Increase accuracy of disk utility percentage
[fio.git] / fio.h
CommitLineData
ebac4655
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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
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9#include <errno.h>
10#include <stdlib.h>
11#include <stdio.h>
6d6f031f 12#include <unistd.h>
34cfcdaf 13#include <string.h>
214e1eca 14#include <getopt.h>
cd14cc10 15#include <inttypes.h>
7101d9c2 16#include <assert.h>
ebac4655 17
317b95d0 18#include "compiler/compiler.h"
01743ee1 19#include "flist.h"
e2887563 20#include "fifo.h"
4b87898e 21#include "rbtree.h"
317b95d0
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22#include "arch/arch.h"
23#include "os/os.h"
07739b57 24#include "mutex.h"
a3d741fa
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25#include "log.h"
26#include "debug.h"
ebac4655 27
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28#ifdef FIO_HAVE_GUASI
29#include <guasi.h>
30#endif
31
417f0068
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32#ifdef FIO_HAVE_SOLARISAIO
33#include <sys/asynch.h>
34#endif
35
1e97cce9
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36enum fio_ddir {
37 DDIR_READ = 0,
38 DDIR_WRITE,
39 DDIR_SYNC,
f29b25a3 40 DDIR_INVAL = -1,
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41};
42
413dd459 43enum td_ddir {
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44 TD_DDIR_READ = 1 << 0,
45 TD_DDIR_WRITE = 1 << 1,
46 TD_DDIR_RAND = 1 << 2,
47 TD_DDIR_RW = TD_DDIR_READ | TD_DDIR_WRITE,
48 TD_DDIR_RANDREAD = TD_DDIR_READ | TD_DDIR_RAND,
7ff1c14b 49 TD_DDIR_RANDWRITE = TD_DDIR_WRITE | TD_DDIR_RAND,
b1ec1da6 50 TD_DDIR_RANDRW = TD_DDIR_RW | TD_DDIR_RAND,
413dd459
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51};
52
4d4e80f2
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53enum file_lock_mode {
54 FILE_LOCK_NONE,
55 FILE_LOCK_EXCLUSIVE,
56 FILE_LOCK_READWRITE,
57};
58
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59/*
60 * Use for maintaining statistics
61 */
ebac4655 62struct io_stat {
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63 unsigned long max_val;
64 unsigned long min_val;
65 unsigned long samples;
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66
67 double mean;
68 double S;
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69};
70
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71/*
72 * A single data sample
73 */
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74struct io_sample {
75 unsigned long time;
76 unsigned long val;
1e97cce9 77 enum fio_ddir ddir;
306ddc97 78 unsigned int bs;
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79};
80
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81/*
82 * Dynamically growing data sample log
83 */
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84struct io_log {
85 unsigned long nr_samples;
86 unsigned long max_samples;
87 struct io_sample *log;
88};
89
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90/*
91 * When logging io actions, this matches a single sent io_u
92 */
ebac4655 93struct io_piece {
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94 union {
95 struct rb_node rb_node;
01743ee1 96 struct flist_head list;
4b87898e 97 };
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98 union {
99 int fileno;
100 struct fio_file *file;
101 };
ebac4655 102 unsigned long long offset;
a4f4fdd7 103 unsigned long len;
1e97cce9 104 enum fio_ddir ddir;
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105 union {
106 unsigned long delay;
107 unsigned int file_action;
108 };
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109};
110
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111enum {
112 IO_U_F_FREE = 1 << 0,
113 IO_U_F_FLIGHT = 1 << 1,
114};
115
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116struct thread_data;
117
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118/*
119 * The io unit
120 */
121struct io_u {
122 union {
123#ifdef FIO_HAVE_LIBAIO
124 struct iocb iocb;
125#endif
126#ifdef FIO_HAVE_POSIXAIO
127 struct aiocb aiocb;
128#endif
129#ifdef FIO_HAVE_SGIO
130 struct sg_io_hdr hdr;
a4f4fdd7 131#endif
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132#ifdef FIO_HAVE_GUASI
133 guasi_req_t greq;
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134#endif
135#ifdef FIO_HAVE_SOLARISAIO
136 aio_result_t resultp;
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137#endif
138 };
139 struct timeval start_time;
140 struct timeval issue_time;
141
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142 /*
143 * Allocated/set buffer and length
144 */
6b9cea23 145 void *buf;
a4f4fdd7 146 unsigned long buflen;
ebac4655 147 unsigned long long offset;
d460eb31 148 unsigned long long endpos;
ebac4655 149
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150 /*
151 * IO engine state, may be different from above when we get
152 * partial transfers / residual data counts
153 */
cec6b55d 154 void *xfer_buf;
a4f4fdd7 155 unsigned long xfer_buflen;
cec6b55d 156
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157 unsigned int resid;
158 unsigned int error;
159
1e97cce9 160 enum fio_ddir ddir;
ebac4655 161
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162 /*
163 * io engine private data
164 */
165 union {
166 unsigned int index;
167 unsigned int seen;
556e831d 168 void *engine_data;
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169 };
170
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171 unsigned int flags;
172
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173 struct fio_file *file;
174
01743ee1 175 struct flist_head list;
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176
177 /*
178 * Callback for io completion
179 */
36690c9b 180 int (*end_io)(struct thread_data *, struct io_u *);
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181};
182
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183/*
184 * io_ops->queue() return values
185 */
186enum {
187 FIO_Q_COMPLETED = 0, /* completed sync */
188 FIO_Q_QUEUED = 1, /* queued, will complete async */
755200a3 189 FIO_Q_BUSY = 2, /* no more room, call ->commit() */
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190};
191
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192#define FIO_HDR_MAGIC 0xf00baaef
193
194enum {
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195 VERIFY_NONE = 0, /* no verification */
196 VERIFY_MD5, /* md5 sum data blocks */
d77a7af3 197 VERIFY_CRC64, /* crc64 sum data blocks */
1c9e06ee 198 VERIFY_CRC32, /* crc32 sum data blocks */
bac39e0e 199 VERIFY_CRC32C, /* crc32c sum data blocks */
3845591f 200 VERIFY_CRC32C_INTEL, /* crc32c sum data blocks with hw */
969f7ed3 201 VERIFY_CRC16, /* crc16 sum data blocks */
1e154bdb 202 VERIFY_CRC7, /* crc7 sum data blocks */
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203 VERIFY_SHA256, /* sha256 sum data blocks */
204 VERIFY_SHA512, /* sha512 sum data blocks */
7437ee87 205 VERIFY_META, /* block_num, timestamp etc. */
36690c9b 206 VERIFY_NULL, /* pretend to verify */
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207};
208
1c9e06ee 209/*
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210 * A header structure associated with each checksummed data block. It is
211 * followed by a checksum specific header that contains the verification
212 * data.
