Commit | Line | Data |
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10ba535a | 1 | #include <unistd.h> |
10ba535a | 2 | #include <string.h> |
0c6e7517 | 3 | #include <assert.h> |
10ba535a JA |
4 | |
5 | #include "fio.h" | |
4f5af7b2 | 6 | #include "verify.h" |
0d29de83 | 7 | #include "trim.h" |
1fbbf72e | 8 | #include "lib/rand.h" |
7ebd796f | 9 | #include "lib/axmap.h" |
002fe734 | 10 | #include "err.h" |
0f38bbef | 11 | #include "lib/pow2.h" |
4b157ac6 | 12 | #include "minmax.h" |
10ba535a | 13 | |
97601024 JA |
14 | struct io_completion_data { |
15 | int nr; /* input */ | |
97601024 JA |
16 | |
17 | int error; /* output */ | |
100f49f1 | 18 | uint64_t bytes_done[DDIR_RWDIR_CNT]; /* output */ |
8b6a404c | 19 | struct timespec time; /* output */ |
97601024 JA |
20 | }; |
21 | ||
10ba535a | 22 | /* |
7ebd796f | 23 | * The ->io_axmap contains a map of blocks we have or have not done io |
10ba535a JA |
24 | * to yet. Used to make sure we cover the entire range in a fair fashion. |
25 | */ | |
e39c0676 | 26 | static bool random_map_free(struct fio_file *f, const uint64_t block) |
10ba535a | 27 | { |
7ebd796f | 28 | return !axmap_isset(f->io_axmap, block); |
10ba535a JA |
29 | } |
30 | ||
df415585 JA |
31 | /* |
32 | * Mark a given offset as used in the map. | |
33 | */ | |
9bf2061e | 34 | static void mark_random_map(struct thread_data *td, struct io_u *io_u) |
df415585 | 35 | { |
956e60ea | 36 | unsigned int min_bs = td->o.min_bs[io_u->ddir]; |
9bf2061e | 37 | struct fio_file *f = io_u->file; |
51ede0b1 | 38 | unsigned int nr_blocks; |
1ae83d45 | 39 | uint64_t block; |
df415585 | 40 | |
1ae83d45 | 41 | block = (io_u->offset - f->file_offset) / (uint64_t) min_bs; |
c685b5b2 | 42 | nr_blocks = (io_u->buflen + min_bs - 1) / min_bs; |
df415585 | 43 | |
2ab9e98b | 44 | if (!(io_u->flags & IO_U_F_BUSY_OK)) |
7ebd796f | 45 | nr_blocks = axmap_set_nr(f->io_axmap, block, nr_blocks); |
df415585 | 46 | |
51ede0b1 JA |
47 | if ((nr_blocks * min_bs) < io_u->buflen) |
48 | io_u->buflen = nr_blocks * min_bs; | |
df415585 JA |
49 | } |
50 | ||
74776733 JA |
51 | static uint64_t last_block(struct thread_data *td, struct fio_file *f, |
52 | enum fio_ddir ddir) | |
2ba1c290 | 53 | { |
74776733 JA |
54 | uint64_t max_blocks; |
55 | uint64_t max_size; | |
2ba1c290 | 56 | |
ff58fced JA |
57 | assert(ddir_rw(ddir)); |
58 | ||
d9dd70f7 JA |
59 | /* |
60 | * Hmm, should we make sure that ->io_size <= ->real_file_size? | |
79591fa9 | 61 | * -> not for now since there is code assuming it could go either. |
d9dd70f7 JA |
62 | */ |
63 | max_size = f->io_size; | |
64 | if (max_size > f->real_file_size) | |
65 | max_size = f->real_file_size; | |
66 | ||
ed335855 SN |
67 | if (td->o.zone_range) |
68 | max_size = td->o.zone_range; | |
69 | ||
0412d12e JE |
70 | if (td->o.min_bs[ddir] > td->o.ba[ddir]) |
71 | max_size -= td->o.min_bs[ddir] - td->o.ba[ddir]; | |
72 | ||
1ae83d45 | 73 | max_blocks = max_size / (uint64_t) td->o.ba[ddir]; |
2ba1c290 JA |
74 | if (!max_blocks) |
75 | return 0; | |
76 | ||
67778e88 | 77 | return max_blocks; |
2ba1c290 JA |
78 | } |
79 | ||
1ae83d45 JA |
80 | struct rand_off { |
81 | struct flist_head list; | |
82 | uint64_t off; | |
83 | }; | |
84 | ||
e25839d4 | 85 | static int __get_next_rand_offset(struct thread_data *td, struct fio_file *f, |
e0a04ac1 JA |
86 | enum fio_ddir ddir, uint64_t *b, |
87 | uint64_t lastb) | |
ec4015da | 88 | { |
6f49f8bc | 89 | uint64_t r; |
5e0baa7f | 90 | |
c3546b53 JA |
91 | if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE || |
92 | td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE64) { | |
6f49f8bc | 93 | |
d6b72507 | 94 | r = __rand(&td->random_state); |
8055e41d | 95 | |
4b91ee8f | 96 | dprint(FD_RANDOM, "off rand %llu\n", (unsigned long long) r); |
8055e41d | 97 | |
e0a04ac1 | 98 | *b = lastb * (r / (rand_max(&td->random_state) + 1.0)); |
51ede0b1 | 99 | } else { |
8055e41d | 100 | uint64_t off = 0; |
43c63a78 | 101 | |
967d1b63 JA |
102 | assert(fio_file_lfsr(f)); |
103 | ||
6f49f8bc | 104 | if (lfsr_next(&f->lfsr, &off)) |
8055e41d | 105 | return 1; |
ec4015da | 106 | |
8055e41d JA |
107 | *b = off; |
108 | } | |
0ce8b119 | 109 | |
ec4015da | 110 | /* |
51ede0b1 | 111 | * if we are not maintaining a random map, we are done. |
ec4015da | 112 | */ |
51ede0b1 JA |
113 | if (!file_randommap(td, f)) |
114 | goto ret; | |
43c63a78 JA |
115 | |
116 | /* | |
51ede0b1 | 117 | * calculate map offset and check if it's free |
43c63a78 | 118 | */ |
51ede0b1 JA |
119 | if (random_map_free(f, *b)) |
120 | goto ret; | |
121 | ||
4b91ee8f JA |
122 | dprint(FD_RANDOM, "get_next_rand_offset: offset %llu busy\n", |
123 | (unsigned long long) *b); | |
51ede0b1 | 124 | |
7ebd796f | 125 | *b = axmap_next_free(f->io_axmap, *b); |
51ede0b1 JA |
126 | if (*b == (uint64_t) -1ULL) |
127 | return 1; | |
0ce8b119 JA |
128 | ret: |
129 | return 0; | |
ec4015da JA |
130 | } |
131 | ||
925fee33 JA |
132 | static int __get_next_rand_offset_zipf(struct thread_data *td, |
133 | struct fio_file *f, enum fio_ddir ddir, | |
1ae83d45 | 134 | uint64_t *b) |
e25839d4 | 135 | { |
9c6f6316 | 136 | *b = zipf_next(&f->zipf); |
e25839d4 JA |
137 | return 0; |
138 | } | |
139 | ||
925fee33 JA |
140 | static int __get_next_rand_offset_pareto(struct thread_data *td, |
141 | struct fio_file *f, enum fio_ddir ddir, | |
1ae83d45 | 142 | uint64_t *b) |
925fee33 | 143 | { |
9c6f6316 | 144 | *b = pareto_next(&f->zipf); |
925fee33 JA |
145 | return 0; |
146 | } | |
147 | ||
56d9fa4b JA |
148 | static int __get_next_rand_offset_gauss(struct thread_data *td, |
149 | struct fio_file *f, enum fio_ddir ddir, | |
150 | uint64_t *b) | |
151 | { | |
152 | *b = gauss_next(&f->gauss); | |
153 | return 0; | |
154 | } | |
155 | ||
59466396 JA |
156 | static int __get_next_rand_offset_zoned_abs(struct thread_data *td, |
157 | struct fio_file *f, | |
158 | enum fio_ddir ddir, uint64_t *b) | |
159 | { | |
160 | struct zone_split_index *zsi; | |
e3c8c108 | 161 | uint64_t lastb, send, stotal; |
59466396 JA |
162 | unsigned int v; |
163 | ||
164 | lastb = last_block(td, f, ddir); | |
165 | if (!lastb) | |
166 | return 1; | |
167 | ||
168 | if (!td->o.zone_split_nr[ddir]) { | |
169 | bail: | |
170 | return __get_next_rand_offset(td, f, ddir, b, lastb); | |
171 | } | |
172 | ||
173 | /* | |
174 | * Generate a value, v, between 1 and 100, both inclusive | |
175 | */ | |
176 | v = rand32_between(&td->zone_state, 1, 100); | |
177 | ||
e3c8c108 JA |
178 | /* |
179 | * Find our generated table. 'send' is the end block of this zone, | |
180 | * 'stotal' is our start offset. | |
181 | */ | |
59466396 JA |
182 | zsi = &td->zone_state_index[ddir][v - 1]; |
183 | stotal = zsi->size_prev / td->o.ba[ddir]; | |
184 | send = zsi->size / td->o.ba[ddir]; | |
185 | ||
186 | /* | |
187 | * Should never happen | |
188 | */ | |
189 | if (send == -1U) { | |
264e3d30 | 190 | if (!fio_did_warn(FIO_WARN_ZONED_BUG)) |
59466396 | 191 | log_err("fio: bug in zoned generation\n"); |
59466396 JA |
192 | goto bail; |
193 | } else if (send > lastb) { | |
194 | /* | |
195 | * This happens if the user specifies ranges that exceed | |
196 | * the file/device size. We can't handle that gracefully, | |
197 | * so error and exit. | |
198 | */ | |
199 | log_err("fio: zoned_abs sizes exceed file size\n"); | |
200 | return 1; | |
201 | } | |
202 | ||
203 | /* | |
e3c8c108 | 204 | * Generate index from 0..send-stotal |
59466396 | 205 | */ |
e3c8c108 | 206 | if (__get_next_rand_offset(td, f, ddir, b, send - stotal) == 1) |
59466396 JA |
207 | return 1; |
208 | ||
e3c8c108 | 209 | *b += stotal; |
59466396 JA |
210 | return 0; |
211 | } | |
212 | ||
e0a04ac1 JA |
213 | static int __get_next_rand_offset_zoned(struct thread_data *td, |
214 | struct fio_file *f, enum fio_ddir ddir, | |
215 | uint64_t *b) | |
216 | { | |
217 | unsigned int v, send, stotal; | |
218 | uint64_t offset, lastb; | |
e0a04ac1 JA |
219 | struct zone_split_index *zsi; |
220 | ||
221 | lastb = last_block(td, f, ddir); | |
222 | if (!lastb) | |
223 | return 1; | |
224 | ||
225 | if (!td->o.zone_split_nr[ddir]) { | |
226 | bail: | |
227 | return __get_next_rand_offset(td, f, ddir, b, lastb); | |
228 | } | |
229 | ||
230 | /* | |
231 | * Generate a value, v, between 1 and 100, both inclusive | |
232 | */ | |
36dd3379 | 233 | v = rand32_between(&td->zone_state, 1, 100); |
e0a04ac1 JA |
234 | |
235 | zsi = &td->zone_state_index[ddir][v - 1]; | |
236 | stotal = zsi->size_perc_prev; | |
237 | send = zsi->size_perc; | |
238 | ||
239 | /* | |
240 | * Should never happen | |
241 | */ | |
242 | if (send == -1U) { | |
264e3d30 | 243 | if (!fio_did_warn(FIO_WARN_ZONED_BUG)) |
e0a04ac1 | 244 | log_err("fio: bug in zoned generation\n"); |
e0a04ac1 JA |
245 | goto bail; |
246 | } | |
247 | ||
248 | /* | |
249 | * 'send' is some percentage below or equal to 100 that | |
250 | * marks the end of the current IO range. 'stotal' marks | |
251 | * the start, in percent. | |
252 | */ | |
253 | if (stotal) | |
254 | offset = stotal * lastb / 100ULL; | |
255 | else | |
256 | offset = 0; | |
257 | ||
258 | lastb = lastb * (send - stotal) / 100ULL; | |
259 | ||
260 | /* | |
261 | * Generate index from 0..send-of-lastb | |
262 | */ | |
263 | if (__get_next_rand_offset(td, f, ddir, b, lastb) == 1) | |
264 | return 1; | |
265 | ||
266 | /* | |
267 | * Add our start offset, if any | |
268 | */ | |
269 | if (offset) | |
270 | *b += offset; | |
271 | ||
272 | return 0; | |
273 | } | |
56d9fa4b | 274 | |
1ae83d45 JA |
275 | static int flist_cmp(void *data, struct flist_head *a, struct flist_head *b) |
276 | { | |
277 | struct rand_off *r1 = flist_entry(a, struct rand_off, list); | |
278 | struct rand_off *r2 = flist_entry(b, struct rand_off, list); | |
279 | ||
280 | return r1->off - r2->off; | |
281 | } | |
282 | ||
283 | static int get_off_from_method(struct thread_data *td, struct fio_file *f, | |
284 | enum fio_ddir ddir, uint64_t *b) | |
e25839d4 | 285 | { |
e0a04ac1 JA |
286 | if (td->o.random_distribution == FIO_RAND_DIST_RANDOM) { |
287 | uint64_t lastb; | |
288 | ||
289 | lastb = last_block(td, f, ddir); | |
290 | if (!lastb) | |
291 | return 1; | |
292 | ||
293 | return __get_next_rand_offset(td, f, ddir, b, lastb); | |
