8 #include <sys/resource.h>
18 #include "compiler/compiler.h"
22 #include "arch/arch.h"
32 #ifdef FIO_HAVE_SOLARISAIO
33 #include <sys/asynch.h>
44 TD_DDIR_READ = 1 << 0,
45 TD_DDIR_WRITE = 1 << 1,
46 TD_DDIR_RAND = 1 << 2,
47 TD_DDIR_RW = TD_DDIR_READ | TD_DDIR_WRITE,
48 TD_DDIR_RANDREAD = TD_DDIR_READ | TD_DDIR_RAND,
49 TD_DDIR_RANDWRITE = TD_DDIR_WRITE | TD_DDIR_RAND,
50 TD_DDIR_RANDRW = TD_DDIR_RW | TD_DDIR_RAND,
60 * Use for maintaining statistics
63 unsigned long max_val;
64 unsigned long min_val;
65 unsigned long samples;
72 * A single data sample
82 * Dynamically growing data sample log
85 unsigned long nr_samples;
86 unsigned long max_samples;
87 struct io_sample *log;
91 * When logging io actions, this matches a single sent io_u
95 struct rb_node rb_node;
96 struct flist_head list;
100 struct fio_file *file;
102 unsigned long long offset;
107 unsigned int file_action;
112 IO_U_F_FREE = 1 << 0,
113 IO_U_F_FLIGHT = 1 << 1,
123 #ifdef FIO_HAVE_LIBAIO
126 #ifdef FIO_HAVE_POSIXAIO
130 struct sg_io_hdr hdr;
132 #ifdef FIO_HAVE_GUASI
135 #ifdef FIO_HAVE_SOLARISAIO
136 aio_result_t resultp;
139 struct timeval start_time;
140 struct timeval issue_time;
143 * Allocated/set buffer and length
146 unsigned long buflen;
147 unsigned long long offset;
148 unsigned long long endpos;
151 * IO engine state, may be different from above when we get
152 * partial transfers / residual data counts
155 unsigned long xfer_buflen;
163 * io engine private data
173 struct fio_file *file;
175 struct flist_head list;
178 * Callback for io completion
180 int (*end_io)(struct thread_data *, struct io_u *);
184 * io_ops->queue() return values
187 FIO_Q_COMPLETED = 0, /* completed sync */
188 FIO_Q_QUEUED = 1, /* queued, will complete async */
189 FIO_Q_BUSY = 2, /* no more room, call ->commit() */
192 #define FIO_HDR_MAGIC 0xf00baaef
195 VERIFY_NONE = 0, /* no verification */
196 VERIFY_MD5, /* md5 sum data blocks */
197 VERIFY_CRC64, /* crc64 sum data blocks */
198 VERIFY_CRC32, /* crc32 sum data blocks */
199 VERIFY_CRC32C, /* crc32c sum data blocks */
200 VERIFY_CRC32C_INTEL, /* crc32c sum data blocks with hw */
201 VERIFY_CRC16, /* crc16 sum data blocks */
202 VERIFY_CRC7, /* crc7 sum data blocks */
203 VERIFY_SHA256, /* sha256 sum data blocks */
204 VERIFY_SHA512, /* sha512 sum data blocks */
205 VERIFY_META, /* block_num, timestamp etc. */
206 VERIFY_NULL, /* pretend to verify */
210 * A header structure associated with each checksummed data block. It is
211 * followed by a checksum specific header that contains the verification
214 struct verify_header {
215 unsigned int fio_magic;
217 unsigned int verify_type;
221 uint32_t md5_digest[16];
243 unsigned char thread;
244 unsigned short numberio;
245 unsigned long time_sec;
246 unsigned long time_usec;
249 struct group_run_stats {
250 unsigned long long max_run[2], min_run[2];
251 unsigned long long max_bw[2], min_bw[2];
252 unsigned long long io_kb[2];
253 unsigned long long agg[2];
257 * What type of allocation to use for io buffers
260 MEM_MALLOC = 0, /* ordinary malloc */
261 MEM_SHM, /* use shared memory segments */
262 MEM_SHMHUGE, /* use shared memory segments with huge pages */
263 MEM_MMAP, /* use anonynomous mmap */
264 MEM_MMAPHUGE, /* memory mapped huge file */