1c9e06ee 213 */
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214struct verify_header {
215 unsigned int fio_magic;
216 unsigned int len;
217 unsigned int verify_type;
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218};
219
220struct vhdr_md5 {
221 uint32_t md5_digest[16];
222};
223struct vhdr_sha512 {
224 uint8_t sha512[128];
225};
226struct vhdr_sha256 {
227 uint8_t sha256[128];
228};
229struct vhdr_crc64 {
230 uint64_t crc64;
231};
232struct vhdr_crc32 {
233 uint32_t crc32;
234};
235struct vhdr_crc16 {
236 uint16_t crc16;
237};
238struct vhdr_crc7 {
239 uint8_t crc7;
ebac4655 240};
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241struct vhdr_meta {
242 uint64_t offset;
243 unsigned char thread;
244 unsigned short numberio;
245 unsigned long time_sec;
246 unsigned long time_usec;
247};
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248
249struct group_run_stats {
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250 unsigned long long max_run[2], min_run[2];
251 unsigned long long max_bw[2], min_bw[2];
e9b2a3fa 252 unsigned long long io_kb[2];
9104f874 253 unsigned long long agg[2];
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254};
255
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256/*
257 * What type of allocation to use for io buffers
258 */
259enum fio_memtype {
260 MEM_MALLOC = 0, /* ordinary malloc */
261 MEM_SHM, /* use shared memory segments */
74b025b0 262 MEM_SHMHUGE, /* use shared memory segments with huge pages */
e9c047a0 263 MEM_MMAP, /* use anonynomous mmap */
d0bdaf49 264 MEM_MMAPHUGE, /* memory mapped huge file */
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265};
266
267/*
268 * The type of object we are working on
269 */
270enum fio_filetype {
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271 FIO_TYPE_FILE = 1, /* plain file */
272 FIO_TYPE_BD, /* block device */
273 FIO_TYPE_CHAR, /* character device */
b5605e9d 274 FIO_TYPE_PIPE, /* pipe */
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275};
276
2866c82d 277enum fio_ioengine_flags {
1c9e06ee 278 FIO_SYNCIO = 1 << 0, /* io engine has synchronous ->queue */
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279 FIO_RAWIO = 1 << 1, /* some sort of direct/raw io */
280 FIO_DISKLESSIO = 1 << 2, /* no disk involved */
0263882a 281 FIO_NOEXTEND = 1 << 3, /* engine can't extend file */
62d984e2 282 FIO_NODISKUTIL = 1 << 4, /* diskutil can't handle filename */
b67740d3 283 FIO_UNIDIR = 1 << 5, /* engine is uni-directional */
1f809d15 284 FIO_NOIO = 1 << 6, /* thread does only pseudo IO */
ad830ed7 285 FIO_SIGQUIT = 1 << 7, /* needs SIGQUIT to exit */
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286};
287
f11bd94d 288enum fio_file_flags {
0ad920e7 289 FIO_FILE_OPEN = 1 << 0, /* file is open */
a9b7b305 290 FIO_FILE_CLOSING = 1 << 1, /* file being closed */
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291 FIO_FILE_EXTEND = 1 << 2, /* needs extend */
292 FIO_FILE_DONE = 1 << 3, /* io completed to this file */
293 FIO_SIZE_KNOWN = 1 << 4, /* size has been set */
392a3742 294 FIO_FILE_HASHED = 1 << 5, /* file is on hash */
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295};
296
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297/*
298 * Each thread_data structure has a number of files associated with it,
299 * this structure holds state information for a single file.
