projects / fio.git / blame_incremental
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (non-incremental) | history | HEAD
time: ensure that offload mode switches parent out of ramp
[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 TD_F_MMAP_KEEP = 1U << 15,
91};
92
93enum {
94 FIO_RAND_BS_OFF = 0,
95 FIO_RAND_BS1_OFF,
96 FIO_RAND_BS2_OFF,
97 FIO_RAND_VER_OFF,
98 FIO_RAND_MIX_OFF,
99 FIO_RAND_FILE_OFF,
100 FIO_RAND_BLOCK_OFF,
101 FIO_RAND_FILE_SIZE_OFF,
102 FIO_RAND_TRIM_OFF,
103 FIO_RAND_BUF_OFF,
104 FIO_RAND_SEQ_RAND_READ_OFF,
105 FIO_RAND_SEQ_RAND_WRITE_OFF,
106 FIO_RAND_SEQ_RAND_TRIM_OFF,
107 FIO_RAND_START_DELAY,
108 FIO_DEDUPE_OFF,
109 FIO_RAND_POISSON_OFF,
110 FIO_RAND_ZONE_OFF,
111 FIO_RAND_POISSON2_OFF,
112 FIO_RAND_POISSON3_OFF,
113 FIO_RAND_NR_OFFS,
114};
115
116enum {
117 IO_MODE_INLINE = 0,
118 IO_MODE_OFFLOAD = 1,
119
120 RATE_PROCESS_LINEAR = 0,
121 RATE_PROCESS_POISSON = 1,
122};
123
124enum {
125 F_ADV_NONE = 0,
126 F_ADV_TYPE,
127 F_ADV_RANDOM,
128 F_ADV_SEQUENTIAL,
129};
130
131/*
132 * Per-thread/process specific data. Only used for the network client
133 * for now.
134 */
135void sk_out_assign(struct sk_out *);
136void sk_out_drop(void);
137
138struct zone_split_index {
139 uint8_t size_perc;
140 uint8_t size_perc_prev;
141};
142
143/*
144 * This describes a single thread/process executing a fio job.
145 */
146struct thread_data {
147 struct flist_head opt_list;
148 unsigned long flags;
149 struct thread_options o;
150 void *eo;
151 pthread_t thread;
152 unsigned int thread_number;
153 unsigned int subjob_number;
154 unsigned int groupid;
155 struct thread_stat ts __attribute__ ((aligned(8)));
156
157 int client_type;
158
159 struct io_log *slat_log;
160 struct io_log *clat_log;
161 struct io_log *clat_hist_log;
162 struct io_log *lat_log;
163 struct io_log *bw_log;
164 struct io_log *iops_log;
165
166 struct workqueue log_compress_wq;
167
168 struct thread_data *parent;
169
170 uint64_t stat_io_bytes[DDIR_RWDIR_CNT];
171 struct timespec bw_sample_time;
172
173 uint64_t stat_io_blocks[DDIR_RWDIR_CNT];
174 struct timespec iops_sample_time;
175
176 volatile int update_rusage;
177 struct fio_mutex *rusage_sem;
178 struct rusage ru_start;
179 struct rusage ru_end;
180
181 struct fio_file **files;
182 unsigned char *file_locks;
183 unsigned int files_size;
184 unsigned int files_index;
185 unsigned int nr_open_files;
186 unsigned int nr_done_files;
187 unsigned int nr_normal_files;
188 union {
189 unsigned int next_file;
190 struct frand_state next_file_state;
191 };
192 union {
193 struct zipf_state next_file_zipf;
194 struct gauss_state next_file_gauss;
195 };
196 union {
197 double zipf_theta;
198 double pareto_h;
199 double gauss_dev;
200 };
201 int error;
202 int sig;
203 int done;
204 int stop_io;
205 pid_t pid;
206 char *orig_buffer;
207 size_t orig_buffer_size;
208 volatile int terminate;
209 volatile int runstate;
210 unsigned int last_was_sync;
211 enum fio_ddir last_ddir;
212
213 int mmapfd;
214
215 void *iolog_buf;
216 FILE *iolog_f;
217
218 unsigned long rand_seeds[FIO_RAND_NR_OFFS];
219
220 struct frand_state bsrange_state[DDIR_RWDIR_CNT];
221 struct frand_state verify_state;
222 struct frand_state trim_state;
223 struct frand_state delay_state;
224
225 struct frand_state buf_state;
226 struct frand_state buf_state_prev;
227 struct frand_state dedupe_state;
228 struct frand_state zone_state;
229
230 struct zone_split_index **zone_state_index;
231
232 unsigned int verify_batch;
233 unsigned int trim_batch;
234
235 struct thread_io_list *vstate;
236
237 int shm_id;
238
239 /*
240 * IO engine hooks, contains everything needed to submit an io_u
241 * to any of the available IO engines.
