Merge branch 'master' of ssh://git.kernel.dk/data/git/fio
[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>
cd14cc10 14#include <inttypes.h>
7101d9c2 15#include <assert.h>
ebac4655 16
317b95d0 17#include "compiler/compiler.h"
8062f527 18#include "thread_options.h"
01743ee1 19#include "flist.h"
e2887563 20#include "fifo.h"
317b95d0
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21#include "arch/arch.h"
22#include "os/os.h"
07739b57 23#include "mutex.h"
a3d741fa
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24#include "log.h"
25#include "debug.h"
d6aed795
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26#include "file.h"
27#include "io_ddir.h"
dcefb588 28#include "ioengine.h"
5995a6a4 29#include "iolog.h"
c5c8bd5c 30#include "helpers.h"
07b3232d 31#include "options.h"
7eb36574 32#include "profile.h"
ef3c94b6 33#include "fio_time.h"
a7346816 34#include "gettime.h"
bf2e821a 35#include "lib/getopt.h"
2615cc4b 36#include "lib/rand.h"
7fb6d453 37#include "lib/rbtree.h"
dd366728 38#include "client.h"
37db14fe 39#include "server.h"
a64e88da 40#include "stat.h"
9e684a49 41#include "flow.h"
2ae0b204 42#include "io_u_queue.h"
ebac4655 43
4700b234 44#ifdef CONFIG_SOLARISAIO
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45#include <sys/asynch.h>
46#endif
47
67bf9823 48#ifdef CONFIG_LIBNUMA
d0b937ed
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49#include <linux/mempolicy.h>
50#include <numa.h>
51
52/*
53 * "local" is pseudo-policy
54 */
55#define MPOL_LOCAL MPOL_MAX
56#endif
57
38dad62d
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58/*
59 * offset generator types
60 */
61enum {
62 RW_SEQ_SEQ = 0,
63 RW_SEQ_IDENT,
64};
65
d72be545
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66enum {
67 TD_F_VER_BACKLOG = 1,
68 TD_F_TRIM_BACKLOG = 2,
69 TD_F_READ_IOLOG = 4,
70 TD_F_REFILL_BUFFERS = 8,
71 TD_F_SCRAMBLE_BUFFERS = 16,
72 TD_F_VER_NONE = 32,
73 TD_F_PROFILE_OPS = 64,
bedc9dc2 74 TD_F_COMPRESS = 128,
046395d7 75 TD_F_NOIO = 256,
aee2ab67 76 TD_F_COMPRESS_LOG = 512,
ca09be4b 77 TD_F_VSTATE_SAVED = 1024,
d72be545
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78};
79
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80enum {
81 FIO_RAND_BS_OFF = 0,
82 FIO_RAND_VER_OFF,
83 FIO_RAND_MIX_OFF,
84 FIO_RAND_FILE_OFF,
85 FIO_RAND_BLOCK_OFF,
86 FIO_RAND_FILE_SIZE_OFF,
87 FIO_RAND_TRIM_OFF,
88 FIO_RAND_BUF_OFF,
d9472271
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89 FIO_RAND_SEQ_RAND_READ_OFF,
90 FIO_RAND_SEQ_RAND_WRITE_OFF,
91 FIO_RAND_SEQ_RAND_TRIM_OFF,
23ed19b0 92 FIO_RAND_START_DELAY,
5c94b008 93 FIO_DEDUPE_OFF,
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94 FIO_RAND_NR_OFFS,
95};
96
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97/*
98 * This describes a single thread/process executing a fio job.
