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Replace redundant TD_F_NOIO flag with td->io_ops_init
[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 "mutex.h"
24#include "log.h"
25#include "debug.h"
26#include "file.h"
27#include "io_ddir.h"
28#include "ioengine.h"
29#include "iolog.h"
30#include "helpers.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 "client.h"
39#include "server.h"
40#include "stat.h"
41#include "flow.h"
42#include "io_u_queue.h"
43#include "workqueue.h"
44#include "steadystate.h"
45
46#ifdef CONFIG_SOLARISAIO
47#include <sys/asynch.h>
48#endif
49
50#ifdef CONFIG_LIBNUMA
51#include <linux/mempolicy.h>
52#include <numa.h>
53
54/*
55 * "local" is pseudo-policy
56 */
57#define MPOL_LOCAL MPOL_MAX
58#endif
59
60/*
61 * offset generator types
62 */
63enum {
64 RW_SEQ_SEQ = 0,
65 RW_SEQ_IDENT,
66};
67
68enum {
69 TD_F_VER_BACKLOG = 1U << 0,
70 TD_F_TRIM_BACKLOG = 1U << 1,
71 TD_F_READ_IOLOG = 1U << 2,
72 TD_F_REFILL_BUFFERS = 1U << 3,
73 TD_F_SCRAMBLE_BUFFERS = 1U << 4,
74 TD_F_VER_NONE = 1U << 5,
75 TD_F_PROFILE_OPS = 1U << 6,
76 TD_F_COMPRESS = 1U << 7,
77 TD_F_RESERVED = 1U << 8, /* not used */
78 TD_F_COMPRESS_LOG = 1U << 9,
79 TD_F_VSTATE_SAVED = 1U << 10,
80 TD_F_NEED_LOCK = 1U << 11,
81 TD_F_CHILD = 1U << 12,
82 TD_F_NO_PROGRESS = 1U << 13,
83 TD_F_REGROW_LOGS = 1U << 14,
84};
85
86enum {
87 FIO_RAND_BS_OFF = 0,
88 FIO_RAND_VER_OFF,
89 FIO_RAND_MIX_OFF,
90 FIO_RAND_FILE_OFF,
91 FIO_RAND_BLOCK_OFF,
92 FIO_RAND_FILE_SIZE_OFF,
93 FIO_RAND_TRIM_OFF,
94 FIO_RAND_BUF_OFF,
95 FIO_RAND_SEQ_RAND_READ_OFF,
96 FIO_RAND_SEQ_RAND_WRITE_OFF,
97 FIO_RAND_SEQ_RAND_TRIM_OFF,
98 FIO_RAND_START_DELAY,
99 FIO_DEDUPE_OFF,
100 FIO_RAND_POISSON_OFF,
101 FIO_RAND_ZONE_OFF,
102 FIO_RAND_NR_OFFS,
103};
104
105enum {
106 IO_MODE_INLINE = 0,
107 IO_MODE_OFFLOAD = 1,
108
109 RATE_PROCESS_LINEAR = 0,
110 RATE_PROCESS_POISSON = 1,
111};
112
113enum {
114 F_ADV_NONE = 0,
115 F_ADV_TYPE,
116 F_ADV_RANDOM,
117 F_ADV_SEQUENTIAL,
118};
119
120/*
121 * Per-thread/process specific data. Only used for the network client
122 * for now.
123 */
124struct sk_out;
125void sk_out_assign(struct sk_out *);
126void sk_out_drop(void);
127
128struct zone_split_index {
129 uint8_t size_perc;
130 uint8_t size_perc_prev;
131};
132
133/*
134 * This describes a single thread/process executing a fio job.
