Add total latency log
[fio.git] / fio.h
CommitLineData
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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>
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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"
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22#include "arch/arch.h"
23#include "os/os.h"
07739b57 24#include "mutex.h"
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25#include "log.h"
26#include "debug.h"
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27#include "file.h"
28#include "io_ddir.h"
dcefb588 29#include "ioengine.h"
5995a6a4 30#include "iolog.h"
c5c8bd5c 31#include "helpers.h"
07b3232d 32#include "options.h"
7eb36574 33#include "profile.h"
c223da83 34#include "time.h"
ebac4655 35
609342ff
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36#ifdef FIO_HAVE_GUASI
37#include <guasi.h>
38#endif
39
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40#ifdef FIO_HAVE_SOLARISAIO
41#include <sys/asynch.h>
42#endif
43
ebac4655 44struct group_run_stats {
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45 unsigned long long max_run[2], min_run[2];
46 unsigned long long max_bw[2], min_bw[2];
e9b2a3fa 47 unsigned long long io_kb[2];
9104f874 48 unsigned long long agg[2];
90fef2d1 49 unsigned int kb_base;
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50};
51
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52/*
53 * What type of allocation to use for io buffers
54 */
55enum fio_memtype {
56 MEM_MALLOC = 0, /* ordinary malloc */
57 MEM_SHM, /* use shared memory segments */
74b025b0 58 MEM_SHMHUGE, /* use shared memory segments with huge pages */
e9c047a0 59 MEM_MMAP, /* use anonynomous mmap */
d0bdaf49 60 MEM_MMAPHUGE, /* memory mapped huge file */
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61};
62
b2560f3c
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63/*
64 * How many depth levels to log
65 */
66#define FIO_IO_U_MAP_NR 8
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67#define FIO_IO_U_LAT_U_NR 10
68#define FIO_IO_U_LAT_M_NR 12
b2560f3c 69
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70#define MAX_PATTERN_SIZE 512
71
079ad09b 72struct thread_stat {
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73 char *name;
74 char *verror;
75 int error;
76 int groupid;
77 pid_t pid;
78 char *description;
6586ee89 79 int members;
756867bd 80
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81 struct io_log *slat_log;
82 struct io_log *clat_log;
02af0988 83 struct io_log *lat_log;
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84 struct io_log *bw_log;
85
86 /*
87 * bandwidth and latency stats
88 */
89 struct io_stat clat_stat[2]; /* completion latency */
90 struct io_stat slat_stat[2]; /* submission latency */
02af0988 91 struct io_stat lat_stat[2]; /* total latency */
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92 struct io_stat bw_stat[2]; /* bandwidth stats */
93
94 unsigned long long stat_io_bytes[2];
95 struct timeval stat_sample_time[2];
96
97 /*
98 * fio system usage accounting
99 */
100 struct rusage ru_start;
101 struct rusage ru_end;
102 unsigned long usr_time;
103 unsigned long sys_time;
104 unsigned long ctx;
81887d5d 105 unsigned long minf, majf;
079ad09b 106
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107 /*
108 * IO depth and latency stats
109 */
110 unsigned int io_u_map[FIO_IO_U_MAP_NR];
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111 unsigned int io_u_submit[FIO_IO_U_MAP_NR];
112 unsigned int io_u_complete[FIO_IO_U_MAP_NR];
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113 unsigned int io_u_lat_u[FIO_IO_U_LAT_U_NR];
114 unsigned int io_u_lat_m[FIO_IO_U_LAT_M_NR];
b3605062 115 unsigned long total_io_u[2];
30061b97 116 unsigned long short_io_u[2];
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117 unsigned long total_submit;
118 unsigned long total_complete;
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119
120 unsigned long long io_bytes[2];
121 unsigned long runtime[2];
122 unsigned long total_run_time;
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123
124 /*
125 * IO Error related stats
126 */
127 unsigned continue_on_error;
128 unsigned long total_err_count;
129 int first_error;