294 | } else if (td->o.random_distribution == FIO_RAND_DIST_ZIPF) | |
e25839d4 | 295 | return __get_next_rand_offset_zipf(td, f, ddir, b); |
925fee33 JA |
296 | else if (td->o.random_distribution == FIO_RAND_DIST_PARETO) |
297 | return __get_next_rand_offset_pareto(td, f, ddir, b); | |
56d9fa4b JA |
298 | else if (td->o.random_distribution == FIO_RAND_DIST_GAUSS) |
299 | return __get_next_rand_offset_gauss(td, f, ddir, b); | |
e0a04ac1 JA |
300 | else if (td->o.random_distribution == FIO_RAND_DIST_ZONED) |
301 | return __get_next_rand_offset_zoned(td, f, ddir, b); | |
59466396 JA |
302 | else if (td->o.random_distribution == FIO_RAND_DIST_ZONED_ABS) |
303 | return __get_next_rand_offset_zoned_abs(td, f, ddir, b); | |
e25839d4 JA |
304 | |
305 | log_err("fio: unknown random distribution: %d\n", td->o.random_distribution); | |
306 | return 1; | |
307 | } | |
308 | ||
bcd5abfa JA |
309 | /* |
310 | * Sort the reads for a verify phase in batches of verifysort_nr, if | |
311 | * specified. | |
312 | */ | |
e39c0676 | 313 | static inline bool should_sort_io(struct thread_data *td) |
bcd5abfa JA |
314 | { |
315 | if (!td->o.verifysort_nr || !td->o.do_verify) | |
e39c0676 | 316 | return false; |
bcd5abfa | 317 | if (!td_random(td)) |
e39c0676 | 318 | return false; |
bcd5abfa | 319 | if (td->runstate != TD_VERIFYING) |
e39c0676 | 320 | return false; |
c3546b53 JA |
321 | if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE || |
322 | td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE64) | |
e39c0676 | 323 | return false; |
bcd5abfa | 324 | |
e39c0676 | 325 | return true; |
bcd5abfa JA |
326 | } |
327 | ||
e39c0676 | 328 | static bool should_do_random(struct thread_data *td, enum fio_ddir ddir) |
211c9b89 JA |
329 | { |
330 | unsigned int v; | |
211c9b89 | 331 | |
d9472271 | 332 | if (td->o.perc_rand[ddir] == 100) |
e39c0676 | 333 | return true; |
211c9b89 | 334 | |
36dd3379 | 335 | v = rand32_between(&td->seq_rand_state[ddir], 1, 100); |
211c9b89 | 336 | |
d9472271 | 337 | return v <= td->o.perc_rand[ddir]; |
211c9b89 JA |
338 | } |
339 | ||
1ae83d45 JA |
340 | static int get_next_rand_offset(struct thread_data *td, struct fio_file *f, |
341 | enum fio_ddir ddir, uint64_t *b) | |
342 | { | |
343 | struct rand_off *r; | |
344 | int i, ret = 1; | |
345 | ||
bcd5abfa | 346 | if (!should_sort_io(td)) |
1ae83d45 JA |
347 | return get_off_from_method(td, f, ddir, b); |
348 | ||
349 | if (!flist_empty(&td->next_rand_list)) { | |
1ae83d45 | 350 | fetch: |
9342d5f8 | 351 | r = flist_first_entry(&td->next_rand_list, struct rand_off, list); |
1ae83d45 JA |
352 | flist_del(&r->list); |
353 | *b = r->off; | |
354 | free(r); | |
355 | return 0; | |
356 | } | |
357 | ||
358 | for (i = 0; i < td->o.verifysort_nr; i++) { | |
359 | r = malloc(sizeof(*r)); | |
360 | ||
361 | ret = get_off_from_method(td, f, ddir, &r->off); | |
362 | if (ret) { | |
363 | free(r); | |
364 | break; | |
365 | } | |
366 | ||
367 | flist_add(&r->list, &td->next_rand_list); | |
368 | } | |
369 | ||
370 | if (ret && !i) | |
371 | return ret; | |
372 | ||
373 | assert(!flist_empty(&td->next_rand_list)); | |
374 | flist_sort(NULL, &td->next_rand_list, flist_cmp); | |
375 | goto fetch; | |
376 | } | |
377 | ||
0bcf41cd JA |
378 | static void loop_cache_invalidate(struct thread_data *td, struct fio_file *f) |
379 | { | |
380 | struct thread_options *o = &td->o; | |
381 | ||
382 | if (o->invalidate_cache && !o->odirect) { | |
383 | int fio_unused ret; | |
384 | ||
385 | ret = file_invalidate_cache(td, f); | |
386 | } | |
387 | } | |
388 | ||
38dad62d | 389 | static int get_next_rand_block(struct thread_data *td, struct fio_file *f, |
1ae83d45 | 390 | enum fio_ddir ddir, uint64_t *b) |
38dad62d | 391 | { |
c04e4661 DE |
392 | if (!get_next_rand_offset(td, f, ddir, b)) |
393 | return 0; | |
394 | ||
8c07860d JA |
395 | if (td->o.time_based || |
396 | (td->o.file_service_type & __FIO_FSERVICE_NONUNIFORM)) { | |
33c48814 | 397 | fio_file_reset(td, f); |
c04e4661 DE |
398 | if (!get_next_rand_offset(td, f, ddir, b)) |
399 | return 0; | |
0bcf41cd | 400 | loop_cache_invalidate(td, f); |
38dad62d JA |
401 | } |
402 | ||
c04e4661 | 403 | dprint(FD_IO, "%s: rand offset failed, last=%llu, size=%llu\n", |
f1dfb668 | 404 | f->file_name, (unsigned long long) f->last_pos[ddir], |
4b91ee8f | 405 | (unsigned long long) f->real_file_size); |
c04e4661 | 406 | return 1; |
38dad62d JA |
407 | } |
408 | ||
37cf9e3c | 409 | static int get_next_seq_offset(struct thread_data *td, struct fio_file *f, |
1ae83d45 | 410 | enum fio_ddir ddir, uint64_t *offset) |
38dad62d | 411 | { |
ac002339 JA |
412 | struct thread_options *o = &td->o; |
413 | ||
ff58fced JA |
414 | assert(ddir_rw(ddir)); |
415 | ||
17373ce2 JA |
416 | /* |
417 | * If we reach the end for a time based run, reset us back to 0 | |
418 | * and invalidate the cache, if we need to. | |
419 | */ | |
f1dfb668 | 420 | if (f->last_pos[ddir] >= f->io_size + get_start_offset(td, f) && |
19ddc35b | 421 | o->time_based) { |
c89daa4a | 422 | f->last_pos[ddir] = f->file_offset; |
0bcf41cd | 423 | loop_cache_invalidate(td, f); |
19ddc35b | 424 | } |
c04e4661 | 425 | |
f1dfb668 | 426 | if (f->last_pos[ddir] < f->real_file_size) { |
1ae83d45 | 427 | uint64_t pos; |
059b0802 | 428 | |
69b98f11 JA |
429 | /* |
430 | * Only rewind if we already hit the end | |
431 | */ | |
432 | if (f->last_pos[ddir] == f->file_offset && | |
433 | f->file_offset && o->ddir_seq_add < 0) { | |
c22825bb JA |
434 | if (f->real_file_size > f->io_size) |
435 | f->last_pos[ddir] = f->io_size; | |
436 | else | |
437 | f->last_pos[ddir] = f->real_file_size; | |
438 | } | |
a66da7a2 | 439 | |
f1dfb668 | 440 | pos = f->last_pos[ddir] - f->file_offset; |
ac002339 JA |
441 | if (pos && o->ddir_seq_add) { |
442 | pos += o->ddir_seq_add; | |
443 | ||
444 | /* | |
445 | * If we reach beyond the end of the file | |
446 | * with holed IO, wrap around to the | |
b0a84f48 JA |
447 | * beginning again. If we're doing backwards IO, |
448 | * wrap to the end. | |
ac002339 | 449 | */ |
b0a84f48 JA |
450 | if (pos >= f->real_file_size) { |
451 | if (o->ddir_seq_add > 0) | |
452 | pos = f->file_offset; | |
c22825bb JA |
453 | else { |
454 | if (f->real_file_size > f->io_size) | |
455 | pos = f->io_size; | |
456 | else | |
457 | pos = f->real_file_size; | |
458 | ||
459 | pos += o->ddir_seq_add; | |
460 | } | |
b0a84f48 | 461 | } |
ac002339 | 462 | } |
059b0802 | 463 | |
37cf9e3c | 464 | *offset = pos; |
38dad62d JA |
465 | return 0; |
466 | } | |
467 | ||
468 | return 1; | |
469 | } | |
470 | ||
471 | static int get_next_block(struct thread_data *td, struct io_u *io_u, | |
6aca9b3d | 472 | enum fio_ddir ddir, int rw_seq, |
ec370c22 | 473 | bool *is_random) |
38dad62d JA |
474 | { |
475 | struct fio_file *f = io_u->file; | |
1ae83d45 | 476 | uint64_t b, offset; |
38dad62d JA |
477 | int ret; |
478 | ||
ff58fced JA |
479 | assert(ddir_rw(ddir)); |
480 | ||
37cf9e3c JA |
481 | b = offset = -1ULL; |
482 | ||
38dad62d | 483 | if (rw_seq) { |
211c9b89 | 484 | if (td_random(td)) { |
6aca9b3d | 485 | if (should_do_random(td, ddir)) { |
211c9b89 | 486 | ret = get_next_rand_block(td, f, ddir, &b); |
ec370c22 | 487 | *is_random = true; |
6aca9b3d | 488 | } else { |
ec370c22 | 489 | *is_random = false; |
1651e431 | 490 | io_u_set(td, io_u, IO_U_F_BUSY_OK); |
211c9b89 JA |
491 | ret = get_next_seq_offset(td, f, ddir, &offset); |
492 | if (ret) | |
493 | ret = get_next_rand_block(td, f, ddir, &b); | |
494 | } | |
6aca9b3d | 495 | } else { |
ec370c22 | 496 | *is_random = false; |
37cf9e3c | 497 | ret = get_next_seq_offset(td, f, ddir, &offset); |
6aca9b3d | 498 | } |
38dad62d | 499 | } else { |
1651e431 | 500 | io_u_set(td, io_u, IO_U_F_BUSY_OK); |
ec370c22 | 501 | *is_random = false; |
38dad62d JA |
502 | |
503 | if (td->o.rw_seq == RW_SEQ_SEQ) { | |
37cf9e3c | 504 | ret = get_next_seq_offset(td, f, ddir, &offset); |
6aca9b3d | 505 | if (ret) { |
37cf9e3c | 506 | ret = get_next_rand_block(td, f, ddir, &b); |
ec370c22 | 507 | *is_random = false; |
6aca9b3d | 508 | } |
38dad62d | 509 | } else if (td->o.rw_seq == RW_SEQ_IDENT) { |
f1dfb668 JA |
510 | if (f->last_start[ddir] != -1ULL) |
511 | offset = f->last_start[ddir] - f->file_offset; | |
38dad62d | 512 | else |
37cf9e3c | 513 | offset = 0; |
38dad62d JA |
514 | ret = 0; |
515 | } else { | |
516 | log_err("fio: unknown rw_seq=%d\n", td->o.rw_seq); | |
517 | ret = 1; | |
518 | } | |
519 | } | |
6d68b997 | 520 | |
37cf9e3c JA |
521 | if (!ret) { |
522 | if (offset != -1ULL) | |
523 | io_u->offset = offset; | |
524 | else if (b != -1ULL) | |
525 | io_u->offset = b * td->o.ba[ddir]; | |
526 | else { | |
4e0a8fa2 | 527 | log_err("fio: bug in offset generation: offset=%llu, b=%llu\n", (unsigned long long) offset, (unsigned long long) b); |
37cf9e3c JA |
528 | ret = 1; |
529 | } | |
530 | } | |
531 | ||
38dad62d JA |
532 | return ret; |
533 | } | |
534 | ||
10ba535a JA |
535 | /* |
536 | * For random io, generate a random new block and see if it's used. Repeat | |
537 | * until we find a free one. For sequential io, just return the end of | |
538 | * the last io issued. | |
539 | */ | |
e8fb335e | 540 | static int get_next_offset(struct thread_data *td, struct io_u *io_u, |
ec370c22 | 541 | bool *is_random) |
10ba535a | 542 | { |
9bf2061e | 543 | struct fio_file *f = io_u->file; |
4ba66134 | 544 | enum fio_ddir ddir = io_u->ddir; |
38dad62d | 545 | int rw_seq_hit = 0; |
10ba535a | 546 | |
ff58fced JA |
547 | assert(ddir_rw(ddir)); |
548 | ||
38dad62d JA |
549 | if (td->o.ddir_seq_nr && !--td->ddir_seq_nr) { |
550 | rw_seq_hit = 1; | |
5736c10d | 551 | td->ddir_seq_nr = td->o.ddir_seq_nr; |
38dad62d | 552 | } |
211097b2 | 553 | |
6aca9b3d | 554 | if (get_next_block(td, io_u, ddir, rw_seq_hit, is_random)) |
38dad62d | 555 | return 1; |
10ba535a | 556 | |
009bd847 JA |
557 | if (io_u->offset >= f->io_size) { |
558 | dprint(FD_IO, "get_next_offset: offset %llu >= io_size %llu\n", | |
4b91ee8f JA |
559 | (unsigned long long) io_u->offset, |
560 | (unsigned long long) f->io_size); | |
009bd847 JA |
561 | return 1; |
562 | } | |
563 | ||
564 | io_u->offset += f->file_offset; | |
2ba1c290 JA |
565 | if (io_u->offset >= f->real_file_size) { |
566 | dprint(FD_IO, "get_next_offset: offset %llu >= size %llu\n", | |
