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,
92 * This describes a single thread/process executing a fio job.
95 struct thread_options o;
98 char verror[FIO_VERROR_SIZE];
100 unsigned int thread_number;
101 unsigned int groupid;
102 struct thread_stat ts;
106 struct io_log *slat_log;
107 struct io_log *clat_log;
108 struct io_log *lat_log;
109 struct io_log *bw_log;
110 struct io_log *iops_log;
112 uint64_t stat_io_bytes[DDIR_RWDIR_CNT];
113 struct timeval bw_sample_time;
115 uint64_t stat_io_blocks[DDIR_RWDIR_CNT];
116 struct timeval iops_sample_time;
118 volatile int update_rusage;
119 struct fio_mutex *rusage_sem;
120 struct rusage ru_start;
121 struct rusage ru_end;
123 struct fio_file **files;
124 unsigned char *file_locks;
125 unsigned int files_size;
126 unsigned int files_index;
127 unsigned int nr_open_files;
128 unsigned int nr_done_files;
129 unsigned int nr_normal_files;
131 unsigned int next_file;
132 os_random_state_t next_file_state;
133 struct frand_state __next_file_state;
140 size_t orig_buffer_size;
141 volatile int terminate;
142 volatile int runstate;
143 unsigned int last_was_sync;
144 enum fio_ddir last_ddir;
153 unsigned long rand_seeds[FIO_RAND_NR_OFFS];
156 os_random_state_t bsrange_state;
157 struct frand_state __bsrange_state;
160 os_random_state_t verify_state;
161 struct frand_state __verify_state;
164 os_random_state_t trim_state;
165 struct frand_state __trim_state;
168 struct frand_state buf_state;
170 unsigned int verify_batch;
171 unsigned int trim_batch;
176 * IO engine hooks, contains everything needed to submit an io_u
177 * to any of the available IO engines.
179 struct ioengine_ops *io_ops;
182 * Queue depth of io_u's that fio MIGHT do
184 unsigned int cur_depth;
187 * io_u's about to be committed
189 unsigned int io_u_queued;
192 * io_u's submitted but not completed yet
194 unsigned int io_u_in_flight;
197 * List of free and busy io_u's
199 struct io_u_ring io_u_requeues;
200 struct io_u_queue io_u_freelist;
201 struct io_u_queue io_u_all;
202 pthread_mutex_t io_u_lock;
203 pthread_cond_t free_cond;
206 * async verify offload
208 struct flist_head verify_list;
209 pthread_t *verify_threads;
210 unsigned int nr_verify_threads;
211 pthread_cond_t verify_cond;
212 int verify_thread_exit;
217 uint64_t rate_bps[DDIR_RWDIR_CNT];
218 long rate_pending_usleep[DDIR_RWDIR_CNT];
219 unsigned long rate_bytes[DDIR_RWDIR_CNT];
220 unsigned long rate_blocks[DDIR_RWDIR_CNT];
221 struct timeval lastrate[DDIR_RWDIR_CNT];
223 uint64_t total_io_size;
224 uint64_t fill_device_size;
226 unsigned long io_issues[DDIR_RWDIR_CNT];
227 uint64_t io_blocks[DDIR_RWDIR_CNT];
228 uint64_t this_io_blocks[DDIR_RWDIR_CNT];
229 uint64_t io_bytes[DDIR_RWDIR_CNT];
230 uint64_t io_skip_bytes;
231 uint64_t this_io_bytes[DDIR_RWDIR_CNT];
233 struct fio_mutex *mutex;
236 * State for random io, a bitmap of blocks done vs not done
239 os_random_state_t random_state;
240 struct frand_state __random_state;
243 struct timeval start; /* start of this loop */
244 struct timeval epoch; /* time job was started */
245 struct timeval last_issue;
246 struct timeval tv_cache;
247 unsigned int tv_cache_nr;
248 unsigned int tv_cache_mask;
249 unsigned int ramp_time_over;
252 * Time since last latency_window was started
254 struct timeval latency_ts;
255 unsigned int latency_qd;
256 unsigned int latency_qd_high;
257 unsigned int latency_qd_low;
258 unsigned int latency_failed;
259 uint64_t latency_ios;
262 * read/write mixed workload state
265 os_random_state_t rwmix_state;
266 struct frand_state __rwmix_state;
268 unsigned long rwmix_issues;
269 enum fio_ddir rwmix_ddir;
270 unsigned int ddir_seq_nr;
273 * rand/seq mixed workload state
276 os_random_state_t seq_rand_state[DDIR_RWDIR_CNT];
277 struct frand_state __seq_rand_state[DDIR_RWDIR_CNT];
281 * IO history logs for verification. We use a tree for sorting,
282 * if we are overwriting. Otherwise just use a fifo.
