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Merge branch 'no-unittest-dep' of https://github.com/parallel-fs-utils/fio
[fio.git] / fio.h
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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
17#include "compiler/compiler.h"
18#include "thread_options.h"
19#include "flist.h"
20#include "fifo.h"
21#include "arch/arch.h"
22#include "os/os.h"
23#include "log.h"
24#include "debug.h"
25#include "file.h"
26#include "io_ddir.h"
27#include "ioengines.h"
28#include "iolog.h"
29#include "helpers.h"
30#include "minmax.h"
31#include "options.h"
32#include "profile.h"
33#include "fio_time.h"
34#include "gettime.h"
35#include "oslib/getopt.h"
36#include "lib/rand.h"
37#include "lib/rbtree.h"
38#include "lib/num2str.h"
39#include "client.h"
40#include "server.h"
41#include "stat.h"
42#include "flow.h"
43#include "io_u.h"
44#include "io_u_queue.h"
45#include "workqueue.h"
46#include "steadystate.h"
47#include "lib/nowarn_snprintf.h"
48
49#ifdef CONFIG_SOLARISAIO
50#include <sys/asynch.h>
51#endif
52
53#ifdef CONFIG_LIBNUMA
54#include <linux/mempolicy.h>
55#include <numa.h>
56
57/*
58 * "local" is pseudo-policy
59 */
60#define MPOL_LOCAL MPOL_MAX
61#endif
62
63#ifdef CONFIG_CUDA
64#include <cuda.h>
65#endif
66
67struct fio_sem;
68
69/*
70 * offset generator types
71 */
72enum {
73 RW_SEQ_SEQ = 0,
74 RW_SEQ_IDENT,
75};
76
77enum {
78 __TD_F_VER_BACKLOG = 0,
79 __TD_F_TRIM_BACKLOG,
80 __TD_F_READ_IOLOG,
81 __TD_F_REFILL_BUFFERS,
82 __TD_F_SCRAMBLE_BUFFERS,
83 __TD_F_DO_VERIFY,
84 __TD_F_PROFILE_OPS,
85 __TD_F_COMPRESS,
86 __TD_F_COMPRESS_LOG,
87 __TD_F_VSTATE_SAVED,
88 __TD_F_NEED_LOCK,
89 __TD_F_CHILD,
90 __TD_F_NO_PROGRESS,
91 __TD_F_REGROW_LOGS,
92 __TD_F_MMAP_KEEP,
93 __TD_F_DIRS_CREATED,
94 __TD_F_CHECK_RATE,
95 __TD_F_LAST, /* not a real bit, keep last */
96};
97
98enum {
99 TD_F_VER_BACKLOG = 1U << __TD_F_VER_BACKLOG,
100 TD_F_TRIM_BACKLOG = 1U << __TD_F_TRIM_BACKLOG,
101 TD_F_READ_IOLOG = 1U << __TD_F_READ_IOLOG,
102 TD_F_REFILL_BUFFERS = 1U << __TD_F_REFILL_BUFFERS,
103 TD_F_SCRAMBLE_BUFFERS = 1U << __TD_F_SCRAMBLE_BUFFERS,
104 TD_F_DO_VERIFY = 1U << __TD_F_DO_VERIFY,
105 TD_F_PROFILE_OPS = 1U << __TD_F_PROFILE_OPS,
106 TD_F_COMPRESS = 1U << __TD_F_COMPRESS,
107 TD_F_COMPRESS_LOG = 1U << __TD_F_COMPRESS_LOG,
108 TD_F_VSTATE_SAVED = 1U << __TD_F_VSTATE_SAVED,
109 TD_F_NEED_LOCK = 1U << __TD_F_NEED_LOCK,
110 TD_F_CHILD = 1U << __TD_F_CHILD,
111 TD_F_NO_PROGRESS = 1U << __TD_F_NO_PROGRESS,
112 TD_F_REGROW_LOGS = 1U << __TD_F_REGROW_LOGS,
113 TD_F_MMAP_KEEP = 1U << __TD_F_MMAP_KEEP,
114 TD_F_DIRS_CREATED = 1U << __TD_F_DIRS_CREATED,
115 TD_F_CHECK_RATE = 1U << __TD_F_CHECK_RATE,
116};
117
118enum {
119 FIO_RAND_BS_OFF = 0,
120 FIO_RAND_BS1_OFF,
121 FIO_RAND_BS2_OFF,
122 FIO_RAND_VER_OFF,
123 FIO_RAND_MIX_OFF,
124 FIO_RAND_FILE_OFF,
125 FIO_RAND_BLOCK_OFF,
126 FIO_RAND_FILE_SIZE_OFF,
127 FIO_RAND_TRIM_OFF,
128 FIO_RAND_BUF_OFF,
129 FIO_RAND_SEQ_RAND_READ_OFF,
130 FIO_RAND_SEQ_RAND_WRITE_OFF,
131 FIO_RAND_SEQ_RAND_TRIM_OFF,
132 FIO_RAND_START_DELAY,
133 FIO_DEDUPE_OFF,