268 * The type of object we are working on
271 FIO_TYPE_FILE = 1, /* plain file */
272 FIO_TYPE_BD, /* block device */
273 FIO_TYPE_CHAR, /* character device */
274 FIO_TYPE_PIPE, /* pipe */
277 enum fio_ioengine_flags {
278 FIO_SYNCIO = 1 << 0, /* io engine has synchronous ->queue */
279 FIO_RAWIO = 1 << 1, /* some sort of direct/raw io */
280 FIO_DISKLESSIO = 1 << 2, /* no disk involved */
281 FIO_NOEXTEND = 1 << 3, /* engine can't extend file */
282 FIO_NODISKUTIL = 1 << 4, /* diskutil can't handle filename */
283 FIO_UNIDIR = 1 << 5, /* engine is uni-directional */
284 FIO_NOIO = 1 << 6, /* thread does only pseudo IO */
285 FIO_SIGQUIT = 1 << 7, /* needs SIGQUIT to exit */
288 enum fio_file_flags {
289 FIO_FILE_OPEN = 1 << 0, /* file is open */
290 FIO_FILE_CLOSING = 1 << 1, /* file being closed */
291 FIO_FILE_EXTEND = 1 << 2, /* needs extend */
292 FIO_FILE_DONE = 1 << 3, /* io completed to this file */
293 FIO_SIZE_KNOWN = 1 << 4, /* size has been set */
294 FIO_FILE_HASHED = 1 << 5, /* file is on hash */
298 * Each thread_data structure has a number of files associated with it,
299 * this structure holds state information for a single file.
302 struct flist_head hash_list;
303 enum fio_filetype filetype;
306 * A file may not be a file descriptor, let the io engine decide
309 unsigned long file_data;
314 * filename and possible memory mapping
318 unsigned int major, minor;
321 * size of the file, offset into file, and io size from that offset
323 unsigned long long real_file_size;
324 unsigned long long file_offset;
325 unsigned long long io_size;
327 unsigned long long last_pos;
330 * if io is protected by a semaphore, this is set
332 struct fio_mutex *lock;
334 unsigned int lock_batch;
335 enum fio_ddir lock_ddir;
338 * block map for random io
340 unsigned int *file_map;
341 unsigned int num_maps;
342 unsigned int last_free_lookup;
345 enum fio_file_flags flags;
349 * How many depth levels to log
351 #define FIO_IO_U_MAP_NR 8
352 #define FIO_IO_U_LAT_U_NR 10
353 #define FIO_IO_U_LAT_M_NR 12
364 struct io_log *slat_log;
365 struct io_log *clat_log;
366 struct io_log *bw_log;
369 * bandwidth and latency stats
371 struct io_stat clat_stat[2]; /* completion latency */
372 struct io_stat slat_stat[2]; /* submission latency */
373 struct io_stat bw_stat[2]; /* bandwidth stats */
375 unsigned long long stat_io_bytes[2];
376 struct timeval stat_sample_time[2];
379 * fio system usage accounting
381 struct rusage ru_start;
382 struct rusage ru_end;
383 unsigned long usr_time;
384 unsigned long sys_time;
386 unsigned long minf, majf;
389 * IO depth and latency stats
391 unsigned int io_u_map[FIO_IO_U_MAP_NR];
392 unsigned int io_u_submit[FIO_IO_U_MAP_NR];
393 unsigned int io_u_complete[FIO_IO_U_MAP_NR];
394 unsigned int io_u_lat_u[FIO_IO_U_LAT_U_NR];
395 unsigned int io_u_lat_m[FIO_IO_U_LAT_M_NR];
396 unsigned long total_io_u[2];
397 unsigned long short_io_u[2];
398 unsigned long total_submit;
399 unsigned long total_complete;
401 unsigned long long io_bytes[2];
402 unsigned long runtime[2];
403 unsigned long total_run_time;
411 struct thread_options {
419 enum td_ddir td_ddir;
420 unsigned int ddir_nr;
421 unsigned int iodepth;
422 unsigned int iodepth_low;
423 unsigned int iodepth_batch;
424 unsigned int iodepth_batch_complete;