300 */
53cdc686 301struct fio_file {
01743ee1 302 struct flist_head hash_list;
af52b345
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303 enum fio_filetype filetype;
304
53cdc686
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305 /*
306 * A file may not be a file descriptor, let the io engine decide
307 */
308 union {
309 unsigned long file_data;
e26f8f7a 310 int fd;
53cdc686 311 };
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312
313 /*
314 * filename and possible memory mapping
315 */
1315a68a 316 char *file_name;
53cdc686 317 void *mmap;
5e6c2067 318 unsigned int major, minor;
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319
320 /*
321 * size of the file, offset into file, and io size from that offset
322 */
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323 unsigned long long real_file_size;
324 unsigned long long file_offset;
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325 unsigned long long io_size;
326
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327 unsigned long long last_pos;
328
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329 /*
330 * if io is protected by a semaphore, this is set
331 */
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332 struct fio_mutex *lock;
333 void *lock_owner;
334 unsigned int lock_batch;
335 enum fio_ddir lock_ddir;
29c1349f 336
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337 /*
338 * block map for random io
339 */
de605666 340 unsigned int *file_map;
53cdc686 341 unsigned int num_maps;
1c9e06ee 342 unsigned int last_free_lookup;
9b031dc8 343
0ad920e7 344 int references;
f11bd94d 345 enum fio_file_flags flags;
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346
347 struct disk_util *du;
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348};
349
b2560f3c
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350/*
351 * How many depth levels to log
352 */
353#define FIO_IO_U_MAP_NR 8
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354#define FIO_IO_U_LAT_U_NR 10
355#define FIO_IO_U_LAT_M_NR 12
b2560f3c 356
079ad09b 357struct thread_stat {
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358 char *name;
359 char *verror;
360 int error;
361 int groupid;
362 pid_t pid;
363 char *description;
6586ee89 364 int members;
756867bd 365
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366 struct io_log *slat_log;
367 struct io_log *clat_log;
368 struct io_log *bw_log;
369
370 /*
371 * bandwidth and latency stats
372 */
373 struct io_stat clat_stat[2]; /* completion latency */
374 struct io_stat slat_stat[2]; /* submission latency */
375 struct io_stat bw_stat[2]; /* bandwidth stats */
376
377 unsigned long long stat_io_bytes[2];
378 struct timeval stat_sample_time[2];
379
380 /*
381 * fio system usage accounting
382 */
383 struct rusage ru_start;
384 struct rusage ru_end;
385 unsigned long usr_time;
386 unsigned long sys_time;
387 unsigned long ctx;
81887d5d 388 unsigned long minf, majf;
079ad09b 389
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390 /*
391 * IO depth and latency stats
392 */
393 unsigned int io_u_map[FIO_IO_U_MAP_NR];
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394 unsigned int io_u_submit[FIO_IO_U_MAP_NR];
395 unsigned int io_u_complete[FIO_IO_U_MAP_NR];
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396 unsigned int io_u_lat_u[FIO_IO_U_LAT_U_NR];
397 unsigned int io_u_lat_m[FIO_IO_U_LAT_M_NR];
b3605062 398 unsigned long total_io_u[2];
30061b97 399 unsigned long short_io_u[2];
838bc709
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400 unsigned long total_submit;
401 unsigned long total_complete;
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402
403 unsigned long long io_bytes[2];
404 unsigned long runtime[2];
405 unsigned long total_run_time;
b2560f3c 406};
71619dc2 407
564ca972
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408struct bssplit {
409 unsigned int bs;
410 unsigned char perc;
411};
412
2dc1bbeb 413struct thread_options {
b1ec1da6 414 int pad;
61697c37 415 char *description;
b4692828 416 char *name;
ef899b63 417 char *directory;
13f8e2d2 418 char *filename;
2dc1bbeb 419 char *opendir;
09629a90 420 char *ioengine;
413dd459 421 enum td_ddir td_ddir;
211097b2 422 unsigned int ddir_nr;
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423 unsigned int iodepth;
424 unsigned int iodepth_low;
425 unsigned int iodepth_batch;
4950421a 426 unsigned int iodepth_batch_complete;
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427
428 unsigned long long size;
aa31f1f1 429 unsigned int fill_device;
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430 unsigned long long file_size_low;
431 unsigned long long file_size_high;
432 unsigned long long start_offset;
433
434 unsigned int bs[2];
2b7a01d0 435 unsigned int ba[2];
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436 unsigned int min_bs[2];
437 unsigned int max_bs[2];
720e84ad
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438 struct bssplit *bssplit[2];
439 unsigned int bssplit_nr[2];
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440
441 unsigned int nr_files;
442 unsigned int open_files;
4d4e80f2 443 enum file_lock_mode file_lock_mode;
29c1349f 444 unsigned int lockfile_batch;
e9c047a0 445
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446 unsigned int odirect;
447 unsigned int invalidate_cache;
448 unsigned int create_serialize;
449 unsigned int create_fsync;