134 FIO_RAND_POISSON_OFF,
135 FIO_RAND_ZONE_OFF,
136 FIO_RAND_POISSON2_OFF,
137 FIO_RAND_POISSON3_OFF,
138 FIO_RAND_NR_OFFS,
139};
140
141enum {
142 IO_MODE_INLINE = 0,
143 IO_MODE_OFFLOAD = 1,
144
145 RATE_PROCESS_LINEAR = 0,
146 RATE_PROCESS_POISSON = 1,
147};
148
149enum {
150 F_ADV_NONE = 0,
151 F_ADV_TYPE,
152 F_ADV_RANDOM,
153 F_ADV_SEQUENTIAL,
154};
155
156/*
157 * Per-thread/process specific data. Only used for the network client
158 * for now.
159 */
160void sk_out_assign(struct sk_out *);
161void sk_out_drop(void);
162
163struct zone_split_index {
164 uint8_t size_perc;
165 uint8_t size_perc_prev;
166 uint64_t size;
167 uint64_t size_prev;
168};
169
170#define FIO_MAX_OPEN_ZBD_ZONES 128
171
172/*
173 * This describes a single thread/process executing a fio job.
174 */
175struct thread_data {
176 struct flist_head opt_list;
177 unsigned long flags;
178 struct thread_options o;
179 void *eo;
180 pthread_t thread;
181 unsigned int thread_number;
182 unsigned int subjob_number;
183 unsigned int groupid;
184 struct thread_stat ts __attribute__ ((aligned(8)));
185
186 int client_type;
187
188 struct io_log *slat_log;
189 struct io_log *clat_log;
190 struct io_log *clat_hist_log;
191 struct io_log *lat_log;
192 struct io_log *bw_log;
193 struct io_log *iops_log;
194
195 struct workqueue log_compress_wq;
196
197 struct thread_data *parent;
198
199 uint64_t stat_io_bytes[DDIR_RWDIR_CNT];
200 struct timespec bw_sample_time;
201
202 uint64_t stat_io_blocks[DDIR_RWDIR_CNT];
203 struct timespec iops_sample_time;
204
205 volatile int update_rusage;
206 struct fio_sem *rusage_sem;
207 struct rusage ru_start;
208 struct rusage ru_end;
209
210 struct fio_file **files;
211 unsigned char *file_locks;
212 unsigned int files_size;
213 unsigned int files_index;
214 unsigned int nr_open_files;
215 unsigned int nr_done_files;
216 union {
217 unsigned int next_file;
218 struct frand_state next_file_state;
219 };
220 union {
221 struct zipf_state next_file_zipf;
222 struct gauss_state next_file_gauss;
223 };
224 union {
225 double zipf_theta;
226 double pareto_h;
227 double gauss_dev;
228 };
229 int error;
230 int sig;
231 int done;
232 int stop_io;
233 pid_t pid;
234 char *orig_buffer;
235 size_t orig_buffer_size;
236 volatile int runstate;
237 volatile bool terminate;
238 bool last_was_sync;
239 enum fio_ddir last_ddir;
240
241 int mmapfd;
242
243 void *iolog_buf;
244 FILE *iolog_f;
245
246 unsigned long rand_seeds[FIO_RAND_NR_OFFS];
247
248 struct frand_state bsrange_state[DDIR_RWDIR_CNT];
249 struct frand_state verify_state;
250 struct frand_state trim_state;
251 struct frand_state delay_state;
252
253 struct frand_state buf_state;
254 struct frand_state buf_state_prev;
255 struct frand_state dedupe_state;
256 struct frand_state zone_state;
257
258 struct zone_split_index **zone_state_index;
259
260 unsigned int verify_batch;
261 unsigned int trim_batch;
262
263 struct thread_io_list *vstate;
264
265 int shm_id;
266
267 /*
268 * IO engine hooks, contains everything needed to submit an io_u
269 * to any of the available IO engines.
