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Fix percentile_list option
[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 unsigned int lockfile_batch;
139
140 unsigned int odirect;
141 unsigned int invalidate_cache;
142 unsigned int create_serialize;
143 unsigned int create_fsync;
144 unsigned int create_on_open;
145 unsigned int create_only;
146 unsigned int end_fsync;
147 unsigned int pre_read;
148 unsigned int sync_io;
149 unsigned int verify;
150 unsigned int do_verify;
151 unsigned int verifysort;
152 unsigned int verifysort_nr;
153 unsigned int verify_interval;
154 unsigned int verify_offset;
155 char verify_pattern[MAX_PATTERN_SIZE];
156 unsigned int verify_pattern_bytes;
157 unsigned int verify_fatal;
158 unsigned int verify_dump;
159 unsigned int verify_async;
160 unsigned long long verify_backlog;
161 unsigned int verify_batch;
162 unsigned int experimental_verify;
163 unsigned int use_thread;
164 unsigned int unlink;
165 unsigned int do_disk_util;
166 unsigned int override_sync;
167 unsigned int rand_repeatable;
168 unsigned int use_os_rand;
169 unsigned int write_lat_log;
170 unsigned int write_bw_log;
171 unsigned int write_iops_log;
172 unsigned int log_avg_msec;
173 unsigned int norandommap;
174 unsigned int softrandommap;
175 unsigned int bs_unaligned;
176 unsigned int fsync_on_close;
177
178 unsigned int random_distribution;
179 double zipf_theta;
180 double pareto_h;
181
182 unsigned int random_generator;
183
184 unsigned int hugepage_size;
185 unsigned int rw_min_bs;
186 unsigned int thinktime;
187 unsigned int thinktime_spin;
188 unsigned int thinktime_blocks;
189 unsigned int fsync_blocks;
190 unsigned int fdatasync_blocks;
191 unsigned int barrier_blocks;
192 unsigned long long start_delay;
193 unsigned long long timeout;
194 unsigned long long ramp_time;
195 unsigned int overwrite;
196 unsigned int bw_avg_time;
197 unsigned int iops_avg_time;
198 unsigned int loops;
199 unsigned long long zone_range;
200 unsigned long long zone_size;
201 unsigned long long zone_skip;
202 enum fio_memtype mem_type;
203 unsigned int mem_align;
204
205 unsigned int max_latency;
206
207 unsigned int stonewall;
208 unsigned int new_group;
209 unsigned int numjobs;
210 os_cpu_mask_t cpumask;
211 unsigned int cpumask_set;
212 os_cpu_mask_t verify_cpumask;
213 unsigned int verify_cpumask_set;
214#ifdef CONFIG_LIBNUMA
215 struct bitmask *numa_cpunodesmask;
216 unsigned int numa_cpumask_set;
217 unsigned short numa_mem_mode;
218 unsigned int numa_mem_prefer_node;
219 struct bitmask *numa_memnodesmask;
220 unsigned int numa_memmask_set;
221#endif
222 unsigned int iolog;
223 unsigned int rwmixcycle;
224 unsigned int rwmix[2];
225 unsigned int nice;
226 unsigned int file_service_type;
227 unsigned int group_reporting;
228 unsigned int fadvise_hint;
229 enum fio_fallocate_mode fallocate_mode;
230 unsigned int zero_buffers;
231 unsigned int refill_buffers;
232 unsigned int scramble_buffers;
233 unsigned int compress_percentage;
234 unsigned int compress_chunk;
235 unsigned int time_based;
236 unsigned int disable_lat;
237 unsigned int disable_clat;
238 unsigned int disable_slat;
239 unsigned int disable_bw;
240 unsigned int unified_rw_rep;
241 unsigned int gtod_reduce;
242 unsigned int gtod_cpu;
243 unsigned int gtod_offload;
244 enum fio_cs clocksource;
245 unsigned int no_stall;
246 unsigned int trim_percentage;
247 unsigned int trim_batch;
248 unsigned int trim_zero;
249 unsigned long long trim_backlog;
250 unsigned int clat_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 int files_size;
