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_CRC16, /* crc16 sum data blocks */
199 VERIFY_CRC7, /* crc7 sum data blocks */
200 VERIFY_SHA256, /* sha256 sum data blocks */
201 VERIFY_SHA512, /* sha512 sum data blocks */
202 VERIFY_META, /* block_num, timestamp etc. */
203 VERIFY_NULL, /* pretend to verify */
207 * A header structure associated with each checksummed data block. It is
208 * followed by a checksum specific header that contains the verification
211 struct verify_header {
212 unsigned int fio_magic;
214 unsigned int verify_type;
218 uint32_t md5_digest[16];
240 unsigned char thread;
241 unsigned short numberio;
242 unsigned long time_sec;
243 unsigned long time_usec;
246 struct group_run_stats {
247 unsigned long long max_run[2], min_run[2];
248 unsigned long long max_bw[2], min_bw[2];
249 unsigned long long io_kb[2];
250 unsigned long long agg[2];
254 * What type of allocation to use for io buffers
257 MEM_MALLOC = 0, /* ordinary malloc */
258 MEM_SHM, /* use shared memory segments */
259 MEM_SHMHUGE, /* use shared memory segments with huge pages */
260 MEM_MMAP, /* use anonynomous mmap */
261 MEM_MMAPHUGE, /* memory mapped huge file */
265 * The type of object we are working on
268 FIO_TYPE_FILE = 1, /* plain file */
269 FIO_TYPE_BD, /* block device */
270 FIO_TYPE_CHAR, /* character device */
271 FIO_TYPE_PIPE, /* pipe */
274 enum fio_ioengine_flags {
275 FIO_SYNCIO = 1 << 0, /* io engine has synchronous ->queue */
276 FIO_RAWIO = 1 << 1, /* some sort of direct/raw io */
277 FIO_DISKLESSIO = 1 << 2, /* no disk involved */
278 FIO_NOEXTEND = 1 << 3, /* engine can't extend file */
279 FIO_NODISKUTIL = 1 << 4, /* diskutil can't handle filename */
280 FIO_UNIDIR = 1 << 5, /* engine is uni-directional */
281 FIO_NOIO = 1 << 6, /* thread does only pseudo IO */
282 FIO_SIGQUIT = 1 << 7, /* needs SIGQUIT to exit */
285 enum fio_file_flags {
286 FIO_FILE_OPEN = 1 << 0, /* file is open */
287 FIO_FILE_CLOSING = 1 << 1, /* file being closed */
288 FIO_FILE_EXTEND = 1 << 2, /* needs extend */
289 FIO_FILE_DONE = 1 << 3, /* io completed to this file */
290 FIO_SIZE_KNOWN = 1 << 4, /* size has been set */
291 FIO_FILE_HASHED = 1 << 5, /* file is on hash */
295 * Each thread_data structure has a number of files associated with it,
296 * this structure holds state information for a single file.
299 struct flist_head hash_list;
300 enum fio_filetype filetype;
303 * A file may not be a file descriptor, let the io engine decide
306 unsigned long file_data;
311 * filename and possible memory mapping
315 unsigned int major, minor;
318 * size of the file, offset into file, and io size from that offset
320 unsigned long long real_file_size;
321 unsigned long long file_offset;
322 unsigned long long io_size;
324 unsigned long long last_pos;
327 * if io is protected by a semaphore, this is set
329 struct fio_mutex *lock;
331 unsigned int lock_batch;
332 enum fio_ddir lock_ddir;
335 * block map for random io
337 unsigned int *file_map;
338 unsigned int num_maps;
339 unsigned int last_free_lookup;
342 enum fio_file_flags flags;
346 * How many depth levels to log
348 #define FIO_IO_U_MAP_NR 8
349 #define FIO_IO_U_LAT_U_NR 10
350 #define FIO_IO_U_LAT_M_NR 12
361 struct io_log *slat_log;
362 struct io_log *clat_log;
363 struct io_log *bw_log;
366 * bandwidth and latency stats
368 struct io_stat clat_stat[2]; /* completion latency */
369 struct io_stat slat_stat[2]; /* submission latency */
370 struct io_stat bw_stat[2]; /* bandwidth stats */
372 unsigned long long stat_io_bytes[2];
373 struct timeval stat_sample_time[2];
376 * fio system usage accounting
378 struct rusage ru_start;
379 struct rusage ru_end;
380 unsigned long usr_time;
381 unsigned long sys_time;
383 unsigned long minf, majf;
