| 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> |
| 9 | #include <errno.h> |
| 10 | #include <stdlib.h> |
| 11 | #include <stdio.h> |
| 12 | #include <unistd.h> |
| 13 | #include <string.h> |
| 14 | #include <inttypes.h> |
| 15 | #include <assert.h> |
| 16 | |
| 17 | struct thread_data; |
| 18 | |
| 19 | #include "compiler/compiler.h" |
| 20 | #include "thread_options.h" |
| 21 | #include "flist.h" |
| 22 | #include "fifo.h" |
| 23 | #include "arch/arch.h" |
| 24 | #include "os/os.h" |
| 25 | #include "mutex.h" |
| 26 | #include "log.h" |
| 27 | #include "debug.h" |
| 28 | #include "file.h" |
| 29 | #include "io_ddir.h" |
| 30 | #include "ioengine.h" |
| 31 | #include "iolog.h" |
| 32 | #include "helpers.h" |
| 33 | #include "options.h" |
| 34 | #include "profile.h" |
| 35 | #include "time.h" |
| 36 | #include "gettime.h" |
| 37 | #include "lib/getopt.h" |
| 38 | #include "lib/rand.h" |
| 39 | #include "lib/rbtree.h" |
| 40 | #include "server.h" |
| 41 | #include "stat.h" |
| 42 | #include "flow.h" |
| 43 | |
| 44 | #ifdef CONFIG_SOLARISAIO |
| 45 | #include <sys/asynch.h> |
| 46 | #endif |
| 47 | |
| 48 | #ifdef CONFIG_LIBNUMA |
| 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 | |
| 58 | /* |
| 59 | * offset generator types |
| 60 | */ |
| 61 | enum { |
| 62 | RW_SEQ_SEQ = 0, |
| 63 | RW_SEQ_IDENT, |
| 64 | }; |
| 65 | |
| 66 | enum { |
| 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, |
| 74 | }; |
| 75 | |
| 76 | enum { |
| 77 | FIO_RAND_BS_OFF = 0, |
| 78 | FIO_RAND_VER_OFF, |
| 79 | FIO_RAND_MIX_OFF, |
| 80 | FIO_RAND_FILE_OFF, |
| 81 | FIO_RAND_BLOCK_OFF, |
| 82 | FIO_RAND_FILE_SIZE_OFF, |
| 83 | FIO_RAND_TRIM_OFF, |
| 84 | FIO_RAND_BUF_OFF, |
| 85 | FIO_RAND_NR_OFFS, |
| 86 | }; |
| 87 | |
| 88 | /* |
| 89 | * This describes a single thread/process executing a fio job. |
| 90 | */ |
| 91 | struct thread_data { |
| 92 | struct thread_options o; |
| 93 | unsigned long flags; |
| 94 | void *eo; |
| 95 | char verror[FIO_VERROR_SIZE]; |
| 96 | pthread_t thread; |
| 97 | int thread_number; |
| 98 | int groupid; |
| 99 | struct thread_stat ts; |
| 100 | |
| 101 | struct io_log *slat_log; |
| 102 | struct io_log *clat_log; |
| 103 | struct io_log *lat_log; |
| 104 | struct io_log *bw_log; |
| 105 | struct io_log *iops_log; |
| 106 | |
| 107 | uint64_t stat_io_bytes[DDIR_RWDIR_CNT]; |
| 108 | struct timeval bw_sample_time; |
| 109 | |
| 110 | uint64_t stat_io_blocks[DDIR_RWDIR_CNT]; |
| 111 | struct timeval iops_sample_time; |
| 112 | |
| 113 | volatile int update_rusage; |
| 114 | struct fio_mutex *rusage_sem; |
| 115 | struct rusage ru_start; |
| 116 | struct rusage ru_end; |
| 117 | |
| 118 | struct fio_file **files; |
| 119 | unsigned char *file_locks; |
| 120 | unsigned int files_size; |
| 121 | unsigned int files_index; |
| 122 | unsigned int nr_open_files; |
| 123 | unsigned int nr_done_files; |
| 124 | unsigned int nr_normal_files; |
| 125 | union { |
| 126 | unsigned int next_file; |
| 127 | os_random_state_t next_file_state; |
| 128 | struct frand_state __next_file_state; |
| 129 | }; |
| 130 | int error; |
