Commit | Line | Data |
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10ba535a JA |
1 | #include <unistd.h> |
2 | #include <fcntl.h> | |
3 | #include <string.h> | |
4 | #include <signal.h> | |
5 | #include <time.h> | |
0c6e7517 | 6 | #include <assert.h> |
10ba535a JA |
7 | |
8 | #include "fio.h" | |
5973cafb | 9 | #include "hash.h" |
4f5af7b2 | 10 | #include "verify.h" |
0d29de83 | 11 | #include "trim.h" |
1fbbf72e | 12 | #include "lib/rand.h" |
7ebd796f | 13 | #include "lib/axmap.h" |
10ba535a | 14 | |
97601024 JA |
15 | struct io_completion_data { |
16 | int nr; /* input */ | |
97601024 JA |
17 | |
18 | int error; /* output */ | |
100f49f1 | 19 | uint64_t bytes_done[DDIR_RWDIR_CNT]; /* output */ |
97601024 JA |
20 | struct timeval time; /* output */ |
21 | }; | |
22 | ||
10ba535a | 23 | /* |
7ebd796f | 24 | * The ->io_axmap contains a map of blocks we have or have not done io |
10ba535a JA |
25 | * to yet. Used to make sure we cover the entire range in a fair fashion. |
26 | */ | |
1ae83d45 | 27 | static int random_map_free(struct fio_file *f, const uint64_t block) |
10ba535a | 28 | { |
7ebd796f | 29 | return !axmap_isset(f->io_axmap, block); |
10ba535a JA |
30 | } |
31 | ||
df415585 JA |
32 | /* |
33 | * Mark a given offset as used in the map. | |
34 | */ | |
9bf2061e | 35 | static void mark_random_map(struct thread_data *td, struct io_u *io_u) |
df415585 | 36 | { |
2dc1bbeb | 37 | unsigned int min_bs = td->o.rw_min_bs; |
9bf2061e | 38 | struct fio_file *f = io_u->file; |
51ede0b1 | 39 | unsigned int nr_blocks; |
1ae83d45 | 40 | uint64_t block; |
df415585 | 41 | |
1ae83d45 | 42 | block = (io_u->offset - f->file_offset) / (uint64_t) min_bs; |
c685b5b2 | 43 | nr_blocks = (io_u->buflen + min_bs - 1) / min_bs; |
df415585 | 44 | |
2ab9e98b | 45 | if (!(io_u->flags & IO_U_F_BUSY_OK)) |
7ebd796f | 46 | nr_blocks = axmap_set_nr(f->io_axmap, block, nr_blocks); |
df415585 | 47 | |
51ede0b1 JA |
48 | if ((nr_blocks * min_bs) < io_u->buflen) |
49 | io_u->buflen = nr_blocks * min_bs; | |
df415585 JA |
50 | } |
51 | ||
74776733 JA |
52 | static uint64_t last_block(struct thread_data *td, struct fio_file *f, |
53 | enum fio_ddir ddir) | |
2ba1c290 | 54 | { |
74776733 JA |
55 | uint64_t max_blocks; |
56 | uint64_t max_size; | |
2ba1c290 | 57 | |
ff58fced JA |
58 | assert(ddir_rw(ddir)); |
59 | ||
d9dd70f7 JA |
60 | /* |
61 | * Hmm, should we make sure that ->io_size <= ->real_file_size? | |
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 | ||
1ae83d45 | 70 | max_blocks = max_size / (uint64_t) td->o.ba[ddir]; |
2ba1c290 JA |
71 | if (!max_blocks) |
72 | return 0; | |
73 | ||
67778e88 | 74 | return max_blocks; |
2ba1c290 JA |
75 | } |
76 | ||
1ae83d45 JA |
77 | struct rand_off { |
78 | struct flist_head list; | |
79 | uint64_t off; | |
80 | }; | |
81 | ||
e25839d4 | 82 | static int __get_next_rand_offset(struct thread_data *td, struct fio_file *f, |
1ae83d45 | 83 | enum fio_ddir ddir, uint64_t *b) |
ec4015da | 84 | { |
1ae83d45 | 85 | uint64_t r, lastb; |
ec4015da | 86 | |
74776733 JA |
87 | lastb = last_block(td, f, ddir); |
88 | if (!lastb) | |
89 | return 1; | |
5e0baa7f | 90 | |
74776733 | 91 | if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE) { |
1ae83d45 | 92 | uint64_t rmax; |
2615cc4b | 93 | |
8055e41d JA |
94 | rmax = td->o.use_os_rand ? OS_RAND_MAX : FRAND_MAX; |
95 | ||
96 | if (td->o.use_os_rand) { | |
97 | rmax = OS_RAND_MAX; | |
98 | r = os_random_long(&td->random_state); | |
99 | } else { | |
100 | rmax = FRAND_MAX; | |
101 | r = __rand(&td->__random_state); | |
102 | } | |
103 | ||
4b91ee8f | 104 | dprint(FD_RANDOM, "off rand %llu\n", (unsigned long long) r); |
8055e41d | 105 | |
1ae83d45 | 106 | *b = (lastb - 1) * (r / ((uint64_t) rmax + 1.0)); |
51ede0b1 | 107 | } else { |
8055e41d | 108 | uint64_t off = 0; |
43c63a78 | 109 | |
74776733 | 110 | if (lfsr_next(&f->lfsr, &off, lastb)) |
8055e41d | 111 | return 1; |
ec4015da | 112 | |
8055e41d JA |
113 | *b = off; |
114 | } | |
0ce8b119 | 115 | |
ec4015da | 116 | /* |
51ede0b1 | 117 | * if we are not maintaining a random map, we are done. |
ec4015da | 118 | */ |
51ede0b1 JA |
119 | if (!file_randommap(td, f)) |
120 | goto ret; | |
43c63a78 JA |
121 | |
122 | /* | |
51ede0b1 | 123 | * calculate map offset and check if it's free |
43c63a78 | 124 | */ |
51ede0b1 JA |
125 | if (random_map_free(f, *b)) |
126 | goto ret; | |
127 | ||
4b91ee8f JA |
128 | dprint(FD_RANDOM, "get_next_rand_offset: offset %llu busy\n", |
129 | (unsigned long long) *b); | |
51ede0b1 | 130 | |
7ebd796f | 131 | *b = axmap_next_free(f->io_axmap, *b); |
51ede0b1 JA |
132 | if (*b == (uint64_t) -1ULL) |
133 | return 1; | |
0ce8b119 JA |
134 | ret: |
135 | return 0; | |
ec4015da JA |
136 | } |
137 | ||
925fee33 JA |
138 | static int __get_next_rand_offset_zipf(struct thread_data *td, |
139 | struct fio_file *f, enum fio_ddir ddir, | |
1ae83d45 | 140 | uint64_t *b) |
e25839d4 | 141 | { |
9c6f6316 | 142 | *b = zipf_next(&f->zipf); |
e25839d4 JA |
143 | return 0; |
144 | } | |
145 | ||
925fee33 JA |
146 | static int __get_next_rand_offset_pareto(struct thread_data *td, |
147 | struct fio_file *f, enum fio_ddir ddir, | |
1ae83d45 | 148 | uint64_t *b) |
925fee33 | 149 | { |
9c6f6316 | 150 | *b = pareto_next(&f->zipf); |
925fee33 JA |
151 | return 0; |
152 | } | |
153 | ||
1ae83d45 JA |
154 | static int flist_cmp(void *data, struct flist_head *a, struct flist_head *b) |
155 | { | |
156 | struct rand_off *r1 = flist_entry(a, struct rand_off, list); | |
157 | struct rand_off *r2 = flist_entry(b, struct rand_off, list); | |
158 | ||
159 | return r1->off - r2->off; | |
160 | } | |
161 | ||
162 | static int get_off_from_method(struct thread_data *td, struct fio_file *f, | |
163 | enum fio_ddir ddir, uint64_t *b) | |
e25839d4 JA |
164 | { |
165 | if (td->o.random_distribution == FIO_RAND_DIST_RANDOM) | |
166 | return __get_next_rand_offset(td, f, ddir, b); | |
167 | else if (td->o.random_distribution == FIO_RAND_DIST_ZIPF) | |
168 | return __get_next_rand_offset_zipf(td, f, ddir, b); | |
925fee33 JA |
169 | else if (td->o.random_distribution == FIO_RAND_DIST_PARETO) |
170 | return __get_next_rand_offset_pareto(td, f, ddir, b); | |
e25839d4 JA |
171 | |
172 | log_err("fio: unknown random distribution: %d\n", td->o.random_distribution); | |
173 | return 1; | |
174 | } | |
175 | ||
bcd5abfa JA |
176 | /* |
177 | * Sort the reads for a verify phase in batches of verifysort_nr, if | |
178 | * specified. | |
179 | */ | |
180 | static inline int should_sort_io(struct thread_data *td) | |
181 | { | |
182 | if (!td->o.verifysort_nr || !td->o.do_verify) | |
183 | return 0; | |
184 | if (!td_random(td)) | |
185 | return 0; | |
186 | if (td->runstate != TD_VERIFYING) | |
187 | return 0; | |
188 | if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE) | |
189 | return 0; | |
190 | ||
191 | return 1; | |
192 | } | |
193 | ||
211c9b89 JA |
194 | static int should_do_random(struct thread_data *td) |
195 | { | |
196 | unsigned int v; | |
197 | unsigned long r; | |
198 | ||
199 | if (td->o.perc_rand == 100) | |
200 | return 1; | |
201 | ||
202 | if (td->o.use_os_rand) { | |
203 | r = os_random_long(&td->seq_rand_state); | |
204 | v = 1 + (int) (100.0 * (r / (OS_RAND_MAX + 1.0))); | |
