Commit | Line | Data |
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ebac4655 JA |
1 | #ifndef FIO_H |
2 | #define FIO_H | |
3 | ||
4 | #include <sched.h> | |
5 | #include <limits.h> | |
6 | #include <pthread.h> | |
7 | #include <sys/time.h> | |
8 | #include <sys/resource.h> | |
3c39a379 JA |
9 | #include <errno.h> |
10 | #include <stdlib.h> | |
11 | #include <stdio.h> | |
6d6f031f | 12 | #include <unistd.h> |
ebac4655 JA |
13 | |
14 | #include "list.h" | |
15 | #include "md5.h" | |
16 | #include "crc32.h" | |
17 | #include "arch.h" | |
18 | #include "os.h" | |
19 | ||
20 | struct io_stat { | |
21 | unsigned long val; | |
22 | unsigned long val_sq; | |
23 | unsigned long max_val; | |
24 | unsigned long min_val; | |
25 | unsigned long samples; | |
26 | }; | |
27 | ||
28 | struct io_sample { | |
29 | unsigned long time; | |
30 | unsigned long val; | |
31 | unsigned int ddir; | |
32 | }; | |
33 | ||
34 | struct io_log { | |
35 | unsigned long nr_samples; | |
36 | unsigned long max_samples; | |
37 | struct io_sample *log; | |
38 | }; | |
39 | ||
40 | struct io_piece { | |
41 | struct list_head list; | |
53cdc686 | 42 | struct fio_file *file; |
ebac4655 JA |
43 | unsigned long long offset; |
44 | unsigned int len; | |
aea47d44 | 45 | int ddir; |
ebac4655 JA |
46 | }; |
47 | ||
48 | /* | |
49 | * The io unit | |
50 | */ | |
51 | struct io_u { | |
52 | union { | |
53 | #ifdef FIO_HAVE_LIBAIO | |
54 | struct iocb iocb; | |
55 | #endif | |
56 | #ifdef FIO_HAVE_POSIXAIO | |
57 | struct aiocb aiocb; | |
58 | #endif | |
59 | #ifdef FIO_HAVE_SGIO | |
60 | struct sg_io_hdr hdr; | |
61 | #endif | |
62 | }; | |
63 | struct timeval start_time; | |
64 | struct timeval issue_time; | |
65 | ||
66 | char *buf; | |
67 | unsigned int buflen; | |
68 | unsigned long long offset; | |
b1ff3403 | 69 | unsigned int index; |
ebac4655 JA |
70 | |
71 | unsigned int resid; | |
72 | unsigned int error; | |
73 | ||
74 | unsigned char seen; | |
75 | unsigned char ddir; | |
76 | ||
53cdc686 JA |
77 | struct fio_file *file; |
78 | ||
ebac4655 JA |
79 | struct list_head list; |
80 | }; | |
81 | ||
82 | #define FIO_HDR_MAGIC 0xf00baaef | |
83 | ||
84 | enum { | |
85 | VERIFY_NONE = 0, | |
86 | VERIFY_MD5, | |
87 | VERIFY_CRC32, | |
88 | }; | |
89 | ||
90 | struct verify_header { | |
91 | unsigned int fio_magic; | |
92 | unsigned int len; | |
93 | unsigned int verify_type; | |
94 | union { | |
95 | char md5_digest[MD5_HASH_WORDS * 4]; | |
96 | unsigned long crc32; | |
97 | }; | |
98 | }; | |
99 | ||
100 | struct group_run_stats { | |
9104f874 JA |
101 | unsigned long long max_run[2], min_run[2]; |
102 | unsigned long long max_bw[2], min_bw[2]; | |
e9b2a3fa | 103 | unsigned long long io_kb[2]; |
9104f874 | 104 | unsigned long long agg[2]; |
ebac4655 JA |
105 | }; |
106 | ||
e9c047a0 JA |
107 | enum fio_ddir { |
108 | DDIR_READ = 0, | |
109 | DDIR_WRITE, | |
110 | }; | |
111 | ||
112 | /* | |
113 | * What type of allocation to use for io buffers | |
114 | */ | |
115 | enum fio_memtype { | |
116 | MEM_MALLOC = 0, /* ordinary malloc */ | |
117 | MEM_SHM, /* use shared memory segments */ | |
118 | MEM_MMAP, /* use anonynomous mmap */ | |
119 | }; | |
120 | ||
121 | /* | |
122 | * The type of object we are working on | |
123 | */ | |
124 | enum fio_filetype { | |
125 | FIO_TYPE_FILE = 1, | |
