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init: add semantics for all types of backends running
[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#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/*
171 * This describes a single thread/process executing a fio job.
172 */
173struct thread_data {
174 struct flist_head opt_list;
175 unsigned long flags;
176 struct thread_options o;
177 void *eo;
178 pthread_t thread;
179 unsigned int thread_number;
180 unsigned int subjob_number;
181 unsigned int groupid;
182 struct thread_stat ts __attribute__ ((aligned(8)));
183
184 int client_type;
185
186 struct io_log *slat_log;
187 struct io_log *clat_log;
188 struct io_log *clat_hist_log;
189 struct io_log *lat_log;
190 struct io_log *bw_log;
191 struct io_log *iops_log;
192
193 struct workqueue log_compress_wq;
194
195 struct thread_data *parent;
196
197 uint64_t stat_io_bytes[DDIR_RWDIR_CNT];
198 struct timespec bw_sample_time;
199
200 uint64_t stat_io_blocks[DDIR_RWDIR_CNT];
201 struct timespec iops_sample_time;
202
203 volatile int update_rusage;
204 struct fio_sem *rusage_sem;
205 struct rusage ru_start;
206 struct rusage ru_end;
207
208 struct fio_file **files;
209 unsigned char *file_locks;
210 unsigned int files_size;
211 unsigned int files_index;
212 unsigned int nr_open_files;
213 unsigned int nr_done_files;
214 union {
215 unsigned int next_file;
216 struct frand_state next_file_state;
217 };
218 union {
219 struct zipf_state next_file_zipf;
220 struct gauss_state next_file_gauss;
221 };
222 union {
223 double zipf_theta;
224 double pareto_h;
225 double gauss_dev;
226 };
227 int error;
228 int sig;
229 int done;
230 int stop_io;
231 pid_t pid;
232 char *orig_buffer;
233 size_t orig_buffer_size;
234 volatile int runstate;
235 volatile bool terminate;
236 bool last_was_sync;
237 enum fio_ddir last_ddir;
238
239 int mmapfd;
240
241 void *iolog_buf;
242 FILE *iolog_f;
243
244 unsigned long rand_seeds[FIO_RAND_NR_OFFS];
245
246 struct frand_state bsrange_state[DDIR_RWDIR_CNT];
247 struct frand_state verify_state;
248 struct frand_state trim_state;
249 struct frand_state delay_state;
250
251 struct frand_state buf_state;
252 struct frand_state buf_state_prev;
253 struct frand_state dedupe_state;
254 struct frand_state zone_state;
255
256 struct zone_split_index **zone_state_index;
257
258 unsigned int verify_batch;
259 unsigned int trim_batch;
260
261 struct thread_io_list *vstate;
262
263 int shm_id;
264
265 /*
266 * IO engine hooks, contains everything needed to submit an io_u
267 * to any of the available IO engines.
268 */
269 struct ioengine_ops *io_ops;
270 int io_ops_init;
271
272 /*
273 * IO engine private data and dlhandle.
