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> |
34cfcdaf | 13 | #include <string.h> |
ebac4655 JA |
14 | |
15 | #include "list.h" | |
16 | #include "md5.h" | |
17 | #include "crc32.h" | |
18 | #include "arch.h" | |
19 | #include "os.h" | |
20 | ||
b6959b55 | 21 | #ifdef FIO_HAVE_SYSLET |
a4f4fdd7 | 22 | #include "syslet.h" |
b6959b55 | 23 | #endif |
a4f4fdd7 | 24 | |
1e97cce9 JA |
25 | enum fio_ddir { |
26 | DDIR_READ = 0, | |
27 | DDIR_WRITE, | |
28 | DDIR_SYNC, | |
29 | }; | |
30 | ||
1c9e06ee JA |
31 | /* |
32 | * Use for maintaining statistics | |
33 | */ | |
ebac4655 | 34 | struct io_stat { |
ebac4655 JA |
35 | unsigned long max_val; |
36 | unsigned long min_val; | |
37 | unsigned long samples; | |
68704084 JA |
38 | |
39 | double mean; | |
40 | double S; | |
ebac4655 JA |
41 | }; |
42 | ||
1c9e06ee JA |
43 | /* |
44 | * A single data sample | |
45 | */ | |
ebac4655 JA |
46 | struct io_sample { |
47 | unsigned long time; | |
48 | unsigned long val; | |
1e97cce9 | 49 | enum fio_ddir ddir; |
ebac4655 JA |
50 | }; |
51 | ||
1c9e06ee JA |
52 | /* |
53 | * Dynamically growing data sample log | |
54 | */ | |
ebac4655 JA |
55 | struct io_log { |
56 | unsigned long nr_samples; | |
57 | unsigned long max_samples; | |
58 | struct io_sample *log; | |
59 | }; | |
60 | ||
1c9e06ee JA |
61 | /* |
62 | * When logging io actions, this matches a single sent io_u | |
63 | */ | |
ebac4655 JA |
64 | struct io_piece { |
65 | struct list_head list; | |
53cdc686 | 66 | struct fio_file *file; |
ebac4655 | 67 | unsigned long long offset; |
a4f4fdd7 | 68 | unsigned long len; |
1e97cce9 | 69 | enum fio_ddir ddir; |
ebac4655 JA |
70 | }; |
71 | ||
a4f4fdd7 JA |
72 | #ifdef FIO_HAVE_SYSLET |
73 | struct syslet_req { | |
74 | struct syslet_uatom atom; | |
a4f4fdd7 JA |
75 | long ret; |
76 | }; | |
77 | #endif | |
78 | ||
0c6e7517 JA |
79 | enum { |
80 | IO_U_F_FREE = 1 << 0, | |
81 | IO_U_F_FLIGHT = 1 << 1, | |
82 | }; | |
83 | ||
ebac4655 JA |
84 | /* |
85 | * The io unit | |
86 | */ | |
87 | struct io_u { | |
88 | union { | |
89 | #ifdef FIO_HAVE_LIBAIO | |
90 | struct iocb iocb; | |
91 | #endif | |
92 | #ifdef FIO_HAVE_POSIXAIO | |
93 | struct aiocb aiocb; | |
94 | #endif | |
95 | #ifdef FIO_HAVE_SGIO | |
96 | struct sg_io_hdr hdr; | |
a4f4fdd7 JA |
97 | #endif |
98 | #ifdef FIO_HAVE_SYSLET | |
a2e1b08a | 99 | struct syslet_req req; |
ebac4655 JA |
100 | #endif |
101 | }; | |
102 | struct timeval start_time; | |
103 | struct timeval issue_time; | |
104 | ||
1c9e06ee JA |
105 | /* |
106 | * Allocated/set buffer and length | |
107 | */ | |
6b9cea23 | 108 | void *buf; |
a4f4fdd7 | 109 | unsigned long buflen; |
ebac4655 JA |
110 | unsigned long long offset; |
111 | ||
1c9e06ee JA |
112 | /* |
113 | * IO engine state, may be different from above when we get | |
114 | * partial transfers / residual data counts | |
115 | */ | |
cec6b55d | 116 | void *xfer_buf; |
a4f4fdd7 | 117 | unsigned long xfer_buflen; |
cec6b55d | 118 | |
ebac4655 JA |
119 | unsigned int resid; |
120 | unsigned int error; | |
121 | ||
1e97cce9 | 122 | enum fio_ddir ddir; |
ebac4655 | 123 | |
dfd7bc2c JA |
124 | /* |
125 | * io engine private data | |
126 | */ | |
127 | union { | |
128 | unsigned int index; | |
129 | unsigned int seen; | |
130 | }; | |
131 | ||
0c6e7517 JA |
132 | unsigned int flags; |
133 | ||
53cdc686 JA |
134 | struct fio_file *file; |
