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_OFF,
90 * This describes a single thread/process executing a fio job.
93 struct thread_options o;
96 char verror[FIO_VERROR_SIZE];
98 unsigned int thread_number;
100 struct thread_stat ts;
104 struct io_log *slat_log;
105 struct io_log *clat_log;
106 struct io_log *lat_log;
107 struct io_log *bw_log;
108 struct io_log *iops_log;
110 uint64_t stat_io_bytes[DDIR_RWDIR_CNT];
111 struct timeval bw_sample_time;
113 uint64_t stat_io_blocks[DDIR_RWDIR_CNT];
114 struct timeval iops_sample_time;
116 volatile int update_rusage;
117 struct fio_mutex *rusage_sem;
118 struct rusage ru_start;
119 struct rusage ru_end;
121 struct fio_file **files;
122 unsigned char *file_locks;
123 unsigned int files_size;
124 unsigned int files_index;
125 unsigned int nr_open_files;
126 unsigned int nr_done_files;
127 unsigned int nr_normal_files;
129 unsigned int next_file;
130 os_random_state_t next_file_state;
131 struct frand_state __next_file_state;
138 size_t orig_buffer_size;
139 volatile int terminate;
140 volatile int runstate;
141 unsigned int last_was_sync;
142 enum fio_ddir last_ddir;
151 unsigned long rand_seeds[FIO_RAND_NR_OFFS];
154 os_random_state_t bsrange_state;
155 struct frand_state __bsrange_state;
158 os_random_state_t verify_state;
159 struct frand_state __verify_state;
162 os_random_state_t trim_state;
163 struct frand_state __trim_state;
166 struct frand_state buf_state;
168 unsigned int verify_batch;
169 unsigned int trim_batch;
174 * IO engine hooks, contains everything needed to submit an io_u
175 * to any of the available IO engines.
177 struct ioengine_ops *io_ops;
180 * Queue depth of io_u's that fio MIGHT do
182 unsigned int cur_depth;
185 * io_u's about to be committed
187 unsigned int io_u_queued;
190 * io_u's submitted but not completed yet
192 unsigned int io_u_in_flight;
195 * List of free and busy io_u's
197 struct io_u_ring io_u_requeues;
198 struct io_u_queue io_u_freelist;
199 struct io_u_queue io_u_all;
200 pthread_mutex_t io_u_lock;
201 pthread_cond_t free_cond;
204 * async verify offload
206 struct flist_head verify_list;
207 pthread_t *verify_threads;
208 unsigned int nr_verify_threads;
209 pthread_cond_t verify_cond;
210 int verify_thread_exit;
215 uint64_t rate_bps[DDIR_RWDIR_CNT];
216 long rate_pending_usleep[DDIR_RWDIR_CNT];
217 unsigned long rate_bytes[DDIR_RWDIR_CNT];
218 unsigned long rate_blocks[DDIR_RWDIR_CNT];
219 struct timeval lastrate[DDIR_RWDIR_CNT];
221 uint64_t total_io_size;
222 uint64_t fill_device_size;
224 unsigned long io_issues[DDIR_RWDIR_CNT];
225 uint64_t io_blocks[DDIR_RWDIR_CNT];
226 uint64_t this_io_blocks[DDIR_RWDIR_CNT];
227 uint64_t io_bytes[DDIR_RWDIR_CNT];
228 uint64_t io_skip_bytes;
229 uint64_t this_io_bytes[DDIR_RWDIR_CNT];
231 struct fio_mutex *mutex;
234 * State for random io, a bitmap of blocks done vs not done
237 os_random_state_t random_state;
238 struct frand_state __random_state;
241 struct timeval start; /* start of this loop */
242 struct timeval epoch; /* time job was started */
243 struct timeval last_issue;
244 struct timeval tv_cache;
245 unsigned int tv_cache_nr;
246 unsigned int tv_cache_mask;
247 unsigned int ramp_time_over;
250 * read/write mixed workload state
253 os_random_state_t rwmix_state;
254 struct frand_state __rwmix_state;
256 unsigned long rwmix_issues;
257 enum fio_ddir rwmix_ddir;
258 unsigned int ddir_seq_nr;
261 * rand/seq mixed workload state
264 os_random_state_t seq_rand_state;
265 struct frand_state __seq_rand_state;
269 * IO history logs for verification. We use a tree for sorting,
270 * if we are overwriting. Otherwise just use a fifo.