274 */
275 void *io_ops_data;
276 void *io_ops_dlhandle;
277
278 /*
279 * Queue depth of io_u's that fio MIGHT do
280 */
281 unsigned int cur_depth;
282
283 /*
284 * io_u's about to be committed
285 */
286 unsigned int io_u_queued;
287
288 /*
289 * io_u's submitted but not completed yet
290 */
291 unsigned int io_u_in_flight;
292
293 /*
294 * List of free and busy io_u's
295 */
296 struct io_u_ring io_u_requeues;
297 struct io_u_queue io_u_freelist;
298 struct io_u_queue io_u_all;
299 pthread_mutex_t io_u_lock;
300 pthread_cond_t free_cond;
301
302 /*
303 * async verify offload
304 */
305 struct flist_head verify_list;
306 pthread_t *verify_threads;
307 unsigned int nr_verify_threads;
308 pthread_cond_t verify_cond;
309 int verify_thread_exit;
310
311 /*
312 * Rate state
313 */
314 uint64_t rate_bps[DDIR_RWDIR_CNT];
315 uint64_t rate_next_io_time[DDIR_RWDIR_CNT];
316 unsigned long rate_bytes[DDIR_RWDIR_CNT];
317 unsigned long rate_blocks[DDIR_RWDIR_CNT];
318 unsigned long long rate_io_issue_bytes[DDIR_RWDIR_CNT];
319 struct timespec lastrate[DDIR_RWDIR_CNT];
320 int64_t last_usec[DDIR_RWDIR_CNT];
321 struct frand_state poisson_state[DDIR_RWDIR_CNT];
322
323 /*
324 * Enforced rate submission/completion workqueue
325 */
326 struct workqueue io_wq;
327
328 uint64_t total_io_size;
329 uint64_t fill_device_size;
330
331 /*
332 * Issue side
333 */
334 uint64_t io_issues[DDIR_RWDIR_CNT];
335 uint64_t io_issue_bytes[DDIR_RWDIR_CNT];
336 uint64_t loops;
337
338 /*
339 * Completions
340 */
341 uint64_t io_blocks[DDIR_RWDIR_CNT];
342 uint64_t this_io_blocks[DDIR_RWDIR_CNT];
343 uint64_t io_bytes[DDIR_RWDIR_CNT];
344 uint64_t this_io_bytes[DDIR_RWDIR_CNT];
345 uint64_t io_skip_bytes;
346 uint64_t zone_bytes;
347 struct fio_sem *sem;
348 uint64_t bytes_done[DDIR_RWDIR_CNT];
349
350 /*
351 * State for random io, a bitmap of blocks done vs not done
352 */
353 struct frand_state random_state;
354
355 struct timespec start; /* start of this loop */
356 struct timespec epoch; /* time job was started */
357 unsigned long long unix_epoch; /* Time job was started, unix epoch based. */
358 struct timespec last_issue;
359 long time_offset;
360 struct timespec ts_cache;
361 struct timespec terminate_time;
362 unsigned int ts_cache_nr;
363 unsigned int ts_cache_mask;
364 bool ramp_time_over;
365
366 /*
367 * Time since last latency_window was started
368 */
369 struct timespec latency_ts;
370 unsigned int latency_qd;
371 unsigned int latency_qd_high;
372 unsigned int latency_qd_low;
373 unsigned int latency_failed;
374 uint64_t latency_ios;
375 int latency_end_run;
376
377 /*
378 * read/write mixed workload state
379 */
380 struct frand_state rwmix_state;
381 unsigned long rwmix_issues;
382 enum fio_ddir rwmix_ddir;
383 unsigned int ddir_seq_nr;
384
385 /*
386 * rand/seq mixed workload state
387 */
388 struct frand_state seq_rand_state[DDIR_RWDIR_CNT];
389
390 /*
391 * IO history logs for verification. We use a tree for sorting,
392 * if we are overwriting. Otherwise just use a fifo.