135 | ||
ebac4655 JA |
136 | struct list_head list; |
137 | }; | |
138 | ||
36167d82 JA |
139 | /* |
140 | * io_ops->queue() return values | |
141 | */ | |
142 | enum { | |
143 | FIO_Q_COMPLETED = 0, /* completed sync */ | |
144 | FIO_Q_QUEUED = 1, /* queued, will complete async */ | |
755200a3 | 145 | FIO_Q_BUSY = 2, /* no more room, call ->commit() */ |
36167d82 JA |
146 | }; |
147 | ||
ebac4655 JA |
148 | #define FIO_HDR_MAGIC 0xf00baaef |
149 | ||
150 | enum { | |
1c9e06ee JA |
151 | VERIFY_NONE = 0, /* no verification */ |
152 | VERIFY_MD5, /* md5 sum data blocks */ | |
153 | VERIFY_CRC32, /* crc32 sum data blocks */ | |
ebac4655 JA |
154 | }; |
155 | ||
1c9e06ee JA |
156 | /* |
157 | * A header structure associated with each checksummed data block | |
158 | */ | |
ebac4655 JA |
159 | struct verify_header { |
160 | unsigned int fio_magic; | |
161 | unsigned int len; | |
162 | unsigned int verify_type; | |
163 | union { | |
164 | char md5_digest[MD5_HASH_WORDS * 4]; | |
165 | unsigned long crc32; | |
166 | }; | |
167 | }; | |
168 | ||
169 | struct group_run_stats { | |
9104f874 JA |
170 | unsigned long long max_run[2], min_run[2]; |
171 | unsigned long long max_bw[2], min_bw[2]; | |
e9b2a3fa | 172 | unsigned long long io_kb[2]; |
9104f874 | 173 | unsigned long long agg[2]; |
ebac4655 JA |
174 | }; |
175 | ||
e9c047a0 JA |
176 | /* |
177 | * What type of allocation to use for io buffers | |
178 | */ | |
179 | enum fio_memtype { | |
180 | MEM_MALLOC = 0, /* ordinary malloc */ | |
181 | MEM_SHM, /* use shared memory segments */ | |
74b025b0 | 182 | MEM_SHMHUGE, /* use shared memory segments with huge pages */ |
e9c047a0 | 183 | MEM_MMAP, /* use anonynomous mmap */ |
d0bdaf49 | 184 | MEM_MMAPHUGE, /* memory mapped huge file */ |
e9c047a0 JA |
185 | }; |
186 | ||
187 | /* | |
188 | * The type of object we are working on | |
189 | */ | |
190 | enum fio_filetype { | |
1c9e06ee JA |
191 | FIO_TYPE_FILE = 1, /* plain file */ |
192 | FIO_TYPE_BD, /* block device */ | |
193 | FIO_TYPE_CHAR, /* character device */ | |
e9c047a0 JA |
194 | }; |
195 | ||
2866c82d | 196 | enum fio_ioengine_flags { |
1c9e06ee JA |
197 | FIO_SYNCIO = 1 << 0, /* io engine has synchronous ->queue */ |
198 | FIO_CPUIO = 1 << 1, /* cpu burner, doesn't do real io */ | |
199 | FIO_MMAPIO = 1 << 2, /* uses memory mapped io */ | |
200 | FIO_RAWIO = 1 << 3, /* some sort of direct/raw io */ | |
201 | FIO_NETIO = 1 << 4, /* networked io */ | |
202 | FIO_NULLIO = 1 << 5, /* no real data transfer (cpu/null) */ | |
e9c047a0 JA |
203 | }; |
204 | ||
1c9e06ee JA |
205 | /* |
206 | * Each thread_data structure has a number of files associated with it, | |
207 | * this structure holds state information for a single file. | |
208 | */ | |
53cdc686 JA |
209 | struct fio_file { |
210 | /* | |
211 | * A file may not be a file descriptor, let the io engine decide | |
212 | */ | |
213 | union { | |
214 | unsigned long file_data; | |
e26f8f7a | 215 | int fd; |
53cdc686 JA |
216 | }; |
217 | char *file_name; | |
218 | void *mmap; | |
219 | unsigned long long file_size; | |
220 | unsigned long long real_file_size; | |
221 | unsigned long long file_offset; | |
222 | unsigned long long last_pos; | |
02bcaa8c | 223 | unsigned long long last_completed_pos; |
53cdc686 | 224 | |
1c9e06ee JA |
225 | /* |
226 | * block map for random io | |
227 | */ | |