4b91ee8f JA |
567 | (unsigned long long) io_u->offset, |
568 | (unsigned long long) f->real_file_size); | |
10ba535a | 569 | return 1; |
2ba1c290 | 570 | } |
10ba535a JA |
571 | |
572 | return 0; | |
573 | } | |
574 | ||
e39c0676 JA |
575 | static inline bool io_u_fits(struct thread_data *td, struct io_u *io_u, |
576 | unsigned int buflen) | |
79944128 JA |
577 | { |
578 | struct fio_file *f = io_u->file; | |
579 | ||
bedc9dc2 | 580 | return io_u->offset + buflen <= f->io_size + get_start_offset(td, f); |
79944128 JA |
581 | } |
582 | ||
e8fb335e | 583 | static unsigned int get_next_buflen(struct thread_data *td, struct io_u *io_u, |
ec370c22 | 584 | bool is_random) |
10ba535a | 585 | { |
6aca9b3d | 586 | int ddir = io_u->ddir; |
24d23ca7 | 587 | unsigned int buflen = 0; |
f3059de1 | 588 | unsigned int minbs, maxbs; |
3dd29f7c | 589 | uint64_t frand_max, r; |
7c961359 | 590 | bool power_2; |
10ba535a | 591 | |
9ee1c647 | 592 | assert(ddir_rw(ddir)); |
6aca9b3d JA |
593 | |
594 | if (td->o.bs_is_seq_rand) | |
ec370c22 | 595 | ddir = is_random ? DDIR_WRITE : DDIR_READ; |
ff58fced | 596 | |
f3059de1 JA |
597 | minbs = td->o.min_bs[ddir]; |
598 | maxbs = td->o.max_bs[ddir]; | |
599 | ||
79944128 JA |
600 | if (minbs == maxbs) |
601 | return minbs; | |
602 | ||
52c58027 JA |
603 | /* |
604 | * If we can't satisfy the min block size from here, then fail | |
605 | */ | |
606 | if (!io_u_fits(td, io_u, minbs)) | |
607 | return 0; | |
608 | ||
2f282cec | 609 | frand_max = rand_max(&td->bsrange_state[ddir]); |
79944128 | 610 | do { |
2f282cec | 611 | r = __rand(&td->bsrange_state[ddir]); |
4c07ad86 | 612 | |
720e84ad | 613 | if (!td->o.bssplit_nr[ddir]) { |
f3059de1 | 614 | buflen = 1 + (unsigned int) ((double) maxbs * |
c3546b53 | 615 | (r / (frand_max + 1.0))); |
f3059de1 JA |
616 | if (buflen < minbs) |
617 | buflen = minbs; | |
5ec10eaa | 618 | } else { |
3dd29f7c | 619 | long long perc = 0; |
564ca972 JA |
620 | unsigned int i; |
621 | ||
720e84ad JA |
622 | for (i = 0; i < td->o.bssplit_nr[ddir]; i++) { |
623 | struct bssplit *bsp = &td->o.bssplit[ddir][i]; | |
564ca972 JA |
624 | |
625 | buflen = bsp->bs; | |
626 | perc += bsp->perc; | |
3dd29f7c JA |
627 | if (!perc) |
628 | break; | |
629 | if ((r / perc <= frand_max / 100ULL) && | |
79944128 | 630 | io_u_fits(td, io_u, buflen)) |
564ca972 JA |
631 | break; |
632 | } | |
633 | } | |
79944128 | 634 | |
17a6b702 PL |
635 | power_2 = is_power_of_2(minbs); |
636 | if (!td->o.bs_unaligned && power_2) | |
7c306bb1 | 637 | buflen &= ~(minbs - 1); |
17a6b702 PL |
638 | else if (!td->o.bs_unaligned && !power_2) |
639 | buflen -= buflen % minbs; | |
79944128 | 640 | } while (!io_u_fits(td, io_u, buflen)); |
6a5e6884 | 641 | |
10ba535a JA |
642 | return buflen; |
643 | } | |
644 | ||
afe24a5a JA |
645 | static void set_rwmix_bytes(struct thread_data *td) |
646 | { | |
afe24a5a JA |
647 | unsigned int diff; |
648 | ||
649 | /* | |
650 | * we do time or byte based switch. this is needed because | |
651 | * buffered writes may issue a lot quicker than they complete, | |
652 | * whereas reads do not. | |
653 | */ | |
e47f799f | 654 | diff = td->o.rwmix[td->rwmix_ddir ^ 1]; |
04c540d9 | 655 | td->rwmix_issues = (td->io_issues[td->rwmix_ddir] * diff) / 100; |
e47f799f JA |
656 | } |
657 | ||
658 | static inline enum fio_ddir get_rand_ddir(struct thread_data *td) | |
659 | { | |
660 | unsigned int v; | |
e47f799f | 661 | |
36dd3379 | 662 | v = rand32_between(&td->rwmix_state, 1, 100); |
4c07ad86 | 663 | |
04c540d9 | 664 | if (v <= td->o.rwmix[DDIR_READ]) |
e47f799f JA |
665 | return DDIR_READ; |
666 | ||
667 | return DDIR_WRITE; | |
afe24a5a JA |
668 | } |
669 | ||
0d593542 | 670 | int io_u_quiesce(struct thread_data *td) |
002e7183 | 671 | { |
0d593542 JA |
672 | int completed = 0; |
673 | ||
002e7183 JA |
674 | /* |
675 | * We are going to sleep, ensure that we flush anything pending as | |
676 | * not to skew our latency numbers. | |
677 | * | |
678 | * Changed to only monitor 'in flight' requests here instead of the | |
679 | * td->cur_depth, b/c td->cur_depth does not accurately represent | |
680 | * io's that have been actually submitted to an async engine, | |
681 | * and cur_depth is meaningless for sync engines. | |
682 | */ | |
9cc80b6d JA |
683 | if (td->io_u_queued || td->cur_depth) { |
684 | int fio_unused ret; | |
685 | ||
686 | ret = td_io_commit(td); | |
687 | } | |
688 | ||
002e7183 | 689 | while (td->io_u_in_flight) { |
89fd0573 | 690 | int ret; |
002e7183 | 691 | |
55312f9f | 692 | ret = io_u_queued_complete(td, 1); |
0d593542 JA |
693 | if (ret > 0) |
694 | completed += ret; | |
002e7183 | 695 | } |
0d593542 | 696 | |
6be06c46 JA |
697 | if (td->flags & TD_F_REGROW_LOGS) |
698 | regrow_logs(td); | |
699 | ||
0d593542 | 700 | return completed; |
002e7183 JA |
701 | } |
702 | ||
581e7141 JA |
703 | static enum fio_ddir rate_ddir(struct thread_data *td, enum fio_ddir ddir) |
704 | { | |
705 | enum fio_ddir odir = ddir ^ 1; | |
b5407f8b | 706 | uint64_t usec; |
90eff1c9 | 707 | uint64_t now; |
581e7141 | 708 | |
ff58fced | 709 | assert(ddir_rw(ddir)); |
50a8ce86 | 710 | now = utime_since_now(&td->start); |
ff58fced | 711 | |
50a8ce86 D |
712 | /* |
713 | * if rate_next_io_time is in the past, need to catch up to rate | |
714 | */ | |
715 | if (td->rate_next_io_time[ddir] <= now) | |
581e7141 JA |
716 | return ddir; |
717 | ||
718 | /* | |
50a8ce86 | 719 | * We are ahead of rate in this direction. See if we |
581e7141 JA |
720 | * should switch. |
721 | */ | |
315fcfec | 722 | if (td_rw(td) && td->o.rwmix[odir]) { |
581e7141 | 723 | /* |
50a8ce86 | 724 | * Other direction is behind rate, switch |
581e7141 | 725 | */ |
50a8ce86 | 726 | if (td->rate_next_io_time[odir] <= now) |
581e7141 JA |
727 | return odir; |
728 | ||
729 | /* | |
395feabb JA |
730 | * Both directions are ahead of rate. sleep the min, |
731 | * switch if necessary | |
581e7141 | 732 | */ |
50a8ce86 | 733 | if (td->rate_next_io_time[ddir] <= |
395feabb | 734 | td->rate_next_io_time[odir]) { |
50a8ce86 | 735 | usec = td->rate_next_io_time[ddir] - now; |
581e7141 | 736 | } else { |
50a8ce86 | 737 | usec = td->rate_next_io_time[odir] - now; |
581e7141 JA |
738 | ddir = odir; |
739 | } | |
740 | } else | |
50a8ce86 | 741 | usec = td->rate_next_io_time[ddir] - now; |
581e7141 | 742 | |
a9da8ab2 JA |
743 | if (td->o.io_submit_mode == IO_MODE_INLINE) |
744 | io_u_quiesce(td); | |
78c1eda5 | 745 | |
1a9bf814 | 746 | usec_sleep(td, usec); |
581e7141 JA |
747 | return ddir; |
748 | } | |
749 | ||
10ba535a JA |
750 | /* |
751 | * Return the data direction for the next io_u. If the job is a | |
752 | * mixed read/write workload, check the rwmix cycle and switch if | |
753 | * necessary. | |
754 | */ | |
1e97cce9 | 755 | static enum fio_ddir get_rw_ddir(struct thread_data *td) |
10ba535a | 756 | { |
581e7141 JA |
757 | enum fio_ddir ddir; |
758 | ||
5f9099ea | 759 | /* |
f6860972 TK |
760 | * See if it's time to fsync/fdatasync/sync_file_range first, |
761 | * and if not then move on to check regular I/Os. | |
5f9099ea | 762 | */ |
f6860972 TK |
763 | if (should_fsync(td)) { |
764 | if (td->o.fsync_blocks && td->io_issues[DDIR_WRITE] && | |
765 | !(td->io_issues[DDIR_WRITE] % td->o.fsync_blocks)) | |
766 | return DDIR_SYNC; | |
767 | ||
768 | if (td->o.fdatasync_blocks && td->io_issues[DDIR_WRITE] && | |
769 | !(td->io_issues[DDIR_WRITE] % td->o.fdatasync_blocks)) | |
770 | return DDIR_DATASYNC; | |
771 | ||
772 | if (td->sync_file_range_nr && td->io_issues[DDIR_WRITE] && | |
773 | !(td->io_issues[DDIR_WRITE] % td->sync_file_range_nr)) | |
774 | return DDIR_SYNC_FILE_RANGE; | |
775 | } | |
44f29692 | 776 | |
10ba535a | 777 | if (td_rw(td)) { |
10ba535a JA |
778 | /* |
779 | * Check if it's time to seed a new data direction. | |
780 | */ | |
e4928662 | 781 | if (td->io_issues[td->rwmix_ddir] >= td->rwmix_issues) { |
e47f799f JA |
782 | /* |
783 | * Put a top limit on how many bytes we do for | |
784 | * one data direction, to avoid overflowing the | |
785 | * ranges too much | |
786 | */ | |
787 | ddir = get_rand_ddir(td); | |
e47f799f JA |
788 | |
789 | if (ddir != td->rwmix_ddir) | |
790 | set_rwmix_bytes(td); | |
791 | ||
792 | td->rwmix_ddir = ddir; | |
10ba535a | 793 | } |
581e7141 | 794 | ddir = td->rwmix_ddir; |
10ba535a | 795 | } else if (td_read(td)) |
581e7141 | 796 | ddir = DDIR_READ; |
6eaf09d6 | 797 | else if (td_write(td)) |
581e7141 | 798 | ddir = DDIR_WRITE; |
5c8e84ca | 799 | else if (td_trim(td)) |
6eaf09d6 | 800 | ddir = DDIR_TRIM; |
5c8e84ca TK |
801 | else |
802 | ddir = DDIR_INVAL; | |
581e7141 JA |
803 | |
804 | td->rwmix_ddir = rate_ddir(td, ddir); | |
805 | return td->rwmix_ddir; | |
10ba535a JA |
806 | } |
807 | ||
1ef2b6be JA |
808 | static void set_rw_ddir(struct thread_data *td, struct io_u *io_u) |
809 | { | |
0e4dd95c DE |
810 | enum fio_ddir ddir = get_rw_ddir(td); |
811 | ||
82a90686 | 812 | if (td_trimwrite(td)) { |
0e4dd95c DE |
813 | struct fio_file *f = io_u->file; |
814 | if (f->last_pos[DDIR_WRITE] == f->last_pos[DDIR_TRIM]) | |
815 | ddir = DDIR_TRIM; | |
816 | else | |
817 | ddir = DDIR_WRITE; | |
818 | } | |
819 | ||
820 | io_u->ddir = io_u->acct_ddir = ddir; | |
1ef2b6be | 821 | |
9b87f09b | 822 | if (io_u->ddir == DDIR_WRITE && td_ioengine_flagged(td, FIO_BARRIER) && |
1ef2b6be JA |
823 | td->o.barrier_blocks && |
824 | !(td->io_issues[DDIR_WRITE] % td->o.barrier_blocks) && | |
825 | td->io_issues[DDIR_WRITE]) | |
1651e431 | 826 | io_u_set(td, io_u, IO_U_F_BARRIER); |
1ef2b6be JA |
827 | } |
828 | ||
e8462bd8 | 829 | void put_file_log(struct thread_data *td, struct fio_file *f) |
60f2c658 | 830 | { |
71b84caa | 831 | unsigned int ret = put_file(td, f); |
60f2c658 JA |
832 | |
833 | if (ret) | |
834 | td_verror(td, ret, "file close"); | |
835 | } | |
836 | ||
10ba535a JA |
837 | void put_io_u(struct thread_data *td, struct io_u *io_u) |
838 | { | |
a9da8ab2 JA |
839 | if (td->parent) |
840 | td = td->parent; | |
841 | ||
e8462bd8 JA |
842 | td_io_u_lock(td); |
843 | ||
f8b0bd10 | 844 | if (io_u->file && !(io_u->flags & IO_U_F_NO_FILE_PUT)) |
60f2c658 | 845 | put_file_log(td, io_u->file); |
f8b0bd10 | 846 | |
10ba535a | 847 | io_u->file = NULL; |
