projects / fio.git / blame_incremental
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (non-incremental) | history | HEAD
fio: fix some struct alignment issues
[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 "mutex.h"
24#include "log.h"
25#include "debug.h"
26#include "file.h"
27#include "io_ddir.h"
28#include "ioengines.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 "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
66/*
67 * offset generator types
68 */
69enum {
70 RW_SEQ_SEQ = 0,
71 RW_SEQ_IDENT,
72};
73
74enum {
75 TD_F_VER_BACKLOG = 1U << 0,
76 TD_F_TRIM_BACKLOG = 1U << 1,
77 TD_F_READ_IOLOG = 1U << 2,
78 TD_F_REFILL_BUFFERS = 1U << 3,
79 TD_F_SCRAMBLE_BUFFERS = 1U << 4,
80 TD_F_VER_NONE = 1U << 5,
81 TD_F_PROFILE_OPS = 1U << 6,
82 TD_F_COMPRESS = 1U << 7,
83 TD_F_RESERVED = 1U << 8, /* not used */
84 TD_F_COMPRESS_LOG = 1U << 9,
85 TD_F_VSTATE_SAVED = 1U << 10,
86 TD_F_NEED_LOCK = 1U << 11,
87 TD_F_CHILD = 1U << 12,
88 TD_F_NO_PROGRESS = 1U << 13,
89 TD_F_REGROW_LOGS = 1U << 14,
90};
91
92enum {
93 FIO_RAND_BS_OFF = 0,
94 FIO_RAND_VER_OFF,
95 FIO_RAND_MIX_OFF,
96 FIO_RAND_FILE_OFF,
97 FIO_RAND_BLOCK_OFF,
98 FIO_RAND_FILE_SIZE_OFF,
99 FIO_RAND_TRIM_OFF,
100 FIO_RAND_BUF_OFF,
101 FIO_RAND_SEQ_RAND_READ_OFF,
102 FIO_RAND_SEQ_RAND_WRITE_OFF,
103 FIO_RAND_SEQ_RAND_TRIM_OFF,
104 FIO_RAND_START_DELAY,
105 FIO_DEDUPE_OFF,
106 FIO_RAND_POISSON_OFF,
107 FIO_RAND_ZONE_OFF,
108 FIO_RAND_POISSON2_OFF,
109 FIO_RAND_POISSON3_OFF,
110 FIO_RAND_NR_OFFS,
111};
112
113enum {
114 IO_MODE_INLINE = 0,
115 IO_MODE_OFFLOAD = 1,
116
117 RATE_PROCESS_LINEAR = 0,
118 RATE_PROCESS_POISSON = 1,
119};
120
121enum {
122 F_ADV_NONE = 0,
123 F_ADV_TYPE,
124 F_ADV_RANDOM,
125 F_ADV_SEQUENTIAL,
126};
127
128/*
129 * Per-thread/process specific data. Only used for the network client
130 * for now.
131 */
132void sk_out_assign(struct sk_out *);
133void sk_out_drop(void);
134
135struct zone_split_index {
136 uint8_t size_perc;
137 uint8_t size_perc_prev;
138};
139
140/*
141 * This describes a single thread/process executing a fio job.
