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