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 | ||
413dd459 | 31 | enum td_ddir { |
b1ec1da6 JA |
32 | TD_DDIR_READ = 1 << 0, |
33 | TD_DDIR_WRITE = 1 << 1, | |
34 | TD_DDIR_RAND = 1 << 2, | |
35 | TD_DDIR_RW = TD_DDIR_READ | TD_DDIR_WRITE, | |
36 | TD_DDIR_RANDREAD = TD_DDIR_READ | TD_DDIR_RAND, | |
7ff1c14b | 37 | TD_DDIR_RANDWRITE = TD_DDIR_WRITE | TD_DDIR_RAND, |
b1ec1da6 | 38 | TD_DDIR_RANDRW = TD_DDIR_RW | TD_DDIR_RAND, |
413dd459 JA |
39 | }; |
40 | ||
1c9e06ee JA |
41 | /* |
42 | * Use for maintaining statistics | |
43 | */ | |
ebac4655 | 44 | struct io_stat { |
ebac4655 JA |
45 | unsigned long max_val; |
46 | unsigned long min_val; | |
47 | unsigned long samples; | |
68704084 JA |
48 | |
49 | double mean; | |
50 | double S; | |
ebac4655 JA |
51 | }; |
52 | ||
1c9e06ee JA |
53 | /* |
54 | * A single data sample | |
55 | */ | |
ebac4655 JA |
56 | struct io_sample { |
57 | unsigned long time; | |
58 | unsigned long val; | |
1e97cce9 | 59 | enum fio_ddir ddir; |
ebac4655 JA |
60 | }; |
61 | ||
1c9e06ee JA |
62 | /* |
63 | * Dynamically growing data sample log | |
64 | */ | |
ebac4655 JA |
65 | struct io_log { |
66 | unsigned long nr_samples; | |
67 | unsigned long max_samples; | |
68 | struct io_sample *log; | |
69 | }; | |
70 | ||
1c9e06ee JA |
71 | /* |
72 | * When logging io actions, this matches a single sent io_u | |
73 | */ | |
ebac4655 JA |
74 | struct io_piece { |
75 | struct list_head list; | |
53cdc686 | 76 | struct fio_file *file; |
ebac4655 | 77 | unsigned long long offset; |
a4f4fdd7 | 78 | unsigned long len; |
1e97cce9 | 79 | enum fio_ddir ddir; |
ebac4655 JA |
80 | }; |
81 | ||
a4f4fdd7 JA |
82 | #ifdef FIO_HAVE_SYSLET |
83 | struct syslet_req { | |
5b38ee84 JA |
84 | struct syslet_uatom atom; /* the atom to submit */ |
85 | struct syslet_uatom *head; /* head of the sequence */ | |
86 | long ret; /* syscall return value */ | |
a4f4fdd7 JA |
87 | }; |
88 | #endif | |
89 | ||
0c6e7517 JA |
90 | enum { |
91 | IO_U_F_FREE = 1 << 0, | |
92 | IO_U_F_FLIGHT = 1 << 1, | |
93 | }; | |
94 | ||
ebac4655 JA |
95 | /* |
96 | * The io unit | |
97 | */ | |
98 | struct io_u { | |
99 | union { | |
100 | #ifdef FIO_HAVE_LIBAIO | |
101 | struct iocb iocb; | |
102 | #endif | |
103 | #ifdef FIO_HAVE_POSIXAIO | |
104 | struct aiocb aiocb; | |
105 | #endif | |
106 | #ifdef FIO_HAVE_SGIO | |
107 | struct sg_io_hdr hdr; | |
a4f4fdd7 JA |
108 | #endif |
109 | #ifdef FIO_HAVE_SYSLET | |
a2e1b08a | 110 | struct syslet_req req; |
ebac4655 JA |
111 | #endif |
112 | }; | |
113 | struct timeval start_time; | |
114 | struct timeval issue_time; | |
115 | ||
1c9e06ee JA |
116 | /* |
117 | * Allocated/set buffer and length | |
118 | */ | |
6b9cea23 | 119 | void *buf; |
a4f4fdd7 | 120 | unsigned long buflen; |
ebac4655 JA |
121 | unsigned long long offset; |
122 | ||
1c9e06ee JA |
123 | /* |
124 | * IO engine state, may be different from above when we get | |
125 | * partial transfers / residual data counts | |
126 | */ | |
cec6b55d | 127 | void *xfer_buf; |
a4f4fdd7 | 128 | unsigned long xfer_buflen; |
cec6b55d | 129 | |
ebac4655 JA |
130 | unsigned int resid; |
131 | unsigned int error; | |
132 | ||
1e97cce9 | 133 | enum fio_ddir ddir; |
ebac4655 | 134 | |
dfd7bc2c JA |
135 | /* |
136 | * io engine private data | |
137 | */ | |
138 | union { | |
139 | unsigned int index; | |
140 | unsigned int seen; | |
141 | }; | |
142 | ||
0c6e7517 JA |
143 | unsigned int flags; |
144 | ||
53cdc686 JA |
145 | struct fio_file *file; |
146 | ||
ebac4655 | 147 | struct list_head list; |