135 */
136struct thread_data {
137 struct flist_head opt_list;
138 unsigned long flags;
139 struct thread_options o;
140 void *eo;
141 pthread_t thread;
142 unsigned int thread_number;
143 unsigned int subjob_number;
144 unsigned int groupid;
145 struct thread_stat ts;
146
147 int client_type;
148
149 struct io_log *slat_log;
150 struct io_log *clat_log;
151 struct io_log *clat_hist_log;
152 struct io_log *lat_log;
153 struct io_log *bw_log;
154 struct io_log *iops_log;
155
156 struct workqueue log_compress_wq;
157
158 struct thread_data *parent;
159
160 uint64_t stat_io_bytes[DDIR_RWDIR_CNT];
161 struct timeval bw_sample_time;
162
163 uint64_t stat_io_blocks[DDIR_RWDIR_CNT];
164 struct timeval iops_sample_time;
165
166 volatile int update_rusage;
167 struct fio_mutex *rusage_sem;
168 struct rusage ru_start;
169 struct rusage ru_end;
170
171 struct fio_file **files;
172 unsigned char *file_locks;
173 unsigned int files_size;
174 unsigned int files_index;
175 unsigned int nr_open_files;
176 unsigned int nr_done_files;
177 unsigned int nr_normal_files;
178 union {
179 unsigned int next_file;
180 struct frand_state next_file_state;
181 };
182 union {
183 struct zipf_state next_file_zipf;
184 struct gauss_state next_file_gauss;
185 };
186 union {
187 double zipf_theta;
188 double pareto_h;
189 double gauss_dev;
190 };
191 int error;
192 int sig;
193 int done;
194 int stop_io;
195 pid_t pid;
196 char *orig_buffer;
197 size_t orig_buffer_size;
198 volatile int terminate;
199 volatile int runstate;
200 unsigned int last_was_sync;
201 enum fio_ddir last_ddir;
202
203 int mmapfd;
204
205 void *iolog_buf;
206 FILE *iolog_f;
207
208 unsigned long rand_seeds[FIO_RAND_NR_OFFS];
209
210 struct frand_state bsrange_state;
211 struct frand_state verify_state;
212 struct frand_state trim_state;
213 struct frand_state delay_state;
214
215 struct frand_state buf_state;
216 struct frand_state buf_state_prev;
217 struct frand_state dedupe_state;
218 struct frand_state zone_state;
219
220 struct zone_split_index **zone_state_index;
221
222 unsigned int verify_batch;
223 unsigned int trim_batch;
224
225 struct thread_io_list *vstate;
226
227 int shm_id;
228
229 /*
230 * IO engine hooks, contains everything needed to submit an io_u
231 * to any of the available IO engines.
232 */
233 struct ioengine_ops *io_ops;
234 int io_ops_init;
235
236 /*
237 * IO engine private data and dlhandle.
238 */
239 void *io_ops_data;
240 void *io_ops_dlhandle;
241
242 /*
243 * Queue depth of io_u's that fio MIGHT do
244 */
245 unsigned int cur_depth;
246
247 /*
248 * io_u's about to be committed
249 */
250 unsigned int io_u_queued;
251
252 /*
253 * io_u's submitted but not completed yet
254 */
255 unsigned int io_u_in_flight;
256
257 /*
258 * List of free and busy io_u's
259 */
260 struct io_u_ring io_u_requeues;
261 struct io_u_queue io_u_freelist;
262 struct io_u_queue io_u_all;
263 pthread_mutex_t io_u_lock;
264 pthread_cond_t free_cond;
265
266 /*
267 * async verify offload
268 */
269 struct flist_head verify_list;
270 pthread_t *verify_threads;
271 unsigned int nr_verify_threads;
272 pthread_cond_t verify_cond;
273 int verify_thread_exit;
274
275 /*
276 * Rate state
277 */
278 uint64_t rate_bps[DDIR_RWDIR_CNT];
279 uint64_t rate_next_io_time[DDIR_RWDIR_CNT];
280 unsigned long rate_bytes[DDIR_RWDIR_CNT];
281 unsigned long rate_blocks[DDIR_RWDIR_CNT];
282 unsigned long long rate_io_issue_bytes[DDIR_RWDIR_CNT];
283 struct timeval lastrate[DDIR_RWDIR_CNT];
284 int64_t last_usec;
285 struct frand_state poisson_state;
286
287 /*
288 * Enforced rate submission/completion workqueue
289 */
290 struct workqueue io_wq;
291
292 uint64_t total_io_size;
293 uint64_t fill_device_size;
294
295 /*
296 * Issue side
297 */
298 uint64_t io_issues[DDIR_RWDIR_CNT];