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130
131 unsigned int kb_base;
b2560f3c 132};
71619dc2 133
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134struct bssplit {
135 unsigned int bs;
136 unsigned char perc;
137};
138
2dc1bbeb 139struct thread_options {
b1ec1da6 140 int pad;
61697c37 141 char *description;
b4692828 142 char *name;
ef899b63 143 char *directory;
13f8e2d2 144 char *filename;
2dc1bbeb 145 char *opendir;
09629a90 146 char *ioengine;
413dd459 147 enum td_ddir td_ddir;
90fef2d1 148 unsigned int kb_base;
211097b2 149 unsigned int ddir_nr;
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150 unsigned int iodepth;
151 unsigned int iodepth_low;
152 unsigned int iodepth_batch;
4950421a 153 unsigned int iodepth_batch_complete;
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154
155 unsigned long long size;
aa31f1f1 156 unsigned int fill_device;
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157 unsigned long long file_size_low;
158 unsigned long long file_size_high;
159 unsigned long long start_offset;
160
161 unsigned int bs[2];
2b7a01d0 162 unsigned int ba[2];
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163 unsigned int min_bs[2];
164 unsigned int max_bs[2];
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165 struct bssplit *bssplit[2];
166 unsigned int bssplit_nr[2];
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167
168 unsigned int nr_files;
169 unsigned int open_files;
4d4e80f2 170 enum file_lock_mode file_lock_mode;
29c1349f 171 unsigned int lockfile_batch;
e9c047a0 172
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173 unsigned int odirect;
174 unsigned int invalidate_cache;
175 unsigned int create_serialize;
176 unsigned int create_fsync;
814452bd 177 unsigned int create_on_open;
9158d2f7 178 unsigned int end_fsync;
afad68f7 179 unsigned int pre_read;
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180 unsigned int sync_io;
181 unsigned int verify;
e84c73a8 182 unsigned int do_verify;
160b966d 183 unsigned int verifysort;
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184 unsigned int verify_interval;
185 unsigned int verify_offset;
0e92f873 186 char verify_pattern[MAX_PATTERN_SIZE];
90059d65 187 unsigned int verify_pattern_bytes;
a12a3b4d 188 unsigned int verify_fatal;
e8462bd8 189 unsigned int verify_async;
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190 unsigned long long verify_backlog;
191 unsigned int verify_batch;
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192 unsigned int use_thread;
193 unsigned int unlink;
194 unsigned int do_disk_util;
195 unsigned int override_sync;
196 unsigned int rand_repeatable;
197 unsigned int write_lat_log;
198 unsigned int write_bw_log;
bb8895e0 199 unsigned int norandommap;
2b386d25 200 unsigned int softrandommap;
690adba3 201 unsigned int bs_unaligned;
ebb1415f 202 unsigned int fsync_on_close;
e9c047a0 203
56bb17f2 204 unsigned int hugepage_size;
a00735e6 205 unsigned int rw_min_bs;
ebac4655 206 unsigned int thinktime;
48097d5c 207 unsigned int thinktime_spin;
9c1f7434 208 unsigned int thinktime_blocks;
ebac4655 209 unsigned int fsync_blocks;
5f9099ea 210 unsigned int fdatasync_blocks;
ebac4655 211 unsigned int start_delay;
0db26797 212 unsigned long long timeout;
721938ae 213 unsigned long long ramp_time;
ebac4655 214 unsigned int overwrite;
ebac4655 215 unsigned int bw_avg_time;
ebac4655 216 unsigned int loops;
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217 unsigned long long zone_size;
218 unsigned long long zone_skip;
e9c047a0 219 enum fio_memtype mem_type;
d529ee19 220 unsigned int mem_align;
2dc1bbeb 221
ebac4655 222 unsigned int stonewall;
b3d62a75 223 unsigned int new_group;
ebac4655 224 unsigned int numjobs;
ebac4655 225 os_cpu_mask_t cpumask;
375b2695 226 unsigned int cpumask_set;
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227 os_cpu_mask_t verify_cpumask;
228 unsigned int verify_cpumask_set;
aea47d44 229 unsigned int iolog;
a6ccc7be 230 unsigned int rwmixcycle;
e47f799f 231 unsigned int rwmix[2];
b6f4d880 232 unsigned int nice;
0aabe160 233 unsigned int file_service_type;
b2560f3c 234 unsigned int group_reporting;
d2f3ac35 235 unsigned int fadvise_hint;
7bc8c2cf 236 unsigned int fallocate;
