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Merge branch 'appveyor-artifacts' of https://github.com/vincentkfu/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 "lib/memalign.h"
40#include "smalloc.h"
41#include "client.h"
42#include "server.h"
43#include "stat.h"
44#include "flow.h"
45#include "io_u.h"
46#include "io_u_queue.h"
47#include "workqueue.h"
48#include "steadystate.h"
49#include "lib/nowarn_snprintf.h"
50
51#ifdef CONFIG_SOLARISAIO
52#include <sys/asynch.h>
53#endif
54
55#ifdef CONFIG_LIBNUMA
56#include <linux/mempolicy.h>
57#include <numa.h>
58
59/*
60 * "local" is pseudo-policy
61 */
62#ifndef MPOL_LOCAL
63#define MPOL_LOCAL 4
64#endif
65#endif
66
67#ifdef CONFIG_CUDA
68#include <cuda.h>
69#endif
70
71struct fio_sem;
72
73/*
74 * offset generator types
75 */
76enum {
77 RW_SEQ_SEQ = 0,
78 RW_SEQ_IDENT,
79};
80
81enum {
82 __TD_F_VER_BACKLOG = 0,
83 __TD_F_TRIM_BACKLOG,
84 __TD_F_READ_IOLOG,
85 __TD_F_REFILL_BUFFERS,
86 __TD_F_SCRAMBLE_BUFFERS,
87 __TD_F_DO_VERIFY,
88 __TD_F_PROFILE_OPS,
89 __TD_F_COMPRESS,
90 __TD_F_COMPRESS_LOG,
91 __TD_F_VSTATE_SAVED,
92 __TD_F_NEED_LOCK,
93 __TD_F_CHILD,
94 __TD_F_NO_PROGRESS,
95 __TD_F_REGROW_LOGS,
96 __TD_F_MMAP_KEEP,
97 __TD_F_DIRS_CREATED,
98 __TD_F_CHECK_RATE,
99 __TD_F_LAST, /* not a real bit, keep last */
100};
101
102enum {
103 TD_F_VER_BACKLOG = 1U << __TD_F_VER_BACKLOG,
104 TD_F_TRIM_BACKLOG = 1U << __TD_F_TRIM_BACKLOG,
105 TD_F_READ_IOLOG = 1U << __TD_F_READ_IOLOG,
106 TD_F_REFILL_BUFFERS = 1U << __TD_F_REFILL_BUFFERS,
107 TD_F_SCRAMBLE_BUFFERS = 1U << __TD_F_SCRAMBLE_BUFFERS,
108 TD_F_DO_VERIFY = 1U << __TD_F_DO_VERIFY,
109 TD_F_PROFILE_OPS = 1U << __TD_F_PROFILE_OPS,
110 TD_F_COMPRESS = 1U << __TD_F_COMPRESS,
111 TD_F_COMPRESS_LOG = 1U << __TD_F_COMPRESS_LOG,
112 TD_F_VSTATE_SAVED = 1U << __TD_F_VSTATE_SAVED,
113 TD_F_NEED_LOCK = 1U << __TD_F_NEED_LOCK,
114 TD_F_CHILD = 1U << __TD_F_CHILD,
115 TD_F_NO_PROGRESS = 1U << __TD_F_NO_PROGRESS,
116 TD_F_REGROW_LOGS = 1U << __TD_F_REGROW_LOGS,
117 TD_F_MMAP_KEEP = 1U << __TD_F_MMAP_KEEP,
118 TD_F_DIRS_CREATED = 1U << __TD_F_DIRS_CREATED,
119 TD_F_CHECK_RATE = 1U << __TD_F_CHECK_RATE,
120};
121
122enum {
123 FIO_RAND_BS_OFF = 0,
124 FIO_RAND_BS1_OFF,
125 FIO_RAND_BS2_OFF,
126 FIO_RAND_VER_OFF,
127 FIO_RAND_MIX_OFF,
128 FIO_RAND_FILE_OFF,
129 FIO_RAND_BLOCK_OFF,
130 FIO_RAND_FILE_SIZE_OFF,
131 FIO_RAND_TRIM_OFF,
132 FIO_RAND_BUF_OFF,
133 FIO_RAND_SEQ_RAND_READ_OFF,
134 FIO_RAND_SEQ_RAND_WRITE_OFF,
135 FIO_RAND_SEQ_RAND_TRIM_OFF,
136 FIO_RAND_START_DELAY,
137 FIO_DEDUPE_OFF,
138 FIO_RAND_POISSON_OFF,
139 FIO_RAND_ZONE_OFF,
140 FIO_RAND_POISSON2_OFF,
141 FIO_RAND_POISSON3_OFF,
142 FIO_RAND_PRIO_CMDS,
143 FIO_RAND_NR_OFFS,
144};
145
146enum {
147 IO_MODE_INLINE = 0,
148 IO_MODE_OFFLOAD = 1,
149
150 RATE_PROCESS_LINEAR = 0,
151 RATE_PROCESS_POISSON = 1,
152};
153
154enum {
155 F_ADV_NONE = 0,
156 F_ADV_TYPE,
157 F_ADV_RANDOM,
158 F_ADV_SEQUENTIAL,
159};
160
161/*
162 * Per-thread/process specific data. Only used for the network client
163 * for now.
