Get rid of __ prefix for internal frand state
[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
JA
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
417f0068
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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
JA
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,
d72be545
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77};
78
d24945f0
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79enum {
80 FIO_RAND_BS_OFF = 0,
81 FIO_RAND_VER_OFF,
82 FIO_RAND_MIX_OFF,
83 FIO_RAND_FILE_OFF,
84 FIO_RAND_BLOCK_OFF,
85 FIO_RAND_FILE_SIZE_OFF,
86 FIO_RAND_TRIM_OFF,
87 FIO_RAND_BUF_OFF,
d9472271
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88 FIO_RAND_SEQ_RAND_READ_OFF,
89 FIO_RAND_SEQ_RAND_WRITE_OFF,
90 FIO_RAND_SEQ_RAND_TRIM_OFF,
23ed19b0 91 FIO_RAND_START_DELAY,
5c94b008 92 FIO_DEDUPE_OFF,
d24945f0
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93 FIO_RAND_NR_OFFS,
94};
95
2dc1bbeb
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96/*
97 * This describes a single thread/process executing a fio job.
98 */
99struct thread_data {
100 struct thread_options o;
d72be545 101 unsigned long flags;
de890a1e 102 void *eo;
e4e33258 103 char verror[FIO_VERROR_SIZE];
2dc1bbeb 104 pthread_t thread;
2f122b13 105 unsigned int thread_number;
69bdd6ba 106 unsigned int subjob_number;
2f122b13 107 unsigned int groupid;
2dc1bbeb 108 struct thread_stat ts;
7b9f733a 109
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110 int client_type;
111
7b9f733a
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112 struct io_log *slat_log;
113 struct io_log *clat_log;
114 struct io_log *lat_log;
115 struct io_log *bw_log;
c8eeb9df 116 struct io_log *iops_log;
7b9f733a 117
aee2ab67
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118 struct tp_data *tp_data;
119
6eaf09d6 120 uint64_t stat_io_bytes[DDIR_RWDIR_CNT];
c8eeb9df
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121 struct timeval bw_sample_time;
122
6eaf09d6 123 uint64_t stat_io_blocks[DDIR_RWDIR_CNT];
c8eeb9df 124 struct timeval iops_sample_time;
f0505a14 125
c97f1ad6
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126 volatile int update_rusage;
127 struct fio_mutex *rusage_sem;
c8aaba19
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128 struct rusage ru_start;
129 struct rusage ru_end;
130
126d65c6 131 struct fio_file **files;
d7df1d13 132 unsigned char *file_locks;
dd87b2c9 133 unsigned int files_size;
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134 unsigned int files_index;
135 unsigned int nr_open_files;
1020a139 136 unsigned int nr_done_files;
2dc1bbeb
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137 unsigned int nr_normal_files;
138 union {
139 unsigned int next_file;
d6b72507 140 struct frand_state next_file_state;
2dc1bbeb
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141 };
142 int error;
a5e371a6 143 int sig;
20e354ef 144 int done;
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145 pid_t pid;
146 char *orig_buffer;
147 size_t orig_buffer_size;
148 volatile int terminate;
149 volatile int runstate;
2dc1bbeb 150 unsigned int last_was_sync;
9e144189 151 enum fio_ddir last_ddir;
2dc1bbeb 152
2dc1bbeb
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153 int mmapfd;
154
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155 void *iolog_buf;
156 FILE *iolog_f;
ebac4655 157
da86774e 158 char *sysfs_root;
da86774e 159
d24945f0 160 unsigned long rand_seeds[FIO_RAND_NR_OFFS];
5bfc35d7 161
d6b72507
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162 struct frand_state bsrange_state;
163 struct frand_state verify_state;
164 struct frand_state trim_state;
165 struct frand_state delay_state;
ebac4655 166
3545a109 167 struct frand_state buf_state;
5c94b008
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168 struct frand_state buf_state_prev;
169 struct frand_state dedupe_state;
3545a109 170
9e144189 171 unsigned int verify_batch;
0d29de83 172 unsigned int trim_batch;
9e144189 173
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174 int shm_id;
175
e9c047a0
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176 /*
177 * IO engine hooks, contains everything needed to submit an io_u
178 * to any of the available IO engines.