53cdc686 JA |
228 | unsigned long *file_map; |
229 | unsigned int num_maps; | |
1c9e06ee | 230 | unsigned int last_free_lookup; |
9b031dc8 JA |
231 | |
232 | unsigned int unlink; | |
53cdc686 JA |
233 | }; |
234 | ||
079ad09b JA |
235 | struct thread_stat { |
236 | struct io_log *slat_log; | |
237 | struct io_log *clat_log; | |
238 | struct io_log *bw_log; | |
239 | ||
240 | /* | |
241 | * bandwidth and latency stats | |
242 | */ | |
243 | struct io_stat clat_stat[2]; /* completion latency */ | |
244 | struct io_stat slat_stat[2]; /* submission latency */ | |
245 | struct io_stat bw_stat[2]; /* bandwidth stats */ | |
246 | ||
247 | unsigned long long stat_io_bytes[2]; | |
248 | struct timeval stat_sample_time[2]; | |
249 | ||
250 | /* | |
251 | * fio system usage accounting | |
252 | */ | |
253 | struct rusage ru_start; | |
254 | struct rusage ru_end; | |
255 | unsigned long usr_time; | |
256 | unsigned long sys_time; | |
257 | unsigned long ctx; | |
258 | }; | |
259 | ||
71619dc2 JA |
260 | /* |
261 | * How many depth levels to log | |
262 | */ | |
263 | #define FIO_IO_U_MAP_NR 8 | |
ec118304 | 264 | #define FIO_IO_U_LAT_NR 12 |
71619dc2 | 265 | |
e9c047a0 JA |
266 | /* |
267 | * This describes a single thread/process executing a fio job. | |
268 | */ | |
ebac4655 | 269 | struct thread_data { |
61697c37 | 270 | char *description; |
b4692828 | 271 | char *name; |
ef899b63 | 272 | char *directory; |
13f8e2d2 | 273 | char *filename; |
ebac4655 JA |
274 | char verror[80]; |
275 | pthread_t thread; | |
276 | int thread_number; | |
277 | int groupid; | |
079ad09b | 278 | struct thread_stat ts; |
e9c047a0 | 279 | enum fio_filetype filetype; |
53cdc686 JA |
280 | struct fio_file *files; |
281 | unsigned int nr_files; | |
13f8e2d2 | 282 | unsigned int nr_uniq_files; |
53cdc686 | 283 | unsigned int next_file; |
ebac4655 | 284 | int error; |
ebac4655 JA |
285 | pid_t pid; |
286 | char *orig_buffer; | |
287 | size_t orig_buffer_size; | |
288 | volatile int terminate; | |
289 | volatile int runstate; | |
e9c047a0 | 290 | enum fio_ddir ddir; |
3d60d1ed | 291 | unsigned int iomix; |
ebac4655 | 292 | unsigned int ioprio; |
87dc1ab1 | 293 | unsigned int last_was_sync; |
e9c047a0 | 294 | |
9158d2f7 JA |
295 | unsigned int sequential; |
296 | unsigned int odirect; | |
297 | unsigned int invalidate_cache; | |
298 | unsigned int create_serialize; | |
299 | unsigned int create_fsync; | |
300 | unsigned int end_fsync; | |
301 | unsigned int sync_io; | |
302 | unsigned int verify; | |
303 | unsigned int use_thread; | |
304 | unsigned int unlink; | |
305 | unsigned int do_disk_util; | |
306 | unsigned int override_sync; | |
307 | unsigned int rand_repeatable; | |
308 | unsigned int write_lat_log; | |
309 | unsigned int write_bw_log; | |
bb8895e0 | 310 | unsigned int norandommap; |
690adba3 | 311 | unsigned int bs_unaligned; |
e9c047a0 | 312 | |
a00735e6 JA |
313 | unsigned int bs[2]; |
314 | unsigned int min_bs[2]; | |
315 | unsigned int max_bs[2]; | |
56bb17f2 | 316 | unsigned int hugepage_size; |
a00735e6 | 317 | unsigned int rw_min_bs; |
ebac4655 | 318 | unsigned int thinktime; |
48097d5c | 319 | unsigned int thinktime_spin; |
9c1f7434 | 320 | unsigned int thinktime_blocks; |
ebac4655 JA |
321 | unsigned int fsync_blocks; |
322 | unsigned int start_delay; | |
906c8d75 | 323 | unsigned long timeout; |
