 1; |
71619dc2 JA |
714 | case 1: |
715 | break; | |
716 | } | |
717 | ||
2b13e716 | 718 | td->ts.io_u_map[idx] += nr; |
71619dc2 JA |
719 | } |
720 | ||
04a0feae JA |
721 | static void io_u_mark_lat_usec(struct thread_data *td, unsigned long usec) |
722 | { | |
2b13e716 | 723 | int idx = 0; |
04a0feae JA |
724 | |
725 | assert(usec < 1000); | |
726 | ||
727 | switch (usec) { | |
728 | case 750 ... 999: | |
2b13e716 | 729 | idx = 9; |
04a0feae JA |
730 | break; |
731 | case 500 ... 749: | |
2b13e716 | 732 | idx = 8; |
04a0feae JA |
733 | break; |
734 | case 250 ... 499: | |
2b13e716 | 735 | idx = 7; |
04a0feae JA |
736 | break; |
737 | case 100 ... 249: | |
2b13e716 | 738 | idx = 6; |
04a0feae JA |
739 | break; |
740 | case 50 ... 99: | |
2b13e716 | 741 | idx = 5; |
04a0feae JA |
742 | break; |
743 | case 20 ... 49: | |
2b13e716 | 744 | idx = 4; |
04a0feae JA |
745 | break; |
746 | case 10 ... 19: | |
2b13e716 | 747 | idx = 3; |
04a0feae JA |
748 | break; |
749 | case 4 ... 9: | |
2b13e716 | 750 | idx = 2; |
04a0feae JA |
751 | break; |
752 | case 2 ... 3: | |
2b13e716 | 753 | idx = 1; |
04a0feae JA |
754 | case 0 ... 1: |
755 | break; | |
756 | } | |
757 | ||
2b13e716 JA |
758 | assert(idx < FIO_IO_U_LAT_U_NR); |
759 | td->ts.io_u_lat_u[idx]++; | |
04a0feae JA |
760 | } |
761 | ||
762 | static void io_u_mark_lat_msec(struct thread_data *td, unsigned long msec) | |
ec118304 | 763 | { |
2b13e716 | 764 | int idx = 0; |
ec118304 JA |
765 | |
766 | switch (msec) { | |
767 | default: | |
2b13e716 | 768 | idx = 11; |
04a0feae | 769 | break; |
8abdce66 | 770 | case 1000 ... 1999: |
2b13e716 | 771 | idx = 10; |
04a0feae | 772 | break; |
8abdce66 | 773 | case 750 ... 999: |
2b13e716 | 774 | idx = 9; |
04a0feae | 775 | break; |
8abdce66 | 776 | case 500 ... 749: |
2b13e716 | 777 | idx = 8; |
04a0feae | 778 | break; |
8abdce66 | 779 | case 250 ... 499: |
2b13e716 | 780 | idx = 7; |
04a0feae | 781 | break; |
8abdce66 | 782 | case 100 ... 249: |
2b13e716 | 783 | idx = 6; |
04a0feae | 784 | break; |
8abdce66 | 785 | case 50 ... 99: |
2b13e716 | 786 | idx = 5; |
04a0feae | 787 | break; |
8abdce66 | 788 | case 20 ... 49: |
2b13e716 | 789 | idx = 4; |
04a0feae | 790 | break; |
8abdce66 | 791 | case 10 ... 19: |
2b13e716 | 792 | idx = 3; |
04a0feae | 793 | break; |
8abdce66 | 794 | case 4 ... 9: |
2b13e716 | 795 | idx = 2; |
04a0feae | 796 | break; |
ec118304 | 797 | case 2 ... 3: |
2b13e716 | 798 | idx = 1; |
ec118304 JA |
799 | case 0 ... 1: |
800 | break; | |
801 | } | |
802 | ||
2b13e716 JA |
803 | assert(idx < FIO_IO_U_LAT_M_NR); |
804 | td->ts.io_u_lat_m[idx]++; | |
04a0feae JA |
805 | } |
806 | ||
807 | static void io_u_mark_latency(struct thread_data *td, unsigned long usec) | |
808 | { | |
809 | if (usec < 1000) | |
810 | io_u_mark_lat_usec(td, usec); | |
811 | else | |
812 | io_u_mark_lat_msec(td, usec / 1000); | |
ec118304 JA |
813 | } |
814 | ||
0aabe160 JA |
815 | /* |
816 | * Get next file to service by choosing one at random | |