299 uint64_t io_issue_bytes[DDIR_RWDIR_CNT];
300 uint64_t loops;
301
302 /*
303 * Completions
304 */
305 uint64_t io_blocks[DDIR_RWDIR_CNT];
306 uint64_t this_io_blocks[DDIR_RWDIR_CNT];
307 uint64_t io_bytes[DDIR_RWDIR_CNT];
308 uint64_t this_io_bytes[DDIR_RWDIR_CNT];
309 uint64_t io_skip_bytes;
310 uint64_t zone_bytes;
311 struct fio_mutex *mutex;
312 uint64_t bytes_done[DDIR_RWDIR_CNT];
313
314 /*
315 * State for random io, a bitmap of blocks done vs not done
316 */
317 struct frand_state random_state;
318
319 struct timeval start; /* start of this loop */
320 struct timeval epoch; /* time job was started */
321 unsigned long long unix_epoch; /* Time job was started, unix epoch based. */
322 struct timeval last_issue;
323 long time_offset;
324 struct timeval tv_cache;
325 struct timeval terminate_time;
326 unsigned int tv_cache_nr;
327 unsigned int tv_cache_mask;
328 unsigned int ramp_time_over;
329
330 /*
331 * Time since last latency_window was started
332 */
333 struct timeval latency_ts;
334 unsigned int latency_qd;
335 unsigned int latency_qd_high;
336 unsigned int latency_qd_low;
337 unsigned int latency_failed;
338 uint64_t latency_ios;
339 int latency_end_run;
340
341 /*
342 * read/write mixed workload state
343 */
344 struct frand_state rwmix_state;
345 unsigned long rwmix_issues;
346 enum fio_ddir rwmix_ddir;
347 unsigned int ddir_seq_nr;
348
349 /*
350 * rand/seq mixed workload state
351 */
352 struct frand_state seq_rand_state[DDIR_RWDIR_CNT];
353
354 /*
355 * IO history logs for verification. We use a tree for sorting,
356 * if we are overwriting. Otherwise just use a fifo.
357 */
358 struct rb_root io_hist_tree;
359 struct flist_head io_hist_list;
360 unsigned long io_hist_len;
361
362 /*
363 * For IO replaying
364 */
365 struct flist_head io_log_list;
366
367 /*
368 * For tracking/handling discards
369 */
370 struct flist_head trim_list;
371 unsigned long trim_entries;
372
373 struct flist_head next_rand_list;
374
375 /*
376 * for fileservice, how often to switch to a new file
377 */
378 unsigned int file_service_nr;
379 unsigned int file_service_left;
380 struct fio_file *file_service_file;
381
382 unsigned int sync_file_range_nr;
383
384 /*
385 * For generating file sizes
386 */
387 struct frand_state file_size_state;
388
389 /*
390 * Error counts
391 */
392 unsigned int total_err_count;
393 int first_error;
394
395 struct fio_flow *flow;
396
397 /*
398 * Can be overloaded by profiles
399 */
400 struct prof_io_ops prof_io_ops;
401 void *prof_data;
402
403 void *pinned_mem;
404
405 struct steadystate_data ss;
406
407 char verror[FIO_VERROR_SIZE];
408};
409
410/*
411 * when should interactive ETA output be generated
412 */
413enum {
414 FIO_ETA_AUTO,
415 FIO_ETA_ALWAYS,
416 FIO_ETA_NEVER,
417};
418
419#define __td_verror(td, err, msg, func) \
420 do { \
421 unsigned int ____e = (err); \
422 if ((td)->error) \
423 break; \
424 (td)->error = ____e; \
425 if (!(td)->first_error) \
426 snprintf(td->verror, sizeof(td->verror), "file:%s:%d, func=%s, error=%s", __FILE__, __LINE__, (func), (msg)); \
427 } while (0)
428
429
430#define td_clear_error(td) do { \
431 (td)->error = 0; \
432 if ((td)->parent) \
433 (td)->parent->error = 0; \
434} while (0)
435
436#define td_verror(td, err, func) do { \
437 __td_verror((td), (err), strerror((err)), (func)); \
438 if ((td)->parent) \
439 __td_verror((td)->parent, (err), strerror((err)), (func)); \
440} while (0)
441
442#define td_vmsg(td, err, msg, func) do { \
443 __td_verror((td), (err), (msg), (func)); \
444 if ((td)->parent) \
445 __td_verror((td)->parent, (err), (msg), (func)); \
446} while (0)
447
448#define __fio_stringify_1(x) #x
449#define __fio_stringify(x) __fio_stringify_1(x)
450
451extern int exitall_on_terminate;