e9459e5a 237 unsigned int zero_buffers;
5973cafb 238 unsigned int refill_buffers;
cf4464ca 239 unsigned int time_based;
02af0988 240 unsigned int disable_lat;
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241 unsigned int disable_clat;
242 unsigned int disable_slat;
243 unsigned int disable_bw;
993bf48b 244 unsigned int gtod_reduce;
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245 unsigned int gtod_cpu;
246 unsigned int gtod_offload;
c223da83 247 enum fio_cs clocksource;
aea47d44 248
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249 char *read_iolog_file;
250 char *write_iolog_file;
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251 char *bw_log_file;
252 char *lat_log_file;
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253
254 /*
255 * Pre-run and post-run shell
256 */
257 char *exec_prerun;
258 char *exec_postrun;
259
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260 unsigned int rate[2];
261 unsigned int ratemin[2];
2dc1bbeb 262 unsigned int ratecycle;
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263 unsigned int rate_iops[2];
264 unsigned int rate_iops_min[2];
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265
266 char *ioscheduler;
267
268 /*
269 * CPU "io" cycle burner
270 */
271 unsigned int cpuload;
272 unsigned int cpucycle;
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273
274 /*
275 * I/O Error handling
276 */
277 unsigned int continue_on_error;
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278
279 /*
280 * Benchmark profile type
281 */
79d16311 282 char *profile;
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283
284 /*
285 * blkio cgroup support
286 */
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287 char *cgroup;
288 unsigned int cgroup_weight;
7de87099 289 unsigned int cgroup_nodelete;
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290
291 unsigned int uid;
292 unsigned int gid;
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293
294 unsigned int sync_file_range;
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295};
296
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297#define FIO_VERROR_SIZE 128
298
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299/*
300 * This describes a single thread/process executing a fio job.
301 */
302struct thread_data {
303 struct thread_options o;
e4e33258 304 char verror[FIO_VERROR_SIZE];
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305 pthread_t thread;
306 int thread_number;
307 int groupid;
308 struct thread_stat ts;
126d65c6 309 struct fio_file **files;
dd87b2c9 310 unsigned int files_size;
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311 unsigned int files_index;
312 unsigned int nr_open_files;
1020a139 313 unsigned int nr_done_files;
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314 unsigned int nr_normal_files;
315 union {
316 unsigned int next_file;
317 os_random_state_t next_file_state;
318 };
319 int error;
20e354ef 320 int done;
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321 pid_t pid;
322 char *orig_buffer;
323 size_t orig_buffer_size;
324 volatile int terminate;
325 volatile int runstate;
326 unsigned int ioprio;
ac684785 327 unsigned int ioprio_set;
2dc1bbeb 328 unsigned int last_was_sync;
9e144189 329 enum fio_ddir last_ddir;
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330
331 char *mmapfile;
332 int mmapfd;
333
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334 void *iolog_buf;
335 FILE *iolog_f;
ebac4655 336
da86774e 337 char *sysfs_root;
da86774e 338
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339 unsigned long rand_seeds[6];
340
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341 os_random_state_t bsrange_state;
342 os_random_state_t verify_state;
ebac4655 343
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344 unsigned int verify_batch;
345
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346 int shm_id;
347
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348 /*
349 * IO engine hooks, contains everything needed to submit an io_u
350 * to any of the available IO engines.
351 */
2866c82d 352 struct ioengine_ops *io_ops;
ebac4655 353
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354 /*
355 * Current IO depth and list of free and busy io_u's.