205 | } else { | |
206 | r = __rand(&td->__seq_rand_state); | |
207 | v = 1 + (int) (100.0 * (r / (FRAND_MAX + 1.0))); | |
208 | } | |
209 | ||
210 | return v <= td->o.perc_rand; | |
211 | } | |
212 | ||
1ae83d45 JA |
213 | static int get_next_rand_offset(struct thread_data *td, struct fio_file *f, |
214 | enum fio_ddir ddir, uint64_t *b) | |
215 | { | |
216 | struct rand_off *r; | |
217 | int i, ret = 1; | |
218 | ||
bcd5abfa | 219 | if (!should_sort_io(td)) |
1ae83d45 JA |
220 | return get_off_from_method(td, f, ddir, b); |
221 | ||
222 | if (!flist_empty(&td->next_rand_list)) { | |
223 | struct rand_off *r; | |
224 | fetch: | |
225 | r = flist_entry(td->next_rand_list.next, struct rand_off, list); | |
226 | flist_del(&r->list); | |
227 | *b = r->off; | |
228 | free(r); | |
229 | return 0; | |
230 | } | |
231 | ||
232 | for (i = 0; i < td->o.verifysort_nr; i++) { | |
233 | r = malloc(sizeof(*r)); | |
234 | ||
235 | ret = get_off_from_method(td, f, ddir, &r->off); | |
236 | if (ret) { | |
237 | free(r); | |
238 | break; | |
239 | } | |
240 | ||
241 | flist_add(&r->list, &td->next_rand_list); | |
242 | } | |
243 | ||
244 | if (ret && !i) | |
245 | return ret; | |
246 | ||
247 | assert(!flist_empty(&td->next_rand_list)); | |
248 | flist_sort(NULL, &td->next_rand_list, flist_cmp); | |
249 | goto fetch; | |
250 | } | |
251 | ||
38dad62d | 252 | static int get_next_rand_block(struct thread_data *td, struct fio_file *f, |
1ae83d45 | 253 | enum fio_ddir ddir, uint64_t *b) |
38dad62d | 254 | { |
c04e4661 DE |
255 | if (!get_next_rand_offset(td, f, ddir, b)) |
256 | return 0; | |
257 | ||
258 | if (td->o.time_based) { | |
33c48814 | 259 | fio_file_reset(td, f); |
c04e4661 DE |
260 | if (!get_next_rand_offset(td, f, ddir, b)) |
261 | return 0; | |
38dad62d JA |
262 | } |
263 | ||
c04e4661 | 264 | dprint(FD_IO, "%s: rand offset failed, last=%llu, size=%llu\n", |
4b91ee8f JA |
265 | f->file_name, (unsigned long long) f->last_pos, |
266 | (unsigned long long) f->real_file_size); | |
c04e4661 | 267 | return 1; |
38dad62d JA |
268 | } |
269 | ||
37cf9e3c | 270 | static int get_next_seq_offset(struct thread_data *td, struct fio_file *f, |
1ae83d45 | 271 | enum fio_ddir ddir, uint64_t *offset) |
38dad62d | 272 | { |
ff58fced JA |
273 | assert(ddir_rw(ddir)); |
274 | ||
ce95d651 | 275 | if (f->last_pos >= f->io_size + get_start_offset(td) && td->o.time_based) |
c04e4661 DE |
276 | f->last_pos = f->last_pos - f->io_size; |
277 | ||
38dad62d | 278 | if (f->last_pos < f->real_file_size) { |
1ae83d45 | 279 | uint64_t pos; |
059b0802 | 280 | |
a66da7a2 JA |
281 | if (f->last_pos == f->file_offset && td->o.ddir_seq_add < 0) |
282 | f->last_pos = f->real_file_size; | |
283 | ||
284 | pos = f->last_pos - f->file_offset; | |
059b0802 JA |
285 | if (pos) |
286 | pos += td->o.ddir_seq_add; | |
287 | ||
37cf9e3c | 288 | *offset = pos; |
38dad62d JA |
289 | return 0; |
290 | } | |
291 | ||
292 | return 1; | |
293 | } | |
294 | ||
295 | static int get_next_block(struct thread_data *td, struct io_u *io_u, | |
37cf9e3c | 296 | enum fio_ddir ddir, int rw_seq) |
38dad62d JA |
297 | { |
298 | struct fio_file *f = io_u->file; | |
1ae83d45 | 299 | uint64_t b, offset; |
38dad62d JA |
300 | int ret; |
301 | ||
ff58fced JA |
302 | assert(ddir_rw(ddir)); |
303 | ||
37cf9e3c JA |
304 | b = offset = -1ULL; |
305 | ||
38dad62d | 306 | if (rw_seq) { |
211c9b89 JA |
307 | if (td_random(td)) { |
308 | if (should_do_random(td)) | |
309 | ret = get_next_rand_block(td, f, ddir, &b); | |
310 | else { | |
311 | io_u->flags |= IO_U_F_BUSY_OK; | |
312 | ret = get_next_seq_offset(td, f, ddir, &offset); | |
313 | if (ret) | |
314 | ret = get_next_rand_block(td, f, ddir, &b); | |
315 | } | |
316 | } else | |
37cf9e3c | 317 | ret = get_next_seq_offset(td, f, ddir, &offset); |
38dad62d JA |
318 | } else { |
319 | io_u->flags |= IO_U_F_BUSY_OK; | |
320 | ||
321 | if (td->o.rw_seq == RW_SEQ_SEQ) { | |
37cf9e3c | 322 | ret = get_next_seq_offset(td, f, ddir, &offset); |
38dad62d | 323 | if (ret) |
37cf9e3c | 324 | ret = get_next_rand_block(td, f, ddir, &b); |
38dad62d JA |
325 | } else if (td->o.rw_seq == RW_SEQ_IDENT) { |
326 | if (f->last_start != -1ULL) | |
37cf9e3c | 327 | offset = f->last_start - f->file_offset; |
38dad62d | 328 | else |
37cf9e3c | 329 | offset = 0; |
38dad62d JA |
330 | ret = 0; |
331 | } else { | |
332 | log_err("fio: unknown rw_seq=%d\n", td->o.rw_seq); | |
333 | ret = 1; | |
334 | } | |
335 | } | |
6d68b997 | 336 | |
37cf9e3c JA |
337 | if (!ret) { |
338 | if (offset != -1ULL) | |
339 | io_u->offset = offset; | |
340 | else if (b != -1ULL) | |
341 | io_u->offset = b * td->o.ba[ddir]; | |
342 | else { | |
4e0a8fa2 | 343 | log_err("fio: bug in offset generation: offset=%llu, b=%llu\n", (unsigned long long) offset, (unsigned long long) b); |
37cf9e3c JA |
344 | ret = 1; |
345 | } | |
346 | } | |
347 | ||
38dad62d JA |
348 | return ret; |
349 | } | |
350 | ||
10ba535a JA |
351 | /* |
352 | * For random io, generate a random new block and see if it's used. Repeat | |
353 | * until we find a free one. For sequential io, just return the end of | |
354 | * the last io issued. | |
355 | */ | |
15dc1934 | 356 | static int __get_next_offset(struct thread_data *td, struct io_u *io_u) |
10ba535a | 357 | { |
9bf2061e | 358 | struct fio_file *f = io_u->file; |
4ba66134 | 359 | enum fio_ddir ddir = io_u->ddir; |
38dad62d | 360 | int rw_seq_hit = 0; |
10ba535a | 361 | |
ff58fced JA |
362 | assert(ddir_rw(ddir)); |
363 | ||
38dad62d JA |
364 | if (td->o.ddir_seq_nr && !--td->ddir_seq_nr) { |
365 | rw_seq_hit = 1; | |
5736c10d | 366 | td->ddir_seq_nr = td->o.ddir_seq_nr; |
38dad62d | 367 | } |
211097b2 | 368 | |
37cf9e3c | 369 | if (get_next_block(td, io_u, ddir, rw_seq_hit)) |
38dad62d | 370 | return 1; |
10ba535a | 371 | |
009bd847 JA |
372 | if (io_u->offset >= f->io_size) { |
373 | dprint(FD_IO, "get_next_offset: offset %llu >= io_size %llu\n", | |
4b91ee8f JA |
374 | (unsigned long long) io_u->offset, |
375 | (unsigned long long) f->io_size); | |
009bd847 JA |
376 | return 1; |
377 | } | |
378 | ||
379 | io_u->offset += f->file_offset; | |
2ba1c290 JA |
380 | if (io_u->offset >= f->real_file_size) { |
381 | dprint(FD_IO, "get_next_offset: offset %llu >= size %llu\n", | |
4b91ee8f JA |
382 | (unsigned long long) io_u->offset, |
383 | (unsigned long long) f->real_file_size); | |
10ba535a | 384 | return 1; |
2ba1c290 | 385 | } |
10ba535a JA |
386 | |
387 | return 0; | |
388 | } | |
389 | ||
15dc1934 JA |
390 | static int get_next_offset(struct thread_data *td, struct io_u *io_u) |
391 | { | |
d72be545 JA |
392 | if (td->flags & TD_F_PROFILE_OPS) { |
393 | struct prof_io_ops *ops = &td->prof_io_ops; | |
7eb36574 | 394 | |
d72be545 JA |
395 | if (ops->fill_io_u_off) |
396 | return ops->fill_io_u_off(td, io_u); | |
397 | } | |
15dc1934 JA |
398 | |
399 | return __get_next_offset(td, io_u); | |
400 | } | |
401 | ||
79944128 JA |
402 | static inline int io_u_fits(struct thread_data *td, struct io_u *io_u, |
403 | unsigned int buflen) | |
404 | { | |
405 | struct fio_file *f = io_u->file; | |
406 | ||
ce95d651 | 407 | return io_u->offset + buflen <= f->io_size + get_start_offset(td); |
79944128 JA |