452extern unsigned int thread_number;
453extern unsigned int stat_number;
454extern int shm_id;
455extern int groupid;
456extern int output_format;
457extern int append_terse_output;
458extern int temp_stall_ts;
459extern uintptr_t page_mask, page_size;
460extern int read_only;
461extern int eta_print;
462extern int eta_new_line;
463extern unsigned long done_secs;
464extern int fio_gtod_offload;
465extern int fio_gtod_cpu;
466extern enum fio_cs fio_clock_source;
467extern int fio_clock_source_set;
468extern int warnings_fatal;
469extern int terse_version;
470extern int is_backend;
471extern int nr_clients;
472extern int log_syslog;
473extern int status_interval;
474extern const char fio_version_string[];
475extern char *trigger_file;
476extern char *trigger_cmd;
477extern char *trigger_remote_cmd;
478extern long long trigger_timeout;
479extern char *aux_path;
480
481extern struct thread_data *threads;
482
483static inline void fio_ro_check(const struct thread_data *td, struct io_u *io_u)
484{
485 assert(!(io_u->ddir == DDIR_WRITE && !td_write(td)));
486}
487
488#define REAL_MAX_JOBS 4096
489
490static inline int should_fsync(struct thread_data *td)
491{
492 if (td->last_was_sync)
493 return 0;
494 if (td_write(td) || td->o.override_sync)
495 return 1;
496
497 return 0;
498}
499
500/*
501 * Init/option functions
502 */
503extern int __must_check fio_init_options(void);
504extern int __must_check parse_options(int, char **);
505extern int parse_jobs_ini(char *, int, int, int);
506extern int parse_cmd_line(int, char **, int);
507extern int fio_backend(struct sk_out *);
508extern void reset_fio_state(void);
509extern void clear_io_state(struct thread_data *, int);
510extern int fio_options_parse(struct thread_data *, char **, int);
511extern void fio_keywords_init(void);
512extern void fio_keywords_exit(void);
513extern int fio_cmd_option_parse(struct thread_data *, const char *, char *);
514extern int fio_cmd_ioengine_option_parse(struct thread_data *, const char *, char *);
515extern void fio_fill_default_options(struct thread_data *);
516extern int fio_show_option_help(const char *);
517extern void fio_options_set_ioengine_opts(struct option *long_options, struct thread_data *td);
518extern void fio_options_dup_and_init(struct option *);
519extern void fio_options_mem_dupe(struct thread_data *);
520extern void td_fill_rand_seeds(struct thread_data *);
521extern void td_fill_verify_state_seed(struct thread_data *);
522extern void add_job_opts(const char **, int);
523extern char *num2str(uint64_t, int, int, int, int);
524extern int ioengine_load(struct thread_data *);
525extern bool parse_dryrun(void);
526extern int fio_running_or_pending_io_threads(void);
527extern int fio_set_fd_nonblocking(int, const char *);
528extern void sig_show_status(int sig);
529extern struct thread_data *get_global_options(void);
530
531extern uintptr_t page_mask;
532extern uintptr_t page_size;
533extern int initialize_fio(char *envp[]);
534extern void deinitialize_fio(void);
535
536#define N2S_NONE 0
537#define N2S_BITPERSEC 1 /* match unit_base for bit rates */
538#define N2S_PERSEC 2
539#define N2S_BIT 3
540#define N2S_BYTE 4
541#define N2S_BYTEPERSEC 8 /* match unit_base for byte rates */
542
543#define FIO_GETOPT_JOB 0x89000000
544#define FIO_GETOPT_IOENGINE 0x98000000
545#define FIO_NR_OPTIONS (FIO_MAX_OPTS + 128)
546
547/*
548 * ETA/status stuff
549 */
550extern void print_thread_status(void);
551extern void print_status_init(int);
552extern char *fio_uint_to_kmg(unsigned int val);
553
554/*
555 * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it
556 * will never back again. It may cycle between running/verififying/fsyncing.
557 * Once the thread reaches TD_EXITED, it is just waiting for the core to
558 * reap it.
