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
81 * Dynamically growing data sample log
84 unsigned long nr_samples;
85 unsigned long max_samples;
86 struct io_sample *log;
90 * When logging io actions, this matches a single sent io_u
94 struct rb_node rb_node;
95 struct flist_head list;
99 struct fio_file *file;
101 unsigned long long offset;
106 unsigned int file_action;
111 IO_U_F_FREE = 1 << 0,
112 IO_U_F_FLIGHT = 1 << 1,
122 #ifdef FIO_HAVE_LIBAIO
125 #ifdef FIO_HAVE_POSIXAIO
129 struct sg_io_hdr hdr;
131 #ifdef FIO_HAVE_GUASI
134 #ifdef FIO_HAVE_SOLARISAIO
135 aio_result_t resultp;
138 struct timeval start_time;
139 struct timeval issue_time;
142 * Allocated/set buffer and length
145 unsigned long buflen;
146 unsigned long long offset;
147 unsigned long long endpos;
150 * IO engine state, may be different from above when we get
151 * partial transfers / residual data counts
154 unsigned long xfer_buflen;
162 * io engine private data
172 struct fio_file *file;
174 struct flist_head list;
177 * Callback for io completion
179 int (*end_io)(struct thread_data *, struct io_u *);
183 * io_ops->queue() return values
186 FIO_Q_COMPLETED = 0, /* completed sync */
187 FIO_Q_QUEUED = 1, /* queued, will complete async */
188 FIO_Q_BUSY = 2, /* no more room, call ->commit() */
191 #define FIO_HDR_MAGIC 0xf00baaef
194 VERIFY_NONE = 0, /* no verification */
195 VERIFY_MD5, /* md5 sum data blocks */
196 VERIFY_CRC64, /* crc64 sum data blocks */
197 VERIFY_CRC32, /* crc32 sum data blocks */
198 VERIFY_CRC32C, /* crc32c sum data blocks */
199 VERIFY_CRC32C_INTEL, /* crc32c sum data blocks with hw */
200 VERIFY_CRC16, /* crc16 sum data blocks */
201 VERIFY_CRC7, /* crc7 sum data blocks */
202 VERIFY_SHA256, /* sha256 sum data blocks */
203 VERIFY_SHA512, /* sha512 sum data blocks */
204 VERIFY_META, /* block_num, timestamp etc. */
205 VERIFY_NULL, /* pretend to verify */
209 * A header structure associated with each checksummed data block. It is
210 * followed by a checksum specific header that contains the verification
213 struct verify_header {
214 unsigned int fio_magic;
216 unsigned int verify_type;
220 uint32_t md5_digest[16];
242 unsigned char thread;
243 unsigned short numberio;
244 unsigned long time_sec;
245 unsigned long time_usec;
248 struct group_run_stats {
249 unsigned long long max_run[2], min_run[2];
250 unsigned long long max_bw[2], min_bw[2];
251 unsigned long long io_kb[2];
252 unsigned long long agg[2];
256 * What type of allocation to use for io buffers
259 MEM_MALLOC = 0, /* ordinary malloc */
260 MEM_SHM, /* use shared memory segments */
261 MEM_SHMHUGE, /* use shared memory segments with huge pages */
262 MEM_MMAP, /* use anonynomous mmap */
263 MEM_MMAPHUGE, /* memory mapped huge file */
267 * The type of object we are working on
270 FIO_TYPE_FILE = 1, /* plain file */
271 FIO_TYPE_BD, /* block device */
272 FIO_TYPE_CHAR, /* character device */
273 FIO_TYPE_PIPE, /* pipe */
276 enum fio_ioengine_flags {
277 FIO_SYNCIO = 1 << 0, /* io engine has synchronous ->queue */
278 FIO_RAWIO = 1 << 1, /* some sort of direct/raw io */
279 FIO_DISKLESSIO = 1 << 2, /* no disk involved */
280 FIO_NOEXTEND = 1 << 3, /* engine can't extend file */
281 FIO_NODISKUTIL = 1 << 4, /* diskutil can't handle filename */
282 FIO_UNIDIR = 1 << 5, /* engine is uni-directional */
283 FIO_NOIO = 1 << 6, /* thread does only pseudo IO */
284 FIO_SIGQUIT = 1 << 7, /* needs SIGQUIT to exit */
287 enum fio_file_flags {
288 FIO_FILE_OPEN = 1 << 0, /* file is open */
289 FIO_FILE_CLOSING = 1 << 1, /* file being closed */
290 FIO_FILE_EXTEND = 1 << 2, /* needs extend */
291 FIO_FILE_DONE = 1 << 3, /* io completed to this file */
292 FIO_SIZE_KNOWN = 1 << 4, /* size has been set */
293 FIO_FILE_HASHED = 1 << 5, /* file is on hash */
297 * Each thread_data structure has a number of files associated with it,
298 * this structure holds state information for a single file.
