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, | |
37 | TD_DDIR_RANDWRITE = TD_DDIR_WRITE | TD_DDIR_READ, | |
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 */ | |
217 | FIO_NETIO = 1 << 4, /* networked io */ | |
218 | FIO_NULLIO = 1 << 5, /* no real data transfer (cpu/null) */ | |
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 | ||
079ad09b JA |
251 | struct thread_stat { |
252 | struct io_log *slat_log; | |
253 | struct io_log *clat_log; | |
254 | struct io_log *bw_log; | |
255 | ||
256 | /* | |
257 | * bandwidth and latency stats | |
258 | */ | |
259 | struct io_stat clat_stat[2]; /* completion latency */ | |
260 | struct io_stat slat_stat[2]; /* submission latency */ | |
261 | struct io_stat bw_stat[2]; /* bandwidth stats */ | |
262 | ||
263 | unsigned long long stat_io_bytes[2]; | |
264 | struct timeval stat_sample_time[2]; | |
265 | ||
266 | /* | |
267 | * fio system usage accounting | |
268 | */ | |
269 | struct rusage ru_start; | |
270 | struct rusage ru_end; | |
271 | unsigned long usr_time; | |
272 | unsigned long sys_time; | |
273 | unsigned long ctx; | |
274 | }; | |
275 | ||
71619dc2 JA |
276 | /* |
277 | * How many depth levels to log | |
278 | */ | |
279 | #define FIO_IO_U_MAP_NR 8 | |
ec118304 | 280 | #define FIO_IO_U_LAT_NR 12 |
71619dc2 | 281 | |
e9c047a0 JA |
282 | /* |
283 | * This describes a single thread/process executing a fio job. | |
284 | */ | |
ebac4655 | 285 | struct thread_data { |
b1ec1da6 | 286 | int pad; |
61697c37 | 287 | char *description; |
b4692828 | 288 | char *name; |
ef899b63 | 289 | char *directory; |
13f8e2d2 | 290 | char *filename; |
ebac4655 JA |
291 | char verror[80]; |
292 | pthread_t thread; | |
293 | int thread_number; | |
294 | int groupid; | |
079ad09b | 295 | struct thread_stat ts; |
e9c047a0 | 296 | enum fio_filetype filetype; |
53cdc686 JA |
297 | struct fio_file *files; |
298 | unsigned int nr_files; | |
13f8e2d2 | 299 | unsigned int nr_uniq_files; |
0aabe160 JA |
300 | union { |
301 | unsigned int next_file; | |
302 | os_random_state_t next_file_state; | |
303 | }; | |
ebac4655 | 304 | int error; |
ebac4655 JA |
305 | pid_t pid; |
306 | char *orig_buffer; | |
307 | size_t orig_buffer_size; | |
308 | volatile int terminate; | |
309 | volatile int runstate; | |
413dd459 | 310 | enum td_ddir td_ddir; |
ebac4655 | 311 | unsigned int ioprio; |
87dc1ab1 | 312 | unsigned int last_was_sync; |
e9c047a0 | 313 | |
9158d2f7 JA |
314 | unsigned int odirect; |
315 | unsigned int invalidate_cache; | |
316 | unsigned int create_serialize; | |
317 | unsigned int create_fsync; | |
318 | unsigned int end_fsync; | |
319 | unsigned int sync_io; | |
320 | unsigned int verify; | |
321 | unsigned int use_thread; | |
322 | unsigned int unlink; | |
323 | unsigned int do_disk_util; | |
324 | unsigned int override_sync; | |
325 | unsigned int rand_repeatable; | |
326 | unsigned int write_lat_log; | |
327 | unsigned int write_bw_log; | |
bb8895e0 | 328 | unsigned int norandommap; |
690adba3 | 329 | unsigned int bs_unaligned; |
e9c047a0 | 330 | |
a00735e6 JA |
331 | unsigned int bs[2]; |
332 | unsigned int min_bs[2]; | |
333 | unsigned int max_bs[2]; | |
56bb17f2 | 334 | unsigned int hugepage_size; |
a00735e6 | 335 | unsigned int rw_min_bs; |
ebac4655 | 336 | unsigned int thinktime; |
48097d5c | 337 | unsigned int thinktime_spin; |
9c1f7434 | 338 | unsigned int thinktime_blocks; |
ebac4655 JA |
339 | unsigned int fsync_blocks; |
