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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#include "server.h"
39
40#ifdef FIO_HAVE_GUASI
41#include <guasi.h>
42#endif
43
44#ifdef FIO_HAVE_SOLARISAIO
45#include <sys/asynch.h>
46#endif
47
48struct group_run_stats {
49 unsigned long long max_run[2], min_run[2];
50 unsigned long long max_bw[2], min_bw[2];
51 unsigned long long io_kb[2];
52 unsigned long long agg[2];
53 unsigned int kb_base;
54};
55
56/*
57 * What type of allocation to use for io buffers
58 */
59enum fio_memtype {
60 MEM_MALLOC = 0, /* ordinary malloc */
61 MEM_SHM, /* use shared memory segments */
62 MEM_SHMHUGE, /* use shared memory segments with huge pages */
63 MEM_MMAP, /* use anonynomous mmap */
64 MEM_MMAPHUGE, /* memory mapped huge file */
65};
66
67/*
68 * offset generator types
69 */
70enum {
71 RW_SEQ_SEQ = 0,
72 RW_SEQ_IDENT,
73};
74
75/*
76 * How many depth levels to log
77 */
78#define FIO_IO_U_MAP_NR 7
79#define FIO_IO_U_LAT_U_NR 10
80#define FIO_IO_U_LAT_M_NR 12
81
82/*
83 * Aggregate clat samples to report percentile(s) of them.
84 *
85 * EXECUTIVE SUMMARY
86 *
87 * FIO_IO_U_PLAT_BITS determines the maximum statistical error on the
88 * value of resulting percentiles. The error will be approximately
89 * 1/2^(FIO_IO_U_PLAT_BITS+1) of the value.
90 *
91 * FIO_IO_U_PLAT_GROUP_NR and FIO_IO_U_PLAT_BITS determine the maximum
92 * range being tracked for latency samples. The maximum value tracked
93 * accurately will be 2^(GROUP_NR + PLAT_BITS -1) microseconds.
94 *
95 * FIO_IO_U_PLAT_GROUP_NR and FIO_IO_U_PLAT_BITS determine the memory
96 * requirement of storing those aggregate counts. The memory used will
97 * be (FIO_IO_U_PLAT_GROUP_NR * 2^FIO_IO_U_PLAT_BITS) * sizeof(int)
98 * bytes.
99 *
100 * FIO_IO_U_PLAT_NR is the total number of buckets.
101 *
102 * DETAILS
103 *
104 * Suppose the clat varies from 0 to 999 (usec), the straightforward
105 * method is to keep an array of (999 + 1) buckets, in which a counter
106 * keeps the count of samples which fall in the bucket, e.g.,
107 * {[0],[1],...,[999]}. However this consumes a huge amount of space,
108 * and can be avoided if an approximation is acceptable.
109 *
110 * One such method is to let the range of the bucket to be greater
111 * than one. This method has low accuracy when the value is small. For
112 * example, let the buckets be {[0,99],[100,199],...,[900,999]}, and
113 * the represented value of each bucket be the mean of the range. Then
114 * a value 0 has an round-off error of 49.5. To improve on this, we
115 * use buckets with non-uniform ranges, while bounding the error of
116 * each bucket within a ratio of the sample value. A simple example
117 * would be when error_bound = 0.005, buckets are {
118 * {[0],[1],...,[99]}, {[100,101],[102,103],...,[198,199]},..,
119 * {[900,909],[910,919]...} }. The total range is partitioned into
120 * groups with different ranges, then buckets with uniform ranges. An
121 * upper bound of the error is (range_of_bucket/2)/value_of_bucket
122 *
123 * For better efficiency, we implement this using base two. We group
124 * samples by their Most Significant Bit (MSB), extract the next M bit
125 * of them as an index within the group, and discard the rest of the
126 * bits.
127 *
128 * E.g., assume a sample 'x' whose MSB is bit n (starting from bit 0),
129 * and use M bit for indexing
130 *
131 * | n | M bits | bit (n-M-1) ... bit 0 |
132 *
133 * Because x is at least 2^n, and bit 0 to bit (n-M-1) is at most
134 * (2^(n-M) - 1), discarding bit 0 to (n-M-1) makes the round-off
135 * error
136 *
137 * 2^(n-M)-1 2^(n-M) 1
138 * e <= --------- <= ------- = ---
139 * 2^n 2^n 2^M
140 *
141 * Furthermore, we use "mean" of the range to represent the bucket,
142 * the error e can be lowered by half to 1 / 2^(M+1). By using M bits
143 * as the index, each group must contains 2^M buckets.