426 unsigned long long size;
427 unsigned int fill_device;
428 unsigned long long file_size_low;
429 unsigned long long file_size_high;
430 unsigned long long start_offset;
434 unsigned int min_bs[2];
435 unsigned int max_bs[2];
436 struct bssplit *bssplit[2];
437 unsigned int bssplit_nr[2];
439 unsigned int nr_files;
440 unsigned int open_files;
441 enum file_lock_mode file_lock_mode;
442 unsigned int lockfile_batch;
444 unsigned int odirect;
445 unsigned int invalidate_cache;
446 unsigned int create_serialize;
447 unsigned int create_fsync;
448 unsigned int create_on_open;
449 unsigned int end_fsync;
450 unsigned int sync_io;
452 unsigned int do_verify;
453 unsigned int verifysort;
454 unsigned int verify_interval;
455 unsigned int verify_offset;
456 unsigned int verify_pattern;
457 unsigned int verify_pattern_bytes;
458 unsigned int verify_fatal;
459 unsigned int use_thread;
461 unsigned int do_disk_util;
462 unsigned int override_sync;
463 unsigned int rand_repeatable;
464 unsigned int write_lat_log;
465 unsigned int write_bw_log;
466 unsigned int norandommap;
467 unsigned int softrandommap;
468 unsigned int bs_unaligned;
469 unsigned int fsync_on_close;
471 unsigned int hugepage_size;
472 unsigned int rw_min_bs;
473 unsigned int thinktime;
474 unsigned int thinktime_spin;
475 unsigned int thinktime_blocks;
476 unsigned int fsync_blocks;
477 unsigned int start_delay;
478 unsigned long long timeout;
479 unsigned long long ramp_time;
480 unsigned int overwrite;
481 unsigned int bw_avg_time;
483 unsigned long long zone_size;
484 unsigned long long zone_skip;
485 enum fio_memtype mem_type;
487 unsigned int stonewall;
488 unsigned int new_group;
489 unsigned int numjobs;
490 os_cpu_mask_t cpumask;
491 unsigned int cpumask_set;
493 unsigned int rwmixcycle;
494 unsigned int rwmix[2];
496 unsigned int file_service_type;
497 unsigned int group_reporting;
498 unsigned int fadvise_hint;
499 unsigned int zero_buffers;
500 unsigned int refill_buffers;
501 unsigned int time_based;
502 unsigned int disable_clat;
503 unsigned int disable_slat;
504 unsigned int disable_bw;
505 unsigned int gtod_reduce;
506 unsigned int gtod_cpu;
507 unsigned int gtod_offload;
509 char *read_iolog_file;
510 char *write_iolog_file;
515 * Pre-run and post-run shell
521 unsigned int ratemin;
522 unsigned int ratecycle;
523 unsigned int rate_iops;
524 unsigned int rate_iops_min;
529 * CPU "io" cycle burner
531 unsigned int cpuload;
532 unsigned int cpucycle;
535 #define FIO_VERROR_SIZE 128
538 * This describes a single thread/process executing a fio job.
541 struct thread_options o;
542 char verror[FIO_VERROR_SIZE];
546 struct thread_stat ts;
547 struct fio_file **files;
548 unsigned int files_size;
549 unsigned int files_index;
550 unsigned int nr_open_files;
551 unsigned int nr_done_files;
552 unsigned int nr_normal_files;
554 unsigned int next_file;
555 os_random_state_t next_file_state;
561 size_t orig_buffer_size;
562 volatile int terminate;
563 volatile int runstate;
565 unsigned int ioprio_set;
566 unsigned int last_was_sync;
576 unsigned long rand_seeds[6];
578 os_random_state_t bsrange_state;
579 os_random_state_t verify_state;
584 * IO engine hooks, contains everything needed to submit an io_u
585 * to any of the available IO engines.