340 | unsigned int start_delay; | |
906c8d75 | 341 | unsigned long timeout; |
ebac4655 | 342 | unsigned int overwrite; |
ebac4655 | 343 | unsigned int bw_avg_time; |
ebac4655 | 344 | unsigned int loops; |
20dc95c4 JA |
345 | unsigned long long zone_size; |
346 | unsigned long long zone_skip; | |
e9c047a0 | 347 | enum fio_memtype mem_type; |
313cb206 JA |
348 | char *mmapfile; |
349 | int mmapfd; | |
ebac4655 JA |
350 | unsigned int stonewall; |
351 | unsigned int numjobs; | |
ebac4655 | 352 | unsigned int iodepth; |
e916b390 | 353 | unsigned int iodepth_low; |
ebac4655 | 354 | os_cpu_mask_t cpumask; |
aea47d44 | 355 | unsigned int iolog; |
843a7413 | 356 | unsigned int read_iolog; |
a6ccc7be JA |
357 | unsigned int rwmixcycle; |
358 | unsigned int rwmixread; | |
e1f36503 | 359 | unsigned int rwmixwrite; |
b6f4d880 | 360 | unsigned int nice; |
0aabe160 | 361 | unsigned int file_service_type; |
aea47d44 | 362 | |
076efc7c JA |
363 | char *read_iolog_file; |
364 | char *write_iolog_file; | |
843a7413 JA |
365 | void *iolog_buf; |
366 | FILE *iolog_f; | |
ebac4655 | 367 | |
da86774e | 368 | char *sysfs_root; |
da86774e JA |
369 | char *ioscheduler; |
370 | ||
6dfd46b9 JA |
371 | os_random_state_t bsrange_state; |
372 | os_random_state_t verify_state; | |
ebac4655 JA |
373 | |
374 | int shm_id; | |
375 | ||
e9c047a0 JA |
376 | /* |
377 | * IO engine hooks, contains everything needed to submit an io_u | |
378 | * to any of the available IO engines. | |
379 | */ | |
2866c82d | 380 | struct ioengine_ops *io_ops; |
ebac4655 | 381 | |
e9c047a0 JA |
382 | /* |
383 | * Current IO depth and list of free and busy io_u's. | |
384 | */ | |
ebac4655 | 385 | unsigned int cur_depth; |
71619dc2 | 386 | unsigned int io_u_map[FIO_IO_U_MAP_NR]; |
ec118304 | 387 | unsigned int io_u_lat[FIO_IO_U_LAT_NR]; |
71619dc2 | 388 | unsigned long total_io_u; |
ebac4655 JA |
389 | struct list_head io_u_freelist; |
390 | struct list_head io_u_busylist; | |
755200a3 | 391 | struct list_head io_u_requeues; |
ebac4655 | 392 | |
e9c047a0 JA |
393 | /* |
394 | * Rate state | |
395 | */ | |
ebac4655 JA |
396 | unsigned int rate; |
397 | unsigned int ratemin; | |
398 | unsigned int ratecycle; | |
399 | unsigned long rate_usec_cycle; | |
400 | long rate_pending_usleep; | |
401 | unsigned long rate_bytes; | |
402 | struct timeval lastrate; | |
403 | ||
404 | unsigned long runtime[2]; /* msec */ | |
405 | unsigned long long io_size; | |
53cdc686 JA |
406 | unsigned long long total_file_size; |
407 | unsigned long long start_offset; | |
ebac4655 JA |
408 | unsigned long long total_io_size; |
409 | ||
755200a3 | 410 | unsigned long io_issues[2]; |
9104f874 JA |
411 | unsigned long long io_blocks[2]; |
412 | unsigned long long io_bytes[2]; | |
9104f874 | 413 | unsigned long long this_io_bytes[2]; |
079ad09b | 414 | unsigned long long zone_bytes; |
bbfd6b00 | 415 | volatile int mutex; |
ebac4655 | 416 | |
e9c047a0 JA |
417 | /* |
418 | * State for random io, a bitmap of blocks done vs not done | |
419 | */ | |
6dfd46b9 | 420 | os_random_state_t random_state; |
ebac4655 | 421 | |
b990b5c0 JA |
422 | /* |
423 | * CPU "io" cycle burner | |
424 | */ | |
425 | unsigned int cpuload; | |
426 | unsigned int cpucycle; | |
427 | ||
ebac4655 JA |
428 | struct timeval start; /* start of this loop */ |
429 | struct timeval epoch; /* time job was started */ | |
69008999 | 430 | struct timeval end_time;/* time job ended */ |
