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fio: fix aio trim completion latencies
[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
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#ifndef MPOL_LOCAL
61#define MPOL_LOCAL 4
62#endif
63#endif
64
65#ifdef CONFIG_CUDA
66#include <cuda.h>
67#endif
68
69struct fio_sem;
70
71/*
72 * offset generator types
73 */
74enum {
75 RW_SEQ_SEQ = 0,
76 RW_SEQ_IDENT,
77};
78
79enum {
80 __TD_F_VER_BACKLOG = 0,
81 __TD_F_TRIM_BACKLOG,
82 __TD_F_READ_IOLOG,
83 __TD_F_REFILL_BUFFERS,
84 __TD_F_SCRAMBLE_BUFFERS,
85 __TD_F_DO_VERIFY,
86 __TD_F_PROFILE_OPS,
87 __TD_F_COMPRESS,
88 __TD_F_COMPRESS_LOG,
89 __TD_F_VSTATE_SAVED,
90 __TD_F_NEED_LOCK,
91 __TD_F_CHILD,
92 __TD_F_NO_PROGRESS,
93 __TD_F_REGROW_LOGS,
94 __TD_F_MMAP_KEEP,
95 __TD_F_DIRS_CREATED,
96 __TD_F_CHECK_RATE,
97 __TD_F_LAST, /* not a real bit, keep last */
98};
99
100enum {
101 TD_F_VER_BACKLOG = 1U << __TD_F_VER_BACKLOG,
102 TD_F_TRIM_BACKLOG = 1U << __TD_F_TRIM_BACKLOG,
103 TD_F_READ_IOLOG = 1U << __TD_F_READ_IOLOG,
104 TD_F_REFILL_BUFFERS = 1U << __TD_F_REFILL_BUFFERS,
105 TD_F_SCRAMBLE_BUFFERS = 1U << __TD_F_SCRAMBLE_BUFFERS,
106 TD_F_DO_VERIFY = 1U << __TD_F_DO_VERIFY,
107 TD_F_PROFILE_OPS = 1U << __TD_F_PROFILE_OPS,
108 TD_F_COMPRESS = 1U << __TD_F_COMPRESS,
109 TD_F_COMPRESS_LOG = 1U << __TD_F_COMPRESS_LOG,
110 TD_F_VSTATE_SAVED = 1U << __TD_F_VSTATE_SAVED,
111 TD_F_NEED_LOCK = 1U << __TD_F_NEED_LOCK,
112 TD_F_CHILD = 1U << __TD_F_CHILD,
113 TD_F_NO_PROGRESS = 1U << __TD_F_NO_PROGRESS,
114 TD_F_REGROW_LOGS = 1U << __TD_F_REGROW_LOGS,
115 TD_F_MMAP_KEEP = 1U << __TD_F_MMAP_KEEP,
116 TD_F_DIRS_CREATED = 1U << __TD_F_DIRS_CREATED,
117 TD_F_CHECK_RATE = 1U << __TD_F_CHECK_RATE,
118};
119
120enum {
121 FIO_RAND_BS_OFF = 0,
122 FIO_RAND_BS1_OFF,
123 FIO_RAND_BS2_OFF,
124 FIO_RAND_VER_OFF,
125 FIO_RAND_MIX_OFF,
126 FIO_RAND_FILE_OFF,
127 FIO_RAND_BLOCK_OFF,
128 FIO_RAND_FILE_SIZE_OFF,
129 FIO_RAND_TRIM_OFF,
130 FIO_RAND_BUF_OFF,
131 FIO_RAND_SEQ_RAND_READ_OFF,
132 FIO_RAND_SEQ_RAND_WRITE_OFF,
133 FIO_RAND_SEQ_RAND_TRIM_OFF,
134 FIO_RAND_START_DELAY,
135 FIO_DEDUPE_OFF,
136 FIO_RAND_POISSON_OFF,
137 FIO_RAND_ZONE_OFF,
138 FIO_RAND_POISSON2_OFF,
139 FIO_RAND_POISSON3_OFF,
140 FIO_RAND_NR_OFFS,
141};
142
143enum {
144 IO_MODE_INLINE = 0,
145 IO_MODE_OFFLOAD = 1,
146
147 RATE_PROCESS_LINEAR = 0,
148 RATE_PROCESS_POISSON = 1,
149};
150
151enum {
152 F_ADV_NONE = 0,
153 F_ADV_TYPE,
154 F_ADV_RANDOM,
155 F_ADV_SEQUENTIAL,
156};
157
158/*
159 * Per-thread/process specific data. Only used for the network client
160 * for now.
