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Merge branch 'adjusting-libpmem' of https://github.com/lukaszstolarczuk/fio into...
[fio.git] / fio.h
... / ...
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 unsigned int num_open_zones;
264
265 unsigned int verify_batch;
266 unsigned int trim_batch;
267
268 struct thread_io_list *vstate;
269
270 int shm_id;
271
272 /*
273 * IO engine hooks, contains everything needed to submit an io_u
274 * to any of the available IO engines.
275 */
276 struct ioengine_ops *io_ops;
277 int io_ops_init;
278
279 /*
280 * IO engine private data and dlhandle.
281 */
282 void *io_ops_data;
283 void *io_ops_dlhandle;
284
285 /*
286 * Queue depth of io_u's that fio MIGHT do
287 */
288 unsigned int cur_depth;
289
290 /*
291 * io_u's about to be committed
292 */
293 unsigned int io_u_queued;
294
295 /*
296 * io_u's submitted but not completed yet
297 */
298 unsigned int io_u_in_flight;
299
300 /*
301 * List of free and busy io_u's
302 */
303 struct io_u_ring io_u_requeues;
304 struct io_u_queue io_u_freelist;
305 struct io_u_queue io_u_all;
306 pthread_mutex_t io_u_lock;
307 pthread_cond_t free_cond;
308
309 /*
310 * async verify offload
311 */
312 struct flist_head verify_list;
313 pthread_t *verify_threads;
314 unsigned int nr_verify_threads;
315 pthread_cond_t verify_cond;
316 int verify_thread_exit;
317
318 /*
319 * Rate state
320 */
321 uint64_t rate_bps[DDIR_RWDIR_CNT];
322 uint64_t rate_next_io_time[DDIR_RWDIR_CNT];
323 unsigned long long rate_bytes[DDIR_RWDIR_CNT];
324 unsigned long rate_blocks[DDIR_RWDIR_CNT];
325 unsigned long long rate_io_issue_bytes[DDIR_RWDIR_CNT];
326 struct timespec lastrate[DDIR_RWDIR_CNT];
327 int64_t last_usec[DDIR_RWDIR_CNT];
328 struct frand_state poisson_state[DDIR_RWDIR_CNT];
329
330 /*
331 * Enforced rate submission/completion workqueue
332 */
333 struct workqueue io_wq;
334
335 uint64_t total_io_size;
336 uint64_t fill_device_size;
337
338 /*
339 * Issue side
340 */
341 uint64_t io_issues[DDIR_RWDIR_CNT];
342 uint64_t io_issue_bytes[DDIR_RWDIR_CNT];
343 uint64_t loops;
344
345 /*
346 * Completions
347 */
348 uint64_t io_blocks[DDIR_RWDIR_CNT];
349 uint64_t this_io_blocks[DDIR_RWDIR_CNT];
350 uint64_t io_bytes[DDIR_RWDIR_CNT];
351 uint64_t this_io_bytes[DDIR_RWDIR_CNT];
352 uint64_t io_skip_bytes;
353 uint64_t zone_bytes;
354 struct fio_sem *sem;
355 uint64_t bytes_done[DDIR_RWDIR_CNT];
356
357 /*
358 * State for random io, a bitmap of blocks done vs not done
359 */
360 struct frand_state random_state;
361
362 struct timespec start; /* start of this loop */
363 struct timespec epoch; /* time job was started */
364 unsigned long long unix_epoch; /* Time job was started, unix epoch based. */
365 struct timespec last_issue;
366 long time_offset;
367 struct timespec ts_cache;
368 struct timespec terminate_time;
369 unsigned int ts_cache_nr;
370 unsigned int ts_cache_mask;
371 bool ramp_time_over;
372
373 /*
374 * Time since last latency_window was started
375 */
376 struct timespec latency_ts;
377 unsigned int latency_qd;
378 unsigned int latency_qd_high;
379 unsigned int latency_qd_low;
380 unsigned int latency_failed;
381 unsigned int latency_stable_count;
382 uint64_t latency_ios;
383 int latency_end_run;
384
385 /*
386 * read/write mixed workload state
387 */
388 struct frand_state rwmix_state;
389 unsigned long rwmix_issues;
390 enum fio_ddir rwmix_ddir;
391 unsigned int ddir_seq_nr;
392
393 /*
394 * rand/seq mixed workload state
395 */
396 struct frand_state seq_rand_state[DDIR_RWDIR_CNT];
397
398 /*
399 * IO history logs for verification. We use a tree for sorting,
400 * if we are overwriting. Otherwise just use a fifo.