408 | } |
409 | ||
15dc1934 | 410 | static unsigned int __get_next_buflen(struct thread_data *td, struct io_u *io_u) |
10ba535a | 411 | { |
bca4ed4d | 412 | const int ddir = io_u->ddir; |
24d23ca7 | 413 | unsigned int buflen = 0; |
f3059de1 | 414 | unsigned int minbs, maxbs; |
1294c3ec | 415 | unsigned long r, rand_max; |
10ba535a | 416 | |
ff58fced JA |
417 | assert(ddir_rw(ddir)); |
418 | ||
f3059de1 JA |
419 | minbs = td->o.min_bs[ddir]; |
420 | maxbs = td->o.max_bs[ddir]; | |
421 | ||
79944128 JA |
422 | if (minbs == maxbs) |
423 | return minbs; | |
424 | ||
52c58027 JA |
425 | /* |
426 | * If we can't satisfy the min block size from here, then fail | |
427 | */ | |
428 | if (!io_u_fits(td, io_u, minbs)) | |
429 | return 0; | |
430 | ||
4c07ad86 JA |
431 | if (td->o.use_os_rand) |
432 | rand_max = OS_RAND_MAX; | |
433 | else | |
434 | rand_max = FRAND_MAX; | |
435 | ||
79944128 | 436 | do { |
4c07ad86 JA |
437 | if (td->o.use_os_rand) |
438 | r = os_random_long(&td->bsrange_state); | |
439 | else | |
440 | r = __rand(&td->__bsrange_state); | |
441 | ||
720e84ad | 442 | if (!td->o.bssplit_nr[ddir]) { |
f3059de1 | 443 | buflen = 1 + (unsigned int) ((double) maxbs * |
4c07ad86 | 444 | (r / (rand_max + 1.0))); |
f3059de1 JA |
445 | if (buflen < minbs) |
446 | buflen = minbs; | |
5ec10eaa | 447 | } else { |
564ca972 JA |
448 | long perc = 0; |
449 | unsigned int i; | |
450 | ||
720e84ad JA |
451 | for (i = 0; i < td->o.bssplit_nr[ddir]; i++) { |
452 | struct bssplit *bsp = &td->o.bssplit[ddir][i]; | |
564ca972 JA |
453 | |
454 | buflen = bsp->bs; | |
455 | perc += bsp->perc; | |
79944128 JA |
456 | if ((r <= ((rand_max / 100L) * perc)) && |
457 | io_u_fits(td, io_u, buflen)) | |
564ca972 JA |
458 | break; |
459 | } | |
460 | } | |
79944128 | 461 | |
f3059de1 JA |
462 | if (!td->o.bs_unaligned && is_power_of_2(minbs)) |
463 | buflen = (buflen + minbs - 1) & ~(minbs - 1); | |
10ba535a | 464 | |
79944128 | 465 | } while (!io_u_fits(td, io_u, buflen)); |
6a5e6884 | 466 | |
10ba535a JA |
467 | return buflen; |
468 | } | |
469 | ||
15dc1934 JA |
470 | static unsigned int get_next_buflen(struct thread_data *td, struct io_u *io_u) |
471 | { | |
d72be545 JA |
472 | if (td->flags & TD_F_PROFILE_OPS) { |
473 | struct prof_io_ops *ops = &td->prof_io_ops; | |
7eb36574 | 474 | |
d72be545 JA |
475 | if (ops->fill_io_u_size) |
476 | return ops->fill_io_u_size(td, io_u); | |
477 | } | |
15dc1934 JA |
478 | |
479 | return __get_next_buflen(td, io_u); | |
480 | } | |
481 | ||
afe24a5a JA |
482 | static void set_rwmix_bytes(struct thread_data *td) |
483 | { | |
afe24a5a JA |
484 | unsigned int diff; |
485 | ||
486 | /* | |
487 | * we do time or byte based switch. this is needed because | |
488 | * buffered writes may issue a lot quicker than they complete, | |
489 | * whereas reads do not. | |
490 | */ | |
e47f799f | 491 | diff = td->o.rwmix[td->rwmix_ddir ^ 1]; |
04c540d9 | 492 | td->rwmix_issues = (td->io_issues[td->rwmix_ddir] * diff) / 100; |
e47f799f JA |
493 | } |
494 | ||
495 | static inline enum fio_ddir get_rand_ddir(struct thread_data *td) | |
496 | { | |
497 | unsigned int v; | |
1294c3ec | 498 | unsigned long r; |
e47f799f | 499 | |
4c07ad86 JA |
500 | if (td->o.use_os_rand) { |
501 | r = os_random_long(&td->rwmix_state); | |
502 | v = 1 + (int) (100.0 * (r / (OS_RAND_MAX + 1.0))); | |
503 | } else { | |
504 | r = __rand(&td->__rwmix_state); | |
505 | v = 1 + (int) (100.0 * (r / (FRAND_MAX + 1.0))); | |
506 | } | |
507 | ||
04c540d9 | 508 | if (v <= td->o.rwmix[DDIR_READ]) |
e47f799f JA |
509 | return DDIR_READ; |
510 | ||
511 | return DDIR_WRITE; | |
afe24a5a JA |
512 | } |
513 | ||
581e7141 JA |
514 | static enum fio_ddir rate_ddir(struct thread_data *td, enum fio_ddir ddir) |
515 | { | |
516 | enum fio_ddir odir = ddir ^ 1; | |
517 | struct timeval t; | |
518 | long usec; | |
519 | ||
ff58fced JA |
520 | assert(ddir_rw(ddir)); |
521 | ||
315fcfec | 522 | if (td->rate_pending_usleep[ddir] <= 0) |
581e7141 JA |
523 | return ddir; |
524 | ||
525 | /* | |
526 | * We have too much pending sleep in this direction. See if we | |
527 | * should switch. | |
528 | */ | |
315fcfec | 529 | if (td_rw(td) && td->o.rwmix[odir]) { |
581e7141 JA |
530 | /* |
531 | * Other direction does not have too much pending, switch | |
532 | */ | |
533 | if (td->rate_pending_usleep[odir] < 100000) | |
534 | return odir; | |
535 | ||
536 | /* | |
537 | * Both directions have pending sleep. Sleep the minimum time | |
538 | * and deduct from both. | |
539 | */ | |
540 | if (td->rate_pending_usleep[ddir] <= | |
541 | td->rate_pending_usleep[odir]) { | |
542 | usec = td->rate_pending_usleep[ddir]; | |
543 | } else { | |
544 | usec = td->rate_pending_usleep[odir]; | |
545 | ddir = odir; | |
546 | } | |
547 | } else | |
548 | usec = td->rate_pending_usleep[ddir]; | |
549 | ||
78c1eda5 JA |
550 | /* |
551 | * We are going to sleep, ensure that we flush anything pending as | |
422f9e4b RM |
552 | * not to skew our latency numbers. |
553 | * | |
554 | * Changed to only monitor 'in flight' requests here instead of the | |
555 | * td->cur_depth, b/c td->cur_depth does not accurately represent | |
556 | * io's that have been actually submitted to an async engine, | |
557 | * and cur_depth is meaningless for sync engines. | |
78c1eda5 | 558 | */ |
c3a1b740 | 559 | while (td->io_u_in_flight) { |
78c1eda5 JA |
560 | int fio_unused ret; |
561 | ||
c3a1b740 | 562 | ret = io_u_queued_complete(td, 1, NULL); |
78c1eda5 JA |
563 | } |
564 | ||
581e7141 JA |
565 | fio_gettime(&t, NULL); |
566 | usec_sleep(td, usec); | |
567 | usec = utime_since_now(&t); | |
568 | ||
569 | td->rate_pending_usleep[ddir] -= usec; | |
570 | ||
571 | odir = ddir ^ 1; | |
572 | if (td_rw(td) && __should_check_rate(td, odir)) | |
573 | td->rate_pending_usleep[odir] -= usec; | |
0b9d69ec | 574 | |
6eaf09d6 SL |
575 | if (ddir_trim(ddir)) |
576 | return ddir; | |
e0224c6b | 577 | |
581e7141 JA |
578 | return ddir; |
579 | } | |
580 | ||
10ba535a JA |
581 | /* |
582 | * Return the data direction for the next io_u. If the job is a | |
583 | * mixed read/write workload, check the rwmix cycle and switch if | |
584 | * necessary. | |
585 | */ | |
1e97cce9 | 586 | static enum fio_ddir get_rw_ddir(struct thread_data *td) |
10ba535a | 587 | { |
581e7141 JA |
588 | enum fio_ddir ddir; |
589 | ||
5f9099ea JA |
590 | /* |
591 | * see if it's time to fsync | |
592 | */ | |
593 | if (td->o.fsync_blocks && | |
594 | !(td->io_issues[DDIR_WRITE] % td->o.fsync_blocks) && | |
595 | td->io_issues[DDIR_WRITE] && should_fsync(td)) | |
596 | return DDIR_SYNC; | |
597 | ||
598 | /* | |
599 | * see if it's time to fdatasync | |
600 | */ | |
601 | if (td->o.fdatasync_blocks && | |
602 | !(td->io_issues[DDIR_WRITE] % td->o.fdatasync_blocks) && | |
603 | td->io_issues[DDIR_WRITE] && should_fsync(td)) | |
604 | return DDIR_DATASYNC; | |
605 | ||
44f29692 JA |
606 | /* |
607 | * see if it's time to sync_file_range | |
608 | */ | |
609 | if (td->sync_file_range_nr && | |
610 | !(td->io_issues[DDIR_WRITE] % td->sync_file_range_nr) && | |
611 | td->io_issues[DDIR_WRITE] && should_fsync(td)) | |
612 | return DDIR_SYNC_FILE_RANGE; | |
613 | ||
10ba535a | 614 | if (td_rw(td)) { |
