projects / fio.git / blame_incremental
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (non-incremental) | history | HEAD
Add possibility to make sequential IO "holed"
[fio.git] / fio.h
... / ...
CommitLineData
1#ifndef FIO_H
2#define FIO_H
3
4#include <sched.h>
5#include <limits.h>
6#include <pthread.h>
7#include <sys/time.h>
8#include <sys/resource.h>
9#include <errno.h>
10#include <stdlib.h>
11#include <stdio.h>
12#include <unistd.h>
13#include <string.h>
14#include <inttypes.h>
15#include <assert.h>
16
17struct thread_data;
18
19#include "compiler/compiler.h"
20#include "flist.h"
21#include "fifo.h"
22#include "rbtree.h"
23#include "arch/arch.h"
24#include "os/os.h"
25#include "mutex.h"
26#include "log.h"
27#include "debug.h"
28#include "file.h"
29#include "io_ddir.h"
30#include "ioengine.h"
31#include "iolog.h"
32#include "helpers.h"
33#include "options.h"
34#include "profile.h"
35#include "time.h"
36#include "lib/getopt.h"
37#include "lib/rand.h"
38
39#ifdef FIO_HAVE_GUASI
40#include <guasi.h>
41#endif
42
43#ifdef FIO_HAVE_SOLARISAIO
44#include <sys/asynch.h>
45#endif
46
47struct group_run_stats {
48 unsigned long long max_run[2], min_run[2];
49 unsigned long long max_bw[2], min_bw[2];
50 unsigned long long io_kb[2];
51 unsigned long long agg[2];
52 unsigned int kb_base;
53};
54
55/*
56 * What type of allocation to use for io buffers
57 */
58enum fio_memtype {
59 MEM_MALLOC = 0, /* ordinary malloc */
60 MEM_SHM, /* use shared memory segments */
61 MEM_SHMHUGE, /* use shared memory segments with huge pages */
62 MEM_MMAP, /* use anonynomous mmap */
63 MEM_MMAPHUGE, /* memory mapped huge file */
64};
65
66/*
67 * offset generator types
68 */
69enum {
70 RW_SEQ_SEQ = 0,
71 RW_SEQ_IDENT,
72};
73
74/*
75 * How many depth levels to log
76 */
77#define FIO_IO_U_MAP_NR 7
78#define FIO_IO_U_LAT_U_NR 10
79#define FIO_IO_U_LAT_M_NR 12
80
81/*
82 * Aggregate clat samples to report percentile(s) of them.
83 *
84 * EXECUTIVE SUMMARY
85 *
86 * FIO_IO_U_PLAT_BITS determines the maximum statistical error on the
87 * value of resulting percentiles. The error will be approximately
88 * 1/2^(FIO_IO_U_PLAT_BITS+1) of the value.
89 *
90 * FIO_IO_U_PLAT_GROUP_NR and FIO_IO_U_PLAT_BITS determine the maximum
91 * range being tracked for latency samples. The maximum value tracked
92 * accurately will be 2^(GROUP_NR + PLAT_BITS -1) microseconds.
93 *
94 * FIO_IO_U_PLAT_GROUP_NR and FIO_IO_U_PLAT_BITS determine the memory
95 * requirement of storing those aggregate counts. The memory used will
96 * be (FIO_IO_U_PLAT_GROUP_NR * 2^FIO_IO_U_PLAT_BITS) * sizeof(int)
97 * bytes.
98 *
99 * FIO_IO_U_PLAT_NR is the total number of buckets.
100 *
101 * DETAILS
102 *
103 * Suppose the clat varies from 0 to 999 (usec), the straightforward
104 * method is to keep an array of (999 + 1) buckets, in which a counter
105 * keeps the count of samples which fall in the bucket, e.g.,
106 * {[0],[1],...,[999]}. However this consumes a huge amount of space,
107 * and can be avoided if an approximation is acceptable.