ebac4655 | 324 | unsigned int overwrite; |
ebac4655 | 325 | unsigned int bw_avg_time; |
ebac4655 | 326 | unsigned int loops; |
20dc95c4 JA |
327 | unsigned long long zone_size; |
328 | unsigned long long zone_skip; | |
e9c047a0 | 329 | enum fio_memtype mem_type; |
313cb206 JA |
330 | char *mmapfile; |
331 | int mmapfd; | |
ebac4655 JA |
332 | unsigned int stonewall; |
333 | unsigned int numjobs; | |
ebac4655 | 334 | unsigned int iodepth; |
e916b390 | 335 | unsigned int iodepth_low; |
ebac4655 | 336 | os_cpu_mask_t cpumask; |
aea47d44 | 337 | unsigned int iolog; |
843a7413 | 338 | unsigned int read_iolog; |
a6ccc7be JA |
339 | unsigned int rwmixcycle; |
340 | unsigned int rwmixread; | |
e1f36503 | 341 | unsigned int rwmixwrite; |
b6f4d880 | 342 | unsigned int nice; |
aea47d44 | 343 | |
076efc7c JA |
344 | char *read_iolog_file; |
345 | char *write_iolog_file; | |
843a7413 JA |
346 | void *iolog_buf; |
347 | FILE *iolog_f; | |
ebac4655 | 348 | |
da86774e | 349 | char *sysfs_root; |
da86774e JA |
350 | char *ioscheduler; |
351 | ||
6dfd46b9 JA |
352 | os_random_state_t bsrange_state; |
353 | os_random_state_t verify_state; | |
ebac4655 JA |
354 | |
355 | int shm_id; | |
356 | ||
e9c047a0 JA |
357 | /* |
358 | * IO engine hooks, contains everything needed to submit an io_u | |
359 | * to any of the available IO engines. | |
360 | */ | |
2866c82d | 361 | struct ioengine_ops *io_ops; |
ebac4655 | 362 | |
e9c047a0 JA |
363 | /* |
364 | * Current IO depth and list of free and busy io_u's. | |
365 | */ | |
ebac4655 | 366 | unsigned int cur_depth; |
71619dc2 | 367 | unsigned int io_u_map[FIO_IO_U_MAP_NR]; |
ec118304 | 368 | unsigned int io_u_lat[FIO_IO_U_LAT_NR]; |
71619dc2 | 369 | unsigned long total_io_u; |
ebac4655 JA |
370 | struct list_head io_u_freelist; |
371 | struct list_head io_u_busylist; | |
755200a3 | 372 | struct list_head io_u_requeues; |
ebac4655 | 373 | |
e9c047a0 JA |
374 | /* |
375 | * Rate state | |
376 | */ | |
ebac4655 JA |
377 | unsigned int rate; |
378 | unsigned int ratemin; | |
379 | unsigned int ratecycle; | |
380 | unsigned long rate_usec_cycle; | |
381 | long rate_pending_usleep; | |
382 | unsigned long rate_bytes; | |
383 | struct timeval lastrate; | |
384 | ||
385 | unsigned long runtime[2]; /* msec */ | |
386 | unsigned long long io_size; | |
53cdc686 JA |
387 | unsigned long long total_file_size; |
388 | unsigned long long start_offset; | |
ebac4655 JA |
389 | unsigned long long total_io_size; |
390 | ||
755200a3 | 391 | unsigned long io_issues[2]; |
9104f874 JA |
392 | unsigned long long io_blocks[2]; |
393 | unsigned long long io_bytes[2]; | |
9104f874 | 394 | unsigned long long this_io_bytes[2]; |
079ad09b | 395 | unsigned long long zone_bytes; |
bbfd6b00 | 396 | volatile int mutex; |
ebac4655 | 397 | |
e9c047a0 JA |
398 | /* |
399 | * State for random io, a bitmap of blocks done vs not done | |
400 | */ | |
6dfd46b9 | 401 | os_random_state_t random_state; |
ebac4655 | 402 | |
b990b5c0 JA |
403 | /* |
404 | * CPU "io" cycle burner | |
405 | */ | |
406 | unsigned int cpuload; | |
407 | unsigned int cpucycle; | |
408 | ||
ebac4655 JA |
409 | struct timeval start; /* start of this loop */ |
410 | struct timeval epoch; /* time job was started */ | |
69008999 | 411 | struct timeval end_time;/* time job ended */ |
ebac4655 | 412 | |
e9c047a0 JA |
413 | /* |
414 | * read/write mixed workload state | |