164 */
165void sk_out_assign(struct sk_out *);
166void sk_out_drop(void);
167
168struct zone_split_index {
169 uint8_t size_perc;
170 uint8_t size_perc_prev;
171 uint64_t size;
172 uint64_t size_prev;
173};
174
175/*
176 * This describes a single thread/process executing a fio job.
177 */
178struct thread_data {
179 struct flist_head opt_list;
180 unsigned long flags;
181 struct thread_options o;
182 void *eo;
183 pthread_t thread;
184 unsigned int thread_number;
185 unsigned int subjob_number;
186 unsigned int groupid;
187 struct thread_stat ts __attribute__ ((aligned(8)));
188
189 int client_type;
190
191 struct io_log *slat_log;
192 struct io_log *clat_log;
193 struct io_log *clat_hist_log;
194 struct io_log *lat_log;
195 struct io_log *bw_log;
196 struct io_log *iops_log;
197
198 struct workqueue log_compress_wq;
199
200 struct thread_data *parent;
201
202 uint64_t stat_io_bytes[DDIR_RWDIR_CNT];
203 struct timespec bw_sample_time;
204
205 uint64_t stat_io_blocks[DDIR_RWDIR_CNT];
206 struct timespec iops_sample_time;
207
208 volatile int update_rusage;
209 struct fio_sem *rusage_sem;
210 struct rusage ru_start;
211 struct rusage ru_end;
212
213 struct fio_file **files;
214 unsigned char *file_locks;
215 unsigned int files_size;
216 unsigned int files_index;
217 unsigned int nr_open_files;
218 unsigned int nr_done_files;
219 union {
220 unsigned int next_file;
221 struct frand_state next_file_state;
222 };
223 union {
224 struct zipf_state next_file_zipf;
225 struct gauss_state next_file_gauss;
226 };
227 union {
228 double zipf_theta;
229 double pareto_h;
230 double gauss_dev;
231 };
232 int error;
233 int sig;
234 int done;
235 int stop_io;
236 pid_t pid;
237 char *orig_buffer;
238 size_t orig_buffer_size;
239 volatile int runstate;
240 volatile bool terminate;
241 bool last_was_sync;
242 enum fio_ddir last_ddir;
243
244 int mmapfd;
245
246 void *iolog_buf;
247 FILE *iolog_f;
248
249 uint64_t rand_seeds[FIO_RAND_NR_OFFS];
250
251 struct frand_state bsrange_state[DDIR_RWDIR_CNT];
252 struct frand_state verify_state;
253 struct frand_state trim_state;
254 struct frand_state delay_state;
255
256 struct frand_state buf_state;
257 struct frand_state buf_state_prev;
258 struct frand_state dedupe_state;
259 struct frand_state zone_state;
260 struct frand_state prio_state;
261
262 struct zone_split_index **zone_state_index;
263
264 unsigned int verify_batch;
265 unsigned int trim_batch;
266
267 struct thread_io_list *vstate;
268
269 int shm_id;
270
271 /*
272 * IO engine hooks, contains everything needed to submit an io_u
273 * to any of the available IO engines.
274 */
275 struct ioengine_ops *io_ops;
276 int io_ops_init;
277
278 /*
279 * IO engine private data and dlhandle.