270 */
271 struct ioengine_ops *io_ops;
272 int io_ops_init;
273
274 /*
275 * IO engine private data and dlhandle.
276 */
277 void *io_ops_data;
278 void *io_ops_dlhandle;
279
280 /*
281 * Queue depth of io_u's that fio MIGHT do
282 */
283 unsigned int cur_depth;
284
285 /*
286 * io_u's about to be committed
287 */
288 unsigned int io_u_queued;
289
290 /*
291 * io_u's submitted but not completed yet
292 */
293 unsigned int io_u_in_flight;
294
295 /*
296 * List of free and busy io_u's
297 */
298 struct io_u_ring io_u_requeues;
299 struct io_u_queue io_u_freelist;
300 struct io_u_queue io_u_all;
301 pthread_mutex_t io_u_lock;
302 pthread_cond_t free_cond;
303
304 /*
305 * async verify offload
306 */
307 struct flist_head verify_list;
308 pthread_t *verify_threads;
309 unsigned int nr_verify_threads;
310 pthread_cond_t verify_cond;
311 int verify_thread_exit;
312
313 /*
314 * Rate state
315 */
316 uint64_t rate_bps[DDIR_RWDIR_CNT];
317 uint64_t rate_next_io_time[DDIR_RWDIR_CNT];
318 unsigned long rate_bytes[DDIR_RWDIR_CNT];
319 unsigned long rate_blocks[DDIR_RWDIR_CNT];
320 unsigned long long rate_io_issue_bytes[DDIR_RWDIR_CNT];
321 struct timespec lastrate[DDIR_RWDIR_CNT];
322 int64_t last_usec[DDIR_RWDIR_CNT];
323 struct frand_state poisson_state[DDIR_RWDIR_CNT];
324
325 /*
326 * Enforced rate submission/completion workqueue
327 */
328 struct workqueue io_wq;
329
330 uint64_t total_io_size;
331 uint64_t fill_device_size;
332
333 /*
334 * Issue side
335 */
336 uint64_t io_issues[DDIR_RWDIR_CNT];
337 uint64_t io_issue_bytes[DDIR_RWDIR_CNT];
338 uint64_t loops;
339
340 /*
341 * Completions
342 */
343 uint64_t io_blocks[DDIR_RWDIR_CNT];
344 uint64_t this_io_blocks[DDIR_RWDIR_CNT];
345 uint64_t io_bytes[DDIR_RWDIR_CNT];
346 uint64_t this_io_bytes[DDIR_RWDIR_CNT];
347 uint64_t io_skip_bytes;
348 uint64_t zone_bytes;
349 struct fio_sem *sem;
350 uint64_t bytes_done[DDIR_RWDIR_CNT];
351
352 /*
353 * State for random io, a bitmap of blocks done vs not done
354 */
355 struct frand_state random_state;
356
357 struct timespec start; /* start of this loop */
358 struct timespec epoch; /* time job was started */
359 unsigned long long unix_epoch; /* Time job was started, unix epoch based. */
360 struct timespec last_issue;
361 long time_offset;
362 struct timespec ts_cache;
363 struct timespec terminate_time;
364 unsigned int ts_cache_nr;
365 unsigned int ts_cache_mask;
366 bool ramp_time_over;
367
368 /*
369 * Time since last latency_window was started
370 */
371 struct timespec latency_ts;
372 unsigned int latency_qd;
373 unsigned int latency_qd_high;
374 unsigned int latency_qd_low;
375 unsigned int latency_failed;
376 uint64_t latency_ios;
377 int latency_end_run;
378
379 /*
380 * read/write mixed workload state
381 */
382 struct frand_state rwmix_state;
383 unsigned long rwmix_issues;
384 enum fio_ddir rwmix_ddir;
385 unsigned int ddir_seq_nr;
386
387 /*
388 * rand/seq mixed workload state
389 */
390 struct frand_state seq_rand_state[DDIR_RWDIR_CNT];
391
392 /*
393 * IO history logs for verification. We use a tree for sorting,
394 * if we are overwriting. Otherwise just use a fifo.