814452bd 450 unsigned int create_on_open;
9158d2f7 451 unsigned int end_fsync;
afad68f7 452 unsigned int pre_read;
9158d2f7
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453 unsigned int sync_io;
454 unsigned int verify;
e84c73a8 455 unsigned int do_verify;
160b966d 456 unsigned int verifysort;
a59e170d
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457 unsigned int verify_interval;
458 unsigned int verify_offset;
90059d65
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459 unsigned int verify_pattern;
460 unsigned int verify_pattern_bytes;
a12a3b4d 461 unsigned int verify_fatal;
9158d2f7
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462 unsigned int use_thread;
463 unsigned int unlink;
464 unsigned int do_disk_util;
465 unsigned int override_sync;
466 unsigned int rand_repeatable;
467 unsigned int write_lat_log;
468 unsigned int write_bw_log;
bb8895e0 469 unsigned int norandommap;
2b386d25 470 unsigned int softrandommap;
690adba3 471 unsigned int bs_unaligned;
ebb1415f 472 unsigned int fsync_on_close;
e9c047a0 473
56bb17f2 474 unsigned int hugepage_size;
a00735e6 475 unsigned int rw_min_bs;
ebac4655 476 unsigned int thinktime;
48097d5c 477 unsigned int thinktime_spin;
9c1f7434 478 unsigned int thinktime_blocks;
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479 unsigned int fsync_blocks;
480 unsigned int start_delay;
0db26797 481 unsigned long long timeout;
721938ae 482 unsigned long long ramp_time;
ebac4655 483 unsigned int overwrite;
ebac4655 484 unsigned int bw_avg_time;
ebac4655 485 unsigned int loops;
20dc95c4
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486 unsigned long long zone_size;
487 unsigned long long zone_skip;
e9c047a0 488 enum fio_memtype mem_type;
2dc1bbeb 489
ebac4655 490 unsigned int stonewall;
b3d62a75 491 unsigned int new_group;
ebac4655 492 unsigned int numjobs;
ebac4655 493 os_cpu_mask_t cpumask;
375b2695 494 unsigned int cpumask_set;
aea47d44 495 unsigned int iolog;
a6ccc7be 496 unsigned int rwmixcycle;
e47f799f 497 unsigned int rwmix[2];
b6f4d880 498 unsigned int nice;
0aabe160 499 unsigned int file_service_type;
b2560f3c 500 unsigned int group_reporting;
d2f3ac35 501 unsigned int fadvise_hint;
e9459e5a 502 unsigned int zero_buffers;
5973cafb 503 unsigned int refill_buffers;
cf4464ca 504 unsigned int time_based;
9520ebb9
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505 unsigned int disable_clat;
506 unsigned int disable_slat;
507 unsigned int disable_bw;
993bf48b 508 unsigned int gtod_reduce;
be4ecfdf
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509 unsigned int gtod_cpu;
510 unsigned int gtod_offload;
aea47d44 511
076efc7c
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512 char *read_iolog_file;
513 char *write_iolog_file;
e3cedca7
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514 char *bw_log_file;
515 char *lat_log_file;
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516
517 /*
518 * Pre-run and post-run shell
519 */
520 char *exec_prerun;
521 char *exec_postrun;
522
523 unsigned int rate;
524 unsigned int ratemin;
525 unsigned int ratecycle;
526 unsigned int rate_iops;
527 unsigned int rate_iops_min;
528
529 char *ioscheduler;
530
531 /*
532 * CPU "io" cycle burner
533 */
534 unsigned int cpuload;
535 unsigned int cpucycle;
536};
537
e4e33258
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538#define FIO_VERROR_SIZE 128
539
2dc1bbeb
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540/*
541 * This describes a single thread/process executing a fio job.
542 */
543struct thread_data {
544 struct thread_options o;
e4e33258 545 char verror[FIO_VERROR_SIZE];
2dc1bbeb
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546 pthread_t thread;
547 int thread_number;
548 int groupid;
549 struct thread_stat ts;
126d65c6 550 struct fio_file **files;
dd87b2c9 551 unsigned int files_size;
2dc1bbeb
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552 unsigned int files_index;
553 unsigned int nr_open_files;
1020a139 554 unsigned int nr_done_files;
2dc1bbeb
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555 unsigned int nr_normal_files;
556 union {
557 unsigned int next_file;
558 os_random_state_t next_file_state;
559 };
560 int error;
20e354ef 561 int done;
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562 pid_t pid;
563 char *orig_buffer;
564 size_t orig_buffer_size;
565 volatile int terminate;
566 volatile int runstate;
567 unsigned int ioprio;
ac684785 568 unsigned int ioprio_set;
2dc1bbeb
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569 unsigned int last_was_sync;
570
571 char *mmapfile;
572 int mmapfd;
573
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574 void *iolog_buf;
575 FILE *iolog_f;
ebac4655 576
da86774e 577 char *sysfs_root;
da86774e 578
5bfc35d7
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579 unsigned long rand_seeds[6];
580
6dfd46b9
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581 os_random_state_t bsrange_state;
582 os_random_state_t verify_state;
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583
584 int shm_id;
585
e9c047a0
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586 /*
587 * IO engine hooks, contains everything needed to submit an io_u
588 * to any of the available IO engines.
589 */
2866c82d 590 struct ioengine_ops *io_ops;
ebac4655 591
e9c047a0
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592 /*
593 * Current IO depth and list of free and busy io_u's.