d7762cf8 JA |
148 | |
149 | /* | |
150 | * Callback for io completion | |
151 | */ | |
152 | int (*end_io)(struct io_u *); | |
ebac4655 JA |
153 | }; |
154 | ||
36167d82 JA |
155 | /* |
156 | * io_ops->queue() return values | |
157 | */ | |
158 | enum { | |
159 | FIO_Q_COMPLETED = 0, /* completed sync */ | |
160 | FIO_Q_QUEUED = 1, /* queued, will complete async */ | |
755200a3 | 161 | FIO_Q_BUSY = 2, /* no more room, call ->commit() */ |
36167d82 JA |
162 | }; |
163 | ||
ebac4655 JA |
164 | #define FIO_HDR_MAGIC 0xf00baaef |
165 | ||
166 | enum { | |
1c9e06ee JA |
167 | VERIFY_NONE = 0, /* no verification */ |
168 | VERIFY_MD5, /* md5 sum data blocks */ | |
169 | VERIFY_CRC32, /* crc32 sum data blocks */ | |
ebac4655 JA |
170 | }; |
171 | ||
1c9e06ee JA |
172 | /* |
173 | * A header structure associated with each checksummed data block | |
174 | */ | |
ebac4655 JA |
175 | struct verify_header { |
176 | unsigned int fio_magic; | |
177 | unsigned int len; | |
178 | unsigned int verify_type; | |
179 | union { | |
180 | char md5_digest[MD5_HASH_WORDS * 4]; | |
181 | unsigned long crc32; | |
182 | }; | |
183 | }; | |
184 | ||
185 | struct group_run_stats { | |
9104f874 JA |
186 | unsigned long long max_run[2], min_run[2]; |
187 | unsigned long long max_bw[2], min_bw[2]; | |
e9b2a3fa | 188 | unsigned long long io_kb[2]; |
9104f874 | 189 | unsigned long long agg[2]; |
ebac4655 JA |
190 | }; |
191 | ||
e9c047a0 JA |
192 | /* |
193 | * What type of allocation to use for io buffers | |
194 | */ | |
195 | enum fio_memtype { | |
196 | MEM_MALLOC = 0, /* ordinary malloc */ | |
197 | MEM_SHM, /* use shared memory segments */ | |
74b025b0 | 198 | MEM_SHMHUGE, /* use shared memory segments with huge pages */ |
e9c047a0 | 199 | MEM_MMAP, /* use anonynomous mmap */ |
d0bdaf49 | 200 | MEM_MMAPHUGE, /* memory mapped huge file */ |
e9c047a0 JA |
201 | }; |
202 | ||
203 | /* | |
204 | * The type of object we are working on | |
205 | */ | |
206 | enum fio_filetype { | |
1c9e06ee JA |
207 | FIO_TYPE_FILE = 1, /* plain file */ |
208 | FIO_TYPE_BD, /* block device */ | |
209 | FIO_TYPE_CHAR, /* character device */ | |
e9c047a0 JA |
210 | }; |
211 | ||
2866c82d | 212 | enum fio_ioengine_flags { |
1c9e06ee JA |
213 | FIO_SYNCIO = 1 << 0, /* io engine has synchronous ->queue */ |
214 | FIO_CPUIO = 1 << 1, /* cpu burner, doesn't do real io */ | |
215 | FIO_MMAPIO = 1 << 2, /* uses memory mapped io */ | |
216 | FIO_RAWIO = 1 << 3, /* some sort of direct/raw io */ | |
a9defc9a JB |
217 | FIO_DISKLESSIO = 1 << 4, /* no disk involved */ |
218 | FIO_SELFOPEN = 1 << 5, /* opens its own devices */ | |
e9c047a0 JA |
219 | }; |
220 | ||
1c9e06ee JA |
221 | /* |
222 | * Each thread_data structure has a number of files associated with it, | |
223 | * this structure holds state information for a single file. | |
224 | */ | |
53cdc686 JA |
225 | struct fio_file { |
226 | /* | |
227 | * A file may not be a file descriptor, let the io engine decide | |
228 | */ | |
229 | union { | |
230 | unsigned long file_data; | |
e26f8f7a | 231 | int fd; |
53cdc686 JA |
232 | }; |
233 | char *file_name; | |
234 | void *mmap; | |
235 | unsigned long long file_size; | |
236 | unsigned long long real_file_size; | |
237 | unsigned long long file_offset; | |
238 | unsigned long long last_pos; | |
02bcaa8c | 239 | unsigned long long last_completed_pos; |
53cdc686 | 240 | |
1c9e06ee JA |
241 | /* |
242 | * block map for random io | |
243 | */ | |
53cdc686 JA |
244 | unsigned long *file_map; |
245 | unsigned int num_maps; | |