10ba535a JA |
615 | /* |
616 | * Check if it's time to seed a new data direction. | |
617 | */ | |
e4928662 | 618 | if (td->io_issues[td->rwmix_ddir] >= td->rwmix_issues) { |
e47f799f JA |
619 | /* |
620 | * Put a top limit on how many bytes we do for | |
621 | * one data direction, to avoid overflowing the | |
622 | * ranges too much | |
623 | */ | |
624 | ddir = get_rand_ddir(td); | |
e47f799f JA |
625 | |
626 | if (ddir != td->rwmix_ddir) | |
627 | set_rwmix_bytes(td); | |
628 | ||
629 | td->rwmix_ddir = ddir; | |
10ba535a | 630 | } |
581e7141 | 631 | ddir = td->rwmix_ddir; |
10ba535a | 632 | } else if (td_read(td)) |
581e7141 | 633 | ddir = DDIR_READ; |
6eaf09d6 | 634 | else if (td_write(td)) |
581e7141 | 635 | ddir = DDIR_WRITE; |
6eaf09d6 SL |
636 | else |
637 | ddir = DDIR_TRIM; | |
581e7141 JA |
638 | |
639 | td->rwmix_ddir = rate_ddir(td, ddir); | |
640 | return td->rwmix_ddir; | |
10ba535a JA |
641 | } |
642 | ||
1ef2b6be JA |
643 | static void set_rw_ddir(struct thread_data *td, struct io_u *io_u) |
644 | { | |
bcd5abfa | 645 | io_u->ddir = io_u->acct_ddir = get_rw_ddir(td); |
1ef2b6be JA |
646 | |
647 | if (io_u->ddir == DDIR_WRITE && (td->io_ops->flags & FIO_BARRIER) && | |
648 | td->o.barrier_blocks && | |
649 | !(td->io_issues[DDIR_WRITE] % td->o.barrier_blocks) && | |
650 | td->io_issues[DDIR_WRITE]) | |
651 | io_u->flags |= IO_U_F_BARRIER; | |
652 | } | |
653 | ||
e8462bd8 | 654 | void put_file_log(struct thread_data *td, struct fio_file *f) |
60f2c658 JA |
655 | { |
656 | int ret = put_file(td, f); | |
657 | ||
658 | if (ret) | |
659 | td_verror(td, ret, "file close"); | |
660 | } | |
661 | ||
10ba535a JA |
662 | void put_io_u(struct thread_data *td, struct io_u *io_u) |
663 | { | |
e8462bd8 JA |
664 | td_io_u_lock(td); |
665 | ||
d7ee2a7d | 666 | if (io_u->file && !(io_u->flags & IO_U_F_FREE_DEF)) |
60f2c658 | 667 | put_file_log(td, io_u->file); |
10ba535a | 668 | io_u->file = NULL; |
d7ee2a7d SL |
669 | io_u->flags &= ~IO_U_F_FREE_DEF; |
670 | io_u->flags |= IO_U_F_FREE; | |
671 | ||
0c41214f RR |
672 | if (io_u->flags & IO_U_F_IN_CUR_DEPTH) |
673 | td->cur_depth--; | |
e8462bd8 | 674 | flist_del_init(&io_u->list); |
01743ee1 | 675 | flist_add(&io_u->list, &td->io_u_freelist); |
e8462bd8 JA |
676 | td_io_u_unlock(td); |
677 | td_io_u_free_notify(td); | |
10ba535a JA |
678 | } |
679 | ||
f2bba182 RR |
680 | void clear_io_u(struct thread_data *td, struct io_u *io_u) |
681 | { | |
682 | io_u->flags &= ~IO_U_F_FLIGHT; | |
683 | put_io_u(td, io_u); | |
684 | } | |
685 | ||
755200a3 JA |
686 | void requeue_io_u(struct thread_data *td, struct io_u **io_u) |
687 | { | |
688 | struct io_u *__io_u = *io_u; | |
bcd5abfa | 689 | enum fio_ddir ddir = acct_ddir(__io_u); |
755200a3 | 690 | |
465221b0 JA |
691 | dprint(FD_IO, "requeue %p\n", __io_u); |
692 | ||
e8462bd8 JA |
693 | td_io_u_lock(td); |
694 | ||
4d2e0f49 | 695 | __io_u->flags |= IO_U_F_FREE; |
bcd5abfa JA |
696 | if ((__io_u->flags & IO_U_F_FLIGHT) && ddir_rw(ddir)) |
697 | td->io_issues[ddir]--; | |
5ec10eaa | 698 | |
4d2e0f49 | 699 | __io_u->flags &= ~IO_U_F_FLIGHT; |
0c41214f RR |
700 | if (__io_u->flags & IO_U_F_IN_CUR_DEPTH) |
701 | td->cur_depth--; | |
01743ee1 JA |
702 | flist_del(&__io_u->list); |
703 | flist_add_tail(&__io_u->list, &td->io_u_requeues); | |
e8462bd8 | 704 | td_io_u_unlock(td); |
755200a3 JA |
705 | *io_u = NULL; |
706 | } | |
707 | ||
9bf2061e | 708 | static int fill_io_u(struct thread_data *td, struct io_u *io_u) |
10ba535a | 709 | { |
b4c5e1ac JA |
710 | if (td->io_ops->flags & FIO_NOIO) |
711 | goto out; | |
712 | ||
1ef2b6be | 713 | set_rw_ddir(td, io_u); |
5f9099ea | 714 | |
87dc1ab1 | 715 | /* |
ff58fced | 716 | * fsync() or fdatasync() or trim etc, we are done |
87dc1ab1 | 717 | */ |
ff58fced | 718 | if (!ddir_rw(io_u->ddir)) |
c38e9468 | 719 | goto out; |
a00735e6 | 720 | |
48f5abd3 JA |
721 | /* |
722 | * See if it's time to switch to a new zone | |
723 | */ | |
13af05ae | 724 | if (td->zone_bytes >= td->o.zone_size && td->o.zone_skip) { |
48f5abd3 | 725 | td->zone_bytes = 0; |
ed335855 SN |
726 | io_u->file->file_offset += td->o.zone_range + td->o.zone_skip; |
727 | io_u->file->last_pos = io_u->file->file_offset; | |
48f5abd3 JA |
728 | td->io_skip_bytes += td->o.zone_skip; |
729 | } | |
730 | ||
10ba535a | 731 | /* |
c685b5b2 JA |
732 | * No log, let the seq/rand engine retrieve the next buflen and |
733 | * position. | |
10ba535a | 734 | */ |
2ba1c290 JA |
735 | if (get_next_offset(td, io_u)) { |
736 | dprint(FD_IO, "io_u %p, failed getting offset\n", io_u); | |
bca4ed4d | 737 | return 1; |
2ba1c290 | 738 | } |
10ba535a | 739 | |
9bf2061e | 740 | io_u->buflen = get_next_buflen(td, io_u); |
2ba1c290 JA |
741 | if (!io_u->buflen) { |
742 | dprint(FD_IO, "io_u %p, failed getting buflen\n", io_u); | |
bca4ed4d | 743 | return 1; |
2ba1c290 | 744 | } |
bca4ed4d | 745 | |
2ba1c290 JA |
746 | if (io_u->offset + io_u->buflen > io_u->file->real_file_size) { |
747 | dprint(FD_IO, "io_u %p, offset too large\n", io_u); | |
4b91ee8f JA |
748 | dprint(FD_IO, " off=%llu/%lu > %llu\n", |
749 | (unsigned long long) io_u->offset, io_u->buflen, | |
750 | (unsigned long long) io_u->file->real_file_size); | |
6a5e6884 | 751 | return 1; |
2ba1c290 | 752 | } |
6a5e6884 | 753 | |
bca4ed4d JA |
754 | /* |
755 | * mark entry before potentially trimming io_u | |
756 | */ | |
303032ae | 757 | if (td_random(td) && file_randommap(td, io_u->file)) |
9bf2061e | 758 | mark_random_map(td, io_u); |
bca4ed4d | 759 | |
c38e9468 | 760 | out: |
2ba1c290 | 761 | dprint_io_u(io_u, "fill_io_u"); |
d9d91e39 | 762 | td->zone_bytes += io_u->buflen; |
bca4ed4d | 763 | return 0; |
10ba535a JA |
764 | } |
765 | ||
838bc709 JA |
766 | static void __io_u_mark_map(unsigned int *map, unsigned int nr) |
767 | { | |
2b13e716 | 768 | int idx = 0; |
838bc709 JA |
769 | |
770 | switch (nr) { | |
771 | default: | |
2b13e716 | 772 | idx = 6; |
838bc709 JA |
773 | break; |
774 | case 33 ... 64: | |
2b13e716 | 775 | idx = 5; |
838bc709 JA |
776 | break; |
777 | case 17 ... 32: | |
2b13e716 | 778 | idx = 4; |
838bc709 JA |
779 | break; |
780 | case 9 ... 16: | |
2b13e716 | 781 | idx = 3; |
838bc709 JA |
782 | break; |
783 | case 5 ... 8: | |
2b13e716 | 784 | idx = 2; |
838bc709 JA |
785 | break; |
786 | case 1 ... 4: | |
2b13e716 | 787 | idx = 1; |
838bc709 JA |
788 | case 0: |
789 | break; | |
790 | } | |
791 | ||
2b13e716 | 792 | map[idx]++; |
838bc709 JA |
793 | } |
794 | ||
795 | void io_u_mark_submit(struct thread_data *td, unsigned int nr) | |
796 | { | |
797 | __io_u_mark_map(td->ts.io_u_submit, nr); | |
798 | td->ts.total_submit++; | |
799 | } | |
800 | ||
801 | void io_u_mark_complete(struct thread_data *td, unsigned int nr) | |
802 | { | |
803 | __io_u_mark_map(td->ts.io_u_complete, nr); | |
804 | td->ts.total_complete++; | |
805 | } | |
806 | ||
d8005759 | 807 | void io_u_mark_depth(struct thread_data *td, unsigned int nr) |
71619dc2 | 808 | { |
2b13e716 | 809 | int idx = 0; |
71619dc2 JA |
810 | |
811 | switch (td->cur_depth) { | |
812 | default: | |
2b13e716 | 813 | idx = 6; |
a783e61a | 814 | break; |
71619dc2 | 815 | case 32 ... 63: |
2b13e716 | 816 | idx = 5; |
a783e61a | 817 | break; |
71619dc2 | 818 | case 16 ... 31: |