587 struct ioengine_ops *io_ops;
590 * Current IO depth and list of free and busy io_u's.
592 unsigned int cur_depth;
593 unsigned int io_u_queued;
594 struct flist_head io_u_freelist;
595 struct flist_head io_u_busylist;
596 struct flist_head io_u_requeues;
601 unsigned long rate_usec_cycle;
602 long rate_pending_usleep;
603 unsigned long rate_bytes;
604 unsigned long rate_blocks;
605 struct timeval lastrate;
607 unsigned long long total_io_size;
609 unsigned long io_issues[2];
610 unsigned long long io_blocks[2];
611 unsigned long long io_bytes[2];
612 unsigned long long io_skip_bytes;
613 unsigned long long this_io_bytes[2];
614 unsigned long long zone_bytes;
615 struct fio_mutex *mutex;
618 * State for random io, a bitmap of blocks done vs not done
620 os_random_state_t random_state;
622 struct timeval start; /* start of this loop */
623 struct timeval epoch; /* time job was started */
624 struct timeval rw_end[2];
625 struct timeval last_issue;
626 struct timeval tv_cache;
627 unsigned int tv_cache_nr;
628 unsigned int tv_cache_mask;
629 unsigned int rw_end_set[2];
630 unsigned int ramp_time_over;
633 * read/write mixed workload state
635 os_random_state_t rwmix_state;
636 unsigned long rwmix_issues;
637 enum fio_ddir rwmix_ddir;
638 unsigned int ddir_nr;
641 * IO history logs for verification. We use a tree for sorting,
642 * if we are overwriting. Otherwise just use a fifo.
644 struct rb_root io_hist_tree;
645 struct flist_head io_hist_list;
650 struct flist_head io_log_list;
653 * for fileservice, how often to switch to a new file
655 unsigned int file_service_nr;
656 unsigned int file_service_left;
657 struct fio_file *file_service_file;
660 * For generating file sizes
662 os_random_state_t file_size_state;
666 * roundrobin available files, or choose one at random, or do each one
670 FIO_FSERVICE_RANDOM = 1,
672 FIO_FSERVICE_SEQ = 3,
676 * when should interactive ETA output be generated
684 #define __td_verror(td, err, msg, func) \
690 snprintf(td->verror, sizeof(td->verror) - 1, "file:%s:%d, func=%s, error=%s", __FILE__, __LINE__, (func), (msg)); \
694 #define td_verror(td, err, func) \
695 __td_verror((td), (err), strerror((err)), (func))
696 #define td_vmsg(td, err, msg, func) \
697 __td_verror((td), (err), (msg), (func))
699 extern int exitall_on_terminate;
700 extern int thread_number;
701 extern int nr_process, nr_thread;
704 extern int terse_output;
705 extern int temp_stall_ts;
706 extern unsigned long long mlock_size;
707 extern unsigned long page_mask, page_size;
708 extern int read_only;
709 extern int eta_print;
710 extern unsigned long done_secs;
711 extern char *job_section;
712 extern int fio_gtod_offload;
713 extern int fio_gtod_cpu;
715 extern struct thread_data *threads;
717 #define td_read(td) ((td)->o.td_ddir & TD_DDIR_READ)
718 #define td_write(td) ((td)->o.td_ddir & TD_DDIR_WRITE)
719 #define td_rw(td) (((td)->o.td_ddir & TD_DDIR_RW) == TD_DDIR_RW)
720 #define td_random(td) ((td)->o.td_ddir & TD_DDIR_RAND)
721 #define file_randommap(td, f) (!(td)->o.norandommap && (f)->file_map)
723 static inline void fio_ro_check(struct thread_data *td, struct io_u *io_u)
725 assert(!(io_u->ddir == DDIR_WRITE && !td_write(td)));
728 #define BLOCKS_PER_MAP (8 * sizeof(int))
729 #define TO_MAP_BLOCK(f, b) (b)
730 #define RAND_MAP_IDX(f, b) (TO_MAP_BLOCK(f, b) / BLOCKS_PER_MAP)
731 #define RAND_MAP_BIT(f, b) (TO_MAP_BLOCK(f, b) & (BLOCKS_PER_MAP - 1))
733 #define MAX_JOBS (1024)
735 static inline int should_fsync(struct thread_data *td)
737 if (td->last_was_sync)
741 if (td_write(td) || td_rw(td) || td->o.override_sync)
748 * Disk utils as read in /sys/block/<dev>/stat
750 struct disk_util_stat {
753 unsigned long long sectors[2];
756 unsigned time_in_queue;
760 * Per-device disk util management
763 struct flist_head list;
764 /* If this disk is a slave, hook it into the master's
765 * list using this head.