142 */
143struct thread_data {
144 struct flist_head opt_list;
145 unsigned long flags;
146 struct thread_options o;
147 void *eo;
148 pthread_t thread;
149 unsigned int thread_number;
150 unsigned int subjob_number;
151 unsigned int groupid;
152 struct thread_stat ts __attribute__ ((aligned));
153
154 int client_type;
155
156 struct io_log *slat_log;
157 struct io_log *clat_log;
158 struct io_log *clat_hist_log;
159 struct io_log *lat_log;
160 struct io_log *bw_log;
161 struct io_log *iops_log;
162
163 struct workqueue log_compress_wq;
164
165 struct thread_data *parent;
166
167 uint64_t stat_io_bytes[DDIR_RWDIR_CNT];
168 struct timeval bw_sample_time;
169
170 uint64_t stat_io_blocks[DDIR_RWDIR_CNT];
171 struct timeval iops_sample_time;
172
173 volatile int update_rusage;
174 struct fio_mutex *rusage_sem;
175 struct rusage ru_start;
176 struct rusage ru_end;
177
178 struct fio_file **files;
179 unsigned char *file_locks;
180 unsigned int files_size;
181 unsigned int files_index;
182 unsigned int nr_open_files;
183 unsigned int nr_done_files;
184 unsigned int nr_normal_files;
185 union {
186 unsigned int next_file;
187 struct frand_state next_file_state;
188 };
189 union {
190 struct zipf_state next_file_zipf;
191 struct gauss_state next_file_gauss;
192 };
193 union {
194 double zipf_theta;
195 double pareto_h;
196 double gauss_dev;
197 };
198 int error;
199 int sig;
200 int done;
201 int stop_io;
202 pid_t pid;
203 char *orig_buffer;
204 size_t orig_buffer_size;
205 volatile int terminate;
206 volatile int runstate;
207 unsigned int last_was_sync;
208 enum fio_ddir last_ddir;
209
210 int mmapfd;
211
212 void *iolog_buf;
213 FILE *iolog_f;
214
215 unsigned long rand_seeds[FIO_RAND_NR_OFFS];
216
217 struct frand_state bsrange_state;
218 struct frand_state verify_state;
219 struct frand_state trim_state;
220 struct frand_state delay_state;
221
222 struct frand_state buf_state;
223 struct frand_state buf_state_prev;
224 struct frand_state dedupe_state;
225 struct frand_state zone_state;
226
227 struct zone_split_index **zone_state_index;
228
229 unsigned int verify_batch;
230 unsigned int trim_batch;
231
232 struct thread_io_list *vstate;
233
234 int shm_id;
235
236 /*
237 * IO engine hooks, contains everything needed to submit an io_u
238 * to any of the available IO engines.
239 */
240 struct ioengine_ops *io_ops;
241 int io_ops_init;
242
243 /*
244 * IO engine private data and dlhandle.
245 */
246 void *io_ops_data;
247 void *io_ops_dlhandle;
248
249 /*
250 * Queue depth of io_u's that fio MIGHT do
251 */
252 unsigned int cur_depth;
253
254 /*
255 * io_u's about to be committed
256 */
257 unsigned int io_u_queued;
258
259 /*
260 * io_u's submitted but not completed yet
261 */
262 unsigned int io_u_in_flight;
263
264 /*
265 * List of free and busy io_u's
266 */
267 struct io_u_ring io_u_requeues;
268 struct io_u_queue io_u_freelist;
269 struct io_u_queue io_u_all;
270 pthread_mutex_t io_u_lock;
271 pthread_cond_t free_cond;
272
273 /*
274 * async verify offload
275 */
276 struct flist_head verify_list;
277 pthread_t *verify_threads;
278 unsigned int nr_verify_threads;
279 pthread_cond_t verify_cond;
280 int verify_thread_exit;
281
282 /*
283 * Rate state
284 */
285 uint64_t rate_bps[DDIR_RWDIR_CNT];
286 uint64_t rate_next_io_time[DDIR_RWDIR_CNT];
287 unsigned long rate_bytes[DDIR_RWDIR_CNT];
288 unsigned long rate_blocks[DDIR_RWDIR_CNT];
289 unsigned long long rate_io_issue_bytes[DDIR_RWDIR_CNT];
290 struct timeval lastrate[DDIR_RWDIR_CNT];
291 int64_t last_usec[DDIR_RWDIR_CNT];
292 struct frand_state poisson_state[DDIR_RWDIR_CNT];
293
294 /*
295 * Enforced rate submission/completion workqueue
296 */
297 struct workqueue io_wq;
298
299 uint64_t total_io_size;
300 uint64_t fill_device_size;