126 | FIO_TYPE_BD, | |
127 | FIO_TYPE_CHAR, | |
128 | }; | |
129 | ||
2866c82d | 130 | enum fio_ioengine_flags { |
e9c047a0 | 131 | FIO_SYNCIO = 1 << 0, |
2866c82d JA |
132 | FIO_CPUIO = 1 << 1, |
133 | FIO_MMAPIO = 1 << 2, | |
b2a15192 | 134 | FIO_RAWIO = 1 << 3, |
e9c047a0 JA |
135 | }; |
136 | ||
53cdc686 JA |
137 | struct fio_file { |
138 | /* | |
139 | * A file may not be a file descriptor, let the io engine decide | |
140 | */ | |
141 | union { | |
142 | unsigned long file_data; | |
143 | int fd; | |
144 | }; | |
145 | char *file_name; | |
146 | void *mmap; | |
147 | unsigned long long file_size; | |
148 | unsigned long long real_file_size; | |
149 | unsigned long long file_offset; | |
150 | unsigned long long last_pos; | |
151 | ||
152 | unsigned long *file_map; | |
153 | unsigned int num_maps; | |
154 | }; | |
155 | ||
e9c047a0 JA |
156 | /* |
157 | * This describes a single thread/process executing a fio job. | |
158 | */ | |
ebac4655 | 159 | struct thread_data { |
e9c047a0 | 160 | char name[32]; |
ef899b63 | 161 | char *directory; |
13f8e2d2 | 162 | char *filename; |
ebac4655 JA |
163 | char verror[80]; |
164 | pthread_t thread; | |
165 | int thread_number; | |
166 | int groupid; | |
e9c047a0 | 167 | enum fio_filetype filetype; |
53cdc686 JA |
168 | struct fio_file *files; |
169 | unsigned int nr_files; | |
13f8e2d2 | 170 | unsigned int nr_uniq_files; |
53cdc686 | 171 | unsigned int next_file; |
ebac4655 | 172 | int error; |
ebac4655 JA |
173 | pid_t pid; |
174 | char *orig_buffer; | |
175 | size_t orig_buffer_size; | |
176 | volatile int terminate; | |
177 | volatile int runstate; | |
e9c047a0 | 178 | enum fio_ddir ddir; |
3d60d1ed | 179 | unsigned int iomix; |
ebac4655 | 180 | unsigned int ioprio; |
e9c047a0 JA |
181 | |
182 | unsigned char sequential; | |
183 | unsigned char odirect; | |
e9c047a0 JA |
184 | unsigned char invalidate_cache; |
185 | unsigned char create_serialize; | |
186 | unsigned char create_fsync; | |
187 | unsigned char end_fsync; | |
188 | unsigned char sync_io; | |
189 | unsigned char verify; | |
190 | unsigned char use_thread; | |
f6cbb269 | 191 | unsigned char unlink; |
e9c047a0 JA |
192 | unsigned char do_disk_util; |
193 | unsigned char override_sync; | |
9ebc27e1 | 194 | unsigned char rand_repeatable; |
ec94ec56 JA |
195 | unsigned char write_lat_log; |
196 | unsigned char write_bw_log; | |
e9c047a0 | 197 | |
ebac4655 JA |
198 | unsigned int bs; |
199 | unsigned int min_bs; | |
200 | unsigned int max_bs; | |
ebac4655 JA |
201 | unsigned int thinktime; |
202 | unsigned int fsync_blocks; | |
203 | unsigned int start_delay; | |
906c8d75 | 204 | unsigned long timeout; |
ebac4655 | 205 | unsigned int overwrite; |
ebac4655 | 206 | unsigned int bw_avg_time; |
ebac4655 | 207 | unsigned int loops; |
20dc95c4 JA |
208 | unsigned long long zone_size; |
209 | unsigned long long zone_skip; | |
e9c047a0 | 210 | enum fio_memtype mem_type; |
ebac4655 JA |
211 | unsigned int stonewall; |
212 | unsigned int numjobs; | |
ebac4655 JA |
213 | unsigned int iodepth; |
214 | os_cpu_mask_t cpumask; | |
aea47d44 | 215 | unsigned int iolog; |
843a7413 JA |
216 | unsigned int read_iolog; |
217 | unsigned int write_iolog; | |
a6ccc7be JA |
218 | unsigned int rwmixcycle; |
219 | unsigned int rwmixread; | |
b6f4d880 | 220 | unsigned int nice; |