108 *
109 * One such method is to let the range of the bucket to be greater
110 * than one. This method has low accuracy when the value is small. For
111 * example, let the buckets be {[0,99],[100,199],...,[900,999]}, and
112 * the represented value of each bucket be the mean of the range. Then
113 * a value 0 has an round-off error of 49.5. To improve on this, we
114 * use buckets with non-uniform ranges, while bounding the error of
115 * each bucket within a ratio of the sample value. A simple example
116 * would be when error_bound = 0.005, buckets are {
117 * {[0],[1],...,[99]}, {[100,101],[102,103],...,[198,199]},..,
118 * {[900,909],[910,919]...} }. The total range is partitioned into
119 * groups with different ranges, then buckets with uniform ranges. An
120 * upper bound of the error is (range_of_bucket/2)/value_of_bucket
121 *
122 * For better efficiency, we implement this using base two. We group
123 * samples by their Most Significant Bit (MSB), extract the next M bit
124 * of them as an index within the group, and discard the rest of the
125 * bits.
126 *
127 * E.g., assume a sample 'x' whose MSB is bit n (starting from bit 0),
128 * and use M bit for indexing
129 *
130 * | n | M bits | bit (n-M-1) ... bit 0 |
131 *
132 * Because x is at least 2^n, and bit 0 to bit (n-M-1) is at most
133 * (2^(n-M) - 1), discarding bit 0 to (n-M-1) makes the round-off
134 * error
135 *
136 * 2^(n-M)-1 2^(n-M) 1
137 * e <= --------- <= ------- = ---
138 * 2^n 2^n 2^M
139 *
140 * Furthermore, we use "mean" of the range to represent the bucket,
141 * the error e can be lowered by half to 1 / 2^(M+1). By using M bits
142 * as the index, each group must contains 2^M buckets.
143 *
144 * E.g. Let M (FIO_IO_U_PLAT_BITS) be 6
145 * Error bound is 1/2^(6+1) = 0.0078125 (< 1%)
146 *
147 * Group MSB #discarded range of #buckets
148 * error_bits value
149 * ----------------------------------------------------------------
150 * 0* 0~5 0 [0,63] 64
151 * 1* 6 0 [64,127] 64
152 * 2 7 1 [128,255] 64
153 * 3 8 2 [256,511] 64
154 * 4 9 3 [512,1023] 64
155 * ... ... ... [...,...] ...
156 * 18 23 17 [8838608,+inf]** 64
157 *
158 * * Special cases: when n < (M-1) or when n == (M-1), in both cases,
159 * the value cannot be rounded off. Use all bits of the sample as
160 * index.
161 *
162 * ** If a sample's MSB is greater than 23, it will be counted as 23.
163 */
164
165#define FIO_IO_U_PLAT_BITS 6
166#define FIO_IO_U_PLAT_VAL (1 << FIO_IO_U_PLAT_BITS)
167#define FIO_IO_U_PLAT_GROUP_NR 19
168#define FIO_IO_U_PLAT_NR (FIO_IO_U_PLAT_GROUP_NR * FIO_IO_U_PLAT_VAL)
169#define FIO_IO_U_LIST_MAX_LEN 20 /* The size of the default and user-specified
170 list of percentiles */
171
172#define MAX_PATTERN_SIZE 512
173
174struct thread_stat {
175 char *name;
176 char *verror;
177 int error;
178 int groupid;
179 pid_t pid;
180 char *description;
181 int members;
182
183 struct io_log *slat_log;
184 struct io_log *clat_log;
185 struct io_log *lat_log;
186 struct io_log *bw_log;
187
188 /*
189 * bandwidth and latency stats
190 */
191 struct io_stat clat_stat[2]; /* completion latency */
192 struct io_stat slat_stat[2]; /* submission latency */
193 struct io_stat lat_stat[2]; /* total latency */
194 struct io_stat bw_stat[2]; /* bandwidth stats */
195
196 unsigned long long stat_io_bytes[2];
197 struct timeval stat_sample_time[2];
198
199 /*
200 * fio system usage accounting
201 */
202 struct rusage ru_start;
203 struct rusage ru_end;
204 unsigned long usr_time;
