blob: 612057d15762dfa13e7e48bc48e99658f9e8880a [file] [log] [blame]
Jens Axboe10ba5352006-10-20 11:39:27 +02001#include <unistd.h>
2#include <fcntl.h>
3#include <string.h>
4#include <signal.h>
5#include <time.h>
Jens Axboe0c6e7512007-02-22 11:19:39 +01006#include <assert.h>
Jens Axboe10ba5352006-10-20 11:39:27 +02007
8#include "fio.h"
Jens Axboe5973caf2008-05-21 19:52:35 +02009#include "hash.h"
Jens Axboe4f5af7b2009-06-03 08:45:40 +020010#include "verify.h"
Jens Axboe0d29de82010-09-01 13:54:15 +020011#include "trim.h"
Jens Axboe1fbbf722010-03-25 23:03:18 +010012#include "lib/rand.h"
Jens Axboe7ebd7962012-11-28 21:24:46 +010013#include "lib/axmap.h"
Jens Axboe002fe732014-02-11 08:31:13 -070014#include "err.h"
Jens Axboe10ba5352006-10-20 11:39:27 +020015
Jens Axboe97601022007-02-18 12:47:29 +010016struct io_completion_data {
17 int nr; /* input */
Jens Axboe97601022007-02-18 12:47:29 +010018
19 int error; /* output */
Jens Axboe100f49f2013-01-23 10:15:57 -070020 uint64_t bytes_done[DDIR_RWDIR_CNT]; /* output */
Jens Axboe97601022007-02-18 12:47:29 +010021 struct timeval time; /* output */
22};
23
Jens Axboe10ba5352006-10-20 11:39:27 +020024/*
Jens Axboe7ebd7962012-11-28 21:24:46 +010025 * The ->io_axmap contains a map of blocks we have or have not done io
Jens Axboe10ba5352006-10-20 11:39:27 +020026 * to yet. Used to make sure we cover the entire range in a fair fashion.
27 */
Jens Axboe1ae83d42013-01-12 01:44:15 -070028static int random_map_free(struct fio_file *f, const uint64_t block)
Jens Axboe10ba5352006-10-20 11:39:27 +020029{
Jens Axboe7ebd7962012-11-28 21:24:46 +010030 return !axmap_isset(f->io_axmap, block);
Jens Axboe10ba5352006-10-20 11:39:27 +020031}
32
33/*
Jens Axboedf415582006-10-20 11:41:03 +020034 * Mark a given offset as used in the map.
35 */
Jens Axboe9bf20612007-03-01 09:33:57 +010036static void mark_random_map(struct thread_data *td, struct io_u *io_u)
Jens Axboedf415582006-10-20 11:41:03 +020037{
Jens Axboe2dc1bbe2007-03-15 15:01:33 +010038 unsigned int min_bs = td->o.rw_min_bs;
Jens Axboe9bf20612007-03-01 09:33:57 +010039 struct fio_file *f = io_u->file;
Jens Axboe51ede0b2012-11-22 13:50:29 +010040 unsigned int nr_blocks;
Jens Axboe1ae83d42013-01-12 01:44:15 -070041 uint64_t block;
Jens Axboedf415582006-10-20 11:41:03 +020042
Jens Axboe1ae83d42013-01-12 01:44:15 -070043 block = (io_u->offset - f->file_offset) / (uint64_t) min_bs;
Jens Axboec685b5b2007-02-10 20:02:28 +010044 nr_blocks = (io_u->buflen + min_bs - 1) / min_bs;
45
Jens Axboe2ab9e982012-11-22 15:14:17 +010046 if (!(io_u->flags & IO_U_F_BUSY_OK))
Jens Axboe7ebd7962012-11-28 21:24:46 +010047 nr_blocks = axmap_set_nr(f->io_axmap, block, nr_blocks);
Jens Axboedf415582006-10-20 11:41:03 +020048
Jens Axboe51ede0b2012-11-22 13:50:29 +010049 if ((nr_blocks * min_bs) < io_u->buflen)
50 io_u->buflen = nr_blocks * min_bs;
Jens Axboedf415582006-10-20 11:41:03 +020051}
52
Jens Axboe74776732013-01-11 14:03:25 +010053static uint64_t last_block(struct thread_data *td, struct fio_file *f,
54 enum fio_ddir ddir)
Jens Axboe2ba1c292008-02-01 13:16:38 +010055{
Jens Axboe74776732013-01-11 14:03:25 +010056 uint64_t max_blocks;
57 uint64_t max_size;
Jens Axboe2ba1c292008-02-01 13:16:38 +010058
Jens Axboeff58fce2010-08-25 12:02:08 +020059 assert(ddir_rw(ddir));
60
Jens Axboed9dd70f2008-05-23 12:37:23 +020061 /*
62 * Hmm, should we make sure that ->io_size <= ->real_file_size?
63 */
64 max_size = f->io_size;
65 if (max_size > f->real_file_size)
66 max_size = f->real_file_size;
67
Steven Noonaned335852012-01-31 13:58:00 +010068 if (td->o.zone_range)
69 max_size = td->o.zone_range;
70
Jens Axboe1ae83d42013-01-12 01:44:15 -070071 max_blocks = max_size / (uint64_t) td->o.ba[ddir];
Jens Axboe2ba1c292008-02-01 13:16:38 +010072 if (!max_blocks)
73 return 0;
74
Jens Axboe67778e82008-05-15 09:20:08 +020075 return max_blocks;
Jens Axboe2ba1c292008-02-01 13:16:38 +010076}
77
Jens Axboe1ae83d42013-01-12 01:44:15 -070078struct rand_off {
79 struct flist_head list;
80 uint64_t off;
81};
82
Jens Axboee25839d2012-11-06 10:49:42 +010083static int __get_next_rand_offset(struct thread_data *td, struct fio_file *f,
Jens Axboe1ae83d42013-01-12 01:44:15 -070084 enum fio_ddir ddir, uint64_t *b)
Jens Axboeec4015d2007-03-23 08:04:27 +010085{
Jens Axboe1ae83d42013-01-12 01:44:15 -070086 uint64_t r, lastb;
Jens Axboe74776732013-01-11 14:03:25 +010087
88 lastb = last_block(td, f, ddir);
89 if (!lastb)
90 return 1;
Jens Axboeec4015d2007-03-23 08:04:27 +010091
Jens Axboe8055e412012-11-26 08:43:47 +010092 if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE) {
Jens Axboe1ae83d42013-01-12 01:44:15 -070093 uint64_t rmax;
Jens Axboe15b87722011-10-12 09:42:33 +020094
Jens Axboe8055e412012-11-26 08:43:47 +010095 rmax = td->o.use_os_rand ? OS_RAND_MAX : FRAND_MAX;
96
97 if (td->o.use_os_rand) {
98 rmax = OS_RAND_MAX;
99 r = os_random_long(&td->random_state);
100 } else {
101 rmax = FRAND_MAX;
102 r = __rand(&td->__random_state);
103 }
104
Jens Axboe4b91ee82013-02-25 10:18:33 +0100105 dprint(FD_RANDOM, "off rand %llu\n", (unsigned long long) r);
Jens Axboe8055e412012-11-26 08:43:47 +0100106
Peter Oberparleiter80e88a12014-02-28 09:09:13 -0800107 *b = lastb * (r / ((uint64_t) rmax + 1.0));
Jens Axboe51ede0b2012-11-22 13:50:29 +0100108 } else {
Jens Axboe8055e412012-11-26 08:43:47 +0100109 uint64_t off = 0;
110
Jens Axboe74776732013-01-11 14:03:25 +0100111 if (lfsr_next(&f->lfsr, &off, lastb))
Jens Axboe8055e412012-11-26 08:43:47 +0100112 return 1;
113
114 *b = off;
Jens Axboe51ede0b2012-11-22 13:50:29 +0100115 }
Jens Axboe2615cc42011-03-28 09:35:09 +0200116
Jens Axboeec4015d2007-03-23 08:04:27 +0100117 /*
Jens Axboe51ede0b2012-11-22 13:50:29 +0100118 * if we are not maintaining a random map, we are done.
Jens Axboeec4015d2007-03-23 08:04:27 +0100119 */
Jens Axboe51ede0b2012-11-22 13:50:29 +0100120 if (!file_randommap(td, f))
121 goto ret;
Jens Axboe43c63a72007-05-21 13:23:30 +0200122
123 /*
Jens Axboe51ede0b2012-11-22 13:50:29 +0100124 * calculate map offset and check if it's free
Jens Axboe43c63a72007-05-21 13:23:30 +0200125 */
Jens Axboe51ede0b2012-11-22 13:50:29 +0100126 if (random_map_free(f, *b))
127 goto ret;
128
Jens Axboe4b91ee82013-02-25 10:18:33 +0100129 dprint(FD_RANDOM, "get_next_rand_offset: offset %llu busy\n",
130 (unsigned long long) *b);
Jens Axboe51ede0b2012-11-22 13:50:29 +0100131
Jens Axboe7ebd7962012-11-28 21:24:46 +0100132 *b = axmap_next_free(f->io_axmap, *b);
Jens Axboe51ede0b2012-11-22 13:50:29 +0100133 if (*b == (uint64_t) -1ULL)
134 return 1;
Jens Axboe0ce8b112011-01-27 22:25:29 +0100135ret:
136 return 0;
Jens Axboeec4015d2007-03-23 08:04:27 +0100137}
138
Jens Axboe925fee32012-11-06 13:50:32 +0100139static int __get_next_rand_offset_zipf(struct thread_data *td,
140 struct fio_file *f, enum fio_ddir ddir,
Jens Axboe1ae83d42013-01-12 01:44:15 -0700141 uint64_t *b)
Jens Axboee25839d2012-11-06 10:49:42 +0100142{
Jens Axboe9c6f6312012-11-07 09:15:45 +0100143 *b = zipf_next(&f->zipf);
Jens Axboee25839d2012-11-06 10:49:42 +0100144 return 0;
145}
146
Jens Axboe925fee32012-11-06 13:50:32 +0100147static int __get_next_rand_offset_pareto(struct thread_data *td,
148 struct fio_file *f, enum fio_ddir ddir,
Jens Axboe1ae83d42013-01-12 01:44:15 -0700149 uint64_t *b)
Jens Axboe925fee32012-11-06 13:50:32 +0100150{
Jens Axboe9c6f6312012-11-07 09:15:45 +0100151 *b = pareto_next(&f->zipf);
Jens Axboe925fee32012-11-06 13:50:32 +0100152 return 0;
153}
154
Jens Axboe1ae83d42013-01-12 01:44:15 -0700155static int flist_cmp(void *data, struct flist_head *a, struct flist_head *b)
156{
157 struct rand_off *r1 = flist_entry(a, struct rand_off, list);
158 struct rand_off *r2 = flist_entry(b, struct rand_off, list);
159
160 return r1->off - r2->off;
161}
162
163static int get_off_from_method(struct thread_data *td, struct fio_file *f,
164 enum fio_ddir ddir, uint64_t *b)
Jens Axboee25839d2012-11-06 10:49:42 +0100165{
166 if (td->o.random_distribution == FIO_RAND_DIST_RANDOM)
167 return __get_next_rand_offset(td, f, ddir, b);
168 else if (td->o.random_distribution == FIO_RAND_DIST_ZIPF)
169 return __get_next_rand_offset_zipf(td, f, ddir, b);
Jens Axboe925fee32012-11-06 13:50:32 +0100170 else if (td->o.random_distribution == FIO_RAND_DIST_PARETO)
171 return __get_next_rand_offset_pareto(td, f, ddir, b);
Jens Axboee25839d2012-11-06 10:49:42 +0100172
173 log_err("fio: unknown random distribution: %d\n", td->o.random_distribution);
174 return 1;
175}
176
Jens Axboebcd5abf2013-01-23 09:27:25 -0700177/*
178 * Sort the reads for a verify phase in batches of verifysort_nr, if
179 * specified.