401 */
402 struct rb_root io_hist_tree;
403 struct flist_head io_hist_list;
404 unsigned long io_hist_len;
405
406 /*
407 * For IO replaying
408 */
409 struct flist_head io_log_list;
410 FILE *io_log_rfile;
411 unsigned int io_log_current;
412 unsigned int io_log_checkmark;
413 unsigned int io_log_highmark;
414 struct timespec io_log_highmark_time;
415
416 /*
417 * For tracking/handling discards
418 */
419 struct flist_head trim_list;
420 unsigned long trim_entries;
421
422 /*
423 * for fileservice, how often to switch to a new file
424 */
425 unsigned int file_service_nr;
426 unsigned int file_service_left;
427 struct fio_file *file_service_file;
428
429 unsigned int sync_file_range_nr;
430
431 /*
432 * For generating file sizes
433 */
434 struct frand_state file_size_state;
435
436 /*
437 * Error counts
438 */
439 unsigned int total_err_count;
440 int first_error;
441
442 struct fio_flow *flow;
443
444 /*
445 * Can be overloaded by profiles
446 */
447 struct prof_io_ops prof_io_ops;
448 void *prof_data;
449
450 void *pinned_mem;
451
452 struct steadystate_data ss;
453
454 char verror[FIO_VERROR_SIZE];
455
456#ifdef CONFIG_CUDA
457 /*
458 * for GPU memory management
459 */
460 int gpu_dev_cnt;
461 int gpu_dev_id;
462 CUdevice cu_dev;
463 CUcontext cu_ctx;
464 CUdeviceptr dev_mem_ptr;
465#endif
466
467};
468
469/*
470 * when should interactive ETA output be generated
471 */
472enum {
473 FIO_ETA_AUTO,
474 FIO_ETA_ALWAYS,
475 FIO_ETA_NEVER,
476};
477
478#define __td_verror(td, err, msg, func) \
479 do { \
480 unsigned int ____e = (err); \
481 if ((td)->error) \
482 break; \
483 (td)->error = ____e; \
484 if (!(td)->first_error) \
485 nowarn_snprintf(td->verror, sizeof(td->verror), \
486 "file:%s:%d, func=%s, error=%s", \
487 __FILE__, __LINE__, (func), (msg)); \
488 } while (0)
489
490
491#define td_clear_error(td) do { \
492 (td)->error = 0; \
493 if ((td)->parent) \
494 (td)->parent->error = 0; \
495} while (0)
496
497#define td_verror(td, err, func) do { \
498 __td_verror((td), (err), strerror((err)), (func)); \
499 if ((td)->parent) \
500 __td_verror((td)->parent, (err), strerror((err)), (func)); \
501} while (0)
502
503#define td_vmsg(td, err, msg, func) do { \
504 __td_verror((td), (err), (msg), (func)); \
505 if ((td)->parent) \
506 __td_verror((td)->parent, (err), (msg), (func)); \
507} while (0)
508
509#define __fio_stringify_1(x) #x
510#define __fio_stringify(x) __fio_stringify_1(x)
511
512extern bool exitall_on_terminate;
513extern unsigned int thread_number;
514extern unsigned int stat_number;
515extern int shm_id;
516extern int groupid;
517extern int output_format;
518extern int append_terse_output;
519extern int temp_stall_ts;
520extern uintptr_t page_mask, page_size;
521extern bool read_only;
522extern int eta_print;
523extern int eta_new_line;
524extern unsigned int eta_interval_msec;
525extern unsigned long done_secs;
526extern int fio_gtod_offload;
527extern int fio_gtod_cpu;
528extern enum fio_cs fio_clock_source;
529extern int fio_clock_source_set;
530extern int warnings_fatal;
531extern int terse_version;
532extern bool is_backend;
533extern bool is_local_backend;
534extern int nr_clients;
535extern bool log_syslog;
536extern int status_interval;
537extern const char fio_version_string[];
538extern char *trigger_file;
539extern char *trigger_cmd;
540extern char *trigger_remote_cmd;
541extern long long trigger_timeout;
542extern char *aux_path;
543
544extern struct thread_data *threads;
545
546static inline bool is_running_backend(void)
547{
548 return is_backend || is_local_backend;
549}
550
551extern bool eta_time_within_slack(unsigned int time);
552
553static inline void fio_ro_check(const struct thread_data *td, struct io_u *io_u)
554{
555 assert(!(io_u->ddir == DDIR_WRITE && !td_write(td)) &&
556 !(io_u->ddir == DDIR_TRIM && !td_trim(td)));
557}
558
559#define REAL_MAX_JOBS 4096
560
561static inline bool should_fsync(struct thread_data *td)
562{
563 if (td->last_was_sync)
564 return false;
565 if (td_write(td) || td->o.override_sync)
566 return true;
567
568 return false;
569}
570
571/*
572 * Init/option functions
573 */
574extern int __must_check fio_init_options(void);
575extern int __must_check parse_options(int, char **);
576extern int parse_jobs_ini(char *, int, int, int);
577extern int parse_cmd_line(int, char **, int);
578extern int fio_backend(struct sk_out *);
579extern void reset_fio_state(void);
580extern void clear_io_state(struct thread_data *, int);
581extern int fio_options_parse(struct thread_data *, char **, int);
582extern void fio_keywords_init(void);
583extern void fio_keywords_exit(void);
584extern int fio_cmd_option_parse(struct thread_data *, const char *, char *);
585extern int fio_cmd_ioengine_option_parse(struct thread_data *, const char *, char *);
586extern void fio_fill_default_options(struct thread_data *);
587extern int fio_show_option_help(const char *);
588extern void fio_options_set_ioengine_opts(struct option *long_options, struct thread_data *td);
589extern void fio_options_dup_and_init(struct option *);
590extern char *fio_option_dup_subs(const char *);
591extern void fio_options_mem_dupe(struct thread_data *);
592extern void td_fill_rand_seeds(struct thread_data *);
593extern void td_fill_verify_state_seed(struct thread_data *);
594extern void add_job_opts(const char **, int);
595extern int ioengine_load(struct thread_data *);
596extern bool parse_dryrun(void);
597extern int fio_running_or_pending_io_threads(void);
598extern int fio_set_fd_nonblocking(int, const char *);
599extern void sig_show_status(int sig);
600extern struct thread_data *get_global_options(void);
601
602extern uintptr_t page_mask;
603extern uintptr_t page_size;
604extern int initialize_fio(char *envp[]);
605extern void deinitialize_fio(void);
606
607#define FIO_GETOPT_JOB 0x89000000
608#define FIO_GETOPT_IOENGINE 0x98000000
609#define FIO_NR_OPTIONS (FIO_MAX_OPTS + 128)
610
611/*
612 * ETA/status stuff
613 */
614extern void print_thread_status(void);
615extern void print_status_init(int);
616extern char *fio_uint_to_kmg(unsigned int val);
617
618/*
619 * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it
620 * will never back again. It may cycle between running/verififying/fsyncing.