205 unsigned long sys_time;
206 unsigned long ctx;
207 unsigned long minf, majf;
208
209 /*
210 * IO depth and latency stats
211 */
212 unsigned int clat_percentiles;
213 double* percentile_list;
214
215 unsigned int io_u_map[FIO_IO_U_MAP_NR];
216 unsigned int io_u_submit[FIO_IO_U_MAP_NR];
217 unsigned int io_u_complete[FIO_IO_U_MAP_NR];
218 unsigned int io_u_lat_u[FIO_IO_U_LAT_U_NR];
219 unsigned int io_u_lat_m[FIO_IO_U_LAT_M_NR];
220 unsigned int io_u_plat[2][FIO_IO_U_PLAT_NR];
221 unsigned long total_io_u[3];
222 unsigned long short_io_u[3];
223 unsigned long total_submit;
224 unsigned long total_complete;
225
226 unsigned long long io_bytes[2];
227 unsigned long long runtime[2];
228 unsigned long total_run_time;
229
230 /*
231 * IO Error related stats
232 */
233 unsigned continue_on_error;
234 unsigned long total_err_count;
235 int first_error;
236
237 unsigned int kb_base;
238};
239
240struct bssplit {
241 unsigned int bs;
242 unsigned char perc;
243};
244
245struct thread_options {
246 int pad;
247 char *description;
248 char *name;
249 char *directory;
250 char *filename;
251 char *opendir;
252 char *ioengine;
253 enum td_ddir td_ddir;
254 unsigned int rw_seq;
255 unsigned int kb_base;
256 unsigned int ddir_seq_nr;
257 unsigned long ddir_seq_add;
258 unsigned int iodepth;
259 unsigned int iodepth_low;
260 unsigned int iodepth_batch;
261 unsigned int iodepth_batch_complete;
262
263 unsigned long long size;
264 unsigned int size_percent;
265 unsigned int fill_device;
266 unsigned long long file_size_low;
267 unsigned long long file_size_high;
268 unsigned long long start_offset;
269
270 unsigned int bs[2];
271 unsigned int ba[2];
272 unsigned int min_bs[2];
273 unsigned int max_bs[2];
274 struct bssplit *bssplit[2];
275 unsigned int bssplit_nr[2];
276
277 unsigned int nr_files;
278 unsigned int open_files;
279 enum file_lock_mode file_lock_mode;
280 unsigned int lockfile_batch;
281
282 unsigned int odirect;
283 unsigned int invalidate_cache;
284 unsigned int create_serialize;
285 unsigned int create_fsync;
286 unsigned int create_on_open;
287 unsigned int end_fsync;
288 unsigned int pre_read;
289 unsigned int sync_io;
290 unsigned int verify;
291 unsigned int do_verify;
292 unsigned int verifysort;
293 unsigned int verify_interval;
294 unsigned int verify_offset;
295 char verify_pattern[MAX_PATTERN_SIZE];
296 unsigned int verify_pattern_bytes;
297 unsigned int verify_fatal;
298 unsigned int verify_dump;
299 unsigned int verify_async;
300 unsigned long long verify_backlog;
301 unsigned int verify_batch;
302 unsigned int use_thread;
303 unsigned int unlink;
304 unsigned int do_disk_util;
305 unsigned int override_sync;
306 unsigned int rand_repeatable;
307 unsigned int use_os_rand;
308 unsigned int write_lat_log;
309 unsigned int write_bw_log;
310 unsigned int norandommap;
311 unsigned int softrandommap;
312 unsigned int bs_unaligned;
313 unsigned int fsync_on_close;
314
315 unsigned int hugepage_size;
316 unsigned int rw_min_bs;
317 unsigned int thinktime;
318 unsigned int thinktime_spin;
319 unsigned int thinktime_blocks;
320 unsigned int fsync_blocks;
321 unsigned int fdatasync_blocks;
322 unsigned int barrier_blocks;
323 unsigned long long start_delay;
324 unsigned long long timeout;
325 unsigned long long ramp_time;
326 unsigned int overwrite;
327 unsigned int bw_avg_time;
328 unsigned int loops;
329 unsigned long long zone_size;
330 unsigned long long zone_skip;
331 enum fio_memtype mem_type;