594 */
ebac4655 595 unsigned int cur_depth;
d8005759 596 unsigned int io_u_queued;
01743ee1
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597 struct flist_head io_u_freelist;
598 struct flist_head io_u_busylist;
599 struct flist_head io_u_requeues;
ebac4655 600
e9c047a0
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601 /*
602 * Rate state
603 */
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604 unsigned long rate_usec_cycle;
605 long rate_pending_usleep;
606 unsigned long rate_bytes;
4e991c23 607 unsigned long rate_blocks;
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608 struct timeval lastrate;
609
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610 unsigned long long total_io_size;
611
755200a3 612 unsigned long io_issues[2];
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613 unsigned long long io_blocks[2];
614 unsigned long long io_bytes[2];
48f5abd3 615 unsigned long long io_skip_bytes;
9104f874 616 unsigned long long this_io_bytes[2];
079ad09b 617 unsigned long long zone_bytes;
cdd18ad8 618 struct fio_mutex *mutex;
ebac4655 619
e9c047a0
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620 /*
621 * State for random io, a bitmap of blocks done vs not done
622 */
6dfd46b9 623 os_random_state_t random_state;
ebac4655 624
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625 struct timeval start; /* start of this loop */
626 struct timeval epoch; /* time job was started */
38d77cae 627 struct timeval rw_end[2];
a61eddec 628 struct timeval last_issue;
993bf48b
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629 struct timeval tv_cache;
630 unsigned int tv_cache_nr;
631 unsigned int tv_cache_mask;
38d77cae 632 unsigned int rw_end_set[2];
721938ae 633 unsigned int ramp_time_over;
ebac4655 634
e9c047a0
JA
635 /*
636 * read/write mixed workload state
637 */
6dfd46b9 638 os_random_state_t rwmix_state;
e4928662 639 unsigned long rwmix_issues;
e9c047a0 640 enum fio_ddir rwmix_ddir;
211097b2 641 unsigned int ddir_nr;
a6ccc7be 642
e9c047a0 643 /*
8de8f047
JA
644 * IO history logs for verification. We use a tree for sorting,
645 * if we are overwriting. Otherwise just use a fifo.
e9c047a0 646 */
4b87898e 647 struct rb_root io_hist_tree;
01743ee1 648 struct flist_head io_hist_list;
8de8f047
JA
649
650 /*
651 * For IO replaying
652 */
01743ee1 653 struct flist_head io_log_list;
433afcb4 654
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655 /*
656 * for fileservice, how often to switch to a new file
657 */
658 unsigned int file_service_nr;
659 unsigned int file_service_left;
660 struct fio_file *file_service_file;
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661
662 /*
663 * For generating file sizes
664 */
665 os_random_state_t file_size_state;
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666};
667
0aabe160 668/*
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669 * roundrobin available files, or choose one at random, or do each one
670 * serially.
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671 */
672enum {
673 FIO_FSERVICE_RANDOM = 1,
674 FIO_FSERVICE_RR = 2,
a086c257 675 FIO_FSERVICE_SEQ = 3,
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676};
677
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678/*
679 * when should interactive ETA output be generated
680 */
681enum {
682 FIO_ETA_AUTO,
683 FIO_ETA_ALWAYS,
684 FIO_ETA_NEVER,
685};
686
e1161c32 687#define __td_verror(td, err, msg, func) \
ebac4655 688 do { \
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689 if ((td)->error) \
690 break; \
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691 int e = (err); \
692 (td)->error = e; \
e1161c32 693 snprintf(td->verror, sizeof(td->verror) - 1, "file:%s:%d, func=%s, error=%s", __FILE__, __LINE__, (func), (msg)); \
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694 } while (0)
695
b990b5c0 696
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697#define td_verror(td, err, func) \
698 __td_verror((td), (err), strerror((err)), (func))
699#define td_vmsg(td, err, msg, func) \
700 __td_verror((td), (err), (msg), (func))
b990b5c0 701
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702extern int exitall_on_terminate;
703extern int thread_number;
9cedf167 704extern int nr_process, nr_thread;
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705extern int shm_id;
706extern int groupid;
c6ae0a5b 707extern int terse_output;
53cdc686 708extern int temp_stall_ts;
1e97cce9 709extern unsigned long long mlock_size;
cfc99db7 710extern unsigned long page_mask, page_size;
4241ea8f 711extern int read_only;
e592a06b 712extern int eta_print;
d3eeeabc 713extern unsigned long done_secs;
01f06b63 714extern char *job_section;
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715extern int fio_gtod_offload;
716extern int fio_gtod_cpu;
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717
718extern struct thread_data *threads;
719
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720#define td_read(td) ((td)->o.td_ddir & TD_DDIR_READ)
721#define td_write(td) ((td)->o.td_ddir & TD_DDIR_WRITE)
722#define td_rw(td) (((td)->o.td_ddir & TD_DDIR_RW) == TD_DDIR_RW)
723#define td_random(td) ((td)->o.td_ddir & TD_DDIR_RAND)
303032ae 724#define file_randommap(td, f) (!(td)->o.norandommap && (f)->file_map)
ebac4655 725
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726static inline void fio_ro_check(struct thread_data *td, struct io_u *io_u)
727{
728 assert(!(io_u->ddir == DDIR_WRITE && !td_write(td)));
729}
730
de605666 731#define BLOCKS_PER_MAP (8 * sizeof(int))
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732#define TO_MAP_BLOCK(f, b) (b)
733#define RAND_MAP_IDX(f, b) (TO_MAP_BLOCK(f, b) / BLOCKS_PER_MAP)
734#define RAND_MAP_BIT(f, b) (TO_MAP_BLOCK(f, b) & (BLOCKS_PER_MAP - 1))
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735
736#define MAX_JOBS (1024)
737
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738static inline int should_fsync(struct thread_data *td)
739{
740 if (td->last_was_sync)
741 return 0;
2dc1bbeb 742 if (td->o.odirect)
87dc1ab1 743 return 0;
2dc1bbeb 744 if (td_write(td) || td_rw(td) || td->o.override_sync)
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745 return 1;
746
747 return 0;
748}
749
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750/*
751 * Disk utils as read in /sys/block/<dev>/stat
752 */
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753struct disk_util_stat {
754 unsigned ios[2];
755 unsigned merges[2];
756 unsigned long long sectors[2];
757 unsigned ticks[2];
758 unsigned io_ticks;
759 unsigned time_in_queue;
760};
761
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762/*
763 * Per-device disk util management
764 */
ebac4655 765struct disk_util {
01743ee1 766 struct flist_head list;
67423013
ST
767 /* If this disk is a slave, hook it into the master's
768 * list using this head.