1c9e06ee | 246 | unsigned int last_free_lookup; |
9b031dc8 JA |
247 | |
248 | unsigned int unlink; | |
53cdc686 JA |
249 | }; |
250 | ||
b2560f3c JA |
251 | /* |
252 | * How many depth levels to log | |
253 | */ | |
254 | #define FIO_IO_U_MAP_NR 8 | |
255 | #define FIO_IO_U_LAT_NR 12 | |
256 | ||
079ad09b | 257 | struct thread_stat { |
756867bd JA |
258 | char *name; |
259 | char *verror; | |
260 | int error; | |
261 | int groupid; | |
262 | pid_t pid; | |
263 | char *description; | |
6586ee89 | 264 | int members; |
756867bd | 265 | |
079ad09b JA |
266 | struct io_log *slat_log; |
267 | struct io_log *clat_log; | |
268 | struct io_log *bw_log; | |
269 | ||
270 | /* | |
271 | * bandwidth and latency stats | |
272 | */ | |
273 | struct io_stat clat_stat[2]; /* completion latency */ | |
274 | struct io_stat slat_stat[2]; /* submission latency */ | |
275 | struct io_stat bw_stat[2]; /* bandwidth stats */ | |
276 | ||
277 | unsigned long long stat_io_bytes[2]; | |
278 | struct timeval stat_sample_time[2]; | |
279 | ||
280 | /* | |
281 | * fio system usage accounting | |
282 | */ | |
283 | struct rusage ru_start; | |
284 | struct rusage ru_end; | |
285 | unsigned long usr_time; | |
286 | unsigned long sys_time; | |
287 | unsigned long ctx; | |
079ad09b | 288 | |
b2560f3c JA |
289 | /* |
290 | * IO depth and latency stats | |
291 | */ | |
292 | unsigned int io_u_map[FIO_IO_U_MAP_NR]; | |
293 | unsigned int io_u_lat[FIO_IO_U_LAT_NR]; | |
294 | unsigned long total_io_u; | |
756867bd JA |
295 | |
296 | unsigned long long io_bytes[2]; | |
297 | unsigned long runtime[2]; | |
298 | unsigned long total_run_time; | |
b2560f3c | 299 | }; |
71619dc2 | 300 | |
e9c047a0 JA |
301 | /* |
302 | * This describes a single thread/process executing a fio job. | |
303 | */ | |
ebac4655 | 304 | struct thread_data { |
b1ec1da6 | 305 | int pad; |
61697c37 | 306 | char *description; |
b4692828 | 307 | char *name; |
ef899b63 | 308 | char *directory; |
13f8e2d2 | 309 | char *filename; |
480936dd | 310 | char verror[128]; |
ebac4655 JA |
311 | pthread_t thread; |
312 | int thread_number; | |
313 | int groupid; | |
756867bd | 314 | struct thread_stat ts; |
e9c047a0 | 315 | enum fio_filetype filetype; |
53cdc686 JA |
316 | struct fio_file *files; |
317 | unsigned int nr_files; | |
bdb4e2e9 | 318 | unsigned int nr_open_files; |
13f8e2d2 | 319 | unsigned int nr_uniq_files; |
0aabe160 JA |
320 | union { |
321 | unsigned int next_file; | |
322 | os_random_state_t next_file_state; | |
323 | }; | |
ebac4655 | 324 | int error; |
ebac4655 JA |
325 | pid_t pid; |
326 | char *orig_buffer; | |
327 | size_t orig_buffer_size; | |
328 | volatile int terminate; | |
329 | volatile int runstate; | |
413dd459 | 330 | enum td_ddir td_ddir; |
ebac4655 | 331 | unsigned int ioprio; |
87dc1ab1 | 332 | unsigned int last_was_sync; |
e9c047a0 | 333 | |
9158d2f7 JA |
334 | unsigned int odirect; |
335 | unsigned int invalidate_cache; | |
336 | unsigned int create_serialize; | |
337 | unsigned int create_fsync; | |
338 | unsigned int end_fsync; | |
339 | unsigned int sync_io; | |
340 | unsigned int verify; | |
341 | unsigned int use_thread; | |
342 | unsigned int unlink; | |
343 | unsigned int do_disk_util; | |
344 | unsigned int override_sync; | |
345 | unsigned int rand_repeatable; | |
346 | unsigned int write_lat_log; | |
347 | unsigned int write_bw_log; | |
bb8895e0 | 348 | unsigned int norandommap; |
690adba3 | 349 | unsigned int bs_unaligned; |
e9c047a0 | 350 | |
a00735e6 JA |
351 | unsigned int bs[2]; |
352 | unsigned int min_bs[2]; | |
