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implement 'unit_base' option to select between KB and Kbit et. al.
[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 *filename_format;
106 char *opendir;
107 char *ioengine;
108 enum td_ddir td_ddir;
109 unsigned int rw_seq;
110 unsigned int kb_base;
111 unsigned int unit_base;
112 unsigned int ddir_seq_nr;
113 long ddir_seq_add;
114 unsigned int iodepth;
115 unsigned int iodepth_low;
116 unsigned int iodepth_batch;
117 unsigned int iodepth_batch_complete;
118
119 unsigned long long size;
120 unsigned int size_percent;
121 unsigned int fill_device;
122 unsigned long long file_size_low;
123 unsigned long long file_size_high;
124 unsigned long long start_offset;
125
126 unsigned int bs[DDIR_RWDIR_CNT];
127 unsigned int ba[DDIR_RWDIR_CNT];
128 unsigned int min_bs[DDIR_RWDIR_CNT];
129 unsigned int max_bs[DDIR_RWDIR_CNT];
130 struct bssplit *bssplit[DDIR_RWDIR_CNT];
131 unsigned int bssplit_nr[DDIR_RWDIR_CNT];
132
133 int *ignore_error[ERROR_TYPE_CNT];
134 unsigned int ignore_error_nr[ERROR_TYPE_CNT];
135 unsigned int error_dump;
136
137 unsigned int nr_files;
138 unsigned int open_files;
139 enum file_lock_mode file_lock_mode;
140
141 unsigned int odirect;
142 unsigned int invalidate_cache;
143 unsigned int create_serialize;
144 unsigned int create_fsync;
145 unsigned int create_on_open;
146 unsigned int create_only;
147 unsigned int end_fsync;
148 unsigned int pre_read;
149 unsigned int sync_io;
150 unsigned int verify;
151 unsigned int do_verify;
152 unsigned int verifysort;
153 unsigned int verifysort_nr;
154 unsigned int verify_interval;
155 unsigned int verify_offset;
156 char verify_pattern[MAX_PATTERN_SIZE];
157 unsigned int verify_pattern_bytes;
158 unsigned int verify_fatal;
159 unsigned int verify_dump;
160 unsigned int verify_async;
161 unsigned long long verify_backlog;
162 unsigned int verify_batch;
163 unsigned int experimental_verify;
164 unsigned int use_thread;
165 unsigned int unlink;
166 unsigned int do_disk_util;
167 unsigned int override_sync;
168 unsigned int rand_repeatable;
169 unsigned int use_os_rand;
170 unsigned int write_lat_log;
171 unsigned int write_bw_log;
172 unsigned int write_iops_log;
173 unsigned int log_avg_msec;
174 unsigned int norandommap;
175 unsigned int softrandommap;
176 unsigned int bs_unaligned;
177 unsigned int fsync_on_close;
178
179 unsigned int random_distribution;
180 double zipf_theta;
181 double pareto_h;
182
183 unsigned int random_generator;
184
185 unsigned int hugepage_size;
186 unsigned int rw_min_bs;
187 unsigned int thinktime;
188 unsigned int thinktime_spin;
189 unsigned int thinktime_blocks;
190 unsigned int fsync_blocks;
191 unsigned int fdatasync_blocks;
192 unsigned int barrier_blocks;
193 unsigned long long start_delay;
194 unsigned long long timeout;
195 unsigned long long ramp_time;
196 unsigned int overwrite;
197 unsigned int bw_avg_time;
198 unsigned int iops_avg_time;
199 unsigned int loops;
200 unsigned long long zone_range;
201 unsigned long long zone_size;
202 unsigned long long zone_skip;
203 enum fio_memtype mem_type;
204 unsigned int mem_align;
205
