8 #include <sys/resource.h>
17 #include "compiler/compiler.h"
18 #include "thread_options.h"
21 #include "arch/arch.h"
35 #include "lib/getopt.h"
37 #include "lib/rbtree.h"
42 #include "io_u_queue.h"
44 #ifdef CONFIG_SOLARISAIO
45 #include <sys/asynch.h>
49 #include <linux/mempolicy.h>
53 * "local" is pseudo-policy
55 #define MPOL_LOCAL MPOL_MAX
59 * offset generator types
68 TD_F_TRIM_BACKLOG = 2,
70 TD_F_REFILL_BUFFERS = 8,
71 TD_F_SCRAMBLE_BUFFERS = 16,
73 TD_F_PROFILE_OPS = 64,
76 TD_F_COMPRESS_LOG = 512,
85 FIO_RAND_FILE_SIZE_OFF,
88 FIO_RAND_SEQ_RAND_READ_OFF,
89 FIO_RAND_SEQ_RAND_WRITE_OFF,
90 FIO_RAND_SEQ_RAND_TRIM_OFF,
97 * This describes a single thread/process executing a fio job.
100 struct thread_options o;
103 char verror[FIO_VERROR_SIZE];
105 unsigned int thread_number;
106 unsigned int subjob_number;
107 unsigned int groupid;
108 struct thread_stat ts;
112 struct io_log *slat_log;
113 struct io_log *clat_log;
114 struct io_log *lat_log;
115 struct io_log *bw_log;
116 struct io_log *iops_log;
118 struct tp_data *tp_data;
120 uint64_t stat_io_bytes[DDIR_RWDIR_CNT];
121 struct timeval bw_sample_time;
123 uint64_t stat_io_blocks[DDIR_RWDIR_CNT];
124 struct timeval iops_sample_time;
126 volatile int update_rusage;
127 struct fio_mutex *rusage_sem;
128 struct rusage ru_start;
129 struct rusage ru_end;
131 struct fio_file **files;
132 unsigned char *file_locks;
133 unsigned int files_size;
134 unsigned int files_index;
135 unsigned int nr_open_files;
136 unsigned int nr_done_files;
137 unsigned int nr_normal_files;
139 unsigned int next_file;
140 os_random_state_t next_file_state;
141 struct frand_state __next_file_state;
148 size_t orig_buffer_size;
149 volatile int terminate;
150 volatile int runstate;
151 unsigned int last_was_sync;
152 enum fio_ddir last_ddir;
161 unsigned long rand_seeds[FIO_RAND_NR_OFFS];
164 os_random_state_t bsrange_state;
165 struct frand_state __bsrange_state;
168 os_random_state_t verify_state;
169 struct frand_state __verify_state;
172 os_random_state_t trim_state;
173 struct frand_state __trim_state;
176 os_random_state_t delay_state;
177 struct frand_state __delay_state;
180 struct frand_state buf_state;
181 struct frand_state buf_state_prev;
182 struct frand_state dedupe_state;
184 unsigned int verify_batch;
185 unsigned int trim_batch;
190 * IO engine hooks, contains everything needed to submit an io_u
191 * to any of the available IO engines.
193 struct ioengine_ops *io_ops;
196 * Queue depth of io_u's that fio MIGHT do
198 unsigned int cur_depth;
201 * io_u's about to be committed
203 unsigned int io_u_queued;
206 * io_u's submitted but not completed yet
208 unsigned int io_u_in_flight;
211 * List of free and busy io_u's
213 struct io_u_ring io_u_requeues;
214 struct io_u_queue io_u_freelist;
215 struct io_u_queue io_u_all;
216 pthread_mutex_t io_u_lock;
217 pthread_cond_t free_cond;
220 * async verify offload
222 struct flist_head verify_list;
223 pthread_t *verify_threads;
224 unsigned int nr_verify_threads;
225 pthread_cond_t verify_cond;
226 int verify_thread_exit;
231 uint64_t rate_bps[DDIR_RWDIR_CNT];
232 long rate_pending_usleep[DDIR_RWDIR_CNT];
233 unsigned long rate_bytes[DDIR_RWDIR_CNT];
234 unsigned long rate_blocks[DDIR_RWDIR_CNT];
235 struct timeval lastrate[DDIR_RWDIR_CNT];
237 uint64_t total_io_size;
238 uint64_t fill_device_size;
240 unsigned long io_issues[DDIR_RWDIR_CNT];
241 uint64_t io_blocks[DDIR_RWDIR_CNT];
242 uint64_t this_io_blocks[DDIR_RWDIR_CNT];
243 uint64_t io_bytes[DDIR_RWDIR_CNT];
244 uint64_t io_skip_bytes;
245 uint64_t this_io_bytes[DDIR_RWDIR_CNT];
247 struct fio_mutex *mutex;
250 * State for random io, a bitmap of blocks done vs not done
253 os_random_state_t random_state;
254 struct frand_state __random_state;
257 struct timeval start; /* start of this loop */
258 struct timeval epoch; /* time job was started */
259 struct timeval last_issue;
260 struct timeval tv_cache;
261 struct timeval terminate_time;
262 unsigned int tv_cache_nr;
263 unsigned int tv_cache_mask;
264 unsigned int ramp_time_over;
267 * Time since last latency_window was started
269 struct timeval latency_ts;
270 unsigned int latency_qd;
271 unsigned int latency_qd_high;
272 unsigned int latency_qd_low;
273 unsigned int latency_failed;
274 uint64_t latency_ios;
278 * read/write mixed workload state
281 os_random_state_t rwmix_state;
282 struct frand_state __rwmix_state;
284 unsigned long rwmix_issues;
285 enum fio_ddir rwmix_ddir;
286 unsigned int ddir_seq_nr;
289 * rand/seq mixed workload state
292 os_random_state_t seq_rand_state[DDIR_RWDIR_CNT];
293 struct frand_state __seq_rand_state[DDIR_RWDIR_CNT];
297 * IO history logs for verification. We use a tree for sorting,
298 * if we are overwriting. Otherwise just use a fifo.