362 unsigned int files_index;
363 unsigned int nr_open_files;
364 unsigned int nr_done_files;
365 unsigned int nr_normal_files;
366 union {
367 unsigned int next_file;
368 os_random_state_t next_file_state;
369 struct frand_state __next_file_state;
370 };
371 int error;
372 int sig;
373 int done;
374 pid_t pid;
375 char *orig_buffer;
376 size_t orig_buffer_size;
377 volatile int terminate;
378 volatile int runstate;
379 unsigned int ioprio;
380 unsigned int ioprio_set;
381 unsigned int last_was_sync;
382 enum fio_ddir last_ddir;
383
384 char *mmapfile;
385 int mmapfd;
386
387 void *iolog_buf;
388 FILE *iolog_f;
389
390 char *sysfs_root;
391
392 unsigned long rand_seeds[FIO_RAND_NR_OFFS];
393
394 union {
395 os_random_state_t bsrange_state;
396 struct frand_state __bsrange_state;
397 };
398 union {
399 os_random_state_t verify_state;
400 struct frand_state __verify_state;
401 };
402 union {
403 os_random_state_t trim_state;
404 struct frand_state __trim_state;
405 };
406
407 struct frand_state buf_state;
408
409 unsigned int verify_batch;
410 unsigned int trim_batch;
411
412 int shm_id;
413
414 /*
415 * IO engine hooks, contains everything needed to submit an io_u
416 * to any of the available IO engines.
417 */
418 struct ioengine_ops *io_ops;
419
420 /*
421 * Queue depth of io_u's that fio MIGHT do
422 */
423 unsigned int cur_depth;
424
425 /*
426 * io_u's about to be committed
427 */
428 unsigned int io_u_queued;
429
430 /*
431 * io_u's submitted but not completed yet
432 */
433 unsigned int io_u_in_flight;
434
435 /*
436 * List of free and busy io_u's
437 */
438 struct flist_head io_u_freelist;
439 struct flist_head io_u_busylist;
440 struct flist_head io_u_requeues;
441 pthread_mutex_t io_u_lock;
442 pthread_cond_t free_cond;
443
444 /*
445 * async verify offload
446 */
447 struct flist_head verify_list;
448 pthread_t *verify_threads;
449 unsigned int nr_verify_threads;
450 pthread_cond_t verify_cond;
451 int verify_thread_exit;
452
453 /*
454 * Rate state
455 */
456 unsigned long long rate_bps[DDIR_RWDIR_CNT];
457 long rate_pending_usleep[DDIR_RWDIR_CNT];
458 unsigned long rate_bytes[DDIR_RWDIR_CNT];
459 unsigned long rate_blocks[DDIR_RWDIR_CNT];
460 struct timeval lastrate[DDIR_RWDIR_CNT];
461
462 unsigned long long total_io_size;
463 unsigned long long fill_device_size;
464
465 unsigned long io_issues[DDIR_RWDIR_CNT];
466 unsigned long long io_blocks[DDIR_RWDIR_CNT];
467 unsigned long long this_io_blocks[DDIR_RWDIR_CNT];
468 unsigned long long io_bytes[DDIR_RWDIR_CNT];
469 unsigned long long io_skip_bytes;
470 unsigned long long this_io_bytes[DDIR_RWDIR_CNT];
471 unsigned long long zone_bytes;
472 struct fio_mutex *mutex;
473
474 /*
475 * State for random io, a bitmap of blocks done vs not done
476 */
477 union {
478 os_random_state_t random_state;
479 struct frand_state __random_state;
480 };
481
482 struct timeval start; /* start of this loop */
483 struct timeval epoch; /* time job was started */
484 struct timeval last_issue;
485 struct timeval tv_cache;
486 unsigned int tv_cache_nr;
487 unsigned int tv_cache_mask;
488 unsigned int ramp_time_over;
489
490 /*
491 * read/write mixed workload state
492 */
493 union {
494 os_random_state_t rwmix_state;
495 struct frand_state __rwmix_state;
496 };
497 unsigned long rwmix_issues;
498 enum fio_ddir rwmix_ddir;
499 unsigned int ddir_seq_nr;
500
501 /*
502 * IO history logs for verification. We use a tree for sorting,
503 * if we are overwriting. Otherwise just use a fifo.