301 struct flist_head hash_list;
302 enum fio_filetype filetype;
305 * A file may not be a file descriptor, let the io engine decide
308 unsigned long file_data;
313 * filename and possible memory mapping
317 unsigned int major, minor;
320 * size of the file, offset into file, and io size from that offset
322 unsigned long long real_file_size;
323 unsigned long long file_offset;
324 unsigned long long io_size;
326 unsigned long long last_pos;
329 * if io is protected by a semaphore, this is set
331 struct fio_mutex *lock;
333 unsigned int lock_batch;
334 enum fio_ddir lock_ddir;
337 * block map for random io
339 unsigned int *file_map;
340 unsigned int num_maps;
341 unsigned int last_free_lookup;
344 enum fio_file_flags flags;
348 * How many depth levels to log
350 #define FIO_IO_U_MAP_NR 8
351 #define FIO_IO_U_LAT_U_NR 10
352 #define FIO_IO_U_LAT_M_NR 12
363 struct io_log *slat_log;
364 struct io_log *clat_log;
365 struct io_log *bw_log;
368 * bandwidth and latency stats
370 struct io_stat clat_stat[2]; /* completion latency */
371 struct io_stat slat_stat[2]; /* submission latency */
372 struct io_stat bw_stat[2]; /* bandwidth stats */
374 unsigned long long stat_io_bytes[2];
375 struct timeval stat_sample_time[2];
378 * fio system usage accounting
380 struct rusage ru_start;
381 struct rusage ru_end;
382 unsigned long usr_time;
383 unsigned long sys_time;
385 unsigned long minf, majf;
388 * IO depth and latency stats
390 unsigned int io_u_map[FIO_IO_U_MAP_NR];
391 unsigned int io_u_submit[FIO_IO_U_MAP_NR];
392 unsigned int io_u_complete[FIO_IO_U_MAP_NR];
393 unsigned int io_u_lat_u[FIO_IO_U_LAT_U_NR];
394 unsigned int io_u_lat_m[FIO_IO_U_LAT_M_NR];
395 unsigned long total_io_u[2];
396 unsigned long short_io_u[2];
397 unsigned long total_submit;
398 unsigned long total_complete;
400 unsigned long long io_bytes[2];
401 unsigned long runtime[2];
402 unsigned long total_run_time;
410 struct thread_options {
418 enum td_ddir td_ddir;
419 unsigned int ddir_nr;
420 unsigned int iodepth;
421 unsigned int iodepth_low;
422 unsigned int iodepth_batch;
423 unsigned int iodepth_batch_complete;
425 unsigned long long size;
426 unsigned int fill_device;
427 unsigned long long file_size_low;
428 unsigned long long file_size_high;
429 unsigned long long start_offset;
433 unsigned int min_bs[2];
434 unsigned int max_bs[2];
435 struct bssplit *bssplit;
436 unsigned int bssplit_nr;
438 unsigned int nr_files;
439 unsigned int open_files;
440 enum file_lock_mode file_lock_mode;
441 unsigned int lockfile_batch;
443 unsigned int odirect;
444 unsigned int invalidate_cache;
445 unsigned int create_serialize;
446 unsigned int create_fsync;
447 unsigned int create_on_open;
448 unsigned int end_fsync;
449 unsigned int sync_io;
451 unsigned int do_verify;
452 unsigned int verifysort;
453 unsigned int verify_interval;
454 unsigned int verify_offset;
455 unsigned int verify_pattern;
456 unsigned int verify_pattern_bytes;
457 unsigned int verify_fatal;
458 unsigned int use_thread;
460 unsigned int do_disk_util;
461 unsigned int override_sync;
462 unsigned int rand_repeatable;
463 unsigned int write_lat_log;
464 unsigned int write_bw_log;
465 unsigned int norandommap;
466 unsigned int softrandommap;
467 unsigned int bs_unaligned;
468 unsigned int fsync_on_close;
470 unsigned int hugepage_size;
471 unsigned int rw_min_bs;
472 unsigned int thinktime;