179 */
2866c82d 180 struct ioengine_ops *io_ops;
ebac4655 181
e9c047a0 182 /*
422f9e4b 183 * Queue depth of io_u's that fio MIGHT do
e9c047a0 184 */
ebac4655 185 unsigned int cur_depth;
422f9e4b
RM
186
187 /*
188 * io_u's about to be committed
189 */
d8005759 190 unsigned int io_u_queued;
422f9e4b
RM
191
192 /*
193 * io_u's submitted but not completed yet
194 */
195 unsigned int io_u_in_flight;
196
197 /*
198 * List of free and busy io_u's
199 */
2ae0b204
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200 struct io_u_ring io_u_requeues;
201 struct io_u_queue io_u_freelist;
202 struct io_u_queue io_u_all;
e8462bd8
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203 pthread_mutex_t io_u_lock;
204 pthread_cond_t free_cond;
205
206 /*
207 * async verify offload
208 */
209 struct flist_head verify_list;
210 pthread_t *verify_threads;
211 unsigned int nr_verify_threads;
212 pthread_cond_t verify_cond;
213 int verify_thread_exit;
ebac4655 214
e9c047a0
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215 /*
216 * Rate state
217 */
bdb6d20a 218 uint64_t rate_bps[DDIR_RWDIR_CNT];
6eaf09d6
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219 long rate_pending_usleep[DDIR_RWDIR_CNT];
220 unsigned long rate_bytes[DDIR_RWDIR_CNT];
221 unsigned long rate_blocks[DDIR_RWDIR_CNT];
222 struct timeval lastrate[DDIR_RWDIR_CNT];
ebac4655 223
bdb6d20a
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224 uint64_t total_io_size;
225 uint64_t fill_device_size;
ebac4655 226
6eaf09d6 227 unsigned long io_issues[DDIR_RWDIR_CNT];
bdb6d20a
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228 uint64_t io_blocks[DDIR_RWDIR_CNT];
229 uint64_t this_io_blocks[DDIR_RWDIR_CNT];
230 uint64_t io_bytes[DDIR_RWDIR_CNT];
231 uint64_t io_skip_bytes;
232 uint64_t this_io_bytes[DDIR_RWDIR_CNT];
233 uint64_t zone_bytes;
cdd18ad8 234 struct fio_mutex *mutex;
ebac4655 235
e9c047a0
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236 /*
237 * State for random io, a bitmap of blocks done vs not done
238 */
d6b72507 239 struct frand_state random_state;
ebac4655 240
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241 struct timeval start; /* start of this loop */
242 struct timeval epoch; /* time job was started */
a61eddec 243 struct timeval last_issue;
993bf48b 244 struct timeval tv_cache;
cba5460c 245 struct timeval terminate_time;
993bf48b
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246 unsigned int tv_cache_nr;
247 unsigned int tv_cache_mask;
721938ae 248 unsigned int ramp_time_over;
ebac4655 249
3e260a46
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250 /*
251 * Time since last latency_window was started
252 */
253 struct timeval latency_ts;
254 unsigned int latency_qd;
255 unsigned int latency_qd_high;
256 unsigned int latency_qd_low;
257 unsigned int latency_failed;
258 uint64_t latency_ios;
6bb58215 259 int latency_end_run;
3e260a46 260
e9c047a0
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261 /*
262 * read/write mixed workload state
263 */
d6b72507 264 struct frand_state rwmix_state;
e4928662 265 unsigned long rwmix_issues;
e9c047a0 266 enum fio_ddir rwmix_ddir;
5736c10d 267 unsigned int ddir_seq_nr;
a6ccc7be 268
211c9b89
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269 /*
270 * rand/seq mixed workload state
271 */
d6b72507 272 struct frand_state seq_rand_state[DDIR_RWDIR_CNT];
211c9b89 273
e9c047a0 274 /*
8de8f047
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275 * IO history logs for verification. We use a tree for sorting,
276 * if we are overwriting. Otherwise just use a fifo.