272 struct rb_root io_hist_tree;
273 struct flist_head io_hist_list;
274 unsigned long io_hist_len;
279 struct flist_head io_log_list;
282 * For tracking/handling discards
284 struct flist_head trim_list;
285 unsigned long trim_entries;
287 struct flist_head next_rand_list;
290 * for fileservice, how often to switch to a new file
292 unsigned int file_service_nr;
293 unsigned int file_service_left;
294 struct fio_file *file_service_file;
296 unsigned int sync_file_range_nr;
299 * For generating file sizes
302 os_random_state_t file_size_state;
303 struct frand_state __file_size_state;
309 unsigned int total_err_count;
312 struct fio_flow *flow;
315 * Can be overloaded by profiles
317 struct prof_io_ops prof_io_ops;
324 * when should interactive ETA output be generated
332 #define __td_verror(td, err, msg, func) \
338 if (!(td)->first_error) \
339 snprintf(td->verror, sizeof(td->verror), "file:%s:%d, func=%s, error=%s", __FILE__, __LINE__, (func), (msg)); \
343 #define td_clear_error(td) \
345 #define td_verror(td, err, func) \
346 __td_verror((td), (err), strerror((err)), (func))
347 #define td_vmsg(td, err, msg, func) \
348 __td_verror((td), (err), (msg), (func))
350 #define __fio_stringify_1(x) #x
351 #define __fio_stringify(x) __fio_stringify_1(x)
353 extern int exitall_on_terminate;
354 extern unsigned int thread_number;
355 extern unsigned int stat_number;
358 extern int output_format;
359 extern int temp_stall_ts;
360 extern uintptr_t page_mask, page_size;
361 extern int read_only;
362 extern int eta_print;
363 extern int eta_new_line;
364 extern unsigned long done_secs;
365 extern char *job_section;
366 extern int fio_gtod_offload;
367 extern int fio_gtod_cpu;
368 extern enum fio_cs fio_clock_source;
369 extern int fio_clock_source_set;
370 extern int warnings_fatal;
371 extern int terse_version;
372 extern int is_backend;
373 extern int nr_clients;
374 extern int log_syslog;
375 extern int status_interval;
376 extern const char fio_version_string[];
378 extern struct thread_data *threads;
380 static inline void fio_ro_check(struct thread_data *td, struct io_u *io_u)
382 assert(!(io_u->ddir == DDIR_WRITE && !td_write(td)));
385 #define REAL_MAX_JOBS 2048
387 static inline int should_fsync(struct thread_data *td)
389 if (td->last_was_sync)
391 if (td_write(td) || td_rw(td) || td->o.override_sync)
398 * Init/option functions
400 extern int __must_check fio_init_options(void);
401 extern int __must_check parse_options(int, char **);
402 extern int parse_jobs_ini(char *, int, int, int);
403 extern int parse_cmd_line(int, char **, int);
404 extern int fio_backend(void);
405 extern void reset_fio_state(void);
406 extern void clear_io_state(struct thread_data *);
407 extern int fio_options_parse(struct thread_data *, char **, int);
408 extern void fio_keywords_init(void);
409 extern int fio_cmd_option_parse(struct thread_data *, const char *, char *);
410 extern int fio_cmd_ioengine_option_parse(struct thread_data *, const char *, char *);
411 extern void fio_fill_default_options(struct thread_data *);
412 extern int fio_show_option_help(const char *);
413 extern void fio_options_set_ioengine_opts(struct option *long_options, struct thread_data *td);
414 extern void fio_options_dup_and_init(struct option *);
415 extern void fio_options_mem_dupe(struct thread_data *);
416 extern void options_mem_dupe(void *data, struct fio_option *options);
417 extern void td_fill_rand_seeds(struct thread_data *);
418 extern void add_job_opts(const char **, int);
419 extern char *num2str(unsigned long, int, int, int, int);
420 extern int ioengine_load(struct thread_data *);
422 extern uintptr_t page_mask;
423 extern uintptr_t page_size;
424 extern int initialize_fio(char *envp[]);
426 #define FIO_GETOPT_JOB 0x89000000
427 #define FIO_GETOPT_IOENGINE 0x98000000
428 #define FIO_NR_OPTIONS (FIO_MAX_OPTS + 128)
433 extern void print_thread_status(void);
434 extern void print_status_init(int);
435 extern char *fio_uint_to_kmg(unsigned int val);
438 * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it
439 * will never back again. It may cycle between running/verififying/fsyncing.