301
302 /*
303 * Issue side
304 */
305 uint64_t io_issues[DDIR_RWDIR_CNT];
306 uint64_t io_issue_bytes[DDIR_RWDIR_CNT];
307 uint64_t loops;
308
309 /*
310 * Completions
311 */
312 uint64_t io_blocks[DDIR_RWDIR_CNT];
313 uint64_t this_io_blocks[DDIR_RWDIR_CNT];
314 uint64_t io_bytes[DDIR_RWDIR_CNT];
315 uint64_t this_io_bytes[DDIR_RWDIR_CNT];
316 uint64_t io_skip_bytes;
317 uint64_t zone_bytes;
318 struct fio_mutex *mutex;
319 uint64_t bytes_done[DDIR_RWDIR_CNT];
320
321 /*
322 * State for random io, a bitmap of blocks done vs not done
323 */
324 struct frand_state random_state;
325
326 struct timeval start; /* start of this loop */
327 struct timeval epoch; /* time job was started */
328 unsigned long long unix_epoch; /* Time job was started, unix epoch based. */
329 struct timeval last_issue;
330 long time_offset;
331 struct timeval tv_cache;
332 struct timeval terminate_time;
333 unsigned int tv_cache_nr;
334 unsigned int tv_cache_mask;
335 unsigned int ramp_time_over;
336
337 /*
338 * Time since last latency_window was started
339 */
340 struct timeval latency_ts;
341 unsigned int latency_qd;
342 unsigned int latency_qd_high;
343 unsigned int latency_qd_low;
344 unsigned int latency_failed;
345 uint64_t latency_ios;
346 int latency_end_run;
347
348 /*
349 * read/write mixed workload state
350 */
351 struct frand_state rwmix_state;
352 unsigned long rwmix_issues;
353 enum fio_ddir rwmix_ddir;
354 unsigned int ddir_seq_nr;
355
356 /*
357 * rand/seq mixed workload state
358 */
359 struct frand_state seq_rand_state[DDIR_RWDIR_CNT];
360
361 /*
362 * IO history logs for verification. We use a tree for sorting,
363 * if we are overwriting. Otherwise just use a fifo.
364 */
365 struct rb_root io_hist_tree;
366 struct flist_head io_hist_list;
367 unsigned long io_hist_len;
368
369 /*
370 * For IO replaying
371 */
372 struct flist_head io_log_list;
373
374 /*
375 * For tracking/handling discards
376 */
377 struct flist_head trim_list;
378 unsigned long trim_entries;
379
380 struct flist_head next_rand_list;
381
382 /*
383 * for fileservice, how often to switch to a new file
384 */
385 unsigned int file_service_nr;
386 unsigned int file_service_left;
387 struct fio_file *file_service_file;
388
389 unsigned int sync_file_range_nr;
390
391 /*
392 * For generating file sizes
393 */
394 struct frand_state file_size_state;
395
396 /*
397 * Error counts
398 */
399 unsigned int total_err_count;
400 int first_error;
401
402 struct fio_flow *flow;
403
404 /*
405 * Can be overloaded by profiles
406 */
407 struct prof_io_ops prof_io_ops;
408 void *prof_data;
409
410 void *pinned_mem;
411
412 struct steadystate_data ss;
413
414 char verror[FIO_VERROR_SIZE];
415
416#ifdef CONFIG_CUDA
417 /*
418 * for GPU memory management
419 */
420 int gpu_dev_cnt;
421 int gpu_dev_id;
422 CUdevice cu_dev;
423 CUcontext cu_ctx;
424 CUdeviceptr dev_mem_ptr;
425#endif
426
427};
428
429/*
430 * when should interactive ETA output be generated
431 */
432enum {
433 FIO_ETA_AUTO,
434 FIO_ETA_ALWAYS,
435 FIO_ETA_NEVER,
436};
437
438#define __td_verror(td, err, msg, func) \
439 do { \
440 unsigned int ____e = (err); \
441 if ((td)->error) \
442 break; \
443 (td)->error = ____e; \
444 if (!(td)->first_error) \
445 snprintf(td->verror, sizeof(td->verror), "file:%s:%d, func=%s, error=%s", __FILE__, __LINE__, (func), (msg)); \
446 } while (0)
447
448
449#define td_clear_error(td) do { \
450 (td)->error = 0; \
451 if ((td)->parent) \
452 (td)->parent->error = 0; \
453} while (0)
454
455#define td_verror(td, err, func) do { \
456 __td_verror((td), (err), strerror((err)), (func)); \
457 if ((td)->parent) \
458 __td_verror((td)->parent, (err), strerror((err)), (func)); \
459} while (0)
460
461#define td_vmsg(td, err, msg, func) do { \
