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posixaio: restart suspend list after we have used aio_suspend()
[fio.git] / fio.h
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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 "gettime.h"
37#include "lib/getopt.h"
38#include "lib/rand.h"
39#include "server.h"
40#include "stat.h"
41#include "flow.h"
42
43#ifdef CONFIG_SOLARISAIO
44#include <sys/asynch.h>
45#endif
46
47#ifdef CONFIG_LIBNUMA
48#include <linux/mempolicy.h>
49#include <numa.h>
50
51/*
52 * "local" is pseudo-policy
53 */
54#define MPOL_LOCAL MPOL_MAX
55#endif
56
57/*
58 * What type of allocation to use for io buffers
59 */
60enum fio_memtype {
61 MEM_MALLOC = 0, /* ordinary malloc */
62 MEM_SHM, /* use shared memory segments */
63 MEM_SHMHUGE, /* use shared memory segments with huge pages */
64 MEM_MMAP, /* use anonynomous mmap */
65 MEM_MMAPHUGE, /* memory mapped huge file */
66};
67
68/*
69 * offset generator types
70 */
71enum {
72 RW_SEQ_SEQ = 0,
73 RW_SEQ_IDENT,
74};
75
76/*
77 * What type of errors to continue on when continue_on_error is used
78 */
79enum error_type_bit {
80 ERROR_TYPE_READ_BIT = 0,
81 ERROR_TYPE_WRITE_BIT = 1,
82 ERROR_TYPE_VERIFY_BIT = 2,
83 ERROR_TYPE_CNT = 3,
84};
85
86enum error_type {
87 ERROR_TYPE_NONE = 0,
88 ERROR_TYPE_READ = 1 << ERROR_TYPE_READ_BIT,
89 ERROR_TYPE_WRITE = 1 << ERROR_TYPE_WRITE_BIT,
90 ERROR_TYPE_VERIFY = 1 << ERROR_TYPE_VERIFY_BIT,
91 ERROR_TYPE_ANY = 0xffff,
92};
93
94struct bssplit {
95 unsigned int bs;
96 unsigned char perc;
97};
98
99struct thread_options {
100 int pad;
101 char *description;
102 char *name;
103 char *directory;
104 char *filename;
105 char *opendir;
106 char *ioengine;
107 enum td_ddir td_ddir;
108 unsigned int rw_seq;
109 unsigned int kb_base;
110 unsigned int ddir_seq_nr;
111 long ddir_seq_add;
112 unsigned int iodepth;
113 unsigned int iodepth_low;
114 unsigned int iodepth_batch;
115 unsigned int iodepth_batch_complete;
116
117 unsigned long long size;
118 unsigned int size_percent;
119 unsigned int fill_device;
120 unsigned long long file_size_low;
121 unsigned long long file_size_high;
122 unsigned long long start_offset;
123
124 unsigned int bs[DDIR_RWDIR_CNT];
125 unsigned int ba[DDIR_RWDIR_CNT];
126 unsigned int min_bs[DDIR_RWDIR_CNT];
127 unsigned int max_bs[DDIR_RWDIR_CNT];
128 struct bssplit *bssplit[DDIR_RWDIR_CNT];
129 unsigned int bssplit_nr[DDIR_RWDIR_CNT];
130
131 int *ignore_error[ERROR_TYPE_CNT];
132 unsigned int ignore_error_nr[ERROR_TYPE_CNT];
133 unsigned int error_dump;
134
135 unsigned int nr_files;
136 unsigned int open_files;
137 enum file_lock_mode file_lock_mode;
138
139 unsigned int odirect;
140 unsigned int invalidate_cache;
141 unsigned int create_serialize;
142 unsigned int create_fsync;
143 unsigned int create_on_open;
144 unsigned int create_only;
145 unsigned int end_fsync;
146 unsigned int pre_read;
147 unsigned int sync_io;
148 unsigned int verify;
149 unsigned int do_verify;
150 unsigned int verifysort;
151 unsigned int verifysort_nr;
152 unsigned int verify_interval;
153 unsigned int verify_offset;
154 char verify_pattern[MAX_PATTERN_SIZE];
155 unsigned int verify_pattern_bytes;
156 unsigned int verify_fatal;
157 unsigned int verify_dump;
158 unsigned int verify_async;
159 unsigned long long verify_backlog;
160 unsigned int verify_batch;
161 unsigned int experimental_verify;
162 unsigned int use_thread;
163 unsigned int unlink;
164 unsigned int do_disk_util;
165 unsigned int override_sync;
166 unsigned int rand_repeatable;
167 unsigned int use_os_rand;
168 unsigned int write_lat_log;
169 unsigned int write_bw_log;
170 unsigned int write_iops_log;
171 unsigned int log_avg_msec;
172 unsigned int norandommap;
173 unsigned int softrandommap;
174 unsigned int bs_unaligned;
175 unsigned int fsync_on_close;
176
177 unsigned int random_distribution;
178 double zipf_theta;