ebac4655 | 431 | |
e9c047a0 JA |
432 | /* |
433 | * read/write mixed workload state | |
434 | */ | |
6dfd46b9 | 435 | os_random_state_t rwmix_state; |
a6ccc7be | 436 | struct timeval rwmix_switch; |
e9c047a0 | 437 | enum fio_ddir rwmix_ddir; |
a6ccc7be | 438 | |
4e0ba8af JA |
439 | /* |
440 | * Pre-run and post-run shell | |
441 | */ | |
442 | char *exec_prerun; | |
443 | char *exec_postrun; | |
444 | ||
e9c047a0 JA |
445 | /* |
446 | * IO historic logs | |
447 | */ | |
ebac4655 | 448 | struct list_head io_hist_list; |
aea47d44 | 449 | struct list_head io_log_list; |
433afcb4 JA |
450 | |
451 | /* | |
452 | * timeout handling | |
453 | */ | |
454 | struct timeval timeout_end; | |
455 | struct itimerval timer; | |
ebac4655 JA |
456 | }; |
457 | ||
0aabe160 JA |
458 | /* |
459 | * roundrobin available files, or choose one at random. | |
460 | */ | |
461 | enum { | |
462 | FIO_FSERVICE_RANDOM = 1, | |
463 | FIO_FSERVICE_RR = 2, | |
464 | }; | |
465 | ||
433afcb4 JA |
466 | /* |
467 | * 30 second per-io_u timeout, with 5 second intervals to avoid resetting | |
468 | * the timer on each queue operation. | |
469 | */ | |
470 | #define IO_U_TIMEOUT_INC 5 | |
471 | #define IO_U_TIMEOUT 30 | |
472 | ||
e1161c32 | 473 | #define __td_verror(td, err, msg, func) \ |
ebac4655 | 474 | do { \ |
19abcd3d JA |
475 | if ((td)->error) \ |
476 | break; \ | |
ebac4655 JA |
477 | int e = (err); \ |
478 | (td)->error = e; \ | |
e1161c32 | 479 | snprintf(td->verror, sizeof(td->verror) - 1, "file:%s:%d, func=%s, error=%s", __FILE__, __LINE__, (func), (msg)); \ |
ebac4655 JA |
480 | } while (0) |
481 | ||
b990b5c0 | 482 | |
e1161c32 JA |
483 | #define td_verror(td, err, func) \ |
484 | __td_verror((td), (err), strerror((err)), (func)) | |
485 | #define td_vmsg(td, err, msg, func) \ | |
486 | __td_verror((td), (err), (msg), (func)) | |
b990b5c0 | 487 | |
ebac4655 JA |
488 | extern int exitall_on_terminate; |
489 | extern int thread_number; | |
490 | extern int shm_id; | |
491 | extern int groupid; | |
c6ae0a5b | 492 | extern int terse_output; |
eb8bbf48 JA |
493 | extern FILE *f_out; |
494 | extern FILE *f_err; | |
53cdc686 | 495 | extern int temp_stall_ts; |
1e97cce9 | 496 | extern unsigned long long mlock_size; |
ebac4655 JA |
497 | |
498 | extern struct thread_data *threads; | |
499 | ||
413dd459 JA |
500 | #define td_read(td) ((td)->td_ddir & TD_DDIR_READ) |
501 | #define td_write(td) ((td)->td_ddir & TD_DDIR_WRITE) | |
502 | #define td_rw(td) (((td)->td_ddir & TD_DDIR_RW) == TD_DDIR_RW) | |
503 | #define td_random(td) ((td)->td_ddir & TD_DDIR_RAND) | |
ebac4655 JA |
504 | |
505 | #define BLOCKS_PER_MAP (8 * sizeof(long)) | |
a00735e6 | 506 | #define TO_MAP_BLOCK(td, f, b) ((b) - ((f)->file_offset / (td)->rw_min_bs)) |
53cdc686 JA |
507 | #define RAND_MAP_IDX(td, f, b) (TO_MAP_BLOCK(td, f, b) / BLOCKS_PER_MAP) |
508 | #define RAND_MAP_BIT(td, f, b) (TO_MAP_BLOCK(td, f, b) & (BLOCKS_PER_MAP - 1)) | |
ebac4655 JA |
509 | |
510 | #define MAX_JOBS (1024) | |
511 | ||
87dc1ab1 JA |
512 | static inline int should_fsync(struct thread_data *td) |
513 | { | |
514 | if (td->last_was_sync) | |
515 | return 0; | |
516 | if (td->odirect) | |
517 | return 0; | |
518 | if (td_write(td) || td_rw(td) || td->override_sync) | |
519 | return 1; | |
520 | ||
521 | return 0; | |
522 | } | |
523 | ||
1c9e06ee JA |
524 | /* |
525 | * Disk utils as read in /sys/block/<dev>/stat | |
526 | */ | |
ebac4655 JA |