| 131 | int sig; |
| 132 | int done; |
| 133 | pid_t pid; |
| 134 | char *orig_buffer; |
| 135 | size_t orig_buffer_size; |
| 136 | volatile int terminate; |
| 137 | volatile int runstate; |
| 138 | unsigned int ioprio; |
| 139 | unsigned int ioprio_set; |
| 140 | unsigned int last_was_sync; |
| 141 | enum fio_ddir last_ddir; |
| 142 | |
| 143 | char *mmapfile; |
| 144 | int mmapfd; |
| 145 | |
| 146 | void *iolog_buf; |
| 147 | FILE *iolog_f; |
| 148 | |
| 149 | char *sysfs_root; |
| 150 | |
| 151 | unsigned long rand_seeds[FIO_RAND_NR_OFFS]; |
| 152 | |
| 153 | union { |
| 154 | os_random_state_t bsrange_state; |
| 155 | struct frand_state __bsrange_state; |
| 156 | }; |
| 157 | union { |
| 158 | os_random_state_t verify_state; |
| 159 | struct frand_state __verify_state; |
| 160 | }; |
| 161 | union { |
| 162 | os_random_state_t trim_state; |
| 163 | struct frand_state __trim_state; |
| 164 | }; |
| 165 | |
| 166 | struct frand_state buf_state; |
| 167 | |
| 168 | unsigned int verify_batch; |
| 169 | unsigned int trim_batch; |
| 170 | |
| 171 | int shm_id; |
| 172 | |
| 173 | /* |
| 174 | * IO engine hooks, contains everything needed to submit an io_u |
| 175 | * to any of the available IO engines. |
| 176 | */ |
| 177 | struct ioengine_ops *io_ops; |
| 178 | |
| 179 | /* |
| 180 | * Queue depth of io_u's that fio MIGHT do |
| 181 | */ |
| 182 | unsigned int cur_depth; |
| 183 | |
| 184 | /* |
| 185 | * io_u's about to be committed |
| 186 | */ |
| 187 | unsigned int io_u_queued; |
| 188 | |
| 189 | /* |
| 190 | * io_u's submitted but not completed yet |
| 191 | */ |
| 192 | unsigned int io_u_in_flight; |
| 193 | |
| 194 | /* |
| 195 | * List of free and busy io_u's |
| 196 | */ |
| 197 | struct flist_head io_u_freelist; |
| 198 | struct flist_head io_u_busylist; |
| 199 | struct flist_head io_u_requeues; |
| 200 | pthread_mutex_t io_u_lock; |
| 201 | pthread_cond_t free_cond; |
| 202 | |
| 203 | /* |
| 204 | * async verify offload |
| 205 | */ |
| 206 | struct flist_head verify_list; |
| 207 | pthread_t *verify_threads; |
| 208 | unsigned int nr_verify_threads; |
| 209 | pthread_cond_t verify_cond; |
| 210 | int verify_thread_exit; |
| 211 | |
| 212 | /* |
| 213 | * Rate state |
| 214 | */ |
| 215 | uint64_t rate_bps[DDIR_RWDIR_CNT]; |
| 216 | long rate_pending_usleep[DDIR_RWDIR_CNT]; |
| 217 | unsigned long rate_bytes[DDIR_RWDIR_CNT]; |
| 218 | unsigned long rate_blocks[DDIR_RWDIR_CNT]; |
| 219 | struct timeval lastrate[DDIR_RWDIR_CNT]; |
| 220 | |
| 221 | uint64_t total_io_size; |
| 222 | uint64_t fill_device_size; |
| 223 | |
| 224 | unsigned long io_issues[DDIR_RWDIR_CNT]; |
| 225 | uint64_t io_blocks[DDIR_RWDIR_CNT]; |
| 226 | uint64_t this_io_blocks[DDIR_RWDIR_CNT]; |
| 227 | uint64_t io_bytes[DDIR_RWDIR_CNT]; |
| 228 | uint64_t io_skip_bytes; |
| 229 | uint64_t this_io_bytes[DDIR_RWDIR_CNT]; |
| 230 | uint64_t zone_bytes; |
| 231 | struct fio_mutex *mutex; |
| 232 | |
| 233 | /* |
| 234 | * State for random io, a bitmap of blocks done vs not done |
| 235 | */ |
| 236 | union { |
| 237 | os_random_state_t random_state; |