284 struct rb_root io_hist_tree;
285 struct flist_head io_hist_list;
286 unsigned long io_hist_len;
291 struct flist_head io_log_list;
294 * For tracking/handling discards
296 struct flist_head trim_list;
297 unsigned long trim_entries;
299 struct flist_head next_rand_list;
302 * for fileservice, how often to switch to a new file
304 unsigned int file_service_nr;
305 unsigned int file_service_left;
306 struct fio_file *file_service_file;
308 unsigned int sync_file_range_nr;
311 * For generating file sizes
314 os_random_state_t file_size_state;
315 struct frand_state __file_size_state;
321 unsigned int total_err_count;
324 struct fio_flow *flow;
327 * Can be overloaded by profiles
329 struct prof_io_ops prof_io_ops;
336 * when should interactive ETA output be generated
344 #define __td_verror(td, err, msg, func) \
350 if (!(td)->first_error) \
351 snprintf(td->verror, sizeof(td->verror), "file:%s:%d, func=%s, error=%s", __FILE__, __LINE__, (func), (msg)); \
355 #define td_clear_error(td) \
357 #define td_verror(td, err, func) \
358 __td_verror((td), (err), strerror((err)), (func))
359 #define td_vmsg(td, err, msg, func) \
360 __td_verror((td), (err), (msg), (func))
362 #define __fio_stringify_1(x) #x
363 #define __fio_stringify(x) __fio_stringify_1(x)
365 extern int exitall_on_terminate;
366 extern unsigned int thread_number;
367 extern unsigned int stat_number;
370 extern int output_format;
371 extern int temp_stall_ts;
372 extern uintptr_t page_mask, page_size;
373 extern int read_only;
374 extern int eta_print;
375 extern int eta_new_line;
376 extern unsigned long done_secs;
377 extern char *job_section;
378 extern int fio_gtod_offload;
379 extern int fio_gtod_cpu;
380 extern enum fio_cs fio_clock_source;
381 extern int fio_clock_source_set;
382 extern int warnings_fatal;
383 extern int terse_version;
384 extern int is_backend;
385 extern int nr_clients;
386 extern int log_syslog;
387 extern int status_interval;
388 extern const char fio_version_string[];
390 extern struct thread_data *threads;
392 static inline void fio_ro_check(struct thread_data *td, struct io_u *io_u)
394 assert(!(io_u->ddir == DDIR_WRITE && !td_write(td)));
397 #define REAL_MAX_JOBS 2048
399 static inline int should_fsync(struct thread_data *td)
401 if (td->last_was_sync)
403 if (td_write(td) || td_rw(td) || td->o.override_sync)
410 * Init/option functions
412 extern int __must_check fio_init_options(void);
413 extern int __must_check parse_options(int, char **);
414 extern int parse_jobs_ini(char *, int, int, int);
415 extern int parse_cmd_line(int, char **, int);
416 extern int fio_backend(void);
417 extern void reset_fio_state(void);
418 extern void clear_io_state(struct thread_data *);
419 extern int fio_options_parse(struct thread_data *, char **, int, int);
420 extern void fio_keywords_init(void);
421 extern int fio_cmd_option_parse(struct thread_data *, const char *, char *);
422 extern int fio_cmd_ioengine_option_parse(struct thread_data *, const char *, char *);
423 extern void fio_fill_default_options(struct thread_data *);
424 extern int fio_show_option_help(const char *);
425 extern void fio_options_set_ioengine_opts(struct option *long_options, struct thread_data *td);
426 extern void fio_options_dup_and_init(struct option *);
427 extern void fio_options_mem_dupe(struct thread_data *);
428 extern void options_mem_dupe(void *data, struct fio_option *options);
429 extern void td_fill_rand_seeds(struct thread_data *);
430 extern void add_job_opts(const char **, int);
431 extern char *num2str(unsigned long, int, int, int, int);
432 extern int ioengine_load(struct thread_data *);
433 extern int parse_dryrun(void);
435 extern uintptr_t page_mask;
436 extern uintptr_t page_size;
437 extern int initialize_fio(char *envp[]);
439 #define FIO_GETOPT_JOB 0x89000000
440 #define FIO_GETOPT_IOENGINE 0x98000000
441 #define FIO_NR_OPTIONS (FIO_MAX_OPTS + 128)
446 extern void print_thread_status(void);
447 extern void print_status_init(int);
448 extern char *fio_uint_to_kmg(unsigned int val);
451 * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it
452 * will never back again. It may cycle between running/verififying/fsyncing.