e9c047a0 277 */
4b87898e 278 struct rb_root io_hist_tree;
01743ee1 279 struct flist_head io_hist_list;
9e144189 280 unsigned long io_hist_len;
8de8f047
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281
282 /*
283 * For IO replaying
284 */
01743ee1 285 struct flist_head io_log_list;
433afcb4 286
0d29de83
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287 /*
288 * For tracking/handling discards
289 */
290 struct flist_head trim_list;
291 unsigned long trim_entries;
292
1ae83d45
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293 struct flist_head next_rand_list;
294
1907dbc6
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295 /*
296 * for fileservice, how often to switch to a new file
297 */
298 unsigned int file_service_nr;
299 unsigned int file_service_left;
300 struct fio_file *file_service_file;
9c60ce64 301
44f29692
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302 unsigned int sync_file_range_nr;
303
9c60ce64
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304 /*
305 * For generating file sizes
306 */
d6b72507 307 struct frand_state file_size_state;
f2bba182
RR
308
309 /*
310 * Error counts
311 */
312 unsigned int total_err_count;
313 int first_error;
15dc1934 314
9e684a49
DE
315 struct fio_flow *flow;
316
15dc1934
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317 /*
318 * Can be overloaded by profiles
319 */
7eb36574 320 struct prof_io_ops prof_io_ops;
58c55ba0 321 void *prof_data;
9a3f1100
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322
323 void *pinned_mem;
ebac4655
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324};
325
e592a06b
AC
326/*
327 * when should interactive ETA output be generated
328 */
329enum {
330 FIO_ETA_AUTO,
331 FIO_ETA_ALWAYS,
332 FIO_ETA_NEVER,
333};
334
e1161c32 335#define __td_verror(td, err, msg, func) \
ebac4655 336 do { \
21beb609 337 unsigned int ____e = (err); \
19abcd3d
JA
338 if ((td)->error) \
339 break; \
8271963e 340 (td)->error = ____e; \
f2bba182 341 if (!(td)->first_error) \
98ffb8f3 342 snprintf(td->verror, sizeof(td->verror), "file:%s:%d, func=%s, error=%s", __FILE__, __LINE__, (func), (msg)); \
ebac4655
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343 } while (0)
344
b990b5c0 345
f2bba182
RR
346#define td_clear_error(td) \
347 (td)->error = 0;
e1161c32
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348#define td_verror(td, err, func) \
349 __td_verror((td), (err), strerror((err)), (func))
350#define td_vmsg(td, err, msg, func) \
351 __td_verror((td), (err), (msg), (func))
b990b5c0 352
81179eec
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353#define __fio_stringify_1(x) #x
354#define __fio_stringify(x) __fio_stringify_1(x)
355
ebac4655 356extern int exitall_on_terminate;
11e950bd 357extern unsigned int thread_number;
108fea77 358extern unsigned int stat_number;
ebac4655
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359extern int shm_id;
360extern int groupid;
f3afa57e 361extern int output_format;
2b8c71b0 362extern int append_terse_output;
53cdc686 363extern int temp_stall_ts;
7078106d 364extern uintptr_t page_mask, page_size;
4241ea8f 365extern int read_only;
e592a06b 366extern int eta_print;
e382e661 367extern int eta_new_line;
d3eeeabc 368extern unsigned long done_secs;
01f06b63 369extern char *job_section;
be4ecfdf
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370extern int fio_gtod_offload;
371extern int fio_gtod_cpu;
c223da83 372extern enum fio_cs fio_clock_source;
fa80feae 373extern int fio_clock_source_set;
a9523c6f 374extern int warnings_fatal;
f57a9c59 375extern int terse_version;
5c341e9a 376extern int is_backend;
a37f69b7 377extern int nr_clients;
e46d8091 378extern int log_syslog;
06464907 379extern int status_interval;
5e726d0a 380extern const char fio_version_string[];
5ddc6707
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381extern int helper_do_stat;
382extern pthread_cond_t helper_cond;
ebac4655
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383
384extern struct thread_data *threads;
385
effd6ff0 386static inline void fio_ro_check(const struct thread_data *td, struct io_u *io_u)
7101d9c2
JA
387{
388 assert(!(io_u->ddir == DDIR_WRITE && !td_write(td)));
389}
390