559 */
560enum {
561 TD_NOT_CREATED = 0,
562 TD_CREATED,
563 TD_INITIALIZED,
564 TD_RAMP,
565 TD_SETTING_UP,
566 TD_RUNNING,
567 TD_PRE_READING,
568 TD_VERIFYING,
569 TD_FSYNCING,
570 TD_FINISHING,
571 TD_EXITED,
572 TD_REAPED,
573 TD_LAST,
574 TD_NR,
575};
576
577#define TD_ENG_FLAG_SHIFT 16
578#define TD_ENG_FLAG_MASK ((1U << 16) - 1)
579
580static inline enum fio_ioengine_flags td_ioengine_flags(struct thread_data *td)
581{
582 return (enum fio_ioengine_flags)
583 ((td->flags >> TD_ENG_FLAG_SHIFT) & TD_ENG_FLAG_MASK);
584}
585
586static inline void td_set_ioengine_flags(struct thread_data *td)
587{
588 td->flags |= (td->io_ops->flags << TD_ENG_FLAG_SHIFT);
589}
590
591static inline bool td_ioengine_flagged(struct thread_data *td,
592 enum fio_ioengine_flags flags)
593{
594 return ((td->flags >> TD_ENG_FLAG_SHIFT) & flags) != 0;
595}
596
597extern void td_set_runstate(struct thread_data *, int);
598extern int td_bump_runstate(struct thread_data *, int);
599extern void td_restore_runstate(struct thread_data *, int);
600extern const char *runstate_to_name(int runstate);
601
602/*
603 * Allow 60 seconds for a job to quit on its own, otherwise reap with
604 * a vengeance.
605 */
606#define FIO_REAP_TIMEOUT 300
607
608#define TERMINATE_ALL (-1U)
609extern void fio_terminate_threads(unsigned int);
610extern void fio_mark_td_terminate(struct thread_data *);
611
612/*
613 * Memory helpers
614 */
615extern int __must_check fio_pin_memory(struct thread_data *);
616extern void fio_unpin_memory(struct thread_data *);
617extern int __must_check allocate_io_mem(struct thread_data *);
618extern void free_io_mem(struct thread_data *);
619extern void free_threads_shm(void);
620
621#ifdef FIO_INTERNAL
622#define PTR_ALIGN(ptr, mask) \
623 (char *) (((uintptr_t) (ptr) + (mask)) & ~(mask))
624#endif
625
626/*
627 * Reset stats after ramp time completes
628 */
629extern void reset_all_stats(struct thread_data *);
630
631/*
632 * blktrace support
633 */
634#ifdef FIO_HAVE_BLKTRACE
635extern int is_blktrace(const char *, int *);
636extern int load_blktrace(struct thread_data *, const char *, int);
637#endif
638
639extern int io_queue_event(struct thread_data *td, struct io_u *io_u, int *ret,
640 enum fio_ddir ddir, uint64_t *bytes_issued, int from_verify,
641 struct timeval *comp_time);
642
643/*
644 * Latency target helpers
645 */
646extern void lat_target_check(struct thread_data *);
647extern void lat_target_init(struct thread_data *);
648extern void lat_target_reset(struct thread_data *);
649
650/*
651 * Iterates all threads/processes within all the defined jobs
652 */
653#define for_each_td(td, i) \
654 for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++)
655#define for_each_file(td, f, i) \
656 if ((td)->files_index) \
657 for ((i) = 0, (f) = (td)->files[0]; \
658 (i) < (td)->o.nr_files && ((f) = (td)->files[i]) != NULL; \
659 (i)++)
660
661#define fio_assert(td, cond) do { \
662 if (!(cond)) { \
663 int *__foo = NULL; \
664 fprintf(stderr, "file:%s:%d, assert %s failed\n", __FILE__, __LINE__, #cond); \
665 td_set_runstate((td), TD_EXITED); \
666 (td)->error = EFAULT; \
667 *__foo = 0; \
668 } \
669} while (0)
670
671static inline bool fio_fill_issue_time(struct thread_data *td)
672{
673 if (td->o.read_iolog_file ||
674 !td->o.disable_clat || !td->o.disable_slat || !td->o.disable_bw)
675 return true;
676
677 return false;
678}
679