280 */
281 void *io_ops_data;
282 void *io_ops_dlhandle;
283
284 /*
285 * Queue depth of io_u's that fio MIGHT do
286 */
287 unsigned int cur_depth;
288
289 /*
290 * io_u's about to be committed
291 */
292 unsigned int io_u_queued;
293
294 /*
295 * io_u's submitted but not completed yet
296 */
297 unsigned int io_u_in_flight;
298
299 /*
300 * List of free and busy io_u's
301 */
302 struct io_u_ring io_u_requeues;
303 struct io_u_queue io_u_freelist;
304 struct io_u_queue io_u_all;
305 pthread_mutex_t io_u_lock;
306 pthread_cond_t free_cond;
307
308 /*
309 * async verify offload
310 */
311 struct flist_head verify_list;
312 pthread_t *verify_threads;
313 unsigned int nr_verify_threads;
314 pthread_cond_t verify_cond;
315 int verify_thread_exit;
316
317 /*
318 * Rate state
319 */
320 uint64_t rate_bps[DDIR_RWDIR_CNT];
321 uint64_t rate_next_io_time[DDIR_RWDIR_CNT];
322 unsigned long rate_bytes[DDIR_RWDIR_CNT];
323 unsigned long rate_blocks[DDIR_RWDIR_CNT];
324 unsigned long long rate_io_issue_bytes[DDIR_RWDIR_CNT];
325 struct timespec lastrate[DDIR_RWDIR_CNT];
326 int64_t last_usec[DDIR_RWDIR_CNT];
327 struct frand_state poisson_state[DDIR_RWDIR_CNT];
328
329 /*
330 * Enforced rate submission/completion workqueue
331 */
332 struct workqueue io_wq;
333
334 uint64_t total_io_size;
335 uint64_t fill_device_size;
336
337 /*
338 * Issue side
339 */
340 uint64_t io_issues[DDIR_RWDIR_CNT];
341 uint64_t io_issue_bytes[DDIR_RWDIR_CNT];
342 uint64_t loops;
343
344 /*
345 * Completions
346 */
347 uint64_t io_blocks[DDIR_RWDIR_CNT];
348 uint64_t this_io_blocks[DDIR_RWDIR_CNT];
349 uint64_t io_bytes[DDIR_RWDIR_CNT];
350 uint64_t this_io_bytes[DDIR_RWDIR_CNT];
351 uint64_t io_skip_bytes;
352 uint64_t zone_bytes;
353 struct fio_sem *sem;
354 uint64_t bytes_done[DDIR_RWDIR_CNT];
355
356 /*
357 * State for random io, a bitmap of blocks done vs not done
358 */
359 struct frand_state random_state;
360
361 struct timespec start; /* start of this loop */
362 struct timespec epoch; /* time job was started */
363 unsigned long long unix_epoch; /* Time job was started, unix epoch based. */
364 struct timespec last_issue;
365 long time_offset;
366 struct timespec ts_cache;
367 struct timespec terminate_time;
368 unsigned int ts_cache_nr;
369 unsigned int ts_cache_mask;
370 bool ramp_time_over;
371
372 /*
373 * Time since last latency_window was started
374 */
375 struct timespec latency_ts;
376 unsigned int latency_qd;
377 unsigned int latency_qd_high;
378 unsigned int latency_qd_low;
379 unsigned int latency_failed;
380 uint64_t latency_ios;
381 int latency_end_run;
382
383 /*
384 * read/write mixed workload state
385 */
386 struct frand_state rwmix_state;
387 unsigned long rwmix_issues;
388 enum fio_ddir rwmix_ddir;
389 unsigned int ddir_seq_nr;
390
391 /*
392 * rand/seq mixed workload state
393 */
394 struct frand_state seq_rand_state[DDIR_RWDIR_CNT];
395
396 /*
397 * IO history logs for verification. We use a tree for sorting,
398 * if we are overwriting. Otherwise just use a fifo.
