8 #include <sys/resource.h>
18 #include "compiler/compiler.h"
22 #include "arch/arch.h"
40 TD_DDIR_READ = 1 << 0,
41 TD_DDIR_WRITE = 1 << 1,
42 TD_DDIR_RAND = 1 << 2,
43 TD_DDIR_RW = TD_DDIR_READ | TD_DDIR_WRITE,
44 TD_DDIR_RANDREAD = TD_DDIR_READ | TD_DDIR_RAND,
45 TD_DDIR_RANDWRITE = TD_DDIR_WRITE | TD_DDIR_RAND,
46 TD_DDIR_RANDRW = TD_DDIR_RW | TD_DDIR_RAND,
50 * Use for maintaining statistics
53 unsigned long max_val;
54 unsigned long min_val;
55 unsigned long samples;
62 * A single data sample
71 * Dynamically growing data sample log
74 unsigned long nr_samples;
75 unsigned long max_samples;
76 struct io_sample *log;
80 * When logging io actions, this matches a single sent io_u
84 struct rb_node rb_node;
85 struct list_head list;
89 struct fio_file *file;
91 unsigned long long offset;
96 unsigned int file_action;
101 IO_U_F_FREE = 1 << 0,
102 IO_U_F_FLIGHT = 1 << 1,
112 #ifdef FIO_HAVE_LIBAIO
115 #ifdef FIO_HAVE_POSIXAIO
119 struct sg_io_hdr hdr;
121 #ifdef FIO_HAVE_GUASI
125 struct timeval start_time;
126 struct timeval issue_time;
129 * Allocated/set buffer and length
132 unsigned long buflen;
133 unsigned long long offset;
134 unsigned long long endpos;
137 * IO engine state, may be different from above when we get
138 * partial transfers / residual data counts
141 unsigned long xfer_buflen;
149 * io engine private data
158 struct fio_file *file;
160 struct list_head list;
163 * Callback for io completion
165 int (*end_io)(struct thread_data *, struct io_u *);
169 * io_ops->queue() return values
172 FIO_Q_COMPLETED = 0, /* completed sync */
173 FIO_Q_QUEUED = 1, /* queued, will complete async */
174 FIO_Q_BUSY = 2, /* no more room, call ->commit() */
177 #define FIO_HDR_MAGIC 0xf00baaef
180 VERIFY_NONE = 0, /* no verification */
181 VERIFY_MD5, /* md5 sum data blocks */
182 VERIFY_CRC64, /* crc64 sum data blocks */
183 VERIFY_CRC32, /* crc32 sum data blocks */
184 VERIFY_CRC16, /* crc16 sum data blocks */
185 VERIFY_CRC7, /* crc7 sum data blocks */
186 VERIFY_SHA256, /* sha256 sum data blocks */
187 VERIFY_SHA512, /* sha512 sum data blocks */
188 VERIFY_META, /* block_num, timestamp etc. */
189 VERIFY_NULL, /* pretend to verify */
193 * A header structure associated with each checksummed data block. It is
194 * followed by a checksum specific header that contains the verification
197 struct verify_header {
198 unsigned int fio_magic;
200 unsigned int verify_type;
204 uint32_t md5_digest[16];
226 unsigned char thread;
227 unsigned short numberio;
228 unsigned long time_sec;
229 unsigned long time_usec;
232 struct group_run_stats {
233 unsigned long long max_run[2], min_run[2];
234 unsigned long long max_bw[2], min_bw[2];
235 unsigned long long io_kb[2];
236 unsigned long long agg[2];
240 * What type of allocation to use for io buffers
243 MEM_MALLOC = 0, /* ordinary malloc */
244 MEM_SHM, /* use shared memory segments */
245 MEM_SHMHUGE, /* use shared memory segments with huge pages */
246 MEM_MMAP, /* use anonynomous mmap */
247 MEM_MMAPHUGE, /* memory mapped huge file */
251 * The type of object we are working on
254 FIO_TYPE_FILE = 1, /* plain file */
255 FIO_TYPE_BD, /* block device */
256 FIO_TYPE_CHAR, /* character device */
257 FIO_TYPE_PIPE, /* pipe */
260 enum fio_ioengine_flags {
261 FIO_SYNCIO = 1 << 0, /* io engine has synchronous ->queue */