2b13e716 | 819 | idx = 4; |
a783e61a | 820 | break; |
71619dc2 | 821 | case 8 ... 15: |
2b13e716 | 822 | idx = 3; |
a783e61a | 823 | break; |
71619dc2 | 824 | case 4 ... 7: |
2b13e716 | 825 | idx = 2; |
a783e61a | 826 | break; |
71619dc2 | 827 | case 2 ... 3: |
2b13e716 | 828 | idx = 1; |
71619dc2 JA |
829 | case 1: |
830 | break; | |
831 | } | |
832 | ||
2b13e716 | 833 | td->ts.io_u_map[idx] += nr; |
71619dc2 JA |
834 | } |
835 | ||
04a0feae JA |
836 | static void io_u_mark_lat_usec(struct thread_data *td, unsigned long usec) |
837 | { | |
2b13e716 | 838 | int idx = 0; |
04a0feae JA |
839 | |
840 | assert(usec < 1000); | |
841 | ||
842 | switch (usec) { | |
843 | case 750 ... 999: | |
2b13e716 | 844 | idx = 9; |
04a0feae JA |
845 | break; |
846 | case 500 ... 749: | |
2b13e716 | 847 | idx = 8; |
04a0feae JA |
848 | break; |
849 | case 250 ... 499: | |
2b13e716 | 850 | idx = 7; |
04a0feae JA |
851 | break; |
852 | case 100 ... 249: | |
2b13e716 | 853 | idx = 6; |
04a0feae JA |
854 | break; |
855 | case 50 ... 99: | |
2b13e716 | 856 | idx = 5; |
04a0feae JA |
857 | break; |
858 | case 20 ... 49: | |
2b13e716 | 859 | idx = 4; |
04a0feae JA |
860 | break; |
861 | case 10 ... 19: | |
2b13e716 | 862 | idx = 3; |
04a0feae JA |
863 | break; |
864 | case 4 ... 9: | |
2b13e716 | 865 | idx = 2; |
04a0feae JA |
866 | break; |
867 | case 2 ... 3: | |
2b13e716 | 868 | idx = 1; |
04a0feae JA |
869 | case 0 ... 1: |
870 | break; | |
871 | } | |
872 | ||
2b13e716 JA |
873 | assert(idx < FIO_IO_U_LAT_U_NR); |
874 | td->ts.io_u_lat_u[idx]++; | |
04a0feae JA |
875 | } |
876 | ||
877 | static void io_u_mark_lat_msec(struct thread_data *td, unsigned long msec) | |
ec118304 | 878 | { |
2b13e716 | 879 | int idx = 0; |
ec118304 JA |
880 | |
881 | switch (msec) { | |
882 | default: | |
2b13e716 | 883 | idx = 11; |
04a0feae | 884 | break; |
8abdce66 | 885 | case 1000 ... 1999: |
2b13e716 | 886 | idx = 10; |
04a0feae | 887 | break; |
8abdce66 | 888 | case 750 ... 999: |
2b13e716 | 889 | idx = 9; |
04a0feae | 890 | break; |
8abdce66 | 891 | case 500 ... 749: |
2b13e716 | 892 | idx = 8; |
04a0feae | 893 | break; |
8abdce66 | 894 | case 250 ... 499: |
2b13e716 | 895 | idx = 7; |
04a0feae | 896 | break; |
8abdce66 | 897 | case 100 ... 249: |
2b13e716 | 898 | idx = 6; |
04a0feae | 899 | break; |
8abdce66 | 900 | case 50 ... 99: |
2b13e716 | 901 | idx = 5; |
04a0feae | 902 | break; |
8abdce66 | 903 | case 20 ... 49: |
2b13e716 | 904 | idx = 4; |
04a0feae | 905 | break; |
8abdce66 | 906 | case 10 ... 19: |
2b13e716 | 907 | idx = 3; |
04a0feae | 908 | break; |
8abdce66 | 909 | case 4 ... 9: |
2b13e716 | 910 | idx = 2; |
04a0feae | 911 | break; |
ec118304 | 912 | case 2 ... 3: |
2b13e716 | 913 | idx = 1; |
ec118304 JA |
914 | case 0 ... 1: |
915 | break; | |
916 | } | |
917 | ||
2b13e716 JA |
918 | assert(idx < FIO_IO_U_LAT_M_NR); |
919 | td->ts.io_u_lat_m[idx]++; | |
04a0feae JA |
920 | } |
921 | ||
922 | static void io_u_mark_latency(struct thread_data *td, unsigned long usec) | |
923 | { | |
924 | if (usec < 1000) | |
925 | io_u_mark_lat_usec(td, usec); | |
926 | else | |
927 | io_u_mark_lat_msec(td, usec / 1000); | |
ec118304 JA |
928 | } |
929 | ||
0aabe160 JA |
930 | /* |
931 | * Get next file to service by choosing one at random | |
932 | */ | |
2cc52930 JA |
933 | static struct fio_file *get_next_file_rand(struct thread_data *td, |
934 | enum fio_file_flags goodf, | |
d6aed795 | 935 | enum fio_file_flags badf) |
0aabe160 | 936 | { |
0aabe160 | 937 | struct fio_file *f; |
1c178180 | 938 | int fno; |
0aabe160 JA |
939 | |
940 | do { | |
87b10676 | 941 | int opened = 0; |
1294c3ec | 942 | unsigned long r; |
4c07ad86 JA |
943 | |
944 | if (td->o.use_os_rand) { | |
945 | r = os_random_long(&td->next_file_state); | |
946 | fno = (unsigned int) ((double) td->o.nr_files | |
947 | * (r / (OS_RAND_MAX + 1.0))); | |
948 | } else { | |
949 | r = __rand(&td->__next_file_state); | |
950 | fno = (unsigned int) ((double) td->o.nr_files | |
951 | * (r / (FRAND_MAX + 1.0))); | |
952 | } | |
7c83c089 | 953 | |
126d65c6 | 954 | f = td->files[fno]; |
d6aed795 | 955 | if (fio_file_done(f)) |
059e63c0 | 956 | continue; |
1c178180 | 957 | |
d6aed795 | 958 | if (!fio_file_open(f)) { |
87b10676 JA |
959 | int err; |
960 | ||
961 | err = td_io_open_file(td, f); | |
962 | if (err) | |
963 | continue; | |
964 | opened = 1; | |
965 | } | |
966 | ||
2ba1c290 JA |
967 | if ((!goodf || (f->flags & goodf)) && !(f->flags & badf)) { |
968 | dprint(FD_FILE, "get_next_file_rand: %p\n", f); | |
0aabe160 | 969 | return f; |
2ba1c290 | 970 | } |
87b10676 JA |
971 | if (opened) |
972 | td_io_close_file(td, f); | |
0aabe160 JA |
973 | } while (1); |
974 | } | |
975 | ||
976 | /* | |
977 | * Get next file to service by doing round robin between all available ones | |
978 | */ | |
1c178180 JA |
979 | static struct fio_file *get_next_file_rr(struct thread_data *td, int goodf, |
980 | int badf) | |
3d7c391d JA |
981 | { |
982 | unsigned int old_next_file = td->next_file; | |
983 | struct fio_file *f; | |
984 | ||
985 | do { | |
87b10676 JA |
986 | int opened = 0; |
987 | ||
126d65c6 | 988 | f = td->files[td->next_file]; |
3d7c391d JA |
989 | |
990 | td->next_file++; | |
2dc1bbeb | 991 | if (td->next_file >= td->o.nr_files) |
3d7c391d JA |
992 | td->next_file = 0; |
993 | ||
87b10676 | 994 | dprint(FD_FILE, "trying file %s %x\n", f->file_name, f->flags); |
d6aed795 | 995 | if (fio_file_done(f)) { |
d5ed68ea | 996 | f = NULL; |
059e63c0 | 997 | continue; |
d5ed68ea | 998 | } |
059e63c0 | 999 | |
d6aed795 | 1000 | if (!fio_file_open(f)) { |
87b10676 JA |
1001 | int err; |
1002 | ||
1003 | err = td_io_open_file(td, f); | |
b5696bfc JA |
1004 | if (err) { |
1005 | dprint(FD_FILE, "error %d on open of %s\n", | |
1006 | err, f->file_name); | |
87c27b45 | 1007 | f = NULL; |
87b10676 | 1008 | continue; |
b5696bfc | 1009 | } |
87b10676 JA |
1010 | opened = 1; |
1011 | } | |
1012 | ||
0b9d69ec JA |
1013 | dprint(FD_FILE, "goodf=%x, badf=%x, ff=%x\n", goodf, badf, |
1014 | f->flags); | |
1c178180 | 1015 | if ((!goodf || (f->flags & goodf)) && !(f->flags & badf)) |
3d7c391d JA |
1016 | break; |
1017 | ||
87b10676 JA |
1018 | if (opened) |
1019 | td_io_close_file(td, f); | |
1020 | ||
3d7c391d JA |
1021 | f = NULL; |
1022 | } while (td->next_file != old_next_file); | |
1023 | ||
2ba1c290 | 1024 | dprint(FD_FILE, "get_next_file_rr: %p\n", f); |
3d7c391d JA |
1025 | return f; |
1026 | } | |
1027 | ||
7eb36574 | 1028 | static struct fio_file *__get_next_file(struct thread_data *td) |
bdb4e2e9 | 1029 | { |
1907dbc6 JA |
1030 | struct fio_file *f; |
1031 | ||
2dc1bbeb | 1032 | assert(td->o.nr_files <= td->files_index); |
1c178180 | 1033 | |
b5696bfc | 1034 | if (td->nr_done_files >= td->o.nr_files) { |
5ec10eaa JA |
1035 | dprint(FD_FILE, "get_next_file: nr_open=%d, nr_done=%d," |
1036 | " nr_files=%d\n", td->nr_open_files, | |
1037 | td->nr_done_files, | |
1038 | td->o.nr_files); | |
bdb4e2e9 | 1039 | return NULL; |
2ba1c290 | 1040 | } |
bdb4e2e9 | 1041 | |
1907dbc6 | 1042 | f = td->file_service_file; |
d6aed795 | 1043 | if (f && fio_file_open(f) && !fio_file_closing(f)) { |
a086c257 JA |
1044 | if (td->o.file_service_type == FIO_FSERVICE_SEQ) |