aea47d44 | 221 | |
ef899b63 | 222 | char *iolog_file; |
843a7413 JA |
223 | void *iolog_buf; |
224 | FILE *iolog_f; | |
ebac4655 | 225 | |
da86774e | 226 | char *sysfs_root; |
da86774e JA |
227 | char *ioscheduler; |
228 | ||
6dfd46b9 JA |
229 | os_random_state_t bsrange_state; |
230 | os_random_state_t verify_state; | |
ebac4655 JA |
231 | |
232 | int shm_id; | |
233 | ||
e9c047a0 JA |
234 | /* |
235 | * IO engine hooks, contains everything needed to submit an io_u | |
236 | * to any of the available IO engines. | |
237 | */ | |
2866c82d | 238 | struct ioengine_ops *io_ops; |
ebac4655 | 239 | |
e9c047a0 JA |
240 | /* |
241 | * Current IO depth and list of free and busy io_u's. | |
242 | */ | |
ebac4655 JA |
243 | unsigned int cur_depth; |
244 | struct list_head io_u_freelist; | |
245 | struct list_head io_u_busylist; | |
246 | ||
e9c047a0 JA |
247 | /* |
248 | * Rate state | |
249 | */ | |
ebac4655 JA |
250 | unsigned int rate; |
251 | unsigned int ratemin; | |
252 | unsigned int ratecycle; | |
253 | unsigned long rate_usec_cycle; | |
254 | long rate_pending_usleep; | |
255 | unsigned long rate_bytes; | |
256 | struct timeval lastrate; | |
257 | ||
258 | unsigned long runtime[2]; /* msec */ | |
259 | unsigned long long io_size; | |
53cdc686 JA |
260 | unsigned long long total_file_size; |
261 | unsigned long long start_offset; | |
ebac4655 JA |
262 | unsigned long long total_io_size; |
263 | ||
9104f874 JA |
264 | unsigned long long io_blocks[2]; |
265 | unsigned long long io_bytes[2]; | |
266 | unsigned long long zone_bytes; | |
267 | unsigned long long this_io_bytes[2]; | |
bbfd6b00 | 268 | volatile int mutex; |
ebac4655 | 269 | |
e9c047a0 JA |
270 | /* |
271 | * State for random io, a bitmap of blocks done vs not done | |
272 | */ | |
6dfd46b9 | 273 | os_random_state_t random_state; |
ebac4655 | 274 | |
b990b5c0 JA |
275 | /* |
276 | * CPU "io" cycle burner | |
277 | */ | |
278 | unsigned int cpuload; | |
279 | unsigned int cpucycle; | |
280 | ||
ebac4655 JA |
281 | /* |
282 | * bandwidth and latency stats | |
283 | */ | |
284 | struct io_stat clat_stat[2]; /* completion latency */ | |
285 | struct io_stat slat_stat[2]; /* submission latency */ | |
286 | struct io_stat bw_stat[2]; /* bandwidth stats */ | |
287 | ||
9104f874 | 288 | unsigned long long stat_io_bytes[2]; |
ebac4655 JA |
289 | struct timeval stat_sample_time[2]; |
290 | ||
291 | struct io_log *slat_log; | |
292 | struct io_log *clat_log; | |
293 | struct io_log *bw_log; | |
294 | ||
295 | struct timeval start; /* start of this loop */ | |
296 | struct timeval epoch; /* time job was started */ | |
297 | ||
e9c047a0 JA |
298 | /* |
299 | * fio system usage accounting | |
300 | */ | |
ebac4655 JA |
301 | struct rusage ru_start; |
302 | struct rusage ru_end; | |
303 | unsigned long usr_time; | |
304 | unsigned long sys_time; | |
305 | unsigned long ctx; | |
306 | ||
e9c047a0 JA |
307 | /* |
308 | * read/write mixed workload state | |
309 | */ | |
6dfd46b9 | 310 | os_random_state_t rwmix_state; |
a6ccc7be | 311 | struct timeval rwmix_switch; |
e9c047a0 | 312 | enum fio_ddir rwmix_ddir; |
a6ccc7be | 313 | |
4e0ba8af JA |
314 | /* |
315 | * Pre-run and post-run shell | |
316 | */ | |
317 | char *exec_prerun; | |
318 | char *exec_postrun; | |
319 | ||
e9c047a0 JA |