161 */
162void sk_out_assign(struct sk_out *);
163void sk_out_drop(void);
164
165struct zone_split_index {
166 uint8_t size_perc;
167 uint8_t size_perc_prev;
168 uint64_t size;
169 uint64_t size_prev;
170};
171
172#define FIO_MAX_OPEN_ZBD_ZONES 128
173
174/*
175 * This describes a single thread/process executing a fio job.
176 */
177struct thread_data {
178 struct flist_head opt_list;
179 unsigned long flags;
180 struct thread_options o;
181 void *eo;
182 pthread_t thread;
183 unsigned int thread_number;
184 unsigned int subjob_number;
185 unsigned int groupid;
186 struct thread_stat ts __attribute__ ((aligned(8)));
187
188 int client_type;
189
190 struct io_log *slat_log;
191 struct io_log *clat_log;
192 struct io_log *clat_hist_log;
193 struct io_log *lat_log;
194 struct io_log *bw_log;
195 struct io_log *iops_log;
196
197 struct workqueue log_compress_wq;
198
199 struct thread_data *parent;
200
201 uint64_t stat_io_bytes[DDIR_RWDIR_CNT];
202 struct timespec bw_sample_time;
203
204 uint64_t stat_io_blocks[DDIR_RWDIR_CNT];
205 struct timespec iops_sample_time;
206
207 volatile int update_rusage;
208 struct fio_sem *rusage_sem;
209 struct rusage ru_start;
210 struct rusage ru_end;
211
212 struct fio_file **files;
213 unsigned char *file_locks;
214 unsigned int files_size;
215 unsigned int files_index;
216 unsigned int nr_open_files;
217 unsigned int nr_done_files;
218 union {
219 unsigned int next_file;
220 struct frand_state next_file_state;
221 };
222 union {
223 struct zipf_state next_file_zipf;
224 struct gauss_state next_file_gauss;
225 };
226 union {
227 double zipf_theta;
228 double pareto_h;
229 double gauss_dev;
230 };
231 int error;
232 int sig;
233 int done;
234 int stop_io;
235 pid_t pid;
236 char *orig_buffer;
237 size_t orig_buffer_size;
238 volatile int runstate;
239 volatile bool terminate;
240 bool last_was_sync;
241 enum fio_ddir last_ddir;
242
243 int mmapfd;
244
245 void *iolog_buf;
246 FILE *iolog_f;
247
248 uint64_t rand_seeds[FIO_RAND_NR_OFFS];
249
250 struct frand_state bsrange_state[DDIR_RWDIR_CNT];
251 struct frand_state verify_state;
252 struct frand_state trim_state;
253 struct frand_state delay_state;
254
255 struct frand_state buf_state;
256 struct frand_state buf_state_prev;
257 struct frand_state dedupe_state;
258 struct frand_state zone_state;
259
260 struct zone_split_index **zone_state_index;
261
262 unsigned int verify_batch;
263 unsigned int trim_batch;
264
265 struct thread_io_list *vstate;
266
267 int shm_id;
268
269 /*
270 * IO engine hooks, contains everything needed to submit an io_u
271 * to any of the available IO engines.
272 */
273 struct ioengine_ops *io_ops;
274 int io_ops_init;
275
276 /*
277 * IO engine private data and dlhandle.