767 struct flist_head slavelist;
774 struct disk_util_stat dus;
775 struct disk_util_stat last_dus;
777 /* For software raids, this entry maintains pointers to the
778 * entries for the slave devices. The disk_util entries for
779 * the slaves devices should primarily be maintained through
780 * the disk_list list, i.e. for memory allocation and
781 * de-allocation, etc. Whereas this list should be used only
782 * for aggregating a software RAID's disk util figures.
784 struct flist_head slaves;
790 #define DISK_UTIL_MSEC (250)
802 extern int __must_check read_iolog_get(struct thread_data *, struct io_u *);
803 extern void log_io_u(struct thread_data *, struct io_u *);
804 extern void log_file(struct thread_data *, struct fio_file *, enum file_log_act);
805 extern int __must_check init_iolog(struct thread_data *td);
806 extern void log_io_piece(struct thread_data *, struct io_u *);
807 extern void queue_io_piece(struct thread_data *, struct io_piece *);
808 extern void prune_io_piece_log(struct thread_data *);
809 extern void write_iolog_close(struct thread_data *);
814 extern void add_clat_sample(struct thread_data *, enum fio_ddir, unsigned long,
816 extern void add_slat_sample(struct thread_data *, enum fio_ddir, unsigned long,
818 extern void add_bw_sample(struct thread_data *, enum fio_ddir, unsigned int,
820 extern void show_run_stats(void);
821 extern void init_disk_util(struct thread_data *);
822 extern void update_rusage_stat(struct thread_data *);
823 extern void update_io_ticks(void);
824 extern void setup_log(struct io_log **);
825 extern void finish_log(struct thread_data *, struct io_log *, const char *);
826 extern void finish_log_named(struct thread_data *, struct io_log *, const char *, const char *);
827 extern void __finish_log(struct io_log *, const char *);
828 extern struct io_log *agg_io_log[2];
829 extern int write_bw_log;
830 extern void add_agg_sample(unsigned long, enum fio_ddir, unsigned int);
835 extern unsigned long long utime_since(struct timeval *, struct timeval *);
836 extern unsigned long long utime_since_now(struct timeval *);
837 extern unsigned long mtime_since(struct timeval *, struct timeval *);
838 extern unsigned long mtime_since_now(struct timeval *);
839 extern unsigned long time_since_now(struct timeval *);
840 extern unsigned long mtime_since_genesis(void);
841 extern void usec_spin(unsigned int);
842 extern void usec_sleep(struct thread_data *, unsigned long);
843 extern void rate_throttle(struct thread_data *, unsigned long, unsigned int);
844 extern void fill_start_time(struct timeval *);
845 extern void fio_gettime(struct timeval *, void *);
846 extern void fio_gtod_init(void);
847 extern void fio_gtod_update(void);
848 extern void set_genesis_time(void);
849 extern int ramp_time_over(struct thread_data *);
850 extern int in_ramp_time(struct thread_data *);
853 * Init/option functions
855 extern int __must_check parse_options(int, char **);
856 extern int fio_options_parse(struct thread_data *, char **, int);
857 extern int fio_cmd_option_parse(struct thread_data *, const char *, char *);
858 extern void fio_fill_default_options(struct thread_data *);
859 extern int fio_show_option_help(const char *);
860 extern void fio_options_dup_and_init(struct option *);
861 extern void options_mem_dupe(struct thread_data *);
862 extern void options_mem_free(struct thread_data *);
863 extern void td_fill_rand_seeds(struct thread_data *);