817 | */ | |
2cc52930 JA |
818 | static struct fio_file *get_next_file_rand(struct thread_data *td, |
819 | enum fio_file_flags goodf, | |
d6aed795 | 820 | enum fio_file_flags badf) |
0aabe160 | 821 | { |
0aabe160 | 822 | struct fio_file *f; |
1c178180 | 823 | int fno; |
0aabe160 JA |
824 | |
825 | do { | |
7c83c089 | 826 | long r = os_random_long(&td->next_file_state); |
87b10676 | 827 | int opened = 0; |
7c83c089 | 828 | |
5ec10eaa | 829 | fno = (unsigned int) ((double) td->o.nr_files |
dc873b6f | 830 | * (r / (OS_RAND_MAX + 1.0))); |
126d65c6 | 831 | f = td->files[fno]; |
d6aed795 | 832 | if (fio_file_done(f)) |
059e63c0 | 833 | continue; |
1c178180 | 834 | |
d6aed795 | 835 | if (!fio_file_open(f)) { |
87b10676 JA |
836 | int err; |
837 | ||
838 | err = td_io_open_file(td, f); | |
839 | if (err) | |
840 | continue; | |
841 | opened = 1; | |
842 | } | |
843 | ||
2ba1c290 JA |
844 | if ((!goodf || (f->flags & goodf)) && !(f->flags & badf)) { |
845 | dprint(FD_FILE, "get_next_file_rand: %p\n", f); | |
0aabe160 | 846 | return f; |
2ba1c290 | 847 | } |
87b10676 JA |
848 | if (opened) |
849 | td_io_close_file(td, f); | |
0aabe160 JA |
850 | } while (1); |
851 | } | |
852 | ||
853 | /* | |
854 | * Get next file to service by doing round robin between all available ones | |
855 | */ | |
1c178180 JA |
856 | static struct fio_file *get_next_file_rr(struct thread_data *td, int goodf, |
857 | int badf) | |
3d7c391d JA |
858 | { |
859 | unsigned int old_next_file = td->next_file; | |
860 | struct fio_file *f; | |
861 | ||
862 | do { | |
87b10676 JA |
863 | int opened = 0; |
864 | ||
126d65c6 | 865 | f = td->files[td->next_file]; |
3d7c391d JA |
866 | |
867 | td->next_file++; | |
2dc1bbeb | 868 | if (td->next_file >= td->o.nr_files) |
3d7c391d JA |
869 | td->next_file = 0; |
870 | ||
87b10676 | 871 | dprint(FD_FILE, "trying file %s %x\n", f->file_name, f->flags); |
d6aed795 | 872 | if (fio_file_done(f)) { |
d5ed68ea | 873 | f = NULL; |
059e63c0 | 874 | continue; |
d5ed68ea | 875 | } |
059e63c0 | 876 | |
d6aed795 | 877 | if (!fio_file_open(f)) { |
87b10676 JA |
878 | int err; |
879 | ||
880 | err = td_io_open_file(td, f); | |
b5696bfc JA |
881 | if (err) { |
882 | dprint(FD_FILE, "error %d on open of %s\n", | |
883 | err, f->file_name); | |
87c27b45 | 884 | f = NULL; |
87b10676 | 885 | continue; |
b5696bfc | 886 | } |
87b10676 JA |
887 | opened = 1; |
888 | } | |
889 | ||
0b9d69ec JA |
890 | dprint(FD_FILE, "goodf=%x, badf=%x, ff=%x\n", goodf, badf, |
891 | f->flags); | |
1c178180 | 892 | if ((!goodf || (f->flags & goodf)) && !(f->flags & badf)) |
3d7c391d JA |
893 | break; |
894 | ||
87b10676 JA |
895 | if (opened) |
896 | td_io_close_file(td, f); | |
897 | ||
3d7c391d JA |
898 | f = NULL; |
899 | } while (td->next_file != old_next_file); | |
900 | ||
2ba1c290 | 901 | dprint(FD_FILE, "get_next_file_rr: %p\n", f); |
3d7c391d JA |
902 | return f; |
903 | } | |
904 | ||