356 */
ebac4655 357 unsigned int cur_depth;
d8005759 358 unsigned int io_u_queued;
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359 struct flist_head io_u_freelist;
360 struct flist_head io_u_busylist;
361 struct flist_head io_u_requeues;
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362 pthread_mutex_t io_u_lock;
363 pthread_cond_t free_cond;
364
365 /*
366 * async verify offload
367 */
368 struct flist_head verify_list;
369 pthread_t *verify_threads;
370 unsigned int nr_verify_threads;
371 pthread_cond_t verify_cond;
372 int verify_thread_exit;
ebac4655 373
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374 /*
375 * Rate state
376 */
ba3e4e0c 377 unsigned long rate_nsec_cycle[2];
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378 long rate_pending_usleep[2];
379 unsigned long rate_bytes[2];
380 unsigned long rate_blocks[2];
381 struct timeval lastrate[2];
ebac4655 382
ebac4655 383 unsigned long long total_io_size;
2e3bd4c2 384 unsigned long long fill_device_size;
ebac4655 385
755200a3 386 unsigned long io_issues[2];
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387 unsigned long long io_blocks[2];
388 unsigned long long io_bytes[2];
48f5abd3 389 unsigned long long io_skip_bytes;
9104f874 390 unsigned long long this_io_bytes[2];
079ad09b 391 unsigned long long zone_bytes;
cdd18ad8 392 struct fio_mutex *mutex;
ebac4655 393
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394 /*
395 * State for random io, a bitmap of blocks done vs not done
396 */
6dfd46b9 397 os_random_state_t random_state;
ebac4655 398
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399 struct timeval start; /* start of this loop */
400 struct timeval epoch; /* time job was started */
a61eddec 401 struct timeval last_issue;
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402 struct timeval tv_cache;
403 unsigned int tv_cache_nr;
404 unsigned int tv_cache_mask;
721938ae 405 unsigned int ramp_time_over;
ebac4655 406
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407 /*
408 * read/write mixed workload state
409 */
6dfd46b9 410 os_random_state_t rwmix_state;
e4928662 411 unsigned long rwmix_issues;
e9c047a0 412 enum fio_ddir rwmix_ddir;
211097b2 413 unsigned int ddir_nr;
a6ccc7be 414
e9c047a0 415 /*
8de8f047
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416 * IO history logs for verification. We use a tree for sorting,
417 * if we are overwriting. Otherwise just use a fifo.
e9c047a0 418 */
4b87898e 419 struct rb_root io_hist_tree;
01743ee1 420 struct flist_head io_hist_list;
9e144189 421 unsigned long io_hist_len;
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422
423 /*
424 * For IO replaying
425 */
01743ee1 426 struct flist_head io_log_list;
433afcb4 427
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428 /*
429 * for fileservice, how often to switch to a new file
430 */
431 unsigned int file_service_nr;
432 unsigned int file_service_left;
433 struct fio_file *file_service_file;
9c60ce64 434
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435 unsigned int sync_file_range_nr;
436
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437 /*
438 * For generating file sizes
439 */
440 os_random_state_t file_size_state;
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441
442 /*
443 * Error counts
444 */
445 unsigned int total_err_count;
446 int first_error;
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447
448 /*
449 * Can be overloaded by profiles
450 */
7eb36574 451 struct prof_io_ops prof_io_ops;
58c55ba0 452 void *prof_data;
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453};
454
e592a06b
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455/*
456 * when should interactive ETA output be generated
457 */
458enum {
459 FIO_ETA_AUTO,
460 FIO_ETA_ALWAYS,
461 FIO_ETA_NEVER,
462};
463
e1161c32 464#define __td_verror(td, err, msg, func) \
ebac4655 465 do { \
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466 if ((td)->error) \
467 break; \
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468 int e = (err); \
469 (td)->error = e; \