353 | unsigned int max_bs[2]; | |
56bb17f2 | 354 | unsigned int hugepage_size; |
a00735e6 | 355 | unsigned int rw_min_bs; |
ebac4655 | 356 | unsigned int thinktime; |
48097d5c | 357 | unsigned int thinktime_spin; |
9c1f7434 | 358 | unsigned int thinktime_blocks; |
ebac4655 JA |
359 | unsigned int fsync_blocks; |
360 | unsigned int start_delay; | |
906c8d75 | 361 | unsigned long timeout; |
ebac4655 | 362 | unsigned int overwrite; |
ebac4655 | 363 | unsigned int bw_avg_time; |
ebac4655 | 364 | unsigned int loops; |
20dc95c4 JA |
365 | unsigned long long zone_size; |
366 | unsigned long long zone_skip; | |
e9c047a0 | 367 | enum fio_memtype mem_type; |
313cb206 JA |
368 | char *mmapfile; |
369 | int mmapfd; | |
ebac4655 JA |
370 | unsigned int stonewall; |
371 | unsigned int numjobs; | |
ebac4655 | 372 | unsigned int iodepth; |
e916b390 | 373 | unsigned int iodepth_low; |
cb5ab512 | 374 | unsigned int iodepth_batch; |
ebac4655 | 375 | os_cpu_mask_t cpumask; |
aea47d44 | 376 | unsigned int iolog; |
843a7413 | 377 | unsigned int read_iolog; |
a6ccc7be JA |
378 | unsigned int rwmixcycle; |
379 | unsigned int rwmixread; | |
e1f36503 | 380 | unsigned int rwmixwrite; |
b6f4d880 | 381 | unsigned int nice; |
0aabe160 | 382 | unsigned int file_service_type; |
b2560f3c | 383 | unsigned int group_reporting; |
aea47d44 | 384 | |
076efc7c JA |
385 | char *read_iolog_file; |
386 | char *write_iolog_file; | |
843a7413 JA |
387 | void *iolog_buf; |
388 | FILE *iolog_f; | |
ebac4655 | 389 | |
da86774e | 390 | char *sysfs_root; |
da86774e JA |
391 | char *ioscheduler; |
392 | ||
6dfd46b9 JA |
393 | os_random_state_t bsrange_state; |
394 | os_random_state_t verify_state; | |
ebac4655 JA |
395 | |
396 | int shm_id; | |
397 | ||
e9c047a0 JA |
398 | /* |
399 | * IO engine hooks, contains everything needed to submit an io_u | |
400 | * to any of the available IO engines. | |
401 | */ | |
2866c82d | 402 | struct ioengine_ops *io_ops; |
ebac4655 | 403 | |
e9c047a0 JA |
404 | /* |
405 | * Current IO depth and list of free and busy io_u's. | |
406 | */ | |
ebac4655 JA |
407 | unsigned int cur_depth; |
408 | struct list_head io_u_freelist; | |
409 | struct list_head io_u_busylist; | |
755200a3 | 410 | struct list_head io_u_requeues; |
cb5ab512 | 411 | unsigned int io_u_queued; |
ebac4655 | 412 | |
e9c047a0 JA |
413 | /* |
414 | * Rate state | |
415 | */ | |
ebac4655 JA |
416 | unsigned int rate; |
417 | unsigned int ratemin; | |
418 | unsigned int ratecycle; | |
419 | unsigned long rate_usec_cycle; | |
420 | long rate_pending_usleep; | |
421 | unsigned long rate_bytes; | |
422 | struct timeval lastrate; | |
423 | ||
ebac4655 | 424 | unsigned long long io_size; |
53cdc686 JA |
425 | unsigned long long total_file_size; |
426 | unsigned long long start_offset; | |
ebac4655 JA |
427 | unsigned long long total_io_size; |
428 | ||
755200a3 | 429 | unsigned long io_issues[2]; |
9104f874 JA |
430 | unsigned long long io_blocks[2]; |
431 | unsigned long long io_bytes[2]; | |
9104f874 | 432 | unsigned long long this_io_bytes[2]; |
079ad09b | 433 | unsigned long long zone_bytes; |
bbfd6b00 | 434 | volatile int mutex; |
ebac4655 | 435 | |
e9c047a0 JA |
436 | /* |
437 | * State for random io, a bitmap of blocks done vs not done | |
438 | */ | |
6dfd46b9 | 439 | os_random_state_t random_state; |
ebac4655 | 440 | |
b990b5c0 JA |
441 | /* |
442 | * CPU "io" cycle burner | |
443 | */ | |
444 | unsigned int cpuload; | |
445 | unsigned int cpucycle; | |
446 | ||
ebac4655 JA |
447 | struct timeval start; /* start of this loop */ |