206 unsigned int max_latency;
207
208 unsigned int stonewall;
209 unsigned int new_group;
210 unsigned int numjobs;
211 os_cpu_mask_t cpumask;
212 unsigned int cpumask_set;
213 os_cpu_mask_t verify_cpumask;
214 unsigned int verify_cpumask_set;
215#ifdef CONFIG_LIBNUMA
216 struct bitmask *numa_cpunodesmask;
217 unsigned int numa_cpumask_set;
218 unsigned short numa_mem_mode;
219 unsigned int numa_mem_prefer_node;
220 struct bitmask *numa_memnodesmask;
221 unsigned int numa_memmask_set;
222#endif
223 unsigned int iolog;
224 unsigned int rwmixcycle;
225 unsigned int rwmix[2];
226 unsigned int nice;
227 unsigned int file_service_type;
228 unsigned int group_reporting;
229 unsigned int fadvise_hint;
230 enum fio_fallocate_mode fallocate_mode;
231 unsigned int zero_buffers;
232 unsigned int refill_buffers;
233 unsigned int scramble_buffers;
234 unsigned int compress_percentage;
235 unsigned int compress_chunk;
236 unsigned int time_based;
237 unsigned int disable_lat;
238 unsigned int disable_clat;
239 unsigned int disable_slat;
240 unsigned int disable_bw;
241 unsigned int unified_rw_rep;
242 unsigned int gtod_reduce;
243 unsigned int gtod_cpu;
244 unsigned int gtod_offload;
245 enum fio_cs clocksource;
246 unsigned int no_stall;
247 unsigned int trim_percentage;
248 unsigned int trim_batch;
249 unsigned int trim_zero;
250 unsigned long long trim_backlog;
251 unsigned int clat_percentiles;
252 unsigned int percentile_precision; /* digits after decimal for percentiles */
253 fio_fp64_t percentile_list[FIO_IO_U_LIST_MAX_LEN];
254
255 char *read_iolog_file;
256 char *write_iolog_file;
257 char *bw_log_file;
258 char *lat_log_file;
259 char *iops_log_file;
260 char *replay_redirect;
261
262 /*
263 * Pre-run and post-run shell
264 */
265 char *exec_prerun;
266 char *exec_postrun;
267
268 unsigned int rate[DDIR_RWDIR_CNT];
269 unsigned int ratemin[DDIR_RWDIR_CNT];
270 unsigned int ratecycle;
271 unsigned int rate_iops[DDIR_RWDIR_CNT];
272 unsigned int rate_iops_min[DDIR_RWDIR_CNT];
273
274 char *ioscheduler;
275
276 /*
277 * CPU "io" cycle burner
278 */
279 unsigned int cpuload;
280 unsigned int cpucycle;
281
282 /*
283 * I/O Error handling
284 */
285 enum error_type continue_on_error;
286
287 /*
288 * Benchmark profile type
289 */
290 char *profile;
291
292 /*
293 * blkio cgroup support
294 */
295 char *cgroup;
296 unsigned int cgroup_weight;
297 unsigned int cgroup_nodelete;
298
299 unsigned int uid;
300 unsigned int gid;
301
302 int flow_id;
303 int flow;
304 int flow_watermark;
305 unsigned int flow_sleep;
306
307 unsigned long long offset_increment;
308
309 unsigned int sync_file_range;
310};
311
312enum {
313 TD_F_VER_BACKLOG = 1,
314 TD_F_TRIM_BACKLOG = 2,
315 TD_F_READ_IOLOG = 4,
316 TD_F_REFILL_BUFFERS = 8,
317 TD_F_SCRAMBLE_BUFFERS = 16,
318 TD_F_VER_NONE = 32,
319 TD_F_PROFILE_OPS = 64,
320};
321
322enum {
323 FIO_RAND_BS_OFF = 0,
324 FIO_RAND_VER_OFF,
325 FIO_RAND_MIX_OFF,
326 FIO_RAND_FILE_OFF,
327 FIO_RAND_BLOCK_OFF,
328 FIO_RAND_FILE_SIZE_OFF,
329 FIO_RAND_TRIM_OFF,
330 FIO_RAND_BUF_OFF,
331 FIO_RAND_NR_OFFS,
332};
333
334/*
335 * This describes a single thread/process executing a fio job.