179 double pareto_h;
180
181 unsigned int random_generator;
182
183 unsigned int hugepage_size;
184 unsigned int rw_min_bs;
185 unsigned int thinktime;
186 unsigned int thinktime_spin;
187 unsigned int thinktime_blocks;
188 unsigned int fsync_blocks;
189 unsigned int fdatasync_blocks;
190 unsigned int barrier_blocks;
191 unsigned long long start_delay;
192 unsigned long long timeout;
193 unsigned long long ramp_time;
194 unsigned int overwrite;
195 unsigned int bw_avg_time;
196 unsigned int iops_avg_time;
197 unsigned int loops;
198 unsigned long long zone_range;
199 unsigned long long zone_size;
200 unsigned long long zone_skip;
201 enum fio_memtype mem_type;
202 unsigned int mem_align;
203
204 unsigned int max_latency;
205
206 unsigned int stonewall;
207 unsigned int new_group;
208 unsigned int numjobs;
209 os_cpu_mask_t cpumask;
210 unsigned int cpumask_set;
211 os_cpu_mask_t verify_cpumask;
212 unsigned int verify_cpumask_set;
213#ifdef CONFIG_LIBNUMA
214 struct bitmask *numa_cpunodesmask;
215 unsigned int numa_cpumask_set;
216 unsigned short numa_mem_mode;
217 unsigned int numa_mem_prefer_node;
218 struct bitmask *numa_memnodesmask;
219 unsigned int numa_memmask_set;
220#endif
221 unsigned int iolog;
222 unsigned int rwmixcycle;
223 unsigned int rwmix[2];
224 unsigned int nice;
225 unsigned int file_service_type;
226 unsigned int group_reporting;
227 unsigned int fadvise_hint;
228 enum fio_fallocate_mode fallocate_mode;
229 unsigned int zero_buffers;
230 unsigned int refill_buffers;
231 unsigned int scramble_buffers;
232 unsigned int compress_percentage;
233 unsigned int compress_chunk;
234 unsigned int time_based;
235 unsigned int disable_lat;
236 unsigned int disable_clat;
237 unsigned int disable_slat;
238 unsigned int disable_bw;
239 unsigned int unified_rw_rep;
240 unsigned int gtod_reduce;
241 unsigned int gtod_cpu;
242 unsigned int gtod_offload;
243 enum fio_cs clocksource;
244 unsigned int no_stall;
245 unsigned int trim_percentage;
246 unsigned int trim_batch;
247 unsigned int trim_zero;
248 unsigned long long trim_backlog;
249 unsigned int clat_percentiles;
250 unsigned int percentile_precision; /* digits after decimal for percentiles */
251 fio_fp64_t percentile_list[FIO_IO_U_LIST_MAX_LEN];
252
253 char *read_iolog_file;
254 char *write_iolog_file;
255 char *bw_log_file;
256 char *lat_log_file;
257 char *iops_log_file;
258 char *replay_redirect;
259
260 /*
261 * Pre-run and post-run shell
262 */
263 char *exec_prerun;
264 char *exec_postrun;
265
266 unsigned int rate[DDIR_RWDIR_CNT];
267 unsigned int ratemin[DDIR_RWDIR_CNT];
268 unsigned int ratecycle;
269 unsigned int rate_iops[DDIR_RWDIR_CNT];
270 unsigned int rate_iops_min[DDIR_RWDIR_CNT];
271
272 char *ioscheduler;
273
274 /*
275 * CPU "io" cycle burner
276 */
277 unsigned int cpuload;
278 unsigned int cpucycle;
279
280 /*
281 * I/O Error handling
282 */
283 enum error_type continue_on_error;
284
285 /*
286 * Benchmark profile type
287 */
288 char *profile;
289
290 /*
291 * blkio cgroup support
292 */
293 char *cgroup;
294 unsigned int cgroup_weight;
295 unsigned int cgroup_nodelete;
296
297 unsigned int uid;
298 unsigned int gid;
299
300 int flow_id;
301 int flow;
302 int flow_watermark;
303 unsigned int flow_sleep;
304
305 unsigned long long offset_increment;
306
307 unsigned int sync_file_range;
308};
309
310enum {
311 TD_F_VER_BACKLOG = 1,
312 TD_F_TRIM_BACKLOG = 2,
313 TD_F_READ_IOLOG = 4,
314 TD_F_REFILL_BUFFERS = 8,
315 TD_F_SCRAMBLE_BUFFERS = 16,
316 TD_F_VER_NONE = 32,
317 TD_F_PROFILE_OPS = 64,
318};
319
320enum {
321 FIO_RAND_BS_OFF = 0,
322 FIO_RAND_VER_OFF,
323 FIO_RAND_MIX_OFF,
324 FIO_RAND_FILE_OFF,
325 FIO_RAND_BLOCK_OFF,
326 FIO_RAND_FILE_SIZE_OFF,
327 FIO_RAND_TRIM_OFF,
328 FIO_RAND_BUF_OFF,
329 FIO_RAND_NR_OFFS,
330};
331
332/*
333 * This describes a single thread/process executing a fio job.