242 */
243 struct ioengine_ops *io_ops;
244 int io_ops_init;
245
246 /*
247 * IO engine private data and dlhandle.
248 */
249 void *io_ops_data;
250 void *io_ops_dlhandle;
251
252 /*
253 * Queue depth of io_u's that fio MIGHT do
254 */
255 unsigned int cur_depth;
256
257 /*
258 * io_u's about to be committed
259 */
260 unsigned int io_u_queued;
261
262 /*
263 * io_u's submitted but not completed yet
264 */
265 unsigned int io_u_in_flight;
266
267 /*
268 * List of free and busy io_u's
269 */
270 struct io_u_ring io_u_requeues;
271 struct io_u_queue io_u_freelist;
272 struct io_u_queue io_u_all;
273 pthread_mutex_t io_u_lock;
274 pthread_cond_t free_cond;
275
276 /*
277 * async verify offload
278 */
279 struct flist_head verify_list;
280 pthread_t *verify_threads;
281 unsigned int nr_verify_threads;
282 pthread_cond_t verify_cond;
283 int verify_thread_exit;
284
285 /*
286 * Rate state
287 */
288 uint64_t rate_bps[DDIR_RWDIR_CNT];
289 uint64_t rate_next_io_time[DDIR_RWDIR_CNT];
290 unsigned long rate_bytes[DDIR_RWDIR_CNT];
291 unsigned long rate_blocks[DDIR_RWDIR_CNT];
292 unsigned long long rate_io_issue_bytes[DDIR_RWDIR_CNT];
293 struct timespec lastrate[DDIR_RWDIR_CNT];
294 int64_t last_usec[DDIR_RWDIR_CNT];
295 struct frand_state poisson_state[DDIR_RWDIR_CNT];
296
297 /*
298 * Enforced rate submission/completion workqueue
299 */
300 struct workqueue io_wq;
301
302 uint64_t total_io_size;
303 uint64_t fill_device_size;
304
305 /*
306 * Issue side
307 */
308 uint64_t io_issues[DDIR_RWDIR_CNT];
309 uint64_t io_issue_bytes[DDIR_RWDIR_CNT];
310 uint64_t loops;
311
312 /*
313 * Completions
314 */
315 uint64_t io_blocks[DDIR_RWDIR_CNT];
316 uint64_t this_io_blocks[DDIR_RWDIR_CNT];
317 uint64_t io_bytes[DDIR_RWDIR_CNT];
318 uint64_t this_io_bytes[DDIR_RWDIR_CNT];
319 uint64_t io_skip_bytes;
320 uint64_t zone_bytes;
321 struct fio_mutex *mutex;
322 uint64_t bytes_done[DDIR_RWDIR_CNT];
323
324 /*
325 * State for random io, a bitmap of blocks done vs not done
326 */
327 struct frand_state random_state;
328
329 struct timespec start; /* start of this loop */
330 struct timespec epoch; /* time job was started */
331 unsigned long long unix_epoch; /* Time job was started, unix epoch based. */
332 struct timespec last_issue;
333 long time_offset;
334 struct timespec ts_cache;
335 struct timespec terminate_time;
336 unsigned int ts_cache_nr;
337 unsigned int ts_cache_mask;
338 unsigned int ramp_time_over;
339
340 /*
341 * Time since last latency_window was started
342 */
343 struct timespec latency_ts;
344 unsigned int latency_qd;
345 unsigned int latency_qd_high;
346 unsigned int latency_qd_low;
347 unsigned int latency_failed;
348 uint64_t latency_ios;
349 int latency_end_run;
350
351 /*
352 * read/write mixed workload state
353 */
354 struct frand_state rwmix_state;
355 unsigned long rwmix_issues;
356 enum fio_ddir rwmix_ddir;
357 unsigned int ddir_seq_nr;
358
359 /*
360 * rand/seq mixed workload state
361 */
362 struct frand_state seq_rand_state[DDIR_RWDIR_CNT];
363
364 /*
365 * IO history logs for verification. We use a tree for sorting,
366 * if we are overwriting. Otherwise just use a fifo.