1651e431 | 848 | io_u_set(td, io_u, IO_U_F_FREE); |
d7ee2a7d | 849 | |
a9da8ab2 | 850 | if (io_u->flags & IO_U_F_IN_CUR_DEPTH) { |
0c41214f | 851 | td->cur_depth--; |
a9da8ab2 JA |
852 | assert(!(td->flags & TD_F_CHILD)); |
853 | } | |
2ae0b204 | 854 | io_u_qpush(&td->io_u_freelist, io_u); |
e8462bd8 | 855 | td_io_u_free_notify(td); |
564de8d1 | 856 | td_io_u_unlock(td); |
10ba535a JA |
857 | } |
858 | ||
f2bba182 RR |
859 | void clear_io_u(struct thread_data *td, struct io_u *io_u) |
860 | { | |
1651e431 | 861 | io_u_clear(td, io_u, IO_U_F_FLIGHT); |
f2bba182 RR |
862 | put_io_u(td, io_u); |
863 | } | |
864 | ||
755200a3 JA |
865 | void requeue_io_u(struct thread_data *td, struct io_u **io_u) |
866 | { | |
867 | struct io_u *__io_u = *io_u; | |
bcd5abfa | 868 | enum fio_ddir ddir = acct_ddir(__io_u); |
755200a3 | 869 | |
465221b0 JA |
870 | dprint(FD_IO, "requeue %p\n", __io_u); |
871 | ||
a9da8ab2 JA |
872 | if (td->parent) |
873 | td = td->parent; | |
874 | ||
e8462bd8 JA |
875 | td_io_u_lock(td); |
876 | ||
1651e431 | 877 | io_u_set(td, __io_u, IO_U_F_FREE); |
bcd5abfa JA |
878 | if ((__io_u->flags & IO_U_F_FLIGHT) && ddir_rw(ddir)) |
879 | td->io_issues[ddir]--; | |
5ec10eaa | 880 | |
1651e431 | 881 | io_u_clear(td, __io_u, IO_U_F_FLIGHT); |
a9da8ab2 | 882 | if (__io_u->flags & IO_U_F_IN_CUR_DEPTH) { |
0c41214f | 883 | td->cur_depth--; |
a9da8ab2 JA |
884 | assert(!(td->flags & TD_F_CHILD)); |
885 | } | |
2ae0b204 JA |
886 | |
887 | io_u_rpush(&td->io_u_requeues, __io_u); | |
a9da8ab2 | 888 | td_io_u_free_notify(td); |
564de8d1 | 889 | td_io_u_unlock(td); |
755200a3 JA |
890 | *io_u = NULL; |
891 | } | |
892 | ||
224b3093 | 893 | static void __fill_io_u_zone(struct thread_data *td, struct io_u *io_u) |
894 | { | |
895 | struct fio_file *f = io_u->file; | |
896 | ||
897 | /* | |
898 | * See if it's time to switch to a new zone | |
899 | */ | |
900 | if (td->zone_bytes >= td->o.zone_size && td->o.zone_skip) { | |
901 | td->zone_bytes = 0; | |
902 | f->file_offset += td->o.zone_range + td->o.zone_skip; | |
903 | ||
904 | /* | |
905 | * Wrap from the beginning, if we exceed the file size | |
906 | */ | |
907 | if (f->file_offset >= f->real_file_size) | |
908 | f->file_offset = f->real_file_size - f->file_offset; | |
909 | f->last_pos[io_u->ddir] = f->file_offset; | |
910 | td->io_skip_bytes += td->o.zone_skip; | |
911 | } | |
912 | ||
913 | /* | |
914 | * If zone_size > zone_range, then maintain the same zone until | |
915 | * zone_bytes >= zone_size. | |
916 | */ | |
917 | if (f->last_pos[io_u->ddir] >= (f->file_offset + td->o.zone_range)) { | |
918 | dprint(FD_IO, "io_u maintain zone offset=%" PRIu64 "/last_pos=%" PRIu64 "\n", | |
919 | f->file_offset, f->last_pos[io_u->ddir]); | |
920 | f->last_pos[io_u->ddir] = f->file_offset; | |
921 | } | |
922 | ||
923 | /* | |
924 | * For random: if 'norandommap' is not set and zone_size > zone_range, | |
925 | * map needs to be reset as it's done with zone_range everytime. | |
926 | */ | |
927 | if ((td->zone_bytes % td->o.zone_range) == 0) { | |
928 | fio_file_reset(td, f); | |
929 | } | |
930 | } | |
931 | ||
9bf2061e | 932 | static int fill_io_u(struct thread_data *td, struct io_u *io_u) |
10ba535a | 933 | { |
ec370c22 | 934 | bool is_random; |
6aca9b3d | 935 | |
9b87f09b | 936 | if (td_ioengine_flagged(td, FIO_NOIO)) |
b4c5e1ac JA |
937 | goto out; |
938 | ||
1ef2b6be | 939 | set_rw_ddir(td, io_u); |
5f9099ea | 940 | |
87dc1ab1 | 941 | /* |
ff58fced | 942 | * fsync() or fdatasync() or trim etc, we are done |
87dc1ab1 | 943 | */ |
ff58fced | 944 | if (!ddir_rw(io_u->ddir)) |
c38e9468 | 945 | goto out; |
a00735e6 | 946 | |
48f5abd3 | 947 | /* |
224b3093 | 948 | * When file is zoned zone_range is always positive |
48f5abd3 | 949 | */ |
224b3093 | 950 | if (td->o.zone_range) { |
951 | __fill_io_u_zone(td, io_u); | |
48f5abd3 JA |
952 | } |
953 | ||
10ba535a | 954 | /* |
c685b5b2 JA |
955 | * No log, let the seq/rand engine retrieve the next buflen and |
956 | * position. | |
10ba535a | 957 | */ |
6aca9b3d | 958 | if (get_next_offset(td, io_u, &is_random)) { |
2ba1c290 | 959 | dprint(FD_IO, "io_u %p, failed getting offset\n", io_u); |
bca4ed4d | 960 | return 1; |
2ba1c290 | 961 | } |
10ba535a | 962 | |
6aca9b3d | 963 | io_u->buflen = get_next_buflen(td, io_u, is_random); |
2ba1c290 JA |
964 | if (!io_u->buflen) { |
965 | dprint(FD_IO, "io_u %p, failed getting buflen\n", io_u); | |
bca4ed4d | 966 | return 1; |
2ba1c290 | 967 | } |
bca4ed4d | 968 | |
2ba1c290 | 969 | if (io_u->offset + io_u->buflen > io_u->file->real_file_size) { |
e5f9a813 RE |
970 | dprint(FD_IO, "io_u %p, off=0x%llx + len=0x%lx exceeds file size=0x%llx\n", |
971 | io_u, | |
4b91ee8f JA |
972 | (unsigned long long) io_u->offset, io_u->buflen, |
973 | (unsigned long long) io_u->file->real_file_size); | |
6a5e6884 | 974 | return 1; |
2ba1c290 | 975 | } |
6a5e6884 | 976 | |
bca4ed4d JA |
977 | /* |
978 | * mark entry before potentially trimming io_u | |
979 | */ | |
303032ae | 980 | if (td_random(td) && file_randommap(td, io_u->file)) |
9bf2061e | 981 | mark_random_map(td, io_u); |
bca4ed4d | 982 | |
c38e9468 | 983 | out: |
e5f9a813 | 984 | dprint_io_u(io_u, "fill"); |
d9d91e39 | 985 | td->zone_bytes += io_u->buflen; |
bca4ed4d | 986 | return 0; |
10ba535a JA |
987 | } |
988 | ||
6cc0e5aa | 989 | static void __io_u_mark_map(uint64_t *map, unsigned int nr) |
838bc709 | 990 | { |
2b13e716 | 991 | int idx = 0; |
838bc709 JA |
992 | |
993 | switch (nr) { | |
994 | default: | |
2b13e716 | 995 | idx = 6; |
838bc709 JA |
996 | break; |
997 | case 33 ... 64: | |
2b13e716 | 998 | idx = 5; |
838bc709 JA |
999 | break; |
1000 | case 17 ... 32: | |
2b13e716 | 1001 | idx = 4; |
838bc709 JA |
1002 | break; |
1003 | case 9 ... 16: | |
2b13e716 | 1004 | idx = 3; |
838bc709 JA |
1005 | break; |
1006 | case 5 ... 8: | |
2b13e716 | 1007 | idx = 2; |
838bc709 JA |
1008 | break; |
1009 | case 1 ... 4: | |
2b13e716 | 1010 | idx = 1; |
838bc709 JA |
1011 | case 0: |
1012 | break; | |
1013 | } | |
1014 | ||
2b13e716 | 1015 | map[idx]++; |
838bc709 JA |
1016 | } |
1017 | ||
1018 | void io_u_mark_submit(struct thread_data *td, unsigned int nr) | |
1019 | { | |
1020 | __io_u_mark_map(td->ts.io_u_submit, nr); | |
1021 | td->ts.total_submit++; | |
1022 | } | |
1023 | ||
1024 | void io_u_mark_complete(struct thread_data *td, unsigned int nr) | |
1025 | { | |
1026 | __io_u_mark_map(td->ts.io_u_complete, nr); | |
1027 | td->ts.total_complete++; | |
1028 | } | |
1029 | ||
d8005759 | 1030 | void io_u_mark_depth(struct thread_data *td, unsigned int nr) |
71619dc2 | 1031 | { |
2b13e716 | 1032 | int idx = 0; |
71619dc2 JA |
1033 | |
1034 | switch (td->cur_depth) { | |
1035 | default: | |
2b13e716 | 1036 | idx = 6; |
a783e61a | 1037 | break; |
71619dc2 | 1038 | case 32 ... 63: |
2b13e716 | 1039 | idx = 5; |
a783e61a | 1040 | break; |
71619dc2 | 1041 | case 16 ... 31: |
2b13e716 | 1042 | idx = 4; |
a783e61a | 1043 | break; |
71619dc2 | 1044 | case 8 ... 15: |
2b13e716 | 1045 | idx = 3; |
a783e61a | 1046 | break; |
71619dc2 | 1047 | case 4 ... 7: |
2b13e716 | 1048 | idx = 2; |
a783e61a | 1049 | break; |
71619dc2 | 1050 | case 2 ... 3: |
2b13e716 | 1051 | idx = 1; |
71619dc2 JA |
1052 | case 1: |
1053 | break; | |
1054 | } | |
1055 | ||
2b13e716 | 1056 | td->ts.io_u_map[idx] += nr; |
71619dc2 JA |
1057 | } |
1058 | ||
d6bb626e | 1059 | static void io_u_mark_lat_nsec(struct thread_data *td, unsigned long long nsec) |
04a0feae | 1060 | { |
2b13e716 | 1061 | int idx = 0; |
04a0feae | 1062 | |
d6bb626e VF |
1063 | assert(nsec < 1000); |
1064 | ||
1065 | switch (nsec) { | |
1066 | case 750 ... 999: | |
1067 | idx = 9; | |
1068 | break; | |
1069 | case 500 ... 749: | |
1070 | idx = 8; | |
1071 | break; | |
1072 | case 250 ... 499: | |
1073 | idx = 7; | |
1074 | break; | |
1075 | case 100 ... 249: | |
1076 | idx = 6; | |
1077 | break; | |
1078 | case 50 ... 99: | |
1079 | idx = 5; | |
1080 | break; | |
1081 | case 20 ... 49: | |
1082 | idx = 4; | |
1083 | break; | |
1084 | case 10 ... 19: | |
1085 | idx = 3; | |
1086 | break; | |
1087 | case 4 ... 9: | |
1088 | idx = 2; | |
1089 | break; | |
1090 | case 2 ... 3: | |
1091 | idx = 1; | |
1092 | case 0 ... 1: | |
1093 | break; | |
1094 | } | |
1095 | ||
1096 | assert(idx < FIO_IO_U_LAT_N_NR); | |
1097 | td->ts.io_u_lat_n[idx]++; | |
1098 | } | |
1099 | ||
1100 | static void io_u_mark_lat_usec(struct thread_data *td, unsigned long long usec) | |
1101 | { | |
1102 | int idx = 0; | |
1103 | ||
1104 | assert(usec < 1000 && usec >= 1); | |
04a0feae JA |
1105 | |
1106 | switch (usec) { | |
1107 | case 750 ... 999: | |
2b13e716 | 1108 | idx = 9; |
04a0feae JA |
1109 | break; |
1110 | case 500 ... 749: | |
2b13e716 | 1111 | idx = 8; |
04a0feae JA |
1112 | break; |
1113 | case 250 ... 499: | |
2b13e716 | 1114 | idx = 7; |
04a0feae JA |
1115 | break; |
1116 | case 100 ... 249: | |
2b13e716 | 1117 | idx = 6; |
04a0feae JA |
1118 | break; |
1119 | case 50 ... 99: | |
2b13e716 | 1120 | idx = 5; |
04a0feae JA |
1121 | break; |
1122 | case 20 ... 49: | |
2b13e716 | 1123 | idx = 4; |
04a0feae JA |
1124 | break; |
1125 | case 10 ... 19: | |
2b13e716 | 1126 | idx = 3; |
04a0feae JA |
1127 | break; |
1128 | case 4 ... 9: | |
2b13e716 | 1129 | idx = 2; |
04a0feae JA |
1130 | break; |
1131 | case 2 ... 3: | |
2b13e716 | 1132 | idx = 1; |
04a0feae JA |
1133 | case 0 ... 1: |
1134 | break; | |
1135 | } | |
1136 | ||
2b13e716 JA |
1137 | assert(idx < FIO_IO_U_LAT_U_NR); |
1138 | td->ts.io_u_lat_u[idx]++; | |
04a0feae JA |
1139 | } |
1140 | ||
d6bb626e | 1141 | static void io_u_mark_lat_msec(struct thread_data *td, unsigned long long msec) |
ec118304 | 1142 | { |
2b13e716 | 1143 | int idx = 0; |
ec118304 | 1144 | |
d6bb626e VF |
1145 | assert(msec >= 1); |
1146 | ||
ec118304 JA |
1147 | switch (msec) { |
1148 | default: | |
2b13e716 | 1149 | idx = 11; |
04a0feae | 1150 | break; |
8abdce66 | 1151 | case 1000 ... 1999: |
2b13e716 | 1152 | idx = 10; |
04a0feae | 1153 | break; |
8abdce66 | 1154 | case 750 ... 999: |
2b13e716 | 1155 | idx = 9; |
04a0feae | 1156 | break; |
8abdce66 | 1157 | case 500 ... 749: |
2b13e716 | 1158 | idx = 8; |
04a0feae | 1159 | break; |
8abdce66 | 1160 | case 250 ... 499: |
2b13e716 | 1161 | idx = 7; |