415 | */ | |
6dfd46b9 | 416 | os_random_state_t rwmix_state; |
a6ccc7be | 417 | struct timeval rwmix_switch; |
e9c047a0 | 418 | enum fio_ddir rwmix_ddir; |
a6ccc7be | 419 | |
4e0ba8af JA |
420 | /* |
421 | * Pre-run and post-run shell | |
422 | */ | |
423 | char *exec_prerun; | |
424 | char *exec_postrun; | |
425 | ||
e9c047a0 JA |
426 | /* |
427 | * IO historic logs | |
428 | */ | |
ebac4655 | 429 | struct list_head io_hist_list; |
aea47d44 | 430 | struct list_head io_log_list; |
433afcb4 JA |
431 | |
432 | /* | |
433 | * timeout handling | |
434 | */ | |
435 | struct timeval timeout_end; | |
436 | struct itimerval timer; | |
ebac4655 JA |
437 | }; |
438 | ||
433afcb4 JA |
439 | /* |
440 | * 30 second per-io_u timeout, with 5 second intervals to avoid resetting | |
441 | * the timer on each queue operation. | |
442 | */ | |
443 | #define IO_U_TIMEOUT_INC 5 | |
444 | #define IO_U_TIMEOUT 30 | |
445 | ||
b990b5c0 | 446 | #define __td_verror(td, err, msg) \ |
ebac4655 | 447 | do { \ |
19abcd3d JA |
448 | if ((td)->error) \ |
449 | break; \ | |
ebac4655 JA |
450 | int e = (err); \ |
451 | (td)->error = e; \ | |
b990b5c0 | 452 | snprintf(td->verror, sizeof(td->verror) - 1, "file:%s:%d, error=%s", __FILE__, __LINE__, (msg)); \ |
ebac4655 JA |
453 | } while (0) |
454 | ||
b990b5c0 JA |
455 | |
456 | #define td_verror(td, err) __td_verror((td), (err), strerror((err))) | |
457 | #define td_vmsg(td, err, msg) __td_verror((td), (err), (msg)) | |
458 | ||
ebac4655 JA |
459 | extern int exitall_on_terminate; |
460 | extern int thread_number; | |
461 | extern int shm_id; | |
462 | extern int groupid; | |
c6ae0a5b | 463 | extern int terse_output; |
eb8bbf48 JA |
464 | extern FILE *f_out; |
465 | extern FILE *f_err; | |
53cdc686 | 466 | extern int temp_stall_ts; |
1e97cce9 | 467 | extern unsigned long long mlock_size; |
ebac4655 JA |
468 | |
469 | extern struct thread_data *threads; | |
470 | ||
ebac4655 JA |
471 | #define td_read(td) ((td)->ddir == DDIR_READ) |
472 | #define td_write(td) ((td)->ddir == DDIR_WRITE) | |
3d60d1ed | 473 | #define td_rw(td) ((td)->iomix != 0) |
ebac4655 JA |
474 | |
475 | #define BLOCKS_PER_MAP (8 * sizeof(long)) | |
a00735e6 | 476 | #define TO_MAP_BLOCK(td, f, b) ((b) - ((f)->file_offset / (td)->rw_min_bs)) |
53cdc686 JA |
477 | #define RAND_MAP_IDX(td, f, b) (TO_MAP_BLOCK(td, f, b) / BLOCKS_PER_MAP) |
478 | #define RAND_MAP_BIT(td, f, b) (TO_MAP_BLOCK(td, f, b) & (BLOCKS_PER_MAP - 1)) | |
ebac4655 JA |
479 | |
480 | #define MAX_JOBS (1024) | |
481 | ||
87dc1ab1 JA |
482 | static inline int should_fsync(struct thread_data *td) |
483 | { | |
484 | if (td->last_was_sync) | |
485 | return 0; | |
486 | if (td->odirect) | |
487 | return 0; | |
488 | if (td_write(td) || td_rw(td) || td->override_sync) | |
489 | return 1; | |
490 | ||
491 | return 0; | |
492 | } | |
493 | ||
1c9e06ee JA |
494 | /* |
495 | * Disk utils as read in /sys/block/<dev>/stat | |
496 | */ | |
ebac4655 JA |
497 | struct disk_util_stat { |
498 | unsigned ios[2]; | |
499 | unsigned merges[2]; | |
500 | unsigned long long sectors[2]; | |
501 | unsigned ticks[2]; | |
502 | unsigned io_ticks; | |
503 | unsigned time_in_queue; | |
504 | }; | |
505 | ||
1c9e06ee JA |
506 | /* |
507 | * Per-device disk util management | |
508 | */ | |
ebac4655 JA |
509 | struct disk_util { |
510 | struct list_head list; | |
511 | ||
