8 #include <sys/resource.h>
19 #include "compiler/compiler.h"
20 #include "thread_options.h"
24 #include "arch/arch.h"
38 #include "lib/getopt.h"
49 #ifdef FIO_HAVE_SOLARISAIO
50 #include <sys/asynch.h>
54 * offset generator types
62 * This describes a single thread/process executing a fio job.
65 struct thread_options o;
67 char verror[FIO_VERROR_SIZE];
71 struct thread_stat ts;
73 struct io_log *slat_log;
74 struct io_log *clat_log;
75 struct io_log *lat_log;
76 struct io_log *bw_log;
77 struct io_log *iops_log;
79 uint64_t stat_io_bytes[2];
80 struct timeval bw_sample_time;
82 uint64_t stat_io_blocks[2];
83 struct timeval iops_sample_time;
85 struct rusage ru_start;
88 struct fio_file **files;
89 unsigned int files_size;
90 unsigned int files_index;
91 unsigned int nr_open_files;
92 unsigned int nr_done_files;
93 unsigned int nr_normal_files;
95 unsigned int next_file;
96 os_random_state_t next_file_state;
97 struct frand_state __next_file_state;
103 size_t orig_buffer_size;
104 volatile int terminate;
105 volatile int runstate;
107 unsigned int ioprio_set;
108 unsigned int last_was_sync;
109 enum fio_ddir last_ddir;
119 unsigned long rand_seeds[8];
122 os_random_state_t bsrange_state;
123 struct frand_state __bsrange_state;
126 os_random_state_t verify_state;
127 struct frand_state __verify_state;
130 os_random_state_t trim_state;
131 struct frand_state __trim_state;
134 struct frand_state buf_state;
136 unsigned int verify_batch;
137 unsigned int trim_batch;
142 * IO engine hooks, contains everything needed to submit an io_u
143 * to any of the available IO engines.
145 struct ioengine_ops *io_ops;
148 * Queue depth of io_u's that fio MIGHT do
150 unsigned int cur_depth;
153 * io_u's about to be committed
155 unsigned int io_u_queued;
158 * io_u's submitted but not completed yet
160 unsigned int io_u_in_flight;
163 * List of free and busy io_u's
165 struct flist_head io_u_freelist;
166 struct flist_head io_u_busylist;
167 struct flist_head io_u_requeues;
168 pthread_mutex_t io_u_lock;
169 pthread_cond_t free_cond;
172 * async verify offload
174 struct flist_head verify_list;
175 pthread_t *verify_threads;
176 unsigned int nr_verify_threads;
177 pthread_cond_t verify_cond;
178 int verify_thread_exit;
183 unsigned long long rate_bps[2];
184 long rate_pending_usleep[2];
185 unsigned long rate_bytes[2];
186 unsigned long rate_blocks[2];
187 struct timeval lastrate[2];
189 unsigned long long total_io_size;
190 unsigned long long fill_device_size;
192 unsigned long io_issues[2];
193 unsigned long long io_blocks[2];
194 unsigned long long this_io_blocks[2];
195 unsigned long long io_bytes[2];
196 unsigned long long io_skip_bytes;
197 unsigned long long this_io_bytes[2];
198 unsigned long long zone_bytes;
199 struct fio_mutex *mutex;
202 * State for random io, a bitmap of blocks done vs not done
205 os_random_state_t random_state;
206 struct frand_state __random_state;
209 struct timeval start; /* start of this loop */
210 struct timeval epoch; /* time job was started */
211 struct timeval last_issue;
212 struct timeval tv_cache;
213 unsigned int tv_cache_nr;
214 unsigned int tv_cache_mask;
215 unsigned int ramp_time_over;
218 * read/write mixed workload state
221 os_random_state_t rwmix_state;
222 struct frand_state __rwmix_state;
224 unsigned long rwmix_issues;
225 enum fio_ddir rwmix_ddir;
226 unsigned int ddir_seq_nr;
229 * IO history logs for verification. We use a tree for sorting,
230 * if we are overwriting. Otherwise just use a fifo.