332 unsigned int mem_align;
333
334 unsigned int stonewall;
335 unsigned int new_group;
336 unsigned int numjobs;
337 os_cpu_mask_t cpumask;
338 unsigned int cpumask_set;
339 os_cpu_mask_t verify_cpumask;
340 unsigned int verify_cpumask_set;
341 unsigned int iolog;
342 unsigned int rwmixcycle;
343 unsigned int rwmix[2];
344 unsigned int nice;
345 unsigned int file_service_type;
346 unsigned int group_reporting;
347 unsigned int fadvise_hint;
348 enum fio_fallocate_mode fallocate_mode;
349 unsigned int zero_buffers;
350 unsigned int refill_buffers;
351 unsigned int time_based;
352 unsigned int disable_lat;
353 unsigned int disable_clat;
354 unsigned int disable_slat;
355 unsigned int disable_bw;
356 unsigned int gtod_reduce;
357 unsigned int gtod_cpu;
358 unsigned int gtod_offload;
359 enum fio_cs clocksource;
360 unsigned int no_stall;
361 unsigned int trim_percentage;
362 unsigned int trim_batch;
363 unsigned int trim_zero;
364 unsigned long long trim_backlog;
365 unsigned int clat_percentiles;
366 unsigned int overwrite_plist;
367 double percentile_list[FIO_IO_U_LIST_MAX_LEN];
368
369 char *read_iolog_file;
370 char *write_iolog_file;
371 char *bw_log_file;
372 char *lat_log_file;
373 char *replay_redirect;
374
375 /*
376 * Pre-run and post-run shell
377 */
378 char *exec_prerun;
379 char *exec_postrun;
380
381 unsigned int rate[2];
382 unsigned int ratemin[2];
383 unsigned int ratecycle;
384 unsigned int rate_iops[2];
385 unsigned int rate_iops_min[2];
386
387 char *ioscheduler;
388
389 /*
390 * CPU "io" cycle burner
391 */
392 unsigned int cpuload;
393 unsigned int cpucycle;
394
395 /*
396 * I/O Error handling
397 */
398 unsigned int continue_on_error;
399
400 /*
401 * Benchmark profile type
402 */
403 char *profile;
404
405 /*
406 * blkio cgroup support
407 */
408 char *cgroup;
409 unsigned int cgroup_weight;
410 unsigned int cgroup_nodelete;
411
412 unsigned int uid;
413 unsigned int gid;
414
415 unsigned int sync_file_range;
416};
417
418#define FIO_VERROR_SIZE 128
419
420/*
421 * This describes a single thread/process executing a fio job.
422 */
423struct thread_data {
424 struct thread_options o;
425 char verror[FIO_VERROR_SIZE];
426 pthread_t thread;
427 int thread_number;
428 int groupid;
429 struct thread_stat ts;
430 struct fio_file **files;
431 unsigned int files_size;
432 unsigned int files_index;
433 unsigned int nr_open_files;
434 unsigned int nr_done_files;
435 unsigned int nr_normal_files;
436 union {
437 unsigned int next_file;
438 os_random_state_t next_file_state;
439 struct frand_state __next_file_state;
440 };
441 int error;
442 int done;
443 pid_t pid;
444 char *orig_buffer;
445 size_t orig_buffer_size;
446 volatile int terminate;
447 volatile int runstate;
448 unsigned int ioprio;
449 unsigned int ioprio_set;
450 unsigned int last_was_sync;
451 enum fio_ddir last_ddir;
452
453 char *mmapfile;
454 int mmapfd;
455
456 void *iolog_buf;
457 FILE *iolog_f;
458
459 char *sysfs_root;
460
461 unsigned long rand_seeds[7];
462
463 union {
464 os_random_state_t bsrange_state;
465 struct frand_state __bsrange_state;
466 };
467 union {
468 os_random_state_t verify_state;
469 struct frand_state __verify_state;
470 };
471 union {
472 os_random_state_t trim_state;
473 struct frand_state __trim_state;
474 };
475
476 unsigned int verify_batch;
477 unsigned int trim_batch;
478
479 int shm_id;
480
481 /*
482 * IO engine hooks, contains everything needed to submit an io_u
483 * to any of the available IO engines.