144 *
145 * E.g. Let M (FIO_IO_U_PLAT_BITS) be 6
146 * Error bound is 1/2^(6+1) = 0.0078125 (< 1%)
147 *
148 * Group MSB #discarded range of #buckets
149 * error_bits value
150 * ----------------------------------------------------------------
151 * 0* 0~5 0 [0,63] 64
152 * 1* 6 0 [64,127] 64
153 * 2 7 1 [128,255] 64
154 * 3 8 2 [256,511] 64
155 * 4 9 3 [512,1023] 64
156 * ... ... ... [...,...] ...
157 * 18 23 17 [8838608,+inf]** 64
158 *
159 * * Special cases: when n < (M-1) or when n == (M-1), in both cases,
160 * the value cannot be rounded off. Use all bits of the sample as
161 * index.
162 *
163 * ** If a sample's MSB is greater than 23, it will be counted as 23.
164 */
165
166#define FIO_IO_U_PLAT_BITS 6
167#define FIO_IO_U_PLAT_VAL (1 << FIO_IO_U_PLAT_BITS)
168#define FIO_IO_U_PLAT_GROUP_NR 19
169#define FIO_IO_U_PLAT_NR (FIO_IO_U_PLAT_GROUP_NR * FIO_IO_U_PLAT_VAL)
170#define FIO_IO_U_LIST_MAX_LEN 20 /* The size of the default and user-specified
171 list of percentiles */
172
173#define MAX_PATTERN_SIZE 512
174
175struct thread_stat {
176 char *name;
177 char *verror;
178 int error;
179 int groupid;
180 pid_t pid;
181 char *description;
182 int members;
183
184 struct io_log *slat_log;
185 struct io_log *clat_log;
186 struct io_log *lat_log;
187 struct io_log *bw_log;
188
189 /*
190 * bandwidth and latency stats
191 */
192 struct io_stat clat_stat[2]; /* completion latency */
193 struct io_stat slat_stat[2]; /* submission latency */
194 struct io_stat lat_stat[2]; /* total latency */
195 struct io_stat bw_stat[2]; /* bandwidth stats */
196
197 unsigned long long stat_io_bytes[2];
198 struct timeval stat_sample_time[2];
199
200 /*
201 * fio system usage accounting
202 */
203 struct rusage ru_start;
204 struct rusage ru_end;
205 unsigned long usr_time;
206 unsigned long sys_time;
207 unsigned long ctx;
208 unsigned long minf, majf;
209
210 /*
211 * IO depth and latency stats
212 */
213 unsigned int clat_percentiles;
214 double* percentile_list;
215
216 unsigned int io_u_map[FIO_IO_U_MAP_NR];
217 unsigned int io_u_submit[FIO_IO_U_MAP_NR];
218 unsigned int io_u_complete[FIO_IO_U_MAP_NR];
219 unsigned int io_u_lat_u[FIO_IO_U_LAT_U_NR];
220 unsigned int io_u_lat_m[FIO_IO_U_LAT_M_NR];
221 unsigned int io_u_plat[2][FIO_IO_U_PLAT_NR];
222 unsigned long total_io_u[3];
223 unsigned long short_io_u[3];
224 unsigned long total_submit;
225 unsigned long total_complete;
226
227 unsigned long long io_bytes[2];
228 unsigned long long runtime[2];
229 unsigned long total_run_time;
230
231 /*
232 * IO Error related stats
233 */
234 unsigned continue_on_error;
235 unsigned long total_err_count;
236 int first_error;
237
238 unsigned int kb_base;
239};
240
241struct bssplit {
242 unsigned int bs;
243 unsigned char perc;
244};
245
246struct thread_options {
247 int pad;
248 char *description;
249 char *name;
250 char *directory;
251 char *filename;
252 char *opendir;
253 char *ioengine;
254 enum td_ddir td_ddir;
255 unsigned int rw_seq;
256 unsigned int kb_base;
257 unsigned int ddir_seq_nr;
258 long ddir_seq_add;
259 unsigned int iodepth;
260 unsigned int iodepth_low;
261 unsigned int iodepth_batch;
262 unsigned int iodepth_batch_complete;
263
264 unsigned long long size;
265 unsigned int size_percent;
266 unsigned int fill_device;
267 unsigned long long file_size_low;
268 unsigned long long file_size_high;
269 unsigned long long start_offset;
270
271 unsigned int bs[2];
272 unsigned int ba[2];
273 unsigned int min_bs[2];
274 unsigned int max_bs[2];
275 struct bssplit *bssplit[2];
276 unsigned int bssplit_nr[2];
277
278 unsigned int nr_files;
279 unsigned int open_files;
280 enum file_lock_mode file_lock_mode;
281 unsigned int lockfile_batch;
282