395 */
396 struct rb_root io_hist_tree;
397 struct flist_head io_hist_list;
398 unsigned long io_hist_len;
399
400 /*
401 * For IO replaying
402 */
403 struct flist_head io_log_list;
404 FILE *io_log_rfile;
405 unsigned int io_log_current;
406 unsigned int io_log_checkmark;
407 unsigned int io_log_highmark;
408 struct timespec io_log_highmark_time;
409
410 /*
411 * For tracking/handling discards
412 */
413 struct flist_head trim_list;
414 unsigned long trim_entries;
415
416 /*
417 * for fileservice, how often to switch to a new file
418 */
419 unsigned int file_service_nr;
420 unsigned int file_service_left;
421 struct fio_file *file_service_file;
422
423 unsigned int sync_file_range_nr;
424
425 /*
426 * For generating file sizes
427 */
428 struct frand_state file_size_state;
429
430 /*
431 * Error counts
432 */
433 unsigned int total_err_count;
434 int first_error;
435
436 struct fio_flow *flow;
437
438 /*
439 * Can be overloaded by profiles
440 */
441 struct prof_io_ops prof_io_ops;
442 void *prof_data;
443
444 void *pinned_mem;
445
446 struct steadystate_data ss;
447
448 char verror[FIO_VERROR_SIZE];
449
450#ifdef CONFIG_CUDA
451 /*
452 * for GPU memory management
453 */
454 int gpu_dev_cnt;
455 int gpu_dev_id;
456 CUdevice cu_dev;
457 CUcontext cu_ctx;
458 CUdeviceptr dev_mem_ptr;
459#endif
460
461};
462
463/*
464 * when should interactive ETA output be generated
465 */
466enum {
467 FIO_ETA_AUTO,
468 FIO_ETA_ALWAYS,
469 FIO_ETA_NEVER,
470};
471
472#define __td_verror(td, err, msg, func) \
473 do { \
474 unsigned int ____e = (err); \
475 if ((td)->error) \
476 break; \
477 (td)->error = ____e; \
478 if (!(td)->first_error) \
479 nowarn_snprintf(td->verror, sizeof(td->verror), \
480 "file:%s:%d, func=%s, error=%s", \
481 __FILE__, __LINE__, (func), (msg)); \
482 } while (0)
483
484
485#define td_clear_error(td) do { \
486 (td)->error = 0; \
487 if ((td)->parent) \
488 (td)->parent->error = 0; \
489} while (0)
490
491#define td_verror(td, err, func) do { \
492 __td_verror((td), (err), strerror((err)), (func)); \
493 if ((td)->parent) \
494 __td_verror((td)->parent, (err), strerror((err)), (func)); \
495} while (0)
496
497#define td_vmsg(td, err, msg, func) do { \
498 __td_verror((td), (err), (msg), (func)); \
499 if ((td)->parent) \
500 __td_verror((td)->parent, (err), (msg), (func)); \
501} while (0)
502
503#define __fio_stringify_1(x) #x
504#define __fio_stringify(x) __fio_stringify_1(x)
505
506extern int exitall_on_terminate;
507extern unsigned int thread_number;
508extern unsigned int stat_number;
509extern int shm_id;
510extern int groupid;
511extern int output_format;
512extern int append_terse_output;
513extern int temp_stall_ts;
514extern uintptr_t page_mask, page_size;
515extern int read_only;
516extern int eta_print;
517extern int eta_new_line;
518extern unsigned int eta_interval_msec;
519extern unsigned long done_secs;
520extern int fio_gtod_offload;
521extern int fio_gtod_cpu;
522extern enum fio_cs fio_clock_source;
523extern int fio_clock_source_set;
524extern int warnings_fatal;
525extern int terse_version;
526extern int is_backend;
527extern int is_local_backend;
528extern int nr_clients;