04a0feae | 1162 | break; |
8abdce66 | 1163 | case 100 ... 249: |
2b13e716 | 1164 | idx = 6; |
04a0feae | 1165 | break; |
8abdce66 | 1166 | case 50 ... 99: |
2b13e716 | 1167 | idx = 5; |
04a0feae | 1168 | break; |
8abdce66 | 1169 | case 20 ... 49: |
2b13e716 | 1170 | idx = 4; |
04a0feae | 1171 | break; |
8abdce66 | 1172 | case 10 ... 19: |
2b13e716 | 1173 | idx = 3; |
04a0feae | 1174 | break; |
8abdce66 | 1175 | case 4 ... 9: |
2b13e716 | 1176 | idx = 2; |
04a0feae | 1177 | break; |
ec118304 | 1178 | case 2 ... 3: |
2b13e716 | 1179 | idx = 1; |
ec118304 JA |
1180 | case 0 ... 1: |
1181 | break; | |
1182 | } | |
1183 | ||
2b13e716 JA |
1184 | assert(idx < FIO_IO_U_LAT_M_NR); |
1185 | td->ts.io_u_lat_m[idx]++; | |
04a0feae JA |
1186 | } |
1187 | ||
d6bb626e | 1188 | static void io_u_mark_latency(struct thread_data *td, unsigned long long nsec) |
04a0feae | 1189 | { |
d6bb626e VF |
1190 | if (nsec < 1000) |
1191 | io_u_mark_lat_nsec(td, nsec); | |
1192 | else if (nsec < 1000000) | |
1193 | io_u_mark_lat_usec(td, nsec / 1000); | |
04a0feae | 1194 | else |
d6bb626e | 1195 | io_u_mark_lat_msec(td, nsec / 1000000); |
ec118304 JA |
1196 | } |
1197 | ||
8c07860d JA |
1198 | static unsigned int __get_next_fileno_rand(struct thread_data *td) |
1199 | { | |
1200 | unsigned long fileno; | |
1201 | ||
1202 | if (td->o.file_service_type == FIO_FSERVICE_RANDOM) { | |
1203 | uint64_t frand_max = rand_max(&td->next_file_state); | |
1204 | unsigned long r; | |
1205 | ||
1206 | r = __rand(&td->next_file_state); | |
1207 | return (unsigned int) ((double) td->o.nr_files | |
1208 | * (r / (frand_max + 1.0))); | |
1209 | } | |
1210 | ||
1211 | if (td->o.file_service_type == FIO_FSERVICE_ZIPF) | |
1212 | fileno = zipf_next(&td->next_file_zipf); | |
1213 | else if (td->o.file_service_type == FIO_FSERVICE_PARETO) | |
1214 | fileno = pareto_next(&td->next_file_zipf); | |
1215 | else if (td->o.file_service_type == FIO_FSERVICE_GAUSS) | |
1216 | fileno = gauss_next(&td->next_file_gauss); | |
1217 | else { | |
1218 | log_err("fio: bad file service type: %d\n", td->o.file_service_type); | |
1219 | assert(0); | |
1220 | return 0; | |
1221 | } | |
1222 | ||
1223 | return fileno >> FIO_FSERVICE_SHIFT; | |
1224 | } | |
1225 | ||
0aabe160 JA |
1226 | /* |
1227 | * Get next file to service by choosing one at random | |
1228 | */ | |
2cc52930 JA |
1229 | static struct fio_file *get_next_file_rand(struct thread_data *td, |
1230 | enum fio_file_flags goodf, | |
d6aed795 | 1231 | enum fio_file_flags badf) |
0aabe160 | 1232 | { |
0aabe160 | 1233 | struct fio_file *f; |
1c178180 | 1234 | int fno; |
0aabe160 JA |
1235 | |
1236 | do { | |
87b10676 | 1237 | int opened = 0; |
4c07ad86 | 1238 | |
8c07860d | 1239 | fno = __get_next_fileno_rand(td); |
7c83c089 | 1240 | |
126d65c6 | 1241 | f = td->files[fno]; |
d6aed795 | 1242 | if (fio_file_done(f)) |
059e63c0 | 1243 | continue; |
1c178180 | 1244 | |
d6aed795 | 1245 | if (!fio_file_open(f)) { |
87b10676 JA |
1246 | int err; |
1247 | ||
002fe734 JA |
1248 | if (td->nr_open_files >= td->o.open_files) |
1249 | return ERR_PTR(-EBUSY); | |
1250 | ||
87b10676 JA |
1251 | err = td_io_open_file(td, f); |
1252 | if (err) | |
1253 | continue; | |
1254 | opened = 1; | |
1255 | } | |
1256 | ||
2ba1c290 JA |
1257 | if ((!goodf || (f->flags & goodf)) && !(f->flags & badf)) { |
1258 | dprint(FD_FILE, "get_next_file_rand: %p\n", f); | |
0aabe160 | 1259 | return f; |
2ba1c290 | 1260 | } |
87b10676 JA |
1261 | if (opened) |
1262 | td_io_close_file(td, f); | |
0aabe160 JA |
1263 | } while (1); |
1264 | } | |
1265 | ||
1266 | /* | |
1267 | * Get next file to service by doing round robin between all available ones | |
1268 | */ | |
1c178180 JA |
1269 | static struct fio_file *get_next_file_rr(struct thread_data *td, int goodf, |
1270 | int badf) | |
3d7c391d JA |
1271 | { |
1272 | unsigned int old_next_file = td->next_file; | |
1273 | struct fio_file *f; | |
1274 | ||
1275 | do { | |
87b10676 JA |
1276 | int opened = 0; |
1277 | ||
126d65c6 | 1278 | f = td->files[td->next_file]; |
3d7c391d JA |
1279 | |
1280 | td->next_file++; | |
2dc1bbeb | 1281 | if (td->next_file >= td->o.nr_files) |
3d7c391d JA |
1282 | td->next_file = 0; |
1283 | ||
87b10676 | 1284 | dprint(FD_FILE, "trying file %s %x\n", f->file_name, f->flags); |
d6aed795 | 1285 | if (fio_file_done(f)) { |
d5ed68ea | 1286 | f = NULL; |
059e63c0 | 1287 | continue; |
d5ed68ea | 1288 | } |
059e63c0 | 1289 | |
d6aed795 | 1290 | if (!fio_file_open(f)) { |
87b10676 JA |
1291 | int err; |
1292 | ||
002fe734 JA |
1293 | if (td->nr_open_files >= td->o.open_files) |
1294 | return ERR_PTR(-EBUSY); | |
1295 | ||
87b10676 | 1296 | err = td_io_open_file(td, f); |
b5696bfc JA |
1297 | if (err) { |
1298 | dprint(FD_FILE, "error %d on open of %s\n", | |
1299 | err, f->file_name); | |
87c27b45 | 1300 | f = NULL; |
87b10676 | 1301 | continue; |
b5696bfc | 1302 | } |
87b10676 JA |
1303 | opened = 1; |
1304 | } | |
1305 | ||
0b9d69ec JA |
1306 | dprint(FD_FILE, "goodf=%x, badf=%x, ff=%x\n", goodf, badf, |
1307 | f->flags); | |
1c178180 | 1308 | if ((!goodf || (f->flags & goodf)) && !(f->flags & badf)) |
3d7c391d JA |
1309 | break; |
1310 | ||
87b10676 JA |
1311 | if (opened) |
1312 | td_io_close_file(td, f); | |
1313 | ||
3d7c391d JA |
1314 | f = NULL; |
1315 | } while (td->next_file != old_next_file); | |
1316 | ||
2ba1c290 | 1317 | dprint(FD_FILE, "get_next_file_rr: %p\n", f); |
3d7c391d JA |
1318 | return f; |
1319 | } | |
1320 | ||
7eb36574 | 1321 | static struct fio_file *__get_next_file(struct thread_data *td) |
bdb4e2e9 | 1322 | { |
1907dbc6 JA |
1323 | struct fio_file *f; |
1324 | ||
2dc1bbeb | 1325 | assert(td->o.nr_files <= td->files_index); |
1c178180 | 1326 | |
b5696bfc | 1327 | if (td->nr_done_files >= td->o.nr_files) { |
5ec10eaa JA |
1328 | dprint(FD_FILE, "get_next_file: nr_open=%d, nr_done=%d," |
1329 | " nr_files=%d\n", td->nr_open_files, | |
1330 | td->nr_done_files, | |
1331 | td->o.nr_files); | |
bdb4e2e9 | 1332 | return NULL; |
2ba1c290 | 1333 | } |
bdb4e2e9 | 1334 | |
1907dbc6 | 1335 | f = td->file_service_file; |
d6aed795 | 1336 | if (f && fio_file_open(f) && !fio_file_closing(f)) { |
a086c257 JA |
1337 | if (td->o.file_service_type == FIO_FSERVICE_SEQ) |
1338 | goto out; | |
1339 | if (td->file_service_left--) | |
1340 | goto out; | |
1341 | } | |
1907dbc6 | 1342 | |
a086c257 JA |
1343 | if (td->o.file_service_type == FIO_FSERVICE_RR || |
1344 | td->o.file_service_type == FIO_FSERVICE_SEQ) | |
d6aed795 | 1345 | f = get_next_file_rr(td, FIO_FILE_open, FIO_FILE_closing); |
bdb4e2e9 | 1346 | else |
d6aed795 | 1347 | f = get_next_file_rand(td, FIO_FILE_open, FIO_FILE_closing); |
1907dbc6 | 1348 | |
002fe734 JA |
1349 | if (IS_ERR(f)) |
1350 | return f; | |
1351 | ||
1907dbc6 JA |
1352 | td->file_service_file = f; |
1353 | td->file_service_left = td->file_service_nr - 1; | |
2ba1c290 | 1354 | out: |
0dac421f JA |
1355 | if (f) |
1356 | dprint(FD_FILE, "get_next_file: %p [%s]\n", f, f->file_name); | |
1357 | else | |
1358 | dprint(FD_FILE, "get_next_file: NULL\n"); | |
1907dbc6 | 1359 | return f; |
bdb4e2e9 JA |
1360 | } |
1361 | ||
7eb36574 JA |
1362 | static struct fio_file *get_next_file(struct thread_data *td) |
1363 | { | |
7eb36574 JA |
1364 | return __get_next_file(td); |
1365 | } | |
1366 | ||
002fe734 | 1367 | static long set_io_u_file(struct thread_data *td, struct io_u *io_u) |
429f6675 JA |
1368 | { |
1369 | struct fio_file *f; | |
1370 | ||
1371 | do { | |
1372 | f = get_next_file(td); | |
002fe734 JA |
1373 | if (IS_ERR_OR_NULL(f)) |
1374 | return PTR_ERR(f); | |
429f6675 | 1375 | |
429f6675 JA |
1376 | io_u->file = f; |
1377 | get_file(f); | |
1378 | ||
1379 | if (!fill_io_u(td, io_u)) | |
1380 | break; | |
1381 | ||
b5696bfc | 1382 | put_file_log(td, f); |
429f6675 | 1383 | td_io_close_file(td, f); |
b5696bfc | 1384 | io_u->file = NULL; |
8c07860d JA |
1385 | if (td->o.file_service_type & __FIO_FSERVICE_NONUNIFORM) |
1386 | fio_file_reset(td, f); | |
1387 | else { | |
1388 | fio_file_set_done(f); | |
1389 | td->nr_done_files++; | |
1390 | dprint(FD_FILE, "%s: is done (%d of %d)\n", f->file_name, | |
0b9d69ec | 1391 | td->nr_done_files, td->o.nr_files); |
8c07860d | 1392 | } |
429f6675 JA |
1393 | } while (1); |
1394 | ||
1395 | return 0; | |
1396 | } | |
1397 | ||
3e260a46 | 1398 | static void lat_fatal(struct thread_data *td, struct io_completion_data *icd, |
c3a32714 | 1399 | unsigned long long tnsec, unsigned long long max_nsec) |
3e260a46 JA |
1400 | { |
1401 | if (!td->error) | |
c3a32714 | 1402 | log_err("fio: latency of %llu nsec exceeds specified max (%llu nsec)\n", tnsec, max_nsec); |
3e260a46 JA |
1403 | td_verror(td, ETIMEDOUT, "max latency exceeded"); |
1404 | icd->error = ETIMEDOUT; | |
1405 | } | |
1406 | ||
1407 | static void lat_new_cycle(struct thread_data *td) | |
1408 | { | |
1409 | fio_gettime(&td->latency_ts, NULL); | |
1410 | td->latency_ios = ddir_rw_sum(td->io_blocks); | |
1411 | td->latency_failed = 0; | |
1412 | } | |
1413 | ||
1414 | /* | |
1415 | * We had an IO outside the latency target. Reduce the queue depth. If we | |
1416 | * are at QD=1, then it's time to give up. | |
1417 | */ | |
e39c0676 | 1418 | static bool __lat_target_failed(struct thread_data *td) |
3e260a46 JA |
1419 | { |
1420 | if (td->latency_qd == 1) | |
e39c0676 | 1421 | return true; |
3e260a46 JA |
1422 | |
1423 | td->latency_qd_high = td->latency_qd; | |
6bb58215 JA |
1424 | |
1425 | if (td->latency_qd == td->latency_qd_low) | |
1426 | td->latency_qd_low--; | |
1427 | ||
3e260a46 JA |
1428 | td->latency_qd = (td->latency_qd + td->latency_qd_low) / 2; |
1429 | ||
1430 | dprint(FD_RATE, "Ramped down: %d %d %d\n", td->latency_qd_low, td->latency_qd, td->latency_qd_high); | |
1431 | ||
1432 | /* | |
1433 | * When we ramp QD down, quiesce existing IO to prevent | |
1434 | * a storm of ramp downs due to pending higher depth. | |
1435 | */ | |
1436 | io_u_quiesce(td); | |
1437 | lat_new_cycle(td); | |
e39c0676 | 1438 | return false; |
3e260a46 JA |
1439 | } |
1440 | ||
e39c0676 | 1441 | static bool lat_target_failed(struct thread_data *td) |
3e260a46 JA |
1442 | { |
1443 | if (td->o.latency_percentile.u.f == 100.0) | |
1444 | return __lat_target_failed(td); | |
1445 | ||
1446 | td->latency_failed++; | |