283 unsigned int odirect;
284 unsigned int invalidate_cache;
285 unsigned int create_serialize;
286 unsigned int create_fsync;
287 unsigned int create_on_open;
288 unsigned int end_fsync;
289 unsigned int pre_read;
290 unsigned int sync_io;
291 unsigned int verify;
292 unsigned int do_verify;
293 unsigned int verifysort;
294 unsigned int verify_interval;
295 unsigned int verify_offset;
296 char verify_pattern[MAX_PATTERN_SIZE];
297 unsigned int verify_pattern_bytes;
298 unsigned int verify_fatal;
299 unsigned int verify_dump;
300 unsigned int verify_async;
301 unsigned long long verify_backlog;
302 unsigned int verify_batch;
303 unsigned int use_thread;
304 unsigned int unlink;
305 unsigned int do_disk_util;
306 unsigned int override_sync;
307 unsigned int rand_repeatable;
308 unsigned int use_os_rand;
309 unsigned int write_lat_log;
310 unsigned int write_bw_log;
311 unsigned int norandommap;
312 unsigned int softrandommap;
313 unsigned int bs_unaligned;
314 unsigned int fsync_on_close;
315
316 unsigned int hugepage_size;
317 unsigned int rw_min_bs;
318 unsigned int thinktime;
319 unsigned int thinktime_spin;
320 unsigned int thinktime_blocks;
321 unsigned int fsync_blocks;
322 unsigned int fdatasync_blocks;
323 unsigned int barrier_blocks;
324 unsigned long long start_delay;
325 unsigned long long timeout;
326 unsigned long long ramp_time;
327 unsigned int overwrite;
328 unsigned int bw_avg_time;
329 unsigned int loops;
330 unsigned long long zone_size;
331 unsigned long long zone_skip;
332 enum fio_memtype mem_type;
333 unsigned int mem_align;
334
335 unsigned int stonewall;
336 unsigned int new_group;
337 unsigned int numjobs;
338 os_cpu_mask_t cpumask;
339 unsigned int cpumask_set;
340 os_cpu_mask_t verify_cpumask;
341 unsigned int verify_cpumask_set;
342 unsigned int iolog;
343 unsigned int rwmixcycle;
344 unsigned int rwmix[2];
345 unsigned int nice;
346 unsigned int file_service_type;
347 unsigned int group_reporting;
348 unsigned int fadvise_hint;
349 enum fio_fallocate_mode fallocate_mode;
350 unsigned int zero_buffers;
351 unsigned int refill_buffers;
352 unsigned int scramble_buffers;
353 unsigned int time_based;
354 unsigned int disable_lat;
355 unsigned int disable_clat;
356 unsigned int disable_slat;
357 unsigned int disable_bw;
358 unsigned int gtod_reduce;
359 unsigned int gtod_cpu;
360 unsigned int gtod_offload;
361 enum fio_cs clocksource;
362 unsigned int no_stall;
363 unsigned int trim_percentage;
364 unsigned int trim_batch;
365 unsigned int trim_zero;
366 unsigned long long trim_backlog;
367 unsigned int clat_percentiles;
368 unsigned int overwrite_plist;
369 double percentile_list[FIO_IO_U_LIST_MAX_LEN];
370
371 char *read_iolog_file;
372 char *write_iolog_file;
373 char *bw_log_file;
374 char *lat_log_file;
375 char *replay_redirect;
376
377 /*
378 * Pre-run and post-run shell
379 */
380 char *exec_prerun;
381 char *exec_postrun;
382
383 unsigned int rate[2];
384 unsigned int ratemin[2];
385 unsigned int ratecycle;
386 unsigned int rate_iops[2];
387 unsigned int rate_iops_min[2];
388
389 char *ioscheduler;
390
391 /*
392 * CPU "io" cycle burner
393 */
394 unsigned int cpuload;
395 unsigned int cpucycle;
396
397 /*
398 * I/O Error handling
399 */
400 unsigned int continue_on_error;
401
402 /*
403 * Benchmark profile type
404 */
405 char *profile;
406
407 /*
408 * blkio cgroup support
409 */
410 char *cgroup;
411 unsigned int cgroup_weight;
412 unsigned int cgroup_nodelete;
413
414 unsigned int uid;
415 unsigned int gid;
416
417 unsigned int sync_file_range;
418
419 unsigned int userspace_libaio_reap;
420};
421
422#define FIO_VERROR_SIZE 128
423
424/*
425 * This describes a single thread/process executing a fio job.