462 __td_verror((td), (err), (msg), (func)); \
463 if ((td)->parent) \
464 __td_verror((td)->parent, (err), (msg), (func)); \
465} while (0)
466
467#define __fio_stringify_1(x) #x
468#define __fio_stringify(x) __fio_stringify_1(x)
469
470extern int exitall_on_terminate;
471extern unsigned int thread_number;
472extern unsigned int stat_number;
473extern int shm_id;
474extern int groupid;
475extern int output_format;
476extern int append_terse_output;
477extern int temp_stall_ts;
478extern uintptr_t page_mask, page_size;
479extern int read_only;
480extern int eta_print;
481extern int eta_new_line;
482extern unsigned long done_secs;
483extern int fio_gtod_offload;
484extern int fio_gtod_cpu;
485extern enum fio_cs fio_clock_source;
486extern int fio_clock_source_set;
487extern int warnings_fatal;
488extern int terse_version;
489extern int is_backend;
490extern int nr_clients;
491extern int log_syslog;
492extern int status_interval;
493extern const char fio_version_string[];
494extern char *trigger_file;
495extern char *trigger_cmd;
496extern char *trigger_remote_cmd;
497extern long long trigger_timeout;
498extern char *aux_path;
499
500extern struct thread_data *threads;
501
502static inline void fio_ro_check(const struct thread_data *td, struct io_u *io_u)
503{
504 assert(!(io_u->ddir == DDIR_WRITE && !td_write(td)));
505}
506
507#define REAL_MAX_JOBS 4096
508
509static inline int should_fsync(struct thread_data *td)
510{
511 if (td->last_was_sync)
512 return 0;
513 if (td_write(td) || td->o.override_sync)
514 return 1;
515
516 return 0;
517}
518
519/*
520 * Init/option functions
521 */
522extern int __must_check fio_init_options(void);
523extern int __must_check parse_options(int, char **);
524extern int parse_jobs_ini(char *, int, int, int);
525extern int parse_cmd_line(int, char **, int);
526extern int fio_backend(struct sk_out *);
527extern void reset_fio_state(void);
528extern void clear_io_state(struct thread_data *, int);
529extern int fio_options_parse(struct thread_data *, char **, int);
530extern void fio_keywords_init(void);
531extern void fio_keywords_exit(void);
532extern int fio_cmd_option_parse(struct thread_data *, const char *, char *);
533extern int fio_cmd_ioengine_option_parse(struct thread_data *, const char *, char *);
534extern void fio_fill_default_options(struct thread_data *);
535extern int fio_show_option_help(const char *);
536extern void fio_options_set_ioengine_opts(struct option *long_options, struct thread_data *td);
537extern void fio_options_dup_and_init(struct option *);
538extern void fio_options_mem_dupe(struct thread_data *);
539extern void td_fill_rand_seeds(struct thread_data *);
540extern void td_fill_verify_state_seed(struct thread_data *);
541extern void add_job_opts(const char **, int);
542extern int ioengine_load(struct thread_data *);
543extern bool parse_dryrun(void);
544extern int fio_running_or_pending_io_threads(void);
545extern int fio_set_fd_nonblocking(int, const char *);
546extern void sig_show_status(int sig);
547extern struct thread_data *get_global_options(void);
548
549extern uintptr_t page_mask;
550extern uintptr_t page_size;
551extern int initialize_fio(char *envp[]);
552extern void deinitialize_fio(void);
553
554#define FIO_GETOPT_JOB 0x89000000
555#define FIO_GETOPT_IOENGINE 0x98000000
556#define FIO_NR_OPTIONS (FIO_MAX_OPTS + 128)
557
558/*
559 * ETA/status stuff
560 */
561extern void print_thread_status(void);
562extern void print_status_init(int);
563extern char *fio_uint_to_kmg(unsigned int val);
564
565/*
566 * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it
567 * will never back again. It may cycle between running/verififying/fsyncing.
568 * Once the thread reaches TD_EXITED, it is just waiting for the core to
569 * reap it.