99 */
100struct thread_data {
101 struct thread_options o;
d72be545 102 unsigned long flags;
de890a1e 103 void *eo;
e4e33258 104 char verror[FIO_VERROR_SIZE];
2dc1bbeb 105 pthread_t thread;
2f122b13 106 unsigned int thread_number;
69bdd6ba 107 unsigned int subjob_number;
2f122b13 108 unsigned int groupid;
2dc1bbeb 109 struct thread_stat ts;
7b9f733a 110
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111 int client_type;
112
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113 struct io_log *slat_log;
114 struct io_log *clat_log;
115 struct io_log *lat_log;
116 struct io_log *bw_log;
c8eeb9df 117 struct io_log *iops_log;
7b9f733a 118
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119 struct tp_data *tp_data;
120
6eaf09d6 121 uint64_t stat_io_bytes[DDIR_RWDIR_CNT];
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122 struct timeval bw_sample_time;
123
6eaf09d6 124 uint64_t stat_io_blocks[DDIR_RWDIR_CNT];
c8eeb9df 125 struct timeval iops_sample_time;
f0505a14 126
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127 /*
128 * Tracks the last iodepth number of completed writes, if data
129 * verification is enabled
130 */
131 uint64_t *last_write_comp;
132 unsigned int last_write_idx;
133
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134 volatile int update_rusage;
135 struct fio_mutex *rusage_sem;
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136 struct rusage ru_start;
137 struct rusage ru_end;
138
126d65c6 139 struct fio_file **files;
d7df1d13 140 unsigned char *file_locks;
dd87b2c9 141 unsigned int files_size;
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142 unsigned int files_index;
143 unsigned int nr_open_files;
1020a139 144 unsigned int nr_done_files;
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145 unsigned int nr_normal_files;
146 union {
147 unsigned int next_file;
d6b72507 148 struct frand_state next_file_state;
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149 };
150 int error;
a5e371a6 151 int sig;
20e354ef 152 int done;
ca09be4b 153 int stop_io;
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154 pid_t pid;
155 char *orig_buffer;
156 size_t orig_buffer_size;
157 volatile int terminate;
158 volatile int runstate;
2dc1bbeb 159 unsigned int last_was_sync;
9e144189 160 enum fio_ddir last_ddir;
2dc1bbeb 161
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162 int mmapfd;
163
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164 void *iolog_buf;
165 FILE *iolog_f;
ebac4655 166
da86774e 167 char *sysfs_root;
da86774e 168
d24945f0 169 unsigned long rand_seeds[FIO_RAND_NR_OFFS];
5bfc35d7 170
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171 struct frand_state bsrange_state;
172 struct frand_state verify_state;
173 struct frand_state trim_state;
174 struct frand_state delay_state;
ebac4655 175
3545a109 176 struct frand_state buf_state;
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177 struct frand_state buf_state_prev;
178 struct frand_state dedupe_state;
3545a109 179
9e144189 180 unsigned int verify_batch;
0d29de83 181 unsigned int trim_batch;
9e144189 182
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183 struct thread_io_list *vstate;
184
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185 int shm_id;
186
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187 /*
188 * IO engine hooks, contains everything needed to submit an io_u
189 * to any of the available IO engines.
190 */
2866c82d 191 struct ioengine_ops *io_ops;
ebac4655 192
e9c047a0 193 /*
422f9e4b 194 * Queue depth of io_u's that fio MIGHT do
e9c047a0 195 */
ebac4655 196 unsigned int cur_depth;
422f9e4b
RM
197
198 /*
199 * io_u's about to be committed
200 */
d8005759 201 unsigned int io_u_queued;
422f9e4b
RM
202
203 /*
204 * io_u's submitted but not completed yet
205 */
206 unsigned int io_u_in_flight;
207
208 /*
209 * List of free and busy io_u's
210 */
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211 struct io_u_ring io_u_requeues;
212 struct io_u_queue io_u_freelist;
213 struct io_u_queue io_u_all;
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214 pthread_mutex_t io_u_lock;
215 pthread_cond_t free_cond;
216
217 /*
218 * async verify offload
219 */
220 struct flist_head verify_list;
221 pthread_t *verify_threads;
222 unsigned int nr_verify_threads;
223 pthread_cond_t verify_cond;
224 int verify_thread_exit;
ebac4655 225
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226 /*
227 * Rate state
228 */
bdb6d20a 229 uint64_t rate_bps[DDIR_RWDIR_CNT];
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230 long rate_pending_usleep[DDIR_RWDIR_CNT];
231 unsigned long rate_bytes[DDIR_RWDIR_CNT];
232 unsigned long rate_blocks[DDIR_RWDIR_CNT];
233 struct timeval lastrate[DDIR_RWDIR_CNT];