320 | /* |
321 | * IO historic logs | |
322 | */ | |
ebac4655 | 323 | struct list_head io_hist_list; |
aea47d44 | 324 | struct list_head io_log_list; |
ebac4655 JA |
325 | }; |
326 | ||
b990b5c0 | 327 | #define __td_verror(td, err, msg) \ |
ebac4655 JA |
328 | do { \ |
329 | int e = (err); \ | |
330 | (td)->error = e; \ | |
b990b5c0 | 331 | snprintf(td->verror, sizeof(td->verror) - 1, "file:%s:%d, error=%s", __FILE__, __LINE__, (msg)); \ |
ebac4655 JA |
332 | } while (0) |
333 | ||
b990b5c0 JA |
334 | |
335 | #define td_verror(td, err) __td_verror((td), (err), strerror((err))) | |
336 | #define td_vmsg(td, err, msg) __td_verror((td), (err), (msg)) | |
337 | ||
ebac4655 | 338 | extern int rate_quit; |
ebac4655 JA |
339 | extern int exitall_on_terminate; |
340 | extern int thread_number; | |
341 | extern int shm_id; | |
342 | extern int groupid; | |
c6ae0a5b | 343 | extern int terse_output; |
eb8bbf48 JA |
344 | extern FILE *f_out; |
345 | extern FILE *f_err; | |
c1d5725e | 346 | extern char *fio_inst_prefix; |
53cdc686 | 347 | extern int temp_stall_ts; |
ebac4655 JA |
348 | |
349 | extern struct thread_data *threads; | |
350 | ||
ebac4655 JA |
351 | #define td_read(td) ((td)->ddir == DDIR_READ) |
352 | #define td_write(td) ((td)->ddir == DDIR_WRITE) | |
3d60d1ed | 353 | #define td_rw(td) ((td)->iomix != 0) |
ebac4655 JA |
354 | |
355 | #define BLOCKS_PER_MAP (8 * sizeof(long)) | |
53cdc686 JA |
356 | #define TO_MAP_BLOCK(td, f, b) ((b) - ((f)->file_offset / (td)->min_bs)) |
357 | #define RAND_MAP_IDX(td, f, b) (TO_MAP_BLOCK(td, f, b) / BLOCKS_PER_MAP) | |
358 | #define RAND_MAP_BIT(td, f, b) (TO_MAP_BLOCK(td, f, b) & (BLOCKS_PER_MAP - 1)) | |
ebac4655 JA |
359 | |
360 | #define MAX_JOBS (1024) | |
361 | ||
362 | struct disk_util_stat { | |
363 | unsigned ios[2]; | |
364 | unsigned merges[2]; | |
365 | unsigned long long sectors[2]; | |
366 | unsigned ticks[2]; | |
367 | unsigned io_ticks; | |
368 | unsigned time_in_queue; | |
369 | }; | |
370 | ||
371 | struct disk_util { | |
372 | struct list_head list; | |
373 | ||
374 | char *name; | |
375 | char path[256]; | |
376 | dev_t dev; | |
377 | ||
378 | struct disk_util_stat dus; | |
379 | struct disk_util_stat last_dus; | |
380 | ||
381 | unsigned long msec; | |
382 | struct timeval time; | |
383 | }; | |
384 | ||
385 | struct io_completion_data { | |
386 | int nr; /* input */ | |
387 | ||
388 | int error; /* output */ | |
389 | unsigned long bytes_done[2]; /* output */ | |
390 | }; | |
391 | ||
392 | #define DISK_UTIL_MSEC (250) | |
393 | ||
6a0106a0 JA |
394 | #ifndef min |
395 | #define min(a, b) ((a) < (b) ? (a) : (b)) | |
396 | #endif | |
397 | ||
6796209a JA |
398 | /* |
399 | * Log exports | |
400 | */ | |
401 | extern int read_iolog_get(struct thread_data *, struct io_u *); | |
402 | extern void write_iolog_put(struct thread_data *, struct io_u *); | |
403 | extern int init_iolog(struct thread_data *td); | |
404 | extern void log_io_piece(struct thread_data *, struct io_u *); | |
405 | extern void prune_io_piece_log(struct thread_data *); | |
406 | extern void write_iolog_close(struct thread_data *); | |
407 | ||
408 | /* | |
409 | * Logging | |
410 | */ | |
411 | extern void add_clat_sample(struct thread_data *, int, unsigned long); | |
412 | extern void add_slat_sample(struct thread_data *, int, unsigned long); | |