278 */
279 void *io_ops_data;
280 void *io_ops_dlhandle;
281
282 /*
283 * Queue depth of io_u's that fio MIGHT do
284 */
285 unsigned int cur_depth;
286
287 /*
288 * io_u's about to be committed
289 */
290 unsigned int io_u_queued;
291
292 /*
293 * io_u's submitted but not completed yet
294 */
295 unsigned int io_u_in_flight;
296
297 /*
298 * List of free and busy io_u's
299 */
300 struct io_u_ring io_u_requeues;
301 struct io_u_queue io_u_freelist;
302 struct io_u_queue io_u_all;
303 pthread_mutex_t io_u_lock;
304 pthread_cond_t free_cond;
305
306 /*
307 * async verify offload
308 */
309 struct flist_head verify_list;
310 pthread_t *verify_threads;
311 unsigned int nr_verify_threads;
312 pthread_cond_t verify_cond;
313 int verify_thread_exit;
314
315 /*
316 * Rate state
317 */
318 uint64_t rate_bps[DDIR_RWDIR_CNT];
319 uint64_t rate_next_io_time[DDIR_RWDIR_CNT];
320 unsigned long rate_bytes[DDIR_RWDIR_CNT];
321 unsigned long rate_blocks[DDIR_RWDIR_CNT];
322 unsigned long long rate_io_issue_bytes[DDIR_RWDIR_CNT];
323 struct timespec lastrate[DDIR_RWDIR_CNT];
324 int64_t last_usec[DDIR_RWDIR_CNT];
325 struct frand_state poisson_state[DDIR_RWDIR_CNT];
326
327 /*
328 * Enforced rate submission/completion workqueue
329 */
330 struct workqueue io_wq;
331
332 uint64_t total_io_size;
333 uint64_t fill_device_size;
334
335 /*
336 * Issue side
337 */
338 uint64_t io_issues[DDIR_RWDIR_CNT];
339 uint64_t io_issue_bytes[DDIR_RWDIR_CNT];
340 uint64_t loops;
341
342 /*
343 * Completions
344 */
345 uint64_t io_blocks[DDIR_RWDIR_CNT];
346 uint64_t this_io_blocks[DDIR_RWDIR_CNT];
347 uint64_t io_bytes[DDIR_RWDIR_CNT];
348 uint64_t this_io_bytes[DDIR_RWDIR_CNT];
349 uint64_t io_skip_bytes;
350 uint64_t zone_bytes;
351 struct fio_sem *sem;
352 uint64_t bytes_done[DDIR_RWDIR_CNT];
353
354 /*
355 * State for random io, a bitmap of blocks done vs not done
356 */
357 struct frand_state random_state;
358
359 struct timespec start; /* start of this loop */
360 struct timespec epoch; /* time job was started */
361 unsigned long long unix_epoch; /* Time job was started, unix epoch based. */
362 struct timespec last_issue;
363 long time_offset;
364 struct timespec ts_cache;
365 struct timespec terminate_time;
366 unsigned int ts_cache_nr;
367 unsigned int ts_cache_mask;
368 bool ramp_time_over;
369
370 /*
371 * Time since last latency_window was started
372 */
373 struct timespec latency_ts;
374 unsigned int latency_qd;
375 unsigned int latency_qd_high;
376 unsigned int latency_qd_low;
377 unsigned int latency_failed;
378 uint64_t latency_ios;
379 int latency_end_run;
380
381 /*
382 * read/write mixed workload state
383 */
384 struct frand_state rwmix_state;
385 unsigned long rwmix_issues;
386 enum fio_ddir rwmix_ddir;
387 unsigned int ddir_seq_nr;
388
389 /*
390 * rand/seq mixed workload state
391 */
392 struct frand_state seq_rand_state[DDIR_RWDIR_CNT];
393
394 /*
395 * IO history logs for verification. We use a tree for sorting,
396 * if we are overwriting. Otherwise just use a fifo.
