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"
43 #ifdef CONFIG_SOLARISAIO
44 #include <sys/asynch.h>
48 #include <linux/mempolicy.h>
52 * "local" is pseudo-policy
54 #define MPOL_LOCAL MPOL_MAX
58 * offset generator types
67 TD_F_TRIM_BACKLOG = 2,
69 TD_F_REFILL_BUFFERS = 8,
70 TD_F_SCRAMBLE_BUFFERS = 16,
72 TD_F_PROFILE_OPS = 64,
81 FIO_RAND_FILE_SIZE_OFF,
84 FIO_RAND_SEQ_RAND_OFF,
89 * This describes a single thread/process executing a fio job.
92 struct thread_options o;
95 char verror[FIO_VERROR_SIZE];
97 unsigned int thread_number;
99 struct thread_stat ts;
103 struct io_log *slat_log;
104 struct io_log *clat_log;
105 struct io_log *lat_log;
106 struct io_log *bw_log;
107 struct io_log *iops_log;
109 uint64_t stat_io_bytes[DDIR_RWDIR_CNT];
110 struct timeval bw_sample_time;
112 uint64_t stat_io_blocks[DDIR_RWDIR_CNT];
113 struct timeval iops_sample_time;
115 volatile int update_rusage;
116 struct fio_mutex *rusage_sem;
117 struct rusage ru_start;
118 struct rusage ru_end;
120 struct fio_file **files;
121 unsigned char *file_locks;
122 unsigned int files_size;
123 unsigned int files_index;
124 unsigned int nr_open_files;
125 unsigned int nr_done_files;
126 unsigned int nr_normal_files;
128 unsigned int next_file;
129 os_random_state_t next_file_state;
130 struct frand_state __next_file_state;
137 size_t orig_buffer_size;
138 volatile int terminate;
139 volatile int runstate;
140 unsigned int last_was_sync;
141 enum fio_ddir last_ddir;
150 unsigned long rand_seeds[FIO_RAND_NR_OFFS];
153 os_random_state_t bsrange_state;
154 struct frand_state __bsrange_state;
157 os_random_state_t verify_state;
158 struct frand_state __verify_state;
161 os_random_state_t trim_state;
162 struct frand_state __trim_state;
165 struct frand_state buf_state;
167 unsigned int verify_batch;
168 unsigned int trim_batch;
173 * IO engine hooks, contains everything needed to submit an io_u
174 * to any of the available IO engines.
176 struct ioengine_ops *io_ops;
179 * Queue depth of io_u's that fio MIGHT do
181 unsigned int cur_depth;
184 * io_u's about to be committed
186 unsigned int io_u_queued;
189 * io_u's submitted but not completed yet
191 unsigned int io_u_in_flight;
194 * List of free and busy io_u's
196 struct flist_head io_u_freelist;
197 struct flist_head io_u_busylist;
198 struct flist_head io_u_requeues;
199 pthread_mutex_t io_u_lock;
200 pthread_cond_t free_cond;
203 * async verify offload
205 struct flist_head verify_list;
206 pthread_t *verify_threads;
207 unsigned int nr_verify_threads;
208 pthread_cond_t verify_cond;
209 int verify_thread_exit;
214 uint64_t rate_bps[DDIR_RWDIR_CNT];
215 long rate_pending_usleep[DDIR_RWDIR_CNT];
216 unsigned long rate_bytes[DDIR_RWDIR_CNT];
217 unsigned long rate_blocks[DDIR_RWDIR_CNT];
218 struct timeval lastrate[DDIR_RWDIR_CNT];
220 uint64_t total_io_size;
221 uint64_t fill_device_size;
223 unsigned long io_issues[DDIR_RWDIR_CNT];
224 uint64_t io_blocks[DDIR_RWDIR_CNT];
225 uint64_t this_io_blocks[DDIR_RWDIR_CNT];
226 uint64_t io_bytes[DDIR_RWDIR_CNT];
227 uint64_t io_skip_bytes;
228 uint64_t this_io_bytes[DDIR_RWDIR_CNT];
230 struct fio_mutex *mutex;
233 * State for random io, a bitmap of blocks done vs not done
236 os_random_state_t random_state;
237 struct frand_state __random_state;
240 struct timeval start; /* start of this loop */
241 struct timeval epoch; /* time job was started */
242 struct timeval last_issue;
243 struct timeval tv_cache;
244 unsigned int tv_cache_nr;
245 unsigned int tv_cache_mask;
246 unsigned int ramp_time_over;
249 * read/write mixed workload state
252 os_random_state_t rwmix_state;
253 struct frand_state __rwmix_state;
255 unsigned long rwmix_issues;
256 enum fio_ddir rwmix_ddir;
257 unsigned int ddir_seq_nr;
260 * rand/seq mixed workload state
263 os_random_state_t seq_rand_state;
264 struct frand_state __seq_rand_state;
268 * IO history logs for verification. We use a tree for sorting,
269 * if we are overwriting. Otherwise just use a fifo.