e39c0676 | 1447 | return false; |
3e260a46 JA |
1448 | } |
1449 | ||
1450 | void lat_target_init(struct thread_data *td) | |
1451 | { | |
6bb58215 JA |
1452 | td->latency_end_run = 0; |
1453 | ||
3e260a46 JA |
1454 | if (td->o.latency_target) { |
1455 | dprint(FD_RATE, "Latency target=%llu\n", td->o.latency_target); | |
1456 | fio_gettime(&td->latency_ts, NULL); | |
1457 | td->latency_qd = 1; | |
1458 | td->latency_qd_high = td->o.iodepth; | |
1459 | td->latency_qd_low = 1; | |
1460 | td->latency_ios = ddir_rw_sum(td->io_blocks); | |
1461 | } else | |
1462 | td->latency_qd = td->o.iodepth; | |
1463 | } | |
1464 | ||
6bb58215 JA |
1465 | void lat_target_reset(struct thread_data *td) |
1466 | { | |
1467 | if (!td->latency_end_run) | |
1468 | lat_target_init(td); | |
1469 | } | |
1470 | ||
3e260a46 JA |
1471 | static void lat_target_success(struct thread_data *td) |
1472 | { | |
1473 | const unsigned int qd = td->latency_qd; | |
6bb58215 | 1474 | struct thread_options *o = &td->o; |
3e260a46 JA |
1475 | |
1476 | td->latency_qd_low = td->latency_qd; | |
1477 | ||
1478 | /* | |
1479 | * If we haven't failed yet, we double up to a failing value instead | |
1480 | * of bisecting from highest possible queue depth. If we have set | |
1481 | * a limit other than td->o.iodepth, bisect between that. | |
1482 | */ | |
6bb58215 | 1483 | if (td->latency_qd_high != o->iodepth) |
3e260a46 JA |
1484 | td->latency_qd = (td->latency_qd + td->latency_qd_high) / 2; |
1485 | else | |
1486 | td->latency_qd *= 2; | |
1487 | ||
6bb58215 JA |
1488 | if (td->latency_qd > o->iodepth) |
1489 | td->latency_qd = o->iodepth; | |
3e260a46 JA |
1490 | |
1491 | dprint(FD_RATE, "Ramped up: %d %d %d\n", td->latency_qd_low, td->latency_qd, td->latency_qd_high); | |
6bb58215 | 1492 | |
3e260a46 | 1493 | /* |
6bb58215 JA |
1494 | * Same as last one, we are done. Let it run a latency cycle, so |
1495 | * we get only the results from the targeted depth. | |
3e260a46 | 1496 | */ |
6bb58215 JA |
1497 | if (td->latency_qd == qd) { |
1498 | if (td->latency_end_run) { | |
1499 | dprint(FD_RATE, "We are done\n"); | |
1500 | td->done = 1; | |
1501 | } else { | |
1502 | dprint(FD_RATE, "Quiesce and final run\n"); | |
1503 | io_u_quiesce(td); | |
1504 | td->latency_end_run = 1; | |
1505 | reset_all_stats(td); | |
1506 | reset_io_stats(td); | |
1507 | } | |
1508 | } | |
3e260a46 JA |
1509 | |
1510 | lat_new_cycle(td); | |
1511 | } | |
1512 | ||
1513 | /* | |
1514 | * Check if we can bump the queue depth | |
1515 | */ | |
1516 | void lat_target_check(struct thread_data *td) | |
1517 | { | |
1518 | uint64_t usec_window; | |
1519 | uint64_t ios; | |
1520 | double success_ios; | |
1521 | ||
1522 | usec_window = utime_since_now(&td->latency_ts); | |
1523 | if (usec_window < td->o.latency_window) | |
1524 | return; | |
1525 | ||
1526 | ios = ddir_rw_sum(td->io_blocks) - td->latency_ios; | |
1527 | success_ios = (double) (ios - td->latency_failed) / (double) ios; | |
1528 | success_ios *= 100.0; | |
1529 | ||
1530 | dprint(FD_RATE, "Success rate: %.2f%% (target %.2f%%)\n", success_ios, td->o.latency_percentile.u.f); | |
1531 | ||
1532 | if (success_ios >= td->o.latency_percentile.u.f) | |
1533 | lat_target_success(td); | |
1534 | else | |
1535 | __lat_target_failed(td); | |
1536 | } | |
1537 | ||
1538 | /* | |
1539 | * If latency target is enabled, we might be ramping up or down and not | |
1540 | * using the full queue depth available. | |
1541 | */ | |
e39c0676 | 1542 | bool queue_full(const struct thread_data *td) |
3e260a46 JA |
1543 | { |
1544 | const int qempty = io_u_qempty(&td->io_u_freelist); | |
1545 | ||
1546 | if (qempty) | |
e39c0676 | 1547 | return true; |
3e260a46 | 1548 | if (!td->o.latency_target) |
e39c0676 | 1549 | return false; |
3e260a46 JA |
1550 | |
1551 | return td->cur_depth >= td->latency_qd; | |
1552 | } | |
429f6675 | 1553 | |
10ba535a JA |
1554 | struct io_u *__get_io_u(struct thread_data *td) |
1555 | { | |
0cae66f6 | 1556 | struct io_u *io_u = NULL; |
93b45bb2 | 1557 | int ret; |
10ba535a | 1558 | |
ca09be4b JA |
1559 | if (td->stop_io) |
1560 | return NULL; | |
1561 | ||
e8462bd8 JA |
1562 | td_io_u_lock(td); |
1563 | ||
1564 | again: | |
2ae0b204 JA |
1565 | if (!io_u_rempty(&td->io_u_requeues)) |
1566 | io_u = io_u_rpop(&td->io_u_requeues); | |
3e260a46 | 1567 | else if (!queue_full(td)) { |
2ae0b204 | 1568 | io_u = io_u_qpop(&td->io_u_freelist); |
10ba535a | 1569 | |
225ba9e3 | 1570 | io_u->file = NULL; |
6040dabc | 1571 | io_u->buflen = 0; |
10ba535a | 1572 | io_u->resid = 0; |
d7762cf8 | 1573 | io_u->end_io = NULL; |
755200a3 JA |
1574 | } |
1575 | ||
1576 | if (io_u) { | |
0c6e7517 | 1577 | assert(io_u->flags & IO_U_F_FREE); |
1651e431 | 1578 | io_u_clear(td, io_u, IO_U_F_FREE | IO_U_F_NO_FILE_PUT | |
f8b0bd10 JA |
1579 | IO_U_F_TRIMMED | IO_U_F_BARRIER | |
1580 | IO_U_F_VER_LIST); | |
0c6e7517 | 1581 | |
755200a3 | 1582 | io_u->error = 0; |
bcd5abfa | 1583 | io_u->acct_ddir = -1; |
10ba535a | 1584 | td->cur_depth++; |
a9da8ab2 | 1585 | assert(!(td->flags & TD_F_CHILD)); |
1651e431 | 1586 | io_u_set(td, io_u, IO_U_F_IN_CUR_DEPTH); |
f9401285 | 1587 | io_u->ipo = NULL; |
a9da8ab2 | 1588 | } else if (td_async_processing(td)) { |
1dec3e07 JA |
1589 | /* |
1590 | * We ran out, wait for async verify threads to finish and | |
1591 | * return one | |
1592 | */ | |
a9da8ab2 | 1593 | assert(!(td->flags & TD_F_CHILD)); |
93b45bb2 BVA |
1594 | ret = pthread_cond_wait(&td->free_cond, &td->io_u_lock); |
1595 | assert(ret == 0); | |
1dec3e07 | 1596 | goto again; |
10ba535a JA |
1597 | } |
1598 | ||
e8462bd8 | 1599 | td_io_u_unlock(td); |
10ba535a JA |
1600 | return io_u; |
1601 | } | |
1602 | ||
e39c0676 | 1603 | static bool check_get_trim(struct thread_data *td, struct io_u *io_u) |
10ba535a | 1604 | { |
d72be545 | 1605 | if (!(td->flags & TD_F_TRIM_BACKLOG)) |
e39c0676 | 1606 | return false; |
c9a73054 JA |
1607 | if (!td->trim_entries) |
1608 | return false; | |
d72be545 | 1609 | |
c9a73054 JA |
1610 | if (td->trim_batch) { |
1611 | td->trim_batch--; | |
1612 | if (get_next_trim(td, io_u)) | |
1613 | return true; | |
1614 | } else if (!(td->io_hist_len % td->o.trim_backlog) && | |
1615 | td->last_ddir != DDIR_READ) { | |
1616 | td->trim_batch = td->o.trim_batch; | |
1617 | if (!td->trim_batch) | |
1618 | td->trim_batch = td->o.trim_backlog; | |
1619 | if (get_next_trim(td, io_u)) | |
e39c0676 | 1620 | return true; |
2ba1c290 | 1621 | } |
10ba535a | 1622 | |
e39c0676 | 1623 | return false; |
0d29de83 JA |
1624 | } |
1625 | ||
e39c0676 | 1626 | static bool check_get_verify(struct thread_data *td, struct io_u *io_u) |
0d29de83 | 1627 | { |
d72be545 | 1628 | if (!(td->flags & TD_F_VER_BACKLOG)) |
e39c0676 | 1629 | return false; |
d72be545 JA |
1630 | |
1631 | if (td->io_hist_len) { | |
9e144189 JA |
1632 | int get_verify = 0; |
1633 | ||
d1ece0c7 | 1634 | if (td->verify_batch) |
9e144189 | 1635 | get_verify = 1; |
d1ece0c7 | 1636 | else if (!(td->io_hist_len % td->o.verify_backlog) && |
9e144189 JA |
1637 | td->last_ddir != DDIR_READ) { |
1638 | td->verify_batch = td->o.verify_batch; | |
f8a75c99 JA |
1639 | if (!td->verify_batch) |
1640 | td->verify_batch = td->o.verify_backlog; | |
9e144189 JA |
1641 | get_verify = 1; |
1642 | } | |
1643 | ||
d1ece0c7 JA |
1644 | if (get_verify && !get_next_verify(td, io_u)) { |
1645 | td->verify_batch--; | |
e39c0676 | 1646 | return true; |
d1ece0c7 | 1647 | } |
9e144189 JA |
1648 | } |
1649 | ||
e39c0676 | 1650 | return false; |
0d29de83 JA |
1651 | } |
1652 | ||
de789769 JA |
1653 | /* |
1654 | * Fill offset and start time into the buffer content, to prevent too | |
23f394d5 JA |
1655 | * easy compressible data for simple de-dupe attempts. Do this for every |
1656 | * 512b block in the range, since that should be the smallest block size | |
1657 | * we can expect from a device. | |
de789769 JA |
1658 | */ |
1659 | static void small_content_scramble(struct io_u *io_u) | |
1660 | { | |
319b073f | 1661 | unsigned int i, nr_blocks = io_u->buflen >> 9; |
23f394d5 | 1662 | unsigned int offset; |
319b073f JA |
1663 | uint64_t boffset, *iptr; |
1664 | char *p; | |
de789769 | 1665 | |
23f394d5 JA |
1666 | if (!nr_blocks) |
1667 | return; | |
1668 | ||
1669 | p = io_u->xfer_buf; | |
fba76ee8 | 1670 | boffset = io_u->offset; |
319b073f JA |
1671 | |
1672 | if (io_u->buf_filled_len) | |
1673 | io_u->buf_filled_len = 0; | |
1674 | ||
1675 | /* | |
1676 | * Generate random index between 0..7. We do chunks of 512b, if | |
1677 | * we assume a cacheline is 64 bytes, then we have 8 of those. | |
1678 | * Scramble content within the blocks in the same cacheline to | |
1679 | * speed things up. | |
1680 | */ | |
1681 | offset = (io_u->start_time.tv_nsec ^ boffset) & 7; | |
fad82f76 | 1682 | |
23f394d5 JA |
1683 | for (i = 0; i < nr_blocks; i++) { |
1684 | /* | |
319b073f JA |
1685 | * Fill offset into start of cacheline, time into end |
1686 | * of cacheline | |
23f394d5 | 1687 | */ |
319b073f JA |
1688 | iptr = (void *) p + (offset << 6); |
1689 | *iptr = boffset; | |
1690 | ||
1691 | iptr = (void *) p + 64 - 2 * sizeof(uint64_t); | |
1692 | iptr[0] = io_u->start_time.tv_sec; | |
1693 | iptr[1] = io_u->start_time.tv_nsec; | |
23f394d5 | 1694 | |
23f394d5 | 1695 | p += 512; |
fad82f76 | 1696 | boffset += 512; |
23f394d5 | 1697 | } |
de789769 JA |
1698 | } |
1699 | ||
0d29de83 JA |
1700 | /* |
1701 | * Return an io_u to be processed. Gets a buflen and offset, sets direction, | |
1702 | * etc. The returned io_u is fully ready to be prepped and submitted. | |
1703 | */ | |
1704 | struct io_u *get_io_u(struct thread_data *td) | |
1705 | { | |
1706 | struct fio_file *f; | |
1707 | struct io_u *io_u; | |
de789769 | 1708 | int do_scramble = 0; |
002fe734 | 1709 | long ret = 0; |
0d29de83 JA |
1710 | |
1711 | io_u = __get_io_u(td); | |
1712 | if (!io_u) { | |
1713 | dprint(FD_IO, "__get_io_u failed\n"); | |
1714 | return NULL; | |
1715 | } | |
1716 | ||
1717 | if (check_get_verify(td, io_u)) | |
1718 | goto out; | |
1719 | if (check_get_trim(td, io_u)) | |
1720 | goto out; | |
1721 | ||
755200a3 JA |
1722 | /* |
1723 | * from a requeue, io_u already setup | |
1724 | */ | |
1725 | if (io_u->file) | |
77f392bf | 1726 | goto out; |