262 FIO_RAWIO = 1 << 1, /* some sort of direct/raw io */
263 FIO_DISKLESSIO = 1 << 2, /* no disk involved */
264 FIO_NOEXTEND = 1 << 3, /* engine can't extend file */
265 FIO_NODISKUTIL = 1 << 4, /* diskutil can't handle filename */
266 FIO_UNIDIR = 1 << 5, /* engine is uni-directional */
267 FIO_NOIO = 1 << 6, /* thread does only pseudo IO */
268 FIO_SIGQUIT = 1 << 7, /* needs SIGQUIT to exit */
271 enum fio_file_flags {
272 FIO_FILE_OPEN = 1 << 0, /* file is open */
273 FIO_FILE_CLOSING = 1 << 1, /* file being closed */
274 FIO_FILE_EXTEND = 1 << 2, /* needs extend */
275 FIO_FILE_DONE = 1 << 3, /* io completed to this file */
276 FIO_SIZE_KNOWN = 1 << 4, /* size has been set */
280 * Each thread_data structure has a number of files associated with it,
281 * this structure holds state information for a single file.
284 enum fio_filetype filetype;
287 * A file may not be a file descriptor, let the io engine decide
290 unsigned long file_data;
295 * filename and possible memory mapping
299 unsigned int major, minor;
302 * size of the file, offset into file, and io size from that offset
304 unsigned long long real_file_size;
305 unsigned long long file_offset;
306 unsigned long long io_size;
308 unsigned long long last_pos;
311 * block map for random io
313 unsigned long *file_map;
314 unsigned int num_maps;
315 unsigned int last_free_lookup;
318 enum fio_file_flags flags;
322 * How many depth levels to log
324 #define FIO_IO_U_MAP_NR 8
325 #define FIO_IO_U_LAT_U_NR 10
326 #define FIO_IO_U_LAT_M_NR 12
337 struct io_log *slat_log;
338 struct io_log *clat_log;
339 struct io_log *bw_log;
342 * bandwidth and latency stats
344 struct io_stat clat_stat[2]; /* completion latency */
345 struct io_stat slat_stat[2]; /* submission latency */
346 struct io_stat bw_stat[2]; /* bandwidth stats */
348 unsigned long long stat_io_bytes[2];
349 struct timeval stat_sample_time[2];
352 * fio system usage accounting
354 struct rusage ru_start;
355 struct rusage ru_end;
356 unsigned long usr_time;
357 unsigned long sys_time;
359 unsigned long minf, majf;
362 * IO depth and latency stats
364 unsigned int io_u_map[FIO_IO_U_MAP_NR];
365 unsigned int io_u_lat_u[FIO_IO_U_LAT_U_NR];
366 unsigned int io_u_lat_m[FIO_IO_U_LAT_M_NR];
367 unsigned long total_io_u[2];
368 unsigned long short_io_u[2];
370 unsigned long long io_bytes[2];
371 unsigned long runtime[2];
372 unsigned long total_run_time;
380 struct thread_options {
388 enum td_ddir td_ddir;
389 unsigned int ddir_nr;
390 unsigned int iodepth;
391 unsigned int iodepth_low;
392 unsigned int iodepth_batch;
394 unsigned long long size;
395 unsigned int fill_device;
396 unsigned long long file_size_low;
397 unsigned long long file_size_high;
398 unsigned long long start_offset;
401 unsigned int min_bs[2];
402 unsigned int max_bs[2];
403 struct bssplit *bssplit;
404 unsigned int bssplit_nr;
406 unsigned int nr_files;
407 unsigned int open_files;
409 unsigned int odirect;
410 unsigned int invalidate_cache;
411 unsigned int create_serialize;
412 unsigned int create_fsync;
413 unsigned int end_fsync;
414 unsigned int sync_io;
416 unsigned int do_verify;
417 unsigned int verifysort;
418 unsigned int verify_interval;
419 unsigned int verify_offset;
420 unsigned int verify_pattern;
421 unsigned int verify_pattern_bytes;
422 unsigned int verify_fatal;
423 unsigned int use_thread;