570 */
571enum {
572 TD_NOT_CREATED = 0,
573 TD_CREATED,
574 TD_INITIALIZED,
575 TD_RAMP,
576 TD_SETTING_UP,
577 TD_RUNNING,
578 TD_PRE_READING,
579 TD_VERIFYING,
580 TD_FSYNCING,
581 TD_FINISHING,
582 TD_EXITED,
583 TD_REAPED,
584 TD_LAST,
585 TD_NR,
586};
587
588#define TD_ENG_FLAG_SHIFT 16
589#define TD_ENG_FLAG_MASK ((1U << 16) - 1)
590
591static inline enum fio_ioengine_flags td_ioengine_flags(struct thread_data *td)
592{
593 return (enum fio_ioengine_flags)
594 ((td->flags >> TD_ENG_FLAG_SHIFT) & TD_ENG_FLAG_MASK);
595}
596
597static inline void td_set_ioengine_flags(struct thread_data *td)
598{
599 td->flags = (~(TD_ENG_FLAG_MASK << TD_ENG_FLAG_SHIFT) & td->flags) |
600 (td->io_ops->flags << TD_ENG_FLAG_SHIFT);
601}
602
603static inline bool td_ioengine_flagged(struct thread_data *td,
604 enum fio_ioengine_flags flags)
605{
606 return ((td->flags >> TD_ENG_FLAG_SHIFT) & flags) != 0;
607}
608
609extern void td_set_runstate(struct thread_data *, int);
610extern int td_bump_runstate(struct thread_data *, int);
611extern void td_restore_runstate(struct thread_data *, int);
612extern const char *runstate_to_name(int runstate);
613
614/*
615 * Allow 60 seconds for a job to quit on its own, otherwise reap with
616 * a vengeance.
617 */
618#define FIO_REAP_TIMEOUT 300
619
620#define TERMINATE_ALL (-1U)
621extern void fio_terminate_threads(unsigned int);
622extern void fio_mark_td_terminate(struct thread_data *);
623
624/*
625 * Memory helpers
626 */
627extern int __must_check fio_pin_memory(struct thread_data *);
628extern void fio_unpin_memory(struct thread_data *);
629extern int __must_check allocate_io_mem(struct thread_data *);
630extern void free_io_mem(struct thread_data *);
631extern void free_threads_shm(void);
632
633#ifdef FIO_INTERNAL
634#define PTR_ALIGN(ptr, mask) \
635 (char *) (((uintptr_t) (ptr) + (mask)) & ~(mask))
636#endif
637
638/*
639 * Reset stats after ramp time completes
640 */
641extern void reset_all_stats(struct thread_data *);
642
643/*
644 * blktrace support
645 */
646#ifdef FIO_HAVE_BLKTRACE
647extern int is_blktrace(const char *, int *);
648extern int load_blktrace(struct thread_data *, const char *, int);
649#endif
650
651extern int io_queue_event(struct thread_data *td, struct io_u *io_u, int *ret,
652 enum fio_ddir ddir, uint64_t *bytes_issued, int from_verify,
653 struct timeval *comp_time);
654
655/*
656 * Latency target helpers
657 */
658extern void lat_target_check(struct thread_data *);
659extern void lat_target_init(struct thread_data *);
660extern void lat_target_reset(struct thread_data *);
661
662/*
663 * Iterates all threads/processes within all the defined jobs
664 */
665#define for_each_td(td, i) \
666 for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++)
667#define for_each_file(td, f, i) \
668 if ((td)->files_index) \
669 for ((i) = 0, (f) = (td)->files[0]; \
670 (i) < (td)->o.nr_files && ((f) = (td)->files[i]) != NULL; \
671 (i)++)
672
673#define fio_assert(td, cond) do { \
674 if (!(cond)) { \
675 int *__foo = NULL; \
676 fprintf(stderr, "file:%s:%d, assert %s failed\n", __FILE__, __LINE__, #cond); \
677 td_set_runstate((td), TD_EXITED); \
678 (td)->error = EFAULT; \
679 *__foo = 0; \
680 } \
681} while (0)
682
683static inline bool fio_fill_issue_time(struct thread_data *td)
684{
685 if (td->o.read_iolog_file ||
686 !td->o.disable_clat || !td->o.disable_slat || !td->o.disable_bw)
687 return true;
688
689 return false;
690}
691
