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,
84 FIO_RAND_FILE_SIZE_OFF,
87 FIO_RAND_SEQ_RAND_READ_OFF,
88 FIO_RAND_SEQ_RAND_WRITE_OFF,
89 FIO_RAND_SEQ_RAND_TRIM_OFF,
95 * This describes a single thread/process executing a fio job.
98 struct thread_options o;
101 char verror[FIO_VERROR_SIZE];
103 unsigned int thread_number;
104 unsigned int groupid;
105 struct thread_stat ts;
109 struct io_log *slat_log;
110 struct io_log *clat_log;
111 struct io_log *lat_log;
112 struct io_log *bw_log;
113 struct io_log *iops_log;
115 uint64_t stat_io_bytes[DDIR_RWDIR_CNT];
116 struct timeval bw_sample_time;
118 uint64_t stat_io_blocks[DDIR_RWDIR_CNT];
119 struct timeval iops_sample_time;
121 volatile int update_rusage;
122 struct fio_mutex *rusage_sem;
123 struct rusage ru_start;
124 struct rusage ru_end;
126 struct fio_file **files;
127 unsigned char *file_locks;
128 unsigned int files_size;
129 unsigned int files_index;
130 unsigned int nr_open_files;
131 unsigned int nr_done_files;
132 unsigned int nr_normal_files;
134 unsigned int next_file;
135 os_random_state_t next_file_state;
136 struct frand_state __next_file_state;
143 size_t orig_buffer_size;
144 volatile int terminate;
145 volatile int runstate;
146 unsigned int last_was_sync;
147 enum fio_ddir last_ddir;
156 unsigned long rand_seeds[FIO_RAND_NR_OFFS];
159 os_random_state_t bsrange_state;
160 struct frand_state __bsrange_state;
163 os_random_state_t verify_state;
164 struct frand_state __verify_state;
167 os_random_state_t trim_state;
168 struct frand_state __trim_state;
171 os_random_state_t delay_state;
172 struct frand_state __delay_state;
175 struct frand_state buf_state;
177 unsigned int verify_batch;
178 unsigned int trim_batch;
183 * IO engine hooks, contains everything needed to submit an io_u
184 * to any of the available IO engines.
186 struct ioengine_ops *io_ops;
189 * Queue depth of io_u's that fio MIGHT do
191 unsigned int cur_depth;
194 * io_u's about to be committed
196 unsigned int io_u_queued;
199 * io_u's submitted but not completed yet
201 unsigned int io_u_in_flight;
204 * List of free and busy io_u's
206 struct io_u_ring io_u_requeues;
207 struct io_u_queue io_u_freelist;
208 struct io_u_queue io_u_all;
209 pthread_mutex_t io_u_lock;
210 pthread_cond_t free_cond;
213 * async verify offload
215 struct flist_head verify_list;
216 pthread_t *verify_threads;
217 unsigned int nr_verify_threads;
218 pthread_cond_t verify_cond;
219 int verify_thread_exit;
224 uint64_t rate_bps[DDIR_RWDIR_CNT];
225 long rate_pending_usleep[DDIR_RWDIR_CNT];
226 unsigned long rate_bytes[DDIR_RWDIR_CNT];
227 unsigned long rate_blocks[DDIR_RWDIR_CNT];
228 struct timeval lastrate[DDIR_RWDIR_CNT];
230 uint64_t total_io_size;
231 uint64_t fill_device_size;
233 unsigned long io_issues[DDIR_RWDIR_CNT];
234 uint64_t io_blocks[DDIR_RWDIR_CNT];
235 uint64_t this_io_blocks[DDIR_RWDIR_CNT];
236 uint64_t io_bytes[DDIR_RWDIR_CNT];
237 uint64_t io_skip_bytes;
238 uint64_t this_io_bytes[DDIR_RWDIR_CNT];
240 struct fio_mutex *mutex;
243 * State for random io, a bitmap of blocks done vs not done
246 os_random_state_t random_state;
247 struct frand_state __random_state;
250 struct timeval start; /* start of this loop */
251 struct timeval epoch; /* time job was started */
252 struct timeval last_issue;
253 struct timeval tv_cache;
254 unsigned int tv_cache_nr;
255 unsigned int tv_cache_mask;
256 unsigned int ramp_time_over;
259 * Time since last latency_window was started
261 struct timeval latency_ts;
262 unsigned int latency_qd;
263 unsigned int latency_qd_high;
264 unsigned int latency_qd_low;
265 unsigned int latency_failed;
266 uint64_t latency_ios;
270 * read/write mixed workload state
273 os_random_state_t rwmix_state;
274 struct frand_state __rwmix_state;
276 unsigned long rwmix_issues;
277 enum fio_ddir rwmix_ddir;
278 unsigned int ddir_seq_nr;
281 * rand/seq mixed workload state
284 os_random_state_t seq_rand_state[DDIR_RWDIR_CNT];
285 struct frand_state __seq_rand_state[DDIR_RWDIR_CNT];
289 * IO history logs for verification. We use a tree for sorting,
290 * if we are overwriting. Otherwise just use a fifo.