425 unsigned int do_disk_util;
426 unsigned int override_sync;
427 unsigned int rand_repeatable;
428 unsigned int write_lat_log;
429 unsigned int write_bw_log;
430 unsigned int norandommap;
431 unsigned int bs_unaligned;
432 unsigned int fsync_on_close;
434 unsigned int hugepage_size;
435 unsigned int rw_min_bs;
436 unsigned int thinktime;
437 unsigned int thinktime_spin;
438 unsigned int thinktime_blocks;
439 unsigned int fsync_blocks;
440 unsigned int start_delay;
441 unsigned long long timeout;
442 unsigned int overwrite;
443 unsigned int bw_avg_time;
445 unsigned long long zone_size;
446 unsigned long long zone_skip;
447 enum fio_memtype mem_type;
449 unsigned int stonewall;
450 unsigned int new_group;
451 unsigned int numjobs;
452 os_cpu_mask_t cpumask;
453 unsigned int cpumask_set;
455 unsigned int rwmixcycle;
456 unsigned int rwmix[2];
458 unsigned int file_service_type;
459 unsigned int group_reporting;
460 unsigned int fadvise_hint;
461 unsigned int zero_buffers;
462 unsigned int time_based;
464 char *read_iolog_file;
465 char *write_iolog_file;
468 * Pre-run and post-run shell
474 unsigned int ratemin;
475 unsigned int ratecycle;
476 unsigned int rate_iops;
477 unsigned int rate_iops_min;
482 * CPU "io" cycle burner
484 unsigned int cpuload;
485 unsigned int cpucycle;
488 #define FIO_VERROR_SIZE 128
491 * This describes a single thread/process executing a fio job.
494 struct thread_options o;
495 char verror[FIO_VERROR_SIZE];
499 struct thread_stat ts;
500 struct fio_file **files;
501 unsigned int files_index;
502 unsigned int nr_open_files;
503 unsigned int nr_done_files;
504 unsigned int nr_normal_files;
506 unsigned int next_file;
507 os_random_state_t next_file_state;
513 size_t orig_buffer_size;
514 volatile int terminate;
515 volatile int runstate;
517 unsigned int ioprio_set;
518 unsigned int last_was_sync;
528 os_random_state_t bsrange_state;
529 os_random_state_t verify_state;
534 * IO engine hooks, contains everything needed to submit an io_u
535 * to any of the available IO engines.
537 struct ioengine_ops *io_ops;
540 * Current IO depth and list of free and busy io_u's.
542 unsigned int cur_depth;
543 struct list_head io_u_freelist;
544 struct list_head io_u_busylist;
545 struct list_head io_u_requeues;
546 unsigned int io_u_queued;
551 unsigned long rate_usec_cycle;
552 long rate_pending_usleep;
553 unsigned long rate_bytes;
554 unsigned long rate_blocks;
555 struct timeval lastrate;
557 unsigned long long total_io_size;
559 unsigned long io_issues[2];
560 unsigned long long io_blocks[2];
561 unsigned long long io_bytes[2];
562 unsigned long long io_skip_bytes;
563 unsigned long long this_io_bytes[2];
564 unsigned long long zone_bytes;
565 struct fio_mutex *mutex;
568 * State for random io, a bitmap of blocks done vs not done
570 os_random_state_t random_state;
572 struct timeval start; /* start of this loop */
573 struct timeval epoch; /* time job was started */
574 struct timeval rw_end[2];
575 struct timeval last_issue;
576 unsigned int rw_end_set[2];
579 * read/write mixed workload state
581 os_random_state_t rwmix_state;
582 unsigned long long rwmix_bytes;
583 struct timeval rwmix_switch;
584 enum fio_ddir rwmix_ddir;
585 unsigned int ddir_nr;
588 * IO history logs for verification. We use a tree for sorting,
589 * if we are overwriting. Otherwise just use a fifo.