426 */
427struct thread_data {
428 struct thread_options o;
429 char verror[FIO_VERROR_SIZE];
430 pthread_t thread;
431 int thread_number;
432 int groupid;
433 struct thread_stat ts;
434 struct fio_file **files;
435 unsigned int files_size;
436 unsigned int files_index;
437 unsigned int nr_open_files;
438 unsigned int nr_done_files;
439 unsigned int nr_normal_files;
440 union {
441 unsigned int next_file;
442 os_random_state_t next_file_state;
443 struct frand_state __next_file_state;
444 };
445 int error;
446 int done;
447 pid_t pid;
448 char *orig_buffer;
449 size_t orig_buffer_size;
450 volatile int terminate;
451 volatile int runstate;
452 unsigned int ioprio;
453 unsigned int ioprio_set;
454 unsigned int last_was_sync;
455 enum fio_ddir last_ddir;
456
457 char *mmapfile;
458 int mmapfd;
459
460 void *iolog_buf;
461 FILE *iolog_f;
462
463 char *sysfs_root;
464
465 unsigned long rand_seeds[8];
466
467 union {
468 os_random_state_t bsrange_state;
469 struct frand_state __bsrange_state;
470 };
471 union {
472 os_random_state_t verify_state;
473 struct frand_state __verify_state;
474 };
475 union {
476 os_random_state_t trim_state;
477 struct frand_state __trim_state;
478 };
479
480 struct frand_state buf_state;
481
482 unsigned int verify_batch;
483 unsigned int trim_batch;
484
485 int shm_id;
486
487 /*
488 * IO engine hooks, contains everything needed to submit an io_u
489 * to any of the available IO engines.
490 */
491 struct ioengine_ops *io_ops;
492
493 /*
494 * Current IO depth and list of free and busy io_u's.
495 */
496 unsigned int cur_depth;
497 unsigned int io_u_queued;
498 struct flist_head io_u_freelist;
499 struct flist_head io_u_busylist;
500 struct flist_head io_u_requeues;
501 pthread_mutex_t io_u_lock;
502 pthread_cond_t free_cond;
503
504 /*
505 * async verify offload
506 */
507 struct flist_head verify_list;
508 pthread_t *verify_threads;
509 unsigned int nr_verify_threads;
510 pthread_cond_t verify_cond;
511 int verify_thread_exit;
512
513 /*
514 * Rate state
515 */
516 unsigned long rate_nsec_cycle[2];
517 long rate_pending_usleep[2];
518 unsigned long rate_bytes[2];
519 unsigned long rate_blocks[2];
520 struct timeval lastrate[2];
521
522 unsigned long long total_io_size;
523 unsigned long long fill_device_size;
524
525 unsigned long io_issues[2];
526 unsigned long long io_blocks[2];
527 unsigned long long io_bytes[2];
528 unsigned long long io_skip_bytes;
529 unsigned long long this_io_bytes[2];
530 unsigned long long zone_bytes;
531 struct fio_mutex *mutex;
532
533 /*
534 * State for random io, a bitmap of blocks done vs not done
535 */
536 union {
537 os_random_state_t random_state;
538 struct frand_state __random_state;
539 };
540
541 struct timeval start; /* start of this loop */
542 struct timeval epoch; /* time job was started */
543 struct timeval last_issue;
544 struct timeval tv_cache;
545 unsigned int tv_cache_nr;
546 unsigned int tv_cache_mask;
547 unsigned int ramp_time_over;
548
549 /*
550 * read/write mixed workload state
551 */
552 union {
553 os_random_state_t rwmix_state;
554 struct frand_state __rwmix_state;
555 };
556 unsigned long rwmix_issues;
557 enum fio_ddir rwmix_ddir;
558 unsigned int ddir_seq_nr;
559
560 /*
561 * IO history logs for verification. We use a tree for sorting,
562 * if we are overwriting. Otherwise just use a fifo.