336 */
337struct thread_data {
338 struct thread_options o;
339 unsigned long flags;
340 void *eo;
341 char verror[FIO_VERROR_SIZE];
342 pthread_t thread;
343 int thread_number;
344 int groupid;
345 struct thread_stat ts;
346
347 struct io_log *slat_log;
348 struct io_log *clat_log;
349 struct io_log *lat_log;
350 struct io_log *bw_log;
351 struct io_log *iops_log;
352
353 uint64_t stat_io_bytes[DDIR_RWDIR_CNT];
354 struct timeval bw_sample_time;
355
356 uint64_t stat_io_blocks[DDIR_RWDIR_CNT];
357 struct timeval iops_sample_time;
358
359 volatile int update_rusage;
360 struct fio_mutex *rusage_sem;
361 struct rusage ru_start;
362 struct rusage ru_end;
363
364 struct fio_file **files;
365 unsigned char *file_locks;
366 unsigned int files_size;
367 unsigned int files_index;
368 unsigned int nr_open_files;
369 unsigned int nr_done_files;
370 unsigned int nr_normal_files;
371 union {
372 unsigned int next_file;
373 os_random_state_t next_file_state;
374 struct frand_state __next_file_state;
375 };
376 int error;
377 int sig;
378 int done;
379 pid_t pid;
380 char *orig_buffer;
381 size_t orig_buffer_size;
382 volatile int terminate;
383 volatile int runstate;
384 unsigned int ioprio;
385 unsigned int ioprio_set;
386 unsigned int last_was_sync;
387 enum fio_ddir last_ddir;
388
389 char *mmapfile;
390 int mmapfd;
391
392 void *iolog_buf;
393 FILE *iolog_f;
394
395 char *sysfs_root;
396
397 unsigned long rand_seeds[FIO_RAND_NR_OFFS];
398
399 union {
400 os_random_state_t bsrange_state;
401 struct frand_state __bsrange_state;
402 };
403 union {
404 os_random_state_t verify_state;
405 struct frand_state __verify_state;
406 };
407 union {
408 os_random_state_t trim_state;
409 struct frand_state __trim_state;
410 };
411
412 struct frand_state buf_state;
413
414 unsigned int verify_batch;
415 unsigned int trim_batch;
416
417 int shm_id;
418
419 /*
420 * IO engine hooks, contains everything needed to submit an io_u
421 * to any of the available IO engines.
422 */
423 struct ioengine_ops *io_ops;
424
425 /*
426 * Queue depth of io_u's that fio MIGHT do
427 */
428 unsigned int cur_depth;
429
430 /*
431 * io_u's about to be committed
432 */
433 unsigned int io_u_queued;
434
435 /*
436 * io_u's submitted but not completed yet
437 */
438 unsigned int io_u_in_flight;
439
440 /*
441 * List of free and busy io_u's
442 */
443 struct flist_head io_u_freelist;
444 struct flist_head io_u_busylist;
445 struct flist_head io_u_requeues;
446 pthread_mutex_t io_u_lock;
447 pthread_cond_t free_cond;
448
449 /*
450 * async verify offload
451 */
452 struct flist_head verify_list;
453 pthread_t *verify_threads;
454 unsigned int nr_verify_threads;
455 pthread_cond_t verify_cond;
456 int verify_thread_exit;
457
458 /*
459 * Rate state
460 */
461 uint64_t rate_bps[DDIR_RWDIR_CNT];
462 long rate_pending_usleep[DDIR_RWDIR_CNT];
463 unsigned long rate_bytes[DDIR_RWDIR_CNT];
464 unsigned long rate_blocks[DDIR_RWDIR_CNT];
465 struct timeval lastrate[DDIR_RWDIR_CNT];
466
467 uint64_t total_io_size;
468 uint64_t fill_device_size;
469
470 unsigned long io_issues[DDIR_RWDIR_CNT];
471 uint64_t io_blocks[DDIR_RWDIR_CNT];
472 uint64_t this_io_blocks[DDIR_RWDIR_CNT];
473 uint64_t io_bytes[DDIR_RWDIR_CNT];
474 uint64_t io_skip_bytes;
475 uint64_t this_io_bytes[DDIR_RWDIR_CNT];
476 uint64_t zone_bytes;
477 struct fio_mutex *mutex;
478
479 /*
480 * State for random io, a bitmap of blocks done vs not done
481 */
482 union {
483 os_random_state_t random_state;
484 struct frand_state __random_state;
485 };
486
487 struct timeval start; /* start of this loop */
488 struct timeval epoch; /* time job was started */
489 struct timeval last_issue;
490 struct timeval tv_cache;
491 unsigned int tv_cache_nr;
492 unsigned int tv_cache_mask;
493 unsigned int ramp_time_over;
494
495 /*
496 * read/write mixed workload state
497 */
498 union {
499 os_random_state_t rwmix_state;
500 struct frand_state __rwmix_state;
501 };
502 unsigned long rwmix_issues;
503 enum fio_ddir rwmix_ddir;
504 unsigned int ddir_seq_nr;
505
506 /*
507 * IO history logs for verification. We use a tree for sorting,
508 * if we are overwriting. Otherwise just use a fifo.