484 */
485 struct ioengine_ops *io_ops;
486
487 /*
488 * Current IO depth and list of free and busy io_u's.
489 */
490 unsigned int cur_depth;
491 unsigned int io_u_queued;
492 struct flist_head io_u_freelist;
493 struct flist_head io_u_busylist;
494 struct flist_head io_u_requeues;
495 pthread_mutex_t io_u_lock;
496 pthread_cond_t free_cond;
497
498 /*
499 * async verify offload
500 */
501 struct flist_head verify_list;
502 pthread_t *verify_threads;
503 unsigned int nr_verify_threads;
504 pthread_cond_t verify_cond;
505 int verify_thread_exit;
506
507 /*
508 * Rate state
509 */
510 unsigned long rate_nsec_cycle[2];
511 long rate_pending_usleep[2];
512 unsigned long rate_bytes[2];
513 unsigned long rate_blocks[2];
514 struct timeval lastrate[2];
515
516 unsigned long long total_io_size;
517 unsigned long long fill_device_size;
518
519 unsigned long io_issues[2];
520 unsigned long long io_blocks[2];
521 unsigned long long io_bytes[2];
522 unsigned long long io_skip_bytes;
523 unsigned long long this_io_bytes[2];
524 unsigned long long zone_bytes;
525 struct fio_mutex *mutex;
526
527 /*
528 * State for random io, a bitmap of blocks done vs not done
529 */
530 union {
531 os_random_state_t random_state;
532 struct frand_state __random_state;
533 };
534
535 struct timeval start; /* start of this loop */
536 struct timeval epoch; /* time job was started */
537 struct timeval last_issue;
538 struct timeval tv_cache;
539 unsigned int tv_cache_nr;
540 unsigned int tv_cache_mask;
541 unsigned int ramp_time_over;
542
543 /*
544 * read/write mixed workload state
545 */
546 union {
547 os_random_state_t rwmix_state;
548 struct frand_state __rwmix_state;
549 };
550 unsigned long rwmix_issues;
551 enum fio_ddir rwmix_ddir;
552 unsigned int ddir_seq_nr;
553
554 /*
555 * IO history logs for verification. We use a tree for sorting,
556 * if we are overwriting. Otherwise just use a fifo.