292 struct rb_root io_hist_tree;
293 struct flist_head io_hist_list;
294 unsigned long io_hist_len;
299 struct flist_head io_log_list;
302 * For tracking/handling discards
304 struct flist_head trim_list;
305 unsigned long trim_entries;
307 struct flist_head next_rand_list;
310 * for fileservice, how often to switch to a new file
312 unsigned int file_service_nr;
313 unsigned int file_service_left;
314 struct fio_file *file_service_file;
316 unsigned int sync_file_range_nr;
319 * For generating file sizes
322 os_random_state_t file_size_state;
323 struct frand_state __file_size_state;
329 unsigned int total_err_count;
332 struct fio_flow *flow;
335 * Can be overloaded by profiles
337 struct prof_io_ops prof_io_ops;
344 * when should interactive ETA output be generated
352 #define __td_verror(td, err, msg, func) \
354 unsigned int ____e = (err); \
357 (td)->error = ____e; \
358 if (!(td)->first_error) \
359 snprintf(td->verror, sizeof(td->verror), "file:%s:%d, func=%s, error=%s", __FILE__, __LINE__, (func), (msg)); \
363 #define td_clear_error(td) \
365 #define td_verror(td, err, func) \
366 __td_verror((td), (err), strerror((err)), (func))
367 #define td_vmsg(td, err, msg, func) \
368 __td_verror((td), (err), (msg), (func))
370 #define __fio_stringify_1(x) #x
371 #define __fio_stringify(x) __fio_stringify_1(x)
373 extern int exitall_on_terminate;
374 extern unsigned int thread_number;
375 extern unsigned int stat_number;
378 extern int output_format;
379 extern int append_terse_output;
380 extern int temp_stall_ts;
381 extern uintptr_t page_mask, page_size;
382 extern int read_only;
383 extern int eta_print;
384 extern int eta_new_line;
385 extern unsigned long done_secs;
386 extern char *job_section;
387 extern int fio_gtod_offload;
388 extern int fio_gtod_cpu;
389 extern enum fio_cs fio_clock_source;
390 extern int fio_clock_source_set;
391 extern int warnings_fatal;
392 extern int terse_version;
393 extern int is_backend;
394 extern int nr_clients;
395 extern int log_syslog;
396 extern int status_interval;
397 extern const char fio_version_string[];
399 extern struct thread_data *threads;
401 static inline void fio_ro_check(struct thread_data *td, struct io_u *io_u)
403 assert(!(io_u->ddir == DDIR_WRITE && !td_write(td)));
406 #define REAL_MAX_JOBS 2048
408 static inline int should_fsync(struct thread_data *td)
410 if (td->last_was_sync)
412 if (td_write(td) || td_rw(td) || td->o.override_sync)
419 * Init/option functions
421 extern int __must_check fio_init_options(void);
422 extern int __must_check parse_options(int, char **);
423 extern int parse_jobs_ini(char *, int, int, int);
424 extern int parse_cmd_line(int, char **, int);
425 extern int fio_backend(void);
426 extern void reset_fio_state(void);
427 extern void clear_io_state(struct thread_data *);
428 extern int fio_options_parse(struct thread_data *, char **, int, int);
429 extern void fio_keywords_init(void);
430 extern int fio_cmd_option_parse(struct thread_data *, const char *, char *);
431 extern int fio_cmd_ioengine_option_parse(struct thread_data *, const char *, char *);
432 extern void fio_fill_default_options(struct thread_data *);
433 extern int fio_show_option_help(const char *);
434 extern void fio_options_set_ioengine_opts(struct option *long_options, struct thread_data *td);
435 extern void fio_options_dup_and_init(struct option *);
436 extern void fio_options_mem_dupe(struct thread_data *);
437 extern void options_mem_dupe(void *data, struct fio_option *options);
438 extern void td_fill_rand_seeds(struct thread_data *);
439 extern void add_job_opts(const char **, int);
440 extern char *num2str(unsigned long, int, int, int, int);
441 extern int ioengine_load(struct thread_data *);
442 extern int parse_dryrun(void);
443 extern int fio_running_or_pending_io_threads(void);
444 extern void fio_set_fd_nonblocking(int, const char *);
446 extern uintptr_t page_mask;
447 extern uintptr_t page_size;
448 extern int initialize_fio(char *envp[]);
450 #define FIO_GETOPT_JOB 0x89000000
451 #define FIO_GETOPT_IOENGINE 0x98000000
452 #define FIO_NR_OPTIONS (FIO_MAX_OPTS + 128)
457 extern void print_thread_status(void);
458 extern void print_status_init(int);
459 extern char *fio_uint_to_kmg(unsigned int val);
462 * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it
463 * will never back again. It may cycle between running/verififying/fsyncing.