512 | char *name; | |
513 | char path[256]; | |
514 | dev_t dev; | |
515 | ||
516 | struct disk_util_stat dus; | |
517 | struct disk_util_stat last_dus; | |
518 | ||
519 | unsigned long msec; | |
520 | struct timeval time; | |
521 | }; | |
522 | ||
1c9e06ee | 523 | /* |
97601024 | 524 | * Callback for io completion |
1c9e06ee | 525 | */ |
97601024 | 526 | typedef int (endio_handler)(struct io_u *); |
ebac4655 JA |
527 | |
528 | #define DISK_UTIL_MSEC (250) | |
529 | ||
6a0106a0 JA |
530 | #ifndef min |
531 | #define min(a, b) ((a) < (b) ? (a) : (b)) | |
532 | #endif | |
a00735e6 JA |
533 | #ifndef max |
534 | #define max(a, b) ((a) > (b) ? (a) : (b)) | |
535 | #endif | |
6a0106a0 | 536 | |
6796209a JA |
537 | /* |
538 | * Log exports | |
539 | */ | |
72cb971b | 540 | extern int __must_check read_iolog_get(struct thread_data *, struct io_u *); |
6796209a | 541 | extern void write_iolog_put(struct thread_data *, struct io_u *); |
72cb971b | 542 | extern int __must_check init_iolog(struct thread_data *td); |
6796209a JA |
543 | extern void log_io_piece(struct thread_data *, struct io_u *); |
544 | extern void prune_io_piece_log(struct thread_data *); | |
545 | extern void write_iolog_close(struct thread_data *); | |
546 | ||
547 | /* | |
548 | * Logging | |
549 | */ | |
1e97cce9 JA |
550 | extern void add_clat_sample(struct thread_data *, enum fio_ddir, unsigned long); |
551 | extern void add_slat_sample(struct thread_data *, enum fio_ddir, unsigned long); | |
552 | extern void add_bw_sample(struct thread_data *, enum fio_ddir, struct timeval *); | |
6796209a JA |
553 | extern void show_run_stats(void); |
554 | extern void init_disk_util(struct thread_data *); | |
555 | extern void update_rusage_stat(struct thread_data *); | |
556 | extern void update_io_ticks(void); | |
557 | extern void disk_util_timer_arm(void); | |
8914a9d8 JA |
558 | extern void setup_log(struct io_log **); |
559 | extern void finish_log(struct thread_data *, struct io_log *, const char *); | |
bb3884d8 | 560 | extern void __finish_log(struct io_log *, const char *); |
8914a9d8 | 561 | extern int setup_rate(struct thread_data *); |
bb3884d8 JA |
562 | extern struct io_log *agg_io_log[2]; |
563 | extern int write_bw_log; | |
564 | extern void add_agg_sample(unsigned long, enum fio_ddir); | |
6796209a JA |
565 | |
566 | /* | |
567 | * Time functions | |
568 | */ | |
569 | extern unsigned long utime_since(struct timeval *, struct timeval *); | |
69008999 | 570 | extern unsigned long utime_since_now(struct timeval *); |
6796209a JA |
571 | extern unsigned long mtime_since(struct timeval *, struct timeval *); |
572 | extern unsigned long mtime_since_now(struct timeval *); | |
573 | extern unsigned long time_since_now(struct timeval *); | |
263e529f | 574 | extern unsigned long mtime_since_genesis(void); |
b990b5c0 | 575 | extern void __usec_sleep(unsigned int); |
6796209a | 576 | extern void usec_sleep(struct thread_data *, unsigned long); |
a00735e6 | 577 | extern void rate_throttle(struct thread_data *, unsigned long, unsigned int, int); |
6043c579 | 578 | extern void fill_start_time(struct timeval *); |
02bcaa8c | 579 | extern void fio_gettime(struct timeval *, void *); |
a2f77c9f | 580 | extern void set_genesis_time(void); |
6796209a | 581 | |
8914a9d8 JA |
582 | /* |
583 | * Init functions | |
584 | */ | |
72cb971b JA |