386 * IO depth and latency stats
388 unsigned int io_u_map[FIO_IO_U_MAP_NR];
389 unsigned int io_u_submit[FIO_IO_U_MAP_NR];
390 unsigned int io_u_complete[FIO_IO_U_MAP_NR];
391 unsigned int io_u_lat_u[FIO_IO_U_LAT_U_NR];
392 unsigned int io_u_lat_m[FIO_IO_U_LAT_M_NR];
393 unsigned long total_io_u[2];
394 unsigned long short_io_u[2];
395 unsigned long total_submit;
396 unsigned long total_complete;
398 unsigned long long io_bytes[2];
399 unsigned long runtime[2];
400 unsigned long total_run_time;
408 struct thread_options {
416 enum td_ddir td_ddir;
417 unsigned int ddir_nr;
418 unsigned int iodepth;
419 unsigned int iodepth_low;
420 unsigned int iodepth_batch;
421 unsigned int iodepth_batch_complete;
423 unsigned long long size;
424 unsigned int fill_device;
425 unsigned long long file_size_low;
426 unsigned long long file_size_high;
427 unsigned long long start_offset;
430 unsigned int min_bs[2];
431 unsigned int max_bs[2];
432 struct bssplit *bssplit;
433 unsigned int bssplit_nr;
435 unsigned int nr_files;
436 unsigned int open_files;
437 enum file_lock_mode file_lock_mode;
438 unsigned int lockfile_batch;
440 unsigned int odirect;
441 unsigned int invalidate_cache;
442 unsigned int create_serialize;
443 unsigned int create_fsync;
444 unsigned int end_fsync;
445 unsigned int sync_io;
447 unsigned int do_verify;
448 unsigned int verifysort;
449 unsigned int verify_interval;
450 unsigned int verify_offset;
451 unsigned int verify_pattern;
452 unsigned int verify_pattern_bytes;
453 unsigned int verify_fatal;
454 unsigned int use_thread;
456 unsigned int do_disk_util;
457 unsigned int override_sync;
458 unsigned int rand_repeatable;
459 unsigned int write_lat_log;
460 unsigned int write_bw_log;
461 unsigned int norandommap;
462 unsigned int softrandommap;
463 unsigned int bs_unaligned;
464 unsigned int fsync_on_close;
466 unsigned int hugepage_size;
467 unsigned int rw_min_bs;
468 unsigned int thinktime;
469 unsigned int thinktime_spin;
470 unsigned int thinktime_blocks;
471 unsigned int fsync_blocks;
472 unsigned int start_delay;
473 unsigned long long timeout;
474 unsigned int overwrite;
475 unsigned int bw_avg_time;
477 unsigned long long zone_size;
478 unsigned long long zone_skip;
479 enum fio_memtype mem_type;
481 unsigned int stonewall;
482 unsigned int new_group;
483 unsigned int numjobs;
484 os_cpu_mask_t cpumask;
485 unsigned int cpumask_set;
487 unsigned int rwmixcycle;
488 unsigned int rwmix[2];
490 unsigned int file_service_type;
491 unsigned int group_reporting;
492 unsigned int fadvise_hint;
493 unsigned int zero_buffers;
494 unsigned int refill_buffers;
495 unsigned int time_based;
497 char *read_iolog_file;
498 char *write_iolog_file;
501 * Pre-run and post-run shell
507 unsigned int ratemin;
508 unsigned int ratecycle;
509 unsigned int rate_iops;
510 unsigned int rate_iops_min;
515 * CPU "io" cycle burner
517 unsigned int cpuload;
518 unsigned int cpucycle;
521 #define FIO_VERROR_SIZE 128
524 * This describes a single thread/process executing a fio job.
527 struct thread_options o;
528 char verror[FIO_VERROR_SIZE];
532 struct thread_stat ts;
533 struct fio_file **files;
534 unsigned int files_index;
535 unsigned int nr_open_files;
536 unsigned int nr_done_files;
537 unsigned int nr_normal_files;
539 unsigned int next_file;
540 os_random_state_t next_file_state;
546 size_t orig_buffer_size;
547 volatile int terminate;
548 volatile int runstate;
550 unsigned int ioprio_set;
551 unsigned int last_was_sync;
561 os_random_state_t bsrange_state;
562 os_random_state_t verify_state;
567 * IO engine hooks, contains everything needed to submit an io_u
568 * to any of the available IO engines.
570 struct ioengine_ops *io_ops;
573 * Current IO depth and list of free and busy io_u's.