ebac4655 234
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235 uint64_t total_io_size;
236 uint64_t fill_device_size;
ebac4655 237
ca09be4b 238 uint64_t io_issues[DDIR_RWDIR_CNT];
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239 uint64_t io_blocks[DDIR_RWDIR_CNT];
240 uint64_t this_io_blocks[DDIR_RWDIR_CNT];
241 uint64_t io_bytes[DDIR_RWDIR_CNT];
242 uint64_t io_skip_bytes;
243 uint64_t this_io_bytes[DDIR_RWDIR_CNT];
244 uint64_t zone_bytes;
cdd18ad8 245 struct fio_mutex *mutex;
ebac4655 246
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247 /*
248 * State for random io, a bitmap of blocks done vs not done
249 */
d6b72507 250 struct frand_state random_state;
ebac4655 251
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252 struct timeval start; /* start of this loop */
253 struct timeval epoch; /* time job was started */
a61eddec 254 struct timeval last_issue;
df8fb609 255 long time_offset;
993bf48b 256 struct timeval tv_cache;
cba5460c 257 struct timeval terminate_time;
993bf48b
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258 unsigned int tv_cache_nr;
259 unsigned int tv_cache_mask;
721938ae 260 unsigned int ramp_time_over;
ebac4655 261
3e260a46
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262 /*
263 * Time since last latency_window was started
264 */
265 struct timeval latency_ts;
266 unsigned int latency_qd;
267 unsigned int latency_qd_high;
268 unsigned int latency_qd_low;
269 unsigned int latency_failed;
270 uint64_t latency_ios;
6bb58215 271 int latency_end_run;
3e260a46 272
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273 /*
274 * read/write mixed workload state
275 */
d6b72507 276 struct frand_state rwmix_state;
e4928662 277 unsigned long rwmix_issues;
e9c047a0 278 enum fio_ddir rwmix_ddir;
5736c10d 279 unsigned int ddir_seq_nr;
a6ccc7be 280
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281 /*
282 * rand/seq mixed workload state
283 */
d6b72507 284 struct frand_state seq_rand_state[DDIR_RWDIR_CNT];
211c9b89 285
e9c047a0 286 /*
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287 * IO history logs for verification. We use a tree for sorting,
288 * if we are overwriting. Otherwise just use a fifo.
e9c047a0 289 */
4b87898e 290 struct rb_root io_hist_tree;
01743ee1 291 struct flist_head io_hist_list;
9e144189 292 unsigned long io_hist_len;
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293
294 /*
295 * For IO replaying
296 */
01743ee1 297 struct flist_head io_log_list;
433afcb4 298
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299 /*
300 * For tracking/handling discards
301 */
302 struct flist_head trim_list;
303 unsigned long trim_entries;
304
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305 struct flist_head next_rand_list;
306
1907dbc6
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307 /*
308 * for fileservice, how often to switch to a new file
309 */
310 unsigned int file_service_nr;
311 unsigned int file_service_left;
312 struct fio_file *file_service_file;
9c60ce64 313
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314 unsigned int sync_file_range_nr;
315
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316 /*
317 * For generating file sizes
318 */
d6b72507 319 struct frand_state file_size_state;
f2bba182
RR
320
321 /*
322 * Error counts
323 */
324 unsigned int total_err_count;
325 int first_error;
15dc1934 326
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327 struct fio_flow *flow;
328
15dc1934
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329 /*
330 * Can be overloaded by profiles
331 */
7eb36574 332 struct prof_io_ops prof_io_ops;
58c55ba0 333 void *prof_data;
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334
335 void *pinned_mem;
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336};
337
e592a06b
AC
338/*
339 * when should interactive ETA output be generated
340 */
341enum {
342 FIO_ETA_AUTO,
343 FIO_ETA_ALWAYS,
344 FIO_ETA_NEVER,
345};
346
e1161c32 347#define __td_verror(td, err, msg, func) \
ebac4655 348 do { \
21beb609 349 unsigned int ____e = (err); \
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350 if ((td)->error) \
351 break; \
8271963e 352 (td)->error = ____e; \
f2bba182 353 if (!(td)->first_error) \
98ffb8f3 354 snprintf(td->verror, sizeof(td->verror), "file:%s:%d, func=%s, error=%s", __FILE__, __LINE__, (func), (msg)); \
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355 } while (0)
356
b990b5c0 357
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RR
358#define td_clear_error(td) \
359 (td)->error = 0;
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360#define td_verror(td, err, func) \
361 __td_verror((td), (err), strerror((err)), (func))