529extern int log_syslog;
530extern int status_interval;
531extern const char fio_version_string[];
532extern char *trigger_file;
533extern char *trigger_cmd;
534extern char *trigger_remote_cmd;
535extern long long trigger_timeout;
536extern char *aux_path;
537
538extern struct thread_data *threads;
539
540static inline bool is_running_backend(void)
541{
542 return is_backend || is_local_backend;
543}
544
545extern bool eta_time_within_slack(unsigned int time);
546
547static inline void fio_ro_check(const struct thread_data *td, struct io_u *io_u)
548{
549 assert(!(io_u->ddir == DDIR_WRITE && !td_write(td)) &&
550 !(io_u->ddir == DDIR_TRIM && !td_trim(td)));
551}
552
553#define REAL_MAX_JOBS 4096
554
555static inline bool should_fsync(struct thread_data *td)
556{
557 if (td->last_was_sync)
558 return false;
559 if (td_write(td) || td->o.override_sync)
560 return true;
561
562 return false;
563}
564
565/*
566 * Init/option functions
567 */
568extern int __must_check fio_init_options(void);
569extern int __must_check parse_options(int, char **);
570extern int parse_jobs_ini(char *, int, int, int);
571extern int parse_cmd_line(int, char **, int);
572extern int fio_backend(struct sk_out *);
573extern void reset_fio_state(void);
574extern void clear_io_state(struct thread_data *, int);
575extern int fio_options_parse(struct thread_data *, char **, int);
576extern void fio_keywords_init(void);
577extern void fio_keywords_exit(void);
578extern int fio_cmd_option_parse(struct thread_data *, const char *, char *);
579extern int fio_cmd_ioengine_option_parse(struct thread_data *, const char *, char *);
580extern void fio_fill_default_options(struct thread_data *);
581extern int fio_show_option_help(const char *);
582extern void fio_options_set_ioengine_opts(struct option *long_options, struct thread_data *td);
583extern void fio_options_dup_and_init(struct option *);
584extern char *fio_option_dup_subs(const char *);
585extern void fio_options_mem_dupe(struct thread_data *);
586extern void td_fill_rand_seeds(struct thread_data *);
587extern void td_fill_verify_state_seed(struct thread_data *);
588extern void add_job_opts(const char **, int);
589extern int ioengine_load(struct thread_data *);
590extern bool parse_dryrun(void);
591extern int fio_running_or_pending_io_threads(void);
592extern int fio_set_fd_nonblocking(int, const char *);
593extern void sig_show_status(int sig);
594extern struct thread_data *get_global_options(void);
595
596extern uintptr_t page_mask;
597extern uintptr_t page_size;
598extern int initialize_fio(char *envp[]);
599extern void deinitialize_fio(void);
600
601#define FIO_GETOPT_JOB 0x89000000
602#define FIO_GETOPT_IOENGINE 0x98000000
603#define FIO_NR_OPTIONS (FIO_MAX_OPTS + 128)
604
605/*
606 * ETA/status stuff
607 */
608extern void print_thread_status(void);
609extern void print_status_init(int);
610extern char *fio_uint_to_kmg(unsigned int val);
611
612/*
613 * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it
614 * will never back again. It may cycle between running/verififying/fsyncing.
615 * Once the thread reaches TD_EXITED, it is just waiting for the core to
616 * reap it.