575 unsigned int cur_depth;
576 unsigned int io_u_queued;
577 struct flist_head io_u_freelist;
578 struct flist_head io_u_busylist;
579 struct flist_head io_u_requeues;
584 unsigned long rate_usec_cycle;
585 long rate_pending_usleep;
586 unsigned long rate_bytes;
587 unsigned long rate_blocks;
588 struct timeval lastrate;
590 unsigned long long total_io_size;
592 unsigned long io_issues[2];
593 unsigned long long io_blocks[2];
594 unsigned long long io_bytes[2];
595 unsigned long long io_skip_bytes;
596 unsigned long long this_io_bytes[2];
597 unsigned long long zone_bytes;
598 struct fio_mutex *mutex;
601 * State for random io, a bitmap of blocks done vs not done
603 os_random_state_t random_state;
605 struct timeval start; /* start of this loop */
606 struct timeval epoch; /* time job was started */
607 struct timeval rw_end[2];
608 struct timeval last_issue;
609 unsigned int rw_end_set[2];
612 * read/write mixed workload state
614 os_random_state_t rwmix_state;
615 unsigned long rwmix_issues;
616 enum fio_ddir rwmix_ddir;
617 unsigned int ddir_nr;
620 * IO history logs for verification. We use a tree for sorting,
621 * if we are overwriting. Otherwise just use a fifo.
623 struct rb_root io_hist_tree;
624 struct flist_head io_hist_list;
629 struct flist_head io_log_list;
634 struct timeval timeout_end;
635 struct itimerval timer;
638 * for fileservice, how often to switch to a new file
640 unsigned int file_service_nr;
641 unsigned int file_service_left;
642 struct fio_file *file_service_file;
645 * For generating file sizes
647 os_random_state_t file_size_state;
651 * roundrobin available files, or choose one at random.
654 FIO_FSERVICE_RANDOM = 1,
659 * when should interactive ETA output be generated
668 * 30 second per-io_u timeout, with 5 second intervals to avoid resetting
669 * the timer on each queue operation.
671 #define IO_U_TIMEOUT_INC 5
672 #define IO_U_TIMEOUT 30
674 #define __td_verror(td, err, msg, func) \
680 snprintf(td->verror, sizeof(td->verror) - 1, "file:%s:%d, func=%s, error=%s", __FILE__, __LINE__, (func), (msg)); \
684 #define td_verror(td, err, func) \
685 __td_verror((td), (err), strerror((err)), (func))
686 #define td_vmsg(td, err, msg, func) \
687 __td_verror((td), (err), (msg), (func))
689 extern int exitall_on_terminate;
690 extern int thread_number;
691 extern int nr_process, nr_thread;
694 extern int terse_output;
695 extern int temp_stall_ts;
696 extern unsigned long long mlock_size;
697 extern unsigned long page_mask, page_size;
698 extern int read_only;
699 extern int eta_print;
700 extern unsigned long done_secs;
701 extern char *job_section;
703 extern struct thread_data *threads;
705 #define td_read(td) ((td)->o.td_ddir & TD_DDIR_READ)
706 #define td_write(td) ((td)->o.td_ddir & TD_DDIR_WRITE)
707 #define td_rw(td) (((td)->o.td_ddir & TD_DDIR_RW) == TD_DDIR_RW)
708 #define td_random(td) ((td)->o.td_ddir & TD_DDIR_RAND)
709 #define file_randommap(td, f) (!(td)->o.norandommap && (f)->file_map)
711 static inline void fio_ro_check(struct thread_data *td, struct io_u *io_u)
713 assert(!(io_u->ddir == DDIR_WRITE && !td_write(td)));
716 #define BLOCKS_PER_MAP (8 * sizeof(int))
717 #define TO_MAP_BLOCK(f, b) (b)
718 #define RAND_MAP_IDX(f, b) (TO_MAP_BLOCK(f, b) / BLOCKS_PER_MAP)
719 #define RAND_MAP_BIT(f, b) (TO_MAP_BLOCK(f, b) & (BLOCKS_PER_MAP - 1))
721 #define MAX_JOBS (1024)
723 static inline int should_fsync(struct thread_data *td)
725 if (td->last_was_sync)
729 if (td_write(td) || td_rw(td) || td->o.override_sync)
736 * Disk utils as read in /sys/block/<dev>/stat
738 struct disk_util_stat {
741 unsigned long long sectors[2];
744 unsigned time_in_queue;
748 * Per-device disk util management
751 struct flist_head list;
758 struct disk_util_stat dus;
759 struct disk_util_stat last_dus;
765 #define DISK_UTIL_MSEC (250)
777 extern int __must_check read_iolog_get(struct thread_data *, struct io_u *);
778 extern void log_io_u(struct thread_data *, struct io_u *);
779 extern void log_file(struct thread_data *, struct fio_file *, enum file_log_act);
780 extern int __must_check init_iolog(struct thread_data *td);