232 struct rb_root io_hist_tree;
233 struct flist_head io_hist_list;
234 unsigned long io_hist_len;
239 struct flist_head io_log_list;
242 * For tracking/handling discards
244 struct flist_head trim_list;
245 unsigned long trim_entries;
248 * for fileservice, how often to switch to a new file
250 unsigned int file_service_nr;
251 unsigned int file_service_left;
252 struct fio_file *file_service_file;
254 unsigned int sync_file_range_nr;
257 * For generating file sizes
260 os_random_state_t file_size_state;
261 struct frand_state __file_size_state;
267 unsigned int total_err_count;
270 struct fio_flow *flow;
273 * Can be overloaded by profiles
275 struct prof_io_ops prof_io_ops;
280 * when should interactive ETA output be generated
288 #define __td_verror(td, err, msg, func) \
294 if (!(td)->first_error) \
295 snprintf(td->verror, sizeof(td->verror) - 1, "file:%s:%d, func=%s, error=%s", __FILE__, __LINE__, (func), (msg)); \
299 #define td_clear_error(td) \
301 #define td_verror(td, err, func) \
302 __td_verror((td), (err), strerror((err)), (func))
303 #define td_vmsg(td, err, msg, func) \
304 __td_verror((td), (err), (msg), (func))
306 #define __fio_stringify_1(x) #x
307 #define __fio_stringify(x) __fio_stringify_1(x)
309 extern int exitall_on_terminate;
310 extern unsigned int thread_number;
311 extern unsigned int nr_process, nr_thread;
314 extern int terse_output;
315 extern int temp_stall_ts;
316 extern unsigned long long mlock_size;
317 extern unsigned long page_mask, page_size;
318 extern int read_only;
319 extern int eta_print;
320 extern unsigned long done_secs;
321 extern char *job_section;
322 extern int fio_gtod_offload;
323 extern int fio_gtod_cpu;
324 extern enum fio_cs fio_clock_source;
325 extern int warnings_fatal;
326 extern int terse_version;
327 extern int is_backend;
328 extern int nr_clients;
329 extern int log_syslog;
330 extern const char fio_version_string[];
331 extern const fio_fp64_t def_percentile_list[FIO_IO_U_LIST_MAX_LEN];
333 extern struct thread_data *threads;
335 static inline void fio_ro_check(struct thread_data *td, struct io_u *io_u)
337 assert(!(io_u->ddir == DDIR_WRITE && !td_write(td)));
340 #define BLOCKS_PER_MAP (8 * sizeof(unsigned long))
341 #define TO_MAP_BLOCK(f, b) (b)
342 #define RAND_MAP_IDX(f, b) (TO_MAP_BLOCK(f, b) / BLOCKS_PER_MAP)
343 #define RAND_MAP_BIT(f, b) (TO_MAP_BLOCK(f, b) & (BLOCKS_PER_MAP - 1))
345 #define REAL_MAX_JOBS 2048
347 #define td_non_fatal_error(e) ((e) == EIO || (e) == EILSEQ)
349 static inline enum error_type td_error_type(enum fio_ddir ddir, int err)
352 return ERROR_TYPE_VERIFY;
353 if (ddir == DDIR_READ)
354 return ERROR_TYPE_READ;
355 return ERROR_TYPE_WRITE;
358 static inline void update_error_count(struct thread_data *td, int err)
360 td->total_err_count++;
361 if (td->total_err_count == 1)
362 td->first_error = err;
365 static inline int should_fsync(struct thread_data *td)
367 if (td->last_was_sync)
371 if (td_write(td) || td_rw(td) || td->o.override_sync)
378 * Init/option functions
380 extern int __must_check fio_init_options(void);
381 extern int __must_check parse_options(int, char **);
382 extern int parse_jobs_ini(char *, int, int);
383 extern int parse_cmd_line(int, char **);
384 extern int fio_backend(void);
385 extern void reset_fio_state(void);
386 extern void clear_io_state(struct thread_data *);
387 extern int fio_options_parse(struct thread_data *, char **, int);
388 extern void fio_keywords_init(void);
389 extern int fio_cmd_option_parse(struct thread_data *, const char *, char *);
390 extern int fio_cmd_ioengine_option_parse(struct thread_data *, const char *, char *);
391 extern void fio_fill_default_options(struct thread_data *);
392 extern int fio_show_option_help(const char *);
393 extern void fio_options_set_ioengine_opts(struct option *long_options, struct thread_data *td);
394 extern void fio_options_dup_and_init(struct option *);
395 extern void fio_options_mem_dupe(struct thread_data *);
396 extern void options_mem_dupe(void *data, struct fio_option *options);
397 extern void td_fill_rand_seeds(struct thread_data *);
398 extern void add_job_opts(const char **);
399 extern char *num2str(unsigned long, int, int, int);
400 extern int ioengine_load(struct thread_data *);
402 extern unsigned long page_mask;
403 extern unsigned long page_size;
404 extern int initialize_fio(char *envp[]);
406 #define FIO_GETOPT_JOB 0x89000000
407 #define FIO_GETOPT_IOENGINE 0x98000000
408 #define FIO_NR_OPTIONS (FIO_MAX_OPTS + 128)
413 extern void print_thread_status(void);
414 extern void print_status_init(int);
417 * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it
418 * will never back again. It may cycle between running/verififying/fsyncing.