1045 | goto out; | |
1046 | if (td->file_service_left--) | |
1047 | goto out; | |
1048 | } | |
1907dbc6 | 1049 | |
a086c257 JA |
1050 | if (td->o.file_service_type == FIO_FSERVICE_RR || |
1051 | td->o.file_service_type == FIO_FSERVICE_SEQ) | |
d6aed795 | 1052 | f = get_next_file_rr(td, FIO_FILE_open, FIO_FILE_closing); |
bdb4e2e9 | 1053 | else |
d6aed795 | 1054 | f = get_next_file_rand(td, FIO_FILE_open, FIO_FILE_closing); |
1907dbc6 JA |
1055 | |
1056 | td->file_service_file = f; | |
1057 | td->file_service_left = td->file_service_nr - 1; | |
2ba1c290 | 1058 | out: |
683023e8 | 1059 | dprint(FD_FILE, "get_next_file: %p [%s]\n", f, f->file_name); |
1907dbc6 | 1060 | return f; |
bdb4e2e9 JA |
1061 | } |
1062 | ||
7eb36574 JA |
1063 | static struct fio_file *get_next_file(struct thread_data *td) |
1064 | { | |
d72be545 JA |
1065 | if (!(td->flags & TD_F_PROFILE_OPS)) { |
1066 | struct prof_io_ops *ops = &td->prof_io_ops; | |
7eb36574 | 1067 | |
d72be545 JA |
1068 | if (ops->get_next_file) |
1069 | return ops->get_next_file(td); | |
1070 | } | |
7eb36574 JA |
1071 | |
1072 | return __get_next_file(td); | |
1073 | } | |
1074 | ||
429f6675 JA |
1075 | static int set_io_u_file(struct thread_data *td, struct io_u *io_u) |
1076 | { | |
1077 | struct fio_file *f; | |
1078 | ||
1079 | do { | |
1080 | f = get_next_file(td); | |
1081 | if (!f) | |
1082 | return 1; | |
1083 | ||
429f6675 JA |
1084 | io_u->file = f; |
1085 | get_file(f); | |
1086 | ||
1087 | if (!fill_io_u(td, io_u)) | |
1088 | break; | |
1089 | ||
b5696bfc | 1090 | put_file_log(td, f); |
429f6675 | 1091 | td_io_close_file(td, f); |
b5696bfc | 1092 | io_u->file = NULL; |
d6aed795 | 1093 | fio_file_set_done(f); |
429f6675 | 1094 | td->nr_done_files++; |
0b9d69ec JA |
1095 | dprint(FD_FILE, "%s: is done (%d of %d)\n", f->file_name, |
1096 | td->nr_done_files, td->o.nr_files); | |
429f6675 JA |
1097 | } while (1); |
1098 | ||
1099 | return 0; | |
1100 | } | |
1101 | ||
1102 | ||
10ba535a JA |
1103 | struct io_u *__get_io_u(struct thread_data *td) |
1104 | { | |
1105 | struct io_u *io_u = NULL; | |
1106 | ||
e8462bd8 JA |
1107 | td_io_u_lock(td); |
1108 | ||
1109 | again: | |
01743ee1 JA |
1110 | if (!flist_empty(&td->io_u_requeues)) |
1111 | io_u = flist_entry(td->io_u_requeues.next, struct io_u, list); | |
755200a3 | 1112 | else if (!queue_full(td)) { |
01743ee1 | 1113 | io_u = flist_entry(td->io_u_freelist.next, struct io_u, list); |
10ba535a | 1114 | |
6040dabc | 1115 | io_u->buflen = 0; |
10ba535a | 1116 | io_u->resid = 0; |
755200a3 | 1117 | io_u->file = NULL; |
d7762cf8 | 1118 | io_u->end_io = NULL; |
755200a3 JA |
1119 | } |
1120 | ||
1121 | if (io_u) { | |
0c6e7517 | 1122 | assert(io_u->flags & IO_U_F_FREE); |
2ecc1b57 | 1123 | io_u->flags &= ~(IO_U_F_FREE | IO_U_F_FREE_DEF); |
1ef2b6be | 1124 | io_u->flags &= ~(IO_U_F_TRIMMED | IO_U_F_BARRIER); |
82af2a7c | 1125 | io_u->flags &= ~IO_U_F_VER_LIST; |
0c6e7517 | 1126 | |
755200a3 | 1127 | io_u->error = 0; |
bcd5abfa | 1128 | io_u->acct_ddir = -1; |
01743ee1 | 1129 | flist_del(&io_u->list); |
94c6372c | 1130 | flist_add_tail(&io_u->list, &td->io_u_busylist); |
10ba535a | 1131 | td->cur_depth++; |
0c41214f | 1132 | io_u->flags |= IO_U_F_IN_CUR_DEPTH; |
1dec3e07 JA |
1133 | } else if (td->o.verify_async) { |
1134 | /* | |
1135 | * We ran out, wait for async verify threads to finish and | |
1136 | * return one | |
1137 | */ | |
1138 | pthread_cond_wait(&td->free_cond, &td->io_u_lock); | |
1139 | goto again; | |
10ba535a JA |
1140 | } |
1141 | ||
e8462bd8 | 1142 | td_io_u_unlock(td); |
10ba535a JA |
1143 | return io_u; |
1144 | } | |
1145 | ||
0d29de83 | 1146 | static int check_get_trim(struct thread_data *td, struct io_u *io_u) |
10ba535a | 1147 | { |
d72be545 JA |
1148 | if (!(td->flags & TD_F_TRIM_BACKLOG)) |
1149 | return 0; | |
1150 | ||
1151 | if (td->trim_entries) { | |
0d29de83 | 1152 | int get_trim = 0; |
10ba535a | 1153 | |
0d29de83 JA |
1154 | if (td->trim_batch) { |
1155 | td->trim_batch--; | |
1156 | get_trim = 1; | |
1157 | } else if (!(td->io_hist_len % td->o.trim_backlog) && | |
1158 | td->last_ddir != DDIR_READ) { | |
1159 | td->trim_batch = td->o.trim_batch; | |
1160 | if (!td->trim_batch) | |
1161 | td->trim_batch = td->o.trim_backlog; | |
1162 | get_trim = 1; | |
1163 | } | |
1164 | ||
1165 | if (get_trim && !get_next_trim(td, io_u)) | |
1166 | return 1; | |
2ba1c290 | 1167 | } |
10ba535a | 1168 | |
0d29de83 JA |
1169 | return 0; |
1170 | } | |
1171 | ||
1172 | static int check_get_verify(struct thread_data *td, struct io_u *io_u) | |
1173 | { | |
d72be545 JA |
1174 | if (!(td->flags & TD_F_VER_BACKLOG)) |
1175 | return 0; | |
1176 | ||
1177 | if (td->io_hist_len) { | |
9e144189 JA |
1178 | int get_verify = 0; |
1179 | ||
d1ece0c7 | 1180 | if (td->verify_batch) |
9e144189 | 1181 | get_verify = 1; |
d1ece0c7 | 1182 | else if (!(td->io_hist_len % td->o.verify_backlog) && |
9e144189 JA |
1183 | td->last_ddir != DDIR_READ) { |
1184 | td->verify_batch = td->o.verify_batch; | |
f8a75c99 JA |
1185 | if (!td->verify_batch) |
1186 | td->verify_batch = td->o.verify_backlog; | |
9e144189 JA |
1187 | get_verify = 1; |
1188 | } | |
1189 | ||
d1ece0c7 JA |
1190 | if (get_verify && !get_next_verify(td, io_u)) { |
1191 | td->verify_batch--; | |
0d29de83 | 1192 | return 1; |
d1ece0c7 | 1193 | } |
9e144189 JA |
1194 | } |
1195 | ||
0d29de83 JA |
1196 | return 0; |
1197 | } | |
1198 | ||
de789769 JA |
1199 | /* |
1200 | * Fill offset and start time into the buffer content, to prevent too | |
23f394d5 JA |
1201 | * easy compressible data for simple de-dupe attempts. Do this for every |
1202 | * 512b block in the range, since that should be the smallest block size | |
1203 | * we can expect from a device. | |
de789769 JA |
1204 | */ |
1205 | static void small_content_scramble(struct io_u *io_u) | |
1206 | { | |
23f394d5 | 1207 | unsigned int i, nr_blocks = io_u->buflen / 512; |
1ae83d45 | 1208 | uint64_t boffset; |
23f394d5 JA |
1209 | unsigned int offset; |
1210 | void *p, *end; | |
de789769 | 1211 | |
23f394d5 JA |
1212 | if (!nr_blocks) |
1213 | return; | |
1214 | ||
1215 | p = io_u->xfer_buf; | |
fba76ee8 | 1216 | boffset = io_u->offset; |
81f0366c | 1217 | io_u->buf_filled_len = 0; |
fad82f76 | 1218 | |
23f394d5 JA |
1219 | for (i = 0; i < nr_blocks; i++) { |
1220 | /* | |
1221 | * Fill the byte offset into a "random" start offset of | |
1222 | * the buffer, given by the product of the usec time | |
1223 | * and the actual offset. | |
1224 | */ | |
fad82f76 | 1225 | offset = (io_u->start_time.tv_usec ^ boffset) & 511; |
1ae83d45 JA |
1226 | offset &= ~(sizeof(uint64_t) - 1); |
1227 | if (offset >= 512 - sizeof(uint64_t)) | |
1228 | offset -= sizeof(uint64_t); | |
fba76ee8 | 1229 | memcpy(p + offset, &boffset, sizeof(boffset)); |
23f394d5 JA |
1230 | |
1231 | end = p + 512 - sizeof(io_u->start_time); | |
1232 | memcpy(end, &io_u->start_time, sizeof(io_u->start_time)); | |
1233 | p += 512; | |
fad82f76 | 1234 | boffset += 512; |
23f394d5 | 1235 | } |
de789769 JA |
1236 | } |
1237 | ||
0d29de83 JA |
1238 | /* |
1239 | * Return an io_u to be processed. Gets a buflen and offset, sets direction, | |
1240 | * etc. The returned io_u is fully ready to be prepped and submitted. | |