473 unsigned int thinktime_spin;
474 unsigned int thinktime_blocks;
475 unsigned int fsync_blocks;
476 unsigned int start_delay;
477 unsigned long long timeout;
478 unsigned long long ramp_time;
479 unsigned int overwrite;
480 unsigned int bw_avg_time;
482 unsigned long long zone_size;
483 unsigned long long zone_skip;
484 enum fio_memtype mem_type;
486 unsigned int stonewall;
487 unsigned int new_group;
488 unsigned int numjobs;
489 os_cpu_mask_t cpumask;
490 unsigned int cpumask_set;
492 unsigned int rwmixcycle;
493 unsigned int rwmix[2];
495 unsigned int file_service_type;
496 unsigned int group_reporting;
497 unsigned int fadvise_hint;
498 unsigned int zero_buffers;
499 unsigned int refill_buffers;
500 unsigned int time_based;
501 unsigned int disable_clat;
502 unsigned int disable_slat;
503 unsigned int disable_bw;
504 unsigned int gtod_reduce;
505 unsigned int gtod_cpu;
506 unsigned int gtod_offload;
508 char *read_iolog_file;
509 char *write_iolog_file;
514 * Pre-run and post-run shell
520 unsigned int ratemin;
521 unsigned int ratecycle;
522 unsigned int rate_iops;
523 unsigned int rate_iops_min;
528 * CPU "io" cycle burner
530 unsigned int cpuload;
531 unsigned int cpucycle;
534 #define FIO_VERROR_SIZE 128
537 * This describes a single thread/process executing a fio job.
540 struct thread_options o;
541 char verror[FIO_VERROR_SIZE];
545 struct thread_stat ts;
546 struct fio_file **files;
547 unsigned int files_size;
548 unsigned int files_index;
549 unsigned int nr_open_files;
550 unsigned int nr_done_files;
551 unsigned int nr_normal_files;
553 unsigned int next_file;
554 os_random_state_t next_file_state;
560 size_t orig_buffer_size;
561 volatile int terminate;
562 volatile int runstate;
564 unsigned int ioprio_set;
565 unsigned int last_was_sync;
575 unsigned long rand_seeds[6];
577 os_random_state_t bsrange_state;
578 os_random_state_t verify_state;
583 * IO engine hooks, contains everything needed to submit an io_u
584 * to any of the available IO engines.
586 struct ioengine_ops *io_ops;
589 * Current IO depth and list of free and busy io_u's.
591 unsigned int cur_depth;
592 unsigned int io_u_queued;
593 struct flist_head io_u_freelist;
594 struct flist_head io_u_busylist;
595 struct flist_head io_u_requeues;
600 unsigned long rate_usec_cycle;
601 long rate_pending_usleep;
602 unsigned long rate_bytes;
603 unsigned long rate_blocks;
604 struct timeval lastrate;
606 unsigned long long total_io_size;
608 unsigned long io_issues[2];
609 unsigned long long io_blocks[2];
610 unsigned long long io_bytes[2];
611 unsigned long long io_skip_bytes;
612 unsigned long long this_io_bytes[2];
613 unsigned long long zone_bytes;
614 struct fio_mutex *mutex;
617 * State for random io, a bitmap of blocks done vs not done
619 os_random_state_t random_state;
621 struct timeval start; /* start of this loop */
622 struct timeval epoch; /* time job was started */
623 struct timeval rw_end[2];
624 struct timeval last_issue;
625 struct timeval tv_cache;
626 unsigned int tv_cache_nr;
627 unsigned int tv_cache_mask;
628 unsigned int rw_end_set[2];
629 unsigned int ramp_time_over;
632 * read/write mixed workload state
634 os_random_state_t rwmix_state;
635 unsigned long rwmix_issues;
636 enum fio_ddir rwmix_ddir;
637 unsigned int ddir_nr;
640 * IO history logs for verification. We use a tree for sorting,
641 * if we are overwriting. Otherwise just use a fifo.