399 */
400 struct rb_root io_hist_tree;
401 struct flist_head io_hist_list;
402 unsigned long io_hist_len;
403
404 /*
405 * For IO replaying
406 */
407 struct flist_head io_log_list;
408 FILE *io_log_rfile;
409 unsigned int io_log_current;
410 unsigned int io_log_checkmark;
411 unsigned int io_log_highmark;
412 struct timespec io_log_highmark_time;
413
414 /*
415 * For tracking/handling discards
416 */
417 struct flist_head trim_list;
418 unsigned long trim_entries;
419
420 /*
421 * for fileservice, how often to switch to a new file
422 */
423 unsigned int file_service_nr;
424 unsigned int file_service_left;
425 struct fio_file *file_service_file;
426
427 unsigned int sync_file_range_nr;
428
429 /*
430 * For generating file sizes
431 */
432 struct frand_state file_size_state;
433
434 /*
435 * Error counts
436 */
437 unsigned int total_err_count;
438 int first_error;
439
440 struct fio_flow *flow;
441
442 /*
443 * Can be overloaded by profiles
444 */
445 struct prof_io_ops prof_io_ops;
446 void *prof_data;
447
448 void *pinned_mem;
449
450 struct steadystate_data ss;
451
452 char verror[FIO_VERROR_SIZE];
453
454#ifdef CONFIG_CUDA
455 /*
456 * for GPU memory management
457 */
458 int gpu_dev_cnt;
459 int gpu_dev_id;
460 CUdevice cu_dev;
461 CUcontext cu_ctx;
462 CUdeviceptr dev_mem_ptr;
463#endif
464
465};
466
467/*
468 * when should interactive ETA output be generated
469 */
470enum {
471 FIO_ETA_AUTO,
472 FIO_ETA_ALWAYS,
473 FIO_ETA_NEVER,
474};
475
476#define __td_verror(td, err, msg, func) \
477 do { \
478 unsigned int ____e = (err); \
479 if ((td)->error) \
480 break; \
481 (td)->error = ____e; \
482 if (!(td)->first_error) \
483 nowarn_snprintf(td->verror, sizeof(td->verror), \
484 "file:%s:%d, func=%s, error=%s", \
485 __FILE__, __LINE__, (func), (msg)); \
486 } while (0)
487
488
489#define td_clear_error(td) do { \
490 (td)->error = 0; \
491 if ((td)->parent) \
492 (td)->parent->error = 0; \
493} while (0)
494
495#define td_verror(td, err, func) do { \
496 __td_verror((td), (err), strerror((err)), (func)); \
497 if ((td)->parent) \
498 __td_verror((td)->parent, (err), strerror((err)), (func)); \
499} while (0)
500
501#define td_vmsg(td, err, msg, func) do { \
502 __td_verror((td), (err), (msg), (func)); \
503 if ((td)->parent) \
504 __td_verror((td)->parent, (err), (msg), (func)); \
505} while (0)
506
507#define __fio_stringify_1(x) #x
508#define __fio_stringify(x) __fio_stringify_1(x)
509
510extern bool exitall_on_terminate;
511extern unsigned int thread_number;
512extern unsigned int stat_number;
513extern int shm_id;
514extern int groupid;
515extern int output_format;
516extern int append_terse_output;
517extern int temp_stall_ts;
518extern uintptr_t page_mask, page_size;
519extern bool read_only;
520extern int eta_print;
521extern int eta_new_line;
522extern unsigned int eta_interval_msec;
523extern unsigned long done_secs;
524extern int fio_gtod_offload;
525extern int fio_gtod_cpu;
526extern enum fio_cs fio_clock_source;
527extern int fio_clock_source_set;
528extern int warnings_fatal;
529extern int terse_version;
530extern bool is_backend;
531extern bool is_local_backend;
532extern int nr_clients;
533extern bool log_syslog;
534extern int status_interval;
535extern const char fio_version_string[];
536extern char *trigger_file;
537extern char *trigger_cmd;
538extern char *trigger_remote_cmd;
539extern long long trigger_timeout;
540extern char *aux_path;
541
542extern struct thread_data *threads;
543
544static inline bool is_running_backend(void)
545{
546 return is_backend || is_local_backend;
547}
548
549extern bool eta_time_within_slack(unsigned int time);
550
551static inline void fio_ro_check(const struct thread_data *td, struct io_u *io_u)