585 | extern int __must_check parse_options(int, char **); |
586 | extern int __must_check init_random_state(struct thread_data *); | |
8914a9d8 | 587 | |
53cdc686 JA |
588 | /* |
589 | * File setup/shutdown | |
590 | */ | |
591 | extern void close_files(struct thread_data *); | |
b2fdda43 JA |
592 | extern int __must_check setup_files(struct thread_data *); |
593 | extern int __must_check open_files(struct thread_data *); | |
594 | extern int __must_check file_invalidate_cache(struct thread_data *, struct fio_file *); | |
53cdc686 | 595 | |
263e529f JA |
596 | /* |
597 | * ETA/status stuff | |
598 | */ | |
599 | extern void print_thread_status(void); | |
600 | extern void print_status_init(int); | |
601 | ||
602 | /* | |
603 | * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it | |
604 | * will never back again. It may cycle between running/verififying/fsyncing. | |
605 | * Once the thread reaches TD_EXITED, it is just waiting for the core to | |
606 | * reap it. | |
607 | */ | |
608 | enum { | |
609 | TD_NOT_CREATED = 0, | |
610 | TD_CREATED, | |
611 | TD_INITIALIZED, | |
612 | TD_RUNNING, | |
613 | TD_VERIFYING, | |
614 | TD_FSYNCING, | |
615 | TD_EXITED, | |
616 | TD_REAPED, | |
617 | }; | |
618 | ||
e29d1b70 JA |
619 | /* |
620 | * Verify helpers | |
621 | */ | |
622 | extern void populate_verify_io_u(struct thread_data *, struct io_u *); | |
b2fdda43 JA |
623 | extern int __must_check get_next_verify(struct thread_data *td, struct io_u *); |
624 | extern int __must_check verify_io_u(struct io_u *); | |
e29d1b70 | 625 | |
2f9ade3c JA |
626 | /* |
627 | * Memory helpers | |
628 | */ | |
b2fdda43 | 629 | extern int __must_check fio_pin_memory(void); |
2f9ade3c | 630 | extern void fio_unpin_memory(void); |
b2fdda43 | 631 | extern int __must_check allocate_io_mem(struct thread_data *); |
2f9ade3c JA |
632 | extern void free_io_mem(struct thread_data *); |
633 | ||
10ba535a JA |
634 | /* |
635 | * io unit handling | |
636 | */ | |
637 | #define queue_full(td) list_empty(&(td)->io_u_freelist) | |
638 | extern struct io_u *__get_io_u(struct thread_data *); | |
3d7c391d | 639 | extern struct io_u *get_io_u(struct thread_data *); |
10ba535a | 640 | extern void put_io_u(struct thread_data *, struct io_u *); |
755200a3 | 641 | extern void requeue_io_u(struct thread_data *, struct io_u **); |
b2fdda43 JA |
642 | extern long __must_check io_u_sync_complete(struct thread_data *, struct io_u *, endio_handler *); |
643 | extern long __must_check io_u_queued_complete(struct thread_data *, int, endio_handler *); | |
7e77dd02 | 644 | extern void io_u_queued(struct thread_data *, struct io_u *); |
433afcb4 JA |
645 | extern void io_u_init_timeout(void); |
646 | extern void io_u_set_timeout(struct thread_data *); | |
10ba535a JA |
647 | |
648 | /* | |
649 | * io engine entry points | |
650 | */ | |
b2fdda43 JA |
651 | extern int __must_check td_io_init(struct thread_data *); |
652 | extern int __must_check td_io_prep(struct thread_data *, struct io_u *); | |
653 | extern int __must_check td_io_queue(struct thread_data *, struct io_u *); | |
654 | extern int __must_check td_io_sync(struct thread_data *, struct fio_file *); | |
655 | extern int __must_check td_io_getevents(struct thread_data *, int, int, struct timespec *); | |
656 | extern int __must_check td_io_commit(struct thread_data *); | |
10ba535a | 657 | |