300 struct rb_root io_hist_tree;
301 struct flist_head io_hist_list;
302 unsigned long io_hist_len;
307 struct flist_head io_log_list;
310 * For tracking/handling discards
312 struct flist_head trim_list;
313 unsigned long trim_entries;
315 struct flist_head next_rand_list;
318 * for fileservice, how often to switch to a new file
320 unsigned int file_service_nr;
321 unsigned int file_service_left;
322 struct fio_file *file_service_file;
324 unsigned int sync_file_range_nr;
327 * For generating file sizes
330 os_random_state_t file_size_state;
331 struct frand_state __file_size_state;
337 unsigned int total_err_count;
340 struct fio_flow *flow;
343 * Can be overloaded by profiles
345 struct prof_io_ops prof_io_ops;
352 * when should interactive ETA output be generated
360 #define __td_verror(td, err, msg, func) \
362 unsigned int ____e = (err); \
365 (td)->error = ____e; \
366 if (!(td)->first_error) \
367 snprintf(td->verror, sizeof(td->verror), "file:%s:%d, func=%s, error=%s", __FILE__, __LINE__, (func), (msg)); \
371 #define td_clear_error(td) \
373 #define td_verror(td, err, func) \
374 __td_verror((td), (err), strerror((err)), (func))
375 #define td_vmsg(td, err, msg, func) \
376 __td_verror((td), (err), (msg), (func))
378 #define __fio_stringify_1(x) #x
379 #define __fio_stringify(x) __fio_stringify_1(x)
381 extern int exitall_on_terminate;
382 extern unsigned int thread_number;
383 extern unsigned int stat_number;
386 extern int output_format;
387 extern int append_terse_output;
388 extern int temp_stall_ts;
389 extern uintptr_t page_mask, page_size;
390 extern int read_only;
391 extern int eta_print;
392 extern int eta_new_line;
393 extern unsigned long done_secs;
394 extern char *job_section;
395 extern int fio_gtod_offload;
396 extern int fio_gtod_cpu;
397 extern enum fio_cs fio_clock_source;
398 extern int fio_clock_source_set;
399 extern int warnings_fatal;
400 extern int terse_version;
401 extern int is_backend;
402 extern int nr_clients;
403 extern int log_syslog;
404 extern int status_interval;
405 extern const char fio_version_string[];
407 extern struct thread_data *threads;
409 static inline void fio_ro_check(const struct thread_data *td, struct io_u *io_u)
411 assert(!(io_u->ddir == DDIR_WRITE && !td_write(td)));
414 #define REAL_MAX_JOBS 2048
416 static inline int should_fsync(struct thread_data *td)
418 if (td->last_was_sync)
420 if (td_write(td) || td_rw(td) || td->o.override_sync)
427 * Init/option functions
429 extern int __must_check fio_init_options(void);
430 extern int __must_check parse_options(int, char **);
431 extern int parse_jobs_ini(char *, int, int, int);
432 extern int parse_cmd_line(int, char **, int);
433 extern int fio_backend(void);
434 extern void reset_fio_state(void);
435 extern void clear_io_state(struct thread_data *);
436 extern int fio_options_parse(struct thread_data *, char **, int, int);
437 extern void fio_keywords_init(void);
438 extern int fio_cmd_option_parse(struct thread_data *, const char *, char *);
439 extern int fio_cmd_ioengine_option_parse(struct thread_data *, const char *, char *);
440 extern void fio_fill_default_options(struct thread_data *);
441 extern int fio_show_option_help(const char *);
442 extern void fio_options_set_ioengine_opts(struct option *long_options, struct thread_data *td);
443 extern void fio_options_dup_and_init(struct option *);
444 extern void fio_options_mem_dupe(struct thread_data *);
445 extern void options_mem_dupe(void *data, struct fio_option *options);
446 extern void td_fill_rand_seeds(struct thread_data *);
447 extern void add_job_opts(const char **, int);
448 extern char *num2str(unsigned long, int, int, int, int);
449 extern int ioengine_load(struct thread_data *);
450 extern int parse_dryrun(void);
451 extern int fio_running_or_pending_io_threads(void);
452 extern int fio_set_fd_nonblocking(int, const char *);
454 extern uintptr_t page_mask;
455 extern uintptr_t page_size;
456 extern int initialize_fio(char *envp[]);
458 #define FIO_GETOPT_JOB 0x89000000
459 #define FIO_GETOPT_IOENGINE 0x98000000
460 #define FIO_NR_OPTIONS (FIO_MAX_OPTS + 128)
465 extern void print_thread_status(void);
466 extern void print_status_init(int);
467 extern char *fio_uint_to_kmg(unsigned int val);
470 * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it
471 * will never back again. It may cycle between running/verififying/fsyncing.