617 */
618enum {
619 TD_NOT_CREATED = 0,
620 TD_CREATED,
621 TD_INITIALIZED,
622 TD_RAMP,
623 TD_SETTING_UP,
624 TD_RUNNING,
625 TD_PRE_READING,
626 TD_VERIFYING,
627 TD_FSYNCING,
628 TD_FINISHING,
629 TD_EXITED,
630 TD_REAPED,
631 TD_LAST,
632 TD_NR,
633};
634
635#define TD_ENG_FLAG_SHIFT 17
636#define TD_ENG_FLAG_MASK ((1U << 17) - 1)
637
638static inline void td_set_ioengine_flags(struct thread_data *td)
639{
640 td->flags = (~(TD_ENG_FLAG_MASK << TD_ENG_FLAG_SHIFT) & td->flags) |
641 (td->io_ops->flags << TD_ENG_FLAG_SHIFT);
642}
643
644static inline bool td_ioengine_flagged(struct thread_data *td,
645 enum fio_ioengine_flags flags)
646{
647 return ((td->flags >> TD_ENG_FLAG_SHIFT) & flags) != 0;
648}
649
650extern void td_set_runstate(struct thread_data *, int);
651extern int td_bump_runstate(struct thread_data *, int);
652extern void td_restore_runstate(struct thread_data *, int);
653extern const char *runstate_to_name(int runstate);
654
655/*
656 * Allow 60 seconds for a job to quit on its own, otherwise reap with
657 * a vengeance.
658 */
659#define FIO_REAP_TIMEOUT 300
660
661#define TERMINATE_ALL (-1U)
662extern void fio_terminate_threads(unsigned int);
663extern void fio_mark_td_terminate(struct thread_data *);
664
665/*
666 * Memory helpers
667 */
668extern int __must_check fio_pin_memory(struct thread_data *);
669extern void fio_unpin_memory(struct thread_data *);
670extern int __must_check allocate_io_mem(struct thread_data *);
671extern void free_io_mem(struct thread_data *);
672extern void free_threads_shm(void);
673
674#ifdef FIO_INTERNAL
675#define PTR_ALIGN(ptr, mask) \
676 (char *) (((uintptr_t) (ptr) + (mask)) & ~(mask))
677#endif
678
679/*
680 * Reset stats after ramp time completes
681 */
682extern void reset_all_stats(struct thread_data *);
683
684extern int io_queue_event(struct thread_data *td, struct io_u *io_u, int *ret,
685 enum fio_ddir ddir, uint64_t *bytes_issued, int from_verify,
686 struct timespec *comp_time);
687
688/*
689 * Latency target helpers
690 */
691extern void lat_target_check(struct thread_data *);
692extern void lat_target_init(struct thread_data *);
693extern void lat_target_reset(struct thread_data *);
694
695/*
696 * Iterates all threads/processes within all the defined jobs
697 */
698#define for_each_td(td, i) \
699 for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++)
700#define for_each_file(td, f, i) \
701 if ((td)->files_index) \
702 for ((i) = 0, (f) = (td)->files[0]; \
703 (i) < (td)->o.nr_files && ((f) = (td)->files[i]) != NULL; \
704 (i)++)
705
706#define fio_assert(td, cond) do { \
707 if (!(cond)) { \
708 int *__foo = NULL; \
709 fprintf(stderr, "file:%s:%d, assert %s failed\n", __FILE__, __LINE__, #cond); \
710 td_set_runstate((td), TD_EXITED); \
711 (td)->error = EFAULT; \
712 *__foo = 0; \
713 } \
714} while (0)
715
716static inline bool fio_fill_issue_time(struct thread_data *td)
717{
718 if (td->o.read_iolog_file ||
719 !td->o.disable_clat || !td->o.disable_slat || !td->o.disable_bw)
720 return true;
721
722 return false;
723}
724
725static inline bool option_check_rate(struct thread_data *td, enum fio_ddir ddir)