557 */
558 struct rb_root io_hist_tree;
559 struct flist_head io_hist_list;
560 unsigned long io_hist_len;
561
562 /*
563 * For IO replaying
564 */
565 struct flist_head io_log_list;
566
567 /*
568 * For tracking/handling discards
569 */
570 struct flist_head trim_list;
571 unsigned long trim_entries;
572
573 /*
574 * for fileservice, how often to switch to a new file
575 */
576 unsigned int file_service_nr;
577 unsigned int file_service_left;
578 struct fio_file *file_service_file;
579
580 unsigned int sync_file_range_nr;
581
582 /*
583 * For generating file sizes
584 */
585 union {
586 os_random_state_t file_size_state;
587 struct frand_state __file_size_state;
588 };
589
590 /*
591 * Error counts
592 */
593 unsigned int total_err_count;
594 int first_error;
595
596 /*
597 * Can be overloaded by profiles
598 */
599 struct prof_io_ops prof_io_ops;
600 void *prof_data;
601};
602
603/*
604 * when should interactive ETA output be generated
605 */
606enum {
607 FIO_ETA_AUTO,
608 FIO_ETA_ALWAYS,
609 FIO_ETA_NEVER,
610};
611
612#define __td_verror(td, err, msg, func) \
613 do { \
614 if ((td)->error) \
615 break; \
616 int e = (err); \
617 (td)->error = e; \
618 if (!(td)->first_error) \
619 snprintf(td->verror, sizeof(td->verror) - 1, "file:%s:%d, func=%s, error=%s", __FILE__, __LINE__, (func), (msg)); \
620 } while (0)
621
622
623#define td_clear_error(td) \
624 (td)->error = 0;
625#define td_verror(td, err, func) \
626 __td_verror((td), (err), strerror((err)), (func))
627#define td_vmsg(td, err, msg, func) \
628 __td_verror((td), (err), (msg), (func))
629
630extern int exitall_on_terminate;
631extern int thread_number;
632extern int nr_process, nr_thread;
633extern int shm_id;
634extern int groupid;
635extern int terse_output;
636extern int temp_stall_ts;
637extern unsigned long long mlock_size;
638extern unsigned long page_mask, page_size;
639extern int read_only;
640extern int eta_print;
641extern unsigned long done_secs;
642extern char *job_section;
643extern int fio_gtod_offload;
644extern int fio_gtod_cpu;
645extern enum fio_cs fio_clock_source;
646extern int warnings_fatal;
647
648extern struct thread_data *threads;
649
650static inline void fio_ro_check(struct thread_data *td, struct io_u *io_u)
651{
652 assert(!(io_u->ddir == DDIR_WRITE && !td_write(td)));
653}
654
655#define BLOCKS_PER_MAP (8 * sizeof(unsigned long))
656#define TO_MAP_BLOCK(f, b) (b)
657#define RAND_MAP_IDX(f, b) (TO_MAP_BLOCK(f, b) / BLOCKS_PER_MAP)
658#define RAND_MAP_BIT(f, b) (TO_MAP_BLOCK(f, b) & (BLOCKS_PER_MAP - 1))
659
660#define REAL_MAX_JOBS 2048
661
662#define td_non_fatal_error(e) ((e) == EIO || (e) == EILSEQ)
663
664static inline void update_error_count(struct thread_data *td, int err)
665{
666 td->total_err_count++;
667 if (td->total_err_count == 1)
668 td->first_error = err;
669}
670
671static inline int should_fsync(struct thread_data *td)
672{
673 if (td->last_was_sync)
674 return 0;
675 if (td->o.odirect)
676 return 0;
677 if (td_write(td) || td_rw(td) || td->o.override_sync)
678 return 1;
679
680 return 0;
681}
682
683/*
684 * Init/option functions
685 */
686extern int __must_check parse_options(int, char **);
687extern int fio_options_parse(struct thread_data *, char **, int);
688extern void fio_keywords_init(void);
689extern int fio_cmd_option_parse(struct thread_data *, const char *, char *);
690extern void fio_fill_default_options(struct thread_data *);
691extern int fio_show_option_help(const char *);
692extern void fio_options_dup_and_init(struct option *);
693extern void options_mem_dupe(struct thread_data *);
694extern void options_mem_free(struct thread_data *);
695extern void td_fill_rand_seeds(struct thread_data *);
696extern void add_job_opts(const char **);
697extern char *num2str(unsigned long, int, int, int);
698
699#define FIO_GETOPT_JOB 0x89988998
700#define FIO_NR_OPTIONS (FIO_MAX_OPTS + 128)
701
702/*
703 * ETA/status stuff
704 */
705extern void print_thread_status(void);
706extern void print_status_init(int);
707
708/*
709 * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it
710 * will never back again. It may cycle between running/verififying/fsyncing.