7eb36574 | 905 | static struct fio_file *__get_next_file(struct thread_data *td) |
bdb4e2e9 | 906 | { |
1907dbc6 JA |
907 | struct fio_file *f; |
908 | ||
2dc1bbeb | 909 | assert(td->o.nr_files <= td->files_index); |
1c178180 | 910 | |
b5696bfc | 911 | if (td->nr_done_files >= td->o.nr_files) { |
5ec10eaa JA |
912 | dprint(FD_FILE, "get_next_file: nr_open=%d, nr_done=%d," |
913 | " nr_files=%d\n", td->nr_open_files, | |
914 | td->nr_done_files, | |
915 | td->o.nr_files); | |
bdb4e2e9 | 916 | return NULL; |
2ba1c290 | 917 | } |
bdb4e2e9 | 918 | |
1907dbc6 | 919 | f = td->file_service_file; |
d6aed795 | 920 | if (f && fio_file_open(f) && !fio_file_closing(f)) { |
a086c257 JA |
921 | if (td->o.file_service_type == FIO_FSERVICE_SEQ) |
922 | goto out; | |
923 | if (td->file_service_left--) | |
924 | goto out; | |
925 | } | |
1907dbc6 | 926 | |
a086c257 JA |
927 | if (td->o.file_service_type == FIO_FSERVICE_RR || |
928 | td->o.file_service_type == FIO_FSERVICE_SEQ) | |
d6aed795 | 929 | f = get_next_file_rr(td, FIO_FILE_open, FIO_FILE_closing); |
bdb4e2e9 | 930 | else |
d6aed795 | 931 | f = get_next_file_rand(td, FIO_FILE_open, FIO_FILE_closing); |
1907dbc6 JA |
932 | |
933 | td->file_service_file = f; | |
934 | td->file_service_left = td->file_service_nr - 1; | |
2ba1c290 | 935 | out: |
683023e8 | 936 | dprint(FD_FILE, "get_next_file: %p [%s]\n", f, f->file_name); |
1907dbc6 | 937 | return f; |
bdb4e2e9 JA |
938 | } |
939 | ||
7eb36574 JA |
940 | static struct fio_file *get_next_file(struct thread_data *td) |
941 | { | |
942 | struct prof_io_ops *ops = &td->prof_io_ops; | |
943 | ||
944 | if (ops->get_next_file) | |
945 | return ops->get_next_file(td); | |
946 | ||
947 | return __get_next_file(td); | |
948 | } | |
949 | ||
429f6675 JA |
950 | static int set_io_u_file(struct thread_data *td, struct io_u *io_u) |
951 | { | |
952 | struct fio_file *f; | |
953 | ||
954 | do { | |
955 | f = get_next_file(td); | |
956 | if (!f) | |
957 | return 1; | |
958 | ||
429f6675 JA |
959 | io_u->file = f; |
960 | get_file(f); | |
961 | ||
962 | if (!fill_io_u(td, io_u)) | |
963 | break; | |
964 | ||
b5696bfc | 965 | put_file_log(td, f); |
429f6675 | 966 | td_io_close_file(td, f); |
b5696bfc | 967 | io_u->file = NULL; |
d6aed795 | 968 | fio_file_set_done(f); |
429f6675 | 969 | td->nr_done_files++; |
0b9d69ec JA |
970 | dprint(FD_FILE, "%s: is done (%d of %d)\n", f->file_name, |
971 | td->nr_done_files, td->o.nr_files); | |
429f6675 JA |
972 | } while (1); |
973 | ||
974 | return 0; | |
975 | } | |
976 | ||
977 | ||
10ba535a JA |
978 | struct io_u *__get_io_u(struct thread_data *td) |
979 | { | |
980 | struct io_u *io_u = NULL; | |
981 | ||
e8462bd8 JA |
982 | td_io_u_lock(td); |
983 | ||
984 | again: | |
01743ee1 JA |
985 | if (!flist_empty(&td->io_u_requeues)) |
986 | io_u = flist_entry(td->io_u_requeues.next, struct io_u, list); | |
755200a3 | 987 | else if (!queue_full(td)) { |
01743ee1 | 988 | io_u = flist_entry(td->io_u_freelist.next, struct io_u, list); |
10ba535a | 989 | |