334 */
335struct thread_data {
336 struct thread_options o;
337 unsigned long flags;
338 void *eo;
339 char verror[FIO_VERROR_SIZE];
340 pthread_t thread;
341 int thread_number;
342 int groupid;
343 struct thread_stat ts;
344
345 struct io_log *slat_log;
346 struct io_log *clat_log;
347 struct io_log *lat_log;
348 struct io_log *bw_log;
349 struct io_log *iops_log;
350
351 uint64_t stat_io_bytes[DDIR_RWDIR_CNT];
352 struct timeval bw_sample_time;
353
354 uint64_t stat_io_blocks[DDIR_RWDIR_CNT];
355 struct timeval iops_sample_time;
356
357 struct rusage ru_start;
358 struct rusage ru_end;
359
360 struct fio_file **files;
361 unsigned char *file_locks;
362 unsigned int files_size;
363 unsigned int files_index;
364 unsigned int nr_open_files;
365 unsigned int nr_done_files;
366 unsigned int nr_normal_files;
367 union {
368 unsigned int next_file;
369 os_random_state_t next_file_state;
370 struct frand_state __next_file_state;
371 };
372 int error;
373 int sig;
374 int done;
375 pid_t pid;
376 char *orig_buffer;
377 size_t orig_buffer_size;
378 volatile int terminate;
379 volatile int runstate;
380 unsigned int ioprio;
381 unsigned int ioprio_set;
382 unsigned int last_was_sync;
383 enum fio_ddir last_ddir;
384
385 char *mmapfile;
386 int mmapfd;
387
388 void *iolog_buf;
389 FILE *iolog_f;
390
391 char *sysfs_root;
392
393 unsigned long rand_seeds[FIO_RAND_NR_OFFS];
394
395 union {
396 os_random_state_t bsrange_state;
397 struct frand_state __bsrange_state;
398 };
399 union {
400 os_random_state_t verify_state;
401 struct frand_state __verify_state;
402 };
403 union {
404 os_random_state_t trim_state;
405 struct frand_state __trim_state;
406 };
407
408 struct frand_state buf_state;
409
410 unsigned int verify_batch;
411 unsigned int trim_batch;
412
413 int shm_id;
414
415 /*
416 * IO engine hooks, contains everything needed to submit an io_u
417 * to any of the available IO engines.