453 * Once the thread reaches TD_EXITED, it is just waiting for the core to
470 extern void td_set_runstate(struct thread_data *, int);
471 #define TERMINATE_ALL (-1)
472 extern void fio_terminate_threads(int);
477 extern int __must_check fio_pin_memory(struct thread_data *);
478 extern void fio_unpin_memory(struct thread_data *);
479 extern int __must_check allocate_io_mem(struct thread_data *);
480 extern void free_io_mem(struct thread_data *);
481 extern void free_threads_shm(void);
484 * Reset stats after ramp time completes
486 extern void reset_all_stats(struct thread_data *);
491 #ifdef FIO_HAVE_BLKTRACE
492 extern int is_blktrace(const char *, int *);
493 extern int load_blktrace(struct thread_data *, const char *, int);
497 * Latency target helpers
499 extern void lat_target_check(struct thread_data *);
500 extern void lat_target_init(struct thread_data *);
502 #define for_each_td(td, i) \
503 for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++)
504 #define for_each_file(td, f, i) \
505 if ((td)->files_index) \
506 for ((i) = 0, (f) = (td)->files[0]; \
507 (i) < (td)->o.nr_files && ((f) = (td)->files[i]) != NULL; \
510 #define fio_assert(td, cond) do { \
513 fprintf(stderr, "file:%s:%d, assert %s failed\n", __FILE__, __LINE__, #cond); \
514 td_set_runstate((td), TD_EXITED); \
515 (td)->error = EFAULT; \
520 static inline int fio_fill_issue_time(struct thread_data *td)
522 if (td->o.read_iolog_file ||
523 !td->o.disable_clat || !td->o.disable_slat || !td->o.disable_bw)
529 static inline int __should_check_rate(struct thread_data *td,
532 struct thread_options *o = &td->o;
535 * If some rate setting was given, we need to check it
537 if (o->rate[ddir] || o->ratemin[ddir] || o->rate_iops[ddir] ||
538 o->rate_iops_min[ddir])
544 static inline int should_check_rate(struct thread_data *td,
545 uint64_t *bytes_done)
549 if (bytes_done[DDIR_READ])
550 ret |= __should_check_rate(td, DDIR_READ);
551 if (bytes_done[DDIR_WRITE])
552 ret |= __should_check_rate(td, DDIR_WRITE);
553 if (bytes_done[DDIR_TRIM])
554 ret |= __should_check_rate(td, DDIR_TRIM);
559 static inline unsigned int td_max_bs(struct thread_data *td)
563 max_bs = max(td->o.max_bs[DDIR_READ], td->o.max_bs[DDIR_WRITE]);
564 return max(td->o.max_bs[DDIR_TRIM], max_bs);
567 static inline unsigned int td_min_bs(struct thread_data *td)
571 min_bs = min(td->o.min_bs[DDIR_READ], td->o.min_bs[DDIR_WRITE]);
572 return min(td->o.min_bs[DDIR_TRIM], min_bs);
575 static inline int is_power_of_2(unsigned int val)
577 return (val != 0 && ((val & (val - 1)) == 0));
581 * We currently only need to do locking if we have verifier threads
582 * accessing our internal structures too
584 static inline void td_io_u_lock(struct thread_data *td)
586 if (td->o.verify_async)
587 pthread_mutex_lock(&td->io_u_lock);
590 static inline void td_io_u_unlock(struct thread_data *td)
592 if (td->o.verify_async)
593 pthread_mutex_unlock(&td->io_u_lock);
596 static inline void td_io_u_free_notify(struct thread_data *td)
598 if (td->o.verify_async)
599 pthread_cond_signal(&td->free_cond);
602 extern const char *fio_get_arch_string(int);
603 extern const char *fio_get_os_string(int);
605 #define ARRAY_SIZE(x) (sizeof((x)) / (sizeof((x)[0])))
608 FIO_OUTPUT_TERSE = 0,
614 FIO_RAND_DIST_RANDOM = 0,
616 FIO_RAND_DIST_PARETO,
620 FIO_RAND_GEN_TAUSWORTHE = 0,