6040dabc | 990 | io_u->buflen = 0; |
10ba535a | 991 | io_u->resid = 0; |
755200a3 | 992 | io_u->file = NULL; |
d7762cf8 | 993 | io_u->end_io = NULL; |
755200a3 JA |
994 | } |
995 | ||
996 | if (io_u) { | |
0c6e7517 | 997 | assert(io_u->flags & IO_U_F_FREE); |
2ecc1b57 | 998 | io_u->flags &= ~(IO_U_F_FREE | IO_U_F_FREE_DEF); |
1ef2b6be | 999 | io_u->flags &= ~(IO_U_F_TRIMMED | IO_U_F_BARRIER); |
0c6e7517 | 1000 | |
755200a3 | 1001 | io_u->error = 0; |
01743ee1 JA |
1002 | flist_del(&io_u->list); |
1003 | flist_add(&io_u->list, &td->io_u_busylist); | |
10ba535a | 1004 | td->cur_depth++; |
0c41214f | 1005 | io_u->flags |= IO_U_F_IN_CUR_DEPTH; |
1dec3e07 JA |
1006 | } else if (td->o.verify_async) { |
1007 | /* | |
1008 | * We ran out, wait for async verify threads to finish and | |
1009 | * return one | |
1010 | */ | |
1011 | pthread_cond_wait(&td->free_cond, &td->io_u_lock); | |
1012 | goto again; | |
10ba535a JA |
1013 | } |
1014 | ||
e8462bd8 | 1015 | td_io_u_unlock(td); |
10ba535a JA |
1016 | return io_u; |
1017 | } | |
1018 | ||
0d29de83 | 1019 | static int check_get_trim(struct thread_data *td, struct io_u *io_u) |
10ba535a | 1020 | { |
0d29de83 JA |
1021 | if (td->o.trim_backlog && td->trim_entries) { |
1022 | int get_trim = 0; | |
10ba535a | 1023 | |
0d29de83 JA |
1024 | if (td->trim_batch) { |
1025 | td->trim_batch--; | |
1026 | get_trim = 1; | |
1027 | } else if (!(td->io_hist_len % td->o.trim_backlog) && | |
1028 | td->last_ddir != DDIR_READ) { | |
1029 | td->trim_batch = td->o.trim_batch; | |
1030 | if (!td->trim_batch) | |
1031 | td->trim_batch = td->o.trim_backlog; | |
1032 | get_trim = 1; | |
1033 | } | |
1034 | ||
1035 | if (get_trim && !get_next_trim(td, io_u)) | |
1036 | return 1; | |
2ba1c290 | 1037 | } |
10ba535a | 1038 | |
0d29de83 JA |
1039 | return 0; |
1040 | } | |
1041 | ||
1042 | static int check_get_verify(struct thread_data *td, struct io_u *io_u) | |
1043 | { | |
9e144189 JA |
1044 | if (td->o.verify_backlog && td->io_hist_len) { |
1045 | int get_verify = 0; | |
1046 | ||
1047 | if (td->verify_batch) { | |
1048 | td->verify_batch--; | |
1049 | get_verify = 1; | |
1050 | } else if (!(td->io_hist_len % td->o.verify_backlog) && | |
1051 | td->last_ddir != DDIR_READ) { | |
1052 | td->verify_batch = td->o.verify_batch; | |
f8a75c99 JA |
1053 | if (!td->verify_batch) |
1054 | td->verify_batch = td->o.verify_backlog; | |
9e144189 JA |
1055 | get_verify = 1; |
1056 | } | |
1057 | ||
1058 | if (get_verify && !get_next_verify(td, io_u)) | |
0d29de83 | 1059 | return 1; |
9e144189 JA |
1060 | } |
1061 | ||
0d29de83 JA |
1062 | return 0; |
1063 | } | |
1064 | ||
1065 | /* | |
1066 | * Return an io_u to be processed. Gets a buflen and offset, sets direction, | |
1067 | * etc. The returned io_u is fully ready to be prepped and submitted. | |
1068 | */ | |
1069 | struct io_u *get_io_u(struct thread_data *td) | |
1070 | { | |
1071 | struct fio_file *f; | |
1072 | struct io_u *io_u; | |
1073 | ||