bbfd6b00 JA |
658 | /* |
659 | * This is a pretty crappy semaphore implementation, but with the use that fio | |
660 | * has (just signalling start/go conditions), it doesn't have to be better. | |
661 | * Naturally this would not work for any type of contended semaphore or | |
662 | * for real locking. | |
663 | */ | |
1056eaad | 664 | static inline void fio_sem_init(volatile int *sem, int val) |
bbfd6b00 JA |
665 | { |
666 | *sem = val; | |
667 | } | |
668 | ||
1056eaad | 669 | static inline void fio_sem_down(volatile int *sem) |
bbfd6b00 JA |
670 | { |
671 | while (*sem == 0) | |
672 | usleep(10000); | |
673 | ||
674 | (*sem)--; | |
675 | } | |
676 | ||
1056eaad | 677 | static inline void fio_sem_up(volatile int *sem) |
bbfd6b00 JA |
678 | { |
679 | (*sem)++; | |
680 | } | |
681 | ||
3b70d7e5 JA |
682 | /* |
683 | * If logging output to a file, stderr should go to both stderr and f_err | |
684 | */ | |
685 | #define log_err(args...) do { \ | |
686 | fprintf(f_err, ##args); \ | |
687 | if (f_err != stderr) \ | |
688 | fprintf(stderr, ##args); \ | |
689 | } while (0) | |
690 | ||
2866c82d | 691 | struct ioengine_ops { |
5f350952 | 692 | struct list_head list; |
2866c82d JA |
693 | char name[16]; |
694 | int version; | |
695 | int flags; | |
ea2877a4 | 696 | int (*setup)(struct thread_data *); |
2866c82d JA |
697 | int (*init)(struct thread_data *); |
698 | int (*prep)(struct thread_data *, struct io_u *); | |
699 | int (*queue)(struct thread_data *, struct io_u *); | |
755200a3 | 700 | int (*commit)(struct thread_data *); |
2866c82d JA |
701 | int (*getevents)(struct thread_data *, int, int, struct timespec *); |
702 | struct io_u *(*event)(struct thread_data *, int); | |
703 | int (*cancel)(struct thread_data *, struct io_u *); | |
704 | void (*cleanup)(struct thread_data *); | |
2866c82d JA |
705 | void *data; |
706 | void *dlhandle; | |
36167d82 | 707 | unsigned long priv; |
2866c82d JA |
708 | }; |
709 | ||
755200a3 | 710 | #define FIO_IOOPS_VERSION 5 |
2866c82d | 711 | |
b4692828 | 712 | extern struct ioengine_ops *load_ioengine(struct thread_data *, const char *); |
b2fdda43 | 713 | extern void register_ioengine(struct ioengine_ops *); |
5f350952 | 714 | extern void unregister_ioengine(struct ioengine_ops *); |
2866c82d JA |
715 | extern void close_ioengine(struct thread_data *); |
716 | ||
717 | /* | |
718 | * Mark unused variables passed to ops functions as unused, to silence gcc | |
719 | */ | |
720 | #define fio_unused __attribute((__unused__)) | |
5f350952 JA |
721 | #define fio_init __attribute__((constructor)) |
722 | #define fio_exit __attribute__((destructor)) | |
2866c82d | 723 | |
34572e28 JA |
724 | #define for_each_td(td, i) \ |
725 | for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++) | |
53cdc686 | 726 | #define for_each_file(td, f, i) \ |
34572e28 | 727 | for ((i) = 0, (f) = &(td)->files[0]; (i) < (int) (td)->nr_files; (i)++, (f)++) |
53cdc686 | 728 | |
0032bf9f JA |
729 | #define fio_assert(td, cond) do { \ |
730 | if (!(cond)) { \ | |
340fd243 | 731 | int *__foo = NULL; \ |
0032bf9f JA |
732 | fprintf(stderr, "file:%s:%d, assert %s failed\n", __FILE__, __LINE__, #cond); \ |
733 | (td)->runstate = TD_EXITED; \ | |
437c9b71 | 734 | (td)->error = EFAULT; \ |
340fd243 | 735 | *__foo = 0; \ |
0032bf9f JA |
736 | } \ |
737 | } while (0) | |
738 | ||
ebac4655 | 739 | #endif |