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,
82 FIO_RAND_FILE_SIZE_OFF,
85 FIO_RAND_SEQ_RAND_READ_OFF,
86 FIO_RAND_SEQ_RAND_WRITE_OFF,
87 FIO_RAND_SEQ_RAND_TRIM_OFF,
93 * This describes a single thread/process executing a fio job.
96 struct thread_options o;
99 char verror[FIO_VERROR_SIZE];
101 unsigned int thread_number;
102 unsigned int groupid;
103 struct thread_stat ts;
107 struct io_log *slat_log;
108 struct io_log *clat_log;
109 struct io_log *lat_log;
110 struct io_log *bw_log;
111 struct io_log *iops_log;
113 uint64_t stat_io_bytes[DDIR_RWDIR_CNT];
114 struct timeval bw_sample_time;
116 uint64_t stat_io_blocks[DDIR_RWDIR_CNT];
117 struct timeval iops_sample_time;
119 volatile int update_rusage;
120 struct fio_mutex *rusage_sem;
121 struct rusage ru_start;
122 struct rusage ru_end;
124 struct fio_file **files;
125 unsigned char *file_locks;
126 unsigned int files_size;
127 unsigned int files_index;
128 unsigned int nr_open_files;
129 unsigned int nr_done_files;
130 unsigned int nr_normal_files;
132 unsigned int next_file;
133 os_random_state_t next_file_state;
134 struct frand_state __next_file_state;
141 size_t orig_buffer_size;
142 volatile int terminate;
143 volatile int runstate;
144 unsigned int last_was_sync;
145 enum fio_ddir last_ddir;
154 unsigned long rand_seeds[FIO_RAND_NR_OFFS];
157 os_random_state_t bsrange_state;
158 struct frand_state __bsrange_state;
161 os_random_state_t verify_state;
162 struct frand_state __verify_state;
165 os_random_state_t trim_state;
166 struct frand_state __trim_state;
169 os_random_state_t delay_state;
170 struct frand_state __delay_state;
173 struct frand_state buf_state;
175 unsigned int verify_batch;
176 unsigned int trim_batch;
181 * IO engine hooks, contains everything needed to submit an io_u
182 * to any of the available IO engines.
184 struct ioengine_ops *io_ops;
187 * Queue depth of io_u's that fio MIGHT do
189 unsigned int cur_depth;
192 * io_u's about to be committed
194 unsigned int io_u_queued;
197 * io_u's submitted but not completed yet
199 unsigned int io_u_in_flight;
202 * List of free and busy io_u's
204 struct io_u_ring io_u_requeues;
205 struct io_u_queue io_u_freelist;
206 struct io_u_queue io_u_all;
207 pthread_mutex_t io_u_lock;
208 pthread_cond_t free_cond;
211 * async verify offload
213 struct flist_head verify_list;
214 pthread_t *verify_threads;
215 unsigned int nr_verify_threads;
216 pthread_cond_t verify_cond;
217 int verify_thread_exit;
222 uint64_t rate_bps[DDIR_RWDIR_CNT];
223 long rate_pending_usleep[DDIR_RWDIR_CNT];
224 unsigned long rate_bytes[DDIR_RWDIR_CNT];
225 unsigned long rate_blocks[DDIR_RWDIR_CNT];
226 struct timeval lastrate[DDIR_RWDIR_CNT];
228 uint64_t total_io_size;
229 uint64_t fill_device_size;
231 unsigned long io_issues[DDIR_RWDIR_CNT];
232 uint64_t io_blocks[DDIR_RWDIR_CNT];
233 uint64_t this_io_blocks[DDIR_RWDIR_CNT];
234 uint64_t io_bytes[DDIR_RWDIR_CNT];
235 uint64_t io_skip_bytes;
236 uint64_t this_io_bytes[DDIR_RWDIR_CNT];
238 struct fio_mutex *mutex;
241 * State for random io, a bitmap of blocks done vs not done
244 os_random_state_t random_state;
245 struct frand_state __random_state;
248 struct timeval start; /* start of this loop */
249 struct timeval epoch; /* time job was started */
250 struct timeval last_issue;
251 struct timeval tv_cache;
252 unsigned int tv_cache_nr;
253 unsigned int tv_cache_mask;
254 unsigned int ramp_time_over;
257 * Time since last latency_window was started
259 struct timeval latency_ts;
260 unsigned int latency_qd;
261 unsigned int latency_qd_high;
262 unsigned int latency_qd_low;
263 unsigned int latency_failed;
264 uint64_t latency_ios;
267 * read/write mixed workload state
270 os_random_state_t rwmix_state;
271 struct frand_state __rwmix_state;
273 unsigned long rwmix_issues;
274 enum fio_ddir rwmix_ddir;
275 unsigned int ddir_seq_nr;
278 * rand/seq mixed workload state
281 os_random_state_t seq_rand_state[DDIR_RWDIR_CNT];
282 struct frand_state __seq_rand_state[DDIR_RWDIR_CNT];
286 * IO history logs for verification. We use a tree for sorting,
287 * if we are overwriting. Otherwise just use a fifo.