643 struct rb_root io_hist_tree;
644 struct flist_head io_hist_list;
649 struct flist_head io_log_list;
652 * for fileservice, how often to switch to a new file
654 unsigned int file_service_nr;
655 unsigned int file_service_left;
656 struct fio_file *file_service_file;
659 * For generating file sizes
661 os_random_state_t file_size_state;
665 * roundrobin available files, or choose one at random, or do each one
669 FIO_FSERVICE_RANDOM = 1,
671 FIO_FSERVICE_SEQ = 3,
675 * when should interactive ETA output be generated
683 #define __td_verror(td, err, msg, func) \
689 snprintf(td->verror, sizeof(td->verror) - 1, "file:%s:%d, func=%s, error=%s", __FILE__, __LINE__, (func), (msg)); \
693 #define td_verror(td, err, func) \
694 __td_verror((td), (err), strerror((err)), (func))
695 #define td_vmsg(td, err, msg, func) \
696 __td_verror((td), (err), (msg), (func))
698 extern int exitall_on_terminate;
699 extern int thread_number;
700 extern int nr_process, nr_thread;
703 extern int terse_output;
704 extern int temp_stall_ts;
705 extern unsigned long long mlock_size;
706 extern unsigned long page_mask, page_size;
707 extern int read_only;
708 extern int eta_print;
709 extern unsigned long done_secs;
710 extern char *job_section;
711 extern int fio_gtod_offload;
712 extern int fio_gtod_cpu;
714 extern struct thread_data *threads;
716 #define td_read(td) ((td)->o.td_ddir & TD_DDIR_READ)
717 #define td_write(td) ((td)->o.td_ddir & TD_DDIR_WRITE)
718 #define td_rw(td) (((td)->o.td_ddir & TD_DDIR_RW) == TD_DDIR_RW)
719 #define td_random(td) ((td)->o.td_ddir & TD_DDIR_RAND)
720 #define file_randommap(td, f) (!(td)->o.norandommap && (f)->file_map)
722 static inline void fio_ro_check(struct thread_data *td, struct io_u *io_u)
724 assert(!(io_u->ddir == DDIR_WRITE && !td_write(td)));
727 #define BLOCKS_PER_MAP (8 * sizeof(int))
728 #define TO_MAP_BLOCK(f, b) (b)
729 #define RAND_MAP_IDX(f, b) (TO_MAP_BLOCK(f, b) / BLOCKS_PER_MAP)
730 #define RAND_MAP_BIT(f, b) (TO_MAP_BLOCK(f, b) & (BLOCKS_PER_MAP - 1))
732 #define MAX_JOBS (1024)
734 static inline int should_fsync(struct thread_data *td)
736 if (td->last_was_sync)
740 if (td_write(td) || td_rw(td) || td->o.override_sync)
747 * Disk utils as read in /sys/block/<dev>/stat
749 struct disk_util_stat {
752 unsigned long long sectors[2];
755 unsigned time_in_queue;
759 * Per-device disk util management
762 struct flist_head list;
763 /* If this disk is a slave, hook it into the master's
764 * list using this head.
766 struct flist_head slavelist;
773 struct disk_util_stat dus;
774 struct disk_util_stat last_dus;
776 /* For software raids, this entry maintains pointers to the
777 * entries for the slave devices. The disk_util entries for
778 * the slaves devices should primarily be maintained through
779 * the disk_list list, i.e. for memory allocation and
780 * de-allocation, etc. Whereas this list should be used only
781 * for aggregating a software RAID's disk util figures.
783 struct flist_head slaves;
789 #define DISK_UTIL_MSEC (250)
801 extern int __must_check read_iolog_get(struct thread_data *, struct io_u *);
802 extern void log_io_u(struct thread_data *, struct io_u *);
803 extern void log_file(struct thread_data *, struct fio_file *, enum file_log_act);
804 extern int __must_check init_iolog(struct thread_data *td);
805 extern void log_io_piece(struct thread_data *, struct io_u *);
806 extern void queue_io_piece(struct thread_data *, struct io_piece *);
807 extern void prune_io_piece_log(struct thread_data *);
808 extern void write_iolog_close(struct thread_data *);
813 extern void add_clat_sample(struct thread_data *, enum fio_ddir, unsigned long);
814 extern void add_slat_sample(struct thread_data *, enum fio_ddir, unsigned long);
815 extern void add_bw_sample(struct thread_data *, enum fio_ddir, struct timeval *);
816 extern void show_run_stats(void);