621 * Once the thread reaches TD_EXITED, it is just waiting for the core to
622 * reap it.
623 */
624enum {
625 TD_NOT_CREATED = 0,
626 TD_CREATED,
627 TD_INITIALIZED,
628 TD_RAMP,
629 TD_SETTING_UP,
630 TD_RUNNING,
631 TD_PRE_READING,
632 TD_VERIFYING,
633 TD_FSYNCING,
634 TD_FINISHING,
635 TD_EXITED,
636 TD_REAPED,
637 TD_LAST,
638 TD_NR,
639};
640
641#define TD_ENG_FLAG_SHIFT 17
642#define TD_ENG_FLAG_MASK ((1U << 17) - 1)
643
644static inline void td_set_ioengine_flags(struct thread_data *td)
645{
646 td->flags = (~(TD_ENG_FLAG_MASK << TD_ENG_FLAG_SHIFT) & td->flags) |
647 (td->io_ops->flags << TD_ENG_FLAG_SHIFT);
648}
649
650static inline bool td_ioengine_flagged(struct thread_data *td,
651 enum fio_ioengine_flags flags)
652{
653 return ((td->flags >> TD_ENG_FLAG_SHIFT) & flags) != 0;
654}
655
656extern void td_set_runstate(struct thread_data *, int);
657extern int td_bump_runstate(struct thread_data *, int);
658extern void td_restore_runstate(struct thread_data *, int);
659extern const char *runstate_to_name(int runstate);
660
661/*
662 * Allow 60 seconds for a job to quit on its own, otherwise reap with
663 * a vengeance.
664 */
665#define FIO_REAP_TIMEOUT 300
666
667enum {
668 TERMINATE_NONE = 0,
669 TERMINATE_GROUP = 1,
670 TERMINATE_STONEWALL = 2,
671 TERMINATE_ALL = -1,
672};
673
674extern void fio_terminate_threads(unsigned int, unsigned int);
675extern void fio_mark_td_terminate(struct thread_data *);
676
677/*
678 * Memory helpers
679 */
680extern int __must_check fio_pin_memory(struct thread_data *);
681extern void fio_unpin_memory(struct thread_data *);
682extern int __must_check allocate_io_mem(struct thread_data *);
683extern void free_io_mem(struct thread_data *);
684extern void free_threads_shm(void);
685
686#ifdef FIO_INTERNAL
687#define PTR_ALIGN(ptr, mask) \
688 (char *) (((uintptr_t) (ptr) + (mask)) & ~(mask))
689#endif
690
691/*
692 * Reset stats after ramp time completes
693 */
694extern void reset_all_stats(struct thread_data *);
695
696extern int io_queue_event(struct thread_data *td, struct io_u *io_u, int *ret,
697 enum fio_ddir ddir, uint64_t *bytes_issued, int from_verify,
698 struct timespec *comp_time);
699
700/*
701 * Latency target helpers
702 */
703extern void lat_target_check(struct thread_data *);
704extern void lat_target_init(struct thread_data *);
705extern void lat_target_reset(struct thread_data *);
706
707/*
708 * Iterates all threads/processes within all the defined jobs
709 */
710#define for_each_td(td, i) \
711 for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++)
712#define for_each_file(td, f, i) \
713 if ((td)->files_index) \
714 for ((i) = 0, (f) = (td)->files[0]; \
715 (i) < (td)->o.nr_files && ((f) = (td)->files[i]) != NULL; \
716 (i)++)
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
863static inline void *fio_memalign(size_t alignment, size_t size, bool shared)
864{
865 return __fio_memalign(alignment, size, shared ? smalloc : malloc);
866}
867
868static inline void fio_memfree(void *ptr, size_t size, bool shared)
869{
870 return __fio_memfree(ptr, size, shared ? sfree : free);
871}
872
873#endif
fio - Flexible IO Tester