180 */
181static inline int should_sort_io(struct thread_data *td)
182{
183 if (!td->o.verifysort_nr || !td->o.do_verify)
184 return 0;
185 if (!td_random(td))
186 return 0;
187 if (td->runstate != TD_VERIFYING)
188 return 0;
189 if (td->o.random_generator == FIO_RAND_GEN_TAUSWORTHE)
190 return 0;
191
192 return 1;
193}
194
Jens Axboed9472272013-07-25 10:20:45 -0600195static int should_do_random(struct thread_data *td, enum fio_ddir ddir)
Jens Axboe211c9b82013-04-26 08:56:17 -0600196{
197 unsigned int v;
198 unsigned long r;
199
Jens Axboed9472272013-07-25 10:20:45 -0600200 if (td->o.perc_rand[ddir] == 100)
Jens Axboe211c9b82013-04-26 08:56:17 -0600201 return 1;
202
203 if (td->o.use_os_rand) {
Jens Axboed9472272013-07-25 10:20:45 -0600204 r = os_random_long(&td->seq_rand_state[ddir]);
Jens Axboe211c9b82013-04-26 08:56:17 -0600205 v = 1 + (int) (100.0 * (r / (OS_RAND_MAX + 1.0)));
206 } else {
Jens Axboed9472272013-07-25 10:20:45 -0600207 r = __rand(&td->__seq_rand_state[ddir]);
Jens Axboe211c9b82013-04-26 08:56:17 -0600208 v = 1 + (int) (100.0 * (r / (FRAND_MAX + 1.0)));
209 }
210
Jens Axboed9472272013-07-25 10:20:45 -0600211 return v <= td->o.perc_rand[ddir];
Jens Axboe211c9b82013-04-26 08:56:17 -0600212}
213
Jens Axboe1ae83d42013-01-12 01:44:15 -0700214static int get_next_rand_offset(struct thread_data *td, struct fio_file *f,
215 enum fio_ddir ddir, uint64_t *b)
216{
217 struct rand_off *r;
218 int i, ret = 1;
219
Jens Axboebcd5abf2013-01-23 09:27:25 -0700220 if (!should_sort_io(td))
Jens Axboe1ae83d42013-01-12 01:44:15 -0700221 return get_off_from_method(td, f, ddir, b);
222
223 if (!flist_empty(&td->next_rand_list)) {
224 struct rand_off *r;
225fetch:
Jens Axboe12dbd062014-07-03 21:19:57 -0600226 r = flist_first_entry(&td->next_rand_list, struct rand_off, list);
Jens Axboe1ae83d42013-01-12 01:44:15 -0700227 flist_del(&r->list);
228 *b = r->off;
229 free(r);
230 return 0;
231 }
232
233 for (i = 0; i < td->o.verifysort_nr; i++) {
234 r = malloc(sizeof(*r));
235
236 ret = get_off_from_method(td, f, ddir, &r->off);
237 if (ret) {
238 free(r);
239 break;
240 }
241
242 flist_add(&r->list, &td->next_rand_list);
243 }
244
245 if (ret && !i)
246 return ret;
247
248 assert(!flist_empty(&td->next_rand_list));
249 flist_sort(NULL, &td->next_rand_list, flist_cmp);
250 goto fetch;
251}
252
Jens Axboe38dad622010-07-20 14:46:00 -0600253static int get_next_rand_block(struct thread_data *td, struct fio_file *f,
Jens Axboe1ae83d42013-01-12 01:44:15 -0700254 enum fio_ddir ddir, uint64_t *b)
Jens Axboe38dad622010-07-20 14:46:00 -0600255{
Daniel Ehrenbergc04e4662012-03-16 18:54:15 +0100256 if (!get_next_rand_offset(td, f, ddir, b))
257 return 0;
258
259 if (td->o.time_based) {
Jens Axboe33c48812013-01-21 09:46:06 -0700260 fio_file_reset(td, f);
Daniel Ehrenbergc04e4662012-03-16 18:54:15 +0100261 if (!get_next_rand_offset(td, f, ddir, b))
262 return 0;
Jens Axboe38dad622010-07-20 14:46:00 -0600263 }
264
Daniel Ehrenbergc04e4662012-03-16 18:54:15 +0100265 dprint(FD_IO, "%s: rand offset failed, last=%llu, size=%llu\n",
Jens Axboe4b91ee82013-02-25 10:18:33 +0100266 f->file_name, (unsigned long long) f->last_pos,
267 (unsigned long long) f->real_file_size);
Daniel Ehrenbergc04e4662012-03-16 18:54:15 +0100268 return 1;
Jens Axboe38dad622010-07-20 14:46:00 -0600269}
270
Jens Axboe37cf9e32012-03-17 12:54:30 +0100271static int get_next_seq_offset(struct thread_data *td, struct fio_file *f,
Jens Axboe1ae83d42013-01-12 01:44:15 -0700272 enum fio_ddir ddir, uint64_t *offset)
Jens Axboe38dad622010-07-20 14:46:00 -0600273{
Jens Axboe8a423942014-09-28 16:18:43 -0600274 struct thread_options *o = &td->o;
275
Jens Axboeff58fce2010-08-25 12:02:08 +0200276 assert(ddir_rw(ddir));
277
Jens Axboe8a423942014-09-28 16:18:43 -0600278 if (f->last_pos >= f->io_size + get_start_offset(td, f) &&
279 o->time_based)
Daniel Ehrenbergc04e4662012-03-16 18:54:15 +0100280 f->last_pos = f->last_pos - f->io_size;
281
Jens Axboe38dad622010-07-20 14:46:00 -0600282 if (f->last_pos < f->real_file_size) {
Jens Axboe1ae83d42013-01-12 01:44:15 -0700283 uint64_t pos;
Jens Axboe059b0802011-08-25 09:09:37 +0200284
Jens Axboe8a423942014-09-28 16:18:43 -0600285 if (f->last_pos == f->file_offset && o->ddir_seq_add < 0)
Jens Axboea66da7a2011-08-31 13:14:12 -0600286 f->last_pos = f->real_file_size;
287
288 pos = f->last_pos - f->file_offset;
Jens Axboe8a423942014-09-28 16:18:43 -0600289 if (pos && o->ddir_seq_add) {
290 pos += o->ddir_seq_add;
291
292 /*
293 * If we reach beyond the end of the file
294 * with holed IO, wrap around to the
295 * beginning again.
296 */
297 if (pos >= f->real_file_size)
298 pos = f->file_offset;
299 }
Jens Axboe059b0802011-08-25 09:09:37 +0200300
Jens Axboe37cf9e32012-03-17 12:54:30 +0100301 *offset = pos;
Jens Axboe38dad622010-07-20 14:46:00 -0600302 return 0;
303 }
304
305 return 1;
306}
307
308static int get_next_block(struct thread_data *td, struct io_u *io_u,
Jens Axboe6aca9b32013-07-25 12:45:26 -0600309 enum fio_ddir ddir, int rw_seq,
310 unsigned int *is_random)
Jens Axboe38dad622010-07-20 14:46:00 -0600311{
312 struct fio_file *f = io_u->file;
Jens Axboe1ae83d42013-01-12 01:44:15 -0700313 uint64_t b, offset;
Jens Axboe38dad622010-07-20 14:46:00 -0600314 int ret;
315
Jens Axboeff58fce2010-08-25 12:02:08 +0200316 assert(ddir_rw(ddir));
317
Jens Axboe37cf9e32012-03-17 12:54:30 +0100318 b = offset = -1ULL;
319
Jens Axboe38dad622010-07-20 14:46:00 -0600320 if (rw_seq) {
Jens Axboe211c9b82013-04-26 08:56:17 -0600321 if (td_random(td)) {
Jens Axboe6aca9b32013-07-25 12:45:26 -0600322 if (should_do_random(td, ddir)) {
Jens Axboe211c9b82013-04-26 08:56:17 -0600323 ret = get_next_rand_block(td, f, ddir, &b);
Jens Axboe6aca9b32013-07-25 12:45:26 -0600324 *is_random = 1;
325 } else {
326 *is_random = 0;
Jens Axboe211c9b82013-04-26 08:56:17 -0600327 io_u->flags |= IO_U_F_BUSY_OK;
328 ret = get_next_seq_offset(td, f, ddir, &offset);
329 if (ret)
330 ret = get_next_rand_block(td, f, ddir, &b);
331 }
Jens Axboe6aca9b32013-07-25 12:45:26 -0600332 } else {
333 *is_random = 0;
Jens Axboe37cf9e32012-03-17 12:54:30 +0100334 ret = get_next_seq_offset(td, f, ddir, &offset);
Jens Axboe6aca9b32013-07-25 12:45:26 -0600335 }
Jens Axboe38dad622010-07-20 14:46:00 -0600336 } else {
337 io_u->flags |= IO_U_F_BUSY_OK;
Jens Axboe6aca9b32013-07-25 12:45:26 -0600338 *is_random = 0;
Jens Axboe38dad622010-07-20 14:46:00 -0600339
340 if (td->o.rw_seq == RW_SEQ_SEQ) {
Jens Axboe37cf9e32012-03-17 12:54:30 +0100341 ret = get_next_seq_offset(td, f, ddir, &offset);
Jens Axboe6aca9b32013-07-25 12:45:26 -0600342 if (ret) {
Jens Axboe37cf9e32012-03-17 12:54:30 +0100343 ret = get_next_rand_block(td, f, ddir, &b);
Jens Axboe6aca9b32013-07-25 12:45:26 -0600344 *is_random = 0;
345 }
Jens Axboe38dad622010-07-20 14:46:00 -0600346 } else if (td->o.rw_seq == RW_SEQ_IDENT) {
347 if (f->last_start != -1ULL)
Jens Axboe37cf9e32012-03-17 12:54:30 +0100348 offset = f->last_start - f->file_offset;
Jens Axboe38dad622010-07-20 14:46:00 -0600349 else
Jens Axboe37cf9e32012-03-17 12:54:30 +0100350 offset = 0;
Jens Axboe38dad622010-07-20 14:46:00 -0600351 ret = 0;
352 } else {
353 log_err("fio: unknown rw_seq=%d\n", td->o.rw_seq);
354 ret = 1;
355 }
356 }
Bruce Cran6d68b992013-01-13 17:21:58 +0000357
Jens Axboe37cf9e32012-03-17 12:54:30 +0100358 if (!ret) {
359 if (offset != -1ULL)
360 io_u->offset = offset;
361 else if (b != -1ULL)
362 io_u->offset = b * td->o.ba[ddir];
363 else {
Jens Axboe4e0a8fa2013-04-15 11:40:57 +0200364 log_err("fio: bug in offset generation: offset=%llu, b=%llu\n", (unsigned long long) offset, (unsigned long long) b);
Jens Axboe37cf9e32012-03-17 12:54:30 +0100365 ret = 1;
366 }
367 }
368
Jens Axboe38dad622010-07-20 14:46:00 -0600369 return ret;
370}
371
Jens Axboe10ba5352006-10-20 11:39:27 +0200372/*
373 * For random io, generate a random new block and see if it's used. Repeat
374 * until we find a free one. For sequential io, just return the end of
375 * the last io issued.
376 */
Jens Axboe6aca9b32013-07-25 12:45:26 -0600377static int __get_next_offset(struct thread_data *td, struct io_u *io_u,
378 unsigned int *is_random)
Jens Axboe10ba5352006-10-20 11:39:27 +0200379{
Jens Axboe9bf20612007-03-01 09:33:57 +0100380 struct fio_file *f = io_u->file;
Jens Axboe4ba66132008-02-05 10:05:50 +0100381 enum fio_ddir ddir = io_u->ddir;
Jens Axboe38dad622010-07-20 14:46:00 -0600382 int rw_seq_hit = 0;
Jens Axboe10ba5352006-10-20 11:39:27 +0200383
Jens Axboeff58fce2010-08-25 12:02:08 +0200384 assert(ddir_rw(ddir));
385
Jens Axboe38dad622010-07-20 14:46:00 -0600386 if (td->o.ddir_seq_nr && !--td->ddir_seq_nr) {
387 rw_seq_hit = 1;
Jens Axboe5736c102010-07-20 12:03:25 -0600388 td->ddir_seq_nr = td->o.ddir_seq_nr;
Jens Axboe38dad622010-07-20 14:46:00 -0600389 }
Jens Axboe10ba5352006-10-20 11:39:27 +0200390
Jens Axboe6aca9b32013-07-25 12:45:26 -0600391 if (get_next_block(td, io_u, ddir, rw_seq_hit, is_random))
Jens Axboe38dad622010-07-20 14:46:00 -0600392 return 1;
Jens Axboe10ba5352006-10-20 11:39:27 +0200393
Jens Axboe009bd842008-05-15 10:19:46 +0200394 if (io_u->offset >= f->io_size) {
395 dprint(FD_IO, "get_next_offset: offset %llu >= io_size %llu\n",
Jens Axboe4b91ee82013-02-25 10:18:33 +0100396 (unsigned long long) io_u->offset,
397 (unsigned long long) f->io_size);
Jens Axboe009bd842008-05-15 10:19:46 +0200398 return 1;
399 }
400
401 io_u->offset += f->file_offset;
Jens Axboe2ba1c292008-02-01 13:16:38 +0100402 if (io_u->offset >= f->real_file_size) {
403 dprint(FD_IO, "get_next_offset: offset %llu >= size %llu\n",
Jens Axboe4b91ee82013-02-25 10:18:33 +0100404 (unsigned long long) io_u->offset,
405 (unsigned long long) f->real_file_size);
Jens Axboe10ba5352006-10-20 11:39:27 +0200406 return 1;
Jens Axboe2ba1c292008-02-01 13:16:38 +0100407 }
Jens Axboe10ba5352006-10-20 11:39:27 +0200408
409 return 0;
410}
411
Jens Axboe6aca9b32013-07-25 12:45:26 -0600412static int get_next_offset(struct thread_data *td, struct io_u *io_u,
413 unsigned int *is_random)
Jens Axboe15dc1932010-03-05 10:59:06 +0100414{
Jens Axboed72be542012-11-30 19:37:46 +0100415 if (td->flags & TD_F_PROFILE_OPS) {
416 struct prof_io_ops *ops = &td->prof_io_ops;
Jens Axboe7eb36572010-03-08 13:58:49 +0100417
Jens Axboed72be542012-11-30 19:37:46 +0100418 if (ops->fill_io_u_off)
Jens Axboe6aca9b32013-07-25 12:45:26 -0600419 return ops->fill_io_u_off(td, io_u, is_random);
Jens Axboed72be542012-11-30 19:37:46 +0100420 }
Jens Axboe15dc1932010-03-05 10:59:06 +0100421
Jens Axboe6aca9b32013-07-25 12:45:26 -0600422 return __get_next_offset(td, io_u, is_random);
Jens Axboe15dc1932010-03-05 10:59:06 +0100423}
424
Jens Axboe79944122011-05-24 11:26:16 +0200425static inline int io_u_fits(struct thread_data *td, struct io_u *io_u,
426 unsigned int buflen)
427{
428 struct fio_file *f = io_u->file;
429
Jens Axboebedc9dc2014-03-17 12:51:09 -0600430 return io_u->offset + buflen <= f->io_size + get_start_offset(td, f);
Jens Axboe79944122011-05-24 11:26:16 +0200431}
432
Jens Axboe6aca9b32013-07-25 12:45:26 -0600433static unsigned int __get_next_buflen(struct thread_data *td, struct io_u *io_u,
434 unsigned int is_random)
Jens Axboe10ba5352006-10-20 11:39:27 +0200435{
Jens Axboe6aca9b32013-07-25 12:45:26 -0600436 int ddir = io_u->ddir;
Jens Axboe24d23ca2012-11-13 08:31:24 -0700437 unsigned int buflen = 0;
Jens Axboef3059de2008-06-11 15:37:32 +0200438 unsigned int minbs, maxbs;
Jens Axboe1294c3e2011-05-11 08:15:18 +0200439 unsigned long r, rand_max;
Jens Axboe10ba5352006-10-20 11:39:27 +0200440
Erwan Velu9ee1c642014-04-02 10:51:16 +0200441 assert(ddir_rw(ddir));
Jens Axboe6aca9b32013-07-25 12:45:26 -0600442
443 if (td->o.bs_is_seq_rand)
444 ddir = is_random ? DDIR_WRITE: DDIR_READ;
Jens Axboeff58fce2010-08-25 12:02:08 +0200445
Jens Axboef3059de2008-06-11 15:37:32 +0200446 minbs = td->o.min_bs[ddir];
447 maxbs = td->o.max_bs[ddir];
448
Jens Axboe79944122011-05-24 11:26:16 +0200449 if (minbs == maxbs)
450 return minbs;
451
Jens Axboe52c58022012-02-06 21:58:56 +0100452 /*
453 * If we can't satisfy the min block size from here, then fail
454 */
455 if (!io_u_fits(td, io_u, minbs))
456 return 0;
457
Jens Axboe4c07ad82011-03-28 09:51:09 +0200458 if (td->o.use_os_rand)
459 rand_max = OS_RAND_MAX;
460 else
461 rand_max = FRAND_MAX;
462
Jens Axboe79944122011-05-24 11:26:16 +0200463 do {
Jens Axboe4c07ad82011-03-28 09:51:09 +0200464 if (td->o.use_os_rand)
465 r = os_random_long(&td->bsrange_state);
466 else
467 r = __rand(&td->__bsrange_state);
468
Jens Axboe720e84a2009-04-21 08:29:55 +0200469 if (!td->o.bssplit_nr[ddir]) {
Jens Axboef3059de2008-06-11 15:37:32 +0200470 buflen = 1 + (unsigned int) ((double) maxbs *
Jens Axboe4c07ad82011-03-28 09:51:09 +0200471 (r / (rand_max + 1.0)));
Jens Axboef3059de2008-06-11 15:37:32 +0200472 if (buflen < minbs)
473 buflen = minbs;
Jens Axboe5ec10ea2008-03-06 15:42:00 +0100474 } else {
Jens Axboe564ca972007-12-14 12:21:19 +0100475 long perc = 0;
476 unsigned int i;
477
Jens Axboe720e84a2009-04-21 08:29:55 +0200478 for (i = 0; i < td->o.bssplit_nr[ddir]; i++) {
479 struct bssplit *bsp = &td->o.bssplit[ddir][i];
Jens Axboe564ca972007-12-14 12:21:19 +0100480
481 buflen = bsp->bs;
482 perc += bsp->perc;
Jens Axboe79944122011-05-24 11:26:16 +0200483 if ((r <= ((rand_max / 100L) * perc)) &&
484 io_u_fits(td, io_u, buflen))
Jens Axboe564ca972007-12-14 12:21:19 +0100485 break;
486 }
487 }
Jens Axboe79944122011-05-24 11:26:16 +0200488
Josef Bacika9f70b12013-07-08 20:32:50 -0400489 if (td->o.do_verify && td->o.verify != VERIFY_NONE)
490 buflen = (buflen + td->o.verify_interval - 1) &
491 ~(td->o.verify_interval - 1);
492
Jens Axboef3059de2008-06-11 15:37:32 +0200493 if (!td->o.bs_unaligned && is_power_of_2(minbs))
494 buflen = (buflen + minbs - 1) & ~(minbs - 1);
Jens Axboe10ba5352006-10-20 11:39:27 +0200495
Jens Axboe79944122011-05-24 11:26:16 +0200496 } while (!io_u_fits(td, io_u, buflen));
Jens Axboe6a5e6882007-07-26 10:47:51 +0200497
Jens Axboe10ba5352006-10-20 11:39:27 +0200498 return buflen;
499}
500
Jens Axboe6aca9b32013-07-25 12:45:26 -0600501static unsigned int get_next_buflen(struct thread_data *td, struct io_u *io_u,
502 unsigned int is_random)
Jens Axboe15dc1932010-03-05 10:59:06 +0100503{
Jens Axboed72be542012-11-30 19:37:46 +0100504 if (td->flags & TD_F_PROFILE_OPS) {
505 struct prof_io_ops *ops = &td->prof_io_ops;
Jens Axboe7eb36572010-03-08 13:58:49 +0100506
Jens Axboed72be542012-11-30 19:37:46 +0100507 if (ops->fill_io_u_size)
Jens Axboe6aca9b32013-07-25 12:45:26 -0600508 return ops->fill_io_u_size(td, io_u, is_random);
Jens Axboed72be542012-11-30 19:37:46 +0100509 }
Jens Axboe15dc1932010-03-05 10:59:06 +0100510
Jens Axboe6aca9b32013-07-25 12:45:26 -0600511 return __get_next_buflen(td, io_u, is_random);
Jens Axboe15dc1932010-03-05 10:59:06 +0100512}
513
Jens Axboeafe24a52007-03-16 20:27:27 +0100514static void set_rwmix_bytes(struct thread_data *td)
515{
Jens Axboeafe24a52007-03-16 20:27:27 +0100516 unsigned int diff;
517
518 /*
519 * we do time or byte based switch. this is needed because
520 * buffered writes may issue a lot quicker than they complete,
521 * whereas reads do not.