448 | struct timeval epoch; /* time job was started */ | |
449 | ||
e9c047a0 JA |
450 | /* |
451 | * read/write mixed workload state | |
452 | */ | |
6dfd46b9 | 453 | os_random_state_t rwmix_state; |
a6ccc7be | 454 | struct timeval rwmix_switch; |
e9c047a0 | 455 | enum fio_ddir rwmix_ddir; |
a6ccc7be | 456 | |
4e0ba8af JA |
457 | /* |
458 | * Pre-run and post-run shell | |
459 | */ | |
460 | char *exec_prerun; | |
461 | char *exec_postrun; | |
462 | ||
e9c047a0 JA |
463 | /* |
464 | * IO historic logs | |
465 | */ | |
ebac4655 | 466 | struct list_head io_hist_list; |
aea47d44 | 467 | struct list_head io_log_list; |
433afcb4 JA |
468 | |
469 | /* | |
470 | * timeout handling | |
471 | */ | |
472 | struct timeval timeout_end; | |
473 | struct itimerval timer; | |
ebac4655 JA |
474 | }; |
475 | ||
0aabe160 JA |
476 | /* |
477 | * roundrobin available files, or choose one at random. | |
478 | */ | |
479 | enum { | |
480 | FIO_FSERVICE_RANDOM = 1, | |
481 | FIO_FSERVICE_RR = 2, | |
482 | }; | |
483 | ||
433afcb4 JA |
484 | /* |
485 | * 30 second per-io_u timeout, with 5 second intervals to avoid resetting | |
486 | * the timer on each queue operation. | |
487 | */ | |
488 | #define IO_U_TIMEOUT_INC 5 | |
489 | #define IO_U_TIMEOUT 30 | |
490 | ||
e1161c32 | 491 | #define __td_verror(td, err, msg, func) \ |
ebac4655 | 492 | do { \ |
19abcd3d JA |
493 | if ((td)->error) \ |
494 | break; \ | |
ebac4655 JA |
495 | int e = (err); \ |
496 | (td)->error = e; \ | |
e1161c32 | 497 | snprintf(td->verror, sizeof(td->verror) - 1, "file:%s:%d, func=%s, error=%s", __FILE__, __LINE__, (func), (msg)); \ |
ebac4655 JA |
498 | } while (0) |
499 | ||
b990b5c0 | 500 | |
e1161c32 JA |
501 | #define td_verror(td, err, func) \ |
502 | __td_verror((td), (err), strerror((err)), (func)) | |
503 | #define td_vmsg(td, err, msg, func) \ | |
504 | __td_verror((td), (err), (msg), (func)) | |
b990b5c0 | 505 | |
ebac4655 JA |
506 | extern int exitall_on_terminate; |
507 | extern int thread_number; | |
508 | extern int shm_id; | |
509 | extern int groupid; | |
c6ae0a5b | 510 | extern int terse_output; |
eb8bbf48 JA |
511 | extern FILE *f_out; |
512 | extern FILE *f_err; | |
53cdc686 | 513 | extern int temp_stall_ts; |
1e97cce9 | 514 | extern unsigned long long mlock_size; |
ebac4655 JA |
515 | |
516 | extern struct thread_data *threads; | |
517 | ||
413dd459 JA |
518 | #define td_read(td) ((td)->td_ddir & TD_DDIR_READ) |
519 | #define td_write(td) ((td)->td_ddir & TD_DDIR_WRITE) | |
520 | #define td_rw(td) (((td)->td_ddir & TD_DDIR_RW) == TD_DDIR_RW) | |
521 | #define td_random(td) ((td)->td_ddir & TD_DDIR_RAND) | |
ebac4655 JA |
522 | |
523 | #define BLOCKS_PER_MAP (8 * sizeof(long)) | |
a00735e6 | 524 | #define TO_MAP_BLOCK(td, f, b) ((b) - ((f)->file_offset / (td)->rw_min_bs)) |
53cdc686 JA |
525 | #define RAND_MAP_IDX(td, f, b) (TO_MAP_BLOCK(td, f, b) / BLOCKS_PER_MAP) |
526 | #define RAND_MAP_BIT(td, f, b) (TO_MAP_BLOCK(td, f, b) & (BLOCKS_PER_MAP - 1)) | |
ebac4655 JA |
527 | |
528 | #define MAX_JOBS (1024) | |
529 | ||
87dc1ab1 JA |
530 | static inline int should_fsync(struct thread_data *td) |
531 | { | |
532 | if (td->last_was_sync) | |
533 | return 0; | |
534 | if (td->odirect) | |
535 | return 0; | |
536 | if (td_write(td) || td_rw(td) || td->override_sync) | |
537 | return 1; | |
538 | ||
539 | return 0; | |
540 | } | |
541 | ||
1c9e06ee JA |
542 | /* |
543 | * Disk utils as read in /sys/block/<dev>/stat | |
544 | */ | |
ebac4655 JA |
545 | struct disk_util_stat { |