527 | struct disk_util_stat { |
528 | unsigned ios[2]; | |
529 | unsigned merges[2]; | |
530 | unsigned long long sectors[2]; | |
531 | unsigned ticks[2]; | |
532 | unsigned io_ticks; | |
533 | unsigned time_in_queue; | |
534 | }; | |
535 | ||
1c9e06ee JA |
536 | /* |
537 | * Per-device disk util management | |
538 | */ | |
ebac4655 JA |
539 | struct disk_util { |
540 | struct list_head list; | |
541 | ||
542 | char *name; | |
543 | char path[256]; | |
544 | dev_t dev; | |
545 | ||
546 | struct disk_util_stat dus; | |
547 | struct disk_util_stat last_dus; | |
548 | ||
549 | unsigned long msec; | |
550 | struct timeval time; | |
551 | }; | |
552 | ||
ebac4655 JA |
553 | #define DISK_UTIL_MSEC (250) |
554 | ||
6a0106a0 JA |
555 | #ifndef min |
556 | #define min(a, b) ((a) < (b) ? (a) : (b)) | |
557 | #endif | |
a00735e6 JA |
558 | #ifndef max |
559 | #define max(a, b) ((a) > (b) ? (a) : (b)) | |
560 | #endif | |
6a0106a0 | 561 | |
6796209a JA |
562 | /* |
563 | * Log exports | |
564 | */ | |
72cb971b | 565 | extern int __must_check read_iolog_get(struct thread_data *, struct io_u *); |
6796209a | 566 | extern void write_iolog_put(struct thread_data *, struct io_u *); |
72cb971b | 567 | extern int __must_check init_iolog(struct thread_data *td); |
6796209a JA |
568 | extern void log_io_piece(struct thread_data *, struct io_u *); |
569 | extern void prune_io_piece_log(struct thread_data *); | |
570 | extern void write_iolog_close(struct thread_data *); | |
571 | ||
572 | /* | |
573 | * Logging | |
574 | */ | |
1e97cce9 JA |
575 | extern void add_clat_sample(struct thread_data *, enum fio_ddir, unsigned long); |
576 | extern void add_slat_sample(struct thread_data *, enum fio_ddir, unsigned long); | |
577 | extern void add_bw_sample(struct thread_data *, enum fio_ddir, struct timeval *); | |
6796209a JA |
578 | extern void show_run_stats(void); |
579 | extern void init_disk_util(struct thread_data *); | |
580 | extern void update_rusage_stat(struct thread_data *); | |
581 | extern void update_io_ticks(void); | |
582 | extern void disk_util_timer_arm(void); | |
8914a9d8 JA |
583 | extern void setup_log(struct io_log **); |
584 | extern void finish_log(struct thread_data *, struct io_log *, const char *); | |
bb3884d8 | 585 | extern void __finish_log(struct io_log *, const char *); |
8914a9d8 | 586 | extern int setup_rate(struct thread_data *); |
bb3884d8 JA |
587 | extern struct io_log *agg_io_log[2]; |
588 | extern int write_bw_log; | |
589 | extern void add_agg_sample(unsigned long, enum fio_ddir); | |
6796209a JA |
590 | |
591 | /* | |
592 | * Time functions | |
593 | */ | |
594 | extern unsigned long utime_since(struct timeval *, struct timeval *); | |
69008999 | 595 | extern unsigned long utime_since_now(struct timeval *); |
6796209a JA |
596 | extern unsigned long mtime_since(struct timeval *, struct timeval *); |
597 | extern unsigned long mtime_since_now(struct timeval *); | |
598 | extern unsigned long time_since_now(struct timeval *); | |
263e529f | 599 | extern unsigned long mtime_since_genesis(void); |
b990b5c0 | 600 | extern void __usec_sleep(unsigned int); |
6796209a | 601 | extern void usec_sleep(struct thread_data *, unsigned long); |
413dd459 | 602 | extern void rate_throttle(struct thread_data *, unsigned long, unsigned int); |
6043c579 | 603 | extern void fill_start_time(struct timeval *); |
02bcaa8c | 604 | extern void fio_gettime(struct timeval *, void *); |