522 */
Jens Axboee47f7992007-03-21 14:05:39 +0100523 diff = td->o.rwmix[td->rwmix_ddir ^ 1];
Jens Axboe04c540d2008-05-28 10:35:26 +0200524 td->rwmix_issues = (td->io_issues[td->rwmix_ddir] * diff) / 100;
Jens Axboee47f7992007-03-21 14:05:39 +0100525}
526
527static inline enum fio_ddir get_rand_ddir(struct thread_data *td)
528{
529 unsigned int v;
Jens Axboe1294c3e2011-05-11 08:15:18 +0200530 unsigned long r;
Jens Axboee47f7992007-03-21 14:05:39 +0100531
Jens Axboe4c07ad82011-03-28 09:51:09 +0200532 if (td->o.use_os_rand) {
533 r = os_random_long(&td->rwmix_state);
534 v = 1 + (int) (100.0 * (r / (OS_RAND_MAX + 1.0)));
535 } else {
536 r = __rand(&td->__rwmix_state);
537 v = 1 + (int) (100.0 * (r / (FRAND_MAX + 1.0)));
538 }
539
Jens Axboe04c540d2008-05-28 10:35:26 +0200540 if (v <= td->o.rwmix[DDIR_READ])
Jens Axboee47f7992007-03-21 14:05:39 +0100541 return DDIR_READ;
542
543 return DDIR_WRITE;
Jens Axboeafe24a52007-03-16 20:27:27 +0100544}
545
Jens Axboe002e7182013-05-17 12:39:53 +0200546void io_u_quiesce(struct thread_data *td)
547{
548 /*
549 * We are going to sleep, ensure that we flush anything pending as
550 * not to skew our latency numbers.
551 *
552 * Changed to only monitor 'in flight' requests here instead of the
553 * td->cur_depth, b/c td->cur_depth does not accurately represent
554 * io's that have been actually submitted to an async engine,
555 * and cur_depth is meaningless for sync engines.
556 */
557 while (td->io_u_in_flight) {
558 int fio_unused ret;
559
560 ret = io_u_queued_complete(td, 1, NULL);
561 }
562}
563
Jens Axboe581e7142009-06-09 12:47:16 +0200564static enum fio_ddir rate_ddir(struct thread_data *td, enum fio_ddir ddir)
565{
566 enum fio_ddir odir = ddir ^ 1;
567 struct timeval t;
568 long usec;
569
Jens Axboeff58fce2010-08-25 12:02:08 +0200570 assert(ddir_rw(ddir));
571
Jens Axboe315fcfe2013-02-08 19:05:25 +0100572 if (td->rate_pending_usleep[ddir] <= 0)
Jens Axboe581e7142009-06-09 12:47:16 +0200573 return ddir;
574
575 /*
576 * We have too much pending sleep in this direction. See if we
577 * should switch.
578 */
Jens Axboe315fcfe2013-02-08 19:05:25 +0100579 if (td_rw(td) && td->o.rwmix[odir]) {
Jens Axboe581e7142009-06-09 12:47:16 +0200580 /*
581 * Other direction does not have too much pending, switch
582 */
583 if (td->rate_pending_usleep[odir] < 100000)
584 return odir;
585
586 /*
587 * Both directions have pending sleep. Sleep the minimum time
588 * and deduct from both.
589 */
590 if (td->rate_pending_usleep[ddir] <=
591 td->rate_pending_usleep[odir]) {
592 usec = td->rate_pending_usleep[ddir];
593 } else {
594 usec = td->rate_pending_usleep[odir];
595 ddir = odir;
596 }
597 } else
598 usec = td->rate_pending_usleep[ddir];
599
Jens Axboe002e7182013-05-17 12:39:53 +0200600 io_u_quiesce(td);
Jens Axboe78c1eda2011-08-30 15:34:14 -0600601
Jens Axboe581e7142009-06-09 12:47:16 +0200602 fio_gettime(&t, NULL);
603 usec_sleep(td, usec);
604 usec = utime_since_now(&t);
605
606 td->rate_pending_usleep[ddir] -= usec;
607
608 odir = ddir ^ 1;
609 if (td_rw(td) && __should_check_rate(td, odir))
610 td->rate_pending_usleep[odir] -= usec;
Jens Axboe0b9d69e2009-09-11 22:29:54 +0200611
Shaohua Li6eaf09d2012-09-14 08:49:43 +0200612 if (ddir_trim(ddir))
613 return ddir;
Jens Axboee0224c62013-02-07 19:55:24 +0100614
Jens Axboe581e7142009-06-09 12:47:16 +0200615 return ddir;
616}
617
Jens Axboe10ba5352006-10-20 11:39:27 +0200618/*
619 * Return the data direction for the next io_u. If the job is a
620 * mixed read/write workload, check the rwmix cycle and switch if
621 * necessary.
622 */
Jens Axboe1e97cce2006-12-05 11:44:16 +0100623static enum fio_ddir get_rw_ddir(struct thread_data *td)
Jens Axboe10ba5352006-10-20 11:39:27 +0200624{
Jens Axboe581e7142009-06-09 12:47:16 +0200625 enum fio_ddir ddir;
626
Jens Axboe5f9099e2009-06-16 22:40:26 +0200627 /*
628 * see if it's time to fsync
629 */
630 if (td->o.fsync_blocks &&
631 !(td->io_issues[DDIR_WRITE] % td->o.fsync_blocks) &&
632 td->io_issues[DDIR_WRITE] && should_fsync(td))
633 return DDIR_SYNC;
634
635 /*
636 * see if it's time to fdatasync
637 */
638 if (td->o.fdatasync_blocks &&
639 !(td->io_issues[DDIR_WRITE] % td->o.fdatasync_blocks) &&
640 td->io_issues[DDIR_WRITE] && should_fsync(td))
641 return DDIR_DATASYNC;
642
Jens Axboe44f29692010-03-09 20:09:44 +0100643 /*
644 * see if it's time to sync_file_range
645 */
646 if (td->sync_file_range_nr &&
647 !(td->io_issues[DDIR_WRITE] % td->sync_file_range_nr) &&
648 td->io_issues[DDIR_WRITE] && should_fsync(td))
649 return DDIR_SYNC_FILE_RANGE;
650
Jens Axboe10ba5352006-10-20 11:39:27 +0200651 if (td_rw(td)) {
Jens Axboe10ba5352006-10-20 11:39:27 +0200652 /*
653 * Check if it's time to seed a new data direction.
654 */
Jens Axboee4928662008-04-07 09:19:46 +0200655 if (td->io_issues[td->rwmix_ddir] >= td->rwmix_issues) {
Jens Axboee47f7992007-03-21 14:05:39 +0100656 /*
657 * Put a top limit on how many bytes we do for
658 * one data direction, to avoid overflowing the
659 * ranges too much
660 */
661 ddir = get_rand_ddir(td);
Jens Axboee47f7992007-03-21 14:05:39 +0100662
663 if (ddir != td->rwmix_ddir)
664 set_rwmix_bytes(td);
665
666 td->rwmix_ddir = ddir;
Jens Axboe10ba5352006-10-20 11:39:27 +0200667 }
Jens Axboe581e7142009-06-09 12:47:16 +0200668 ddir = td->rwmix_ddir;
Jens Axboe10ba5352006-10-20 11:39:27 +0200669 } else if (td_read(td))
Jens Axboe581e7142009-06-09 12:47:16 +0200670 ddir = DDIR_READ;
Shaohua Li6eaf09d2012-09-14 08:49:43 +0200671 else if (td_write(td))
Jens Axboe581e7142009-06-09 12:47:16 +0200672 ddir = DDIR_WRITE;
Shaohua Li6eaf09d2012-09-14 08:49:43 +0200673 else
674 ddir = DDIR_TRIM;
Jens Axboe581e7142009-06-09 12:47:16 +0200675
676 td->rwmix_ddir = rate_ddir(td, ddir);
677 return td->rwmix_ddir;
Jens Axboe10ba5352006-10-20 11:39:27 +0200678}
679
Jens Axboe1ef2b6b2010-10-08 15:07:01 +0200680static void set_rw_ddir(struct thread_data *td, struct io_u *io_u)
681{
Jens Axboebcd5abf2013-01-23 09:27:25 -0700682 io_u->ddir = io_u->acct_ddir = get_rw_ddir(td);
Jens Axboe1ef2b6b2010-10-08 15:07:01 +0200683
684 if (io_u->ddir == DDIR_WRITE && (td->io_ops->flags & FIO_BARRIER) &&
685 td->o.barrier_blocks &&
686 !(td->io_issues[DDIR_WRITE] % td->o.barrier_blocks) &&
687 td->io_issues[DDIR_WRITE])
688 io_u->flags |= IO_U_F_BARRIER;
689}
690
Jens Axboee8462bd2009-07-06 12:59:04 +0200691void put_file_log(struct thread_data *td, struct fio_file *f)
Jens Axboe60f2c652008-05-16 12:31:36 +0200692{
Jens Axboe71b84ca2014-04-14 12:01:45 -0600693 unsigned int ret = put_file(td, f);
Jens Axboe60f2c652008-05-16 12:31:36 +0200694
695 if (ret)
696 td_verror(td, ret, "file close");
697}
698
Jens Axboe10ba5352006-10-20 11:39:27 +0200699void put_io_u(struct thread_data *td, struct io_u *io_u)
700{
Jens Axboee8462bd2009-07-06 12:59:04 +0200701 td_io_u_lock(td);
702
Jens Axboee69fdf72014-07-23 16:11:43 +0200703 if (io_u->file && !(io_u->flags & IO_U_F_NO_FILE_PUT))
Jens Axboe60f2c652008-05-16 12:31:36 +0200704 put_file_log(td, io_u->file);
Jens Axboee69fdf72014-07-23 16:11:43 +0200705
Jens Axboe10ba5352006-10-20 11:39:27 +0200706 io_u->file = NULL;
Steven Langd7ee2a72011-10-26 09:46:50 +0200707 io_u->flags |= IO_U_F_FREE;
708
Radha Ramachandran0c412142009-11-03 21:45:31 +0100709 if (io_u->flags & IO_U_F_IN_CUR_DEPTH)
710 td->cur_depth--;
Jens Axboe2ae0b202013-05-28 14:16:55 +0200711 io_u_qpush(&td->io_u_freelist, io_u);
Jens Axboee8462bd2009-07-06 12:59:04 +0200712 td_io_u_unlock(td);
713 td_io_u_free_notify(td);
Jens Axboe10ba5352006-10-20 11:39:27 +0200714}
715
Radha Ramachandranf2bba182009-06-15 08:40:16 +0200716void clear_io_u(struct thread_data *td, struct io_u *io_u)
717{
718 io_u->flags &= ~IO_U_F_FLIGHT;
719 put_io_u(td, io_u);
720}
721
Jens Axboe755200a2007-02-19 13:08:12 +0100722void requeue_io_u(struct thread_data *td, struct io_u **io_u)
723{
724 struct io_u *__io_u = *io_u;
Jens Axboebcd5abf2013-01-23 09:27:25 -0700725 enum fio_ddir ddir = acct_ddir(__io_u);
Jens Axboe755200a2007-02-19 13:08:12 +0100726
Jens Axboe465221b2008-05-30 22:07:49 +0200727 dprint(FD_IO, "requeue %p\n", __io_u);
728
Jens Axboee8462bd2009-07-06 12:59:04 +0200729 td_io_u_lock(td);
730
Jens Axboe4d2e0f42007-02-24 13:31:57 +0100731 __io_u->flags |= IO_U_F_FREE;
Jens Axboebcd5abf2013-01-23 09:27:25 -0700732 if ((__io_u->flags & IO_U_F_FLIGHT) && ddir_rw(ddir))
733 td->io_issues[ddir]--;
Jens Axboe5ec10ea2008-03-06 15:42:00 +0100734
Jens Axboe4d2e0f42007-02-24 13:31:57 +0100735 __io_u->flags &= ~IO_U_F_FLIGHT;
Radha Ramachandran0c412142009-11-03 21:45:31 +0100736 if (__io_u->flags & IO_U_F_IN_CUR_DEPTH)
737 td->cur_depth--;
Jens Axboe2ae0b202013-05-28 14:16:55 +0200738
739 io_u_rpush(&td->io_u_requeues, __io_u);
Jens Axboee8462bd2009-07-06 12:59:04 +0200740 td_io_u_unlock(td);
Jens Axboe755200a2007-02-19 13:08:12 +0100741 *io_u = NULL;
742}
743
Jens Axboe9bf20612007-03-01 09:33:57 +0100744static int fill_io_u(struct thread_data *td, struct io_u *io_u)
Jens Axboe10ba5352006-10-20 11:39:27 +0200745{
Jens Axboe6aca9b32013-07-25 12:45:26 -0600746 unsigned int is_random;
747
Jens Axboeb4c5e1a2007-10-25 18:44:45 +0200748 if (td->io_ops->flags & FIO_NOIO)
749 goto out;
750
Jens Axboe1ef2b6b2010-10-08 15:07:01 +0200751 set_rw_ddir(td, io_u);
Jens Axboea00735e2006-11-03 08:58:08 +0100752
Jens Axboe87dc1ab2006-10-24 14:41:26 +0200753 /*
Jens Axboeff58fce2010-08-25 12:02:08 +0200754 * fsync() or fdatasync() or trim etc, we are done
Jens Axboe5f9099e2009-06-16 22:40:26 +0200755 */
Jens Axboeff58fce2010-08-25 12:02:08 +0200756 if (!ddir_rw(io_u->ddir))
Jens Axboe5f9099e2009-06-16 22:40:26 +0200757 goto out;
758
759 /*
Jens Axboe48f5abd2007-07-20 13:25:04 +0200760 * See if it's time to switch to a new zone
761 */
Jens Axboe13af05a2012-02-11 09:04:02 +0100762 if (td->zone_bytes >= td->o.zone_size && td->o.zone_skip) {
Jens Axboe418bf542014-09-28 16:20:58 -0600763 struct fio_file *f = io_u->file;
764
Jens Axboe48f5abd2007-07-20 13:25:04 +0200765 td->zone_bytes = 0;
Jens Axboe418bf542014-09-28 16:20:58 -0600766 f->file_offset += td->o.zone_range + td->o.zone_skip;
767
768 /*
769 * Wrap from the beginning, if we exceed the file size
770 */
771 if (f->file_offset >= f->real_file_size)
772 f->file_offset = f->real_file_size - f->file_offset;
773 f->last_pos = f->file_offset;
Jens Axboe48f5abd2007-07-20 13:25:04 +0200774 td->io_skip_bytes += td->o.zone_skip;
775 }
776
777 /*
Jens Axboec685b5b2007-02-10 20:02:28 +0100778 * No log, let the seq/rand engine retrieve the next buflen and
779 * position.