fca70358 391#define REAL_MAX_JOBS 2048
ebac4655 392
87dc1ab1
JA
393static inline int should_fsync(struct thread_data *td)
394{
395 if (td->last_was_sync)
396 return 0;
2dc1bbeb 397 if (td_write(td) || td_rw(td) || td->o.override_sync)
87dc1ab1
JA
398 return 1;
399
400 return 0;
401}
402
8914a9d8 403/*
214e1eca 404 * Init/option functions
8914a9d8 405 */
0420ba6a 406extern int __must_check fio_init_options(void);
72cb971b 407extern int __must_check parse_options(int, char **);
46bcd498
JA
408extern int parse_jobs_ini(char *, int, int, int);
409extern int parse_cmd_line(int, char **, int);
2e1df07d 410extern int fio_backend(void);
50d16976 411extern void reset_fio_state(void);
2e1df07d 412extern void clear_io_state(struct thread_data *);
292cc475 413extern int fio_options_parse(struct thread_data *, char **, int, int);
74929ac2 414extern void fio_keywords_init(void);
214e1eca 415extern int fio_cmd_option_parse(struct thread_data *, const char *, char *);
de890a1e 416extern int fio_cmd_ioengine_option_parse(struct thread_data *, const char *, char *);
214e1eca
JA
417extern void fio_fill_default_options(struct thread_data *);
418extern int fio_show_option_help(const char *);
de890a1e 419extern void fio_options_set_ioengine_opts(struct option *long_options, struct thread_data *td);
214e1eca 420extern void fio_options_dup_and_init(struct option *);
de890a1e
SL
421extern void fio_options_mem_dupe(struct thread_data *);
422extern void options_mem_dupe(void *data, struct fio_option *options);
5bfc35d7 423extern void td_fill_rand_seeds(struct thread_data *);
46bcd498 424extern void add_job_opts(const char **, int);
73798eb2 425extern char *num2str(unsigned long, int, int, int, int);
de890a1e 426extern int ioengine_load(struct thread_data *);
f9633d72 427extern int parse_dryrun(void);
046395d7 428extern int fio_running_or_pending_io_threads(void);
3a35845f 429extern int fio_set_fd_nonblocking(int, const char *);
1ec3d69b 430
a569b45f
JA
431extern uintptr_t page_mask;
432extern uintptr_t page_size;
433extern int initialize_fio(char *envp[]);
434
de890a1e
SL
435#define FIO_GETOPT_JOB 0x89000000
436#define FIO_GETOPT_IOENGINE 0x98000000
07b3232d 437#define FIO_NR_OPTIONS (FIO_MAX_OPTS + 128)
8914a9d8 438
263e529f
JA
439/*
440 * ETA/status stuff
441 */
442extern void print_thread_status(void);
443extern void print_status_init(int);
0a428b23 444extern char *fio_uint_to_kmg(unsigned int val);
263e529f
JA
445
446/*
447 * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it
448 * will never back again. It may cycle between running/verififying/fsyncing.
449 * Once the thread reaches TD_EXITED, it is just waiting for the core to
450 * reap it.
451 */
452enum {
453 TD_NOT_CREATED = 0,
454 TD_CREATED,
455 TD_INITIALIZED,
b29ee5b3 456 TD_RAMP,
36d80bc7 457 TD_SETTING_UP,
263e529f 458 TD_RUNNING,
b0f65863 459 TD_PRE_READING,
263e529f
JA
460 TD_VERIFYING,
461 TD_FSYNCING,
3d434057 462 TD_FINISHING,
263e529f
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463 TD_EXITED,
464 TD_REAPED,
465};
466
b29ee5b3 467extern void td_set_runstate(struct thread_data *, int);
8edd973d
JA
468extern int td_bump_runstate(struct thread_data *, int);
469extern void td_restore_runstate(struct thread_data *, int);
470
cba5460c
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471/*
472 * Allow 60 seconds for a job to quit on its own, otherwise reap with
473 * a vengeance.
474 */
475#define FIO_REAP_TIMEOUT 60
476
cc0df00a
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477#define TERMINATE_ALL (-1)
478extern void fio_terminate_threads(int);
ebea2133 479extern void fio_mark_td_terminate(struct thread_data *);
b29ee5b3 480
2f9ade3c
JA
481/*
482 * Memory helpers
483 */
9a3f1100
JA
484extern int __must_check fio_pin_memory(struct thread_data *);
485extern void fio_unpin_memory(struct thread_data *);
b2fdda43 486extern int __must_check allocate_io_mem(struct thread_data *);
2f9ade3c 487extern void free_io_mem(struct thread_data *);
2bb3f0a7 488extern void free_threads_shm(void);
2f9ade3c 489
b29ee5b3
JA
490/*
491 * Reset stats after ramp time completes
492 */
493extern void reset_all_stats(struct thread_data *);
494
fb7b71a3
JA
495/*
496 * blktrace support
497 */