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470 if (!(td)->first_error) \
471 snprintf(td->verror, sizeof(td->verror) - 1, "file:%s:%d, func=%s, error=%s", __FILE__, __LINE__, (func), (msg)); \
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472 } while (0)
473
b990b5c0 474
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475#define td_clear_error(td) \
476 (td)->error = 0;
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477#define td_verror(td, err, func) \
478 __td_verror((td), (err), strerror((err)), (func))
479#define td_vmsg(td, err, msg, func) \
480 __td_verror((td), (err), (msg), (func))
b990b5c0 481
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482extern int exitall_on_terminate;
483extern int thread_number;
9cedf167 484extern int nr_process, nr_thread;
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485extern int shm_id;
486extern int groupid;
c6ae0a5b 487extern int terse_output;
53cdc686 488extern int temp_stall_ts;
1e97cce9 489extern unsigned long long mlock_size;
cfc99db7 490extern unsigned long page_mask, page_size;
4241ea8f 491extern int read_only;
e592a06b 492extern int eta_print;
d3eeeabc 493extern unsigned long done_secs;
01f06b63 494extern char *job_section;
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495extern int fio_gtod_offload;
496extern int fio_gtod_cpu;
c223da83 497extern enum fio_cs fio_clock_source;
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498
499extern struct thread_data *threads;
500
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501static inline void fio_ro_check(struct thread_data *td, struct io_u *io_u)
502{
503 assert(!(io_u->ddir == DDIR_WRITE && !td_write(td)));
504}
505
de605666 506#define BLOCKS_PER_MAP (8 * sizeof(int))
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507#define TO_MAP_BLOCK(f, b) (b)
508#define RAND_MAP_IDX(f, b) (TO_MAP_BLOCK(f, b) / BLOCKS_PER_MAP)
509#define RAND_MAP_BIT(f, b) (TO_MAP_BLOCK(f, b) & (BLOCKS_PER_MAP - 1))
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510
511#define MAX_JOBS (1024)
512
1ec99eea 513#define td_non_fatal_error(e) ((e) == EIO || (e) == EILSEQ)
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514
515static inline void update_error_count(struct thread_data *td, int err)
516{
517 td->total_err_count++;
518 if (td->total_err_count == 1)
519 td->first_error = err;
520}
521
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522static inline int should_fsync(struct thread_data *td)
523{
524 if (td->last_was_sync)
525 return 0;
2dc1bbeb 526 if (td->o.odirect)
87dc1ab1 527 return 0;
2dc1bbeb 528 if (td_write(td) || td_rw(td) || td->o.override_sync)
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529 return 1;
530
531 return 0;
532}
533
8914a9d8 534/*
214e1eca 535 * Init/option functions
8914a9d8 536 */
72cb971b 537extern int __must_check parse_options(int, char **);
3b8b7135 538extern int fio_options_parse(struct thread_data *, char **, int);
74929ac2 539extern void fio_keywords_init(void);
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540extern int fio_cmd_option_parse(struct thread_data *, const char *, char *);
541extern void fio_fill_default_options(struct thread_data *);
542extern int fio_show_option_help(const char *);
543extern void fio_options_dup_and_init(struct option *);
d23bb327
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544extern void options_mem_dupe(struct thread_data *);
545extern void options_mem_free(struct thread_data *);
5bfc35d7 546extern void td_fill_rand_seeds(struct thread_data *);
79d16311 547extern void add_job_opts(const char **);
214e1eca 548#define FIO_GETOPT_JOB 0x89988998
07b3232d 549#define FIO_NR_OPTIONS (FIO_MAX_OPTS + 128)
8914a9d8 550
263e529f
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551/*
552 * ETA/status stuff
553 */
554extern void print_thread_status(void);
555extern void print_status_init(int);
556
557/*
558 * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it
559 * will never back again. It may cycle between running/verififying/fsyncing.
560 * Once the thread reaches TD_EXITED, it is just waiting for the core to
561 * reap it.