552{
553 assert(!(io_u->ddir == DDIR_WRITE && !td_write(td)) &&
554 !(io_u->ddir == DDIR_TRIM && !td_trim(td)));
555}
556
557#define REAL_MAX_JOBS 4096
558
559static inline bool should_fsync(struct thread_data *td)
560{
561 if (td->last_was_sync)
562 return false;
563 if (td_write(td) || td->o.override_sync)
564 return true;
565
566 return false;
567}
568
569/*
570 * Init/option functions
571 */
572extern int __must_check fio_init_options(void);
573extern int __must_check parse_options(int, char **);
574extern int parse_jobs_ini(char *, int, int, int);
575extern int parse_cmd_line(int, char **, int);
576extern int fio_backend(struct sk_out *);
577extern void reset_fio_state(void);
578extern void clear_io_state(struct thread_data *, int);
579extern int fio_options_parse(struct thread_data *, char **, int);
580extern void fio_keywords_init(void);
581extern void fio_keywords_exit(void);
582extern int fio_cmd_option_parse(struct thread_data *, const char *, char *);
583extern int fio_cmd_ioengine_option_parse(struct thread_data *, const char *, char *);
584extern void fio_fill_default_options(struct thread_data *);
585extern int fio_show_option_help(const char *);
586extern void fio_options_set_ioengine_opts(struct option *long_options, struct thread_data *td);
587extern void fio_options_dup_and_init(struct option *);
588extern char *fio_option_dup_subs(const char *);
589extern void fio_options_mem_dupe(struct thread_data *);
590extern void td_fill_rand_seeds(struct thread_data *);
591extern void td_fill_verify_state_seed(struct thread_data *);
592extern void add_job_opts(const char **, int);
593extern int ioengine_load(struct thread_data *);
594extern bool parse_dryrun(void);
595extern int fio_running_or_pending_io_threads(void);
596extern int fio_set_fd_nonblocking(int, const char *);
597extern void sig_show_status(int sig);
598extern struct thread_data *get_global_options(void);
599
600extern uintptr_t page_mask;
601extern uintptr_t page_size;
602extern int initialize_fio(char *envp[]);
603extern void deinitialize_fio(void);
604
605#define FIO_GETOPT_JOB 0x89000000
606#define FIO_GETOPT_IOENGINE 0x98000000
607#define FIO_NR_OPTIONS (FIO_MAX_OPTS + 128)
608
609/*
610 * ETA/status stuff
611 */
612extern void print_thread_status(void);
613extern void print_status_init(int);
614extern char *fio_uint_to_kmg(unsigned int val);
615
616/*
617 * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it
618 * will never back again. It may cycle between running/verififying/fsyncing.
619 * Once the thread reaches TD_EXITED, it is just waiting for the core to
620 * reap it.
621 */
622enum {
623 TD_NOT_CREATED = 0,
624 TD_CREATED,
625 TD_INITIALIZED,
626 TD_RAMP,
627 TD_SETTING_UP,
628 TD_RUNNING,
629 TD_PRE_READING,
630 TD_VERIFYING,
631 TD_FSYNCING,
632 TD_FINISHING,
633 TD_EXITED,
634 TD_REAPED,
635 TD_LAST,
636 TD_NR,
637};
638
639#define TD_ENG_FLAG_SHIFT 17
640#define TD_ENG_FLAG_MASK ((1U << 17) - 1)
641
642static inline void td_set_ioengine_flags(struct thread_data *td)
643{
644 td->flags = (~(TD_ENG_FLAG_MASK << TD_ENG_FLAG_SHIFT) & td->flags) |
645 (td->io_ops->flags << TD_ENG_FLAG_SHIFT);
646}
647
648static inline bool td_ioengine_flagged(struct thread_data *td,
649 enum fio_ioengine_flags flags)
650{
651 return ((td->flags >> TD_ENG_FLAG_SHIFT) & flags) != 0;
652}
653
654extern void td_set_runstate(struct thread_data *, int);
655extern int td_bump_runstate(struct thread_data *, int);
656extern void td_restore_runstate(struct thread_data *, int);
657extern const char *runstate_to_name(int runstate);
658
659/*
660 * Allow 60 seconds for a job to quit on its own, otherwise reap with
661 * a vengeance.