397 */
398 struct rb_root io_hist_tree;
399 struct flist_head io_hist_list;
400 unsigned long io_hist_len;
401
402 /*
403 * For IO replaying
404 */
405 struct flist_head io_log_list;
406 FILE *io_log_rfile;
407 unsigned int io_log_current;
408 unsigned int io_log_checkmark;
409 unsigned int io_log_highmark;
410 struct timespec io_log_highmark_time;
411
412 /*
413 * For tracking/handling discards
414 */
415 struct flist_head trim_list;
416 unsigned long trim_entries;
417
418 /*
419 * for fileservice, how often to switch to a new file
420 */
421 unsigned int file_service_nr;
422 unsigned int file_service_left;
423 struct fio_file *file_service_file;
424
425 unsigned int sync_file_range_nr;
426
427 /*
428 * For generating file sizes
429 */
430 struct frand_state file_size_state;
431
432 /*
433 * Error counts
434 */
435 unsigned int total_err_count;
436 int first_error;
437
438 struct fio_flow *flow;
439
440 /*
441 * Can be overloaded by profiles
442 */
443 struct prof_io_ops prof_io_ops;
444 void *prof_data;
445
446 void *pinned_mem;
447
448 struct steadystate_data ss;
449
450 char verror[FIO_VERROR_SIZE];
451
452#ifdef CONFIG_CUDA
453 /*
454 * for GPU memory management
455 */
456 int gpu_dev_cnt;
457 int gpu_dev_id;
458 CUdevice cu_dev;
459 CUcontext cu_ctx;
460 CUdeviceptr dev_mem_ptr;
461#endif
462
463};
464
465/*
466 * when should interactive ETA output be generated
467 */
468enum {
469 FIO_ETA_AUTO,
470 FIO_ETA_ALWAYS,
471 FIO_ETA_NEVER,
472};
473
474#define __td_verror(td, err, msg, func) \
475 do { \
476 unsigned int ____e = (err); \
477 if ((td)->error) \
478 break; \
479 (td)->error = ____e; \
480 if (!(td)->first_error) \
481 nowarn_snprintf(td->verror, sizeof(td->verror), \
482 "file:%s:%d, func=%s, error=%s", \
483 __FILE__, __LINE__, (func), (msg)); \
484 } while (0)
485
486
487#define td_clear_error(td) do { \
488 (td)->error = 0; \
489 if ((td)->parent) \
490 (td)->parent->error = 0; \
491} while (0)
492
493#define td_verror(td, err, func) do { \
494 __td_verror((td), (err), strerror((err)), (func)); \
495 if ((td)->parent) \
496 __td_verror((td)->parent, (err), strerror((err)), (func)); \
497} while (0)
498
499#define td_vmsg(td, err, msg, func) do { \
500 __td_verror((td), (err), (msg), (func)); \
501 if ((td)->parent) \
502 __td_verror((td)->parent, (err), (msg), (func)); \
503} while (0)
504
505#define __fio_stringify_1(x) #x
506#define __fio_stringify(x) __fio_stringify_1(x)
507
508extern bool exitall_on_terminate;
509extern unsigned int thread_number;
510extern unsigned int stat_number;
511extern int shm_id;
512extern int groupid;
513extern int output_format;
514extern int append_terse_output;
515extern int temp_stall_ts;
516extern uintptr_t page_mask, page_size;
517extern bool read_only;
518extern int eta_print;
519extern int eta_new_line;
520extern unsigned int eta_interval_msec;
521extern unsigned long done_secs;
522extern int fio_gtod_offload;
523extern int fio_gtod_cpu;
524extern enum fio_cs fio_clock_source;
525extern int fio_clock_source_set;
526extern int warnings_fatal;
527extern int terse_version;
528extern bool is_backend;
529extern bool is_local_backend;
530extern int nr_clients;