1241 | */ | |
1242 | struct io_u *get_io_u(struct thread_data *td) | |
1243 | { | |
1244 | struct fio_file *f; | |
1245 | struct io_u *io_u; | |
de789769 | 1246 | int do_scramble = 0; |
0d29de83 JA |
1247 | |
1248 | io_u = __get_io_u(td); | |
1249 | if (!io_u) { | |
1250 | dprint(FD_IO, "__get_io_u failed\n"); | |
1251 | return NULL; | |
1252 | } | |
1253 | ||
1254 | if (check_get_verify(td, io_u)) | |
1255 | goto out; | |
1256 | if (check_get_trim(td, io_u)) | |
1257 | goto out; | |
1258 | ||
755200a3 JA |
1259 | /* |
1260 | * from a requeue, io_u already setup | |
1261 | */ | |
1262 | if (io_u->file) | |
77f392bf | 1263 | goto out; |
755200a3 | 1264 | |
429f6675 JA |
1265 | /* |
1266 | * If using an iolog, grab next piece if any available. | |
1267 | */ | |
d72be545 | 1268 | if (td->flags & TD_F_READ_IOLOG) { |
429f6675 JA |
1269 | if (read_iolog_get(td, io_u)) |
1270 | goto err_put; | |
2ba1c290 JA |
1271 | } else if (set_io_u_file(td, io_u)) { |
1272 | dprint(FD_IO, "io_u %p, setting file failed\n", io_u); | |
429f6675 | 1273 | goto err_put; |
2ba1c290 | 1274 | } |
5ec10eaa | 1275 | |
429f6675 | 1276 | f = io_u->file; |
d6aed795 | 1277 | assert(fio_file_open(f)); |
97af62ce | 1278 | |
ff58fced | 1279 | if (ddir_rw(io_u->ddir)) { |
d0656a93 | 1280 | if (!io_u->buflen && !(td->io_ops->flags & FIO_NOIO)) { |
2ba1c290 | 1281 | dprint(FD_IO, "get_io_u: zero buflen on %p\n", io_u); |
429f6675 | 1282 | goto err_put; |
2ba1c290 | 1283 | } |
10ba535a | 1284 | |
38dad62d | 1285 | f->last_start = io_u->offset; |
36167d82 | 1286 | f->last_pos = io_u->offset + io_u->buflen; |
10ba535a | 1287 | |
fd68418e | 1288 | if (io_u->ddir == DDIR_WRITE) { |
d72be545 | 1289 | if (td->flags & TD_F_REFILL_BUFFERS) { |
9c42684e JA |
1290 | io_u_fill_buffer(td, io_u, |
1291 | io_u->xfer_buflen, io_u->xfer_buflen); | |
d72be545 | 1292 | } else if (td->flags & TD_F_SCRAMBLE_BUFFERS) |
fd68418e | 1293 | do_scramble = 1; |
d72be545 | 1294 | if (td->flags & TD_F_VER_NONE) { |
629f1d71 JA |
1295 | populate_verify_io_u(td, io_u); |
1296 | do_scramble = 0; | |
1297 | } | |
fd68418e | 1298 | } else if (io_u->ddir == DDIR_READ) { |
cbe8d756 RR |
1299 | /* |
1300 | * Reset the buf_filled parameters so next time if the | |
1301 | * buffer is used for writes it is refilled. | |
1302 | */ | |
cbe8d756 RR |
1303 | io_u->buf_filled_len = 0; |
1304 | } | |
87dc1ab1 | 1305 | } |
10ba535a | 1306 | |
165faf16 JA |
1307 | /* |
1308 | * Set io data pointers. | |
1309 | */ | |
cec6b55d JA |
1310 | io_u->xfer_buf = io_u->buf; |
1311 | io_u->xfer_buflen = io_u->buflen; | |
5973cafb | 1312 | |
6ac7a331 | 1313 | out: |
0d29de83 | 1314 | assert(io_u->file); |
429f6675 | 1315 | if (!td_io_prep(td, io_u)) { |
993bf48b JA |
1316 | if (!td->o.disable_slat) |
1317 | fio_gettime(&io_u->start_time, NULL); | |
de789769 JA |
1318 | if (do_scramble) |
1319 | small_content_scramble(io_u); | |
429f6675 | 1320 | return io_u; |
36167d82 | 1321 | } |
429f6675 | 1322 | err_put: |
2ba1c290 | 1323 | dprint(FD_IO, "get_io_u failed\n"); |
429f6675 JA |
1324 | put_io_u(td, io_u); |
1325 | return NULL; | |
10ba535a JA |
1326 | } |
1327 | ||
5451792e JA |
1328 | void io_u_log_error(struct thread_data *td, struct io_u *io_u) |
1329 | { | |
8b28bd41 | 1330 | enum error_type_bit eb = td_error_type(io_u->ddir, io_u->error); |
825f818e JA |
1331 | const char *msg[] = { "read", "write", "sync", "datasync", |
1332 | "sync_file_range", "wait", "trim" }; | |
1333 | ||
8b28bd41 DM |
1334 | if (td_non_fatal_error(td, eb, io_u->error) && !td->o.error_dump) |
1335 | return; | |
5451792e JA |
1336 | |
1337 | log_err("fio: io_u error"); | |
1338 | ||
1339 | if (io_u->file) | |
1340 | log_err(" on file %s", io_u->file->file_name); | |
1341 | ||
1342 | log_err(": %s\n", strerror(io_u->error)); | |
1343 | ||
5ec10eaa JA |
1344 | log_err(" %s offset=%llu, buflen=%lu\n", msg[io_u->ddir], |
1345 | io_u->offset, io_u->xfer_buflen); | |
5451792e JA |
1346 | |
1347 | if (!td->error) | |
1348 | td_verror(td, io_u->error, "io_u error"); | |
1349 | } | |
1350 | ||
c8eeb9df JA |
1351 | static void account_io_completion(struct thread_data *td, struct io_u *io_u, |
1352 | struct io_completion_data *icd, | |
1353 | const enum fio_ddir idx, unsigned int bytes) | |
1354 | { | |
24d23ca7 | 1355 | unsigned long lusec = 0; |
c8eeb9df | 1356 | |
c8eeb9df JA |
1357 | if (!td->o.disable_clat || !td->o.disable_bw) |
1358 | lusec = utime_since(&io_u->issue_time, &icd->time); | |
1359 | ||
1360 | if (!td->o.disable_lat) { | |
1361 | unsigned long tusec; | |
1362 | ||
1363 | tusec = utime_since(&io_u->start_time, &icd->time); | |
1364 | add_lat_sample(td, idx, tusec, bytes); | |
15501535 JA |
1365 | |
1366 | if (td->o.max_latency && tusec > td->o.max_latency) { | |
1367 | if (!td->error) | |
1368 | log_err("fio: latency of %lu usec exceeds specified max (%u usec)\n", tusec, td->o.max_latency); | |
c5b3adc4 JA |
1369 | td_verror(td, ETIMEDOUT, "max latency exceeded"); |
1370 | icd->error = ETIMEDOUT; | |
15501535 | 1371 | } |
c8eeb9df JA |
1372 | } |
1373 | ||
1374 | if (!td->o.disable_clat) { | |
1375 | add_clat_sample(td, idx, lusec, bytes); | |
1376 | io_u_mark_latency(td, lusec); | |
1377 | } | |
1378 | ||
1379 | if (!td->o.disable_bw) | |
1380 | add_bw_sample(td, idx, bytes, &icd->time); | |
1381 | ||
1382 | add_iops_sample(td, idx, &icd->time); | |
1383 | } | |
1384 | ||
1b8dbf25 SL |
1385 | static long long usec_for_io(struct thread_data *td, enum fio_ddir ddir) |
1386 | { | |
1ae83d45 JA |
1387 | uint64_t secs, remainder, bps, bytes; |
1388 | ||
1b8dbf25 SL |
1389 | bytes = td->this_io_bytes[ddir]; |
1390 | bps = td->rate_bps[ddir]; | |
1391 | secs = bytes / bps; | |
1392 | remainder = bytes % bps; | |
1393 | return remainder * 1000000 / bps + secs * 1000000; | |
1394 | } | |
1395 | ||
97601024 JA |
1396 | static void io_completed(struct thread_data *td, struct io_u *io_u, |
1397 | struct io_completion_data *icd) | |
10ba535a | 1398 | { |
44f29692 | 1399 | struct fio_file *f; |
10ba535a | 1400 | |
2ba1c290 JA |
1401 | dprint_io_u(io_u, "io complete"); |
1402 | ||
2ecc1b57 | 1403 | td_io_u_lock(td); |
0c6e7517 | 1404 | assert(io_u->flags & IO_U_F_FLIGHT); |
38dad62d | 1405 | io_u->flags &= ~(IO_U_F_FLIGHT | IO_U_F_BUSY_OK); |
2ecc1b57 | 1406 | td_io_u_unlock(td); |
0c6e7517 | 1407 | |
5f9099ea | 1408 | if (ddir_sync(io_u->ddir)) { |
87dc1ab1 | 1409 | td->last_was_sync = 1; |
44f29692 JA |
1410 | f = io_u->file; |
1411 | if (f) { | |
1412 | f->first_write = -1ULL; | |
1413 | f->last_write = -1ULL; | |
1414 | } | |
87dc1ab1 JA |
1415 | return; |
1416 | } | |
1417 | ||
1418 | td->last_was_sync = 0; | |
9e144189 | 1419 | td->last_ddir = io_u->ddir; |
87dc1ab1 | 1420 | |
ff58fced | 1421 | if (!io_u->error && ddir_rw(io_u->ddir)) { |
10ba535a | 1422 | unsigned int bytes = io_u->buflen - io_u->resid; |
1e97cce9 | 1423 | const enum fio_ddir idx = io_u->ddir; |
ba3e4e0c | 1424 | const enum fio_ddir odx = io_u->ddir ^ 1; |
b29ee5b3 | 1425 | int ret; |
10ba535a | 1426 | |
b29ee5b3 | 1427 | td->io_blocks[idx]++; |
c8eeb9df | 1428 | td->this_io_blocks[idx]++; |
b29ee5b3 | 1429 | td->io_bytes[idx] += bytes; |
ae2fafc8 | 1430 | |
1431 | if (!(io_u->flags & IO_U_F_VER_LIST)) | |