413 | extern void add_bw_sample(struct thread_data *, int); | |
414 | extern void show_run_stats(void); | |
415 | extern void init_disk_util(struct thread_data *); | |
416 | extern void update_rusage_stat(struct thread_data *); | |
417 | extern void update_io_ticks(void); | |
418 | extern void disk_util_timer_arm(void); | |
8914a9d8 JA |
419 | extern void setup_log(struct io_log **); |
420 | extern void finish_log(struct thread_data *, struct io_log *, const char *); | |
421 | extern int setup_rate(struct thread_data *); | |
6796209a JA |
422 | |
423 | /* | |
424 | * Time functions | |
425 | */ | |
263e529f | 426 | extern void time_init(void); |
6796209a JA |
427 | extern unsigned long utime_since(struct timeval *, struct timeval *); |
428 | extern unsigned long mtime_since(struct timeval *, struct timeval *); | |
429 | extern unsigned long mtime_since_now(struct timeval *); | |
430 | extern unsigned long time_since_now(struct timeval *); | |
263e529f | 431 | extern unsigned long mtime_since_genesis(void); |
b990b5c0 | 432 | extern void __usec_sleep(unsigned int); |
6796209a JA |
433 | extern void usec_sleep(struct thread_data *, unsigned long); |
434 | extern void rate_throttle(struct thread_data *, unsigned long, unsigned int); | |
435 | ||
8914a9d8 JA |
436 | /* |
437 | * Init functions | |
438 | */ | |
439 | extern int parse_options(int, char **); | |
440 | extern int init_random_state(struct thread_data *); | |
441 | ||
53cdc686 JA |
442 | /* |
443 | * File setup/shutdown | |
444 | */ | |
445 | extern void close_files(struct thread_data *); | |
446 | extern int setup_files(struct thread_data *); | |
e5b401d4 | 447 | extern int file_invalidate_cache(struct thread_data *, struct fio_file *); |
53cdc686 | 448 | |
263e529f JA |
449 | /* |
450 | * ETA/status stuff | |
451 | */ | |
452 | extern void print_thread_status(void); | |
453 | extern void print_status_init(int); | |
454 | ||
455 | /* | |
456 | * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it | |
457 | * will never back again. It may cycle between running/verififying/fsyncing. | |
458 | * Once the thread reaches TD_EXITED, it is just waiting for the core to | |
459 | * reap it. | |
460 | */ | |
461 | enum { | |
462 | TD_NOT_CREATED = 0, | |
463 | TD_CREATED, | |
464 | TD_INITIALIZED, | |
465 | TD_RUNNING, | |
466 | TD_VERIFYING, | |
467 | TD_FSYNCING, | |
468 | TD_EXITED, | |
469 | TD_REAPED, | |
470 | }; | |
471 | ||
e29d1b70 JA |
472 | /* |
473 | * Verify helpers | |
474 | */ | |
475 | extern void populate_verify_io_u(struct thread_data *, struct io_u *); | |
476 | extern int get_next_verify(struct thread_data *td, struct io_u *); | |
a9619d44 | 477 | extern int do_io_u_verify(struct thread_data *, struct io_u **); |
e29d1b70 | 478 | |
2f9ade3c JA |
479 | /* |
480 | * Memory helpers | |
481 | */ | |
482 | extern int fio_pin_memory(void); | |
483 | extern void fio_unpin_memory(void); | |
484 | extern int allocate_io_mem(struct thread_data *); | |
485 | extern void free_io_mem(struct thread_data *); | |
486 | ||
10ba535a JA |
487 | /* |
488 | * io unit handling | |
489 | */ | |
490 | #define queue_full(td) list_empty(&(td)->io_u_freelist) | |
491 | extern struct io_u *__get_io_u(struct thread_data *); | |
492 | extern struct io_u *get_io_u(struct thread_data *, struct fio_file *); | |