591 struct rb_root io_hist_tree;
592 struct list_head io_hist_list;
597 struct list_head io_log_list;
602 struct timeval timeout_end;
603 struct itimerval timer;
606 * for fileservice, how often to switch to a new file
608 unsigned int file_service_nr;
609 unsigned int file_service_left;
610 struct fio_file *file_service_file;
613 * For generating file sizes
615 os_random_state_t file_size_state;
619 * roundrobin available files, or choose one at random.
622 FIO_FSERVICE_RANDOM = 1,
627 * when should interactive ETA output be generated
636 * 30 second per-io_u timeout, with 5 second intervals to avoid resetting
637 * the timer on each queue operation.
639 #define IO_U_TIMEOUT_INC 5
640 #define IO_U_TIMEOUT 30
642 #define __td_verror(td, err, msg, func) \
648 snprintf(td->verror, sizeof(td->verror) - 1, "file:%s:%d, func=%s, error=%s", __FILE__, __LINE__, (func), (msg)); \
652 #define td_verror(td, err, func) \
653 __td_verror((td), (err), strerror((err)), (func))
654 #define td_vmsg(td, err, msg, func) \
655 __td_verror((td), (err), (msg), (func))
657 extern int exitall_on_terminate;
658 extern int thread_number;
659 extern int nr_process, nr_thread;
662 extern int terse_output;
663 extern int temp_stall_ts;
664 extern unsigned long long mlock_size;
665 extern unsigned long page_mask, page_size;
666 extern int read_only;
667 extern int eta_print;
668 extern char *job_section;
670 extern struct thread_data *threads;
672 #define td_read(td) ((td)->o.td_ddir & TD_DDIR_READ)
673 #define td_write(td) ((td)->o.td_ddir & TD_DDIR_WRITE)
674 #define td_rw(td) (((td)->o.td_ddir & TD_DDIR_RW) == TD_DDIR_RW)
675 #define td_random(td) ((td)->o.td_ddir & TD_DDIR_RAND)
677 static inline void fio_ro_check(struct thread_data *td, struct io_u *io_u)
679 assert(!(io_u->ddir == DDIR_WRITE && !td_write(td)));
682 #define BLOCKS_PER_MAP (8 * sizeof(long))
683 #define TO_MAP_BLOCK(td, f, b) (b)
684 #define RAND_MAP_IDX(td, f, b) (TO_MAP_BLOCK(td, f, b) / BLOCKS_PER_MAP)
685 #define RAND_MAP_BIT(td, f, b) (TO_MAP_BLOCK(td, f, b) & (BLOCKS_PER_MAP - 1))
687 #define MAX_JOBS (1024)
689 static inline int should_fsync(struct thread_data *td)
691 if (td->last_was_sync)
695 if (td_write(td) || td_rw(td) || td->o.override_sync)
702 * Disk utils as read in /sys/block/<dev>/stat
704 struct disk_util_stat {
707 unsigned long long sectors[2];
710 unsigned time_in_queue;
714 * Per-device disk util management
717 struct list_head list;
724 struct disk_util_stat dus;
725 struct disk_util_stat last_dus;
731 #define DISK_UTIL_MSEC (250)
742 extern int __must_check read_iolog_get(struct thread_data *, struct io_u *);
743 extern void log_io_u(struct thread_data *, struct io_u *);
744 extern void log_file(struct thread_data *, struct fio_file *, enum file_log_act);
745 extern int __must_check init_iolog(struct thread_data *td);
746 extern void log_io_piece(struct thread_data *, struct io_u *);
747 extern void prune_io_piece_log(struct thread_data *);
748 extern void write_iolog_close(struct thread_data *);
753 extern void add_clat_sample(struct thread_data *, enum fio_ddir, unsigned long);
754 extern void add_slat_sample(struct thread_data *, enum fio_ddir, unsigned long);
755 extern void add_bw_sample(struct thread_data *, enum fio_ddir, struct timeval *);
756 extern void show_run_stats(void);
757 extern void init_disk_util(struct thread_data *);
758 extern void update_rusage_stat(struct thread_data *);