504 */
505 struct rb_root io_hist_tree;
506 struct flist_head io_hist_list;
507 unsigned long io_hist_len;
508
509 /*
510 * For IO replaying
511 */
512 struct flist_head io_log_list;
513
514 /*
515 * For tracking/handling discards
516 */
517 struct flist_head trim_list;
518 unsigned long trim_entries;
519
520 struct flist_head next_rand_list;
521
522 /*
523 * for fileservice, how often to switch to a new file
524 */
525 unsigned int file_service_nr;
526 unsigned int file_service_left;
527 struct fio_file *file_service_file;
528
529 unsigned int sync_file_range_nr;
530
531 /*
532 * For generating file sizes
533 */
534 union {
535 os_random_state_t file_size_state;
536 struct frand_state __file_size_state;
537 };
538
539 /*
540 * Error counts
541 */
542 unsigned int total_err_count;
543 int first_error;
544
545 struct fio_flow *flow;
546
547 /*
548 * Can be overloaded by profiles
549 */
550 struct prof_io_ops prof_io_ops;
551 void *prof_data;
552};
553
554/*
555 * when should interactive ETA output be generated
556 */
557enum {
558 FIO_ETA_AUTO,
559 FIO_ETA_ALWAYS,
560 FIO_ETA_NEVER,
561};
562
563#define __td_verror(td, err, msg, func) \
564 do { \
565 if ((td)->error) \
566 break; \
567 int e = (err); \
568 (td)->error = e; \
569 if (!(td)->first_error) \
570 snprintf(td->verror, sizeof(td->verror), "file:%s:%d, func=%s, error=%s", __FILE__, __LINE__, (func), (msg)); \
571 } while (0)
572
573
574#define td_clear_error(td) \
575 (td)->error = 0;
576#define td_verror(td, err, func) \
577 __td_verror((td), (err), strerror((err)), (func))
578#define td_vmsg(td, err, msg, func) \
579 __td_verror((td), (err), (msg), (func))
580
581#define __fio_stringify_1(x) #x
582#define __fio_stringify(x) __fio_stringify_1(x)
583
584extern int exitall_on_terminate;
585extern unsigned int thread_number;
586extern unsigned int stat_number;
587extern unsigned int nr_process, nr_thread;
588extern int shm_id;
589extern int groupid;
590extern int output_format;
591extern int temp_stall_ts;
592extern unsigned long long mlock_size;
593extern uintptr_t page_mask, page_size;
594extern int read_only;
595extern int eta_print;
596extern unsigned long done_secs;
597extern char *job_section;
598extern int fio_gtod_offload;
599extern int fio_gtod_cpu;
600extern enum fio_cs fio_clock_source;
601extern int fio_clock_source_set;
602extern int warnings_fatal;
603extern int terse_version;
604extern int is_backend;
605extern int nr_clients;
606extern int log_syslog;
607extern const char fio_version_string[];
608
609extern struct thread_data *threads;
610
611static inline void fio_ro_check(struct thread_data *td, struct io_u *io_u)
612{
613 assert(!(io_u->ddir == DDIR_WRITE && !td_write(td)));
614}
615
616#define REAL_MAX_JOBS 2048
617
618static inline enum error_type_bit td_error_type(enum fio_ddir ddir, int err)