464 * Once the thread reaches TD_EXITED, it is just waiting for the core to
482 extern void td_set_runstate(struct thread_data *, int);
483 extern int td_bump_runstate(struct thread_data *, int);
484 extern void td_restore_runstate(struct thread_data *, int);
486 #define TERMINATE_ALL (-1)
487 extern void fio_terminate_threads(int);
492 extern int __must_check fio_pin_memory(struct thread_data *);
493 extern void fio_unpin_memory(struct thread_data *);
494 extern int __must_check allocate_io_mem(struct thread_data *);
495 extern void free_io_mem(struct thread_data *);
496 extern void free_threads_shm(void);
499 * Reset stats after ramp time completes
501 extern void reset_all_stats(struct thread_data *);
506 #ifdef FIO_HAVE_BLKTRACE
507 extern int is_blktrace(const char *, int *);
508 extern int load_blktrace(struct thread_data *, const char *, int);
512 * Latency target helpers
514 extern void lat_target_check(struct thread_data *);
515 extern void lat_target_init(struct thread_data *);
516 extern void lat_target_reset(struct thread_data *);
518 #define for_each_td(td, i) \
519 for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++)
520 #define for_each_file(td, f, i) \
521 if ((td)->files_index) \
522 for ((i) = 0, (f) = (td)->files[0]; \
523 (i) < (td)->o.nr_files && ((f) = (td)->files[i]) != NULL; \
526 #define fio_assert(td, cond) do { \
529 fprintf(stderr, "file:%s:%d, assert %s failed\n", __FILE__, __LINE__, #cond); \
530 td_set_runstate((td), TD_EXITED); \
531 (td)->error = EFAULT; \
536 static inline int fio_fill_issue_time(struct thread_data *td)
538 if (td->o.read_iolog_file ||
539 !td->o.disable_clat || !td->o.disable_slat || !td->o.disable_bw)
545 static inline int __should_check_rate(struct thread_data *td,
548 struct thread_options *o = &td->o;
551 * If some rate setting was given, we need to check it
553 if (o->rate[ddir] || o->ratemin[ddir] || o->rate_iops[ddir] ||
554 o->rate_iops_min[ddir])
560 static inline int should_check_rate(struct thread_data *td,
561 uint64_t *bytes_done)
565 if (bytes_done[DDIR_READ])
566 ret |= __should_check_rate(td, DDIR_READ);
567 if (bytes_done[DDIR_WRITE])
568 ret |= __should_check_rate(td, DDIR_WRITE);
569 if (bytes_done[DDIR_TRIM])
570 ret |= __should_check_rate(td, DDIR_TRIM);
575 static inline unsigned int td_max_bs(struct thread_data *td)
579 max_bs = max(td->o.max_bs[DDIR_READ], td->o.max_bs[DDIR_WRITE]);
580 return max(td->o.max_bs[DDIR_TRIM], max_bs);
583 static inline unsigned int td_min_bs(struct thread_data *td)
587 min_bs = min(td->o.min_bs[DDIR_READ], td->o.min_bs[DDIR_WRITE]);
588 return min(td->o.min_bs[DDIR_TRIM], min_bs);
591 static inline int is_power_of_2(unsigned int val)
593 return (val != 0 && ((val & (val - 1)) == 0));
597 * We currently only need to do locking if we have verifier threads
598 * accessing our internal structures too
600 static inline void td_io_u_lock(struct thread_data *td)
602 if (td->o.verify_async)
603 pthread_mutex_lock(&td->io_u_lock);
606 static inline void td_io_u_unlock(struct thread_data *td)
608 if (td->o.verify_async)
609 pthread_mutex_unlock(&td->io_u_lock);
612 static inline void td_io_u_free_notify(struct thread_data *td)
614 if (td->o.verify_async)
615 pthread_cond_signal(&td->free_cond);
618 extern const char *fio_get_arch_string(int);
619 extern const char *fio_get_os_string(int);
621 #define ARRAY_SIZE(x) (sizeof((x)) / (sizeof((x)[0])))
624 FIO_OUTPUT_TERSE = 0,
630 FIO_RAND_DIST_RANDOM = 0,
632 FIO_RAND_DIST_PARETO,
636 FIO_RAND_GEN_TAUSWORTHE = 0,