711 * Once the thread reaches TD_EXITED, it is just waiting for the core to
712 * reap it.
713 */
714enum {
715 TD_NOT_CREATED = 0,
716 TD_CREATED,
717 TD_INITIALIZED,
718 TD_RAMP,
719 TD_RUNNING,
720 TD_PRE_READING,
721 TD_VERIFYING,
722 TD_FSYNCING,
723 TD_EXITED,
724 TD_REAPED,
725};
726
727extern void td_set_runstate(struct thread_data *, int);
728
729/*
730 * Memory helpers
731 */
732extern int __must_check fio_pin_memory(void);
733extern void fio_unpin_memory(void);
734extern int __must_check allocate_io_mem(struct thread_data *);
735extern void free_io_mem(struct thread_data *);
736
737/*
738 * Reset stats after ramp time completes
739 */
740extern void reset_all_stats(struct thread_data *);
741
742/*
743 * blktrace support
744 */
745#ifdef FIO_HAVE_BLKTRACE
746extern int is_blktrace(const char *);
747extern int load_blktrace(struct thread_data *, const char *);
748#endif
749
750/*
751 * Mark unused variables passed to ops functions as unused, to silence gcc
752 */
753#define fio_unused __attribute((__unused__))
754#define fio_init __attribute__((constructor))
755#define fio_exit __attribute__((destructor))
756
757#define for_each_td(td, i) \
758 for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++)
759#define for_each_file(td, f, i) \
760 if ((td)->files_index) \
761 for ((i) = 0, (f) = (td)->files[0]; \
762 (i) < (td)->o.nr_files && ((f) = (td)->files[i]) != NULL; \
763 (i)++)
764
765#define fio_assert(td, cond) do { \
766 if (!(cond)) { \
767 int *__foo = NULL; \
768 fprintf(stderr, "file:%s:%d, assert %s failed\n", __FILE__, __LINE__, #cond); \
769 td_set_runstate((td), TD_EXITED); \
770 (td)->error = EFAULT; \
771 *__foo = 0; \
772 } \
773} while (0)
774
775static inline int fio_fill_issue_time(struct thread_data *td)
776{
777 if (td->o.read_iolog_file ||
778 !td->o.disable_clat || !td->o.disable_slat || !td->o.disable_bw)
779 return 1;
780
781 return 0;
782}
783
784static inline int __should_check_rate(struct thread_data *td,
785 enum fio_ddir ddir)
786{
787 struct thread_options *o = &td->o;
788
789 /*
790 * If some rate setting was given, we need to check it
791 */
792 if (o->rate[ddir] || o->ratemin[ddir] || o->rate_iops[ddir] ||
793 o->rate_iops_min[ddir])
794 return 1;
795
796 return 0;
797}
798
799static inline int should_check_rate(struct thread_data *td,
800 unsigned long *bytes_done)
801{
802 int ret = 0;
803
804 if (bytes_done[0])
805 ret |= __should_check_rate(td, 0);
806 if (bytes_done[1])
807 ret |= __should_check_rate(td, 1);
808
809 return ret;
810}
811
812static inline int is_power_of_2(unsigned int val)
813{
814 return (val != 0 && ((val & (val - 1)) == 0));
815}
816
817/*
818 * We currently only need to do locking if we have verifier threads
819 * accessing our internal structures too
820 */
821static inline void td_io_u_lock(struct thread_data *td)
822{
823 if (td->o.verify_async)
824 pthread_mutex_lock(&td->io_u_lock);
825}
826
827static inline void td_io_u_unlock(struct thread_data *td)
828{
829 if (td->o.verify_async)
830 pthread_mutex_unlock(&td->io_u_lock);
831}
832
833static inline void td_io_u_free_notify(struct thread_data *td)
834{
835 if (td->o.verify_async)
836 pthread_cond_signal(&td->free_cond);
837}
838
839#endif
fio - Flexible IO Tester