546 | unsigned ios[2]; | |
547 | unsigned merges[2]; | |
548 | unsigned long long sectors[2]; | |
549 | unsigned ticks[2]; | |
550 | unsigned io_ticks; | |
551 | unsigned time_in_queue; | |
552 | }; | |
553 | ||
1c9e06ee JA |
554 | /* |
555 | * Per-device disk util management | |
556 | */ | |
ebac4655 JA |
557 | struct disk_util { |
558 | struct list_head list; | |
559 | ||
560 | char *name; | |
561 | char path[256]; | |
562 | dev_t dev; | |
563 | ||
564 | struct disk_util_stat dus; | |
565 | struct disk_util_stat last_dus; | |
566 | ||
567 | unsigned long msec; | |
568 | struct timeval time; | |
569 | }; | |
570 | ||
ebac4655 JA |
571 | #define DISK_UTIL_MSEC (250) |
572 | ||
6a0106a0 JA |
573 | #ifndef min |
574 | #define min(a, b) ((a) < (b) ? (a) : (b)) | |
575 | #endif | |
a00735e6 JA |
576 | #ifndef max |
577 | #define max(a, b) ((a) > (b) ? (a) : (b)) | |
578 | #endif | |
6a0106a0 | 579 | |
6796209a JA |
580 | /* |
581 | * Log exports | |
582 | */ | |
72cb971b | 583 | extern int __must_check read_iolog_get(struct thread_data *, struct io_u *); |
6796209a | 584 | extern void write_iolog_put(struct thread_data *, struct io_u *); |
72cb971b | 585 | extern int __must_check init_iolog(struct thread_data *td); |
6796209a JA |
586 | extern void log_io_piece(struct thread_data *, struct io_u *); |
587 | extern void prune_io_piece_log(struct thread_data *); | |
588 | extern void write_iolog_close(struct thread_data *); | |
589 | ||
590 | /* | |
591 | * Logging | |
592 | */ | |
1e97cce9 JA |
593 | extern void add_clat_sample(struct thread_data *, enum fio_ddir, unsigned long); |
594 | extern void add_slat_sample(struct thread_data *, enum fio_ddir, unsigned long); | |
595 | extern void add_bw_sample(struct thread_data *, enum fio_ddir, struct timeval *); | |
6796209a JA |
596 | extern void show_run_stats(void); |
597 | extern void init_disk_util(struct thread_data *); | |
598 | extern void update_rusage_stat(struct thread_data *); | |
599 | extern void update_io_ticks(void); | |
600 | extern void disk_util_timer_arm(void); | |
8914a9d8 JA |
601 | extern void setup_log(struct io_log **); |
602 | extern void finish_log(struct thread_data *, struct io_log *, const char *); | |
bb3884d8 | 603 | extern void __finish_log(struct io_log *, const char *); |
8914a9d8 | 604 | extern int setup_rate(struct thread_data *); |
bb3884d8 JA |
605 | extern struct io_log *agg_io_log[2]; |
606 | extern int write_bw_log; | |
607 | extern void add_agg_sample(unsigned long, enum fio_ddir); | |
6796209a JA |
608 | |
609 | /* | |
610 | * Time functions | |
611 | */ | |
612 | extern unsigned long utime_since(struct timeval *, struct timeval *); | |
69008999 | 613 | extern unsigned long utime_since_now(struct timeval *); |
6796209a JA |
614 | extern unsigned long mtime_since(struct timeval *, struct timeval *); |
615 | extern unsigned long mtime_since_now(struct timeval *); | |
616 | extern unsigned long time_since_now(struct timeval *); | |
263e529f | 617 | extern unsigned long mtime_since_genesis(void); |
b990b5c0 | 618 | extern void __usec_sleep(unsigned int); |
6796209a | 619 | extern void usec_sleep(struct thread_data *, unsigned long); |
413dd459 | 620 | extern void rate_throttle(struct thread_data *, unsigned long, unsigned int); |
6043c579 | 621 | extern void fill_start_time(struct timeval *); |
02bcaa8c | 622 | extern void fio_gettime(struct timeval *, void *); |
a2f77c9f | 623 | extern void set_genesis_time(void); |
6796209a | 624 | |
8914a9d8 JA |
625 | /* |
626 | * Init functions | |
627 | */ | |