419 * Once the thread reaches TD_EXITED, it is just waiting for the core to
435 extern void td_set_runstate(struct thread_data *, int);
436 #define TERMINATE_ALL (-1)
437 extern void fio_terminate_threads(int);
442 extern int __must_check fio_pin_memory(void);
443 extern void fio_unpin_memory(void);
444 extern int __must_check allocate_io_mem(struct thread_data *);
445 extern void free_io_mem(struct thread_data *);
448 * Reset stats after ramp time completes
450 extern void reset_all_stats(struct thread_data *);
455 #ifdef FIO_HAVE_BLKTRACE
456 extern int is_blktrace(const char *);
457 extern int load_blktrace(struct thread_data *, const char *);
461 * Mark unused variables passed to ops functions as unused, to silence gcc
463 #define fio_unused __attribute((__unused__))
464 #define fio_init __attribute__((constructor))
465 #define fio_exit __attribute__((destructor))
467 #define for_each_td(td, i) \
468 for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++)
469 #define for_each_file(td, f, i) \
470 if ((td)->files_index) \
471 for ((i) = 0, (f) = (td)->files[0]; \
472 (i) < (td)->o.nr_files && ((f) = (td)->files[i]) != NULL; \
475 #define fio_assert(td, cond) do { \
478 fprintf(stderr, "file:%s:%d, assert %s failed\n", __FILE__, __LINE__, #cond); \
479 td_set_runstate((td), TD_EXITED); \
480 (td)->error = EFAULT; \
485 static inline int fio_fill_issue_time(struct thread_data *td)
487 if (td->o.read_iolog_file ||
488 !td->o.disable_clat || !td->o.disable_slat || !td->o.disable_bw)
494 static inline int __should_check_rate(struct thread_data *td,
497 struct thread_options *o = &td->o;
500 * If some rate setting was given, we need to check it
502 if (o->rate[ddir] || o->ratemin[ddir] || o->rate_iops[ddir] ||
503 o->rate_iops_min[ddir])
509 static inline int should_check_rate(struct thread_data *td,
510 unsigned long *bytes_done)
515 ret |= __should_check_rate(td, 0);
517 ret |= __should_check_rate(td, 1);
522 static inline int is_power_of_2(unsigned int val)
524 return (val != 0 && ((val & (val - 1)) == 0));
528 * We currently only need to do locking if we have verifier threads
529 * accessing our internal structures too
531 static inline void td_io_u_lock(struct thread_data *td)
533 if (td->o.verify_async)
534 pthread_mutex_lock(&td->io_u_lock);
537 static inline void td_io_u_unlock(struct thread_data *td)
539 if (td->o.verify_async)
540 pthread_mutex_unlock(&td->io_u_lock);
543 static inline void td_io_u_free_notify(struct thread_data *td)
545 if (td->o.verify_async)
546 pthread_cond_signal(&td->free_cond);
549 extern const char *fio_get_arch_string(int);
550 extern const char *fio_get_os_string(int);