1432 | td->this_io_bytes[idx] += bytes; | |
10ba535a | 1433 | |
44f29692 JA |
1434 | if (idx == DDIR_WRITE) { |
1435 | f = io_u->file; | |
1436 | if (f) { | |
1437 | if (f->first_write == -1ULL || | |
1438 | io_u->offset < f->first_write) | |
1439 | f->first_write = io_u->offset; | |
1440 | if (f->last_write == -1ULL || | |
1441 | ((io_u->offset + bytes) > f->last_write)) | |
1442 | f->last_write = io_u->offset + bytes; | |
1443 | } | |
1444 | } | |
1445 | ||
6b1190fd SL |
1446 | if (ramp_time_over(td) && (td->runstate == TD_RUNNING || |
1447 | td->runstate == TD_VERIFYING)) { | |
c8eeb9df | 1448 | account_io_completion(td, io_u, icd, idx, bytes); |
40e1a6f0 | 1449 | |
b23b6a2f | 1450 | if (__should_check_rate(td, idx)) { |
ba3e4e0c | 1451 | td->rate_pending_usleep[idx] = |
1b8dbf25 | 1452 | (usec_for_io(td, idx) - |
ba3e4e0c | 1453 | utime_since_now(&td->start)); |
b23b6a2f | 1454 | } |
6eaf09d6 | 1455 | if (idx != DDIR_TRIM && __should_check_rate(td, odx)) |
ba3e4e0c | 1456 | td->rate_pending_usleep[odx] = |
1b8dbf25 | 1457 | (usec_for_io(td, odx) - |
ba3e4e0c | 1458 | utime_since_now(&td->start)); |
721938ae | 1459 | } |
10ba535a | 1460 | |
660a1cb5 | 1461 | if (td_write(td) && idx == DDIR_WRITE && |
8670579e | 1462 | td->o.do_verify && |
44cbc6da JA |
1463 | td->o.verify != VERIFY_NONE && |
1464 | !td->o.experimental_verify) | |
10ba535a JA |
1465 | log_io_piece(td, io_u); |
1466 | ||
b29ee5b3 | 1467 | icd->bytes_done[idx] += bytes; |
3af6ef39 | 1468 | |
d7762cf8 | 1469 | if (io_u->end_io) { |
36690c9b | 1470 | ret = io_u->end_io(td, io_u); |
3af6ef39 JA |
1471 | if (ret && !icd->error) |
1472 | icd->error = ret; | |
1473 | } | |
ff58fced | 1474 | } else if (io_u->error) { |
10ba535a | 1475 | icd->error = io_u->error; |
5451792e JA |
1476 | io_u_log_error(td, io_u); |
1477 | } | |
8b28bd41 DM |
1478 | if (icd->error) { |
1479 | enum error_type_bit eb = td_error_type(io_u->ddir, icd->error); | |
1480 | if (!td_non_fatal_error(td, eb, icd->error)) | |
1481 | return; | |
f2bba182 RR |
1482 | /* |
1483 | * If there is a non_fatal error, then add to the error count | |
1484 | * and clear all the errors. | |
1485 | */ | |
1486 | update_error_count(td, icd->error); | |
1487 | td_clear_error(td); | |
1488 | icd->error = 0; | |
1489 | io_u->error = 0; | |
1490 | } | |
10ba535a JA |
1491 | } |
1492 | ||
9520ebb9 JA |
1493 | static void init_icd(struct thread_data *td, struct io_completion_data *icd, |
1494 | int nr) | |
10ba535a | 1495 | { |
6eaf09d6 | 1496 | int ddir; |
9520ebb9 JA |
1497 | if (!td->o.disable_clat || !td->o.disable_bw) |
1498 | fio_gettime(&icd->time, NULL); | |
02bcaa8c | 1499 | |
3af6ef39 JA |
1500 | icd->nr = nr; |
1501 | ||
10ba535a | 1502 | icd->error = 0; |
6eaf09d6 SL |
1503 | for (ddir = DDIR_READ; ddir < DDIR_RWDIR_CNT; ddir++) |
1504 | icd->bytes_done[ddir] = 0; | |
36167d82 JA |
1505 | } |
1506 | ||
97601024 JA |
1507 | static void ios_completed(struct thread_data *td, |
1508 | struct io_completion_data *icd) | |
36167d82 JA |
1509 | { |
1510 | struct io_u *io_u; | |
1511 | int i; | |
1512 | ||
10ba535a JA |
1513 | for (i = 0; i < icd->nr; i++) { |
1514 | io_u = td->io_ops->event(td, i); | |
1515 | ||
1516 | io_completed(td, io_u, icd); | |
e8462bd8 JA |
1517 | |
1518 | if (!(io_u->flags & IO_U_F_FREE_DEF)) | |
1519 | put_io_u(td, io_u); | |
10ba535a JA |
1520 | } |
1521 | } | |
97601024 | 1522 | |
e7e6cfb4 JA |
1523 | /* |
1524 | * Complete a single io_u for the sync engines. | |
1525 | */ | |
581e7141 | 1526 | int io_u_sync_complete(struct thread_data *td, struct io_u *io_u, |
100f49f1 | 1527 | uint64_t *bytes) |
97601024 JA |
1528 | { |
1529 | struct io_completion_data icd; | |
1530 | ||
9520ebb9 | 1531 | init_icd(td, &icd, 1); |
97601024 | 1532 | io_completed(td, io_u, &icd); |
e8462bd8 JA |
1533 | |
1534 | if (!(io_u->flags & IO_U_F_FREE_DEF)) | |
1535 | put_io_u(td, io_u); | |
97601024 | 1536 | |
581e7141 JA |
1537 | if (icd.error) { |
1538 | td_verror(td, icd.error, "io_u_sync_complete"); | |
1539 | return -1; | |
1540 | } | |
97601024 | 1541 | |
581e7141 | 1542 | if (bytes) { |
6eaf09d6 SL |
1543 | int ddir; |
1544 | ||
1545 | for (ddir = DDIR_READ; ddir < DDIR_RWDIR_CNT; ddir++) | |
1546 | bytes[ddir] += icd.bytes_done[ddir]; | |
581e7141 JA |
1547 | } |
1548 | ||
1549 | return 0; | |
97601024 JA |
1550 | } |
1551 | ||
e7e6cfb4 JA |
1552 | /* |
1553 | * Called to complete min_events number of io for the async engines. | |
1554 | */ | |
581e7141 | 1555 | int io_u_queued_complete(struct thread_data *td, int min_evts, |
100f49f1 | 1556 | uint64_t *bytes) |
97601024 | 1557 | { |
97601024 | 1558 | struct io_completion_data icd; |
00de55ef | 1559 | struct timespec *tvp = NULL; |
97601024 | 1560 | int ret; |
4d06a338 | 1561 | struct timespec ts = { .tv_sec = 0, .tv_nsec = 0, }; |
97601024 | 1562 | |
4950421a | 1563 | dprint(FD_IO, "io_u_queued_completed: min=%d\n", min_evts); |
b271fe62 | 1564 | |
4950421a | 1565 | if (!min_evts) |
00de55ef | 1566 | tvp = &ts; |
97601024 | 1567 | |
4950421a | 1568 | ret = td_io_getevents(td, min_evts, td->o.iodepth_batch_complete, tvp); |
97601024 | 1569 | if (ret < 0) { |
e1161c32 | 1570 | td_verror(td, -ret, "td_io_getevents"); |
97601024 JA |
1571 | return ret; |
1572 | } else if (!ret) | |
1573 | return ret; | |
1574 | ||
9520ebb9 | 1575 | init_icd(td, &icd, ret); |
97601024 | 1576 | ios_completed(td, &icd); |
581e7141 JA |
1577 | if (icd.error) { |
1578 | td_verror(td, icd.error, "io_u_queued_complete"); | |
1579 | return -1; | |
1580 | } | |
97601024 | 1581 | |
581e7141 | 1582 | if (bytes) { |
6eaf09d6 SL |
1583 | int ddir; |
1584 | ||
1585 | for (ddir = DDIR_READ; ddir < DDIR_RWDIR_CNT; ddir++) | |
1586 | bytes[ddir] += icd.bytes_done[ddir]; | |
581e7141 JA |
1587 | } |
1588 | ||
1589 | return 0; | |
97601024 | 1590 | } |
7e77dd02 JA |
1591 | |
1592 | /* | |
1593 | * Call when io_u is really queued, to update the submission latency. | |
1594 | */ | |
1595 | void io_u_queued(struct thread_data *td, struct io_u *io_u) | |
1596 | { | |
9520ebb9 JA |
1597 | if (!td->o.disable_slat) { |
1598 | unsigned long slat_time; | |
7e77dd02 | 1599 | |
9520ebb9 | 1600 | slat_time = utime_since(&io_u->start_time, &io_u->issue_time); |
29a90ddb | 1601 | add_slat_sample(td, io_u->ddir, slat_time, io_u->xfer_buflen); |
9520ebb9 | 1602 | } |
7e77dd02 | 1603 | } |
433afcb4 | 1604 | |
5973cafb JA |
1605 | /* |
1606 | * "randomly" fill the buffer contents | |
1607 | */ | |
1608 | void io_u_fill_buffer(struct thread_data *td, struct io_u *io_u, | |
9c42684e | 1609 | unsigned int min_write, unsigned int max_bs) |
5973cafb | 1610 | { |
e84b371e JA |
1611 | io_u->buf_filled_len = 0; |
1612 | ||
9c42684e JA |
1613 | if (!td->o.zero_buffers) { |
1614 | unsigned int perc = td->o.compress_percentage; | |
1615 | ||
1616 | if (perc) { | |
f97a43a1 JA |
1617 | unsigned int seg = min_write; |
1618 | ||
1619 | seg = min(min_write, td->o.compress_chunk); | |
9c42684e | 1620 | fill_random_buf_percentage(&td->buf_state, io_u->buf, |
f97a43a1 | 1621 | perc, seg, max_bs); |
9c42684e JA |
1622 | } else |
1623 | fill_random_buf(&td->buf_state, io_u->buf, max_bs); | |
1624 | } else | |
637ef8d9 | 1625 | memset(io_u->buf, 0, max_bs); |
5973cafb | 1626 | } |