531extern bool log_syslog;
532extern int status_interval;
533extern const char fio_version_string[];
534extern char *trigger_file;
535extern char *trigger_cmd;
536extern char *trigger_remote_cmd;
537extern long long trigger_timeout;
538extern char *aux_path;
539
540extern struct thread_data *threads;
541
542static inline bool is_running_backend(void)
543{
544 return is_backend || is_local_backend;
545}
546
547extern bool eta_time_within_slack(unsigned int time);
548
549static inline void fio_ro_check(const struct thread_data *td, struct io_u *io_u)
550{
551 assert(!(io_u->ddir == DDIR_WRITE && !td_write(td)) &&
552 !(io_u->ddir == DDIR_TRIM && !td_trim(td)));
553}
554
555#define REAL_MAX_JOBS 4096
556
557static inline bool should_fsync(struct thread_data *td)
558{
559 if (td->last_was_sync)
560 return false;
561 if (td_write(td) || td->o.override_sync)
562 return true;
563
564 return false;
565}
566
567/*
568 * Init/option functions
569 */
570extern int __must_check fio_init_options(void);
571extern int __must_check parse_options(int, char **);
572extern int parse_jobs_ini(char *, int, int, int);
573extern int parse_cmd_line(int, char **, int);
574extern int fio_backend(struct sk_out *);
575extern void reset_fio_state(void);
576extern void clear_io_state(struct thread_data *, int);
577extern int fio_options_parse(struct thread_data *, char **, int);
578extern void fio_keywords_init(void);
579extern void fio_keywords_exit(void);
580extern int fio_cmd_option_parse(struct thread_data *, const char *, char *);
581extern int fio_cmd_ioengine_option_parse(struct thread_data *, const char *, char *);
582extern void fio_fill_default_options(struct thread_data *);
583extern int fio_show_option_help(const char *);
584extern void fio_options_set_ioengine_opts(struct option *long_options, struct thread_data *td);
585extern void fio_options_dup_and_init(struct option *);
586extern char *fio_option_dup_subs(const char *);
587extern void fio_options_mem_dupe(struct thread_data *);
588extern void td_fill_rand_seeds(struct thread_data *);
589extern void td_fill_verify_state_seed(struct thread_data *);
590extern void add_job_opts(const char **, int);
591extern int ioengine_load(struct thread_data *);
592extern bool parse_dryrun(void);
593extern int fio_running_or_pending_io_threads(void);
594extern int fio_set_fd_nonblocking(int, const char *);
595extern void sig_show_status(int sig);
596extern struct thread_data *get_global_options(void);
597
598extern uintptr_t page_mask;
599extern uintptr_t page_size;
600extern int initialize_fio(char *envp[]);
601extern void deinitialize_fio(void);
602
603#define FIO_GETOPT_JOB 0x89000000
604#define FIO_GETOPT_IOENGINE 0x98000000
605#define FIO_NR_OPTIONS (FIO_MAX_OPTS + 128)
606
607/*
608 * ETA/status stuff
609 */
610extern void print_thread_status(void);
611extern void print_status_init(int);
612extern char *fio_uint_to_kmg(unsigned int val);
613
614/*
615 * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it
616 * will never back again. It may cycle between running/verififying/fsyncing.
617 * Once the thread reaches TD_EXITED, it is just waiting for the core to
618 * reap it.