a2f77c9f | 605 | extern void set_genesis_time(void); |
6796209a | 606 | |
8914a9d8 JA |
607 | /* |
608 | * Init functions | |
609 | */ | |
72cb971b JA |
610 | extern int __must_check parse_options(int, char **); |
611 | extern int __must_check init_random_state(struct thread_data *); | |
8914a9d8 | 612 | |
53cdc686 JA |
613 | /* |
614 | * File setup/shutdown | |
615 | */ | |
616 | extern void close_files(struct thread_data *); | |
b2fdda43 JA |
617 | extern int __must_check setup_files(struct thread_data *); |
618 | extern int __must_check open_files(struct thread_data *); | |
619 | extern int __must_check file_invalidate_cache(struct thread_data *, struct fio_file *); | |
53cdc686 | 620 | |
263e529f JA |
621 | /* |
622 | * ETA/status stuff | |
623 | */ | |
624 | extern void print_thread_status(void); | |
625 | extern void print_status_init(int); | |
626 | ||
627 | /* | |
628 | * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it | |
629 | * will never back again. It may cycle between running/verififying/fsyncing. | |
630 | * Once the thread reaches TD_EXITED, it is just waiting for the core to | |
631 | * reap it. | |
632 | */ | |
633 | enum { | |
634 | TD_NOT_CREATED = 0, | |
635 | TD_CREATED, | |
636 | TD_INITIALIZED, | |
637 | TD_RUNNING, | |
638 | TD_VERIFYING, | |
639 | TD_FSYNCING, | |
640 | TD_EXITED, | |
641 | TD_REAPED, | |
642 | }; | |
643 | ||
e29d1b70 JA |
644 | /* |
645 | * Verify helpers | |
646 | */ | |
647 | extern void populate_verify_io_u(struct thread_data *, struct io_u *); | |
b2fdda43 JA |
648 | extern int __must_check get_next_verify(struct thread_data *td, struct io_u *); |
649 | extern int __must_check verify_io_u(struct io_u *); | |
e29d1b70 | 650 | |
2f9ade3c JA |
651 | /* |
652 | * Memory helpers | |
653 | */ | |
b2fdda43 | 654 | extern int __must_check fio_pin_memory(void); |
2f9ade3c | 655 | extern void fio_unpin_memory(void); |
b2fdda43 | 656 | extern int __must_check allocate_io_mem(struct thread_data *); |
2f9ade3c JA |
657 | extern void free_io_mem(struct thread_data *); |
658 | ||
10ba535a JA |
659 | /* |
660 | * io unit handling | |
661 | */ | |
662 | #define queue_full(td) list_empty(&(td)->io_u_freelist) | |
663 | extern struct io_u *__get_io_u(struct thread_data *); | |
3d7c391d | 664 | extern struct io_u *get_io_u(struct thread_data *); |
10ba535a | 665 | extern void put_io_u(struct thread_data *, struct io_u *); |
755200a3 | 666 | extern void requeue_io_u(struct thread_data *, struct io_u **); |
d7762cf8 JA |
667 | extern long __must_check io_u_sync_complete(struct thread_data *, struct io_u *); |
668 | extern long __must_check io_u_queued_complete(struct thread_data *, int); | |
7e77dd02 | 669 | extern void io_u_queued(struct thread_data *, struct io_u *); |
433afcb4 JA |
670 | extern void io_u_init_timeout(void); |
671 | extern void io_u_set_timeout(struct thread_data *); | |
10ba535a JA |
672 | |
673 | /* | |
674 | * io engine entry points | |
675 | */ | |
b2fdda43 JA |
676 | extern int __must_check td_io_init(struct thread_data *); |
677 | extern int __must_check td_io_prep(struct thread_data *, struct io_u *); | |
678 | extern int __must_check td_io_queue(struct thread_data *, struct io_u *); | |
679 | extern int __must_check td_io_sync(struct thread_data *, struct fio_file *); | |
680 | extern int __must_check td_io_getevents(struct thread_data *, int, int, struct timespec *); | |