289 struct rb_root io_hist_tree;
290 struct flist_head io_hist_list;
291 unsigned long io_hist_len;
296 struct flist_head io_log_list;
299 * For tracking/handling discards
301 struct flist_head trim_list;
302 unsigned long trim_entries;
304 struct flist_head next_rand_list;
307 * for fileservice, how often to switch to a new file
309 unsigned int file_service_nr;
310 unsigned int file_service_left;
311 struct fio_file *file_service_file;
313 unsigned int sync_file_range_nr;
316 * For generating file sizes
319 os_random_state_t file_size_state;
320 struct frand_state __file_size_state;
326 unsigned int total_err_count;
329 struct fio_flow *flow;
332 * Can be overloaded by profiles
334 struct prof_io_ops prof_io_ops;
341 * when should interactive ETA output be generated
349 #define __td_verror(td, err, msg, func) \
354 (td)->error = ____e; \
355 if (!(td)->first_error) \
356 snprintf(td->verror, sizeof(td->verror), "file:%s:%d, func=%s, error=%s", __FILE__, __LINE__, (func), (msg)); \
360 #define td_clear_error(td) \
362 #define td_verror(td, err, func) \
363 __td_verror((td), (err), strerror((err)), (func))
364 #define td_vmsg(td, err, msg, func) \
365 __td_verror((td), (err), (msg), (func))
367 #define __fio_stringify_1(x) #x
368 #define __fio_stringify(x) __fio_stringify_1(x)
370 extern int exitall_on_terminate;
371 extern unsigned int thread_number;
372 extern unsigned int stat_number;
375 extern int output_format;
376 extern int temp_stall_ts;
377 extern uintptr_t page_mask, page_size;
378 extern int read_only;
379 extern int eta_print;
380 extern int eta_new_line;
381 extern unsigned long done_secs;
382 extern char *job_section;
383 extern int fio_gtod_offload;
384 extern int fio_gtod_cpu;
385 extern enum fio_cs fio_clock_source;
386 extern int fio_clock_source_set;
387 extern int warnings_fatal;
388 extern int terse_version;
389 extern int is_backend;
390 extern int nr_clients;
391 extern int log_syslog;
392 extern int status_interval;
393 extern const char fio_version_string[];
395 extern struct thread_data *threads;
397 static inline void fio_ro_check(struct thread_data *td, struct io_u *io_u)
399 assert(!(io_u->ddir == DDIR_WRITE && !td_write(td)));
402 #define REAL_MAX_JOBS 2048
404 static inline int should_fsync(struct thread_data *td)
406 if (td->last_was_sync)
408 if (td_write(td) || td_rw(td) || td->o.override_sync)
415 * Init/option functions
417 extern int __must_check fio_init_options(void);
418 extern int __must_check parse_options(int, char **);
419 extern int parse_jobs_ini(char *, int, int, int);
420 extern int parse_cmd_line(int, char **, int);
421 extern int fio_backend(void);
422 extern void reset_fio_state(void);
423 extern void clear_io_state(struct thread_data *);
424 extern int fio_options_parse(struct thread_data *, char **, int, int);
425 extern void fio_keywords_init(void);
426 extern int fio_cmd_option_parse(struct thread_data *, const char *, char *);
427 extern int fio_cmd_ioengine_option_parse(struct thread_data *, const char *, char *);
428 extern void fio_fill_default_options(struct thread_data *);
429 extern int fio_show_option_help(const char *);
430 extern void fio_options_set_ioengine_opts(struct option *long_options, struct thread_data *td);
431 extern void fio_options_dup_and_init(struct option *);
432 extern void fio_options_mem_dupe(struct thread_data *);
433 extern void options_mem_dupe(void *data, struct fio_option *options);
434 extern void td_fill_rand_seeds(struct thread_data *);
435 extern void add_job_opts(const char **, int);
436 extern char *num2str(unsigned long, int, int, int, int);
437 extern int ioengine_load(struct thread_data *);
438 extern int parse_dryrun(void);
440 extern uintptr_t page_mask;
441 extern uintptr_t page_size;
442 extern int initialize_fio(char *envp[]);
444 #define FIO_GETOPT_JOB 0x89000000
445 #define FIO_GETOPT_IOENGINE 0x98000000
446 #define FIO_NR_OPTIONS (FIO_MAX_OPTS + 128)
451 extern void print_thread_status(void);
452 extern void print_status_init(int);
453 extern char *fio_uint_to_kmg(unsigned int val);
456 * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it
457 * will never back again. It may cycle between running/verififying/fsyncing.