769 */
770 struct flist_head slavelist;
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771
772 char *name;
e11c410c 773 char *sysfs_root;
ebac4655 774 char path[256];
07e5b264 775 int major, minor;
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776
777 struct disk_util_stat dus;
778 struct disk_util_stat last_dus;
779
67423013
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780 /* For software raids, this entry maintains pointers to the
781 * entries for the slave devices. The disk_util entries for
782 * the slaves devices should primarily be maintained through
783 * the disk_list list, i.e. for memory allocation and
784 * de-allocation, etc. Whereas this list should be used only
785 * for aggregating a software RAID's disk util figures.
786 */
787 struct flist_head slaves;
788
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789 unsigned long msec;
790 struct timeval time;
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791
792 struct fio_mutex *lock;
793 unsigned long users;
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794};
795
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796static inline void disk_util_inc(struct disk_util *du)
797{
798 if (du) {
799 fio_mutex_down(du->lock);
800 du->users++;
801 fio_mutex_up(du->lock);
802 }
803}
804
805static inline void disk_util_dec(struct disk_util *du)
806{
807 if (du) {
808 fio_mutex_down(du->lock);
809 du->users--;
810 fio_mutex_up(du->lock);
811 }
812}
813
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814#define DISK_UTIL_MSEC (250)
815
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816/*
817 * Log exports
818 */
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819enum file_log_act {
820 FIO_LOG_ADD_FILE,
821 FIO_LOG_OPEN_FILE,
822 FIO_LOG_CLOSE_FILE,
f718273e 823 FIO_LOG_UNLINK_FILE,
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824};
825
72cb971b 826extern int __must_check read_iolog_get(struct thread_data *, struct io_u *);
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827extern void log_io_u(struct thread_data *, struct io_u *);
828extern void log_file(struct thread_data *, struct fio_file *, enum file_log_act);
72cb971b 829extern int __must_check init_iolog(struct thread_data *td);
6796209a 830extern void log_io_piece(struct thread_data *, struct io_u *);
691c8fb0 831extern void queue_io_piece(struct thread_data *, struct io_piece *);
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832extern void prune_io_piece_log(struct thread_data *);
833extern void write_iolog_close(struct thread_data *);
834
835/*
836 * Logging
837 */
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838extern void add_clat_sample(struct thread_data *, enum fio_ddir, unsigned long,
839 unsigned int);
840extern void add_slat_sample(struct thread_data *, enum fio_ddir, unsigned long,
841 unsigned int);
842extern void add_bw_sample(struct thread_data *, enum fio_ddir, unsigned int,
843 struct timeval *);
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844extern void show_run_stats(void);
845extern void init_disk_util(struct thread_data *);
846extern void update_rusage_stat(struct thread_data *);
847extern void update_io_ticks(void);
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848extern void setup_log(struct io_log **);
849extern void finish_log(struct thread_data *, struct io_log *, const char *);
e3cedca7 850extern void finish_log_named(struct thread_data *, struct io_log *, const char *, const char *);
bb3884d8 851extern void __finish_log(struct io_log *, const char *);
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852extern struct io_log *agg_io_log[2];
853extern int write_bw_log;
306ddc97 854extern void add_agg_sample(unsigned long, enum fio_ddir, unsigned int);
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855
856/*
857 * Time functions
858 */
10927316
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859extern unsigned long long utime_since(struct timeval *, struct timeval *);
860extern unsigned long long utime_since_now(struct timeval *);
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861extern unsigned long mtime_since(struct timeval *, struct timeval *);
862extern unsigned long mtime_since_now(struct timeval *);
863extern unsigned long time_since_now(struct timeval *);
263e529f 864extern unsigned long mtime_since_genesis(void);
6dd6f2cd 865extern void usec_spin(unsigned int);
6796209a 866extern void usec_sleep(struct thread_data *, unsigned long);
413dd459 867extern void rate_throttle(struct thread_data *, unsigned long, unsigned int);
6043c579 868extern void fill_start_time(struct timeval *);
02bcaa8c 869extern void fio_gettime(struct timeval *, void *);
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870extern void fio_gtod_init(void);
871extern void fio_gtod_update(void);
a2f77c9f 872extern void set_genesis_time(void);
721938ae 873extern int ramp_time_over(struct thread_data *);
b29ee5b3 874extern int in_ramp_time(struct thread_data *);
6796209a 875
8914a9d8 876/*
214e1eca 877 * Init/option functions
8914a9d8 878 */
72cb971b 879extern int __must_check parse_options(int, char **);
3b8b7135 880extern int fio_options_parse(struct thread_data *, char **, int);
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881extern int fio_cmd_option_parse(struct thread_data *, const char *, char *);
882extern void fio_fill_default_options(struct thread_data *);
883extern int fio_show_option_help(const char *);