493 | extern void put_io_u(struct thread_data *, struct io_u *); | |
494 | extern void ios_completed(struct thread_data *, struct io_completion_data *); | |
495 | extern void io_completed(struct thread_data *, struct io_u *, struct io_completion_data *); | |
496 | ||
497 | /* | |
498 | * io engine entry points | |
499 | */ | |
8c16d840 | 500 | extern int td_io_init(struct thread_data *); |
10ba535a JA |
501 | extern int td_io_prep(struct thread_data *, struct io_u *); |
502 | extern int td_io_queue(struct thread_data *, struct io_u *); | |
503 | extern int td_io_sync(struct thread_data *, struct fio_file *); | |
504 | extern int td_io_getevents(struct thread_data *, int, int, struct timespec *); | |
505 | ||
bbfd6b00 JA |
506 | /* |
507 | * This is a pretty crappy semaphore implementation, but with the use that fio | |
508 | * has (just signalling start/go conditions), it doesn't have to be better. | |
509 | * Naturally this would not work for any type of contended semaphore or | |
510 | * for real locking. | |
511 | */ | |
1056eaad | 512 | static inline void fio_sem_init(volatile int *sem, int val) |
bbfd6b00 JA |
513 | { |
514 | *sem = val; | |
515 | } | |
516 | ||
1056eaad | 517 | static inline void fio_sem_down(volatile int *sem) |
bbfd6b00 JA |
518 | { |
519 | while (*sem == 0) | |
520 | usleep(10000); | |
521 | ||
522 | (*sem)--; | |
523 | } | |
524 | ||
1056eaad | 525 | static inline void fio_sem_up(volatile int *sem) |
bbfd6b00 JA |
526 | { |
527 | (*sem)++; | |
528 | } | |
529 | ||
3b70d7e5 JA |
530 | /* |
531 | * If logging output to a file, stderr should go to both stderr and f_err | |
532 | */ | |
533 | #define log_err(args...) do { \ | |
534 | fprintf(f_err, ##args); \ | |
535 | if (f_err != stderr) \ | |
536 | fprintf(stderr, ##args); \ | |
537 | } while (0) | |
538 | ||
2866c82d JA |
539 | struct ioengine_ops { |
540 | char name[16]; | |
541 | int version; | |
542 | int flags; | |
ea2877a4 | 543 | int (*setup)(struct thread_data *); |
2866c82d JA |
544 | int (*init)(struct thread_data *); |
545 | int (*prep)(struct thread_data *, struct io_u *); | |
546 | int (*queue)(struct thread_data *, struct io_u *); | |
547 | int (*getevents)(struct thread_data *, int, int, struct timespec *); | |
548 | struct io_u *(*event)(struct thread_data *, int); | |
549 | int (*cancel)(struct thread_data *, struct io_u *); | |
550 | void (*cleanup)(struct thread_data *); | |
53cdc686 | 551 | int (*sync)(struct thread_data *, struct fio_file *); |
2866c82d JA |
552 | void *data; |
553 | void *dlhandle; | |
554 | }; | |
555 | ||
53cdc686 | 556 | #define FIO_IOOPS_VERSION 2 |
2866c82d JA |
557 | |
558 | extern struct ioengine_ops *load_ioengine(struct thread_data *, char *); | |
559 | extern void close_ioengine(struct thread_data *); | |
560 | ||
561 | /* | |
562 | * Mark unused variables passed to ops functions as unused, to silence gcc | |
563 | */ | |
564 | #define fio_unused __attribute((__unused__)) | |
565 | ||
34572e28 JA |
566 | #define for_each_td(td, i) \ |
567 | for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++) | |
53cdc686 | 568 | #define for_each_file(td, f, i) \ |
34572e28 | 569 | for ((i) = 0, (f) = &(td)->files[0]; (i) < (int) (td)->nr_files; (i)++, (f)++) |
53cdc686 | 570 | |
ebac4655 | 571 | #endif |