472 * Once the thread reaches TD_EXITED, it is just waiting for the core to
490 extern void td_set_runstate(struct thread_data *, int);
491 extern int td_bump_runstate(struct thread_data *, int);
492 extern void td_restore_runstate(struct thread_data *, int);
495 * Allow 60 seconds for a job to quit on its own, otherwise reap with
498 #define FIO_REAP_TIMEOUT 60
500 #define TERMINATE_ALL (-1)
501 extern void fio_terminate_threads(int);
502 extern void fio_mark_td_terminate(struct thread_data *);
507 extern int __must_check fio_pin_memory(struct thread_data *);
508 extern void fio_unpin_memory(struct thread_data *);
509 extern int __must_check allocate_io_mem(struct thread_data *);
510 extern void free_io_mem(struct thread_data *);
511 extern void free_threads_shm(void);
514 * Reset stats after ramp time completes
516 extern void reset_all_stats(struct thread_data *);
521 #ifdef FIO_HAVE_BLKTRACE
522 extern int is_blktrace(const char *, int *);
523 extern int load_blktrace(struct thread_data *, const char *, int);
527 * Latency target helpers
529 extern void lat_target_check(struct thread_data *);
530 extern void lat_target_init(struct thread_data *);
531 extern void lat_target_reset(struct thread_data *);
533 #define for_each_td(td, i) \
534 for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++)
535 #define for_each_file(td, f, i) \
536 if ((td)->files_index) \
537 for ((i) = 0, (f) = (td)->files[0]; \
538 (i) < (td)->o.nr_files && ((f) = (td)->files[i]) != NULL; \
541 #define fio_assert(td, cond) do { \
544 fprintf(stderr, "file:%s:%d, assert %s failed\n", __FILE__, __LINE__, #cond); \
545 td_set_runstate((td), TD_EXITED); \
546 (td)->error = EFAULT; \
551 static inline int fio_fill_issue_time(struct thread_data *td)
553 if (td->o.read_iolog_file ||
554 !td->o.disable_clat || !td->o.disable_slat || !td->o.disable_bw)
560 static inline int __should_check_rate(struct thread_data *td,
563 struct thread_options *o = &td->o;
566 * If some rate setting was given, we need to check it
568 if (o->rate[ddir] || o->ratemin[ddir] || o->rate_iops[ddir] ||
569 o->rate_iops_min[ddir])
575 static inline int should_check_rate(struct thread_data *td,
576 uint64_t *bytes_done)
580 if (bytes_done[DDIR_READ])
581 ret |= __should_check_rate(td, DDIR_READ);
582 if (bytes_done[DDIR_WRITE])
583 ret |= __should_check_rate(td, DDIR_WRITE);
584 if (bytes_done[DDIR_TRIM])
585 ret |= __should_check_rate(td, DDIR_TRIM);
590 static inline unsigned int td_max_bs(struct thread_data *td)
594 max_bs = max(td->o.max_bs[DDIR_READ], td->o.max_bs[DDIR_WRITE]);
595 return max(td->o.max_bs[DDIR_TRIM], max_bs);
598 static inline unsigned int td_min_bs(struct thread_data *td)
602 min_bs = min(td->o.min_bs[DDIR_READ], td->o.min_bs[DDIR_WRITE]);
603 return min(td->o.min_bs[DDIR_TRIM], min_bs);
606 static inline int is_power_of_2(unsigned long val)
608 return (val != 0 && ((val & (val - 1)) == 0));
612 * We currently only need to do locking if we have verifier threads
613 * accessing our internal structures too
615 static inline void td_io_u_lock(struct thread_data *td)
617 if (td->o.verify_async)
618 pthread_mutex_lock(&td->io_u_lock);
621 static inline void td_io_u_unlock(struct thread_data *td)
623 if (td->o.verify_async)
624 pthread_mutex_unlock(&td->io_u_lock);
627 static inline void td_io_u_free_notify(struct thread_data *td)
629 if (td->o.verify_async)
630 pthread_cond_signal(&td->free_cond);
633 extern const char *fio_get_arch_string(int);
634 extern const char *fio_get_os_string(int);
637 #define ARRAY_SIZE(x) (sizeof((x)) / (sizeof((x)[0])))
641 FIO_OUTPUT_TERSE = 0,
647 FIO_RAND_DIST_RANDOM = 0,
649 FIO_RAND_DIST_PARETO,
653 FIO_RAND_GEN_TAUSWORTHE = 0,