393 */
394 struct rb_root io_hist_tree;
395 struct flist_head io_hist_list;
396 unsigned long io_hist_len;
397
398 /*
399 * For IO replaying
400 */
401 struct flist_head io_log_list;
402 FILE *io_log_rfile;
403 unsigned int io_log_current;
404 unsigned int io_log_checkmark;
405 unsigned int io_log_highmark;
406 struct timespec io_log_highmark_time;
407
408 /*
409 * For tracking/handling discards
410 */
411 struct flist_head trim_list;
412 unsigned long trim_entries;
413
414 /*
415 * for fileservice, how often to switch to a new file
416 */
417 unsigned int file_service_nr;
418 unsigned int file_service_left;
419 struct fio_file *file_service_file;
420
421 unsigned int sync_file_range_nr;
422
423 /*
424 * For generating file sizes
425 */
426 struct frand_state file_size_state;
427
428 /*
429 * Error counts
430 */
431 unsigned int total_err_count;
432 int first_error;
433
434 struct fio_flow *flow;
435
436 /*
437 * Can be overloaded by profiles
438 */
439 struct prof_io_ops prof_io_ops;
440 void *prof_data;
441
442 void *pinned_mem;
443
444 struct steadystate_data ss;
445
446 char verror[FIO_VERROR_SIZE];
447
448#ifdef CONFIG_CUDA
449 /*
450 * for GPU memory management
451 */
452 int gpu_dev_cnt;
453 int gpu_dev_id;
454 CUdevice cu_dev;
455 CUcontext cu_ctx;
456 CUdeviceptr dev_mem_ptr;
457#endif
458
459};
460
461/*
462 * when should interactive ETA output be generated
463 */
464enum {
465 FIO_ETA_AUTO,
466 FIO_ETA_ALWAYS,
467 FIO_ETA_NEVER,
468};
469
470#define __td_verror(td, err, msg, func) \
471 do { \
472 unsigned int ____e = (err); \
473 if ((td)->error) \
474 break; \
475 (td)->error = ____e; \
476 if (!(td)->first_error) \
477 nowarn_snprintf(td->verror, sizeof(td->verror), \
478 "file:%s:%d, func=%s, error=%s", \
479 __FILE__, __LINE__, (func), (msg)); \
480 } while (0)
481
482
483#define td_clear_error(td) do { \
484 (td)->error = 0; \
485 if ((td)->parent) \
486 (td)->parent->error = 0; \
487} while (0)
488
489#define td_verror(td, err, func) do { \
490 __td_verror((td), (err), strerror((err)), (func)); \
491 if ((td)->parent) \
492 __td_verror((td)->parent, (err), strerror((err)), (func)); \
493} while (0)
494
495#define td_vmsg(td, err, msg, func) do { \
496 __td_verror((td), (err), (msg), (func)); \
497 if ((td)->parent) \
498 __td_verror((td)->parent, (err), (msg), (func)); \
499} while (0)
500
501#define __fio_stringify_1(x) #x
502#define __fio_stringify(x) __fio_stringify_1(x)
503
504extern int exitall_on_terminate;
505extern unsigned int thread_number;
506extern unsigned int stat_number;
507extern int shm_id;
508extern int groupid;
509extern int output_format;
510extern int append_terse_output;
511extern int temp_stall_ts;
512extern uintptr_t page_mask, page_size;
513extern int read_only;
514extern int eta_print;
515extern int eta_new_line;
516extern unsigned int eta_interval_msec;
517extern unsigned long done_secs;
518extern int fio_gtod_offload;
519extern int fio_gtod_cpu;
520extern enum fio_cs fio_clock_source;
521extern int fio_clock_source_set;
522extern int warnings_fatal;
523extern int terse_version;
524extern int is_backend;
525extern int is_local_backend;
526extern int nr_clients;
527extern int log_syslog;
528extern int status_interval;
529extern const char fio_version_string[];
530extern char *trigger_file;
531extern char *trigger_cmd;
532extern char *trigger_remote_cmd;
533extern long long trigger_timeout;
534extern char *aux_path;
535
536extern struct thread_data *threads;
537
538static inline bool is_running_backend(void)
539{
540 return is_backend || is_local_backend;
541}
542
543extern bool eta_time_within_slack(unsigned int time);
544
545static inline void fio_ro_check(const struct thread_data *td, struct io_u *io_u)