755200a3 | 1727 | |
429f6675 JA |
1728 | /* |
1729 | * If using an iolog, grab next piece if any available. | |
1730 | */ | |
d72be545 | 1731 | if (td->flags & TD_F_READ_IOLOG) { |
429f6675 JA |
1732 | if (read_iolog_get(td, io_u)) |
1733 | goto err_put; | |
2ba1c290 | 1734 | } else if (set_io_u_file(td, io_u)) { |
002fe734 | 1735 | ret = -EBUSY; |
2ba1c290 | 1736 | dprint(FD_IO, "io_u %p, setting file failed\n", io_u); |
429f6675 | 1737 | goto err_put; |
2ba1c290 | 1738 | } |
5ec10eaa | 1739 | |
429f6675 | 1740 | f = io_u->file; |
002fe734 JA |
1741 | if (!f) { |
1742 | dprint(FD_IO, "io_u %p, setting file failed\n", io_u); | |
1743 | goto err_put; | |
1744 | } | |
1745 | ||
d6aed795 | 1746 | assert(fio_file_open(f)); |
97af62ce | 1747 | |
ff58fced | 1748 | if (ddir_rw(io_u->ddir)) { |
9b87f09b | 1749 | if (!io_u->buflen && !td_ioengine_flagged(td, FIO_NOIO)) { |
2ba1c290 | 1750 | dprint(FD_IO, "get_io_u: zero buflen on %p\n", io_u); |
429f6675 | 1751 | goto err_put; |
2ba1c290 | 1752 | } |
10ba535a | 1753 | |
f1dfb668 JA |
1754 | f->last_start[io_u->ddir] = io_u->offset; |
1755 | f->last_pos[io_u->ddir] = io_u->offset + io_u->buflen; | |
10ba535a | 1756 | |
fd68418e | 1757 | if (io_u->ddir == DDIR_WRITE) { |
d72be545 | 1758 | if (td->flags & TD_F_REFILL_BUFFERS) { |
9c42684e | 1759 | io_u_fill_buffer(td, io_u, |
1066358a | 1760 | td->o.min_bs[DDIR_WRITE], |
9e129577 | 1761 | io_u->buflen); |
ff441ae8 | 1762 | } else if ((td->flags & TD_F_SCRAMBLE_BUFFERS) && |
bedc9dc2 | 1763 | !(td->flags & TD_F_COMPRESS)) |
fd68418e | 1764 | do_scramble = 1; |
d72be545 | 1765 | if (td->flags & TD_F_VER_NONE) { |
629f1d71 JA |
1766 | populate_verify_io_u(td, io_u); |
1767 | do_scramble = 0; | |
1768 | } | |
fd68418e | 1769 | } else if (io_u->ddir == DDIR_READ) { |
cbe8d756 RR |
1770 | /* |
1771 | * Reset the buf_filled parameters so next time if the | |
1772 | * buffer is used for writes it is refilled. | |
1773 | */ | |
cbe8d756 RR |
1774 | io_u->buf_filled_len = 0; |
1775 | } | |
87dc1ab1 | 1776 | } |
10ba535a | 1777 | |
165faf16 JA |
1778 | /* |
1779 | * Set io data pointers. | |
1780 | */ | |
cec6b55d JA |
1781 | io_u->xfer_buf = io_u->buf; |
1782 | io_u->xfer_buflen = io_u->buflen; | |
5973cafb | 1783 | |
6ac7a331 | 1784 | out: |
0d29de83 | 1785 | assert(io_u->file); |
429f6675 | 1786 | if (!td_io_prep(td, io_u)) { |
3ecc8c67 | 1787 | if (!td->o.disable_lat) |
993bf48b | 1788 | fio_gettime(&io_u->start_time, NULL); |
03553853 | 1789 | |
de789769 JA |
1790 | if (do_scramble) |
1791 | small_content_scramble(io_u); | |
03553853 | 1792 | |
429f6675 | 1793 | return io_u; |
36167d82 | 1794 | } |
429f6675 | 1795 | err_put: |
2ba1c290 | 1796 | dprint(FD_IO, "get_io_u failed\n"); |
429f6675 | 1797 | put_io_u(td, io_u); |
002fe734 | 1798 | return ERR_PTR(ret); |
10ba535a JA |
1799 | } |
1800 | ||
a9da8ab2 | 1801 | static void __io_u_log_error(struct thread_data *td, struct io_u *io_u) |
5451792e | 1802 | { |
8b28bd41 | 1803 | enum error_type_bit eb = td_error_type(io_u->ddir, io_u->error); |
825f818e | 1804 | |
8b28bd41 DM |
1805 | if (td_non_fatal_error(td, eb, io_u->error) && !td->o.error_dump) |
1806 | return; | |
5451792e | 1807 | |
709c8313 RE |
1808 | log_err("fio: io_u error%s%s: %s: %s offset=%llu, buflen=%lu\n", |
1809 | io_u->file ? " on file " : "", | |
1810 | io_u->file ? io_u->file->file_name : "", | |
1811 | strerror(io_u->error), | |
1812 | io_ddir_name(io_u->ddir), | |
1813 | io_u->offset, io_u->xfer_buflen); | |
5451792e | 1814 | |
5ad7be56 KD |
1815 | if (td->io_ops->errdetails) { |
1816 | char *err = td->io_ops->errdetails(io_u); | |
1817 | ||
1818 | log_err("fio: %s\n", err); | |
1819 | free(err); | |
1820 | } | |
1821 | ||
5451792e JA |
1822 | if (!td->error) |
1823 | td_verror(td, io_u->error, "io_u error"); | |
1824 | } | |
1825 | ||
a9da8ab2 JA |
1826 | void io_u_log_error(struct thread_data *td, struct io_u *io_u) |
1827 | { | |
1828 | __io_u_log_error(td, io_u); | |
1829 | if (td->parent) | |
094e66cb | 1830 | __io_u_log_error(td->parent, io_u); |
a9da8ab2 JA |
1831 | } |
1832 | ||
e39c0676 | 1833 | static inline bool gtod_reduce(struct thread_data *td) |
aba6c951 | 1834 | { |
3ecc8c67 JA |
1835 | return (td->o.disable_clat && td->o.disable_slat && td->o.disable_bw) |
1836 | || td->o.gtod_reduce; | |
aba6c951 JA |
1837 | } |
1838 | ||
c8eeb9df JA |
1839 | static void account_io_completion(struct thread_data *td, struct io_u *io_u, |
1840 | struct io_completion_data *icd, | |
1841 | const enum fio_ddir idx, unsigned int bytes) | |
1842 | { | |
a9da8ab2 | 1843 | const int no_reduce = !gtod_reduce(td); |
d6bb626e | 1844 | unsigned long long llnsec = 0; |
c8eeb9df | 1845 | |
75dc383e JA |
1846 | if (td->parent) |
1847 | td = td->parent; | |
1848 | ||
132b1ee4 | 1849 | if (!td->o.stats || td_ioengine_flagged(td, FIO_NOSTATS)) |
8243be59 JA |
1850 | return; |
1851 | ||
a9da8ab2 | 1852 | if (no_reduce) |
d6bb626e | 1853 | llnsec = ntime_since(&io_u->issue_time, &icd->time); |
c8eeb9df JA |
1854 | |
1855 | if (!td->o.disable_lat) { | |
c3a32714 | 1856 | unsigned long long tnsec; |
c8eeb9df | 1857 | |
d6bb626e VF |
1858 | tnsec = ntime_since(&io_u->start_time, &icd->time); |
1859 | add_lat_sample(td, idx, tnsec, bytes, io_u->offset); | |
15501535 | 1860 | |
d4afedfd JA |
1861 | if (td->flags & TD_F_PROFILE_OPS) { |
1862 | struct prof_io_ops *ops = &td->prof_io_ops; | |
1863 | ||
1864 | if (ops->io_u_lat) | |
c3a32714 | 1865 | icd->error = ops->io_u_lat(td, tnsec); |
d4afedfd JA |
1866 | } |
1867 | ||
c3a32714 JA |
1868 | if (td->o.max_latency && tnsec > td->o.max_latency) |
1869 | lat_fatal(td, icd, tnsec, td->o.max_latency); | |
1870 | if (td->o.latency_target && tnsec > td->o.latency_target) { | |
3e260a46 | 1871 | if (lat_target_failed(td)) |
c3a32714 | 1872 | lat_fatal(td, icd, tnsec, td->o.latency_target); |
15501535 | 1873 | } |
c8eeb9df JA |
1874 | } |
1875 | ||
a47591e4 JA |
1876 | if (ddir_rw(idx)) { |
1877 | if (!td->o.disable_clat) { | |
d6bb626e VF |
1878 | add_clat_sample(td, idx, llnsec, bytes, io_u->offset); |
1879 | io_u_mark_latency(td, llnsec); | |
a47591e4 | 1880 | } |
c8eeb9df | 1881 | |
a47591e4 | 1882 | if (!td->o.disable_bw && per_unit_log(td->bw_log)) |
d6bb626e | 1883 | add_bw_sample(td, io_u, bytes, llnsec); |
c8eeb9df | 1884 | |
a47591e4 JA |
1885 | if (no_reduce && per_unit_log(td->iops_log)) |
1886 | add_iops_sample(td, io_u, bytes); | |
b2b3eefe JA |
1887 | } else if (ddir_sync(idx) && !td->o.disable_clat) |
1888 | add_sync_clat_sample(&td->ts, llnsec); | |
66347cfa DE |
1889 | |
1890 | if (td->ts.nr_block_infos && io_u->ddir == DDIR_TRIM) { | |
1891 | uint32_t *info = io_u_block_info(td, io_u); | |
1892 | if (BLOCK_INFO_STATE(*info) < BLOCK_STATE_TRIM_FAILURE) { | |
1893 | if (io_u->ddir == DDIR_TRIM) { | |
1894 | *info = BLOCK_INFO(BLOCK_STATE_TRIMMED, | |
1895 | BLOCK_INFO_TRIMS(*info) + 1); | |
1896 | } else if (io_u->ddir == DDIR_WRITE) { | |
1897 | *info = BLOCK_INFO_SET_STATE(BLOCK_STATE_WRITTEN, | |
1898 | *info); | |
1899 | } | |
1900 | } | |
1901 | } | |
c8eeb9df JA |
1902 | } |
1903 | ||
94a6e1bb JA |
1904 | static void file_log_write_comp(const struct thread_data *td, struct fio_file *f, |
1905 | uint64_t offset, unsigned int bytes) | |
1906 | { | |
1907 | int idx; | |
1908 | ||
639ad1ea JA |
1909 | if (!f) |
1910 | return; | |
1911 | ||
94a6e1bb JA |
1912 | if (f->first_write == -1ULL || offset < f->first_write) |
1913 | f->first_write = offset; | |
1914 | if (f->last_write == -1ULL || ((offset + bytes) > f->last_write)) | |
1915 | f->last_write = offset + bytes; | |
1916 | ||
1917 | if (!f->last_write_comp) | |
1918 | return; | |
1919 | ||
1920 | idx = f->last_write_idx++; | |
1921 | f->last_write_comp[idx] = offset; | |
1922 | if (f->last_write_idx == td->o.iodepth) | |
1923 | f->last_write_idx = 0; | |
1924 | } | |
1925 | ||
b2b3eefe JA |
1926 | static bool should_account(struct thread_data *td) |
1927 | { | |
1928 | return ramp_time_over(td) && (td->runstate == TD_RUNNING || | |
1929 | td->runstate == TD_VERIFYING); | |
1930 | } | |
1931 | ||
f8b0bd10 | 1932 | static void io_completed(struct thread_data *td, struct io_u **io_u_ptr, |
97601024 | 1933 | struct io_completion_data *icd) |
10ba535a | 1934 | { |
f8b0bd10 JA |
1935 | struct io_u *io_u = *io_u_ptr; |
1936 | enum fio_ddir ddir = io_u->ddir; | |
1937 | struct fio_file *f = io_u->file; | |
10ba535a | 1938 | |
e5f9a813 | 1939 | dprint_io_u(io_u, "complete"); |
2ba1c290 | 1940 | |
0c6e7517 | 1941 | assert(io_u->flags & IO_U_F_FLIGHT); |
1651e431 | 1942 | io_u_clear(td, io_u, IO_U_F_FLIGHT | IO_U_F_BUSY_OK); |
f9401285 JA |
1943 | |
1944 | /* | |
1945 | * Mark IO ok to verify | |
1946 | */ | |
1947 | if (io_u->ipo) { | |
890b6656 JA |
1948 | /* |
1949 | * Remove errored entry from the verification list | |
1950 | */ | |
1951 | if (io_u->error) | |
1952 | unlog_io_piece(td, io_u); | |
1953 | else { | |
1954 | io_u->ipo->flags &= ~IP_F_IN_FLIGHT; | |
1955 | write_barrier(); | |
1956 | } | |
f9401285 JA |
1957 | } |
1958 | ||
f8b0bd10 | 1959 | if (ddir_sync(ddir)) { |
2ea93f98 | 1960 | td->last_was_sync = true; |
44f29692 JA |
1961 | if (f) { |
1962 | f->first_write = -1ULL; | |
1963 | f->last_write = -1ULL; | |
1964 | } | |
b2b3eefe JA |
1965 | if (should_account(td)) |
1966 | account_io_completion(td, io_u, icd, ddir, io_u->buflen); | |
87dc1ab1 JA |
1967 | return; |
1968 | } | |
1969 | ||
2ea93f98 | 1970 | td->last_was_sync = false; |
f8b0bd10 | 1971 | td->last_ddir = ddir; |
87dc1ab1 | 1972 | |
f8b0bd10 | 1973 | if (!io_u->error && ddir_rw(ddir)) { |
10ba535a | 1974 | unsigned int bytes = io_u->buflen - io_u->resid; |
b29ee5b3 | 1975 | int ret; |
10ba535a | 1976 | |
f8b0bd10 | 1977 | td->io_blocks[ddir]++; |
f8b0bd10 | 1978 | td->io_bytes[ddir] += bytes; |
ae2fafc8 | 1979 | |
e1c325d2 JA |
1980 | if (!(io_u->flags & IO_U_F_VER_LIST)) { |
1981 | td->this_io_blocks[ddir]++; | |
f8b0bd10 | 1982 | td->this_io_bytes[ddir] += bytes; |
e1c325d2 | 1983 | } |
f8b0bd10 | 1984 | |
639ad1ea | 1985 | if (ddir == DDIR_WRITE) |
94a6e1bb | 1986 | file_log_write_comp(td, f, io_u->offset, bytes); |
44f29692 | 1987 | |
b2b3eefe | 1988 | if (should_account(td)) |
f8b0bd10 | 1989 | account_io_completion(td, io_u, icd, ddir, bytes); |