Jens Axboe10ba5352006-10-20 11:39:27 +0200780 */
Jens Axboe6aca9b32013-07-25 12:45:26 -0600781 if (get_next_offset(td, io_u, &is_random)) {
Jens Axboe2ba1c292008-02-01 13:16:38 +0100782 dprint(FD_IO, "io_u %p, failed getting offset\n", io_u);
Jens Axboebca4ed42007-02-12 05:13:23 +0100783 return 1;
Jens Axboe2ba1c292008-02-01 13:16:38 +0100784 }
Jens Axboec685b5b2007-02-10 20:02:28 +0100785
Jens Axboe6aca9b32013-07-25 12:45:26 -0600786 io_u->buflen = get_next_buflen(td, io_u, is_random);
Jens Axboe2ba1c292008-02-01 13:16:38 +0100787 if (!io_u->buflen) {
788 dprint(FD_IO, "io_u %p, failed getting buflen\n", io_u);
Jens Axboebca4ed42007-02-12 05:13:23 +0100789 return 1;
Jens Axboe2ba1c292008-02-01 13:16:38 +0100790 }
Jens Axboe10ba5352006-10-20 11:39:27 +0200791
Jens Axboe2ba1c292008-02-01 13:16:38 +0100792 if (io_u->offset + io_u->buflen > io_u->file->real_file_size) {
793 dprint(FD_IO, "io_u %p, offset too large\n", io_u);
Jens Axboe4b91ee82013-02-25 10:18:33 +0100794 dprint(FD_IO, " off=%llu/%lu > %llu\n",
795 (unsigned long long) io_u->offset, io_u->buflen,
796 (unsigned long long) io_u->file->real_file_size);
Jens Axboe6a5e6882007-07-26 10:47:51 +0200797 return 1;
Jens Axboe2ba1c292008-02-01 13:16:38 +0100798 }
Jens Axboe6a5e6882007-07-26 10:47:51 +0200799
Jens Axboebca4ed42007-02-12 05:13:23 +0100800 /*
801 * mark entry before potentially trimming io_u
802 */
Jens Axboe303032a2008-03-26 10:11:10 +0100803 if (td_random(td) && file_randommap(td, io_u->file))
Jens Axboe9bf20612007-03-01 09:33:57 +0100804 mark_random_map(td, io_u);
Jens Axboe10ba5352006-10-20 11:39:27 +0200805
Jens Axboec38e9462007-03-27 08:48:48 +0200806out:
Jens Axboe2ba1c292008-02-01 13:16:38 +0100807 dprint_io_u(io_u, "fill_io_u");
Jens Axboed9d91e32008-01-31 13:25:42 +0100808 td->zone_bytes += io_u->buflen;
Jens Axboebca4ed42007-02-12 05:13:23 +0100809 return 0;
Jens Axboe10ba5352006-10-20 11:39:27 +0200810}
811
Jens Axboe838bc702008-05-22 13:08:23 +0200812static void __io_u_mark_map(unsigned int *map, unsigned int nr)
813{
Jens Axboe2b13e712011-01-19 14:04:16 -0700814 int idx = 0;
Jens Axboe838bc702008-05-22 13:08:23 +0200815
816 switch (nr) {
817 default:
Jens Axboe2b13e712011-01-19 14:04:16 -0700818 idx = 6;
Jens Axboe838bc702008-05-22 13:08:23 +0200819 break;
820 case 33 ... 64:
Jens Axboe2b13e712011-01-19 14:04:16 -0700821 idx = 5;
Jens Axboe838bc702008-05-22 13:08:23 +0200822 break;
823 case 17 ... 32:
Jens Axboe2b13e712011-01-19 14:04:16 -0700824 idx = 4;
Jens Axboe838bc702008-05-22 13:08:23 +0200825 break;
826 case 9 ... 16:
Jens Axboe2b13e712011-01-19 14:04:16 -0700827 idx = 3;
Jens Axboe838bc702008-05-22 13:08:23 +0200828 break;
829 case 5 ... 8:
Jens Axboe2b13e712011-01-19 14:04:16 -0700830 idx = 2;
Jens Axboe838bc702008-05-22 13:08:23 +0200831 break;
832 case 1 ... 4:
Jens Axboe2b13e712011-01-19 14:04:16 -0700833 idx = 1;
Jens Axboe838bc702008-05-22 13:08:23 +0200834 case 0:
835 break;
836 }
837
Jens Axboe2b13e712011-01-19 14:04:16 -0700838 map[idx]++;
Jens Axboe838bc702008-05-22 13:08:23 +0200839}
840
841void io_u_mark_submit(struct thread_data *td, unsigned int nr)
842{
843 __io_u_mark_map(td->ts.io_u_submit, nr);
844 td->ts.total_submit++;
845}
846
847void io_u_mark_complete(struct thread_data *td, unsigned int nr)
848{
849 __io_u_mark_map(td->ts.io_u_complete, nr);
850 td->ts.total_complete++;
851}
852
Jens Axboed8005752008-05-15 09:49:09 +0200853void io_u_mark_depth(struct thread_data *td, unsigned int nr)
Jens Axboe71619dc2007-01-13 23:56:33 +0100854{
Jens Axboe2b13e712011-01-19 14:04:16 -0700855 int idx = 0;
Jens Axboe71619dc2007-01-13 23:56:33 +0100856
857 switch (td->cur_depth) {
858 default:
Jens Axboe2b13e712011-01-19 14:04:16 -0700859 idx = 6;
Jens Axboea783e612007-06-19 09:50:28 +0200860 break;
Jens Axboe71619dc2007-01-13 23:56:33 +0100861 case 32 ... 63:
Jens Axboe2b13e712011-01-19 14:04:16 -0700862 idx = 5;
Jens Axboea783e612007-06-19 09:50:28 +0200863 break;
Jens Axboe71619dc2007-01-13 23:56:33 +0100864 case 16 ... 31:
Jens Axboe2b13e712011-01-19 14:04:16 -0700865 idx = 4;
Jens Axboea783e612007-06-19 09:50:28 +0200866 break;
Jens Axboe71619dc2007-01-13 23:56:33 +0100867 case 8 ... 15:
Jens Axboe2b13e712011-01-19 14:04:16 -0700868 idx = 3;
Jens Axboea783e612007-06-19 09:50:28 +0200869 break;
Jens Axboe71619dc2007-01-13 23:56:33 +0100870 case 4 ... 7:
Jens Axboe2b13e712011-01-19 14:04:16 -0700871 idx = 2;
Jens Axboea783e612007-06-19 09:50:28 +0200872 break;
Jens Axboe71619dc2007-01-13 23:56:33 +0100873 case 2 ... 3:
Jens Axboe2b13e712011-01-19 14:04:16 -0700874 idx = 1;
Jens Axboe71619dc2007-01-13 23:56:33 +0100875 case 1:
876 break;
877 }
878
Jens Axboe2b13e712011-01-19 14:04:16 -0700879 td->ts.io_u_map[idx] += nr;
Jens Axboe71619dc2007-01-13 23:56:33 +0100880}
881
Jens Axboe04a0fea2007-06-19 12:48:41 +0200882static void io_u_mark_lat_usec(struct thread_data *td, unsigned long usec)
883{
Jens Axboe2b13e712011-01-19 14:04:16 -0700884 int idx = 0;
Jens Axboe04a0fea2007-06-19 12:48:41 +0200885
886 assert(usec < 1000);
887
888 switch (usec) {
889 case 750 ... 999:
Jens Axboe2b13e712011-01-19 14:04:16 -0700890 idx = 9;
Jens Axboe04a0fea2007-06-19 12:48:41 +0200891 break;
892 case 500 ... 749:
Jens Axboe2b13e712011-01-19 14:04:16 -0700893 idx = 8;
Jens Axboe04a0fea2007-06-19 12:48:41 +0200894 break;
895 case 250 ... 499:
Jens Axboe2b13e712011-01-19 14:04:16 -0700896 idx = 7;
Jens Axboe04a0fea2007-06-19 12:48:41 +0200897 break;
898 case 100 ... 249:
Jens Axboe2b13e712011-01-19 14:04:16 -0700899 idx = 6;
Jens Axboe04a0fea2007-06-19 12:48:41 +0200900 break;
901 case 50 ... 99:
Jens Axboe2b13e712011-01-19 14:04:16 -0700902 idx = 5;
Jens Axboe04a0fea2007-06-19 12:48:41 +0200903 break;
904 case 20 ... 49:
Jens Axboe2b13e712011-01-19 14:04:16 -0700905 idx = 4;
Jens Axboe04a0fea2007-06-19 12:48:41 +0200906 break;
907 case 10 ... 19:
Jens Axboe2b13e712011-01-19 14:04:16 -0700908 idx = 3;
Jens Axboe04a0fea2007-06-19 12:48:41 +0200909 break;
910 case 4 ... 9:
Jens Axboe2b13e712011-01-19 14:04:16 -0700911 idx = 2;
Jens Axboe04a0fea2007-06-19 12:48:41 +0200912 break;
913 case 2 ... 3:
Jens Axboe2b13e712011-01-19 14:04:16 -0700914 idx = 1;
Jens Axboe04a0fea2007-06-19 12:48:41 +0200915 case 0 ... 1:
916 break;
917 }
918
Jens Axboe2b13e712011-01-19 14:04:16 -0700919 assert(idx < FIO_IO_U_LAT_U_NR);
920 td->ts.io_u_lat_u[idx]++;
Jens Axboe04a0fea2007-06-19 12:48:41 +0200921}
922
923static void io_u_mark_lat_msec(struct thread_data *td, unsigned long msec)
Jens Axboeec118302007-02-17 04:38:20 +0100924{
Jens Axboe2b13e712011-01-19 14:04:16 -0700925 int idx = 0;
Jens Axboeec118302007-02-17 04:38:20 +0100926
927 switch (msec) {
928 default:
Jens Axboe2b13e712011-01-19 14:04:16 -0700929 idx = 11;
Jens Axboe04a0fea2007-06-19 12:48:41 +0200930 break;
Jens Axboe8abdce62007-02-21 10:22:55 +0100931 case 1000 ... 1999:
Jens Axboe2b13e712011-01-19 14:04:16 -0700932 idx = 10;
Jens Axboe04a0fea2007-06-19 12:48:41 +0200933 break;
Jens Axboe8abdce62007-02-21 10:22:55 +0100934 case 750 ... 999:
Jens Axboe2b13e712011-01-19 14:04:16 -0700935 idx = 9;
Jens Axboe04a0fea2007-06-19 12:48:41 +0200936 break;
Jens Axboe8abdce62007-02-21 10:22:55 +0100937 case 500 ... 749:
Jens Axboe2b13e712011-01-19 14:04:16 -0700938 idx = 8;
Jens Axboe04a0fea2007-06-19 12:48:41 +0200939 break;
Jens Axboe8abdce62007-02-21 10:22:55 +0100940 case 250 ... 499:
Jens Axboe2b13e712011-01-19 14:04:16 -0700941 idx = 7;
Jens Axboe04a0fea2007-06-19 12:48:41 +0200942 break;
Jens Axboe8abdce62007-02-21 10:22:55 +0100943 case 100 ... 249:
Jens Axboe2b13e712011-01-19 14:04:16 -0700944 idx = 6;
Jens Axboe04a0fea2007-06-19 12:48:41 +0200945 break;
Jens Axboe8abdce62007-02-21 10:22:55 +0100946 case 50 ... 99:
Jens Axboe2b13e712011-01-19 14:04:16 -0700947 idx = 5;
Jens Axboe04a0fea2007-06-19 12:48:41 +0200948 break;
Jens Axboe8abdce62007-02-21 10:22:55 +0100949 case 20 ... 49:
Jens Axboe2b13e712011-01-19 14:04:16 -0700950 idx = 4;
Jens Axboe04a0fea2007-06-19 12:48:41 +0200951 break;
Jens Axboe8abdce62007-02-21 10:22:55 +0100952 case 10 ... 19:
Jens Axboe2b13e712011-01-19 14:04:16 -0700953 idx = 3;
Jens Axboe04a0fea2007-06-19 12:48:41 +0200954 break;
Jens Axboe8abdce62007-02-21 10:22:55 +0100955 case 4 ... 9:
Jens Axboe2b13e712011-01-19 14:04:16 -0700956 idx = 2;
Jens Axboe04a0fea2007-06-19 12:48:41 +0200957 break;
Jens Axboeec118302007-02-17 04:38:20 +0100958 case 2 ... 3:
Jens Axboe2b13e712011-01-19 14:04:16 -0700959 idx = 1;
Jens Axboeec118302007-02-17 04:38:20 +0100960 case 0 ... 1:
961 break;
962 }
963
Jens Axboe2b13e712011-01-19 14:04:16 -0700964 assert(idx < FIO_IO_U_LAT_M_NR);
965 td->ts.io_u_lat_m[idx]++;
Jens Axboe04a0fea2007-06-19 12:48:41 +0200966}
967
968static void io_u_mark_latency(struct thread_data *td, unsigned long usec)
969{
970 if (usec < 1000)
971 io_u_mark_lat_usec(td, usec);
972 else
973 io_u_mark_lat_msec(td, usec / 1000);
Jens Axboeec118302007-02-17 04:38:20 +0100974}
975
Jens Axboe0aabe162007-02-23 08:45:55 +0100976/*
977 * Get next file to service by choosing one at random
978 */
Jens Axboe2cc52932009-06-09 14:14:20 +0200979static struct fio_file *get_next_file_rand(struct thread_data *td,
980 enum fio_file_flags goodf,
Jens Axboed6aed792009-06-03 08:41:15 +0200981 enum fio_file_flags badf)
Jens Axboe0aabe162007-02-23 08:45:55 +0100982{
Jens Axboe0aabe162007-02-23 08:45:55 +0100983 struct fio_file *f;