884extern void fio_options_dup_and_init(struct option *);
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885extern void options_mem_dupe(struct thread_data *);
886extern void options_mem_free(struct thread_data *);
5bfc35d7 887extern void td_fill_rand_seeds(struct thread_data *);
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888#define FIO_GETOPT_JOB 0x89988998
889#define FIO_NR_OPTIONS 128
8914a9d8 890
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891/*
892 * File setup/shutdown
893 */
894extern void close_files(struct thread_data *);
24ffd2c2 895extern void close_and_free_files(struct thread_data *);
b2fdda43 896extern int __must_check setup_files(struct thread_data *);
b2fdda43 897extern int __must_check file_invalidate_cache(struct thread_data *, struct fio_file *);
b5af8293 898extern int __must_check generic_open_file(struct thread_data *, struct fio_file *);
6977bcd0 899extern int __must_check generic_close_file(struct thread_data *, struct fio_file *);
df9c26b1 900extern int __must_check generic_get_file_size(struct thread_data *, struct fio_file *);
afad68f7 901extern int __must_check pre_read_files(struct thread_data *);
f29b25a3 902extern int add_file(struct thread_data *, const char *);
0ad920e7 903extern void get_file(struct fio_file *);
6977bcd0 904extern int __must_check put_file(struct thread_data *, struct fio_file *);
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905extern void lock_file(struct thread_data *, struct fio_file *, enum fio_ddir);
906extern void unlock_file(struct thread_data *, struct fio_file *);
907extern void unlock_file_all(struct thread_data *, struct fio_file *);
bbf6b540 908extern int add_dir_files(struct thread_data *, const char *);
68727076 909extern int init_random_map(struct thread_data *);
cade3ef4 910extern void dup_files(struct thread_data *, struct thread_data *);
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911extern int get_fileno(struct thread_data *, const char *);
912extern void free_release_files(struct thread_data *);
53cdc686 913
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914/*
915 * ETA/status stuff
916 */
917extern void print_thread_status(void);
918extern void print_status_init(int);
919
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920/*
921 * disk util stuff
922 */
923#ifdef FIO_HAVE_DISK_UTIL
924extern void show_disk_util(void);
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925extern void init_disk_util(struct thread_data *);
926extern void update_io_ticks(void);
927#else
928#define show_disk_util()
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929#define init_disk_util(td)
930#define update_io_ticks()
931#endif
932
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933/*
934 * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it
935 * will never back again. It may cycle between running/verififying/fsyncing.
936 * Once the thread reaches TD_EXITED, it is just waiting for the core to
937 * reap it.
938 */
939enum {
940 TD_NOT_CREATED = 0,
941 TD_CREATED,
942 TD_INITIALIZED,
b29ee5b3 943 TD_RAMP,
263e529f 944 TD_RUNNING,
b0f65863 945 TD_PRE_READING,
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946 TD_VERIFYING,
947 TD_FSYNCING,
948 TD_EXITED,
949 TD_REAPED,
950};
951
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952extern void td_set_runstate(struct thread_data *, int);
953
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954/*
955 * Verify helpers
956 */
957extern void populate_verify_io_u(struct thread_data *, struct io_u *);
b2fdda43 958extern int __must_check get_next_verify(struct thread_data *td, struct io_u *);
36690c9b 959extern int __must_check verify_io_u(struct thread_data *, struct io_u *);
e29d1b70 960
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961/*
962 * Memory helpers
963 */
b2fdda43 964extern int __must_check fio_pin_memory(void);
2f9ade3c 965extern void fio_unpin_memory(void);
b2fdda43 966extern int __must_check allocate_io_mem(struct thread_data *);
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967extern void free_io_mem(struct thread_data *);
968
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969/*
970 * io unit handling
971 */
01743ee1 972#define queue_full(td) flist_empty(&(td)->io_u_freelist)
10ba535a 973extern struct io_u *__get_io_u(struct thread_data *);
3d7c391d 974extern struct io_u *get_io_u(struct thread_data *);
10ba535a 975extern void put_io_u(struct thread_data *, struct io_u *);
755200a3 976extern void requeue_io_u(struct thread_data *, struct io_u **);
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977extern long __must_check io_u_sync_complete(struct thread_data *, struct io_u *);
978extern long __must_check io_u_queued_complete(struct thread_data *, int);
7e77dd02 979extern void io_u_queued(struct thread_data *, struct io_u *);
5451792e 980extern void io_u_log_error(struct thread_data *, struct io_u *);
d8005759 981extern void io_u_mark_depth(struct thread_data *, unsigned int);
5973cafb 982extern void io_u_fill_buffer(struct thread_data *td, struct io_u *, unsigned int);
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983void io_u_mark_complete(struct thread_data *, unsigned int);
984void io_u_mark_submit(struct thread_data *, unsigned int);
10ba535a 985
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986/*
987 * Reset stats after ramp time completes
988 */
989extern void reset_all_stats(struct thread_data *);
990
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991/*