72cb971b JA |
628 | extern int __must_check parse_options(int, char **); |
629 | extern int __must_check init_random_state(struct thread_data *); | |
8914a9d8 | 630 | |
53cdc686 JA |
631 | /* |
632 | * File setup/shutdown | |
633 | */ | |
634 | extern void close_files(struct thread_data *); | |
b2fdda43 JA |
635 | extern int __must_check setup_files(struct thread_data *); |
636 | extern int __must_check open_files(struct thread_data *); | |
bdb4e2e9 JA |
637 | extern int open_file(struct thread_data *, struct fio_file *, int, int); |
638 | extern void close_file(struct thread_data *, struct fio_file *); | |
b2fdda43 | 639 | extern int __must_check file_invalidate_cache(struct thread_data *, struct fio_file *); |
53cdc686 | 640 | |
263e529f JA |
641 | /* |
642 | * ETA/status stuff | |
643 | */ | |
644 | extern void print_thread_status(void); | |
645 | extern void print_status_init(int); | |
646 | ||
647 | /* | |
648 | * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it | |
649 | * will never back again. It may cycle between running/verififying/fsyncing. | |
650 | * Once the thread reaches TD_EXITED, it is just waiting for the core to | |
651 | * reap it. | |
652 | */ | |
653 | enum { | |
654 | TD_NOT_CREATED = 0, | |
655 | TD_CREATED, | |
656 | TD_INITIALIZED, | |
657 | TD_RUNNING, | |
658 | TD_VERIFYING, | |
659 | TD_FSYNCING, | |
660 | TD_EXITED, | |
661 | TD_REAPED, | |
662 | }; | |
663 | ||
e29d1b70 JA |
664 | /* |
665 | * Verify helpers | |
666 | */ | |
667 | extern void populate_verify_io_u(struct thread_data *, struct io_u *); | |
b2fdda43 JA |
668 | extern int __must_check get_next_verify(struct thread_data *td, struct io_u *); |
669 | extern int __must_check verify_io_u(struct io_u *); | |
e29d1b70 | 670 | |
2f9ade3c JA |
671 | /* |
672 | * Memory helpers | |
673 | */ | |
b2fdda43 | 674 | extern int __must_check fio_pin_memory(void); |
2f9ade3c | 675 | extern void fio_unpin_memory(void); |
b2fdda43 | 676 | extern int __must_check allocate_io_mem(struct thread_data *); |
2f9ade3c JA |
677 | extern void free_io_mem(struct thread_data *); |
678 | ||
10ba535a JA |
679 | /* |
680 | * io unit handling | |
681 | */ | |
682 | #define queue_full(td) list_empty(&(td)->io_u_freelist) | |
683 | extern struct io_u *__get_io_u(struct thread_data *); | |
3d7c391d | 684 | extern struct io_u *get_io_u(struct thread_data *); |
10ba535a | 685 | extern void put_io_u(struct thread_data *, struct io_u *); |
755200a3 | 686 | extern void requeue_io_u(struct thread_data *, struct io_u **); |
d7762cf8 JA |
687 | extern long __must_check io_u_sync_complete(struct thread_data *, struct io_u *); |
688 | extern long __must_check io_u_queued_complete(struct thread_data *, int); | |
7e77dd02 | 689 | extern void io_u_queued(struct thread_data *, struct io_u *); |
5451792e | 690 | extern void io_u_log_error(struct thread_data *, struct io_u *); |
433afcb4 JA |
691 | extern void io_u_init_timeout(void); |
692 | extern void io_u_set_timeout(struct thread_data *); | |
10ba535a JA |
693 | |
694 | /* | |
695 | * io engine entry points | |
696 | */ | |
b2fdda43 JA |
697 | extern int __must_check td_io_init(struct thread_data *); |
698 | extern int __must_check td_io_prep(struct thread_data *, struct io_u *); | |
699 | extern int __must_check td_io_queue(struct thread_data *, struct io_u *); | |
700 | extern int __must_check td_io_sync(struct thread_data *, struct fio_file *); | |
701 | extern int __must_check td_io_getevents(struct thread_data *, int, int, struct timespec *); | |