Jens Axboe1c178182007-03-13 13:25:18 +0100984 int fno;
Jens Axboe0aabe162007-02-23 08:45:55 +0100985
986 do {
Jens Axboe87b10672009-03-04 09:39:47 +0100987 int opened = 0;
Jens Axboe1294c3e2011-05-11 08:15:18 +0200988 unsigned long r;
Jens Axboe7c83c082007-03-01 10:04:15 +0100989
Jens Axboe4c07ad82011-03-28 09:51:09 +0200990 if (td->o.use_os_rand) {
991 r = os_random_long(&td->next_file_state);
992 fno = (unsigned int) ((double) td->o.nr_files
993 * (r / (OS_RAND_MAX + 1.0)));
994 } else {
995 r = __rand(&td->__next_file_state);
996 fno = (unsigned int) ((double) td->o.nr_files
997 * (r / (FRAND_MAX + 1.0)));
998 }
999
Jens Axboe126d65c2008-03-01 18:04:31 +01001000 f = td->files[fno];
Jens Axboed6aed792009-06-03 08:41:15 +02001001 if (fio_file_done(f))
Jens Axboe059e63c2007-03-27 20:34:47 +02001002 continue;
Jens Axboe1c178182007-03-13 13:25:18 +01001003
Jens Axboed6aed792009-06-03 08:41:15 +02001004 if (!fio_file_open(f)) {
Jens Axboe87b10672009-03-04 09:39:47 +01001005 int err;
1006
Jens Axboe002fe732014-02-11 08:31:13 -07001007 if (td->nr_open_files >= td->o.open_files)
1008 return ERR_PTR(-EBUSY);
1009
Jens Axboe87b10672009-03-04 09:39:47 +01001010 err = td_io_open_file(td, f);
1011 if (err)
1012 continue;
1013 opened = 1;
1014 }
1015
Jens Axboe2ba1c292008-02-01 13:16:38 +01001016 if ((!goodf || (f->flags & goodf)) && !(f->flags & badf)) {
1017 dprint(FD_FILE, "get_next_file_rand: %p\n", f);
Jens Axboe0aabe162007-02-23 08:45:55 +01001018 return f;
Jens Axboe2ba1c292008-02-01 13:16:38 +01001019 }
Jens Axboe87b10672009-03-04 09:39:47 +01001020 if (opened)
1021 td_io_close_file(td, f);
Jens Axboe0aabe162007-02-23 08:45:55 +01001022 } while (1);
1023}
1024
1025/*
1026 * Get next file to service by doing round robin between all available ones
1027 */
Jens Axboe1c178182007-03-13 13:25:18 +01001028static struct fio_file *get_next_file_rr(struct thread_data *td, int goodf,
1029 int badf)
Jens Axboe3d7c3912007-02-19 13:16:12 +01001030{
1031 unsigned int old_next_file = td->next_file;
1032 struct fio_file *f;
1033
1034 do {
Jens Axboe87b10672009-03-04 09:39:47 +01001035 int opened = 0;
1036
Jens Axboe126d65c2008-03-01 18:04:31 +01001037 f = td->files[td->next_file];
Jens Axboe3d7c3912007-02-19 13:16:12 +01001038
1039 td->next_file++;
Jens Axboe2dc1bbe2007-03-15 15:01:33 +01001040 if (td->next_file >= td->o.nr_files)
Jens Axboe3d7c3912007-02-19 13:16:12 +01001041 td->next_file = 0;
1042
Jens Axboe87b10672009-03-04 09:39:47 +01001043 dprint(FD_FILE, "trying file %s %x\n", f->file_name, f->flags);
Jens Axboed6aed792009-06-03 08:41:15 +02001044 if (fio_file_done(f)) {
Jens Axboed5ed68e2007-03-28 09:33:43 +02001045 f = NULL;
Jens Axboe059e63c2007-03-27 20:34:47 +02001046 continue;
Jens Axboed5ed68e2007-03-28 09:33:43 +02001047 }
Jens Axboe059e63c2007-03-27 20:34:47 +02001048
Jens Axboed6aed792009-06-03 08:41:15 +02001049 if (!fio_file_open(f)) {
Jens Axboe87b10672009-03-04 09:39:47 +01001050 int err;
1051
Jens Axboe002fe732014-02-11 08:31:13 -07001052 if (td->nr_open_files >= td->o.open_files)
1053 return ERR_PTR(-EBUSY);
1054
Jens Axboe87b10672009-03-04 09:39:47 +01001055 err = td_io_open_file(td, f);
Jens Axboeb5696bf2009-03-04 16:03:49 +01001056 if (err) {
1057 dprint(FD_FILE, "error %d on open of %s\n",
1058 err, f->file_name);
Jens Axboe87c27b42009-05-20 10:45:12 +02001059 f = NULL;
Jens Axboe87b10672009-03-04 09:39:47 +01001060 continue;
Jens Axboeb5696bf2009-03-04 16:03:49 +01001061 }
Jens Axboe87b10672009-03-04 09:39:47 +01001062 opened = 1;
1063 }
1064
Jens Axboe0b9d69e2009-09-11 22:29:54 +02001065 dprint(FD_FILE, "goodf=%x, badf=%x, ff=%x\n", goodf, badf,
1066 f->flags);
Jens Axboe1c178182007-03-13 13:25:18 +01001067 if ((!goodf || (f->flags & goodf)) && !(f->flags & badf))
Jens Axboe3d7c3912007-02-19 13:16:12 +01001068 break;
1069
Jens Axboe87b10672009-03-04 09:39:47 +01001070 if (opened)
1071 td_io_close_file(td, f);
1072
Jens Axboe3d7c3912007-02-19 13:16:12 +01001073 f = NULL;
1074 } while (td->next_file != old_next_file);
1075
Jens Axboe2ba1c292008-02-01 13:16:38 +01001076 dprint(FD_FILE, "get_next_file_rr: %p\n", f);
Jens Axboe3d7c3912007-02-19 13:16:12 +01001077 return f;
1078}
1079
Jens Axboe7eb36572010-03-08 13:58:49 +01001080static struct fio_file *__get_next_file(struct thread_data *td)
Jens Axboebdb4e2e2007-03-01 09:54:57 +01001081{
Jens Axboe1907dbc2007-03-12 11:44:28 +01001082 struct fio_file *f;
1083
Jens Axboe2dc1bbe2007-03-15 15:01:33 +01001084 assert(td->o.nr_files <= td->files_index);
Jens Axboe1c178182007-03-13 13:25:18 +01001085
Jens Axboeb5696bf2009-03-04 16:03:49 +01001086 if (td->nr_done_files >= td->o.nr_files) {
Jens Axboe5ec10ea2008-03-06 15:42:00 +01001087 dprint(FD_FILE, "get_next_file: nr_open=%d, nr_done=%d,"
1088 " nr_files=%d\n", td->nr_open_files,
1089 td->nr_done_files,
1090 td->o.nr_files);
Jens Axboebdb4e2e2007-03-01 09:54:57 +01001091 return NULL;
Jens Axboe2ba1c292008-02-01 13:16:38 +01001092 }
Jens Axboebdb4e2e2007-03-01 09:54:57 +01001093
Jens Axboe1907dbc2007-03-12 11:44:28 +01001094 f = td->file_service_file;
Jens Axboed6aed792009-06-03 08:41:15 +02001095 if (f && fio_file_open(f) && !fio_file_closing(f)) {
Jens Axboea086c252009-03-04 08:27:37 +01001096 if (td->o.file_service_type == FIO_FSERVICE_SEQ)
1097 goto out;
1098 if (td->file_service_left--)
1099 goto out;
1100 }
Jens Axboe1907dbc2007-03-12 11:44:28 +01001101
Jens Axboea086c252009-03-04 08:27:37 +01001102 if (td->o.file_service_type == FIO_FSERVICE_RR ||
1103 td->o.file_service_type == FIO_FSERVICE_SEQ)
Jens Axboed6aed792009-06-03 08:41:15 +02001104 f = get_next_file_rr(td, FIO_FILE_open, FIO_FILE_closing);
Jens Axboebdb4e2e2007-03-01 09:54:57 +01001105 else
Jens Axboed6aed792009-06-03 08:41:15 +02001106 f = get_next_file_rand(td, FIO_FILE_open, FIO_FILE_closing);
Jens Axboe1907dbc2007-03-12 11:44:28 +01001107
Jens Axboe002fe732014-02-11 08:31:13 -07001108 if (IS_ERR(f))
1109 return f;
1110
Jens Axboe1907dbc2007-03-12 11:44:28 +01001111 td->file_service_file = f;
1112 td->file_service_left = td->file_service_nr - 1;
Jens Axboe2ba1c292008-02-01 13:16:38 +01001113out:
Jens Axboe0dac4212014-02-25 13:43:17 -08001114 if (f)
1115 dprint(FD_FILE, "get_next_file: %p [%s]\n", f, f->file_name);
1116 else
1117 dprint(FD_FILE, "get_next_file: NULL\n");
Jens Axboe1907dbc2007-03-12 11:44:28 +01001118 return f;
Jens Axboebdb4e2e2007-03-01 09:54:57 +01001119}
1120
Jens Axboe7eb36572010-03-08 13:58:49 +01001121static struct fio_file *get_next_file(struct thread_data *td)
1122{
Andrey Kuzmin705fa7e2014-06-27 20:21:22 -06001123 if (td->flags & TD_F_PROFILE_OPS) {
Jens Axboed72be542012-11-30 19:37:46 +01001124 struct prof_io_ops *ops = &td->prof_io_ops;
Jens Axboe7eb36572010-03-08 13:58:49 +01001125
Jens Axboed72be542012-11-30 19:37:46 +01001126 if (ops->get_next_file)
1127 return ops->get_next_file(td);
1128 }
Jens Axboe7eb36572010-03-08 13:58:49 +01001129
1130 return __get_next_file(td);
1131}
1132
Jens Axboe002fe732014-02-11 08:31:13 -07001133static long set_io_u_file(struct thread_data *td, struct io_u *io_u)
Jens Axboe429f6672007-07-23 10:38:43 +02001134{
1135 struct fio_file *f;
1136
1137 do {
1138 f = get_next_file(td);
Jens Axboe002fe732014-02-11 08:31:13 -07001139 if (IS_ERR_OR_NULL(f))
1140 return PTR_ERR(f);
Jens Axboe429f6672007-07-23 10:38:43 +02001141
Jens Axboe429f6672007-07-23 10:38:43 +02001142 io_u->file = f;
1143 get_file(f);
1144
1145 if (!fill_io_u(td, io_u))
1146 break;
1147
Jens Axboeb5696bf2009-03-04 16:03:49 +01001148 put_file_log(td, f);
Jens Axboe429f6672007-07-23 10:38:43 +02001149 td_io_close_file(td, f);
Jens Axboeb5696bf2009-03-04 16:03:49 +01001150 io_u->file = NULL;
Jens Axboed6aed792009-06-03 08:41:15 +02001151 fio_file_set_done(f);
Jens Axboe429f6672007-07-23 10:38:43 +02001152 td->nr_done_files++;
Jens Axboe0b9d69e2009-09-11 22:29:54 +02001153 dprint(FD_FILE, "%s: is done (%d of %d)\n", f->file_name,
1154 td->nr_done_files, td->o.nr_files);
Jens Axboe429f6672007-07-23 10:38:43 +02001155 } while (1);
1156
1157 return 0;
1158}
1159
Jens Axboe3e260a42013-12-09 12:38:53 -07001160static void lat_fatal(struct thread_data *td, struct io_completion_data *icd,
1161 unsigned long tusec, unsigned long max_usec)
1162{
1163 if (!td->error)
1164 log_err("fio: latency of %lu usec exceeds specified max (%lu usec)\n", tusec, max_usec);
1165 td_verror(td, ETIMEDOUT, "max latency exceeded");
1166 icd->error = ETIMEDOUT;
1167}
1168
1169static void lat_new_cycle(struct thread_data *td)
1170{
1171 fio_gettime(&td->latency_ts, NULL);
1172 td->latency_ios = ddir_rw_sum(td->io_blocks);
1173 td->latency_failed = 0;
1174}
1175
1176/*
1177 * We had an IO outside the latency target. Reduce the queue depth. If we
1178 * are at QD=1, then it's time to give up.
1179 */
1180static int __lat_target_failed(struct thread_data *td)
1181{
1182 if (td->latency_qd == 1)
1183 return 1;
1184
1185 td->latency_qd_high = td->latency_qd;
Jens Axboe6bb58212014-02-21 13:55:31 -08001186
1187 if (td->latency_qd == td->latency_qd_low)
1188 td->latency_qd_low--;
1189
Jens Axboe3e260a42013-12-09 12:38:53 -07001190 td->latency_qd = (td->latency_qd + td->latency_qd_low) / 2;
1191
1192 dprint(FD_RATE, "Ramped down: %d %d %d\n", td->latency_qd_low, td->latency_qd, td->latency_qd_high);
1193
1194 /*
1195 * When we ramp QD down, quiesce existing IO to prevent
1196 * a storm of ramp downs due to pending higher depth.