440 * Once the thread reaches TD_EXITED, it is just waiting for the core to
457 extern void td_set_runstate(struct thread_data *, int);
458 #define TERMINATE_ALL (-1)
459 extern void fio_terminate_threads(int);
464 extern int __must_check fio_pin_memory(struct thread_data *);
465 extern void fio_unpin_memory(struct thread_data *);
466 extern int __must_check allocate_io_mem(struct thread_data *);
467 extern void free_io_mem(struct thread_data *);
468 extern void free_threads_shm(void);
471 * Reset stats after ramp time completes
473 extern void reset_all_stats(struct thread_data *);
478 #ifdef FIO_HAVE_BLKTRACE
479 extern int is_blktrace(const char *);
480 extern int load_blktrace(struct thread_data *, const char *);
483 #define for_each_td(td, i) \
484 for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++)
485 #define for_each_file(td, f, i) \
486 if ((td)->files_index) \
487 for ((i) = 0, (f) = (td)->files[0]; \
488 (i) < (td)->o.nr_files && ((f) = (td)->files[i]) != NULL; \
491 #define fio_assert(td, cond) do { \
494 fprintf(stderr, "file:%s:%d, assert %s failed\n", __FILE__, __LINE__, #cond); \
495 td_set_runstate((td), TD_EXITED); \
496 (td)->error = EFAULT; \
501 static inline int fio_fill_issue_time(struct thread_data *td)
503 if (td->o.read_iolog_file ||
504 !td->o.disable_clat || !td->o.disable_slat || !td->o.disable_bw)
510 static inline int __should_check_rate(struct thread_data *td,
513 struct thread_options *o = &td->o;
516 * If some rate setting was given, we need to check it
518 if (o->rate[ddir] || o->ratemin[ddir] || o->rate_iops[ddir] ||
519 o->rate_iops_min[ddir])
525 static inline int should_check_rate(struct thread_data *td,
526 uint64_t *bytes_done)
530 if (bytes_done[DDIR_READ])
531 ret |= __should_check_rate(td, DDIR_READ);
532 if (bytes_done[DDIR_WRITE])
533 ret |= __should_check_rate(td, DDIR_WRITE);
534 if (bytes_done[DDIR_TRIM])
535 ret |= __should_check_rate(td, DDIR_TRIM);
540 static inline unsigned int td_max_bs(struct thread_data *td)
544 max_bs = max(td->o.max_bs[DDIR_READ], td->o.max_bs[DDIR_WRITE]);
545 return max(td->o.max_bs[DDIR_TRIM], max_bs);
548 static inline unsigned int td_min_bs(struct thread_data *td)
552 min_bs = min(td->o.min_bs[DDIR_READ], td->o.min_bs[DDIR_WRITE]);
553 return min(td->o.min_bs[DDIR_TRIM], min_bs);
556 static inline int is_power_of_2(unsigned int val)
558 return (val != 0 && ((val & (val - 1)) == 0));
562 * We currently only need to do locking if we have verifier threads
563 * accessing our internal structures too
565 static inline void td_io_u_lock(struct thread_data *td)
567 if (td->o.verify_async)
568 pthread_mutex_lock(&td->io_u_lock);
571 static inline void td_io_u_unlock(struct thread_data *td)
573 if (td->o.verify_async)
574 pthread_mutex_unlock(&td->io_u_lock);
577 static inline void td_io_u_free_notify(struct thread_data *td)
579 if (td->o.verify_async)
580 pthread_cond_signal(&td->free_cond);
583 extern const char *fio_get_arch_string(int);
584 extern const char *fio_get_os_string(int);
586 #define ARRAY_SIZE(x) (sizeof((x)) / (sizeof((x)[0])))
589 FIO_OUTPUT_TERSE = 0,
595 FIO_RAND_DIST_RANDOM = 0,
597 FIO_RAND_DIST_PARETO,
601 FIO_RAND_GEN_TAUSWORTHE = 0,