864 #define FIO_GETOPT_JOB 0x89988998
865 #define FIO_NR_OPTIONS 128
868 * File setup/shutdown
870 extern void close_files(struct thread_data *);
871 extern void close_and_free_files(struct thread_data *);
872 extern int __must_check setup_files(struct thread_data *);
873 extern int __must_check file_invalidate_cache(struct thread_data *, struct fio_file *);
874 extern int __must_check generic_open_file(struct thread_data *, struct fio_file *);
875 extern int __must_check generic_close_file(struct thread_data *, struct fio_file *);
876 extern int __must_check generic_get_file_size(struct thread_data *, struct fio_file *);
877 extern int add_file(struct thread_data *, const char *);
878 extern void get_file(struct fio_file *);
879 extern int __must_check put_file(struct thread_data *, struct fio_file *);
880 extern void lock_file(struct thread_data *, struct fio_file *, enum fio_ddir);
881 extern void unlock_file(struct thread_data *, struct fio_file *);
882 extern void unlock_file_all(struct thread_data *, struct fio_file *);
883 extern int add_dir_files(struct thread_data *, const char *);
884 extern int init_random_map(struct thread_data *);
885 extern void dup_files(struct thread_data *, struct thread_data *);
886 extern int get_fileno(struct thread_data *, const char *);
887 extern void free_release_files(struct thread_data *);
892 extern void print_thread_status(void);
893 extern void print_status_init(int);
898 #ifdef FIO_HAVE_DISK_UTIL
899 extern void show_disk_util(void);
900 extern void init_disk_util(struct thread_data *);
901 extern void update_io_ticks(void);
903 #define show_disk_util()
904 #define init_disk_util(td)
905 #define update_io_ticks()
909 * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it
910 * will never back again. It may cycle between running/verififying/fsyncing.
911 * Once the thread reaches TD_EXITED, it is just waiting for the core to
926 extern void td_set_runstate(struct thread_data *, int);
931 extern void populate_verify_io_u(struct thread_data *, struct io_u *);
932 extern int __must_check get_next_verify(struct thread_data *td, struct io_u *);
933 extern int __must_check verify_io_u(struct thread_data *, struct io_u *);
938 extern int __must_check fio_pin_memory(void);
939 extern void fio_unpin_memory(void);
940 extern int __must_check allocate_io_mem(struct thread_data *);
941 extern void free_io_mem(struct thread_data *);
946 #define queue_full(td) flist_empty(&(td)->io_u_freelist)
947 extern struct io_u *__get_io_u(struct thread_data *);
948 extern struct io_u *get_io_u(struct thread_data *);
949 extern void put_io_u(struct thread_data *, struct io_u *);
950 extern void requeue_io_u(struct thread_data *, struct io_u **);
951 extern long __must_check io_u_sync_complete(struct thread_data *, struct io_u *);
952 extern long __must_check io_u_queued_complete(struct thread_data *, int);
953 extern void io_u_queued(struct thread_data *, struct io_u *);
954 extern void io_u_log_error(struct thread_data *, struct io_u *);
955 extern void io_u_mark_depth(struct thread_data *, unsigned int);
956 extern void io_u_fill_buffer(struct thread_data *td, struct io_u *, unsigned int);
957 void io_u_mark_complete(struct thread_data *, unsigned int);
958 void io_u_mark_submit(struct thread_data *, unsigned int);
961 * Reset stats after ramp time completes
963 extern void reset_all_stats(struct thread_data *);
966 * io engine entry points