563 */
564 struct rb_root io_hist_tree;
565 struct flist_head io_hist_list;
566 unsigned long io_hist_len;
567
568 /*
569 * For IO replaying
570 */
571 struct flist_head io_log_list;
572
573 /*
574 * For tracking/handling discards
575 */
576 struct flist_head trim_list;
577 unsigned long trim_entries;
578
579 /*
580 * for fileservice, how often to switch to a new file
581 */
582 unsigned int file_service_nr;
583 unsigned int file_service_left;
584 struct fio_file *file_service_file;
585
586 unsigned int sync_file_range_nr;
587
588 /*
589 * For generating file sizes
590 */
591 union {
592 os_random_state_t file_size_state;
593 struct frand_state __file_size_state;
594 };
595
596 /*
597 * Error counts
598 */
599 unsigned int total_err_count;
600 int first_error;
601
602 /*
603 * Can be overloaded by profiles
604 */
605 struct prof_io_ops prof_io_ops;
606 void *prof_data;
607};
608
609/*
610 * when should interactive ETA output be generated
611 */
612enum {
613 FIO_ETA_AUTO,
614 FIO_ETA_ALWAYS,
615 FIO_ETA_NEVER,
616};
617
618#define __td_verror(td, err, msg, func) \
619 do { \
620 if ((td)->error) \
621 break; \
622 int e = (err); \
623 (td)->error = e; \
624 if (!(td)->first_error) \
625 snprintf(td->verror, sizeof(td->verror) - 1, "file:%s:%d, func=%s, error=%s", __FILE__, __LINE__, (func), (msg)); \
626 } while (0)
627
628
629#define td_clear_error(td) \
630 (td)->error = 0;
631#define td_verror(td, err, func) \
632 __td_verror((td), (err), strerror((err)), (func))
633#define td_vmsg(td, err, msg, func) \
634 __td_verror((td), (err), (msg), (func))
635
636extern int exitall_on_terminate;
637extern int thread_number;
638extern int nr_process, nr_thread;
639extern int shm_id;
640extern int groupid;
641extern int terse_output;
642extern int temp_stall_ts;
643extern unsigned long long mlock_size;
644extern unsigned long page_mask, page_size;
645extern int read_only;
646extern int eta_print;
647extern unsigned long done_secs;
648extern char *job_section;
649extern int fio_gtod_offload;
650extern int fio_gtod_cpu;
651extern enum fio_cs fio_clock_source;
652extern int warnings_fatal;
653extern int terse_version;
654extern int is_backend;
655extern int is_client;
656
657extern struct thread_data *threads;
658
659static inline void fio_ro_check(struct thread_data *td, struct io_u *io_u)
660{
661 assert(!(io_u->ddir == DDIR_WRITE && !td_write(td)));
662}
663
664#define BLOCKS_PER_MAP (8 * sizeof(unsigned long))
665#define TO_MAP_BLOCK(f, b) (b)
666#define RAND_MAP_IDX(f, b) (TO_MAP_BLOCK(f, b) / BLOCKS_PER_MAP)
667#define RAND_MAP_BIT(f, b) (TO_MAP_BLOCK(f, b) & (BLOCKS_PER_MAP - 1))
668
669#define REAL_MAX_JOBS 2048
670
671#define td_non_fatal_error(e) ((e) == EIO || (e) == EILSEQ)
672
673static inline void update_error_count(struct thread_data *td, int err)
674{
675 td->total_err_count++;
676 if (td->total_err_count == 1)
677 td->first_error = err;
678}
679
680static inline int should_fsync(struct thread_data *td)
681{
682 if (td->last_was_sync)
683 return 0;
684 if (td->o.odirect)
685 return 0;
686 if (td_write(td) || td_rw(td) || td->o.override_sync)
687 return 1;
688
689 return 0;
690}
691
692/*
693 * Init/option functions
694 */
695extern int __must_check parse_options(int, char **);
696extern int parse_jobs_ini(char *, int, int);
697extern int exec_run(void);
698extern void reset_fio_state(void);
699extern int fio_options_parse(struct thread_data *, char **, int);
700extern void fio_keywords_init(void);
701extern int fio_cmd_option_parse(struct thread_data *, const char *, char *);
702extern void fio_fill_default_options(struct thread_data *);
703extern int fio_show_option_help(const char *);
704extern void fio_options_dup_and_init(struct option *);
705extern void options_mem_dupe(struct thread_data *);
706extern void options_mem_free(struct thread_data *);
707extern void td_fill_rand_seeds(struct thread_data *);
708extern void add_job_opts(const char **);
709extern char *num2str(unsigned long, int, int, int);
710
711#define FIO_GETOPT_JOB 0x89988998
712#define FIO_NR_OPTIONS (FIO_MAX_OPTS + 128)
713
714/*
715 * ETA/status stuff
716 */
717extern void print_thread_status(void);
718extern void print_status_init(int);
719
720/*
721 * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it
722 * will never back again. It may cycle between running/verififying/fsyncing.