362#define td_vmsg(td, err, msg, func) \
363 __td_verror((td), (err), (msg), (func))
b990b5c0 364
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365#define __fio_stringify_1(x) #x
366#define __fio_stringify(x) __fio_stringify_1(x)
367
ebac4655 368extern int exitall_on_terminate;
11e950bd 369extern unsigned int thread_number;
108fea77 370extern unsigned int stat_number;
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371extern int shm_id;
372extern int groupid;
f3afa57e 373extern int output_format;
2b8c71b0 374extern int append_terse_output;
53cdc686 375extern int temp_stall_ts;
7078106d 376extern uintptr_t page_mask, page_size;
4241ea8f 377extern int read_only;
e592a06b 378extern int eta_print;
e382e661 379extern int eta_new_line;
d3eeeabc 380extern unsigned long done_secs;
01f06b63 381extern char *job_section;
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382extern int fio_gtod_offload;
383extern int fio_gtod_cpu;
c223da83 384extern enum fio_cs fio_clock_source;
fa80feae 385extern int fio_clock_source_set;
a9523c6f 386extern int warnings_fatal;
f57a9c59 387extern int terse_version;
5c341e9a 388extern int is_backend;
a37f69b7 389extern int nr_clients;
e46d8091 390extern int log_syslog;
06464907 391extern int status_interval;
5e726d0a 392extern const char fio_version_string[];
5ddc6707
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393extern int helper_do_stat;
394extern pthread_cond_t helper_cond;
ca09be4b
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395extern char *trigger_file;
396extern char *trigger_cmd;
b63efd30 397extern char *trigger_remote_cmd;
ca09be4b 398extern long long trigger_timeout;
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399
400extern struct thread_data *threads;
401
effd6ff0 402static inline void fio_ro_check(const struct thread_data *td, struct io_u *io_u)
7101d9c2
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403{
404 assert(!(io_u->ddir == DDIR_WRITE && !td_write(td)));
405}
406
fca70358 407#define REAL_MAX_JOBS 2048
ebac4655 408
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409static inline int should_fsync(struct thread_data *td)
410{
411 if (td->last_was_sync)
412 return 0;
2dc1bbeb 413 if (td_write(td) || td_rw(td) || td->o.override_sync)
87dc1ab1
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414 return 1;
415
416 return 0;
417}
418
8914a9d8 419/*
214e1eca 420 * Init/option functions
8914a9d8 421 */
0420ba6a 422extern int __must_check fio_init_options(void);
72cb971b 423extern int __must_check parse_options(int, char **);
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424extern int parse_jobs_ini(char *, int, int, int);
425extern int parse_cmd_line(int, char **, int);
2e1df07d 426extern int fio_backend(void);
50d16976 427extern void reset_fio_state(void);
2e1df07d 428extern void clear_io_state(struct thread_data *);
292cc475 429extern int fio_options_parse(struct thread_data *, char **, int, int);
74929ac2 430extern void fio_keywords_init(void);
214e1eca 431extern int fio_cmd_option_parse(struct thread_data *, const char *, char *);
de890a1e 432extern int fio_cmd_ioengine_option_parse(struct thread_data *, const char *, char *);
214e1eca
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433extern void fio_fill_default_options(struct thread_data *);
434extern int fio_show_option_help(const char *);
de890a1e 435extern void fio_options_set_ioengine_opts(struct option *long_options, struct thread_data *td);
214e1eca 436extern void fio_options_dup_and_init(struct option *);
de890a1e
SL
437extern void fio_options_mem_dupe(struct thread_data *);
438extern void options_mem_dupe(void *data, struct fio_option *options);
5bfc35d7 439extern void td_fill_rand_seeds(struct thread_data *);
46bcd498 440extern void add_job_opts(const char **, int);
ca09be4b 441extern char *num2str(uint64_t, int, int, int, int);
de890a1e 442extern int ioengine_load(struct thread_data *);
f9633d72 443extern int parse_dryrun(void);
046395d7 444extern int fio_running_or_pending_io_threads(void);
3a35845f 445extern int fio_set_fd_nonblocking(int, const char *);
1ec3d69b 446
a569b45f
JA
447extern uintptr_t page_mask;
448extern uintptr_t page_size;
449extern int initialize_fio(char *envp[]);
450
de890a1e
SL
451#define FIO_GETOPT_JOB 0x89000000
452#define FIO_GETOPT_IOENGINE 0x98000000
07b3232d 453#define FIO_NR_OPTIONS (FIO_MAX_OPTS + 128)
8914a9d8 454
263e529f
JA
455/*
456 * ETA/status stuff
457 */
458extern void print_thread_status(void);
459extern void print_status_init(int);
0a428b23 460extern char *fio_uint_to_kmg(unsigned int val);
263e529f
JA
461
462/*
463 * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it
464 * will never back again. It may cycle between running/verififying/fsyncing.