418 */
419 struct ioengine_ops *io_ops;
420
421 /*
422 * Queue depth of io_u's that fio MIGHT do
423 */
424 unsigned int cur_depth;
425
426 /*
427 * io_u's about to be committed
428 */
429 unsigned int io_u_queued;
430
431 /*
432 * io_u's submitted but not completed yet
433 */
434 unsigned int io_u_in_flight;
435
436 /*
437 * List of free and busy io_u's
438 */
439 struct flist_head io_u_freelist;
440 struct flist_head io_u_busylist;
441 struct flist_head io_u_requeues;
442 pthread_mutex_t io_u_lock;
443 pthread_cond_t free_cond;
444
445 /*
446 * async verify offload
447 */
448 struct flist_head verify_list;
449 pthread_t *verify_threads;
450 unsigned int nr_verify_threads;
451 pthread_cond_t verify_cond;
452 int verify_thread_exit;
453
454 /*
455 * Rate state
456 */
457 uint64_t rate_bps[DDIR_RWDIR_CNT];
458 long rate_pending_usleep[DDIR_RWDIR_CNT];
459 unsigned long rate_bytes[DDIR_RWDIR_CNT];
460 unsigned long rate_blocks[DDIR_RWDIR_CNT];
461 struct timeval lastrate[DDIR_RWDIR_CNT];
462
463 uint64_t total_io_size;
464 uint64_t fill_device_size;
465
466 unsigned long io_issues[DDIR_RWDIR_CNT];
467 uint64_t io_blocks[DDIR_RWDIR_CNT];
468 uint64_t this_io_blocks[DDIR_RWDIR_CNT];
469 uint64_t io_bytes[DDIR_RWDIR_CNT];
470 uint64_t io_skip_bytes;
471 uint64_t this_io_bytes[DDIR_RWDIR_CNT];
472 uint64_t zone_bytes;
473 struct fio_mutex *mutex;
474
475 /*
476 * State for random io, a bitmap of blocks done vs not done
477 */
478 union {
479 os_random_state_t random_state;
480 struct frand_state __random_state;
481 };
482
483 struct timeval start; /* start of this loop */
484 struct timeval epoch; /* time job was started */
485 struct timeval last_issue;
486 struct timeval tv_cache;
487 unsigned int tv_cache_nr;
488 unsigned int tv_cache_mask;
489 unsigned int ramp_time_over;
490
491 /*
492 * read/write mixed workload state
493 */
494 union {
495 os_random_state_t rwmix_state;
496 struct frand_state __rwmix_state;
497 };
498 unsigned long rwmix_issues;
499 enum fio_ddir rwmix_ddir;
500 unsigned int ddir_seq_nr;
501
502 /*
503 * IO history logs for verification. We use a tree for sorting,
504 * if we are overwriting. Otherwise just use a fifo.
505 */
506 struct rb_root io_hist_tree;
507 struct flist_head io_hist_list;
508 unsigned long io_hist_len;
509
510 /*
511 * For IO replaying
512 */
513 struct flist_head io_log_list;
514
515 /*
516 * For tracking/handling discards
517 */
518 struct flist_head trim_list;
519 unsigned long trim_entries;
520
521 struct flist_head next_rand_list;
522
523 /*
524 * for fileservice, how often to switch to a new file
525 */
526 unsigned int file_service_nr;
527 unsigned int file_service_left;
528 struct fio_file *file_service_file;
529
530 unsigned int sync_file_range_nr;
531
532 /*
533 * For generating file sizes
534 */
535 union {
536 os_random_state_t file_size_state;
537 struct frand_state __file_size_state;
538 };
539
540 /*
541 * Error counts
542 */
543 unsigned int total_err_count;
544 int first_error;
545
546 struct fio_flow *flow;
547
548 /*
549 * Can be overloaded by profiles
550 */
551 struct prof_io_ops prof_io_ops;
552 void *prof_data;
553};
554
555/*
556 * when should interactive ETA output be generated
557 */
558enum {
559 FIO_ETA_AUTO,
560 FIO_ETA_ALWAYS,
561 FIO_ETA_NEVER,
562};
563
564#define __td_verror(td, err, msg, func) \
565 do { \
566 if ((td)->error) \
567 break; \
568 int e = (err); \
569 (td)->error = e; \
570 if (!(td)->first_error) \
571 snprintf(td->verror, sizeof(td->verror), "file:%s:%d, func=%s, error=%s", __FILE__, __LINE__, (func), (msg)); \
572 } while (0)
573
574
575#define td_clear_error(td) \
576 (td)->error = 0;
577#define td_verror(td, err, func) \
578 __td_verror((td), (err), strerror((err)), (func))
579#define td_vmsg(td, err, msg, func) \
580 __td_verror((td), (err), (msg), (func))
581
582#define __fio_stringify_1(x) #x
583#define __fio_stringify(x) __fio_stringify_1(x)