692static inline bool __should_check_rate(struct thread_data *td,
693 enum fio_ddir ddir)
694{
695 struct thread_options *o = &td->o;
696
697 /*
698 * If some rate setting was given, we need to check it
699 */
700 if (o->rate[ddir] || o->ratemin[ddir] || o->rate_iops[ddir] ||
701 o->rate_iops_min[ddir])
702 return true;
703
704 return false;
705}
706
707static inline bool should_check_rate(struct thread_data *td)
708{
709 if (td->bytes_done[DDIR_READ] && __should_check_rate(td, DDIR_READ))
710 return true;
711 if (td->bytes_done[DDIR_WRITE] && __should_check_rate(td, DDIR_WRITE))
712 return true;
713 if (td->bytes_done[DDIR_TRIM] && __should_check_rate(td, DDIR_TRIM))
714 return true;
715
716 return false;
717}
718
719static inline unsigned int td_max_bs(struct thread_data *td)
720{
721 unsigned int max_bs;
722
723 max_bs = max(td->o.max_bs[DDIR_READ], td->o.max_bs[DDIR_WRITE]);
724 return max(td->o.max_bs[DDIR_TRIM], max_bs);
725}
726
727static inline unsigned int td_min_bs(struct thread_data *td)
728{
729 unsigned int min_bs;
730
731 min_bs = min(td->o.min_bs[DDIR_READ], td->o.min_bs[DDIR_WRITE]);
732 return min(td->o.min_bs[DDIR_TRIM], min_bs);
733}
734
735static inline bool td_async_processing(struct thread_data *td)
736{
737 return (td->flags & TD_F_NEED_LOCK) != 0;
738}
739
740/*
741 * We currently only need to do locking if we have verifier threads
742 * accessing our internal structures too
743 */
744static inline void td_io_u_lock(struct thread_data *td)
745{
746 if (td_async_processing(td))
747 pthread_mutex_lock(&td->io_u_lock);
748}
749
750static inline void td_io_u_unlock(struct thread_data *td)
751{
752 if (td_async_processing(td))
753 pthread_mutex_unlock(&td->io_u_lock);
754}
755
756static inline void td_io_u_free_notify(struct thread_data *td)
757{
758 if (td_async_processing(td))
759 pthread_cond_signal(&td->free_cond);
760}
761
762static inline void td_flags_clear(struct thread_data *td, unsigned int *flags,
763 unsigned int value)
764{
765 if (!td_async_processing(td))
766 *flags &= ~value;
767 else
768 __sync_fetch_and_and(flags, ~value);
769}
770
771static inline void td_flags_set(struct thread_data *td, unsigned int *flags,
772 unsigned int value)
773{
774 if (!td_async_processing(td))
775 *flags |= value;
776 else
777 __sync_fetch_and_or(flags, value);
778}
779
780extern const char *fio_get_arch_string(int);
781extern const char *fio_get_os_string(int);
782
783#ifdef FIO_INTERNAL
784#define ARRAY_SIZE(x) (sizeof((x)) / (sizeof((x)[0])))
785#define FIELD_SIZE(s, f) (sizeof(((typeof(s))0)->f))
786#endif
787
788enum {
789 __FIO_OUTPUT_TERSE = 0,
790 __FIO_OUTPUT_JSON = 1,
791 __FIO_OUTPUT_NORMAL = 2,
792 __FIO_OUTPUT_JSON_PLUS = 3,
793 FIO_OUTPUT_NR = 4,
794
795 FIO_OUTPUT_TERSE = 1U << __FIO_OUTPUT_TERSE,
796 FIO_OUTPUT_JSON = 1U << __FIO_OUTPUT_JSON,
797 FIO_OUTPUT_NORMAL = 1U << __FIO_OUTPUT_NORMAL,
798 FIO_OUTPUT_JSON_PLUS = 1U << __FIO_OUTPUT_JSON_PLUS,
799};
800
801enum {
802 FIO_RAND_DIST_RANDOM = 0,
803 FIO_RAND_DIST_ZIPF,
804 FIO_RAND_DIST_PARETO,
805 FIO_RAND_DIST_GAUSS,
806 FIO_RAND_DIST_ZONED,
807};
808
809#define FIO_DEF_ZIPF 1.1
810#define FIO_DEF_PARETO 0.2
811
812enum {
813 FIO_RAND_GEN_TAUSWORTHE = 0,
814 FIO_RAND_GEN_LFSR,
815 FIO_RAND_GEN_TAUSWORTHE64,
816};
817
818enum {
819 FIO_CPUS_SHARED = 0,
820 FIO_CPUS_SPLIT,
821};
822
823extern void exec_trigger(const char *);
824extern void check_trigger_file(void);
825
826#endif
fio - Flexible IO Tester