781 extern void log_io_piece(struct thread_data *, struct io_u *);
782 extern void queue_io_piece(struct thread_data *, struct io_piece *);
783 extern void prune_io_piece_log(struct thread_data *);
784 extern void write_iolog_close(struct thread_data *);
789 extern void add_clat_sample(struct thread_data *, enum fio_ddir, unsigned long);
790 extern void add_slat_sample(struct thread_data *, enum fio_ddir, unsigned long);
791 extern void add_bw_sample(struct thread_data *, enum fio_ddir, struct timeval *);
792 extern void show_run_stats(void);
793 extern void init_disk_util(struct thread_data *);
794 extern void update_rusage_stat(struct thread_data *);
795 extern void update_io_ticks(void);
796 extern void setup_log(struct io_log **);
797 extern void finish_log(struct thread_data *, struct io_log *, const char *);
798 extern void __finish_log(struct io_log *, const char *);
799 extern struct io_log *agg_io_log[2];
800 extern int write_bw_log;
801 extern void add_agg_sample(unsigned long, enum fio_ddir);
806 extern unsigned long long utime_since(struct timeval *, struct timeval *);
807 extern unsigned long long utime_since_now(struct timeval *);
808 extern unsigned long mtime_since(struct timeval *, struct timeval *);
809 extern unsigned long mtime_since_now(struct timeval *);
810 extern unsigned long time_since_now(struct timeval *);
811 extern unsigned long mtime_since_genesis(void);
812 extern void __usec_sleep(unsigned int);
813 extern void usec_sleep(struct thread_data *, unsigned long);
814 extern void rate_throttle(struct thread_data *, unsigned long, unsigned int);
815 extern void fill_start_time(struct timeval *);
816 extern void fio_gettime(struct timeval *, void *);
817 extern void set_genesis_time(void);
820 * Init/option functions
822 extern int __must_check parse_options(int, char **);
823 extern int fio_option_parse(struct thread_data *, const char *);
824 extern int fio_cmd_option_parse(struct thread_data *, const char *, char *);
825 extern void fio_fill_default_options(struct thread_data *);
826 extern int fio_show_option_help(const char *);
827 extern void fio_options_dup_and_init(struct option *);
828 extern void options_mem_dupe(struct thread_data *);
829 extern void options_mem_free(struct thread_data *);
830 #define FIO_GETOPT_JOB 0x89988998
831 #define FIO_NR_OPTIONS 128
834 * File setup/shutdown
836 extern void close_files(struct thread_data *);
837 extern void close_and_free_files(struct thread_data *);
838 extern int __must_check setup_files(struct thread_data *);
839 extern int __must_check open_files(struct thread_data *);
840 extern int __must_check file_invalidate_cache(struct thread_data *, struct fio_file *);
841 extern int __must_check generic_open_file(struct thread_data *, struct fio_file *);
842 extern int __must_check generic_close_file(struct thread_data *, struct fio_file *);
843 extern int add_file(struct thread_data *, const char *);
844 extern void get_file(struct fio_file *);
845 extern int __must_check put_file(struct thread_data *, struct fio_file *);
846 extern void lock_file(struct thread_data *, struct fio_file *, enum fio_ddir);
847 extern void unlock_file(struct thread_data *, struct fio_file *);
848 extern void unlock_file_all(struct thread_data *, struct fio_file *);
849 extern int add_dir_files(struct thread_data *, const char *);
850 extern int init_random_map(struct thread_data *);
851 extern void dup_files(struct thread_data *, struct thread_data *);
852 extern int get_fileno(struct thread_data *, const char *);
853 extern void free_release_files(struct thread_data *);
858 extern void print_thread_status(void);
859 extern void print_status_init(int);
864 #ifdef FIO_HAVE_DISK_UTIL
865 extern void show_disk_util(void);
866 extern void init_disk_util(struct thread_data *);
867 extern void update_io_ticks(void);
869 #define show_disk_util()
870 #define init_disk_util(td)
871 #define update_io_ticks()
875 * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it
876 * will never back again. It may cycle between running/verififying/fsyncing.