817 extern void init_disk_util(struct thread_data *);
818 extern void update_rusage_stat(struct thread_data *);
819 extern void update_io_ticks(void);
820 extern void setup_log(struct io_log **);
821 extern void finish_log(struct thread_data *, struct io_log *, const char *);
822 extern void finish_log_named(struct thread_data *, struct io_log *, const char *, const char *);
823 extern void __finish_log(struct io_log *, const char *);
824 extern struct io_log *agg_io_log[2];
825 extern int write_bw_log;
826 extern void add_agg_sample(unsigned long, enum fio_ddir);
831 extern unsigned long long utime_since(struct timeval *, struct timeval *);
832 extern unsigned long long utime_since_now(struct timeval *);
833 extern unsigned long mtime_since(struct timeval *, struct timeval *);
834 extern unsigned long mtime_since_now(struct timeval *);
835 extern unsigned long time_since_now(struct timeval *);
836 extern unsigned long mtime_since_genesis(void);
837 extern void usec_spin(unsigned int);
838 extern void usec_sleep(struct thread_data *, unsigned long);
839 extern void rate_throttle(struct thread_data *, unsigned long, unsigned int);
840 extern void fill_start_time(struct timeval *);
841 extern void fio_gettime(struct timeval *, void *);
842 extern void fio_gtod_init(void);
843 extern void fio_gtod_update(void);
844 extern void set_genesis_time(void);
845 extern int ramp_time_over(struct thread_data *);
846 extern int in_ramp_time(struct thread_data *);
849 * Init/option functions
851 extern int __must_check parse_options(int, char **);
852 extern int fio_options_parse(struct thread_data *, char **, int);
853 extern int fio_cmd_option_parse(struct thread_data *, const char *, char *);
854 extern void fio_fill_default_options(struct thread_data *);
855 extern int fio_show_option_help(const char *);
856 extern void fio_options_dup_and_init(struct option *);
857 extern void options_mem_dupe(struct thread_data *);
858 extern void options_mem_free(struct thread_data *);
859 extern void td_fill_rand_seeds(struct thread_data *);
860 #define FIO_GETOPT_JOB 0x89988998
861 #define FIO_NR_OPTIONS 128
864 * File setup/shutdown
866 extern void close_files(struct thread_data *);
867 extern void close_and_free_files(struct thread_data *);
868 extern int __must_check setup_files(struct thread_data *);
869 extern int __must_check file_invalidate_cache(struct thread_data *, struct fio_file *);
870 extern int __must_check generic_open_file(struct thread_data *, struct fio_file *);
871 extern int __must_check generic_close_file(struct thread_data *, struct fio_file *);
872 extern int __must_check generic_get_file_size(struct thread_data *, struct fio_file *);
873 extern int add_file(struct thread_data *, const char *);
874 extern void get_file(struct fio_file *);
875 extern int __must_check put_file(struct thread_data *, struct fio_file *);
876 extern void lock_file(struct thread_data *, struct fio_file *, enum fio_ddir);
877 extern void unlock_file(struct thread_data *, struct fio_file *);
878 extern void unlock_file_all(struct thread_data *, struct fio_file *);
879 extern int add_dir_files(struct thread_data *, const char *);
880 extern int init_random_map(struct thread_data *);
881 extern void dup_files(struct thread_data *, struct thread_data *);
882 extern int get_fileno(struct thread_data *, const char *);
883 extern void free_release_files(struct thread_data *);
888 extern void print_thread_status(void);
889 extern void print_status_init(int);
894 #ifdef FIO_HAVE_DISK_UTIL
895 extern void show_disk_util(void);
896 extern void init_disk_util(struct thread_data *);
897 extern void update_io_ticks(void);
899 #define show_disk_util()
900 #define init_disk_util(td)
901 #define update_io_ticks()
905 * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it
906 * will never back again. It may cycle between running/verififying/fsyncing.