619{
620 if (err == EILSEQ)
621 return ERROR_TYPE_VERIFY_BIT;
622 if (ddir == DDIR_READ)
623 return ERROR_TYPE_READ_BIT;
624 return ERROR_TYPE_WRITE_BIT;
625}
626
627static int __NON_FATAL_ERR[] = {EIO, EILSEQ};
628static inline int td_non_fatal_error(struct thread_data *td,
629 enum error_type_bit etype, int err)
630{
631 int i;
632 if (!td->o.ignore_error[etype]) {
633 td->o.ignore_error[etype] = __NON_FATAL_ERR;
634 td->o.ignore_error_nr[etype] = sizeof(__NON_FATAL_ERR)
635 / sizeof(int);
636 }
637
638 if (!(td->o.continue_on_error & (1 << etype)))
639 return 0;
640 for (i = 0; i < td->o.ignore_error_nr[etype]; i++)
641 if (td->o.ignore_error[etype][i] == err)
642 return 1;
643 return 0;
644}
645
646static inline void update_error_count(struct thread_data *td, int err)
647{
648 td->total_err_count++;
649 if (td->total_err_count == 1)
650 td->first_error = err;
651}
652
653static inline int should_fsync(struct thread_data *td)
654{
655 if (td->last_was_sync)
656 return 0;
657 if (td_write(td) || td_rw(td) || td->o.override_sync)
658 return 1;
659
660 return 0;
661}
662
663/*
664 * Init/option functions
665 */
666extern int __must_check parse_options(int, char **);
667extern int parse_jobs_ini(char *, int, int);
668extern int parse_cmd_line(int, char **);
669extern int fio_backend(void);
670extern void reset_fio_state(void);
671extern void clear_io_state(struct thread_data *);
672extern int fio_options_parse(struct thread_data *, char **, int);
673extern void fio_keywords_init(void);
674extern int fio_cmd_option_parse(struct thread_data *, const char *, char *);
675extern int fio_cmd_ioengine_option_parse(struct thread_data *, const char *, char *);
676extern void fio_fill_default_options(struct thread_data *);
677extern int fio_show_option_help(const char *);
678extern void fio_options_set_ioengine_opts(struct option *long_options, struct thread_data *td);
679extern void fio_options_dup_and_init(struct option *);
680extern void fio_options_mem_dupe(struct thread_data *);
681extern void options_mem_dupe(void *data, struct fio_option *options);
682extern void td_fill_rand_seeds(struct thread_data *);
683extern void add_job_opts(const char **);
684extern char *num2str(unsigned long, int, int, int);
685extern int ioengine_load(struct thread_data *);
686
687#define FIO_GETOPT_JOB 0x89000000
688#define FIO_GETOPT_IOENGINE 0x98000000
689#define FIO_NR_OPTIONS (FIO_MAX_OPTS + 128)
690
691/*
692 * ETA/status stuff
693 */
694extern void print_thread_status(void);
695extern void print_status_init(int);
696
697/*
698 * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it
699 * will never back again. It may cycle between running/verififying/fsyncing.
700 * Once the thread reaches TD_EXITED, it is just waiting for the core to
701 * reap it.