968 extern int __must_check td_io_init(struct thread_data *);
969 extern int __must_check td_io_prep(struct thread_data *, struct io_u *);
970 extern int __must_check td_io_queue(struct thread_data *, struct io_u *);
971 extern int __must_check td_io_sync(struct thread_data *, struct fio_file *);
972 extern int __must_check td_io_getevents(struct thread_data *, unsigned int, unsigned int, struct timespec *);
973 extern int __must_check td_io_commit(struct thread_data *);
974 extern int __must_check td_io_open_file(struct thread_data *, struct fio_file *);
975 extern int td_io_close_file(struct thread_data *, struct fio_file *);
976 extern int __must_check td_io_get_file_size(struct thread_data *, struct fio_file *);
981 #ifdef FIO_HAVE_BLKTRACE
982 extern int is_blktrace(const char *);
983 extern int load_blktrace(struct thread_data *, const char *);
986 struct ioengine_ops {
987 struct flist_head list;
991 int (*setup)(struct thread_data *);
992 int (*init)(struct thread_data *);
993 int (*prep)(struct thread_data *, struct io_u *);
994 int (*queue)(struct thread_data *, struct io_u *);
995 int (*commit)(struct thread_data *);
996 int (*getevents)(struct thread_data *, unsigned int, unsigned int, struct timespec *);
997 struct io_u *(*event)(struct thread_data *, int);
998 int (*cancel)(struct thread_data *, struct io_u *);
999 void (*cleanup)(struct thread_data *);
1000 int (*open_file)(struct thread_data *, struct fio_file *);
1001 int (*close_file)(struct thread_data *, struct fio_file *);
1002 int (*get_file_size)(struct thread_data *, struct fio_file *);
1007 #define FIO_IOOPS_VERSION 10
1009 extern struct ioengine_ops *load_ioengine(struct thread_data *, const char *);
1010 extern void register_ioengine(struct ioengine_ops *);
1011 extern void unregister_ioengine(struct ioengine_ops *);
1012 extern void close_ioengine(struct thread_data *);
1015 * Mark unused variables passed to ops functions as unused, to silence gcc
1017 #define fio_unused __attribute((__unused__))
1018 #define fio_init __attribute__((constructor))
1019 #define fio_exit __attribute__((destructor))
1021 #define for_each_td(td, i) \
1022 for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++)
1023 #define for_each_file(td, f, i) \
1024 if ((td)->files_index) \
1025 for ((i) = 0, (f) = (td)->files[0]; \
1026 (i) < (td)->o.nr_files && ((f) = (td)->files[i]) != NULL; \
1029 #define fio_assert(td, cond) do { \
1031 int *__foo = NULL; \
1032 fprintf(stderr, "file:%s:%d, assert %s failed\n", __FILE__, __LINE__, #cond); \
1033 (td)->runstate = TD_EXITED; \
1034 (td)->error = EFAULT; \
1039 static inline void fio_file_reset(struct fio_file *f)
1041 f->last_free_lookup = 0;
1042 f->last_pos = f->file_offset;
1044 memset(f->file_map, 0, f->num_maps * sizeof(int));
1047 static inline void clear_error(struct thread_data *td)
1050 td->verror[0] = '\0';
1053 #ifdef FIO_INC_DEBUG
1054 static inline void dprint_io_u(struct io_u *io_u, const char *p)
1056 struct fio_file *f = io_u->file;
1058 dprint(FD_IO, "%s: io_u %p: off=%llu/len=%lu/ddir=%d", p, io_u,
1059 (unsigned long long) io_u->offset,
1060 io_u->buflen, io_u->ddir);
1061 if (fio_debug & (1 << FD_IO)) {
1063 log_info("/%s", f->file_name);
1069 #define dprint_io_u(io_u, p)
1072 static inline int fio_fill_issue_time(struct thread_data *td)
1074 if (td->o.read_iolog_file ||
1075 !td->o.disable_clat || !td->o.disable_slat || !td->o.disable_bw)