662 */
663#define FIO_REAP_TIMEOUT 300
664
665enum {
666 TERMINATE_NONE = 0,
667 TERMINATE_GROUP = 1,
668 TERMINATE_STONEWALL = 2,
669 TERMINATE_ALL = -1,
670};
671
672extern void fio_terminate_threads(unsigned int, unsigned int);
673extern void fio_mark_td_terminate(struct thread_data *);
674
675/*
676 * Memory helpers
677 */
678extern int __must_check fio_pin_memory(struct thread_data *);
679extern void fio_unpin_memory(struct thread_data *);
680extern int __must_check allocate_io_mem(struct thread_data *);
681extern void free_io_mem(struct thread_data *);
682extern void free_threads_shm(void);
683
684#ifdef FIO_INTERNAL
685#define PTR_ALIGN(ptr, mask) \
686 (char *) (((uintptr_t) (ptr) + (mask)) & ~(mask))
687#endif
688
689/*
690 * Reset stats after ramp time completes
691 */
692extern void reset_all_stats(struct thread_data *);
693
694extern int io_queue_event(struct thread_data *td, struct io_u *io_u, int *ret,
695 enum fio_ddir ddir, uint64_t *bytes_issued, int from_verify,
696 struct timespec *comp_time);
697
698/*
699 * Latency target helpers
700 */
701extern void lat_target_check(struct thread_data *);
702extern void lat_target_init(struct thread_data *);
703extern void lat_target_reset(struct thread_data *);
704
705/*
706 * Iterates all threads/processes within all the defined jobs
707 */
708#define for_each_td(td, i) \
709 for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++)
710#define for_each_file(td, f, i) \
711 if ((td)->files_index) \
712 for ((i) = 0, (f) = (td)->files[0]; \
713 (i) < (td)->o.nr_files && ((f) = (td)->files[i]) != NULL; \
714 (i)++)
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
773static inline bool td_offload_overlap(struct thread_data *td)
774{
775 return td->o.serialize_overlap && td->o.io_submit_mode == IO_MODE_OFFLOAD;
776}
777
778/*
779 * We currently only need to do locking if we have verifier threads
780 * accessing our internal structures too
781 */
782static inline void __td_io_u_lock(struct thread_data *td)
783{
784 pthread_mutex_lock(&td->io_u_lock);
785}
786
787static inline void __td_io_u_unlock(struct thread_data *td)
788{
789 pthread_mutex_unlock(&td->io_u_lock);
790}
791
792static inline void td_io_u_free_notify(struct thread_data *td)
793{
794 if (td_async_processing(td))
795 pthread_cond_signal(&td->free_cond);
796}
797
798static inline void td_flags_clear(struct thread_data *td, unsigned int *flags,
799 unsigned int value)
800{
801 if (!td_async_processing(td))
802 *flags &= ~value;
803 else
804 __sync_fetch_and_and(flags, ~value);
805}
806
807static inline void td_flags_set(struct thread_data *td, unsigned int *flags,
808 unsigned int value)
809{
810 if (!td_async_processing(td))
811 *flags |= value;
812 else
813 __sync_fetch_and_or(flags, value);
814}
815
816extern const char *fio_get_arch_string(int);
817extern const char *fio_get_os_string(int);
818
819enum {
820 __FIO_OUTPUT_TERSE = 0,
821 __FIO_OUTPUT_JSON = 1,
822 __FIO_OUTPUT_NORMAL = 2,
823 __FIO_OUTPUT_JSON_PLUS = 3,
824 FIO_OUTPUT_NR = 4,
825
826 FIO_OUTPUT_TERSE = 1U << __FIO_OUTPUT_TERSE,
827 FIO_OUTPUT_JSON = 1U << __FIO_OUTPUT_JSON,
828 FIO_OUTPUT_NORMAL = 1U << __FIO_OUTPUT_NORMAL,
829 FIO_OUTPUT_JSON_PLUS = 1U << __FIO_OUTPUT_JSON_PLUS,
830};
831
832enum {
833 FIO_RAND_DIST_RANDOM = 0,
834 FIO_RAND_DIST_ZIPF,
835 FIO_RAND_DIST_PARETO,
836 FIO_RAND_DIST_GAUSS,
837 FIO_RAND_DIST_ZONED,
838 FIO_RAND_DIST_ZONED_ABS,
839};
840
841#define FIO_DEF_ZIPF 1.1
842#define FIO_DEF_PARETO 0.2
843
844enum {
845 FIO_RAND_GEN_TAUSWORTHE = 0,
846 FIO_RAND_GEN_LFSR,
847 FIO_RAND_GEN_TAUSWORTHE64,
848};
849
850enum {
851 FIO_CPUS_SHARED = 0,
852 FIO_CPUS_SPLIT,
853};
854
855extern void exec_trigger(const char *);
856extern void check_trigger_file(void);
857
858extern bool in_flight_overlap(struct io_u_queue *q, struct io_u *io_u);
859extern pthread_mutex_t overlap_check;
860
861static inline void *fio_memalign(size_t alignment, size_t size, bool shared)
862{
863 return __fio_memalign(alignment, size, shared ? smalloc : malloc);
864}
865
866static inline void fio_memfree(void *ptr, size_t size, bool shared)
867{
868 return __fio_memfree(ptr, size, shared ? sfree : free);
869}
870
871#endif
fio - Flexible IO Tester