465 * Once the thread reaches TD_EXITED, it is just waiting for the core to
466 * reap it.
467 */
468enum {
469 TD_NOT_CREATED = 0,
470 TD_CREATED,
471 TD_INITIALIZED,
b29ee5b3 472 TD_RAMP,
36d80bc7 473 TD_SETTING_UP,
263e529f 474 TD_RUNNING,
b0f65863 475 TD_PRE_READING,
263e529f
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476 TD_VERIFYING,
477 TD_FSYNCING,
3d434057 478 TD_FINISHING,
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479 TD_EXITED,
480 TD_REAPED,
481};
482
b29ee5b3 483extern void td_set_runstate(struct thread_data *, int);
8edd973d
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484extern int td_bump_runstate(struct thread_data *, int);
485extern void td_restore_runstate(struct thread_data *, int);
486
cba5460c
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487/*
488 * Allow 60 seconds for a job to quit on its own, otherwise reap with
489 * a vengeance.
490 */
491#define FIO_REAP_TIMEOUT 60
492
cc0df00a
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493#define TERMINATE_ALL (-1)
494extern void fio_terminate_threads(int);
ebea2133 495extern void fio_mark_td_terminate(struct thread_data *);
b29ee5b3 496
2f9ade3c
JA
497/*
498 * Memory helpers
499 */
9a3f1100
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500extern int __must_check fio_pin_memory(struct thread_data *);
501extern void fio_unpin_memory(struct thread_data *);
b2fdda43 502extern int __must_check allocate_io_mem(struct thread_data *);
2f9ade3c 503extern void free_io_mem(struct thread_data *);
2bb3f0a7 504extern void free_threads_shm(void);
2f9ade3c 505
b29ee5b3
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506/*
507 * Reset stats after ramp time completes
508 */
509extern void reset_all_stats(struct thread_data *);
510
fb7b71a3
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511/*
512 * blktrace support
513 */
5e62c22a 514#ifdef FIO_HAVE_BLKTRACE
d95b34a6
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515extern int is_blktrace(const char *, int *);
516extern int load_blktrace(struct thread_data *, const char *, int);
5e62c22a 517#endif
fb7b71a3 518
3e260a46
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519/*
520 * Latency target helpers
521 */
522extern void lat_target_check(struct thread_data *);
523extern void lat_target_init(struct thread_data *);
6bb58215 524extern void lat_target_reset(struct thread_data *);
3e260a46 525
34572e28
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526#define for_each_td(td, i) \
527 for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++)
53cdc686 528#define for_each_file(td, f, i) \
691c8fb0
JA
529 if ((td)->files_index) \
530 for ((i) = 0, (f) = (td)->files[0]; \
531 (i) < (td)->o.nr_files && ((f) = (td)->files[i]) != NULL; \
532 (i)++)
53cdc686 533
0032bf9f
JA
534#define fio_assert(td, cond) do { \
535 if (!(cond)) { \
340fd243 536 int *__foo = NULL; \
0032bf9f 537 fprintf(stderr, "file:%s:%d, assert %s failed\n", __FILE__, __LINE__, #cond); \
ac18ea38 538 td_set_runstate((td), TD_EXITED); \
437c9b71 539 (td)->error = EFAULT; \
340fd243 540 *__foo = 0; \
0032bf9f
JA
541 } \
542} while (0)
543
12d9d841
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544static inline int fio_fill_issue_time(struct thread_data *td)
545{
546 if (td->o.read_iolog_file ||