509 */
510 struct rb_root io_hist_tree;
511 struct flist_head io_hist_list;
512 unsigned long io_hist_len;
513
514 /*
515 * For IO replaying
516 */
517 struct flist_head io_log_list;
518
519 /*
520 * For tracking/handling discards
521 */
522 struct flist_head trim_list;
523 unsigned long trim_entries;
524
525 struct flist_head next_rand_list;
526
527 /*
528 * for fileservice, how often to switch to a new file
529 */
530 unsigned int file_service_nr;
531 unsigned int file_service_left;
532 struct fio_file *file_service_file;
533
534 unsigned int sync_file_range_nr;
535
536 /*
537 * For generating file sizes
538 */
539 union {
540 os_random_state_t file_size_state;
541 struct frand_state __file_size_state;
542 };
543
544 /*
545 * Error counts
546 */
547 unsigned int total_err_count;
548 int first_error;
549
550 struct fio_flow *flow;
551
552 /*
553 * Can be overloaded by profiles
554 */
555 struct prof_io_ops prof_io_ops;
556 void *prof_data;
557};
558
559/*
560 * when should interactive ETA output be generated
561 */
562enum {
563 FIO_ETA_AUTO,
564 FIO_ETA_ALWAYS,
565 FIO_ETA_NEVER,
566};
567
568#define __td_verror(td, err, msg, func) \
569 do { \
570 if ((td)->error) \
571 break; \
572 int e = (err); \
573 (td)->error = e; \
574 if (!(td)->first_error) \
575 snprintf(td->verror, sizeof(td->verror), "file:%s:%d, func=%s, error=%s", __FILE__, __LINE__, (func), (msg)); \
576 } while (0)
577
578
579#define td_clear_error(td) \
580 (td)->error = 0;
581#define td_verror(td, err, func) \
582 __td_verror((td), (err), strerror((err)), (func))
583#define td_vmsg(td, err, msg, func) \
584 __td_verror((td), (err), (msg), (func))
585
586#define __fio_stringify_1(x) #x
587#define __fio_stringify(x) __fio_stringify_1(x)
588
589extern int exitall_on_terminate;
590extern unsigned int thread_number;
591extern unsigned int stat_number;
592extern unsigned int nr_process, nr_thread;
593extern int shm_id;
594extern int groupid;
595extern int output_format;
596extern int temp_stall_ts;
597extern unsigned long long mlock_size;
598extern uintptr_t page_mask, page_size;
599extern int read_only;
600extern int eta_print;
601extern int eta_new_line;
602extern unsigned long done_secs;
603extern char *job_section;
604extern int fio_gtod_offload;
605extern int fio_gtod_cpu;
606extern enum fio_cs fio_clock_source;
607extern int fio_clock_source_set;
608extern int warnings_fatal;
609extern int terse_version;
610extern int is_backend;
611extern int nr_clients;
612extern int log_syslog;
613extern const char fio_version_string[];
614
615extern struct thread_data *threads;
616
617static inline void fio_ro_check(struct thread_data *td, struct io_u *io_u)
618{
619 assert(!(io_u->ddir == DDIR_WRITE && !td_write(td)));
620}
621
622#define REAL_MAX_JOBS 2048
623
624static inline enum error_type_bit td_error_type(enum fio_ddir ddir, int err)