584
585extern int exitall_on_terminate;
586extern unsigned int thread_number;
587extern unsigned int stat_number;
588extern unsigned int nr_process, nr_thread;
589extern int shm_id;
590extern int groupid;
591extern int output_format;
592extern int temp_stall_ts;
593extern unsigned long long mlock_size;
594extern uintptr_t page_mask, page_size;
595extern int read_only;
596extern int eta_print;
597extern int eta_new_line;
598extern unsigned long done_secs;
599extern char *job_section;
600extern int fio_gtod_offload;
601extern int fio_gtod_cpu;
602extern enum fio_cs fio_clock_source;
603extern int fio_clock_source_set;
604extern int warnings_fatal;
605extern int terse_version;
606extern int is_backend;
607extern int nr_clients;
608extern int log_syslog;
609extern const char fio_version_string[];
610
611extern struct thread_data *threads;
612
613static inline void fio_ro_check(struct thread_data *td, struct io_u *io_u)
614{
615 assert(!(io_u->ddir == DDIR_WRITE && !td_write(td)));
616}
617
618#define REAL_MAX_JOBS 2048
619
620static inline enum error_type_bit td_error_type(enum fio_ddir ddir, int err)
621{
622 if (err == EILSEQ)
623 return ERROR_TYPE_VERIFY_BIT;
624 if (ddir == DDIR_READ)
625 return ERROR_TYPE_READ_BIT;
626 return ERROR_TYPE_WRITE_BIT;
627}
628
629static int __NON_FATAL_ERR[] = {EIO, EILSEQ};
630static inline int td_non_fatal_error(struct thread_data *td,
631 enum error_type_bit etype, int err)
632{
633 int i;
634 if (!td->o.ignore_error[etype]) {
635 td->o.ignore_error[etype] = __NON_FATAL_ERR;
636 td->o.ignore_error_nr[etype] = sizeof(__NON_FATAL_ERR)
637 / sizeof(int);
638 }
639
640 if (!(td->o.continue_on_error & (1 << etype)))
641 return 0;
642 for (i = 0; i < td->o.ignore_error_nr[etype]; i++)
643 if (td->o.ignore_error[etype][i] == err)
644 return 1;
645 return 0;
646}
647
648static inline void update_error_count(struct thread_data *td, int err)
649{
650 td->total_err_count++;
651 if (td->total_err_count == 1)
652 td->first_error = err;
653}
654
655static inline int should_fsync(struct thread_data *td)
656{
657 if (td->last_was_sync)
658 return 0;
659 if (td_write(td) || td_rw(td) || td->o.override_sync)
660 return 1;
661
662 return 0;
663}
664
665/*
666 * Init/option functions
667 */
668extern int __must_check parse_options(int, char **);
669extern int parse_jobs_ini(char *, int, int);
670extern int parse_cmd_line(int, char **);
671extern int fio_backend(void);
672extern void reset_fio_state(void);
673extern void clear_io_state(struct thread_data *);
674extern int fio_options_parse(struct thread_data *, char **, int);
675extern void fio_keywords_init(void);
676extern int fio_cmd_option_parse(struct thread_data *, const char *, char *);
677extern int fio_cmd_ioengine_option_parse(struct thread_data *, const char *, char *);
678extern void fio_fill_default_options(struct thread_data *);
679extern int fio_show_option_help(const char *);
680extern void fio_options_set_ioengine_opts(struct option *long_options, struct thread_data *td);
681extern void fio_options_dup_and_init(struct option *);
682extern void fio_options_mem_dupe(struct thread_data *);
683extern void options_mem_dupe(void *data, struct fio_option *options);
684extern void td_fill_rand_seeds(struct thread_data *);
685extern void add_job_opts(const char **);
686extern char *num2str(unsigned long, int, int, int);
687extern int ioengine_load(struct thread_data *);
688
689#define FIO_GETOPT_JOB 0x89000000
690#define FIO_GETOPT_IOENGINE 0x98000000
691#define FIO_NR_OPTIONS (FIO_MAX_OPTS + 128)
692
693/*
694 * ETA/status stuff
695 */
696extern void print_thread_status(void);
697extern void print_status_init(int);
698
699/*
700 * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it
701 * will never back again. It may cycle between running/verififying/fsyncing.
702 * Once the thread reaches TD_EXITED, it is just waiting for the core to
703 * reap it.