547 !td->o.disable_clat || !td->o.disable_slat || !td->o.disable_bw)
548 return 1;
549
550 return 0;
551}
552
581e7141
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553static inline int __should_check_rate(struct thread_data *td,
554 enum fio_ddir ddir)
555{
556 struct thread_options *o = &td->o;
557
558 /*
559 * If some rate setting was given, we need to check it
560 */
561 if (o->rate[ddir] || o->ratemin[ddir] || o->rate_iops[ddir] ||
562 o->rate_iops_min[ddir])
563 return 1;
564
565 return 0;
566}
567
568static inline int should_check_rate(struct thread_data *td,
aa83321f 569 uint64_t *bytes_done)
581e7141
JA
570{
571 int ret = 0;
572
6eaf09d6
SL
573 if (bytes_done[DDIR_READ])
574 ret |= __should_check_rate(td, DDIR_READ);
575 if (bytes_done[DDIR_WRITE])
576 ret |= __should_check_rate(td, DDIR_WRITE);
577 if (bytes_done[DDIR_TRIM])
578 ret |= __should_check_rate(td, DDIR_TRIM);
581e7141
JA
579
580 return ret;
581}
582
74f4b020
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583static inline unsigned int td_max_bs(struct thread_data *td)
584{
585 unsigned int max_bs;
586
587 max_bs = max(td->o.max_bs[DDIR_READ], td->o.max_bs[DDIR_WRITE]);
588 return max(td->o.max_bs[DDIR_TRIM], max_bs);
589}
590
8d916c94
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591static inline unsigned int td_min_bs(struct thread_data *td)
592{
593 unsigned int min_bs;
594
595 min_bs = min(td->o.min_bs[DDIR_READ], td->o.min_bs[DDIR_WRITE]);
596 return min(td->o.min_bs[DDIR_TRIM], min_bs);
597}
598
ca09be4b 599static inline int is_power_of_2(uint64_t val)
d529ee19
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600{
601 return (val != 0 && ((val & (val - 1)) == 0));
602}
603
e8462bd8
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604/*
605 * We currently only need to do locking if we have verifier threads
606 * accessing our internal structures too
607 */
608static inline void td_io_u_lock(struct thread_data *td)
609{
610 if (td->o.verify_async)
611 pthread_mutex_lock(&td->io_u_lock);
612}
613
614static inline void td_io_u_unlock(struct thread_data *td)
615{
616 if (td->o.verify_async)
617 pthread_mutex_unlock(&td->io_u_lock);
618}
619
620static inline void td_io_u_free_notify(struct thread_data *td)
621{
622 if (td->o.verify_async)
623 pthread_cond_signal(&td->free_cond);
624}
625
cca84643
JA
626extern const char *fio_get_arch_string(int);
627extern const char *fio_get_os_string(int);
628
e2c81040 629#ifdef FIO_INTERNAL
05775438 630#define ARRAY_SIZE(x) (sizeof((x)) / (sizeof((x)[0])))
e2c81040 631#endif
05775438 632
f3afa57e
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633enum {
634 FIO_OUTPUT_TERSE = 0,
635 FIO_OUTPUT_JSON,
636 FIO_OUTPUT_NORMAL,
637};
638
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639enum {
640 FIO_RAND_DIST_RANDOM = 0,
641 FIO_RAND_DIST_ZIPF,
925fee33 642 FIO_RAND_DIST_PARETO,
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643};
644
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645enum {
646 FIO_RAND_GEN_TAUSWORTHE = 0,
647 FIO_RAND_GEN_LFSR,
648};
649
c2acfbac
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650enum {
651 FIO_CPUS_SHARED = 0,
652 FIO_CPUS_SPLIT,
653};
654
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655extern void exec_trigger(const char *);
656extern void check_trigger_file(void);
657
ebac4655 658#endif