1074 | io_u = __get_io_u(td); | |
1075 | if (!io_u) { | |
1076 | dprint(FD_IO, "__get_io_u failed\n"); | |
1077 | return NULL; | |
1078 | } | |
1079 | ||
1080 | if (check_get_verify(td, io_u)) | |
1081 | goto out; | |
1082 | if (check_get_trim(td, io_u)) | |
1083 | goto out; | |
1084 | ||
755200a3 JA |
1085 | /* |
1086 | * from a requeue, io_u already setup | |
1087 | */ | |
1088 | if (io_u->file) | |
77f392bf | 1089 | goto out; |
755200a3 | 1090 | |
429f6675 JA |
1091 | /* |
1092 | * If using an iolog, grab next piece if any available. | |
1093 | */ | |
1094 | if (td->o.read_iolog_file) { | |
1095 | if (read_iolog_get(td, io_u)) | |
1096 | goto err_put; | |
2ba1c290 JA |
1097 | } else if (set_io_u_file(td, io_u)) { |
1098 | dprint(FD_IO, "io_u %p, setting file failed\n", io_u); | |
429f6675 | 1099 | goto err_put; |
2ba1c290 | 1100 | } |
5ec10eaa | 1101 | |
429f6675 | 1102 | f = io_u->file; |
d6aed795 | 1103 | assert(fio_file_open(f)); |
97af62ce | 1104 | |
ff58fced | 1105 | if (ddir_rw(io_u->ddir)) { |
d0656a93 | 1106 | if (!io_u->buflen && !(td->io_ops->flags & FIO_NOIO)) { |
2ba1c290 | 1107 | dprint(FD_IO, "get_io_u: zero buflen on %p\n", io_u); |
429f6675 | 1108 | goto err_put; |
2ba1c290 | 1109 | } |
10ba535a | 1110 | |
38dad62d | 1111 | f->last_start = io_u->offset; |
36167d82 | 1112 | f->last_pos = io_u->offset + io_u->buflen; |
10ba535a | 1113 | |
c311cd2a | 1114 | if (td->o.verify != VERIFY_NONE && io_u->ddir == DDIR_WRITE) |
87dc1ab1 | 1115 | populate_verify_io_u(td, io_u); |
e4dad9c6 JA |
1116 | else if (td->o.refill_buffers && io_u->ddir == DDIR_WRITE) |
1117 | io_u_fill_buffer(td, io_u, io_u->xfer_buflen); | |
cbe8d756 RR |
1118 | else if (io_u->ddir == DDIR_READ) { |
1119 | /* | |
1120 | * Reset the buf_filled parameters so next time if the | |
1121 | * buffer is used for writes it is refilled. | |
1122 | */ | |
cbe8d756 RR |
1123 | io_u->buf_filled_len = 0; |
1124 | } | |
87dc1ab1 | 1125 | } |
10ba535a | 1126 | |
165faf16 JA |
1127 | /* |
1128 | * Set io data pointers. | |
1129 | */ | |
cec6b55d JA |
1130 | io_u->xfer_buf = io_u->buf; |
1131 | io_u->xfer_buflen = io_u->buflen; | |
5973cafb | 1132 | |
6ac7a331 | 1133 | out: |
0d29de83 | 1134 | assert(io_u->file); |
429f6675 | 1135 | if (!td_io_prep(td, io_u)) { |
993bf48b JA |
1136 | if (!td->o.disable_slat) |
1137 | fio_gettime(&io_u->start_time, NULL); | |
429f6675 | 1138 | return io_u; |
36167d82 | 1139 | } |
429f6675 | 1140 | err_put: |
2ba1c290 | 1141 | dprint(FD_IO, "get_io_u failed\n"); |
429f6675 JA |
1142 | put_io_u(td, io_u); |
1143 | return NULL; | |
10ba535a JA |
1144 | } |
1145 | ||
5451792e JA |
1146 | void io_u_log_error(struct thread_data *td, struct io_u *io_u) |
1147 | { | |
825f818e JA |
1148 | const char *msg[] = { "read", "write", "sync", "datasync", |
1149 | "sync_file_range", "wait", "trim" }; | |
1150 | ||
1151 | ||
5451792e JA |
1152 | |
1153 | log_err("fio: io_u error"); | |
1154 | ||
1155 | if (io_u->file) | |