1197 */
1198 io_u_quiesce(td);
1199 lat_new_cycle(td);
1200 return 0;
1201}
1202
1203static int lat_target_failed(struct thread_data *td)
1204{
1205 if (td->o.latency_percentile.u.f == 100.0)
1206 return __lat_target_failed(td);
1207
1208 td->latency_failed++;
1209 return 0;
1210}
1211
1212void lat_target_init(struct thread_data *td)
1213{
Jens Axboe6bb58212014-02-21 13:55:31 -08001214 td->latency_end_run = 0;
1215
Jens Axboe3e260a42013-12-09 12:38:53 -07001216 if (td->o.latency_target) {
1217 dprint(FD_RATE, "Latency target=%llu\n", td->o.latency_target);
1218 fio_gettime(&td->latency_ts, NULL);
1219 td->latency_qd = 1;
1220 td->latency_qd_high = td->o.iodepth;
1221 td->latency_qd_low = 1;
1222 td->latency_ios = ddir_rw_sum(td->io_blocks);
1223 } else
1224 td->latency_qd = td->o.iodepth;
1225}
1226
Jens Axboe6bb58212014-02-21 13:55:31 -08001227void lat_target_reset(struct thread_data *td)
1228{
1229 if (!td->latency_end_run)
1230 lat_target_init(td);
1231}
1232
Jens Axboe3e260a42013-12-09 12:38:53 -07001233static void lat_target_success(struct thread_data *td)
1234{
1235 const unsigned int qd = td->latency_qd;
Jens Axboe6bb58212014-02-21 13:55:31 -08001236 struct thread_options *o = &td->o;
Jens Axboe3e260a42013-12-09 12:38:53 -07001237
1238 td->latency_qd_low = td->latency_qd;
1239
1240 /*
1241 * If we haven't failed yet, we double up to a failing value instead
1242 * of bisecting from highest possible queue depth. If we have set
1243 * a limit other than td->o.iodepth, bisect between that.
1244 */
Jens Axboe6bb58212014-02-21 13:55:31 -08001245 if (td->latency_qd_high != o->iodepth)
Jens Axboe3e260a42013-12-09 12:38:53 -07001246 td->latency_qd = (td->latency_qd + td->latency_qd_high) / 2;
1247 else
1248 td->latency_qd *= 2;
1249
Jens Axboe6bb58212014-02-21 13:55:31 -08001250 if (td->latency_qd > o->iodepth)
1251 td->latency_qd = o->iodepth;
Jens Axboe3e260a42013-12-09 12:38:53 -07001252
1253 dprint(FD_RATE, "Ramped up: %d %d %d\n", td->latency_qd_low, td->latency_qd, td->latency_qd_high);
Jens Axboe6bb58212014-02-21 13:55:31 -08001254
Jens Axboe3e260a42013-12-09 12:38:53 -07001255 /*
Jens Axboe6bb58212014-02-21 13:55:31 -08001256 * Same as last one, we are done. Let it run a latency cycle, so
1257 * we get only the results from the targeted depth.
Jens Axboe3e260a42013-12-09 12:38:53 -07001258 */
Jens Axboe6bb58212014-02-21 13:55:31 -08001259 if (td->latency_qd == qd) {
1260 if (td->latency_end_run) {
1261 dprint(FD_RATE, "We are done\n");
1262 td->done = 1;
1263 } else {
1264 dprint(FD_RATE, "Quiesce and final run\n");
1265 io_u_quiesce(td);
1266 td->latency_end_run = 1;
1267 reset_all_stats(td);
1268 reset_io_stats(td);
1269 }
1270 }
Jens Axboe3e260a42013-12-09 12:38:53 -07001271
1272 lat_new_cycle(td);
1273}
1274
1275/*
1276 * Check if we can bump the queue depth
1277 */
1278void lat_target_check(struct thread_data *td)
1279{
1280 uint64_t usec_window;
1281 uint64_t ios;
1282 double success_ios;
1283
1284 usec_window = utime_since_now(&td->latency_ts);
1285 if (usec_window < td->o.latency_window)
1286 return;
1287
1288 ios = ddir_rw_sum(td->io_blocks) - td->latency_ios;
1289 success_ios = (double) (ios - td->latency_failed) / (double) ios;
1290 success_ios *= 100.0;
1291
1292 dprint(FD_RATE, "Success rate: %.2f%% (target %.2f%%)\n", success_ios, td->o.latency_percentile.u.f);
1293
1294 if (success_ios >= td->o.latency_percentile.u.f)
1295 lat_target_success(td);
1296 else
1297 __lat_target_failed(td);
1298}
1299
1300/*
1301 * If latency target is enabled, we might be ramping up or down and not
1302 * using the full queue depth available.
1303 */
Jens Axboe5a48d302014-09-30 13:29:57 -06001304int queue_full(const struct thread_data *td)
Jens Axboe3e260a42013-12-09 12:38:53 -07001305{
1306 const int qempty = io_u_qempty(&td->io_u_freelist);
1307
1308 if (qempty)
1309 return 1;
1310 if (!td->o.latency_target)
1311 return 0;
1312
1313 return td->cur_depth >= td->latency_qd;
1314}
Jens Axboe429f6672007-07-23 10:38:43 +02001315
Jens Axboe10ba5352006-10-20 11:39:27 +02001316struct io_u *__get_io_u(struct thread_data *td)
1317{
Jens Axboe0cae66f2014-03-03 13:55:32 -07001318 struct io_u *io_u = NULL;
Jens Axboe10ba5352006-10-20 11:39:27 +02001319
Jens Axboee8462bd2009-07-06 12:59:04 +02001320 td_io_u_lock(td);
1321
1322again:
Jens Axboe2ae0b202013-05-28 14:16:55 +02001323 if (!io_u_rempty(&td->io_u_requeues))
1324 io_u = io_u_rpop(&td->io_u_requeues);
Jens Axboe3e260a42013-12-09 12:38:53 -07001325 else if (!queue_full(td)) {
Jens Axboe2ae0b202013-05-28 14:16:55 +02001326 io_u = io_u_qpop(&td->io_u_freelist);
Jens Axboe10ba5352006-10-20 11:39:27 +02001327
Jens Axboe225ba9e2014-02-26 14:31:15 -08001328 io_u->file = NULL;
Jens Axboe6040dab2006-10-24 19:38:15 +02001329 io_u->buflen = 0;
Jens Axboe10ba5352006-10-20 11:39:27 +02001330 io_u->resid = 0;
Jens Axboed7762cf2007-02-23 12:34:57 +01001331 io_u->end_io = NULL;
Jens Axboe755200a2007-02-19 13:08:12 +01001332 }
1333
1334 if (io_u) {
Jens Axboe0c6e7512007-02-22 11:19:39 +01001335 assert(io_u->flags & IO_U_F_FREE);
Jens Axboee69fdf72014-07-23 16:11:43 +02001336 io_u->flags &= ~(IO_U_F_FREE | IO_U_F_NO_FILE_PUT |
1337 IO_U_F_TRIMMED | IO_U_F_BARRIER |
1338 IO_U_F_VER_LIST);
Jens Axboe0c6e7512007-02-22 11:19:39 +01001339
Jens Axboe755200a2007-02-19 13:08:12 +01001340 io_u->error = 0;
Jens Axboebcd5abf2013-01-23 09:27:25 -07001341 io_u->acct_ddir = -1;
Jens Axboe10ba5352006-10-20 11:39:27 +02001342 td->cur_depth++;
Radha Ramachandran0c412142009-11-03 21:45:31 +01001343 io_u->flags |= IO_U_F_IN_CUR_DEPTH;
Jens Axboef9401282014-02-06 12:17:37 -07001344 io_u->ipo = NULL;
Jens Axboe1dec3e02010-03-19 10:33:39 +01001345 } else if (td->o.verify_async) {
1346 /*
1347 * We ran out, wait for async verify threads to finish and
1348 * return one
1349 */
1350 pthread_cond_wait(&td->free_cond, &td->io_u_lock);
1351 goto again;
Jens Axboe10ba5352006-10-20 11:39:27 +02001352 }
1353
Jens Axboee8462bd2009-07-06 12:59:04 +02001354 td_io_u_unlock(td);
Jens Axboe10ba5352006-10-20 11:39:27 +02001355 return io_u;
1356}
1357
Jens Axboe0d29de82010-09-01 13:54:15 +02001358static int check_get_trim(struct thread_data *td, struct io_u *io_u)
Jens Axboe10ba5352006-10-20 11:39:27 +02001359{
Jens Axboed72be542012-11-30 19:37:46 +01001360 if (!(td->flags & TD_F_TRIM_BACKLOG))
1361 return 0;
1362
1363 if (td->trim_entries) {
Jens Axboe0d29de82010-09-01 13:54:15 +02001364 int get_trim = 0;
Jens Axboe10ba5352006-10-20 11:39:27 +02001365
Jens Axboe0d29de82010-09-01 13:54:15 +02001366 if (td->trim_batch) {
1367 td->trim_batch--;
1368 get_trim = 1;
1369 } else if (!(td->io_hist_len % td->o.trim_backlog) &&
1370 td->last_ddir != DDIR_READ) {
1371 td->trim_batch = td->o.trim_batch;
1372 if (!td->trim_batch)
1373 td->trim_batch = td->o.trim_backlog;
1374 get_trim = 1;
1375 }
1376
1377 if (get_trim && !get_next_trim(td, io_u))
1378 return 1;
Jens Axboe2ba1c292008-02-01 13:16:38 +01001379 }
Jens Axboe10ba5352006-10-20 11:39:27 +02001380
Jens Axboe0d29de82010-09-01 13:54:15 +02001381 return 0;
1382}
1383
1384static int check_get_verify(struct thread_data *td, struct io_u *io_u)
1385{
Jens Axboed72be542012-11-30 19:37:46 +01001386 if (!(td->flags & TD_F_VER_BACKLOG))
1387 return 0;
1388
1389 if (td->io_hist_len) {
Jens Axboe9e144182010-06-15 14:25:36 +02001390 int get_verify = 0;
1391
Jens Axboed1ece0c2012-03-07 09:32:58 +01001392 if (td->verify_batch)
Jens Axboe9e144182010-06-15 14:25:36 +02001393 get_verify = 1;
Jens Axboed1ece0c2012-03-07 09:32:58 +01001394 else if (!(td->io_hist_len % td->o.verify_backlog) &&
Jens Axboe9e144182010-06-15 14:25:36 +02001395 td->last_ddir != DDIR_READ) {
1396 td->verify_batch = td->o.verify_batch;
Jens Axboef8a75c92010-06-15 14:27:28 +02001397 if (!td->verify_batch)
1398 td->verify_batch = td->o.verify_backlog;
Jens Axboe9e144182010-06-15 14:25:36 +02001399 get_verify = 1;
1400 }
1401
Jens Axboed1ece0c2012-03-07 09:32:58 +01001402 if (get_verify && !get_next_verify(td, io_u)) {
1403 td->verify_batch--;
Jens Axboe0d29de82010-09-01 13:54:15 +02001404 return 1;
Jens Axboed1ece0c2012-03-07 09:32:58 +01001405 }
Jens Axboe9e144182010-06-15 14:25:36 +02001406 }
1407
Jens Axboe0d29de82010-09-01 13:54:15 +02001408 return 0;
1409}
1410
1411/*
Jens Axboede789762011-09-16 22:11:23 +02001412 * Fill offset and start time into the buffer content, to prevent too
Jens Axboe23f394d2011-09-16 22:45:27 +02001413 * easy compressible data for simple de-dupe attempts. Do this for every
1414 * 512b block in the range, since that should be the smallest block size
1415 * we can expect from a device.
Jens Axboede789762011-09-16 22:11:23 +02001416 */
1417static void small_content_scramble(struct io_u *io_u)
1418{
Jens Axboe23f394d2011-09-16 22:45:27 +02001419 unsigned int i, nr_blocks = io_u->buflen / 512;
Jens Axboe1ae83d42013-01-12 01:44:15 -07001420 uint64_t boffset;
Jens Axboe23f394d2011-09-16 22:45:27 +02001421 unsigned int offset;
1422 void *p, *end;
Jens Axboede789762011-09-16 22:11:23 +02001423
Jens Axboe23f394d2011-09-16 22:45:27 +02001424 if (!nr_blocks)
1425 return;
1426
1427 p = io_u->xfer_buf;
Jens Axboefba76ee2011-09-27 14:27:48 -06001428 boffset = io_u->offset;
Jens Axboe81f03662012-02-02 09:20:09 +01001429 io_u->buf_filled_len = 0;
Jens Axboefad82f72011-09-19 11:33:30 +02001430
Jens Axboe23f394d2011-09-16 22:45:27 +02001431 for (i = 0; i < nr_blocks; i++) {
1432 /*
1433 * Fill the byte offset into a "random" start offset of
1434 * the buffer, given by the product of the usec time
1435 * and the actual offset.
1436 */
Jens Axboefad82f72011-09-19 11:33:30 +02001437 offset = (io_u->start_time.tv_usec ^ boffset) & 511;
Jens Axboe1ae83d42013-01-12 01:44:15 -07001438 offset &= ~(sizeof(uint64_t) - 1);
1439 if (offset >= 512 - sizeof(uint64_t))
1440 offset -= sizeof(uint64_t);
Jens Axboefba76ee2011-09-27 14:27:48 -06001441 memcpy(p + offset, &boffset, sizeof(boffset));
Jens Axboe23f394d2011-09-16 22:45:27 +02001442
1443 end = p + 512 - sizeof(io_u->start_time);
1444 memcpy(end, &io_u->start_time, sizeof(io_u->start_time));
1445 p += 512;
Jens Axboefad82f72011-09-19 11:33:30 +02001446 boffset += 512;
Jens Axboe23f394d2011-09-16 22:45:27 +02001447 }
Jens Axboede789762011-09-16 22:11:23 +02001448}
1449
1450/*
Jens Axboe0d29de82010-09-01 13:54:15 +02001451 * Return an io_u to be processed. Gets a buflen and offset, sets direction,
1452 * etc. The returned io_u is fully ready to be prepped and submitted.
1453 */
1454struct io_u *get_io_u(struct thread_data *td)
1455{
1456 struct fio_file *f;
1457 struct io_u *io_u;
Jens Axboede789762011-09-16 22:11:23 +02001458 int do_scramble = 0;
Jens Axboe002fe732014-02-11 08:31:13 -07001459 long ret = 0;
Jens Axboe0d29de82010-09-01 13:54:15 +02001460
1461 io_u = __get_io_u(td);
1462 if (!io_u) {
1463 dprint(FD_IO, "__get_io_u failed\n");
1464 return NULL;
1465 }
1466
1467 if (check_get_verify(td, io_u))
1468 goto out;
1469 if (check_get_trim(td, io_u))
1470 goto out;
1471
Jens Axboe755200a2007-02-19 13:08:12 +01001472 /*
1473 * from a requeue, io_u already setup
1474 */
1475 if (io_u->file)
Jens Axboe77f392b2007-02-19 20:13:09 +01001476 goto out;
Jens Axboe755200a2007-02-19 13:08:12 +01001477
Jens Axboe429f6672007-07-23 10:38:43 +02001478 /*
1479 * If using an iolog, grab next piece if any available.