704 */
705enum {
706 TD_NOT_CREATED = 0,
707 TD_CREATED,
708 TD_INITIALIZED,
709 TD_RAMP,
710 TD_SETTING_UP,
711 TD_RUNNING,
712 TD_PRE_READING,
713 TD_VERIFYING,
714 TD_FSYNCING,
715 TD_EXITED,
716 TD_REAPED,
717};
718
719extern void td_set_runstate(struct thread_data *, int);
720#define TERMINATE_ALL (-1)
721extern void fio_terminate_threads(int);
722
723/*
724 * Memory helpers
725 */
726extern int __must_check fio_pin_memory(void);
727extern void fio_unpin_memory(void);
728extern int __must_check allocate_io_mem(struct thread_data *);
729extern void free_io_mem(struct thread_data *);
730
731/*
732 * Reset stats after ramp time completes
733 */
734extern void reset_all_stats(struct thread_data *);
735
736/*
737 * blktrace support
738 */
739#ifdef FIO_HAVE_BLKTRACE
740extern int is_blktrace(const char *);
741extern int load_blktrace(struct thread_data *, const char *);
742#endif
743
744/*
745 * Mark unused variables passed to ops functions as unused, to silence gcc
746 */
747#define fio_unused __attribute((__unused__))
748#define fio_init __attribute__((constructor))
749#define fio_exit __attribute__((destructor))
750
751#define for_each_td(td, i) \
752 for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++)
753#define for_each_file(td, f, i) \
754 if ((td)->files_index) \
755 for ((i) = 0, (f) = (td)->files[0]; \
756 (i) < (td)->o.nr_files && ((f) = (td)->files[i]) != NULL; \
757 (i)++)
758
759#define fio_assert(td, cond) do { \
760 if (!(cond)) { \
761 int *__foo = NULL; \
762 fprintf(stderr, "file:%s:%d, assert %s failed\n", __FILE__, __LINE__, #cond); \
763 td_set_runstate((td), TD_EXITED); \
764 (td)->error = EFAULT; \
765 *__foo = 0; \
766 } \
767} while (0)
768
769static inline int fio_fill_issue_time(struct thread_data *td)
770{
771 if (td->o.read_iolog_file ||
772 !td->o.disable_clat || !td->o.disable_slat || !td->o.disable_bw)
773 return 1;
774
775 return 0;
776}
777
778static inline int __should_check_rate(struct thread_data *td,
779 enum fio_ddir ddir)
780{
781 struct thread_options *o = &td->o;
782
783 /*
784 * If some rate setting was given, we need to check it
785 */
786 if (o->rate[ddir] || o->ratemin[ddir] || o->rate_iops[ddir] ||
787 o->rate_iops_min[ddir])
788 return 1;
789
790 return 0;
791}
792
793static inline int should_check_rate(struct thread_data *td,
794 uint64_t *bytes_done)
795{
796 int ret = 0;
797
798 if (bytes_done[DDIR_READ])
799 ret |= __should_check_rate(td, DDIR_READ);
800 if (bytes_done[DDIR_WRITE])
801 ret |= __should_check_rate(td, DDIR_WRITE);
802 if (bytes_done[DDIR_TRIM])
803 ret |= __should_check_rate(td, DDIR_TRIM);
804
805 return ret;
806}
807
808static inline int is_power_of_2(unsigned int val)
809{
810 return (val != 0 && ((val & (val - 1)) == 0));
811}
812
813/*
814 * We currently only need to do locking if we have verifier threads
815 * accessing our internal structures too
816 */
817static inline void td_io_u_lock(struct thread_data *td)
818{
819 if (td->o.verify_async)
820 pthread_mutex_lock(&td->io_u_lock);
821}
822
823static inline void td_io_u_unlock(struct thread_data *td)
824{
825 if (td->o.verify_async)
826 pthread_mutex_unlock(&td->io_u_lock);
827}
828
829static inline void td_io_u_free_notify(struct thread_data *td)
830{
831 if (td->o.verify_async)
832 pthread_cond_signal(&td->free_cond);
833}
834
835extern const char *fio_get_arch_string(int);
836extern const char *fio_get_os_string(int);
837
838enum {
839 FIO_OUTPUT_TERSE = 0,
840 FIO_OUTPUT_JSON,
841 FIO_OUTPUT_NORMAL,
842};
843
844enum {
845 FIO_RAND_DIST_RANDOM = 0,
846 FIO_RAND_DIST_ZIPF,
847 FIO_RAND_DIST_PARETO,
848};
849
850enum {
851 FIO_RAND_GEN_TAUSWORTHE = 0,
852 FIO_RAND_GEN_LFSR,
853};
854
855#endif
fio - Flexible IO Tester