546{
547 assert(!(io_u->ddir == DDIR_WRITE && !td_write(td)) &&
548 !(io_u->ddir == DDIR_TRIM && !td_trim(td)));
549}
550
551#define REAL_MAX_JOBS 4096
552
553static inline bool should_fsync(struct thread_data *td)
554{
555 if (td->last_was_sync)
556 return false;
557 if (td_write(td) || td->o.override_sync)
558 return true;
559
560 return false;
561}
562
563/*
564 * Init/option functions
565 */
566extern int __must_check fio_init_options(void);
567extern int __must_check parse_options(int, char **);
568extern int parse_jobs_ini(char *, int, int, int);
569extern int parse_cmd_line(int, char **, int);
570extern int fio_backend(struct sk_out *);
571extern void reset_fio_state(void);
572extern void clear_io_state(struct thread_data *, int);
573extern int fio_options_parse(struct thread_data *, char **, int);
574extern void fio_keywords_init(void);
575extern void fio_keywords_exit(void);
576extern int fio_cmd_option_parse(struct thread_data *, const char *, char *);
577extern int fio_cmd_ioengine_option_parse(struct thread_data *, const char *, char *);
578extern void fio_fill_default_options(struct thread_data *);
579extern int fio_show_option_help(const char *);
580extern void fio_options_set_ioengine_opts(struct option *long_options, struct thread_data *td);
581extern void fio_options_dup_and_init(struct option *);
582extern char *fio_option_dup_subs(const char *);
583extern void fio_options_mem_dupe(struct thread_data *);
584extern void td_fill_rand_seeds(struct thread_data *);
585extern void td_fill_verify_state_seed(struct thread_data *);
586extern void add_job_opts(const char **, int);
587extern int ioengine_load(struct thread_data *);
588extern bool parse_dryrun(void);
589extern int fio_running_or_pending_io_threads(void);
590extern int fio_set_fd_nonblocking(int, const char *);
591extern void sig_show_status(int sig);
592extern struct thread_data *get_global_options(void);
593
594extern uintptr_t page_mask;
595extern uintptr_t page_size;
596extern int initialize_fio(char *envp[]);
597extern void deinitialize_fio(void);
598
599#define FIO_GETOPT_JOB 0x89000000
600#define FIO_GETOPT_IOENGINE 0x98000000
601#define FIO_NR_OPTIONS (FIO_MAX_OPTS + 128)
602
603/*
604 * ETA/status stuff
605 */
606extern void print_thread_status(void);
607extern void print_status_init(int);
608extern char *fio_uint_to_kmg(unsigned int val);
609
610/*
611 * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it
612 * will never back again. It may cycle between running/verififying/fsyncing.
613 * Once the thread reaches TD_EXITED, it is just waiting for the core to
614 * reap it.
615 */
616enum {
617 TD_NOT_CREATED = 0,
618 TD_CREATED,
619 TD_INITIALIZED,
620 TD_RAMP,
621 TD_SETTING_UP,
622 TD_RUNNING,
623 TD_PRE_READING,
624 TD_VERIFYING,
625 TD_FSYNCING,
626 TD_FINISHING,
627 TD_EXITED,
628 TD_REAPED,
629 TD_LAST,
630 TD_NR,
631};
632
633#define TD_ENG_FLAG_SHIFT 17
634#define TD_ENG_FLAG_MASK ((1U << 17) - 1)
635
636static inline void td_set_ioengine_flags(struct thread_data *td)
637{
638 td->flags = (~(TD_ENG_FLAG_MASK << TD_ENG_FLAG_SHIFT) & td->flags) |
639 (td->io_ops->flags << TD_ENG_FLAG_SHIFT);
640}
641
642static inline bool td_ioengine_flagged(struct thread_data *td,
643 enum fio_ioengine_flags flags)
644{
645 return ((td->flags >> TD_ENG_FLAG_SHIFT) & flags) != 0;
646}
647
648extern void td_set_runstate(struct thread_data *, int);
649extern int td_bump_runstate(struct thread_data *, int);
650extern void td_restore_runstate(struct thread_data *, int);
651extern const char *runstate_to_name(int runstate);
652
653/*
654 * Allow 60 seconds for a job to quit on its own, otherwise reap with
655 * a vengeance.