367 */
368 struct rb_root io_hist_tree;
369 struct flist_head io_hist_list;
370 unsigned long io_hist_len;
371
372 /*
373 * For IO replaying
374 */
375 struct flist_head io_log_list;
376
377 /*
378 * For tracking/handling discards
379 */
380 struct flist_head trim_list;
381 unsigned long trim_entries;
382
383 struct flist_head next_rand_list;
384
385 /*
386 * for fileservice, how often to switch to a new file
387 */
388 unsigned int file_service_nr;
389 unsigned int file_service_left;
390 struct fio_file *file_service_file;
391
392 unsigned int sync_file_range_nr;
393
394 /*
395 * For generating file sizes
396 */
397 struct frand_state file_size_state;
398
399 /*
400 * Error counts
401 */
402 unsigned int total_err_count;
403 int first_error;
404
405 struct fio_flow *flow;
406
407 /*
408 * Can be overloaded by profiles
409 */
410 struct prof_io_ops prof_io_ops;
411 void *prof_data;
412
413 void *pinned_mem;
414
415 struct steadystate_data ss;
416
417 char verror[FIO_VERROR_SIZE];
418
419#ifdef CONFIG_CUDA
420 /*
421 * for GPU memory management
422 */
423 int gpu_dev_cnt;
424 int gpu_dev_id;
425 CUdevice cu_dev;
426 CUcontext cu_ctx;
427 CUdeviceptr dev_mem_ptr;
428#endif
429
430};
431
432/*
433 * when should interactive ETA output be generated
434 */
435enum {
436 FIO_ETA_AUTO,
437 FIO_ETA_ALWAYS,
438 FIO_ETA_NEVER,
439};
440
441#define __td_verror(td, err, msg, func) \
442 do { \
443 unsigned int ____e = (err); \
444 if ((td)->error) \
445 break; \
446 (td)->error = ____e; \
447 if (!(td)->first_error) \
448 snprintf(td->verror, sizeof(td->verror), "file:%s:%d, func=%s, error=%s", __FILE__, __LINE__, (func), (msg)); \
449 } while (0)
450
451
452#define td_clear_error(td) do { \
453 (td)->error = 0; \
454 if ((td)->parent) \
455 (td)->parent->error = 0; \
456} while (0)
457
458#define td_verror(td, err, func) do { \
459 __td_verror((td), (err), strerror((err)), (func)); \
460 if ((td)->parent) \
461 __td_verror((td)->parent, (err), strerror((err)), (func)); \
462} while (0)
463
464#define td_vmsg(td, err, msg, func) do { \
465 __td_verror((td), (err), (msg), (func)); \
466 if ((td)->parent) \
467 __td_verror((td)->parent, (err), (msg), (func)); \
468} while (0)
469
470#define __fio_stringify_1(x) #x
471#define __fio_stringify(x) __fio_stringify_1(x)
472
473extern int exitall_on_terminate;
474extern unsigned int thread_number;
475extern unsigned int stat_number;
476extern int shm_id;
477extern int groupid;
478extern int output_format;
479extern int append_terse_output;
480extern int temp_stall_ts;
481extern uintptr_t page_mask, page_size;
482extern int read_only;
483extern int eta_print;
484extern int eta_new_line;
485extern unsigned long done_secs;
486extern int fio_gtod_offload;
487extern int fio_gtod_cpu;
488extern enum fio_cs fio_clock_source;
489extern int fio_clock_source_set;
490extern int warnings_fatal;
491extern int terse_version;
492extern int is_backend;