702 | extern int __must_check td_io_commit(struct thread_data *); | |
10ba535a | 703 | |
bbfd6b00 JA |
704 | /* |
705 | * This is a pretty crappy semaphore implementation, but with the use that fio | |
706 | * has (just signalling start/go conditions), it doesn't have to be better. | |
707 | * Naturally this would not work for any type of contended semaphore or | |
708 | * for real locking. | |
709 | */ | |
1056eaad | 710 | static inline void fio_sem_init(volatile int *sem, int val) |
bbfd6b00 JA |
711 | { |
712 | *sem = val; | |
713 | } | |
714 | ||
1056eaad | 715 | static inline void fio_sem_down(volatile int *sem) |
bbfd6b00 JA |
716 | { |
717 | while (*sem == 0) | |
718 | usleep(10000); | |
719 | ||
720 | (*sem)--; | |
721 | } | |
722 | ||
1056eaad | 723 | static inline void fio_sem_up(volatile int *sem) |
bbfd6b00 JA |
724 | { |
725 | (*sem)++; | |
726 | } | |
727 | ||
3b70d7e5 JA |
728 | /* |
729 | * If logging output to a file, stderr should go to both stderr and f_err | |
730 | */ | |
731 | #define log_err(args...) do { \ | |
732 | fprintf(f_err, ##args); \ | |
733 | if (f_err != stderr) \ | |
734 | fprintf(stderr, ##args); \ | |
735 | } while (0) | |
736 | ||
9728ce37 JB |
737 | FILE *get_f_out(void); |
738 | FILE *get_f_err(void); | |
739 | ||
2866c82d | 740 | struct ioengine_ops { |
5f350952 | 741 | struct list_head list; |
2866c82d JA |
742 | char name[16]; |
743 | int version; | |
744 | int flags; | |
ea2877a4 | 745 | int (*setup)(struct thread_data *); |
2866c82d JA |
746 | int (*init)(struct thread_data *); |
747 | int (*prep)(struct thread_data *, struct io_u *); | |
748 | int (*queue)(struct thread_data *, struct io_u *); | |
755200a3 | 749 | int (*commit)(struct thread_data *); |
2866c82d JA |
750 | int (*getevents)(struct thread_data *, int, int, struct timespec *); |
751 | struct io_u *(*event)(struct thread_data *, int); | |
752 | int (*cancel)(struct thread_data *, struct io_u *); | |
753 | void (*cleanup)(struct thread_data *); | |
2866c82d JA |
754 | void *data; |
755 | void *dlhandle; | |
36167d82 | 756 | unsigned long priv; |
2866c82d JA |
757 | }; |
758 | ||
755200a3 | 759 | #define FIO_IOOPS_VERSION 5 |
2866c82d | 760 | |
b4692828 | 761 | extern struct ioengine_ops *load_ioengine(struct thread_data *, const char *); |
b2fdda43 | 762 | extern void register_ioengine(struct ioengine_ops *); |
5f350952 | 763 | extern void unregister_ioengine(struct ioengine_ops *); |
2866c82d JA |
764 | extern void close_ioengine(struct thread_data *); |
765 | ||
766 | /* | |
767 | * Mark unused variables passed to ops functions as unused, to silence gcc | |
768 | */ | |
769 | #define fio_unused __attribute((__unused__)) | |
5f350952 JA |
770 | #define fio_init __attribute__((constructor)) |
771 | #define fio_exit __attribute__((destructor)) | |
2866c82d | 772 | |
34572e28 JA |
773 | #define for_each_td(td, i) \ |
774 | for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++) | |
53cdc686 | 775 | #define for_each_file(td, f, i) \ |
34572e28 | 776 | for ((i) = 0, (f) = &(td)->files[0]; (i) < (int) (td)->nr_files; (i)++, (f)++) |
53cdc686 | 777 | |
0032bf9f JA |
778 | #define fio_assert(td, cond) do { \ |
779 | if (!(cond)) { \ | |
340fd243 | 780 | int *__foo = NULL; \ |
0032bf9f JA |
781 | fprintf(stderr, "file:%s:%d, assert %s failed\n", __FILE__, __LINE__, #cond); \ |
782 | (td)->runstate = TD_EXITED; \ | |
437c9b71 | 783 | (td)->error = EFAULT; \ |
340fd243 | 784 | *__foo = 0; \ |
0032bf9f JA |
785 | } \ |
786 | } while (0) | |
787 | ||
ebac4655 | 788 | #endif |