723 * Once the thread reaches TD_EXITED, it is just waiting for the core to
724 * reap it.
725 */
726enum {
727 TD_NOT_CREATED = 0,
728 TD_CREATED,
729 TD_INITIALIZED,
730 TD_RAMP,
731 TD_RUNNING,
732 TD_PRE_READING,
733 TD_VERIFYING,
734 TD_FSYNCING,
735 TD_EXITED,
736 TD_REAPED,
737};
738
739extern void td_set_runstate(struct thread_data *, int);
740
741/*
742 * Memory helpers
743 */
744extern int __must_check fio_pin_memory(void);
745extern void fio_unpin_memory(void);
746extern int __must_check allocate_io_mem(struct thread_data *);
747extern void free_io_mem(struct thread_data *);
748
749/*
750 * Reset stats after ramp time completes
751 */
752extern void reset_all_stats(struct thread_data *);
753
754/*
755 * blktrace support
756 */
757#ifdef FIO_HAVE_BLKTRACE
758extern int is_blktrace(const char *);
759extern int load_blktrace(struct thread_data *, const char *);
760#endif
761
762/*
763 * Mark unused variables passed to ops functions as unused, to silence gcc
764 */
765#define fio_unused __attribute((__unused__))
766#define fio_init __attribute__((constructor))
767#define fio_exit __attribute__((destructor))
768
769#define for_each_td(td, i) \
770 for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++)
771#define for_each_file(td, f, i) \
772 if ((td)->files_index) \
773 for ((i) = 0, (f) = (td)->files[0]; \
774 (i) < (td)->o.nr_files && ((f) = (td)->files[i]) != NULL; \
775 (i)++)
776
777#define fio_assert(td, cond) do { \
778 if (!(cond)) { \
779 int *__foo = NULL; \
780 fprintf(stderr, "file:%s:%d, assert %s failed\n", __FILE__, __LINE__, #cond); \
781 td_set_runstate((td), TD_EXITED); \
782 (td)->error = EFAULT; \
783 *__foo = 0; \
784 } \
785} while (0)
786
787static inline int fio_fill_issue_time(struct thread_data *td)
788{
789 if (td->o.read_iolog_file ||
790 !td->o.disable_clat || !td->o.disable_slat || !td->o.disable_bw)
791 return 1;
792
793 return 0;
794}
795
796static inline int __should_check_rate(struct thread_data *td,
797 enum fio_ddir ddir)
798{
799 struct thread_options *o = &td->o;
800
801 /*
802 * If some rate setting was given, we need to check it
803 */
804 if (o->rate[ddir] || o->ratemin[ddir] || o->rate_iops[ddir] ||
805 o->rate_iops_min[ddir])
806 return 1;
807
808 return 0;
809}
810
811static inline int should_check_rate(struct thread_data *td,
812 unsigned long *bytes_done)
813{
814 int ret = 0;
815
816 if (bytes_done[0])
817 ret |= __should_check_rate(td, 0);
818 if (bytes_done[1])
819 ret |= __should_check_rate(td, 1);
820
821 return ret;
822}
823
824static inline int is_power_of_2(unsigned int val)
825{
826 return (val != 0 && ((val & (val - 1)) == 0));
827}
828
829/*
830 * We currently only need to do locking if we have verifier threads
831 * accessing our internal structures too
832 */
833static inline void td_io_u_lock(struct thread_data *td)
834{
835 if (td->o.verify_async)
836 pthread_mutex_lock(&td->io_u_lock);
837}
838
839static inline void td_io_u_unlock(struct thread_data *td)
840{
841 if (td->o.verify_async)
842 pthread_mutex_unlock(&td->io_u_lock);
843}
844
845static inline void td_io_u_free_notify(struct thread_data *td)
846{
847 if (td->o.verify_async)
848 pthread_cond_signal(&td->free_cond);
849}
850
851#endif
fio - Flexible IO Tester