681 | extern int __must_check td_io_commit(struct thread_data *); | |
10ba535a | 682 | |
bbfd6b00 JA |
683 | /* |
684 | * This is a pretty crappy semaphore implementation, but with the use that fio | |
685 | * has (just signalling start/go conditions), it doesn't have to be better. | |
686 | * Naturally this would not work for any type of contended semaphore or | |
687 | * for real locking. | |
688 | */ | |
1056eaad | 689 | static inline void fio_sem_init(volatile int *sem, int val) |
bbfd6b00 JA |
690 | { |
691 | *sem = val; | |
692 | } | |
693 | ||
1056eaad | 694 | static inline void fio_sem_down(volatile int *sem) |
bbfd6b00 JA |
695 | { |
696 | while (*sem == 0) | |
697 | usleep(10000); | |
698 | ||
699 | (*sem)--; | |
700 | } | |
701 | ||
1056eaad | 702 | static inline void fio_sem_up(volatile int *sem) |
bbfd6b00 JA |
703 | { |
704 | (*sem)++; | |
705 | } | |
706 | ||
3b70d7e5 JA |
707 | /* |
708 | * If logging output to a file, stderr should go to both stderr and f_err | |
709 | */ | |
710 | #define log_err(args...) do { \ | |
711 | fprintf(f_err, ##args); \ | |
712 | if (f_err != stderr) \ | |
713 | fprintf(stderr, ##args); \ | |
714 | } while (0) | |
715 | ||
2866c82d | 716 | struct ioengine_ops { |
5f350952 | 717 | struct list_head list; |
2866c82d JA |
718 | char name[16]; |
719 | int version; | |
720 | int flags; | |
ea2877a4 | 721 | int (*setup)(struct thread_data *); |
2866c82d JA |
722 | int (*init)(struct thread_data *); |
723 | int (*prep)(struct thread_data *, struct io_u *); | |
724 | int (*queue)(struct thread_data *, struct io_u *); | |
755200a3 | 725 | int (*commit)(struct thread_data *); |
2866c82d JA |
726 | int (*getevents)(struct thread_data *, int, int, struct timespec *); |
727 | struct io_u *(*event)(struct thread_data *, int); | |
728 | int (*cancel)(struct thread_data *, struct io_u *); | |
729 | void (*cleanup)(struct thread_data *); | |
2866c82d JA |
730 | void *data; |
731 | void *dlhandle; | |
36167d82 | 732 | unsigned long priv; |
2866c82d JA |
733 | }; |
734 | ||
755200a3 | 735 | #define FIO_IOOPS_VERSION 5 |
2866c82d | 736 | |
b4692828 | 737 | extern struct ioengine_ops *load_ioengine(struct thread_data *, const char *); |
b2fdda43 | 738 | extern void register_ioengine(struct ioengine_ops *); |
5f350952 | 739 | extern void unregister_ioengine(struct ioengine_ops *); |
2866c82d JA |
740 | extern void close_ioengine(struct thread_data *); |
741 | ||
742 | /* | |
743 | * Mark unused variables passed to ops functions as unused, to silence gcc | |
744 | */ | |
745 | #define fio_unused __attribute((__unused__)) | |
5f350952 JA |
746 | #define fio_init __attribute__((constructor)) |
747 | #define fio_exit __attribute__((destructor)) | |
2866c82d | 748 | |
34572e28 JA |
749 | #define for_each_td(td, i) \ |
750 | for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++) | |
53cdc686 | 751 | #define for_each_file(td, f, i) \ |
34572e28 | 752 | for ((i) = 0, (f) = &(td)->files[0]; (i) < (int) (td)->nr_files; (i)++, (f)++) |
53cdc686 | 753 | |
0032bf9f JA |
754 | #define fio_assert(td, cond) do { \ |
755 | if (!(cond)) { \ | |
340fd243 | 756 | int *__foo = NULL; \ |
0032bf9f JA |
757 | fprintf(stderr, "file:%s:%d, assert %s failed\n", __FILE__, __LINE__, #cond); \ |
758 | (td)->runstate = TD_EXITED; \ | |
437c9b71 | 759 | (td)->error = EFAULT; \ |
340fd243 | 760 | *__foo = 0; \ |
0032bf9f JA |
761 | } \ |
762 | } while (0) | |
763 | ||
ebac4655 | 764 | #endif |