1156 | log_err(" on file %s", io_u->file->file_name); | |
1157 | ||
1158 | log_err(": %s\n", strerror(io_u->error)); | |
1159 | ||
5ec10eaa JA |
1160 | log_err(" %s offset=%llu, buflen=%lu\n", msg[io_u->ddir], |
1161 | io_u->offset, io_u->xfer_buflen); | |
5451792e JA |
1162 | |
1163 | if (!td->error) | |
1164 | td_verror(td, io_u->error, "io_u error"); | |
1165 | } | |
1166 | ||
97601024 JA |
1167 | static void io_completed(struct thread_data *td, struct io_u *io_u, |
1168 | struct io_completion_data *icd) | |
10ba535a | 1169 | { |
dbad30b0 JA |
1170 | /* |
1171 | * Older gcc's are too dumb to realize that usec is always used | |
1172 | * initialized, silence that warning. | |
1173 | */ | |
1174 | unsigned long uninitialized_var(usec); | |
44f29692 | 1175 | struct fio_file *f; |
10ba535a | 1176 | |
2ba1c290 JA |
1177 | dprint_io_u(io_u, "io complete"); |
1178 | ||
2ecc1b57 | 1179 | td_io_u_lock(td); |
0c6e7517 | 1180 | assert(io_u->flags & IO_U_F_FLIGHT); |
38dad62d | 1181 | io_u->flags &= ~(IO_U_F_FLIGHT | IO_U_F_BUSY_OK); |
2ecc1b57 | 1182 | td_io_u_unlock(td); |
0c6e7517 | 1183 | |
5f9099ea | 1184 | if (ddir_sync(io_u->ddir)) { |
87dc1ab1 | 1185 | td->last_was_sync = 1; |
44f29692 JA |
1186 | f = io_u->file; |
1187 | if (f) { | |
1188 | f->first_write = -1ULL; | |
1189 | f->last_write = -1ULL; | |
1190 | } | |
87dc1ab1 JA |
1191 | return; |
1192 | } | |
1193 | ||
1194 | td->last_was_sync = 0; | |
9e144189 | 1195 | td->last_ddir = io_u->ddir; |
87dc1ab1 | 1196 | |
ff58fced | 1197 | if (!io_u->error && ddir_rw(io_u->ddir)) { |
10ba535a | 1198 | unsigned int bytes = io_u->buflen - io_u->resid; |
1e97cce9 | 1199 | const enum fio_ddir idx = io_u->ddir; |
ba3e4e0c | 1200 | const enum fio_ddir odx = io_u->ddir ^ 1; |
b29ee5b3 | 1201 | int ret; |
10ba535a | 1202 | |
b29ee5b3 JA |
1203 | td->io_blocks[idx]++; |
1204 | td->io_bytes[idx] += bytes; | |
1205 | td->this_io_bytes[idx] += bytes; | |
10ba535a | 1206 | |
44f29692 JA |
1207 | if (idx == DDIR_WRITE) { |
1208 | f = io_u->file; | |
1209 | if (f) { | |
1210 | if (f->first_write == -1ULL || | |
1211 | io_u->offset < f->first_write) | |
1212 | f->first_write = io_u->offset; | |
1213 | if (f->last_write == -1ULL || | |
1214 | ((io_u->offset + bytes) > f->last_write)) | |
1215 | f->last_write = io_u->offset + bytes; | |
1216 | } | |
1217 | } | |
1218 | ||
b29ee5b3 | 1219 | if (ramp_time_over(td)) { |
40e1a6f0 | 1220 | unsigned long uninitialized_var(lusec); |
40e1a6f0 JA |
1221 | |
1222 | if (!td->o.disable_clat || !td->o.disable_bw) | |
1223 | lusec = utime_since(&io_u->issue_time, | |
1224 | &icd->time); | |
02af0988 JA |
1225 | if (!td->o.disable_lat) { |
1226 | unsigned long tusec; | |
721938ae | 1227 | |
02af0988 JA |
1228 | tusec = utime_since(&io_u->start_time, |
1229 | &icd->time); | |
1230 | add_lat_sample(td, idx, tusec, bytes); | |
1231 | } | |
9520ebb9 | 1232 | if (!td->o.disable_clat) { |
01a1caa5 | 1233 | add_clat_sample(td, idx, lusec, bytes); |