40e1a6f0 | 1990 | |
f8b0bd10 | 1991 | icd->bytes_done[ddir] += bytes; |
3af6ef39 | 1992 | |
d7762cf8 | 1993 | if (io_u->end_io) { |
f8b0bd10 JA |
1994 | ret = io_u->end_io(td, io_u_ptr); |
1995 | io_u = *io_u_ptr; | |
3af6ef39 JA |
1996 | if (ret && !icd->error) |
1997 | icd->error = ret; | |
1998 | } | |
ff58fced | 1999 | } else if (io_u->error) { |
10ba535a | 2000 | icd->error = io_u->error; |
5451792e JA |
2001 | io_u_log_error(td, io_u); |
2002 | } | |
8b28bd41 | 2003 | if (icd->error) { |
f8b0bd10 JA |
2004 | enum error_type_bit eb = td_error_type(ddir, icd->error); |
2005 | ||
8b28bd41 DM |
2006 | if (!td_non_fatal_error(td, eb, icd->error)) |
2007 | return; | |
f8b0bd10 | 2008 | |
f2bba182 RR |
2009 | /* |
2010 | * If there is a non_fatal error, then add to the error count | |
2011 | * and clear all the errors. | |
2012 | */ | |
2013 | update_error_count(td, icd->error); | |
2014 | td_clear_error(td); | |
2015 | icd->error = 0; | |
f8b0bd10 JA |
2016 | if (io_u) |
2017 | io_u->error = 0; | |
f2bba182 | 2018 | } |
10ba535a JA |
2019 | } |
2020 | ||
9520ebb9 JA |
2021 | static void init_icd(struct thread_data *td, struct io_completion_data *icd, |
2022 | int nr) | |
10ba535a | 2023 | { |
6eaf09d6 | 2024 | int ddir; |
aba6c951 JA |
2025 | |
2026 | if (!gtod_reduce(td)) | |
9520ebb9 | 2027 | fio_gettime(&icd->time, NULL); |
02bcaa8c | 2028 | |
3af6ef39 JA |
2029 | icd->nr = nr; |
2030 | ||
10ba535a | 2031 | icd->error = 0; |
c1f50f76 | 2032 | for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++) |
6eaf09d6 | 2033 | icd->bytes_done[ddir] = 0; |
36167d82 JA |
2034 | } |
2035 | ||
97601024 JA |
2036 | static void ios_completed(struct thread_data *td, |
2037 | struct io_completion_data *icd) | |
36167d82 JA |
2038 | { |
2039 | struct io_u *io_u; | |
2040 | int i; | |
2041 | ||
10ba535a JA |
2042 | for (i = 0; i < icd->nr; i++) { |
2043 | io_u = td->io_ops->event(td, i); | |
2044 | ||
f8b0bd10 | 2045 | io_completed(td, &io_u, icd); |
e8462bd8 | 2046 | |
f8b0bd10 | 2047 | if (io_u) |
e8462bd8 | 2048 | put_io_u(td, io_u); |
10ba535a JA |
2049 | } |
2050 | } | |
97601024 | 2051 | |
e7e6cfb4 JA |
2052 | /* |
2053 | * Complete a single io_u for the sync engines. | |
2054 | */ | |
55312f9f | 2055 | int io_u_sync_complete(struct thread_data *td, struct io_u *io_u) |
97601024 JA |
2056 | { |
2057 | struct io_completion_data icd; | |
55312f9f | 2058 | int ddir; |
97601024 | 2059 | |
9520ebb9 | 2060 | init_icd(td, &icd, 1); |
f8b0bd10 | 2061 | io_completed(td, &io_u, &icd); |
e8462bd8 | 2062 | |
f8b0bd10 | 2063 | if (io_u) |
e8462bd8 | 2064 | put_io_u(td, io_u); |
97601024 | 2065 | |
581e7141 JA |
2066 | if (icd.error) { |
2067 | td_verror(td, icd.error, "io_u_sync_complete"); | |
2068 | return -1; | |
2069 | } | |
97601024 | 2070 | |
c1f50f76 | 2071 | for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++) |
55312f9f | 2072 | td->bytes_done[ddir] += icd.bytes_done[ddir]; |
581e7141 JA |
2073 | |
2074 | return 0; | |
97601024 JA |
2075 | } |
2076 | ||
e7e6cfb4 JA |
2077 | /* |
2078 | * Called to complete min_events number of io for the async engines. | |
2079 | */ | |
55312f9f | 2080 | int io_u_queued_complete(struct thread_data *td, int min_evts) |
97601024 | 2081 | { |
97601024 | 2082 | struct io_completion_data icd; |
00de55ef | 2083 | struct timespec *tvp = NULL; |
55312f9f | 2084 | int ret, ddir; |
4d06a338 | 2085 | struct timespec ts = { .tv_sec = 0, .tv_nsec = 0, }; |
97601024 | 2086 | |
12bb8569 | 2087 | dprint(FD_IO, "io_u_queued_complete: min=%d\n", min_evts); |
b271fe62 | 2088 | |
4950421a | 2089 | if (!min_evts) |
00de55ef | 2090 | tvp = &ts; |
5fb4b366 RE |
2091 | else if (min_evts > td->cur_depth) |
2092 | min_evts = td->cur_depth; | |
97601024 | 2093 | |
82407585 RP |
2094 | /* No worries, td_io_getevents fixes min and max if they are |
2095 | * set incorrectly */ | |
2096 | ret = td_io_getevents(td, min_evts, td->o.iodepth_batch_complete_max, tvp); | |
97601024 | 2097 | if (ret < 0) { |
e1161c32 | 2098 | td_verror(td, -ret, "td_io_getevents"); |
97601024 JA |
2099 | return ret; |
2100 | } else if (!ret) | |
2101 | return ret; | |
2102 | ||
9520ebb9 | 2103 | init_icd(td, &icd, ret); |
97601024 | 2104 | ios_completed(td, &icd); |
581e7141 JA |
2105 | if (icd.error) { |
2106 | td_verror(td, icd.error, "io_u_queued_complete"); | |
2107 | return -1; | |
2108 | } | |
97601024 | 2109 | |
c1f50f76 | 2110 | for (ddir = 0; ddir < DDIR_RWDIR_CNT; ddir++) |
55312f9f | 2111 | td->bytes_done[ddir] += icd.bytes_done[ddir]; |
581e7141 | 2112 | |
0d593542 | 2113 | return ret; |
97601024 | 2114 | } |
7e77dd02 JA |
2115 | |
2116 | /* | |
2117 | * Call when io_u is really queued, to update the submission latency. | |
2118 | */ | |
2119 | void io_u_queued(struct thread_data *td, struct io_u *io_u) | |
2120 | { | |
8243be59 | 2121 | if (!td->o.disable_slat && ramp_time_over(td) && td->o.stats) { |
9520ebb9 | 2122 | unsigned long slat_time; |
7e77dd02 | 2123 | |
d6bb626e | 2124 | slat_time = ntime_since(&io_u->start_time, &io_u->issue_time); |
75dc383e JA |
2125 | |
2126 | if (td->parent) | |
2127 | td = td->parent; | |
2128 | ||
ae588852 JA |
2129 | add_slat_sample(td, io_u->ddir, slat_time, io_u->xfer_buflen, |
2130 | io_u->offset); | |
9520ebb9 | 2131 | } |
7e77dd02 | 2132 | } |
433afcb4 | 2133 | |
5c94b008 JA |
2134 | /* |
2135 | * See if we should reuse the last seed, if dedupe is enabled | |
2136 | */ | |
9451b93e | 2137 | static struct frand_state *get_buf_state(struct thread_data *td) |
5c94b008 JA |
2138 | { |
2139 | unsigned int v; | |
5c94b008 JA |
2140 | |
2141 | if (!td->o.dedupe_percentage) | |
2142 | return &td->buf_state; | |
732eedd0 | 2143 | else if (td->o.dedupe_percentage == 100) { |
9451b93e JA |
2144 | frand_copy(&td->buf_state_prev, &td->buf_state); |
2145 | return &td->buf_state; | |
732eedd0 | 2146 | } |
5c94b008 | 2147 | |
36dd3379 | 2148 | v = rand32_between(&td->dedupe_state, 1, 100); |
5c94b008 JA |
2149 | |
2150 | if (v <= td->o.dedupe_percentage) | |
2151 | return &td->buf_state_prev; | |
2152 | ||
2153 | return &td->buf_state; | |
2154 | } | |
2155 | ||
9451b93e | 2156 | static void save_buf_state(struct thread_data *td, struct frand_state *rs) |
5c94b008 | 2157 | { |
9451b93e JA |
2158 | if (td->o.dedupe_percentage == 100) |
2159 | frand_copy(rs, &td->buf_state_prev); | |
2160 | else if (rs == &td->buf_state) | |
5c94b008 JA |
2161 | frand_copy(&td->buf_state_prev, rs); |
2162 | } | |
2163 | ||
cc86c395 JA |
2164 | void fill_io_buffer(struct thread_data *td, void *buf, unsigned int min_write, |
2165 | unsigned int max_bs) | |
5973cafb | 2166 | { |
d1af2894 JA |
2167 | struct thread_options *o = &td->o; |
2168 | ||
15600335 JA |
2169 | if (o->mem_type == MEM_CUDA_MALLOC) |
2170 | return; | |
03553853 | 2171 | |
4eff3e57 | 2172 | if (o->compress_percentage || o->dedupe_percentage) { |
9c42684e | 2173 | unsigned int perc = td->o.compress_percentage; |
5c94b008 | 2174 | struct frand_state *rs; |
1066358a | 2175 | unsigned int left = max_bs; |
1e7f82e2 | 2176 | unsigned int this_write; |
5c94b008 | 2177 | |
1066358a | 2178 | do { |
9451b93e | 2179 | rs = get_buf_state(td); |
9c42684e | 2180 | |
1066358a | 2181 | min_write = min(min_write, left); |
f97a43a1 | 2182 | |
1066358a | 2183 | if (perc) { |
4b157ac6 JA |
2184 | this_write = min_not_zero(min_write, |
2185 | td->o.compress_chunk); | |
1e7f82e2 JA |
2186 | |
2187 | fill_random_buf_percentage(rs, buf, perc, | |
2188 | this_write, this_write, | |
2189 | o->buffer_pattern, | |
2190 | o->buffer_pattern_bytes); | |
2191 | } else { | |
1066358a | 2192 | fill_random_buf(rs, buf, min_write); |
1e7f82e2 JA |
2193 | this_write = min_write; |
2194 | } | |
1066358a | 2195 | |
1e7f82e2 JA |
2196 | buf += this_write; |
2197 | left -= this_write; | |
9451b93e | 2198 | save_buf_state(td, rs); |
1066358a | 2199 | } while (left); |
d1af2894 JA |
2200 | } else if (o->buffer_pattern_bytes) |
2201 | fill_buffer_pattern(td, buf, max_bs); | |
999d245e | 2202 | else if (o->zero_buffers) |
cc86c395 | 2203 | memset(buf, 0, max_bs); |
999d245e | 2204 | else |
9451b93e | 2205 | fill_random_buf(get_buf_state(td), buf, max_bs); |
cc86c395 JA |
2206 | } |
2207 | ||
2208 | /* | |
2209 | * "randomly" fill the buffer contents | |
2210 | */ | |
2211 | void io_u_fill_buffer(struct thread_data *td, struct io_u *io_u, | |
2212 | unsigned int min_write, unsigned int max_bs) | |
2213 | { | |
2214 | io_u->buf_filled_len = 0; | |
2215 | fill_io_buffer(td, io_u->buf, min_write, max_bs); | |
5973cafb | 2216 | } |
e2c75fc4 TK |
2217 | |
2218 | static int do_sync_file_range(const struct thread_data *td, | |
2219 | struct fio_file *f) | |
2220 | { | |
2221 | off64_t offset, nbytes; | |
2222 | ||
2223 | offset = f->first_write; | |
2224 | nbytes = f->last_write - f->first_write; | |
2225 | ||
2226 | if (!nbytes) | |
2227 | return 0; | |
2228 | ||
2229 | return sync_file_range(f->fd, offset, nbytes, td->o.sync_file_range); | |
2230 | } | |
2231 | ||
2232 | int do_io_u_sync(const struct thread_data *td, struct io_u *io_u) | |
2233 | { | |
2234 | int ret; | |
2235 | ||
2236 | if (io_u->ddir == DDIR_SYNC) { | |
2237 | ret = fsync(io_u->file->fd); | |
2238 | } else if (io_u->ddir == DDIR_DATASYNC) { | |
2239 | #ifdef CONFIG_FDATASYNC | |
2240 | ret = fdatasync(io_u->file->fd); | |
2241 | #else | |
2242 | ret = io_u->xfer_buflen; | |
2243 | io_u->error = EINVAL; | |
2244 | #endif | |
2245 | } else if (io_u->ddir == DDIR_SYNC_FILE_RANGE) | |
2246 | ret = do_sync_file_range(td, io_u->file); | |
2247 | else { | |
2248 | ret = io_u->xfer_buflen; | |
2249 | io_u->error = EINVAL; | |
2250 | } | |
2251 | ||
2252 | if (ret < 0) | |
2253 | io_u->error = errno; | |
2254 | ||
2255 | return ret; | |
2256 | } | |
2257 | ||
2258 | int do_io_u_trim(const struct thread_data *td, struct io_u *io_u) | |
2259 | { | |
2260 | #ifndef FIO_HAVE_TRIM | |
2261 | io_u->error = EINVAL; | |
2262 | return 0; | |
2263 | #else | |
2264 | struct fio_file *f = io_u->file; | |
2265 | int ret; | |
2266 | ||
496b1f9e | 2267 | ret = os_trim(f, io_u->offset, io_u->xfer_buflen); |
e2c75fc4 TK |
2268 | if (!ret) |
2269 | return io_u->xfer_buflen; | |
2270 | ||
2271 | io_u->error = ret; | |
2272 | return 0; | |
2273 | #endif | |
2274 | } |