493extern int nr_clients;
494extern int log_syslog;
495extern int status_interval;
496extern const char fio_version_string[];
497extern char *trigger_file;
498extern char *trigger_cmd;
499extern char *trigger_remote_cmd;
500extern long long trigger_timeout;
501extern char *aux_path;
502
503extern struct thread_data *threads;
504
505static inline void fio_ro_check(const struct thread_data *td, struct io_u *io_u)
506{
507 assert(!(io_u->ddir == DDIR_WRITE && !td_write(td)));
508}
509
510#define REAL_MAX_JOBS 4096
511
512static inline int should_fsync(struct thread_data *td)
513{
514 if (td->last_was_sync)
515 return 0;
516 if (td_write(td) || td->o.override_sync)
517 return 1;
518
519 return 0;
520}
521
522/*
523 * Init/option functions
524 */
525extern int __must_check fio_init_options(void);
526extern int __must_check parse_options(int, char **);
527extern int parse_jobs_ini(char *, int, int, int);
528extern int parse_cmd_line(int, char **, int);
529extern int fio_backend(struct sk_out *);
530extern void reset_fio_state(void);
531extern void clear_io_state(struct thread_data *, int);
532extern int fio_options_parse(struct thread_data *, char **, int);
533extern void fio_keywords_init(void);
534extern void fio_keywords_exit(void);
535extern int fio_cmd_option_parse(struct thread_data *, const char *, char *);
536extern int fio_cmd_ioengine_option_parse(struct thread_data *, const char *, char *);
537extern void fio_fill_default_options(struct thread_data *);
538extern int fio_show_option_help(const char *);
539extern void fio_options_set_ioengine_opts(struct option *long_options, struct thread_data *td);
540extern void fio_options_dup_and_init(struct option *);
541extern void fio_options_mem_dupe(struct thread_data *);
542extern void td_fill_rand_seeds(struct thread_data *);
543extern void td_fill_verify_state_seed(struct thread_data *);
544extern void add_job_opts(const char **, int);
545extern int ioengine_load(struct thread_data *);
546extern bool parse_dryrun(void);
547extern int fio_running_or_pending_io_threads(void);
548extern int fio_set_fd_nonblocking(int, const char *);
549extern void sig_show_status(int sig);
550extern struct thread_data *get_global_options(void);
551
552extern uintptr_t page_mask;
553extern uintptr_t page_size;
554extern int initialize_fio(char *envp[]);
555extern void deinitialize_fio(void);
556
557#define FIO_GETOPT_JOB 0x89000000
558#define FIO_GETOPT_IOENGINE 0x98000000
559#define FIO_NR_OPTIONS (FIO_MAX_OPTS + 128)
560
561/*
562 * ETA/status stuff
563 */
564extern void print_thread_status(void);
565extern void print_status_init(int);
566extern char *fio_uint_to_kmg(unsigned int val);
567
568/*
569 * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it
570 * will never back again. It may cycle between running/verififying/fsyncing.
571 * Once the thread reaches TD_EXITED, it is just waiting for the core to
572 * reap it.