619 */
620enum {
621 TD_NOT_CREATED = 0,
622 TD_CREATED,
623 TD_INITIALIZED,
624 TD_RAMP,
625 TD_SETTING_UP,
626 TD_RUNNING,
627 TD_PRE_READING,
628 TD_VERIFYING,
629 TD_FSYNCING,
630 TD_FINISHING,
631 TD_EXITED,
632 TD_REAPED,
633 TD_LAST,
634 TD_NR,
635};
636
637#define TD_ENG_FLAG_SHIFT 17
638#define TD_ENG_FLAG_MASK ((1U << 17) - 1)
639
640static inline void td_set_ioengine_flags(struct thread_data *td)
641{
642 td->flags = (~(TD_ENG_FLAG_MASK << TD_ENG_FLAG_SHIFT) & td->flags) |
643 (td->io_ops->flags << TD_ENG_FLAG_SHIFT);
644}
645
646static inline bool td_ioengine_flagged(struct thread_data *td,
647 enum fio_ioengine_flags flags)
648{
649 return ((td->flags >> TD_ENG_FLAG_SHIFT) & flags) != 0;
650}
651
652extern void td_set_runstate(struct thread_data *, int);
653extern int td_bump_runstate(struct thread_data *, int);
654extern void td_restore_runstate(struct thread_data *, int);
655extern const char *runstate_to_name(int runstate);
656
657/*
658 * Allow 60 seconds for a job to quit on its own, otherwise reap with
659 * a vengeance.
660 */
661#define FIO_REAP_TIMEOUT 300
662
663#define TERMINATE_ALL (-1U)
664extern void fio_terminate_threads(unsigned int);
665extern void fio_mark_td_terminate(struct thread_data *);
666
667/*
668 * Memory helpers
669 */
670extern int __must_check fio_pin_memory(struct thread_data *);
671extern void fio_unpin_memory(struct thread_data *);
672extern int __must_check allocate_io_mem(struct thread_data *);
673extern void free_io_mem(struct thread_data *);
674extern void free_threads_shm(void);
675
676#ifdef FIO_INTERNAL
677#define PTR_ALIGN(ptr, mask) \
678 (char *) (((uintptr_t) (ptr) + (mask)) & ~(mask))
679#endif
680
681/*
682 * Reset stats after ramp time completes
683 */
684extern void reset_all_stats(struct thread_data *);
685
686extern int io_queue_event(struct thread_data *td, struct io_u *io_u, int *ret,
687 enum fio_ddir ddir, uint64_t *bytes_issued, int from_verify,
688 struct timespec *comp_time);
689
690/*
691 * Latency target helpers
692 */
693extern void lat_target_check(struct thread_data *);
694extern void lat_target_init(struct thread_data *);
695extern void lat_target_reset(struct thread_data *);
696
697/*
698 * Iterates all threads/processes within all the defined jobs
699 */
700#define for_each_td(td, i) \
701 for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++)
702#define for_each_file(td, f, i) \
703 if ((td)->files_index) \
704 for ((i) = 0, (f) = (td)->files[0]; \
705 (i) < (td)->o.nr_files && ((f) = (td)->files[i]) != NULL; \
706 (i)++)
707
708#define fio_assert(td, cond) do { \
709 if (!(cond)) { \
710 int *__foo = NULL; \
711 fprintf(stderr, "file:%s:%d, assert %s failed\n", __FILE__, __LINE__, #cond); \
712 td_set_runstate((td), TD_EXITED); \
713 (td)->error = EFAULT; \
714 *__foo = 0; \
715 } \
716} while (0)
717
718static inline bool fio_fill_issue_time(struct thread_data *td)
719{
720 if (td->o.read_iolog_file ||
721 !td->o.disable_clat || !td->o.disable_slat || !td->o.disable_bw)
722 return true;
723
724 return false;
725}
726
727static inline bool option_check_rate(struct thread_data *td, enum fio_ddir ddir)
728{
729 struct thread_options *o = &td->o;
730
731 /*
732 * If some rate setting was given, we need to check it
733 */