562 */
563enum {
564 TD_NOT_CREATED = 0,
565 TD_CREATED,
566 TD_INITIALIZED,
b29ee5b3 567 TD_RAMP,
263e529f 568 TD_RUNNING,
b0f65863 569 TD_PRE_READING,
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570 TD_VERIFYING,
571 TD_FSYNCING,
572 TD_EXITED,
573 TD_REAPED,
574};
575
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576extern void td_set_runstate(struct thread_data *, int);
577
2f9ade3c
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578/*
579 * Memory helpers
580 */
b2fdda43 581extern int __must_check fio_pin_memory(void);
2f9ade3c 582extern void fio_unpin_memory(void);
b2fdda43 583extern int __must_check allocate_io_mem(struct thread_data *);
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584extern void free_io_mem(struct thread_data *);
585
b29ee5b3
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586/*
587 * Reset stats after ramp time completes
588 */
589extern void reset_all_stats(struct thread_data *);
590
fb7b71a3
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591/*
592 * blktrace support
593 */
5e62c22a 594#ifdef FIO_HAVE_BLKTRACE
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595extern int is_blktrace(const char *);
596extern int load_blktrace(struct thread_data *, const char *);
5e62c22a 597#endif
fb7b71a3 598
2866c82d
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599/*
600 * Mark unused variables passed to ops functions as unused, to silence gcc
601 */
602#define fio_unused __attribute((__unused__))
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603#define fio_init __attribute__((constructor))
604#define fio_exit __attribute__((destructor))
2866c82d 605
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606#define for_each_td(td, i) \
607 for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++)
53cdc686 608#define for_each_file(td, f, i) \
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609 if ((td)->files_index) \
610 for ((i) = 0, (f) = (td)->files[0]; \
611 (i) < (td)->o.nr_files && ((f) = (td)->files[i]) != NULL; \
612 (i)++)
53cdc686 613
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614#define fio_assert(td, cond) do { \
615 if (!(cond)) { \
340fd243 616 int *__foo = NULL; \
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617 fprintf(stderr, "file:%s:%d, assert %s failed\n", __FILE__, __LINE__, #cond); \
618 (td)->runstate = TD_EXITED; \
437c9b71 619 (td)->error = EFAULT; \
340fd243 620 *__foo = 0; \
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621 } \
622} while (0)
623
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624static inline int fio_fill_issue_time(struct thread_data *td)
625{
626 if (td->o.read_iolog_file ||
627 !td->o.disable_clat || !td->o.disable_slat || !td->o.disable_bw)
628 return 1;
629
630 return 0;
631}
632
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633/*
634 * Cheesy number->string conversion, complete with carry rounding error.
635 */
636static inline char *num2str(unsigned long num, int maxlen, int base, int pow2)
637{
638 char postfix[] = { ' ', 'K', 'M', 'G', 'P', 'E' };
639 unsigned int thousand;
640 char *buf;
641 int i;
642
643 if (pow2)
644 thousand = 1024;
645 else
646 thousand = 1000;
647
648 buf = malloc(128);
649
650 for (i = 0; base > 1; i++)
651 base /= thousand;
652
653 do {
654 int len, carry = 0;
655
656 len = sprintf(buf, "%'lu", num);
657 if (len <= maxlen) {
658 if (i >= 1) {
659 buf[len] = postfix[i];
660 buf[len + 1] = '\0';
661 }
662 return buf;
663 }
664
665 if ((num % thousand) >= (thousand / 2))
666 carry = 1;
667
668 num /= thousand;
669 num += carry;
670 i++;
671 } while (i <= 5);
672
673 return buf;
674}
675
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676static inline int __should_check_rate(struct thread_data *td,
677 enum fio_ddir ddir)
678{
679 struct thread_options *o = &td->o;
680
681 /*
682 * If some rate setting was given, we need to check it
683 */
684 if (o->rate[ddir] || o->ratemin[ddir] || o->rate_iops[ddir] ||
685 o->rate_iops_min[ddir])
686 return 1;
687
688 return 0;
689}
690
691static inline int should_check_rate(struct thread_data *td,
692 unsigned long *bytes_done)
693{
694 int ret = 0;
695
696 if (bytes_done[0])
697 ret |= __should_check_rate(td, 0);
698 if (bytes_done[1])
699 ret |= __should_check_rate(td, 1);
700
701 return ret;
702}
703
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704static inline int is_power_of_2(unsigned int val)
705{
706 return (val != 0 && ((val & (val - 1)) == 0));
707}
708
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709/*
710 * We currently only need to do locking if we have verifier threads
711 * accessing our internal structures too
712 */
713static inline void td_io_u_lock(struct thread_data *td)
714{
715 if (td->o.verify_async)
716 pthread_mutex_lock(&td->io_u_lock);
717}
718
719static inline void td_io_u_unlock(struct thread_data *td)
720{
721 if (td->o.verify_async)
722 pthread_mutex_unlock(&td->io_u_lock);
723}
724
725static inline void td_io_u_free_notify(struct thread_data *td)
726{
727 if (td->o.verify_async)
728 pthread_cond_signal(&td->free_cond);
729}
730
ebac4655 731#endif