1480 */
Jens Axboed72be542012-11-30 19:37:46 +01001481 if (td->flags & TD_F_READ_IOLOG) {
Jens Axboe429f6672007-07-23 10:38:43 +02001482 if (read_iolog_get(td, io_u))
1483 goto err_put;
Jens Axboe2ba1c292008-02-01 13:16:38 +01001484 } else if (set_io_u_file(td, io_u)) {
Jens Axboe002fe732014-02-11 08:31:13 -07001485 ret = -EBUSY;
Jens Axboe2ba1c292008-02-01 13:16:38 +01001486 dprint(FD_IO, "io_u %p, setting file failed\n", io_u);
Jens Axboe429f6672007-07-23 10:38:43 +02001487 goto err_put;
Jens Axboe2ba1c292008-02-01 13:16:38 +01001488 }
Jens Axboe5ec10ea2008-03-06 15:42:00 +01001489
Jens Axboe429f6672007-07-23 10:38:43 +02001490 f = io_u->file;
Jens Axboe002fe732014-02-11 08:31:13 -07001491 if (!f) {
1492 dprint(FD_IO, "io_u %p, setting file failed\n", io_u);
1493 goto err_put;
1494 }
1495
Jens Axboed6aed792009-06-03 08:41:15 +02001496 assert(fio_file_open(f));
Jens Axboe97af62c2007-05-22 11:12:13 +02001497
Jens Axboeff58fce2010-08-25 12:02:08 +02001498 if (ddir_rw(io_u->ddir)) {
Jens Axboed0656a92008-02-01 18:33:23 +01001499 if (!io_u->buflen && !(td->io_ops->flags & FIO_NOIO)) {
Jens Axboe2ba1c292008-02-01 13:16:38 +01001500 dprint(FD_IO, "get_io_u: zero buflen on %p\n", io_u);
Jens Axboe429f6672007-07-23 10:38:43 +02001501 goto err_put;
Jens Axboe2ba1c292008-02-01 13:16:38 +01001502 }
Jens Axboe87dc1ab2006-10-24 14:41:26 +02001503
Jens Axboe38dad622010-07-20 14:46:00 -06001504 f->last_start = io_u->offset;
Jens Axboe36167d82007-02-18 05:41:31 +01001505 f->last_pos = io_u->offset + io_u->buflen;
Jens Axboe87dc1ab2006-10-24 14:41:26 +02001506
Jens Axboefd684182011-09-19 09:24:44 +02001507 if (io_u->ddir == DDIR_WRITE) {
Jens Axboed72be542012-11-30 19:37:46 +01001508 if (td->flags & TD_F_REFILL_BUFFERS) {
Jens Axboe9c426842012-03-02 21:02:12 +01001509 io_u_fill_buffer(td, io_u,
Jens Axboe8e0aa162014-09-26 15:04:58 -06001510 td->o.min_bs[DDIR_WRITE],
1511 io_u->xfer_buflen);
Jens Axboebedc9dc2014-03-17 12:51:09 -06001512 } else if ((td->flags & TD_F_SCRAMBLE_BUFFERS) &&
1513 !(td->flags & TD_F_COMPRESS))
Jens Axboefd684182011-09-19 09:24:44 +02001514 do_scramble = 1;
Jens Axboed72be542012-11-30 19:37:46 +01001515 if (td->flags & TD_F_VER_NONE) {
Jens Axboe629f1d72012-03-09 19:02:01 +01001516 populate_verify_io_u(td, io_u);
1517 do_scramble = 0;
1518 }
Jens Axboefd684182011-09-19 09:24:44 +02001519 } else if (io_u->ddir == DDIR_READ) {
Radha Ramachandrancbe8d752010-07-14 08:36:07 +02001520 /*
1521 * Reset the buf_filled parameters so next time if the
1522 * buffer is used for writes it is refilled.
1523 */
Radha Ramachandrancbe8d752010-07-14 08:36:07 +02001524 io_u->buf_filled_len = 0;
1525 }
Jens Axboe10ba5352006-10-20 11:39:27 +02001526 }
1527
Jens Axboe165faf12007-02-07 11:30:37 +01001528 /*
1529 * Set io data pointers.
1530 */
Jens Axboecec6b552007-02-06 20:15:38 +01001531 io_u->xfer_buf = io_u->buf;
1532 io_u->xfer_buflen = io_u->buflen;
Jens Axboe5973caf2008-05-21 19:52:35 +02001533
Jens Axboe6ac7a332008-03-01 15:22:32 +01001534out:
Jens Axboe0d29de82010-09-01 13:54:15 +02001535 assert(io_u->file);
Jens Axboe429f6672007-07-23 10:38:43 +02001536 if (!td_io_prep(td, io_u)) {
Jens Axboe993bf482008-11-14 13:04:53 +01001537 if (!td->o.disable_slat)
1538 fio_gettime(&io_u->start_time, NULL);
Jens Axboede789762011-09-16 22:11:23 +02001539 if (do_scramble)
1540 small_content_scramble(io_u);
Jens Axboe429f6672007-07-23 10:38:43 +02001541 return io_u;
Jens Axboe36167d82007-02-18 05:41:31 +01001542 }
Jens Axboe429f6672007-07-23 10:38:43 +02001543err_put:
Jens Axboe2ba1c292008-02-01 13:16:38 +01001544 dprint(FD_IO, "get_io_u failed\n");
Jens Axboe429f6672007-07-23 10:38:43 +02001545 put_io_u(td, io_u);
Jens Axboe002fe732014-02-11 08:31:13 -07001546 return ERR_PTR(ret);
Jens Axboe10ba5352006-10-20 11:39:27 +02001547}
1548
Jens Axboe54517922007-03-05 10:06:06 +01001549void io_u_log_error(struct thread_data *td, struct io_u *io_u)
1550{
Dmitry Monakhov8b28bd42012-09-23 15:46:09 +04001551 enum error_type_bit eb = td_error_type(io_u->ddir, io_u->error);
Jens Axboe825f8182010-08-25 10:47:18 +02001552
Dmitry Monakhov8b28bd42012-09-23 15:46:09 +04001553 if (td_non_fatal_error(td, eb, io_u->error) && !td->o.error_dump)
1554 return;
Jens Axboe54517922007-03-05 10:06:06 +01001555
Robert Elliott2cbdcdb2014-09-16 17:09:48 -05001556 log_err("fio: io_u error%s%s: %s: %s offset=%llu, buflen=%lu\n",
1557 io_u->file ? " on file " : "",
1558 io_u->file ? io_u->file->file_name : "",
1559 strerror(io_u->error),
1560 io_ddir_name(io_u->ddir),
1561 io_u->offset, io_u->xfer_buflen);
Jens Axboe54517922007-03-05 10:06:06 +01001562
1563 if (!td->error)
1564 td_verror(td, io_u->error, "io_u error");
1565}
1566
Jens Axboeaba6c952014-02-13 19:59:56 -07001567static inline int gtod_reduce(struct thread_data *td)
1568{
Jens Axboe729fe3a2014-02-14 08:46:35 -07001569 return td->o.disable_clat && td->o.disable_lat && td->o.disable_slat
Jens Axboeb74b8202014-02-13 20:04:02 -07001570 && td->o.disable_bw;
Jens Axboeaba6c952014-02-13 19:59:56 -07001571}
1572
Jens Axboec8eeb9d2011-10-05 14:02:22 +02001573static void account_io_completion(struct thread_data *td, struct io_u *io_u,
1574 struct io_completion_data *icd,
1575 const enum fio_ddir idx, unsigned int bytes)
1576{
Jens Axboe24d23ca2012-11-13 08:31:24 -07001577 unsigned long lusec = 0;
Jens Axboec8eeb9d2011-10-05 14:02:22 +02001578
Jens Axboeaba6c952014-02-13 19:59:56 -07001579 if (!gtod_reduce(td))
Jens Axboec8eeb9d2011-10-05 14:02:22 +02001580 lusec = utime_since(&io_u->issue_time, &icd->time);
1581
1582 if (!td->o.disable_lat) {
1583 unsigned long tusec;
1584
1585 tusec = utime_since(&io_u->start_time, &icd->time);
Jens Axboeccefd5f2014-06-30 20:59:03 -06001586 add_lat_sample(td, idx, tusec, bytes, io_u->offset);
Jens Axboe15501532012-10-24 16:37:45 +02001587
Jens Axboed4afedf2013-05-22 22:21:29 +02001588 if (td->flags & TD_F_PROFILE_OPS) {
1589 struct prof_io_ops *ops = &td->prof_io_ops;
1590
1591 if (ops->io_u_lat)
1592 icd->error = ops->io_u_lat(td, tusec);
1593 }
1594
Jens Axboe3e260a42013-12-09 12:38:53 -07001595 if (td->o.max_latency && tusec > td->o.max_latency)
1596 lat_fatal(td, icd, tusec, td->o.max_latency);
1597 if (td->o.latency_target && tusec > td->o.latency_target) {
1598 if (lat_target_failed(td))
1599 lat_fatal(td, icd, tusec, td->o.latency_target);
Jens Axboe15501532012-10-24 16:37:45 +02001600 }
Jens Axboec8eeb9d2011-10-05 14:02:22 +02001601 }
1602
1603 if (!td->o.disable_clat) {
Jens Axboeccefd5f2014-06-30 20:59:03 -06001604 add_clat_sample(td, idx, lusec, bytes, io_u->offset);
Jens Axboec8eeb9d2011-10-05 14:02:22 +02001605 io_u_mark_latency(td, lusec);
1606 }
1607
1608 if (!td->o.disable_bw)
1609 add_bw_sample(td, idx, bytes, &icd->time);
1610
Jens Axboeaba6c952014-02-13 19:59:56 -07001611 if (!gtod_reduce(td))
1612 add_iops_sample(td, idx, bytes, &icd->time);
Jens Axboec8eeb9d2011-10-05 14:02:22 +02001613}
1614
Steven Lang1b8dbf22011-11-09 13:48:01 +01001615static long long usec_for_io(struct thread_data *td, enum fio_ddir ddir)
1616{
Jens Axboe1ae83d42013-01-12 01:44:15 -07001617 uint64_t secs, remainder, bps, bytes;
1618
Steven Lang1b8dbf22011-11-09 13:48:01 +01001619 bytes = td->this_io_bytes[ddir];
1620 bps = td->rate_bps[ddir];
1621 secs = bytes / bps;
1622 remainder = bytes % bps;
1623 return remainder * 1000000 / bps + secs * 1000000;
1624}
1625
Jens Axboee69fdf72014-07-23 16:11:43 +02001626static void io_completed(struct thread_data *td, struct io_u **io_u_ptr,
Jens Axboe97601022007-02-18 12:47:29 +01001627 struct io_completion_data *icd)
Jens Axboe10ba5352006-10-20 11:39:27 +02001628{
Jens Axboee69fdf72014-07-23 16:11:43 +02001629 struct io_u *io_u = *io_u_ptr;
1630 enum fio_ddir ddir = io_u->ddir;
1631 struct fio_file *f = io_u->file;
Jens Axboe10ba5352006-10-20 11:39:27 +02001632
Jens Axboe2ba1c292008-02-01 13:16:38 +01001633 dprint_io_u(io_u, "io complete");
1634
Jens Axboe2ecc1b52009-11-04 20:58:09 +01001635 td_io_u_lock(td);
Jens Axboe0c6e7512007-02-22 11:19:39 +01001636 assert(io_u->flags & IO_U_F_FLIGHT);
Jens Axboe38dad622010-07-20 14:46:00 -06001637 io_u->flags &= ~(IO_U_F_FLIGHT | IO_U_F_BUSY_OK);
Jens Axboef9401282014-02-06 12:17:37 -07001638
1639 /*
1640 * Mark IO ok to verify
1641 */
1642 if (io_u->ipo) {
Jens Axboe890b6652014-05-06 19:06:51 -06001643 /*
1644 * Remove errored entry from the verification list
1645 */
1646 if (io_u->error)
1647 unlog_io_piece(td, io_u);
1648 else {
1649 io_u->ipo->flags &= ~IP_F_IN_FLIGHT;
1650 write_barrier();
1651 }
Jens Axboef9401282014-02-06 12:17:37 -07001652 }
1653
Jens Axboe2ecc1b52009-11-04 20:58:09 +01001654 td_io_u_unlock(td);
Jens Axboe0c6e7512007-02-22 11:19:39 +01001655
Jens Axboee69fdf72014-07-23 16:11:43 +02001656 if (ddir_sync(ddir)) {
Jens Axboe87dc1ab2006-10-24 14:41:26 +02001657 td->last_was_sync = 1;
Jens Axboe44f29692010-03-09 20:09:44 +01001658 if (f) {
1659 f->first_write = -1ULL;
1660 f->last_write = -1ULL;
1661 }
Jens Axboe87dc1ab2006-10-24 14:41:26 +02001662 return;
1663 }
1664
1665 td->last_was_sync = 0;
Jens Axboee69fdf72014-07-23 16:11:43 +02001666 td->last_ddir = ddir;
Jens Axboe87dc1ab2006-10-24 14:41:26 +02001667
Jens Axboee69fdf72014-07-23 16:11:43 +02001668 if (!io_u->error && ddir_rw(ddir)) {
Jens Axboe10ba5352006-10-20 11:39:27 +02001669 unsigned int bytes = io_u->buflen - io_u->resid;
Jens Axboee69fdf72014-07-23 16:11:43 +02001670 const enum fio_ddir oddir = ddir ^ 1;
Jens Axboeb29ee5b2008-09-11 10:17:26 +02001671 int ret;
Jens Axboe10ba5352006-10-20 11:39:27 +02001672
Jens Axboee69fdf72014-07-23 16:11:43 +02001673 td->io_blocks[ddir]++;
1674 td->this_io_blocks[ddir]++;
1675 td->io_bytes[ddir] += bytes;
webeeae2fafc2012-03-23 13:41:41 +01001676
1677 if (!(io_u->flags & IO_U_F_VER_LIST))
Jens Axboee69fdf72014-07-23 16:11:43 +02001678 td->this_io_bytes[ddir] += bytes;
Jens Axboe10ba5352006-10-20 11:39:27 +02001679
Jens Axboee69fdf72014-07-23 16:11:43 +02001680 if (ddir == DDIR_WRITE && f) {
1681 if (f->first_write == -1ULL ||
1682 io_u->offset < f->first_write)
1683 f->first_write = io_u->offset;
1684 if (f->last_write == -1ULL ||
1685 ((io_u->offset + bytes) > f->last_write))
1686 f->last_write = io_u->offset + bytes;
Jens Axboe44f29692010-03-09 20:09:44 +01001687 }
1688
Steven Lang6b1190f2012-02-07 09:42:59 +01001689 if (ramp_time_over(td) && (td->runstate == TD_RUNNING ||
1690 td->runstate == TD_VERIFYING)) {
Jens Axboee69fdf72014-07-23 16:11:43 +02001691 account_io_completion(td, io_u, icd, ddir, bytes);
Jens Axboe40e1a6f2009-06-11 10:55:39 +02001692
Jens Axboee69fdf72014-07-23 16:11:43 +02001693 if (__should_check_rate(td, ddir)) {
1694 td->rate_pending_usleep[ddir] =
1695 (usec_for_io(td, ddir) -
Radha Ramachandranba3e4e02009-12-09 22:31:44 +01001696 utime_since_now(&td->start));
Jens Axboeb23b6a22009-06-11 22:06:23 +02001697 }
Jens Axboee69fdf72014-07-23 16:11:43 +02001698 if (ddir != DDIR_TRIM &&
1699 __should_check_rate(td, oddir)) {
1700 td->rate_pending_usleep[oddir] =
1701 (usec_for_io(td, oddir) -
Radha Ramachandranba3e4e02009-12-09 22:31:44 +01001702 utime_since_now(&td->start));
Jens Axboee69fdf72014-07-23 16:11:43 +02001703 }
Jens Axboe721938a2008-09-10 09:46:16 +02001704 }
Jens Axboe10ba5352006-10-20 11:39:27 +02001705
Jens Axboee69fdf72014-07-23 16:11:43 +02001706 icd->bytes_done[ddir] += bytes;
Jens Axboe3af6ef32007-02-18 06:57:43 +01001707
Jens Axboed7762cf2007-02-23 12:34:57 +01001708 if (io_u->end_io) {
Jens Axboee69fdf72014-07-23 16:11:43 +02001709 ret = io_u->end_io(td, io_u_ptr);
1710 io_u = *io_u_ptr;
Jens Axboe3af6ef32007-02-18 06:57:43 +01001711 if (ret && !icd->error)
1712 icd->error = ret;
1713 }
Jens Axboeff58fce2010-08-25 12:02:08 +02001714 } else if (io_u->error) {
Jens Axboe10ba5352006-10-20 11:39:27 +02001715 icd->error = io_u->error;
Jens Axboe54517922007-03-05 10:06:06 +01001716 io_u_log_error(td, io_u);
1717 }
Dmitry Monakhov8b28bd42012-09-23 15:46:09 +04001718 if (icd->error) {
Jens Axboee69fdf72014-07-23 16:11:43 +02001719 enum error_type_bit eb = td_error_type(ddir, icd->error);
1720
Dmitry Monakhov8b28bd42012-09-23 15:46:09 +04001721 if (!td_non_fatal_error(td, eb, icd->error))
1722 return;
Jens Axboee69fdf72014-07-23 16:11:43 +02001723
Radha Ramachandranf2bba182009-06-15 08:40:16 +02001724 /*
1725 * If there is a non_fatal error, then add to the error count
1726 * and clear all the errors.