625{
626 if (err == EILSEQ)
627 return ERROR_TYPE_VERIFY_BIT;
628 if (ddir == DDIR_READ)
629 return ERROR_TYPE_READ_BIT;
630 return ERROR_TYPE_WRITE_BIT;
631}
632
633static int __NON_FATAL_ERR[] = {EIO, EILSEQ};
634static inline int td_non_fatal_error(struct thread_data *td,
635 enum error_type_bit etype, int err)
636{
637 int i;
638 if (!td->o.ignore_error[etype]) {
639 td->o.ignore_error[etype] = __NON_FATAL_ERR;
640 td->o.ignore_error_nr[etype] = sizeof(__NON_FATAL_ERR)
641 / sizeof(int);
642 }
643
644 if (!(td->o.continue_on_error & (1 << etype)))
645 return 0;
646 for (i = 0; i < td->o.ignore_error_nr[etype]; i++)
647 if (td->o.ignore_error[etype][i] == err)
648 return 1;
649 return 0;
650}
651
652static inline void update_error_count(struct thread_data *td, int err)
653{
654 td->total_err_count++;
655 if (td->total_err_count == 1)
656 td->first_error = err;
657}
658
659static inline int should_fsync(struct thread_data *td)
660{
661 if (td->last_was_sync)
662 return 0;
663 if (td_write(td) || td_rw(td) || td->o.override_sync)
664 return 1;
665
666 return 0;
667}
668
669/*
670 * Init/option functions
671 */
672extern int __must_check parse_options(int, char **);
673extern int parse_jobs_ini(char *, int, int);
674extern int parse_cmd_line(int, char **);
675extern int fio_backend(void);
676extern void reset_fio_state(void);
677extern void clear_io_state(struct thread_data *);
678extern int fio_options_parse(struct thread_data *, char **, int);
679extern void fio_keywords_init(void);
680extern int fio_cmd_option_parse(struct thread_data *, const char *, char *);
681extern int fio_cmd_ioengine_option_parse(struct thread_data *, const char *, char *);
682extern void fio_fill_default_options(struct thread_data *);
683extern int fio_show_option_help(const char *);
684extern void fio_options_set_ioengine_opts(struct option *long_options, struct thread_data *td);
685extern void fio_options_dup_and_init(struct option *);
686extern void fio_options_mem_dupe(struct thread_data *);
687extern void options_mem_dupe(void *data, struct fio_option *options);
688extern void td_fill_rand_seeds(struct thread_data *);
689extern void add_job_opts(const char **);
690extern char *num2str(unsigned long, int, int, int, int);
691extern int ioengine_load(struct thread_data *);
692
693#define FIO_GETOPT_JOB 0x89000000
694#define FIO_GETOPT_IOENGINE 0x98000000
695#define FIO_NR_OPTIONS (FIO_MAX_OPTS + 128)
696
697/*
698 * ETA/status stuff
699 */
700extern void print_thread_status(void);
701extern void print_status_init(int);
702
703/*
704 * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it
705 * will never back again. It may cycle between running/verififying/fsyncing.
706 * Once the thread reaches TD_EXITED, it is just waiting for the core to
707 * reap it.