759 extern void update_io_ticks(void);
760 extern void disk_util_timer_arm(void);
761 extern void setup_log(struct io_log **);
762 extern void finish_log(struct thread_data *, struct io_log *, const char *);
763 extern void __finish_log(struct io_log *, const char *);
764 extern struct io_log *agg_io_log[2];
765 extern int write_bw_log;
766 extern void add_agg_sample(unsigned long, enum fio_ddir);
771 extern unsigned long long utime_since(struct timeval *, struct timeval *);
772 extern unsigned long long utime_since_now(struct timeval *);
773 extern unsigned long mtime_since(struct timeval *, struct timeval *);
774 extern unsigned long mtime_since_now(struct timeval *);
775 extern unsigned long time_since_now(struct timeval *);
776 extern unsigned long mtime_since_genesis(void);
777 extern void __usec_sleep(unsigned int);
778 extern void usec_sleep(struct thread_data *, unsigned long);
779 extern void rate_throttle(struct thread_data *, unsigned long, unsigned int);
780 extern void fill_start_time(struct timeval *);
781 extern void fio_gettime(struct timeval *, void *);
782 extern void set_genesis_time(void);
785 * Init/option functions
787 extern int __must_check parse_options(int, char **);
788 extern int fio_option_parse(struct thread_data *, const char *);
789 extern int fio_cmd_option_parse(struct thread_data *, const char *, char *);
790 extern void fio_fill_default_options(struct thread_data *);
791 extern int fio_show_option_help(const char *);
792 extern void fio_options_dup_and_init(struct option *);
793 extern void options_mem_dupe(struct thread_data *);
794 extern void options_mem_free(struct thread_data *);
795 #define FIO_GETOPT_JOB 0x89988998
796 #define FIO_NR_OPTIONS 128
799 * File setup/shutdown
801 extern void close_files(struct thread_data *);
802 extern void close_and_free_files(struct thread_data *);
803 extern int __must_check setup_files(struct thread_data *);
804 extern int __must_check open_files(struct thread_data *);
805 extern int __must_check file_invalidate_cache(struct thread_data *, struct fio_file *);
806 extern int __must_check generic_open_file(struct thread_data *, struct fio_file *);
807 extern int __must_check generic_close_file(struct thread_data *, struct fio_file *);
808 extern int add_file(struct thread_data *, const char *);
809 extern void get_file(struct fio_file *);
810 extern int __must_check put_file(struct thread_data *, struct fio_file *);
811 extern void lock_file(struct thread_data *, struct fio_file *);
812 extern void unlock_file(struct fio_file *);
813 extern int add_dir_files(struct thread_data *, const char *);
814 extern int init_random_map(struct thread_data *);
815 extern void dup_files(struct thread_data *, struct thread_data *);
816 extern int get_fileno(struct thread_data *, const char *);
817 extern void free_release_files(struct thread_data *);
822 extern void print_thread_status(void);
823 extern void print_status_init(int);
828 #ifdef FIO_HAVE_DISK_UTIL
829 extern void show_disk_util(void);
830 extern void disk_util_timer_arm(void);
831 extern void init_disk_util(struct thread_data *);
832 extern void update_io_ticks(void);
834 #define show_disk_util()
835 #define disk_util_timer_arm()
836 #define init_disk_util(td)
837 #define update_io_ticks()
841 * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it
842 * will never back again. It may cycle between running/verififying/fsyncing.