458 * Once the thread reaches TD_EXITED, it is just waiting for the core to
475 extern void td_set_runstate(struct thread_data *, int);
476 #define TERMINATE_ALL (-1)
477 extern void fio_terminate_threads(int);
482 extern int __must_check fio_pin_memory(struct thread_data *);
483 extern void fio_unpin_memory(struct thread_data *);
484 extern int __must_check allocate_io_mem(struct thread_data *);
485 extern void free_io_mem(struct thread_data *);
486 extern void free_threads_shm(void);
489 * Reset stats after ramp time completes
491 extern void reset_all_stats(struct thread_data *);
496 #ifdef FIO_HAVE_BLKTRACE
497 extern int is_blktrace(const char *, int *);
498 extern int load_blktrace(struct thread_data *, const char *, int);
502 * Latency target helpers
504 extern void lat_target_check(struct thread_data *);
505 extern void lat_target_init(struct thread_data *);
507 #define for_each_td(td, i) \
508 for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++)
509 #define for_each_file(td, f, i) \
510 if ((td)->files_index) \
511 for ((i) = 0, (f) = (td)->files[0]; \
512 (i) < (td)->o.nr_files && ((f) = (td)->files[i]) != NULL; \
515 #define fio_assert(td, cond) do { \
518 fprintf(stderr, "file:%s:%d, assert %s failed\n", __FILE__, __LINE__, #cond); \
519 td_set_runstate((td), TD_EXITED); \
520 (td)->error = EFAULT; \
525 static inline int fio_fill_issue_time(struct thread_data *td)
527 if (td->o.read_iolog_file ||
528 !td->o.disable_clat || !td->o.disable_slat || !td->o.disable_bw)
534 static inline int __should_check_rate(struct thread_data *td,
537 struct thread_options *o = &td->o;
540 * If some rate setting was given, we need to check it
542 if (o->rate[ddir] || o->ratemin[ddir] || o->rate_iops[ddir] ||
543 o->rate_iops_min[ddir])
549 static inline int should_check_rate(struct thread_data *td,
550 uint64_t *bytes_done)
554 if (bytes_done[DDIR_READ])
555 ret |= __should_check_rate(td, DDIR_READ);
556 if (bytes_done[DDIR_WRITE])
557 ret |= __should_check_rate(td, DDIR_WRITE);
558 if (bytes_done[DDIR_TRIM])
559 ret |= __should_check_rate(td, DDIR_TRIM);
564 static inline unsigned int td_max_bs(struct thread_data *td)
568 max_bs = max(td->o.max_bs[DDIR_READ], td->o.max_bs[DDIR_WRITE]);
569 return max(td->o.max_bs[DDIR_TRIM], max_bs);
572 static inline unsigned int td_min_bs(struct thread_data *td)
576 min_bs = min(td->o.min_bs[DDIR_READ], td->o.min_bs[DDIR_WRITE]);
577 return min(td->o.min_bs[DDIR_TRIM], min_bs);
580 static inline int is_power_of_2(unsigned int val)
582 return (val != 0 && ((val & (val - 1)) == 0));
586 * We currently only need to do locking if we have verifier threads
587 * accessing our internal structures too
589 static inline void td_io_u_lock(struct thread_data *td)
591 if (td->o.verify_async)
592 pthread_mutex_lock(&td->io_u_lock);
595 static inline void td_io_u_unlock(struct thread_data *td)
597 if (td->o.verify_async)
598 pthread_mutex_unlock(&td->io_u_lock);
601 static inline void td_io_u_free_notify(struct thread_data *td)
603 if (td->o.verify_async)
604 pthread_cond_signal(&td->free_cond);
607 extern const char *fio_get_arch_string(int);
608 extern const char *fio_get_os_string(int);
610 #define ARRAY_SIZE(x) (sizeof((x)) / (sizeof((x)[0])))
613 FIO_OUTPUT_TERSE = 0,
619 FIO_RAND_DIST_RANDOM = 0,
621 FIO_RAND_DIST_PARETO,
625 FIO_RAND_GEN_TAUSWORTHE = 0,