708 */
709enum {
710 TD_NOT_CREATED = 0,
711 TD_CREATED,
712 TD_INITIALIZED,
713 TD_RAMP,
714 TD_SETTING_UP,
715 TD_RUNNING,
716 TD_PRE_READING,
717 TD_VERIFYING,
718 TD_FSYNCING,
719 TD_EXITED,
720 TD_REAPED,
721};
722
723extern void td_set_runstate(struct thread_data *, int);
724#define TERMINATE_ALL (-1)
725extern void fio_terminate_threads(int);
726
727/*
728 * Memory helpers
729 */
730extern int __must_check fio_pin_memory(void);
731extern void fio_unpin_memory(void);
732extern int __must_check allocate_io_mem(struct thread_data *);
733extern void free_io_mem(struct thread_data *);
734
735/*
736 * Reset stats after ramp time completes
737 */
738extern void reset_all_stats(struct thread_data *);
739
740/*
741 * blktrace support
742 */
743#ifdef FIO_HAVE_BLKTRACE
744extern int is_blktrace(const char *);
745extern int load_blktrace(struct thread_data *, const char *);
746#endif
747
748/*
749 * Mark unused variables passed to ops functions as unused, to silence gcc
750 */
751#define fio_unused __attribute((__unused__))
752#define fio_init __attribute__((constructor))
753#define fio_exit __attribute__((destructor))
754
755#define for_each_td(td, i) \
756 for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++)
757#define for_each_file(td, f, i) \
758 if ((td)->files_index) \
759 for ((i) = 0, (f) = (td)->files[0]; \
760 (i) < (td)->o.nr_files && ((f) = (td)->files[i]) != NULL; \
761 (i)++)
762
763#define fio_assert(td, cond) do { \
764 if (!(cond)) { \
765 int *__foo = NULL; \
766 fprintf(stderr, "file:%s:%d, assert %s failed\n", __FILE__, __LINE__, #cond); \
767 td_set_runstate((td), TD_EXITED); \
768 (td)->error = EFAULT; \
769 *__foo = 0; \
770 } \
771} while (0)
772
773static inline int fio_fill_issue_time(struct thread_data *td)
774{
775 if (td->o.read_iolog_file ||
776 !td->o.disable_clat || !td->o.disable_slat || !td->o.disable_bw)
777 return 1;
778
779 return 0;
780}
781
782static inline int __should_check_rate(struct thread_data *td,
783 enum fio_ddir ddir)
784{
785 struct thread_options *o = &td->o;
786
787 /*
788 * If some rate setting was given, we need to check it
789 */
790 if (o->rate[ddir] || o->ratemin[ddir] || o->rate_iops[ddir] ||
791 o->rate_iops_min[ddir])
792 return 1;
793
794 return 0;
795}
796
797static inline int should_check_rate(struct thread_data *td,
798 uint64_t *bytes_done)
799{
800 int ret = 0;
801
802 if (bytes_done[DDIR_READ])
803 ret |= __should_check_rate(td, DDIR_READ);
804 if (bytes_done[DDIR_WRITE])
805 ret |= __should_check_rate(td, DDIR_WRITE);
806 if (bytes_done[DDIR_TRIM])
807 ret |= __should_check_rate(td, DDIR_TRIM);
808
809 return ret;
810}
811
812static inline unsigned int td_max_bs(struct thread_data *td)
813{
814 unsigned int max_bs;
815
816 max_bs = max(td->o.max_bs[DDIR_READ], td->o.max_bs[DDIR_WRITE]);
817 return max(td->o.max_bs[DDIR_TRIM], max_bs);
818}
819
820static inline int is_power_of_2(unsigned int val)
821{
822 return (val != 0 && ((val & (val - 1)) == 0));
823}
824
825/*
826 * We currently only need to do locking if we have verifier threads
827 * accessing our internal structures too
828 */
829static inline void td_io_u_lock(struct thread_data *td)
830{
831 if (td->o.verify_async)
832 pthread_mutex_lock(&td->io_u_lock);
833}
834
835static inline void td_io_u_unlock(struct thread_data *td)
836{
837 if (td->o.verify_async)
838 pthread_mutex_unlock(&td->io_u_lock);
839}
840
841static inline void td_io_u_free_notify(struct thread_data *td)
842{
843 if (td->o.verify_async)
844 pthread_cond_signal(&td->free_cond);
845}
846
847extern const char *fio_get_arch_string(int);
848extern const char *fio_get_os_string(int);
849
850enum {
851 FIO_OUTPUT_TERSE = 0,
852 FIO_OUTPUT_JSON,
853 FIO_OUTPUT_NORMAL,
854};
855
856enum {
857 FIO_RAND_DIST_RANDOM = 0,
858 FIO_RAND_DIST_ZIPF,
859 FIO_RAND_DIST_PARETO,
860};
861
862enum {
863 FIO_RAND_GEN_TAUSWORTHE = 0,
864 FIO_RAND_GEN_LFSR,
865};
866
867#endif
fio - Flexible IO Tester