680static inline bool __should_check_rate(struct thread_data *td,
681 enum fio_ddir ddir)
682{
683 struct thread_options *o = &td->o;
684
685 /*
686 * If some rate setting was given, we need to check it
687 */
688 if (o->rate[ddir] || o->ratemin[ddir] || o->rate_iops[ddir] ||
689 o->rate_iops_min[ddir])
690 return true;
691
692 return false;
693}
694
695static inline bool should_check_rate(struct thread_data *td)
696{
697 if (td->bytes_done[DDIR_READ] && __should_check_rate(td, DDIR_READ))
698 return true;
699 if (td->bytes_done[DDIR_WRITE] && __should_check_rate(td, DDIR_WRITE))
700 return true;
701 if (td->bytes_done[DDIR_TRIM] && __should_check_rate(td, DDIR_TRIM))
702 return true;
703
704 return false;
705}
706
707static inline unsigned int td_max_bs(struct thread_data *td)
708{
709 unsigned int max_bs;
710
711 max_bs = max(td->o.max_bs[DDIR_READ], td->o.max_bs[DDIR_WRITE]);
712 return max(td->o.max_bs[DDIR_TRIM], max_bs);
713}
714
715static inline unsigned int td_min_bs(struct thread_data *td)
716{
717 unsigned int min_bs;
718
719 min_bs = min(td->o.min_bs[DDIR_READ], td->o.min_bs[DDIR_WRITE]);
720 return min(td->o.min_bs[DDIR_TRIM], min_bs);
721}
722
723static inline bool td_async_processing(struct thread_data *td)
724{
725 return (td->flags & TD_F_NEED_LOCK) != 0;
726}
727
728/*
729 * We currently only need to do locking if we have verifier threads
730 * accessing our internal structures too
731 */
732static inline void td_io_u_lock(struct thread_data *td)
733{
734 if (td_async_processing(td))
735 pthread_mutex_lock(&td->io_u_lock);
736}
737
738static inline void td_io_u_unlock(struct thread_data *td)
739{
740 if (td_async_processing(td))
741 pthread_mutex_unlock(&td->io_u_lock);
742}
743
744static inline void td_io_u_free_notify(struct thread_data *td)
745{
746 if (td_async_processing(td))
747 pthread_cond_signal(&td->free_cond);
748}
749
750static inline void td_flags_clear(struct thread_data *td, unsigned int *flags,
751 unsigned int value)
752{
753 if (!td_async_processing(td))
754 *flags &= ~value;
755 else
756 __sync_fetch_and_and(flags, ~value);
757}
758
759static inline void td_flags_set(struct thread_data *td, unsigned int *flags,
760 unsigned int value)
761{
762 if (!td_async_processing(td))
763 *flags |= value;
764 else
765 __sync_fetch_and_or(flags, value);
766}
767
768extern const char *fio_get_arch_string(int);
769extern const char *fio_get_os_string(int);
770
771#ifdef FIO_INTERNAL
772#define ARRAY_SIZE(x) (sizeof((x)) / (sizeof((x)[0])))
773#define FIELD_SIZE(s, f) (sizeof(((typeof(s))0)->f))
774#endif
775
776enum {
777 __FIO_OUTPUT_TERSE = 0,
778 __FIO_OUTPUT_JSON = 1,
779 __FIO_OUTPUT_NORMAL = 2,
780 __FIO_OUTPUT_JSON_PLUS = 3,
781 FIO_OUTPUT_NR = 4,
782
783 FIO_OUTPUT_TERSE = 1U << __FIO_OUTPUT_TERSE,
784 FIO_OUTPUT_JSON = 1U << __FIO_OUTPUT_JSON,
785 FIO_OUTPUT_NORMAL = 1U << __FIO_OUTPUT_NORMAL,
786 FIO_OUTPUT_JSON_PLUS = 1U << __FIO_OUTPUT_JSON_PLUS,
787};
788
789enum {
790 FIO_RAND_DIST_RANDOM = 0,
791 FIO_RAND_DIST_ZIPF,
792 FIO_RAND_DIST_PARETO,
793 FIO_RAND_DIST_GAUSS,
794 FIO_RAND_DIST_ZONED,
795};
796
797#define FIO_DEF_ZIPF 1.1
798#define FIO_DEF_PARETO 0.2
799
800enum {
801 FIO_RAND_GEN_TAUSWORTHE = 0,
802 FIO_RAND_GEN_LFSR,
803 FIO_RAND_GEN_TAUSWORTHE64,
804};
805
806enum {
807 FIO_CPUS_SHARED = 0,
808 FIO_CPUS_SPLIT,
809};
810
811extern void exec_trigger(const char *);
812extern void check_trigger_file(void);
813
814#endif
fio - Flexible IO Tester