40e1a6f0 | 1234 | io_u_mark_latency(td, lusec); |
9520ebb9 JA |
1235 | } |
1236 | if (!td->o.disable_bw) | |
306ddc97 | 1237 | add_bw_sample(td, idx, bytes, &icd->time); |
b23b6a2f | 1238 | if (__should_check_rate(td, idx)) { |
ba3e4e0c RR |
1239 | td->rate_pending_usleep[idx] = |
1240 | ((td->this_io_bytes[idx] * | |
1241 | td->rate_nsec_cycle[idx]) / 1000 - | |
1242 | utime_since_now(&td->start)); | |
b23b6a2f | 1243 | } |
581e7141 | 1244 | if (__should_check_rate(td, idx ^ 1)) |
ba3e4e0c RR |
1245 | td->rate_pending_usleep[odx] = |
1246 | ((td->this_io_bytes[odx] * | |
1247 | td->rate_nsec_cycle[odx]) / 1000 - | |
1248 | utime_since_now(&td->start)); | |
721938ae | 1249 | } |
10ba535a | 1250 | |
660a1cb5 | 1251 | if (td_write(td) && idx == DDIR_WRITE && |
8670579e | 1252 | td->o.do_verify && |
41128405 | 1253 | td->o.verify != VERIFY_NONE) |
10ba535a JA |
1254 | log_io_piece(td, io_u); |
1255 | ||
b29ee5b3 | 1256 | icd->bytes_done[idx] += bytes; |
3af6ef39 | 1257 | |
d7762cf8 | 1258 | if (io_u->end_io) { |
36690c9b | 1259 | ret = io_u->end_io(td, io_u); |
3af6ef39 JA |
1260 | if (ret && !icd->error) |
1261 | icd->error = ret; | |
1262 | } | |
ff58fced | 1263 | } else if (io_u->error) { |
10ba535a | 1264 | icd->error = io_u->error; |
5451792e JA |
1265 | io_u_log_error(td, io_u); |
1266 | } | |
f2bba182 RR |
1267 | if (td->o.continue_on_error && icd->error && |
1268 | td_non_fatal_error(icd->error)) { | |
1269 | /* | |
1270 | * If there is a non_fatal error, then add to the error count | |
1271 | * and clear all the errors. | |
1272 | */ | |
1273 | update_error_count(td, icd->error); | |
1274 | td_clear_error(td); | |
1275 | icd->error = 0; | |
1276 | io_u->error = 0; | |
1277 | } | |
10ba535a JA |
1278 | } |
1279 | ||
9520ebb9 JA |
1280 | static void init_icd(struct thread_data *td, struct io_completion_data *icd, |
1281 | int nr) | |
10ba535a | 1282 | { |
9520ebb9 JA |
1283 | if (!td->o.disable_clat || !td->o.disable_bw) |
1284 | fio_gettime(&icd->time, NULL); | |
02bcaa8c | 1285 | |
3af6ef39 JA |
1286 | icd->nr = nr; |
1287 | ||
10ba535a JA |
1288 | icd->error = 0; |
1289 | icd->bytes_done[0] = icd->bytes_done[1] = 0; | |
36167d82 JA |
1290 | } |
1291 | ||
97601024 JA |
1292 | static void ios_completed(struct thread_data *td, |
1293 | struct io_completion_data *icd) | |
36167d82 JA |
1294 | { |
1295 | struct io_u *io_u; | |
1296 | int i; | |
1297 | ||
10ba535a JA |
1298 | for (i = 0; i < icd->nr; i++) { |
1299 | io_u = td->io_ops->event(td, i); | |
1300 | ||
1301 | io_completed(td, io_u, icd); | |
e8462bd8 JA |
1302 | |
1303 | if (!(io_u->flags & IO_U_F_FREE_DEF)) | |
1304 | put_io_u(td, io_u); | |
10ba535a JA |
1305 | } |
1306 | } | |
97601024 | 1307 | |
e7e6cfb4 JA |
1308 | /* |
1309 | * Complete a single io_u for the sync engines. | |
1310 | */ | |
581e7141 JA |
1311 | int io_u_sync_complete(struct thread_data *td, struct io_u *io_u, |
1312 | unsigned long *bytes) | |
97601024 JA |
1313 | { |
1314 | struct io_completion_data icd; | |