271 struct rb_root io_hist_tree;
272 struct flist_head io_hist_list;
273 unsigned long io_hist_len;
278 struct flist_head io_log_list;
281 * For tracking/handling discards
283 struct flist_head trim_list;
284 unsigned long trim_entries;
286 struct flist_head next_rand_list;
289 * for fileservice, how often to switch to a new file
291 unsigned int file_service_nr;
292 unsigned int file_service_left;
293 struct fio_file *file_service_file;
295 unsigned int sync_file_range_nr;
298 * For generating file sizes
301 os_random_state_t file_size_state;
302 struct frand_state __file_size_state;
308 unsigned int total_err_count;
311 struct fio_flow *flow;
314 * Can be overloaded by profiles
316 struct prof_io_ops prof_io_ops;
323 * when should interactive ETA output be generated
331 #define __td_verror(td, err, msg, func) \
337 if (!(td)->first_error) \
338 snprintf(td->verror, sizeof(td->verror), "file:%s:%d, func=%s, error=%s", __FILE__, __LINE__, (func), (msg)); \
342 #define td_clear_error(td) \
344 #define td_verror(td, err, func) \
345 __td_verror((td), (err), strerror((err)), (func))
346 #define td_vmsg(td, err, msg, func) \
347 __td_verror((td), (err), (msg), (func))
349 #define __fio_stringify_1(x) #x
350 #define __fio_stringify(x) __fio_stringify_1(x)
352 extern int exitall_on_terminate;
353 extern unsigned int thread_number;
354 extern unsigned int stat_number;
357 extern int output_format;
358 extern int temp_stall_ts;
359 extern uintptr_t page_mask, page_size;
360 extern int read_only;
361 extern int eta_print;
362 extern int eta_new_line;
363 extern unsigned long done_secs;
364 extern char *job_section;
365 extern int fio_gtod_offload;
366 extern int fio_gtod_cpu;
367 extern enum fio_cs fio_clock_source;
368 extern int fio_clock_source_set;
369 extern int warnings_fatal;
370 extern int terse_version;
371 extern int is_backend;
372 extern int nr_clients;
373 extern int log_syslog;
374 extern int status_interval;
375 extern const char fio_version_string[];
377 extern struct thread_data *threads;
379 static inline void fio_ro_check(struct thread_data *td, struct io_u *io_u)
381 assert(!(io_u->ddir == DDIR_WRITE && !td_write(td)));
384 #define REAL_MAX_JOBS 2048
386 static inline int should_fsync(struct thread_data *td)
388 if (td->last_was_sync)
390 if (td_write(td) || td_rw(td) || td->o.override_sync)
397 * Init/option functions
399 extern int __must_check fio_init_options(void);
400 extern int __must_check parse_options(int, char **);
401 extern int parse_jobs_ini(char *, int, int, int);
402 extern int parse_cmd_line(int, char **, int);
403 extern int fio_backend(void);
404 extern void reset_fio_state(void);
405 extern void clear_io_state(struct thread_data *);
406 extern int fio_options_parse(struct thread_data *, char **, int);
407 extern void fio_keywords_init(void);
408 extern int fio_cmd_option_parse(struct thread_data *, const char *, char *);
409 extern int fio_cmd_ioengine_option_parse(struct thread_data *, const char *, char *);
410 extern void fio_fill_default_options(struct thread_data *);
411 extern int fio_show_option_help(const char *);
412 extern void fio_options_set_ioengine_opts(struct option *long_options, struct thread_data *td);
413 extern void fio_options_dup_and_init(struct option *);
414 extern void fio_options_mem_dupe(struct thread_data *);
415 extern void options_mem_dupe(void *data, struct fio_option *options);
416 extern void td_fill_rand_seeds(struct thread_data *);
417 extern void add_job_opts(const char **, int);
418 extern char *num2str(unsigned long, int, int, int, int);
419 extern int ioengine_load(struct thread_data *);
421 extern uintptr_t page_mask;
422 extern uintptr_t page_size;
423 extern int initialize_fio(char *envp[]);
425 #define FIO_GETOPT_JOB 0x89000000
426 #define FIO_GETOPT_IOENGINE 0x98000000
427 #define FIO_NR_OPTIONS (FIO_MAX_OPTS + 128)
432 extern void print_thread_status(void);
433 extern void print_status_init(int);
434 extern char *fio_uint_to_kmg(unsigned int val);
437 * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it
438 * will never back again. It may cycle between running/verififying/fsyncing.