907 * Once the thread reaches TD_EXITED, it is just waiting for the core to
922 extern void td_set_runstate(struct thread_data *, int);
927 extern void populate_verify_io_u(struct thread_data *, struct io_u *);
928 extern int __must_check get_next_verify(struct thread_data *td, struct io_u *);
929 extern int __must_check verify_io_u(struct thread_data *, struct io_u *);
934 extern int __must_check fio_pin_memory(void);
935 extern void fio_unpin_memory(void);
936 extern int __must_check allocate_io_mem(struct thread_data *);
937 extern void free_io_mem(struct thread_data *);
942 #define queue_full(td) flist_empty(&(td)->io_u_freelist)
943 extern struct io_u *__get_io_u(struct thread_data *);
944 extern struct io_u *get_io_u(struct thread_data *);
945 extern void put_io_u(struct thread_data *, struct io_u *);
946 extern void requeue_io_u(struct thread_data *, struct io_u **);
947 extern long __must_check io_u_sync_complete(struct thread_data *, struct io_u *);
948 extern long __must_check io_u_queued_complete(struct thread_data *, int);
949 extern void io_u_queued(struct thread_data *, struct io_u *);
950 extern void io_u_log_error(struct thread_data *, struct io_u *);
951 extern void io_u_mark_depth(struct thread_data *, unsigned int);
952 extern void io_u_fill_buffer(struct thread_data *td, struct io_u *, unsigned int);
953 void io_u_mark_complete(struct thread_data *, unsigned int);
954 void io_u_mark_submit(struct thread_data *, unsigned int);
957 * Reset stats after ramp time completes
959 extern void reset_all_stats(struct thread_data *);
962 * io engine entry points
964 extern int __must_check td_io_init(struct thread_data *);
965 extern int __must_check td_io_prep(struct thread_data *, struct io_u *);
966 extern int __must_check td_io_queue(struct thread_data *, struct io_u *);
967 extern int __must_check td_io_sync(struct thread_data *, struct fio_file *);
968 extern int __must_check td_io_getevents(struct thread_data *, unsigned int, unsigned int, struct timespec *);
969 extern int __must_check td_io_commit(struct thread_data *);
970 extern int __must_check td_io_open_file(struct thread_data *, struct fio_file *);
971 extern int td_io_close_file(struct thread_data *, struct fio_file *);
972 extern int __must_check td_io_get_file_size(struct thread_data *, struct fio_file *);
977 #ifdef FIO_HAVE_BLKTRACE
978 extern int is_blktrace(const char *);
979 extern int load_blktrace(struct thread_data *, const char *);
982 struct ioengine_ops {
983 struct flist_head list;
987 int (*setup)(struct thread_data *);
988 int (*init)(struct thread_data *);
989 int (*prep)(struct thread_data *, struct io_u *);
990 int (*queue)(struct thread_data *, struct io_u *);
991 int (*commit)(struct thread_data *);
992 int (*getevents)(struct thread_data *, unsigned int, unsigned int, struct timespec *);
993 struct io_u *(*event)(struct thread_data *, int);
994 int (*cancel)(struct thread_data *, struct io_u *);
995 void (*cleanup)(struct thread_data *);
996 int (*open_file)(struct thread_data *, struct fio_file *);
997 int (*close_file)(struct thread_data *, struct fio_file *);
998 int (*get_file_size)(struct thread_data *, struct fio_file *);
1003 #define FIO_IOOPS_VERSION 10
1005 extern struct ioengine_ops *load_ioengine(struct thread_data *, const char *);
1006 extern void register_ioengine(struct ioengine_ops *);
1007 extern void unregister_ioengine(struct ioengine_ops *);
1008 extern void close_ioengine(struct thread_data *);
1011 * Mark unused variables passed to ops functions as unused, to silence gcc
1013 #define fio_unused __attribute((__unused__))
1014 #define fio_init __attribute__((constructor))
1015 #define fio_exit __attribute__((destructor))
1017 #define for_each_td(td, i) \
1018 for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++)
1019 #define for_each_file(td, f, i) \
1020 if ((td)->files_index) \
1021 for ((i) = 0, (f) = (td)->files[0]; \
1022 (i) < (td)->o.nr_files && ((f) = (td)->files[i]) != NULL; \
1025 #define fio_assert(td, cond) do { \
1027 int *__foo = NULL; \
1028 fprintf(stderr, "file:%s:%d, assert %s failed\n", __FILE__, __LINE__, #cond); \
1029 (td)->runstate = TD_EXITED; \
1030 (td)->error = EFAULT; \
1035 static inline void fio_file_reset(struct fio_file *f)
1037 f->last_free_lookup = 0;
1038 f->last_pos = f->file_offset;
1040 memset(f->file_map, 0, f->num_maps * sizeof(int));
1043 static inline void clear_error(struct thread_data *td)
1046 td->verror[0] = '\0';
1049 #ifdef FIO_INC_DEBUG
1050 static inline void dprint_io_u(struct io_u *io_u, const char *p)
1052 struct fio_file *f = io_u->file;
1054 dprint(FD_IO, "%s: io_u %p: off=%llu/len=%lu/ddir=%d", p, io_u,
1055 (unsigned long long) io_u->offset,
1056 io_u->buflen, io_u->ddir);
1057 if (fio_debug & (1 << FD_IO)) {
1059 log_info("/%s", f->file_name);
1065 #define dprint_io_u(io_u, p)
1068 static inline int fio_fill_issue_time(struct thread_data *td)
1070 if (td->o.read_iolog_file ||
1071 !td->o.disable_clat || !td->o.disable_slat || !td->o.disable_bw)