726{
727 struct thread_options *o = &td->o;
728
729 /*
730 * If some rate setting was given, we need to check it
731 */
732 if (o->rate[ddir] || o->ratemin[ddir] || o->rate_iops[ddir] ||
733 o->rate_iops_min[ddir])
734 return true;
735
736 return false;
737}
738
739static inline bool __should_check_rate(struct thread_data *td)
740{
741 return (td->flags & TD_F_CHECK_RATE) != 0;
742}
743
744static inline bool should_check_rate(struct thread_data *td)
745{
746 if (!__should_check_rate(td))
747 return false;
748
749 return ddir_rw_sum(td->bytes_done) != 0;
750}
751
752static inline unsigned long long td_max_bs(struct thread_data *td)
753{
754 unsigned long long max_bs;
755
756 max_bs = max(td->o.max_bs[DDIR_READ], td->o.max_bs[DDIR_WRITE]);
757 return max(td->o.max_bs[DDIR_TRIM], max_bs);
758}
759
760static inline unsigned long long td_min_bs(struct thread_data *td)
761{
762 unsigned long long min_bs;
763
764 min_bs = min(td->o.min_bs[DDIR_READ], td->o.min_bs[DDIR_WRITE]);
765 return min(td->o.min_bs[DDIR_TRIM], min_bs);
766}
767
768static inline bool td_async_processing(struct thread_data *td)
769{
770 return (td->flags & TD_F_NEED_LOCK) != 0;
771}
772
773/*
774 * We currently only need to do locking if we have verifier threads
775 * accessing our internal structures too
776 */
777static inline void __td_io_u_lock(struct thread_data *td)
778{
779 pthread_mutex_lock(&td->io_u_lock);
780}
781
782static inline void __td_io_u_unlock(struct thread_data *td)
783{
784 pthread_mutex_unlock(&td->io_u_lock);
785}
786
787static inline void td_io_u_free_notify(struct thread_data *td)
788{
789 if (td_async_processing(td))
790 pthread_cond_signal(&td->free_cond);
791}
792
793static inline void td_flags_clear(struct thread_data *td, unsigned int *flags,
794 unsigned int value)
795{
796 if (!td_async_processing(td))
797 *flags &= ~value;
798 else
799 __sync_fetch_and_and(flags, ~value);
800}
801
802static inline void td_flags_set(struct thread_data *td, unsigned int *flags,
803 unsigned int value)
804{
805 if (!td_async_processing(td))
806 *flags |= value;
807 else
808 __sync_fetch_and_or(flags, value);
809}
810
811extern const char *fio_get_arch_string(int);
812extern const char *fio_get_os_string(int);
813
814enum {
815 __FIO_OUTPUT_TERSE = 0,
816 __FIO_OUTPUT_JSON = 1,
817 __FIO_OUTPUT_NORMAL = 2,
818 __FIO_OUTPUT_JSON_PLUS = 3,
819 FIO_OUTPUT_NR = 4,
820
821 FIO_OUTPUT_TERSE = 1U << __FIO_OUTPUT_TERSE,
822 FIO_OUTPUT_JSON = 1U << __FIO_OUTPUT_JSON,
823 FIO_OUTPUT_NORMAL = 1U << __FIO_OUTPUT_NORMAL,
824 FIO_OUTPUT_JSON_PLUS = 1U << __FIO_OUTPUT_JSON_PLUS,
825};
826
827enum {
828 FIO_RAND_DIST_RANDOM = 0,
829 FIO_RAND_DIST_ZIPF,
830 FIO_RAND_DIST_PARETO,
831 FIO_RAND_DIST_GAUSS,
832 FIO_RAND_DIST_ZONED,
833 FIO_RAND_DIST_ZONED_ABS,
834};
835
836#define FIO_DEF_ZIPF 1.1
837#define FIO_DEF_PARETO 0.2
838
839enum {
840 FIO_RAND_GEN_TAUSWORTHE = 0,
841 FIO_RAND_GEN_LFSR,
842 FIO_RAND_GEN_TAUSWORTHE64,
843};
844
845enum {
846 FIO_CPUS_SHARED = 0,
847 FIO_CPUS_SPLIT,
848};
849
850extern void exec_trigger(const char *);
851extern void check_trigger_file(void);
852
853#endif
fio - Flexible IO Tester