8 #include <sys/resource.h>
19 #include "compiler/compiler.h"
20 #include "thread_options.h"
23 #include "lib/rbtree.h"
24 #include "arch/arch.h"
38 #include "lib/getopt.h"
49 #ifdef FIO_HAVE_SOLARISAIO
50 #include <sys/asynch.h>
53 #ifdef FIO_HAVE_LIBNUMA
54 #include <linux/mempolicy.h>
58 * "local" is pseudo-policy
60 #define MPOL_LOCAL MPOL_MAX
64 * offset generator types
74 TD_F_TRIM_BACKLOG = 2,
76 TD_F_REFILL_BUFFERS = 8,
77 TD_F_SCRAMBLE_BUFFERS = 16,
79 TD_F_PROFILE_OPS = 64,
88 FIO_RAND_FILE_SIZE_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 struct rusage ru_start;
122 struct rusage ru_end;
124 struct fio_file **files;
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 flist_head io_u_freelist;
200 struct flist_head io_u_busylist;
201 struct flist_head io_u_requeues;
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 unsigned long long 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 unsigned long long total_io_size;
224 unsigned long long fill_device_size;
226 unsigned long io_issues[DDIR_RWDIR_CNT];
227 unsigned long long io_blocks[DDIR_RWDIR_CNT];
228 unsigned long long this_io_blocks[DDIR_RWDIR_CNT];
229 unsigned long long io_bytes[DDIR_RWDIR_CNT];
230 unsigned long long io_skip_bytes;
231 unsigned long long this_io_bytes[DDIR_RWDIR_CNT];
232 unsigned long long zone_bytes;
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 * read/write mixed workload state
255 os_random_state_t rwmix_state;
256 struct frand_state __rwmix_state;
258 unsigned long rwmix_issues;
259 enum fio_ddir rwmix_ddir;
260 unsigned int ddir_seq_nr;
263 * IO history logs for verification. We use a tree for sorting,
264 * if we are overwriting. Otherwise just use a fifo.
266 struct rb_root io_hist_tree;
267 struct flist_head io_hist_list;
268 unsigned long io_hist_len;
273 struct flist_head io_log_list;
276 * For tracking/handling discards
278 struct flist_head trim_list;
279 unsigned long trim_entries;
282 * for fileservice, how often to switch to a new file
284 unsigned int file_service_nr;
285 unsigned int file_service_left;
286 struct fio_file *file_service_file;
288 unsigned int sync_file_range_nr;
291 * For generating file sizes
294 os_random_state_t file_size_state;
295 struct frand_state __file_size_state;
301 unsigned int total_err_count;
304 struct fio_flow *flow;
307 * Can be overloaded by profiles
309 struct prof_io_ops prof_io_ops;
316 * when should interactive ETA output be generated
324 #define __td_verror(td, err, msg, func) \
330 if (!(td)->first_error) \
331 snprintf(td->verror, sizeof(td->verror) - 1, "file:%s:%d, func=%s, error=%s", __FILE__, __LINE__, (func), (msg)); \
335 #define td_clear_error(td) \
337 #define td_verror(td, err, func) \
338 __td_verror((td), (err), strerror((err)), (func))
339 #define td_vmsg(td, err, msg, func) \
340 __td_verror((td), (err), (msg), (func))
342 #define __fio_stringify_1(x) #x
343 #define __fio_stringify(x) __fio_stringify_1(x)
345 extern int exitall_on_terminate;
346 extern unsigned int thread_number;
347 extern unsigned int stat_number;
350 extern int output_format;
351 extern int temp_stall_ts;
352 extern uintptr_t page_mask, page_size;
353 extern int read_only;
354 extern int eta_print;
355 extern unsigned long done_secs;
356 extern char *job_section;
357 extern int fio_gtod_offload;
358 extern int fio_gtod_cpu;
359 extern enum fio_cs fio_clock_source;
360 extern int fio_clock_source_set;
361 extern int warnings_fatal;
362 extern int terse_version;
363 extern int is_backend;
364 extern int nr_clients;
365 extern int log_syslog;
366 extern const char fio_version_string[];