734 if (o->rate[ddir] || o->ratemin[ddir] || o->rate_iops[ddir] ||
735 o->rate_iops_min[ddir])
736 return true;
737
738 return false;
739}
740
741static inline bool __should_check_rate(struct thread_data *td)
742{
743 return (td->flags & TD_F_CHECK_RATE) != 0;
744}
745
746static inline bool should_check_rate(struct thread_data *td)
747{
748 if (!__should_check_rate(td))
749 return false;
750
751 return ddir_rw_sum(td->bytes_done) != 0;
752}
753
754static inline unsigned long long td_max_bs(struct thread_data *td)
755{
756 unsigned long long max_bs;
757
758 max_bs = max(td->o.max_bs[DDIR_READ], td->o.max_bs[DDIR_WRITE]);
759 return max(td->o.max_bs[DDIR_TRIM], max_bs);
760}
761
762static inline unsigned long long td_min_bs(struct thread_data *td)
763{
764 unsigned long long min_bs;
765
766 min_bs = min(td->o.min_bs[DDIR_READ], td->o.min_bs[DDIR_WRITE]);
767 return min(td->o.min_bs[DDIR_TRIM], min_bs);
768}
769
770static inline bool td_async_processing(struct thread_data *td)
771{
772 return (td->flags & TD_F_NEED_LOCK) != 0;
773}
774
775static inline bool td_offload_overlap(struct thread_data *td)
776{
777 return td->o.serialize_overlap && td->o.io_submit_mode == IO_MODE_OFFLOAD;
778}
779
780/*
781 * We currently only need to do locking if we have verifier threads
782 * accessing our internal structures too
783 */
784static inline void __td_io_u_lock(struct thread_data *td)
785{
786 pthread_mutex_lock(&td->io_u_lock);
787}
788
789static inline void __td_io_u_unlock(struct thread_data *td)
790{
791 pthread_mutex_unlock(&td->io_u_lock);
792}
793
794static inline void td_io_u_free_notify(struct thread_data *td)
795{
796 if (td_async_processing(td))
797 pthread_cond_signal(&td->free_cond);
798}
799
800static inline void td_flags_clear(struct thread_data *td, unsigned int *flags,
801 unsigned int value)
802{
803 if (!td_async_processing(td))
804 *flags &= ~value;
805 else
806 __sync_fetch_and_and(flags, ~value);
807}
808
809static inline void td_flags_set(struct thread_data *td, unsigned int *flags,
810 unsigned int value)
811{
812 if (!td_async_processing(td))
813 *flags |= value;
814 else
815 __sync_fetch_and_or(flags, value);
816}
817
818extern const char *fio_get_arch_string(int);
819extern const char *fio_get_os_string(int);
820
821enum {
822 __FIO_OUTPUT_TERSE = 0,
823 __FIO_OUTPUT_JSON = 1,
824 __FIO_OUTPUT_NORMAL = 2,
825 __FIO_OUTPUT_JSON_PLUS = 3,
826 FIO_OUTPUT_NR = 4,
827
828 FIO_OUTPUT_TERSE = 1U << __FIO_OUTPUT_TERSE,
829 FIO_OUTPUT_JSON = 1U << __FIO_OUTPUT_JSON,
830 FIO_OUTPUT_NORMAL = 1U << __FIO_OUTPUT_NORMAL,
831 FIO_OUTPUT_JSON_PLUS = 1U << __FIO_OUTPUT_JSON_PLUS,
832};
833
834enum {
835 FIO_RAND_DIST_RANDOM = 0,
836 FIO_RAND_DIST_ZIPF,
837 FIO_RAND_DIST_PARETO,
838 FIO_RAND_DIST_GAUSS,
839 FIO_RAND_DIST_ZONED,
840 FIO_RAND_DIST_ZONED_ABS,
841};
842
843#define FIO_DEF_ZIPF 1.1
844#define FIO_DEF_PARETO 0.2
845
846enum {
847 FIO_RAND_GEN_TAUSWORTHE = 0,
848 FIO_RAND_GEN_LFSR,
849 FIO_RAND_GEN_TAUSWORTHE64,
850};
851
852enum {
853 FIO_CPUS_SHARED = 0,
854 FIO_CPUS_SPLIT,
855};
856
857extern void exec_trigger(const char *);
858extern void check_trigger_file(void);
859
860extern bool in_flight_overlap(struct io_u_queue *q, struct io_u *io_u);
861extern pthread_mutex_t overlap_check;
862
863#endif
fio - Flexible IO Tester