1315 | ||
9520ebb9 | 1316 | init_icd(td, &icd, 1); |
97601024 | 1317 | io_completed(td, io_u, &icd); |
e8462bd8 JA |
1318 | |
1319 | if (!(io_u->flags & IO_U_F_FREE_DEF)) | |
1320 | put_io_u(td, io_u); | |
97601024 | 1321 | |
581e7141 JA |
1322 | if (icd.error) { |
1323 | td_verror(td, icd.error, "io_u_sync_complete"); | |
1324 | return -1; | |
1325 | } | |
97601024 | 1326 | |
581e7141 JA |
1327 | if (bytes) { |
1328 | bytes[0] += icd.bytes_done[0]; | |
1329 | bytes[1] += icd.bytes_done[1]; | |
1330 | } | |
1331 | ||
1332 | return 0; | |
97601024 JA |
1333 | } |
1334 | ||
e7e6cfb4 JA |
1335 | /* |
1336 | * Called to complete min_events number of io for the async engines. | |
1337 | */ | |
581e7141 JA |
1338 | int io_u_queued_complete(struct thread_data *td, int min_evts, |
1339 | unsigned long *bytes) | |
97601024 | 1340 | { |
97601024 | 1341 | struct io_completion_data icd; |
00de55ef | 1342 | struct timespec *tvp = NULL; |
97601024 | 1343 | int ret; |
4d06a338 | 1344 | struct timespec ts = { .tv_sec = 0, .tv_nsec = 0, }; |
97601024 | 1345 | |
4950421a | 1346 | dprint(FD_IO, "io_u_queued_completed: min=%d\n", min_evts); |
b271fe62 | 1347 | |
4950421a | 1348 | if (!min_evts) |
00de55ef | 1349 | tvp = &ts; |
97601024 | 1350 | |
4950421a | 1351 | ret = td_io_getevents(td, min_evts, td->o.iodepth_batch_complete, tvp); |
97601024 | 1352 | if (ret < 0) { |
e1161c32 | 1353 | td_verror(td, -ret, "td_io_getevents"); |
97601024 JA |
1354 | return ret; |
1355 | } else if (!ret) | |
1356 | return ret; | |
1357 | ||
9520ebb9 | 1358 | init_icd(td, &icd, ret); |
97601024 | 1359 | ios_completed(td, &icd); |
581e7141 JA |
1360 | if (icd.error) { |
1361 | td_verror(td, icd.error, "io_u_queued_complete"); | |
1362 | return -1; | |
1363 | } | |
97601024 | 1364 | |
581e7141 JA |
1365 | if (bytes) { |
1366 | bytes[0] += icd.bytes_done[0]; | |
1367 | bytes[1] += icd.bytes_done[1]; | |
1368 | } | |
1369 | ||
1370 | return 0; | |
97601024 | 1371 | } |
7e77dd02 JA |
1372 | |
1373 | /* | |
1374 | * Call when io_u is really queued, to update the submission latency. | |
1375 | */ | |
1376 | void io_u_queued(struct thread_data *td, struct io_u *io_u) | |
1377 | { | |
9520ebb9 JA |
1378 | if (!td->o.disable_slat) { |
1379 | unsigned long slat_time; | |
7e77dd02 | 1380 | |
9520ebb9 | 1381 | slat_time = utime_since(&io_u->start_time, &io_u->issue_time); |
29a90ddb | 1382 | add_slat_sample(td, io_u->ddir, slat_time, io_u->xfer_buflen); |
9520ebb9 | 1383 | } |
7e77dd02 | 1384 | } |
433afcb4 | 1385 | |
5973cafb JA |
1386 | /* |
1387 | * "randomly" fill the buffer contents | |
1388 | */ | |
1389 | void io_u_fill_buffer(struct thread_data *td, struct io_u *io_u, | |
1390 | unsigned int max_bs) | |
1391 | { | |
e84b371e JA |
1392 | io_u->buf_filled_len = 0; |
1393 | ||
637ef8d9 JA |
1394 | if (!td->o.zero_buffers) |
1395 | fill_random_buf(io_u->buf, max_bs); | |
1396 | else | |
1397 | memset(io_u->buf, 0, max_bs); | |
5973cafb | 1398 | } |