439 * Once the thread reaches TD_EXITED, it is just waiting for the core to
456 extern void td_set_runstate(struct thread_data *, int);
457 #define TERMINATE_ALL (-1)
458 extern void fio_terminate_threads(int);
463 extern int __must_check fio_pin_memory(struct thread_data *);
464 extern void fio_unpin_memory(struct thread_data *);
465 extern int __must_check allocate_io_mem(struct thread_data *);
466 extern void free_io_mem(struct thread_data *);
467 extern void free_threads_shm(void);
470 * Reset stats after ramp time completes
472 extern void reset_all_stats(struct thread_data *);
477 #ifdef FIO_HAVE_BLKTRACE
478 extern int is_blktrace(const char *);
479 extern int load_blktrace(struct thread_data *, const char *);
482 #define for_each_td(td, i) \
483 for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++)
484 #define for_each_file(td, f, i) \
485 if ((td)->files_index) \
486 for ((i) = 0, (f) = (td)->files[0]; \
487 (i) < (td)->o.nr_files && ((f) = (td)->files[i]) != NULL; \
490 #define fio_assert(td, cond) do { \
493 fprintf(stderr, "file:%s:%d, assert %s failed\n", __FILE__, __LINE__, #cond); \
494 td_set_runstate((td), TD_EXITED); \
495 (td)->error = EFAULT; \
500 static inline int fio_fill_issue_time(struct thread_data *td)
502 if (td->o.read_iolog_file ||
503 !td->o.disable_clat || !td->o.disable_slat || !td->o.disable_bw)
509 static inline int __should_check_rate(struct thread_data *td,
512 struct thread_options *o = &td->o;
515 * If some rate setting was given, we need to check it
517 if (o->rate[ddir] || o->ratemin[ddir] || o->rate_iops[ddir] ||
518 o->rate_iops_min[ddir])
524 static inline int should_check_rate(struct thread_data *td,
525 uint64_t *bytes_done)
529 if (bytes_done[DDIR_READ])
530 ret |= __should_check_rate(td, DDIR_READ);
531 if (bytes_done[DDIR_WRITE])
532 ret |= __should_check_rate(td, DDIR_WRITE);
533 if (bytes_done[DDIR_TRIM])
534 ret |= __should_check_rate(td, DDIR_TRIM);
539 static inline unsigned int td_max_bs(struct thread_data *td)
543 max_bs = max(td->o.max_bs[DDIR_READ], td->o.max_bs[DDIR_WRITE]);
544 return max(td->o.max_bs[DDIR_TRIM], max_bs);
547 static inline unsigned int td_min_bs(struct thread_data *td)
551 min_bs = min(td->o.min_bs[DDIR_READ], td->o.min_bs[DDIR_WRITE]);
552 return min(td->o.min_bs[DDIR_TRIM], min_bs);
555 static inline int is_power_of_2(unsigned int val)
557 return (val != 0 && ((val & (val - 1)) == 0));
561 * We currently only need to do locking if we have verifier threads
562 * accessing our internal structures too
564 static inline void td_io_u_lock(struct thread_data *td)
566 if (td->o.verify_async)
567 pthread_mutex_lock(&td->io_u_lock);
570 static inline void td_io_u_unlock(struct thread_data *td)
572 if (td->o.verify_async)
573 pthread_mutex_unlock(&td->io_u_lock);
576 static inline void td_io_u_free_notify(struct thread_data *td)
578 if (td->o.verify_async)
579 pthread_cond_signal(&td->free_cond);
582 extern const char *fio_get_arch_string(int);
583 extern const char *fio_get_os_string(int);
585 #define ARRAY_SIZE(x) (sizeof((x)) / (sizeof((x)[0])))
588 FIO_OUTPUT_TERSE = 0,
594 FIO_RAND_DIST_RANDOM = 0,
596 FIO_RAND_DIST_PARETO,
600 FIO_RAND_GEN_TAUSWORTHE = 0,