702 */
703enum {
704 TD_NOT_CREATED = 0,
705 TD_CREATED,
706 TD_INITIALIZED,
707 TD_RAMP,
708 TD_SETTING_UP,
709 TD_RUNNING,
710 TD_PRE_READING,
711 TD_VERIFYING,
712 TD_FSYNCING,
713 TD_EXITED,
714 TD_REAPED,
715};
716
717extern void td_set_runstate(struct thread_data *, int);
718#define TERMINATE_ALL (-1)
719extern void fio_terminate_threads(int);
720
721/*
722 * Memory helpers
723 */
724extern int __must_check fio_pin_memory(void);
725extern void fio_unpin_memory(void);
726extern int __must_check allocate_io_mem(struct thread_data *);
727extern void free_io_mem(struct thread_data *);
728
729/*
730 * Reset stats after ramp time completes
731 */
732extern void reset_all_stats(struct thread_data *);
733
734/*
735 * blktrace support
736 */
737#ifdef FIO_HAVE_BLKTRACE
738extern int is_blktrace(const char *);
739extern int load_blktrace(struct thread_data *, const char *);
740#endif
741
742/*
743 * Mark unused variables passed to ops functions as unused, to silence gcc
744 */
745#define fio_unused __attribute((__unused__))
746#define fio_init __attribute__((constructor))
747#define fio_exit __attribute__((destructor))
748
749#define for_each_td(td, i) \
750 for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++)
751#define for_each_file(td, f, i) \
752 if ((td)->files_index) \
753 for ((i) = 0, (f) = (td)->files[0]; \
754 (i) < (td)->o.nr_files && ((f) = (td)->files[i]) != NULL; \
755 (i)++)
756
757#define fio_assert(td, cond) do { \
758 if (!(cond)) { \
759 int *__foo = NULL; \
760 fprintf(stderr, "file:%s:%d, assert %s failed\n", __FILE__, __LINE__, #cond); \
761 td_set_runstate((td), TD_EXITED); \
762 (td)->error = EFAULT; \
763 *__foo = 0; \
764 } \
765} while (0)
766
767static inline int fio_fill_issue_time(struct thread_data *td)
768{
769 if (td->o.read_iolog_file ||
770 !td->o.disable_clat || !td->o.disable_slat || !td->o.disable_bw)
771 return 1;
772
773 return 0;
774}
775
776static inline int __should_check_rate(struct thread_data *td,
777 enum fio_ddir ddir)
778{
779 struct thread_options *o = &td->o;
780
781 /*
782 * If some rate setting was given, we need to check it
783 */
784 if (o->rate[ddir] || o->ratemin[ddir] || o->rate_iops[ddir] ||
785 o->rate_iops_min[ddir])
786 return 1;
787
788 return 0;
789}
790
791static inline int should_check_rate(struct thread_data *td,
792 uint64_t *bytes_done)
793{
794 int ret = 0;
795
796 if (bytes_done[DDIR_READ])
797 ret |= __should_check_rate(td, DDIR_READ);
798 if (bytes_done[DDIR_WRITE])
799 ret |= __should_check_rate(td, DDIR_WRITE);
800 if (bytes_done[DDIR_TRIM])
801 ret |= __should_check_rate(td, DDIR_TRIM);
802
803 return ret;
804}
805
806static inline int is_power_of_2(unsigned int val)
807{
808 return (val != 0 && ((val & (val - 1)) == 0));
809}
810
811/*
812 * We currently only need to do locking if we have verifier threads
813 * accessing our internal structures too
814 */
815static inline void td_io_u_lock(struct thread_data *td)
816{
817 if (td->o.verify_async)
818 pthread_mutex_lock(&td->io_u_lock);
819}
820
821static inline void td_io_u_unlock(struct thread_data *td)
822{
823 if (td->o.verify_async)
824 pthread_mutex_unlock(&td->io_u_lock);
825}
826
827static inline void td_io_u_free_notify(struct thread_data *td)
828{
829 if (td->o.verify_async)
830 pthread_cond_signal(&td->free_cond);
831}
832
833extern const char *fio_get_arch_string(int);
834extern const char *fio_get_os_string(int);
835
836enum {
837 FIO_OUTPUT_TERSE = 0,
838 FIO_OUTPUT_JSON,
839 FIO_OUTPUT_NORMAL,
840};
841
842enum {
843 FIO_RAND_DIST_RANDOM = 0,
844 FIO_RAND_DIST_ZIPF,
845 FIO_RAND_DIST_PARETO,
846};
847
848enum {
849 FIO_RAND_GEN_TAUSWORTHE = 0,
850 FIO_RAND_GEN_LFSR,
851};
852
853#endif
fio - Flexible IO Tester