656 */
657#define FIO_REAP_TIMEOUT 300
658
659#define TERMINATE_ALL (-1U)
660extern void fio_terminate_threads(unsigned int);
661extern void fio_mark_td_terminate(struct thread_data *);
662
663/*
664 * Memory helpers
665 */
666extern int __must_check fio_pin_memory(struct thread_data *);
667extern void fio_unpin_memory(struct thread_data *);
668extern int __must_check allocate_io_mem(struct thread_data *);
669extern void free_io_mem(struct thread_data *);
670extern void free_threads_shm(void);
671
672#ifdef FIO_INTERNAL
673#define PTR_ALIGN(ptr, mask) \
674 (char *) (((uintptr_t) (ptr) + (mask)) & ~(mask))
675#endif
676
677/*
678 * Reset stats after ramp time completes
679 */
680extern void reset_all_stats(struct thread_data *);
681
682extern int io_queue_event(struct thread_data *td, struct io_u *io_u, int *ret,
683 enum fio_ddir ddir, uint64_t *bytes_issued, int from_verify,
684 struct timespec *comp_time);
685
686/*
687 * Latency target helpers
688 */
689extern void lat_target_check(struct thread_data *);
690extern void lat_target_init(struct thread_data *);
691extern void lat_target_reset(struct thread_data *);
692
693/*
694 * Iterates all threads/processes within all the defined jobs
695 */
696#define for_each_td(td, i) \
697 for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++)
698#define for_each_file(td, f, i) \
699 if ((td)->files_index) \
700 for ((i) = 0, (f) = (td)->files[0]; \
701 (i) < (td)->o.nr_files && ((f) = (td)->files[i]) != NULL; \
702 (i)++)
703
704#define fio_assert(td, cond) do { \
705 if (!(cond)) { \
706 int *__foo = NULL; \
707 fprintf(stderr, "file:%s:%d, assert %s failed\n", __FILE__, __LINE__, #cond); \
708 td_set_runstate((td), TD_EXITED); \
709 (td)->error = EFAULT; \
710 *__foo = 0; \
711 } \
712} while (0)
713
714static inline bool fio_fill_issue_time(struct thread_data *td)
715{
716 if (td->o.read_iolog_file ||
717 !td->o.disable_clat || !td->o.disable_slat || !td->o.disable_bw)
718 return true;
719
720 return false;
721}
722
723static inline bool option_check_rate(struct thread_data *td, enum fio_ddir ddir)
724{
725 struct thread_options *o = &td->o;
726
727 /*
728 * If some rate setting was given, we need to check it
729 */
730 if (o->rate[ddir] || o->ratemin[ddir] || o->rate_iops[ddir] ||
731 o->rate_iops_min[ddir])
732 return true;
733
734 return false;
735}
736
737static inline bool __should_check_rate(struct thread_data *td)
738{
739 return (td->flags & TD_F_CHECK_RATE) != 0;
740}
741
742static inline bool should_check_rate(struct thread_data *td)
743{
744 if (!__should_check_rate(td))
745 return false;
746
747 return ddir_rw_sum(td->bytes_done) != 0;
748}
749
750static inline unsigned long long td_max_bs(struct thread_data *td)
751{
752 unsigned long long max_bs;
753
754 max_bs = max(td->o.max_bs[DDIR_READ], td->o.max_bs[DDIR_WRITE]);
755 return max(td->o.max_bs[DDIR_TRIM], max_bs);
756}
757
758static inline unsigned long long td_min_bs(struct thread_data *td)
759{
760 unsigned long long min_bs;
761
762 min_bs = min(td->o.min_bs[DDIR_READ], td->o.min_bs[DDIR_WRITE]);
763 return min(td->o.min_bs[DDIR_TRIM], min_bs);
764}
765
766static inline bool td_async_processing(struct thread_data *td)
767{
768 return (td->flags & TD_F_NEED_LOCK) != 0;
769}
770
771/*
772 * We currently only need to do locking if we have verifier threads
773 * accessing our internal structures too
774 */
775static inline void td_io_u_lock(struct thread_data *td)
776{
777 if (td_async_processing(td))
778 pthread_mutex_lock(&td->io_u_lock);
779}
780
781static inline void td_io_u_unlock(struct thread_data *td)
782{
783 if (td_async_processing(td))
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