573 */
574enum {
575 TD_NOT_CREATED = 0,
576 TD_CREATED,
577 TD_INITIALIZED,
578 TD_RAMP,
579 TD_SETTING_UP,
580 TD_RUNNING,
581 TD_PRE_READING,
582 TD_VERIFYING,
583 TD_FSYNCING,
584 TD_FINISHING,
585 TD_EXITED,
586 TD_REAPED,
587 TD_LAST,
588 TD_NR,
589};
590
591#define TD_ENG_FLAG_SHIFT 16
592#define TD_ENG_FLAG_MASK ((1U << 16) - 1)
593
594static inline enum fio_ioengine_flags td_ioengine_flags(struct thread_data *td)
595{
596 return (enum fio_ioengine_flags)
597 ((td->flags >> TD_ENG_FLAG_SHIFT) & TD_ENG_FLAG_MASK);
598}
599
600static inline void td_set_ioengine_flags(struct thread_data *td)
601{
602 td->flags = (~(TD_ENG_FLAG_MASK << TD_ENG_FLAG_SHIFT) & td->flags) |
603 (td->io_ops->flags << TD_ENG_FLAG_SHIFT);
604}
605
606static inline bool td_ioengine_flagged(struct thread_data *td,
607 enum fio_ioengine_flags flags)
608{
609 return ((td->flags >> TD_ENG_FLAG_SHIFT) & flags) != 0;
610}
611
612extern void td_set_runstate(struct thread_data *, int);
613extern int td_bump_runstate(struct thread_data *, int);
614extern void td_restore_runstate(struct thread_data *, int);
615extern const char *runstate_to_name(int runstate);
616
617/*
618 * Allow 60 seconds for a job to quit on its own, otherwise reap with
619 * a vengeance.
620 */
621#define FIO_REAP_TIMEOUT 300
622
623#define TERMINATE_ALL (-1U)
624extern void fio_terminate_threads(unsigned int);
625extern void fio_mark_td_terminate(struct thread_data *);
626
627/*
628 * Memory helpers
629 */
630extern int __must_check fio_pin_memory(struct thread_data *);
631extern void fio_unpin_memory(struct thread_data *);
632extern int __must_check allocate_io_mem(struct thread_data *);
633extern void free_io_mem(struct thread_data *);
634extern void free_threads_shm(void);
635
636#ifdef FIO_INTERNAL
637#define PTR_ALIGN(ptr, mask) \
638 (char *) (((uintptr_t) (ptr) + (mask)) & ~(mask))
639#endif
640
641/*
642 * Reset stats after ramp time completes
643 */
644extern void reset_all_stats(struct thread_data *);
645
646extern int io_queue_event(struct thread_data *td, struct io_u *io_u, int *ret,
647 enum fio_ddir ddir, uint64_t *bytes_issued, int from_verify,
648 struct timespec *comp_time);
649
650/*
651 * Latency target helpers
652 */
653extern void lat_target_check(struct thread_data *);
654extern void lat_target_init(struct thread_data *);
655extern void lat_target_reset(struct thread_data *);
656
657/*
658 * Iterates all threads/processes within all the defined jobs
659 */
660#define for_each_td(td, i) \
661 for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++)
662#define for_each_file(td, f, i) \
663 if ((td)->files_index) \
664 for ((i) = 0, (f) = (td)->files[0]; \
665 (i) < (td)->o.nr_files && ((f) = (td)->files[i]) != NULL; \
666 (i)++)
667
668#define fio_assert(td, cond) do { \
669 if (!(cond)) { \
670 int *__foo = NULL; \
671 fprintf(stderr, "file:%s:%d, assert %s failed\n", __FILE__, __LINE__, #cond); \
672 td_set_runstate((td), TD_EXITED); \
673 (td)->error = EFAULT; \
674 *__foo = 0; \
675 } \
676} while (0)
677
678static inline bool fio_fill_issue_time(struct thread_data *td)
679{
680 if (td->o.read_iolog_file ||
681 !td->o.disable_clat || !td->o.disable_slat || !td->o.disable_bw)
682 return true;
683
684 return false;
685}
686
687static inline bool __should_check_rate(struct thread_data *td,
688 enum fio_ddir ddir)
689{