1727 */
1728 update_error_count(td, icd->error);
1729 td_clear_error(td);
1730 icd->error = 0;
Jens Axboee69fdf72014-07-23 16:11:43 +02001731 if (io_u)
1732 io_u->error = 0;
Radha Ramachandranf2bba182009-06-15 08:40:16 +02001733 }
Jens Axboe10ba5352006-10-20 11:39:27 +02001734}
1735
Jens Axboe9520ebb2008-10-16 21:03:27 +02001736static void init_icd(struct thread_data *td, struct io_completion_data *icd,
1737 int nr)
Jens Axboe36167d82007-02-18 05:41:31 +01001738{
Shaohua Li6eaf09d2012-09-14 08:49:43 +02001739 int ddir;
Jens Axboeaba6c952014-02-13 19:59:56 -07001740
1741 if (!gtod_reduce(td))
Jens Axboe9520ebb2008-10-16 21:03:27 +02001742 fio_gettime(&icd->time, NULL);
Jens Axboe36167d82007-02-18 05:41:31 +01001743
Jens Axboe3af6ef32007-02-18 06:57:43 +01001744 icd->nr = nr;
1745
Jens Axboe36167d82007-02-18 05:41:31 +01001746 icd->error = 0;
Shaohua Li6eaf09d2012-09-14 08:49:43 +02001747 for (ddir = DDIR_READ; ddir < DDIR_RWDIR_CNT; ddir++)
1748 icd->bytes_done[ddir] = 0;
Jens Axboe36167d82007-02-18 05:41:31 +01001749}
1750
Jens Axboe97601022007-02-18 12:47:29 +01001751static void ios_completed(struct thread_data *td,
1752 struct io_completion_data *icd)
Jens Axboe10ba5352006-10-20 11:39:27 +02001753{
1754 struct io_u *io_u;
1755 int i;
1756
Jens Axboe10ba5352006-10-20 11:39:27 +02001757 for (i = 0; i < icd->nr; i++) {
1758 io_u = td->io_ops->event(td, i);
1759
Jens Axboee69fdf72014-07-23 16:11:43 +02001760 io_completed(td, &io_u, icd);
Jens Axboee8462bd2009-07-06 12:59:04 +02001761
Jens Axboee69fdf72014-07-23 16:11:43 +02001762 if (io_u)
Jens Axboee8462bd2009-07-06 12:59:04 +02001763 put_io_u(td, io_u);
Jens Axboe10ba5352006-10-20 11:39:27 +02001764 }
1765}
Jens Axboe97601022007-02-18 12:47:29 +01001766
Jens Axboee7e6cfb2007-02-20 10:58:34 +01001767/*
1768 * Complete a single io_u for the sync engines.
1769 */
Jens Axboe581e7142009-06-09 12:47:16 +02001770int io_u_sync_complete(struct thread_data *td, struct io_u *io_u,
Jens Axboe100f49f2013-01-23 10:15:57 -07001771 uint64_t *bytes)
Jens Axboe97601022007-02-18 12:47:29 +01001772{
1773 struct io_completion_data icd;
1774
Jens Axboe9520ebb2008-10-16 21:03:27 +02001775 init_icd(td, &icd, 1);
Jens Axboee69fdf72014-07-23 16:11:43 +02001776 io_completed(td, &io_u, &icd);
Jens Axboee8462bd2009-07-06 12:59:04 +02001777
Jens Axboee69fdf72014-07-23 16:11:43 +02001778 if (io_u)
Jens Axboee8462bd2009-07-06 12:59:04 +02001779 put_io_u(td, io_u);
Jens Axboe97601022007-02-18 12:47:29 +01001780
Jens Axboe581e7142009-06-09 12:47:16 +02001781 if (icd.error) {
1782 td_verror(td, icd.error, "io_u_sync_complete");
1783 return -1;
1784 }
Jens Axboe97601022007-02-18 12:47:29 +01001785
Jens Axboe581e7142009-06-09 12:47:16 +02001786 if (bytes) {
Shaohua Li6eaf09d2012-09-14 08:49:43 +02001787 int ddir;
1788
1789 for (ddir = DDIR_READ; ddir < DDIR_RWDIR_CNT; ddir++)
1790 bytes[ddir] += icd.bytes_done[ddir];
Jens Axboe581e7142009-06-09 12:47:16 +02001791 }
1792
1793 return 0;
Jens Axboe97601022007-02-18 12:47:29 +01001794}
1795
Jens Axboee7e6cfb2007-02-20 10:58:34 +01001796/*
1797 * Called to complete min_events number of io for the async engines.
1798 */
Jens Axboe581e7142009-06-09 12:47:16 +02001799int io_u_queued_complete(struct thread_data *td, int min_evts,
Jens Axboe100f49f2013-01-23 10:15:57 -07001800 uint64_t *bytes)
Jens Axboe97601022007-02-18 12:47:29 +01001801{
Jens Axboe97601022007-02-18 12:47:29 +01001802 struct io_completion_data icd;
Jens Axboe00de55e2007-02-20 10:45:57 +01001803 struct timespec *tvp = NULL;
Jens Axboe97601022007-02-18 12:47:29 +01001804 int ret;
Davide Libenzi4d06a332007-03-22 07:43:50 +01001805 struct timespec ts = { .tv_sec = 0, .tv_nsec = 0, };
Jens Axboe97601022007-02-18 12:47:29 +01001806
Jens Axboe49504212008-06-05 09:03:30 +02001807 dprint(FD_IO, "io_u_queued_completed: min=%d\n", min_evts);
Jens Axboeb271fe62008-02-04 10:49:41 +01001808
Jens Axboe49504212008-06-05 09:03:30 +02001809 if (!min_evts)
Jens Axboe00de55e2007-02-20 10:45:57 +01001810 tvp = &ts;
Robert Elliott05074832014-09-04 13:51:05 -06001811 else if (min_evts > td->cur_depth)
1812 min_evts = td->cur_depth;
Jens Axboe97601022007-02-18 12:47:29 +01001813
Jens Axboe49504212008-06-05 09:03:30 +02001814 ret = td_io_getevents(td, min_evts, td->o.iodepth_batch_complete, tvp);
Jens Axboe97601022007-02-18 12:47:29 +01001815 if (ret < 0) {
Jens Axboee1161c32007-02-22 19:36:48 +01001816 td_verror(td, -ret, "td_io_getevents");
Jens Axboe97601022007-02-18 12:47:29 +01001817 return ret;
1818 } else if (!ret)
1819 return ret;
1820
Jens Axboe9520ebb2008-10-16 21:03:27 +02001821 init_icd(td, &icd, ret);
Jens Axboe97601022007-02-18 12:47:29 +01001822 ios_completed(td, &icd);
Jens Axboe581e7142009-06-09 12:47:16 +02001823 if (icd.error) {
1824 td_verror(td, icd.error, "io_u_queued_complete");
1825 return -1;
1826 }
Jens Axboe97601022007-02-18 12:47:29 +01001827
Jens Axboe581e7142009-06-09 12:47:16 +02001828 if (bytes) {
Shaohua Li6eaf09d2012-09-14 08:49:43 +02001829 int ddir;
1830
1831 for (ddir = DDIR_READ; ddir < DDIR_RWDIR_CNT; ddir++)
1832 bytes[ddir] += icd.bytes_done[ddir];
Jens Axboe581e7142009-06-09 12:47:16 +02001833 }
1834
1835 return 0;
Jens Axboe97601022007-02-18 12:47:29 +01001836}
Jens Axboe7e77dd02007-02-20 10:57:34 +01001837
1838/*
1839 * Call when io_u is really queued, to update the submission latency.
1840 */
1841void io_u_queued(struct thread_data *td, struct io_u *io_u)
1842{
Jens Axboe9520ebb2008-10-16 21:03:27 +02001843 if (!td->o.disable_slat) {
1844 unsigned long slat_time;
Jens Axboe7e77dd02007-02-20 10:57:34 +01001845
Jens Axboe9520ebb2008-10-16 21:03:27 +02001846 slat_time = utime_since(&io_u->start_time, &io_u->issue_time);
Jens Axboeccefd5f2014-06-30 20:59:03 -06001847 add_slat_sample(td, io_u->ddir, slat_time, io_u->xfer_buflen,
1848 io_u->offset);
Jens Axboe9520ebb2008-10-16 21:03:27 +02001849 }
Jens Axboe7e77dd02007-02-20 10:57:34 +01001850}
Jens Axboe433afcb2007-02-22 10:39:01 +01001851
Jens Axboee66dac22014-09-22 10:02:07 -06001852/*
1853 * See if we should reuse the last seed, if dedupe is enabled
1854 */
1855static struct frand_state *get_buf_state(struct thread_data *td)
1856{
1857 unsigned int v;
1858 unsigned long r;
1859
1860 if (!td->o.dedupe_percentage)
1861 return &td->buf_state;
Jens Axboe64d3bab2014-09-22 14:20:05 -06001862 else if (td->o.dedupe_percentage == 100)
1863 return &td->buf_state_prev;
Jens Axboee66dac22014-09-22 10:02:07 -06001864
1865 r = __rand(&td->dedupe_state);
1866 v = 1 + (int) (100.0 * (r / (FRAND_MAX + 1.0)));
1867
1868 if (v <= td->o.dedupe_percentage)
1869 return &td->buf_state_prev;
1870
1871 return &td->buf_state;
1872}
1873
1874static void save_buf_state(struct thread_data *td, struct frand_state *rs)
1875{
1876 if (rs == &td->buf_state)
1877 frand_copy(&td->buf_state_prev, rs);
1878}
1879
Jens Axboecc86c392013-05-03 15:12:33 +02001880void fill_io_buffer(struct thread_data *td, void *buf, unsigned int min_write,
1881 unsigned int max_bs)
Jens Axboe5973caf2008-05-21 19:52:35 +02001882{
Jens Axboece35b1e2014-01-14 15:35:58 -07001883 if (td->o.buffer_pattern_bytes)
1884 fill_buffer_pattern(td, buf, max_bs);
1885 else if (!td->o.zero_buffers) {
Jens Axboe9c426842012-03-02 21:02:12 +01001886 unsigned int perc = td->o.compress_percentage;
Jens Axboee66dac22014-09-22 10:02:07 -06001887 struct frand_state *rs;
Jens Axboe8e0aa162014-09-26 15:04:58 -06001888 unsigned int left = max_bs;
Jens Axboee66dac22014-09-22 10:02:07 -06001889
Jens Axboe8e0aa162014-09-26 15:04:58 -06001890 do {
1891 rs = get_buf_state(td);
Jens Axboe9c426842012-03-02 21:02:12 +01001892
Jens Axboe8e0aa162014-09-26 15:04:58 -06001893 min_write = min(min_write, left);
Jens Axboef97a43a2012-03-09 19:06:24 +01001894
Jens Axboe8e0aa162014-09-26 15:04:58 -06001895 if (perc) {
1896 unsigned int seg = min_write;
Jens Axboecc86c392013-05-03 15:12:33 +02001897
Jens Axboe8e0aa162014-09-26 15:04:58 -06001898 seg = min(min_write, td->o.compress_chunk);
1899 if (!seg)
1900 seg = min_write;
1901
1902 fill_random_buf_percentage(rs, buf, perc, seg,
1903 min_write);
1904 } else
1905 fill_random_buf(rs, buf, min_write);
1906
1907 buf += min_write;
1908 left -= min_write;
Jens Axboee66dac22014-09-22 10:02:07 -06001909 save_buf_state(td, rs);
Jens Axboe8e0aa162014-09-26 15:04:58 -06001910 } while (left);
Jens Axboe9c426842012-03-02 21:02:12 +01001911 } else
Jens Axboecc86c392013-05-03 15:12:33 +02001912 memset(buf, 0, max_bs);
1913}
1914
1915/*
1916 * "randomly" fill the buffer contents
1917 */
1918void io_u_fill_buffer(struct thread_data *td, struct io_u *io_u,
1919 unsigned int min_write, unsigned int max_bs)
1920{
1921 io_u->buf_filled_len = 0;
1922 fill_io_buffer(td, io_u->buf, min_write, max_bs);
Jens Axboe5973caf2008-05-21 19:52:35 +02001923}