843 * Once the thread reaches TD_EXITED, it is just waiting for the core to
860 extern void populate_verify_io_u(struct thread_data *, struct io_u *);
861 extern int __must_check get_next_verify(struct thread_data *td, struct io_u *);
862 extern int __must_check verify_io_u(struct thread_data *, struct io_u *);
867 extern int __must_check fio_pin_memory(void);
868 extern void fio_unpin_memory(void);
869 extern int __must_check allocate_io_mem(struct thread_data *);
870 extern void free_io_mem(struct thread_data *);
875 #define queue_full(td) list_empty(&(td)->io_u_freelist)
876 extern struct io_u *__get_io_u(struct thread_data *);
877 extern struct io_u *get_io_u(struct thread_data *);
878 extern void put_io_u(struct thread_data *, struct io_u *);
879 extern void requeue_io_u(struct thread_data *, struct io_u **);
880 extern long __must_check io_u_sync_complete(struct thread_data *, struct io_u *);
881 extern long __must_check io_u_queued_complete(struct thread_data *, int);
882 extern void io_u_queued(struct thread_data *, struct io_u *);
883 extern void io_u_log_error(struct thread_data *, struct io_u *);
884 extern void io_u_init_timeout(void);
885 extern void io_u_set_timeout(struct thread_data *);
886 extern void io_u_mark_depth(struct thread_data *, struct io_u *);
889 * io engine entry points
891 extern int __must_check td_io_init(struct thread_data *);
892 extern int __must_check td_io_prep(struct thread_data *, struct io_u *);
893 extern int __must_check td_io_queue(struct thread_data *, struct io_u *);
894 extern int __must_check td_io_sync(struct thread_data *, struct fio_file *);
895 extern int __must_check td_io_getevents(struct thread_data *, unsigned int, unsigned int, struct timespec *);
896 extern int __must_check td_io_commit(struct thread_data *);
897 extern int __must_check td_io_open_file(struct thread_data *, struct fio_file *);
898 extern int td_io_close_file(struct thread_data *, struct fio_file *);
903 #ifdef FIO_HAVE_BLKTRACE
904 extern int is_blktrace(const char *);
905 extern int load_blktrace(struct thread_data *, const char *);
908 struct ioengine_ops {
909 struct list_head list;
913 int (*setup)(struct thread_data *);
914 int (*init)(struct thread_data *);
915 int (*prep)(struct thread_data *, struct io_u *);
916 int (*queue)(struct thread_data *, struct io_u *);
917 int (*commit)(struct thread_data *);
918 int (*getevents)(struct thread_data *, unsigned int, unsigned int, struct timespec *);
919 struct io_u *(*event)(struct thread_data *, int);
920 int (*cancel)(struct thread_data *, struct io_u *);
921 void (*cleanup)(struct thread_data *);
922 int (*open_file)(struct thread_data *, struct fio_file *);
923 int (*close_file)(struct thread_data *, struct fio_file *);
928 #define FIO_IOOPS_VERSION 9
930 extern struct ioengine_ops *load_ioengine(struct thread_data *, const char *);
931 extern void register_ioengine(struct ioengine_ops *);
932 extern void unregister_ioengine(struct ioengine_ops *);
933 extern void close_ioengine(struct thread_data *);
936 * Mark unused variables passed to ops functions as unused, to silence gcc
938 #define fio_unused __attribute((__unused__))
939 #define fio_init __attribute__((constructor))
940 #define fio_exit __attribute__((destructor))
942 #define for_each_td(td, i) \
943 for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++)
944 #define for_each_file(td, f, i) \
945 for ((i) = 0, (f) = (td)->files[0]; (i) < (td)->o.nr_files; (i)++, (f)++)
947 #define fio_assert(td, cond) do { \
950 fprintf(stderr, "file:%s:%d, assert %s failed\n", __FILE__, __LINE__, #cond); \
951 (td)->runstate = TD_EXITED; \
952 (td)->error = EFAULT; \
957 static inline void clear_error(struct thread_data *td)
960 td->verror[0] = '\0';
964 static inline void dprint_io_u(struct io_u *io_u, const char *p)
966 struct fio_file *f = io_u->file;
968 dprint(FD_IO, "%s: io_u %p: off=%llu/len=%lu/ddir=%d", p, io_u,
969 io_u->offset, io_u->buflen, io_u->ddir);
970 if (fio_debug & (1 << FD_IO)) {
972 log_info("/%s", f->file_name);
978 #define dprint_io_u(io_u, p)