5e62c22a 498#ifdef FIO_HAVE_BLKTRACE
d95b34a6
JA
499extern int is_blktrace(const char *, int *);
500extern int load_blktrace(struct thread_data *, const char *, int);
5e62c22a 501#endif
fb7b71a3 502
3e260a46
JA
503/*
504 * Latency target helpers
505 */
506extern void lat_target_check(struct thread_data *);
507extern void lat_target_init(struct thread_data *);
6bb58215 508extern void lat_target_reset(struct thread_data *);
3e260a46 509
34572e28
JA
510#define for_each_td(td, i) \
511 for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++)
53cdc686 512#define for_each_file(td, f, i) \
691c8fb0
JA
513 if ((td)->files_index) \
514 for ((i) = 0, (f) = (td)->files[0]; \
515 (i) < (td)->o.nr_files && ((f) = (td)->files[i]) != NULL; \
516 (i)++)
53cdc686 517
0032bf9f
JA
518#define fio_assert(td, cond) do { \
519 if (!(cond)) { \
340fd243 520 int *__foo = NULL; \
0032bf9f 521 fprintf(stderr, "file:%s:%d, assert %s failed\n", __FILE__, __LINE__, #cond); \
ac18ea38 522 td_set_runstate((td), TD_EXITED); \
437c9b71 523 (td)->error = EFAULT; \
340fd243 524 *__foo = 0; \
0032bf9f
JA
525 } \
526} while (0)
527
12d9d841
JA
528static inline int fio_fill_issue_time(struct thread_data *td)
529{
530 if (td->o.read_iolog_file ||
531 !td->o.disable_clat || !td->o.disable_slat || !td->o.disable_bw)
532 return 1;
533
534 return 0;
535}
536
581e7141
JA
537static inline int __should_check_rate(struct thread_data *td,
538 enum fio_ddir ddir)
539{
540 struct thread_options *o = &td->o;
541
542 /*
543 * If some rate setting was given, we need to check it
544 */
545 if (o->rate[ddir] || o->ratemin[ddir] || o->rate_iops[ddir] ||
546 o->rate_iops_min[ddir])
547 return 1;
548
549 return 0;
550}
551
552static inline int should_check_rate(struct thread_data *td,
aa83321f 553 uint64_t *bytes_done)
581e7141
JA
554{
555 int ret = 0;
556
6eaf09d6
SL
557 if (bytes_done[DDIR_READ])
558 ret |= __should_check_rate(td, DDIR_READ);
559 if (bytes_done[DDIR_WRITE])
560 ret |= __should_check_rate(td, DDIR_WRITE);
561 if (bytes_done[DDIR_TRIM])
562 ret |= __should_check_rate(td, DDIR_TRIM);
581e7141
JA
563
564 return ret;
565}
566
74f4b020
JA
567static inline unsigned int td_max_bs(struct thread_data *td)
568{
569 unsigned int max_bs;
570
571 max_bs = max(td->o.max_bs[DDIR_READ], td->o.max_bs[DDIR_WRITE]);
572 return max(td->o.max_bs[DDIR_TRIM], max_bs);
573}
574
8d916c94
JA
575static inline unsigned int td_min_bs(struct thread_data *td)
576{
577 unsigned int min_bs;
578
579 min_bs = min(td->o.min_bs[DDIR_READ], td->o.min_bs[DDIR_WRITE]);
580 return min(td->o.min_bs[DDIR_TRIM], min_bs);
581}
582
088b17c5 583static inline int is_power_of_2(unsigned long val)
d529ee19
JA
584{
585 return (val != 0 && ((val & (val - 1)) == 0));
586}
587
e8462bd8
JA
588/*
589 * We currently only need to do locking if we have verifier threads
590 * accessing our internal structures too
591 */
592static inline void td_io_u_lock(struct thread_data *td)
593{
594 if (td->o.verify_async)
595 pthread_mutex_lock(&td->io_u_lock);
596}
597
598static inline void td_io_u_unlock(struct thread_data *td)
599{
600 if (td->o.verify_async)
601 pthread_mutex_unlock(&td->io_u_lock);
602}
603
604static inline void td_io_u_free_notify(struct thread_data *td)
605{
606 if (td->o.verify_async)
607 pthread_cond_signal(&td->free_cond);
608}
609
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610extern const char *fio_get_arch_string(int);
611extern const char *fio_get_os_string(int);
612
e2c81040 613#ifdef FIO_INTERNAL
05775438 614#define ARRAY_SIZE(x) (sizeof((x)) / (sizeof((x)[0])))
e2c81040 615#endif
05775438 616
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617enum {
618 FIO_OUTPUT_TERSE = 0,
619 FIO_OUTPUT_JSON,
620 FIO_OUTPUT_NORMAL,
621};
622
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623enum {
624 FIO_RAND_DIST_RANDOM = 0,
625 FIO_RAND_DIST_ZIPF,
925fee33 626 FIO_RAND_DIST_PARETO,
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627};
628
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629enum {
630 FIO_RAND_GEN_TAUSWORTHE = 0,
631 FIO_RAND_GEN_LFSR,
632};
633
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634enum {
635 FIO_CPUS_SHARED = 0,
636 FIO_CPUS_SPLIT,
637};
638
ebac4655 639#endif