690 struct thread_options *o = &td->o;
691
692 /*
693 * If some rate setting was given, we need to check it
694 */
695 if (o->rate[ddir] || o->ratemin[ddir] || o->rate_iops[ddir] ||
696 o->rate_iops_min[ddir])
697 return true;
698
699 return false;
700}
701
702static inline bool should_check_rate(struct thread_data *td)
703{
704 if (td->bytes_done[DDIR_READ] && __should_check_rate(td, DDIR_READ))
705 return true;
706 if (td->bytes_done[DDIR_WRITE] && __should_check_rate(td, DDIR_WRITE))
707 return true;
708 if (td->bytes_done[DDIR_TRIM] && __should_check_rate(td, DDIR_TRIM))
709 return true;
710
711 return false;
712}
713
714static inline unsigned int td_max_bs(struct thread_data *td)
715{
716 unsigned int max_bs;
717
718 max_bs = max(td->o.max_bs[DDIR_READ], td->o.max_bs[DDIR_WRITE]);
719 return max(td->o.max_bs[DDIR_TRIM], max_bs);
720}
721
722static inline unsigned int td_min_bs(struct thread_data *td)
723{
724 unsigned int min_bs;
725
726 min_bs = min(td->o.min_bs[DDIR_READ], td->o.min_bs[DDIR_WRITE]);
727 return min(td->o.min_bs[DDIR_TRIM], min_bs);
728}
729
730static inline bool td_async_processing(struct thread_data *td)
731{
732 return (td->flags & TD_F_NEED_LOCK) != 0;
733}
734
735/*
736 * We currently only need to do locking if we have verifier threads
737 * accessing our internal structures too
738 */
739static inline void td_io_u_lock(struct thread_data *td)
740{
741 if (td_async_processing(td))
742 pthread_mutex_lock(&td->io_u_lock);
743}
744
745static inline void td_io_u_unlock(struct thread_data *td)
746{
747 if (td_async_processing(td))
748 pthread_mutex_unlock(&td->io_u_lock);
749}
750
751static inline void td_io_u_free_notify(struct thread_data *td)
752{
753 if (td_async_processing(td))
754 pthread_cond_signal(&td->free_cond);
755}
756
757static inline void td_flags_clear(struct thread_data *td, unsigned int *flags,
758 unsigned int value)
759{
760 if (!td_async_processing(td))
761 *flags &= ~value;
762 else
763 __sync_fetch_and_and(flags, ~value);
764}
765
766static inline void td_flags_set(struct thread_data *td, unsigned int *flags,
767 unsigned int value)
768{
769 if (!td_async_processing(td))
770 *flags |= value;
771 else
772 __sync_fetch_and_or(flags, value);
773}
774
775extern const char *fio_get_arch_string(int);
776extern const char *fio_get_os_string(int);
777
778#ifdef FIO_INTERNAL
779#define ARRAY_SIZE(x) (sizeof((x)) / (sizeof((x)[0])))
780#define FIELD_SIZE(s, f) (sizeof(((typeof(s))0)->f))
781#endif
782
783enum {
784 __FIO_OUTPUT_TERSE = 0,
785 __FIO_OUTPUT_JSON = 1,
786 __FIO_OUTPUT_NORMAL = 2,
787 __FIO_OUTPUT_JSON_PLUS = 3,
788 FIO_OUTPUT_NR = 4,
789
790 FIO_OUTPUT_TERSE = 1U << __FIO_OUTPUT_TERSE,
791 FIO_OUTPUT_JSON = 1U << __FIO_OUTPUT_JSON,
792 FIO_OUTPUT_NORMAL = 1U << __FIO_OUTPUT_NORMAL,
793 FIO_OUTPUT_JSON_PLUS = 1U << __FIO_OUTPUT_JSON_PLUS,
794};
795
796enum {
797 FIO_RAND_DIST_RANDOM = 0,
798 FIO_RAND_DIST_ZIPF,
799 FIO_RAND_DIST_PARETO,
800 FIO_RAND_DIST_GAUSS,
801 FIO_RAND_DIST_ZONED,
802};
803
804#define FIO_DEF_ZIPF 1.1
805#define FIO_DEF_PARETO 0.2
806
807enum {
808 FIO_RAND_GEN_TAUSWORTHE = 0,
809 FIO_RAND_GEN_LFSR,
810 FIO_RAND_GEN_TAUSWORTHE64,
811};
812
813enum {
814 FIO_CPUS_SHARED = 0,
815 FIO_CPUS_SPLIT,
816};
817
818extern void exec_trigger(const char *);
819extern void check_trigger_file(void);
820
821#endif
fio - Flexible IO Tester