992 * io engine entry points
993 */
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994extern int __must_check td_io_init(struct thread_data *);
995extern int __must_check td_io_prep(struct thread_data *, struct io_u *);
996extern int __must_check td_io_queue(struct thread_data *, struct io_u *);
997extern int __must_check td_io_sync(struct thread_data *, struct fio_file *);
e7d2e616 998extern int __must_check td_io_getevents(struct thread_data *, unsigned int, unsigned int, struct timespec *);
b2fdda43 999extern int __must_check td_io_commit(struct thread_data *);
b5af8293 1000extern int __must_check td_io_open_file(struct thread_data *, struct fio_file *);
6977bcd0 1001extern int td_io_close_file(struct thread_data *, struct fio_file *);
df9c26b1 1002extern int __must_check td_io_get_file_size(struct thread_data *, struct fio_file *);
10ba535a 1003
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1004/*
1005 * blktrace support
1006 */
5e62c22a 1007#ifdef FIO_HAVE_BLKTRACE
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1008extern int is_blktrace(const char *);
1009extern int load_blktrace(struct thread_data *, const char *);
5e62c22a 1010#endif
fb7b71a3 1011
2866c82d 1012struct ioengine_ops {
01743ee1 1013 struct flist_head list;
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1014 char name[16];
1015 int version;
1016 int flags;
ea2877a4 1017 int (*setup)(struct thread_data *);
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1018 int (*init)(struct thread_data *);
1019 int (*prep)(struct thread_data *, struct io_u *);
1020 int (*queue)(struct thread_data *, struct io_u *);
755200a3 1021 int (*commit)(struct thread_data *);
e7d2e616 1022 int (*getevents)(struct thread_data *, unsigned int, unsigned int, struct timespec *);
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1023 struct io_u *(*event)(struct thread_data *, int);
1024 int (*cancel)(struct thread_data *, struct io_u *);
1025 void (*cleanup)(struct thread_data *);
b5af8293 1026 int (*open_file)(struct thread_data *, struct fio_file *);
6977bcd0 1027 int (*close_file)(struct thread_data *, struct fio_file *);
df9c26b1 1028 int (*get_file_size)(struct thread_data *, struct fio_file *);
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1029 void *data;
1030 void *dlhandle;
1031};
1032
df9c26b1 1033#define FIO_IOOPS_VERSION 10
2866c82d 1034
b4692828 1035extern struct ioengine_ops *load_ioengine(struct thread_data *, const char *);
b2fdda43 1036extern void register_ioengine(struct ioengine_ops *);
5f350952 1037extern void unregister_ioengine(struct ioengine_ops *);
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1038extern void close_ioengine(struct thread_data *);
1039
1040/*
1041 * Mark unused variables passed to ops functions as unused, to silence gcc
1042 */
1043#define fio_unused __attribute((__unused__))
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1044#define fio_init __attribute__((constructor))
1045#define fio_exit __attribute__((destructor))
2866c82d 1046
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1047#define for_each_td(td, i) \
1048 for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++)
53cdc686 1049#define for_each_file(td, f, i) \
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1050 if ((td)->files_index) \
1051 for ((i) = 0, (f) = (td)->files[0]; \
1052 (i) < (td)->o.nr_files && ((f) = (td)->files[i]) != NULL; \
1053 (i)++)
53cdc686 1054
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1055#define fio_assert(td, cond) do { \
1056 if (!(cond)) { \
340fd243 1057 int *__foo = NULL; \
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1058 fprintf(stderr, "file:%s:%d, assert %s failed\n", __FILE__, __LINE__, #cond); \
1059 (td)->runstate = TD_EXITED; \
437c9b71 1060 (td)->error = EFAULT; \
340fd243 1061 *__foo = 0; \
0032bf9f
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1062 } \
1063} while (0)
1064
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1065static inline void fio_file_reset(struct fio_file *f)
1066{
1067 f->last_free_lookup = 0;
1068 f->last_pos = f->file_offset;
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1069 if (f->file_map)
1070 memset(f->file_map, 0, f->num_maps * sizeof(int));
009bd847
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1071}
1072
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1073static inline void clear_error(struct thread_data *td)
1074{
1075 td->error = 0;
1076 td->verror[0] = '\0';
1077}
1078
79e48f72 1079#ifdef FIO_INC_DEBUG
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1080static inline void dprint_io_u(struct io_u *io_u, const char *p)
1081{
1082 struct fio_file *f = io_u->file;
1083
1084 dprint(FD_IO, "%s: io_u %p: off=%llu/len=%lu/ddir=%d", p, io_u,
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1085 (unsigned long long) io_u->offset,
1086 io_u->buflen, io_u->ddir);
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1087 if (fio_debug & (1 << FD_IO)) {
1088 if (f)
1089 log_info("/%s", f->file_name);
1090
1091 log_info("\n");
1092 }
2ba1c290 1093}
79e48f72 1094#else
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1095#define dprint_io_u(io_u, p)
1096#endif
2ba1c290 1097
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1098static inline int fio_fill_issue_time(struct thread_data *td)
1099{
1100 if (td->o.read_iolog_file ||
1101 !td->o.disable_clat || !td->o.disable_slat || !td->o.disable_bw)
1102 return 1;
1103
1104 return 0;
1105}
1106
ebac4655 1107#endif