367 extern const fio_fp64_t def_percentile_list[FIO_IO_U_LIST_MAX_LEN];
369 extern struct thread_data *threads;
371 static inline void fio_ro_check(struct thread_data *td, struct io_u *io_u)
373 assert(!(io_u->ddir == DDIR_WRITE && !td_write(td)));
376 #define REAL_MAX_JOBS 2048
378 static inline enum error_type_bit td_error_type(enum fio_ddir ddir, int err)
381 return ERROR_TYPE_VERIFY_BIT;
382 if (ddir == DDIR_READ)
383 return ERROR_TYPE_READ_BIT;
384 return ERROR_TYPE_WRITE_BIT;
387 static int __NON_FATAL_ERR[] = {EIO, EILSEQ};
388 static inline int td_non_fatal_error(struct thread_data *td,
389 enum error_type_bit etype, int err)
392 if (!td->o.ignore_error[etype]) {
393 td->o.ignore_error[etype] = __NON_FATAL_ERR;
394 td->o.ignore_error_nr[etype] = sizeof(__NON_FATAL_ERR)
398 if (!(td->o.continue_on_error & (1 << etype)))
400 for (i = 0; i < td->o.ignore_error_nr[etype]; i++)
401 if (td->o.ignore_error[etype][i] == err)
406 static inline void update_error_count(struct thread_data *td, int err)
408 td->total_err_count++;
409 if (td->total_err_count == 1)
410 td->first_error = err;
413 static inline int should_fsync(struct thread_data *td)
415 if (td->last_was_sync)
419 if (td_write(td) || td_rw(td) || td->o.override_sync)
426 * Init/option functions
428 extern int __must_check fio_init_options(void);
429 extern int __must_check parse_options(int, char **);
430 extern int parse_jobs_ini(char *, int, int, int);
431 extern int parse_cmd_line(int, char **, int);
432 extern int fio_backend(void);
433 extern void reset_fio_state(void);
434 extern void clear_io_state(struct thread_data *);
435 extern int fio_options_parse(struct thread_data *, char **, int);
436 extern void fio_keywords_init(void);
437 extern int fio_cmd_option_parse(struct thread_data *, const char *, char *);
438 extern int fio_cmd_ioengine_option_parse(struct thread_data *, const char *, char *);
439 extern void fio_fill_default_options(struct thread_data *);
440 extern int fio_show_option_help(const char *);
441 extern void fio_options_set_ioengine_opts(struct option *long_options, struct thread_data *td);
442 extern void fio_options_dup_and_init(struct option *);
443 extern void fio_options_mem_dupe(struct thread_data *);
444 extern void options_mem_dupe(void *data, struct fio_option *options);
445 extern void td_fill_rand_seeds(struct thread_data *);
446 extern void add_job_opts(const char **, int);
447 extern char *num2str(unsigned long, int, int, int);
448 extern int ioengine_load(struct thread_data *);
450 extern unsigned long page_mask;
451 extern unsigned long page_size;
452 extern int initialize_fio(char *envp[]);
454 #define FIO_GETOPT_JOB 0x89000000
455 #define FIO_GETOPT_IOENGINE 0x98000000
456 #define FIO_NR_OPTIONS (FIO_MAX_OPTS + 128)
461 extern void print_thread_status(void);
462 extern void print_status_init(int);
463 extern char *fio_uint_to_kmg(unsigned int val);
466 * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it
467 * will never back again. It may cycle between running/verififying/fsyncing.
468 * Once the thread reaches TD_EXITED, it is just waiting for the core to
485 extern void td_set_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 *);
508 extern int load_blktrace(struct thread_data *, const char *);
512 * Mark unused variables passed to ops functions as unused, to silence gcc
514 #define fio_unused __attribute((__unused__))
515 #define fio_init __attribute__((constructor))
516 #define fio_exit __attribute__((destructor))
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 unsigned long *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 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,