877 * Once the thread reaches TD_EXITED, it is just waiting for the core to
894 extern void populate_verify_io_u(struct thread_data *, struct io_u *);
895 extern int __must_check get_next_verify(struct thread_data *td, struct io_u *);
896 extern int __must_check verify_io_u(struct thread_data *, struct io_u *);
901 extern int __must_check fio_pin_memory(void);
902 extern void fio_unpin_memory(void);
903 extern int __must_check allocate_io_mem(struct thread_data *);
904 extern void free_io_mem(struct thread_data *);
909 #define queue_full(td) flist_empty(&(td)->io_u_freelist)
910 extern struct io_u *__get_io_u(struct thread_data *);
911 extern struct io_u *get_io_u(struct thread_data *);
912 extern void put_io_u(struct thread_data *, struct io_u *);
913 extern void requeue_io_u(struct thread_data *, struct io_u **);
914 extern long __must_check io_u_sync_complete(struct thread_data *, struct io_u *);
915 extern long __must_check io_u_queued_complete(struct thread_data *, int);
916 extern void io_u_queued(struct thread_data *, struct io_u *);
917 extern void io_u_log_error(struct thread_data *, struct io_u *);
918 extern void io_u_init_timeout(void);
919 extern void io_u_set_timeout(struct thread_data *);
920 extern void io_u_mark_depth(struct thread_data *, unsigned int);
921 extern void io_u_fill_buffer(struct thread_data *td, struct io_u *, unsigned int);
922 void io_u_mark_complete(struct thread_data *, unsigned int);
923 void io_u_mark_submit(struct thread_data *, unsigned int);
926 * io engine entry points
928 extern int __must_check td_io_init(struct thread_data *);
929 extern int __must_check td_io_prep(struct thread_data *, struct io_u *);
930 extern int __must_check td_io_queue(struct thread_data *, struct io_u *);
931 extern int __must_check td_io_sync(struct thread_data *, struct fio_file *);
932 extern int __must_check td_io_getevents(struct thread_data *, unsigned int, unsigned int, struct timespec *);
933 extern int __must_check td_io_commit(struct thread_data *);
934 extern int __must_check td_io_open_file(struct thread_data *, struct fio_file *);
935 extern int td_io_close_file(struct thread_data *, struct fio_file *);
940 #ifdef FIO_HAVE_BLKTRACE
941 extern int is_blktrace(const char *);
942 extern int load_blktrace(struct thread_data *, const char *);
945 struct ioengine_ops {
946 struct flist_head list;
950 int (*setup)(struct thread_data *);
951 int (*init)(struct thread_data *);
952 int (*prep)(struct thread_data *, struct io_u *);
953 int (*queue)(struct thread_data *, struct io_u *);
954 int (*commit)(struct thread_data *);
955 int (*getevents)(struct thread_data *, unsigned int, unsigned int, struct timespec *);
956 struct io_u *(*event)(struct thread_data *, int);
957 int (*cancel)(struct thread_data *, struct io_u *);
958 void (*cleanup)(struct thread_data *);
959 int (*open_file)(struct thread_data *, struct fio_file *);
960 int (*close_file)(struct thread_data *, struct fio_file *);
965 #define FIO_IOOPS_VERSION 9
967 extern struct ioengine_ops *load_ioengine(struct thread_data *, const char *);
968 extern void register_ioengine(struct ioengine_ops *);
969 extern void unregister_ioengine(struct ioengine_ops *);
970 extern void close_ioengine(struct thread_data *);
973 * Mark unused variables passed to ops functions as unused, to silence gcc
975 #define fio_unused __attribute((__unused__))
976 #define fio_init __attribute__((constructor))
977 #define fio_exit __attribute__((destructor))
979 #define for_each_td(td, i) \
980 for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++)
981 #define for_each_file(td, f, i) \
982 if ((td)->files_index) \
983 for ((i) = 0, (f) = (td)->files[0]; \
984 (i) < (td)->o.nr_files && ((f) = (td)->files[i]) != NULL; \
987 #define fio_assert(td, cond) do { \
990 fprintf(stderr, "file:%s:%d, assert %s failed\n", __FILE__, __LINE__, #cond); \
991 (td)->runstate = TD_EXITED; \
992 (td)->error = EFAULT; \
997 static inline void fio_file_reset(struct fio_file *f)
999 f->last_free_lookup = 0;
1000 f->last_pos = f->file_offset;
1003 static inline void clear_error(struct thread_data *td)
1006 td->verror[0] = '\0';
1009 #ifdef FIO_INC_DEBUG
1010 static inline void dprint_io_u(struct io_u *io_u, const char *p)
1012 struct fio_file *f = io_u->file;
1014 dprint(FD_IO, "%s: io_u %p: off=%llu/len=%lu/ddir=%d", p, io_u,
1015 (unsigned long long) io_u->offset,
1016 io_u->buflen, io_u->ddir);
1017 if (fio_debug & (1 << FD_IO)) {
1019 log_info("/%s", f->file_name);
1025 #define dprint_io_u(io_u, p)