| 238 | struct frand_state __random_state; |
| 239 | }; |
| 240 | |
| 241 | struct timeval start; /* start of this loop */ |
| 242 | struct timeval epoch; /* time job was started */ |
| 243 | struct timeval last_issue; |
| 244 | struct timeval tv_cache; |
| 245 | unsigned int tv_cache_nr; |
| 246 | unsigned int tv_cache_mask; |
| 247 | unsigned int ramp_time_over; |
| 248 | |
| 249 | /* |
| 250 | * read/write mixed workload state |
| 251 | */ |
| 252 | union { |
| 253 | os_random_state_t rwmix_state; |
| 254 | struct frand_state __rwmix_state; |
| 255 | }; |
| 256 | unsigned long rwmix_issues; |
| 257 | enum fio_ddir rwmix_ddir; |
| 258 | unsigned int ddir_seq_nr; |
| 259 | |
| 260 | /* |
| 261 | * IO history logs for verification. We use a tree for sorting, |
| 262 | * if we are overwriting. Otherwise just use a fifo. |
| 263 | */ |
| 264 | struct rb_root io_hist_tree; |
| 265 | struct flist_head io_hist_list; |
| 266 | unsigned long io_hist_len; |
| 267 | |
| 268 | /* |
| 269 | * For IO replaying |
| 270 | */ |
| 271 | struct flist_head io_log_list; |
| 272 | |
| 273 | /* |
| 274 | * For tracking/handling discards |
| 275 | */ |
| 276 | struct flist_head trim_list; |
| 277 | unsigned long trim_entries; |
| 278 | |
| 279 | struct flist_head next_rand_list; |
| 280 | |
| 281 | /* |
| 282 | * for fileservice, how often to switch to a new file |
| 283 | */ |
| 284 | unsigned int file_service_nr; |
| 285 | unsigned int file_service_left; |
| 286 | struct fio_file *file_service_file; |
| 287 | |
| 288 | unsigned int sync_file_range_nr; |
| 289 | |
| 290 | /* |
| 291 | * For generating file sizes |
| 292 | */ |
| 293 | union { |
| 294 | os_random_state_t file_size_state; |
| 295 | struct frand_state __file_size_state; |
| 296 | }; |
| 297 | |
| 298 | /* |
| 299 | * Error counts |
| 300 | */ |
| 301 | unsigned int total_err_count; |
| 302 | int first_error; |
| 303 | |
| 304 | struct fio_flow *flow; |
| 305 | |
| 306 | /* |
| 307 | * Can be overloaded by profiles |
| 308 | */ |
| 309 | struct prof_io_ops prof_io_ops; |
| 310 | void *prof_data; |
| 311 | |
| 312 | void *pinned_mem; |
| 313 | }; |
| 314 | |
| 315 | /* |
| 316 | * when should interactive ETA output be generated |
| 317 | */ |
| 318 | enum { |
| 319 | FIO_ETA_AUTO, |
| 320 | FIO_ETA_ALWAYS, |
| 321 | FIO_ETA_NEVER, |
| 322 | }; |
| 323 | |
| 324 | #define __td_verror(td, err, msg, func) \ |
| 325 | do { \ |
| 326 | if ((td)->error) \ |
| 327 | break; \ |
| 328 | int e = (err); \ |
| 329 | (td)->error = e; \ |
| 330 | if (!(td)->first_error) \ |
| 331 | snprintf(td->verror, sizeof(td->verror), "file:%s:%d, func=%s, error=%s", __FILE__, __LINE__, (func), (msg)); \ |
| 332 | } while (0) |
| 333 | |
| 334 | |
| 335 | #define td_clear_error(td) \ |
| 336 | (td)->error = 0; |
| 337 | #define td_verror(td, err, func) \ |
| 338 | __td_verror((td), (err), strerror((err)), (func)) |
| 339 | #define td_vmsg(td, err, msg, func) \ |
| 340 | __td_verror((td), (err), (msg), (func)) |
| 341 | |
| 342 | #define __fio_stringify_1(x) #x |
| 343 | #define __fio_stringify(x) __fio_stringify_1(x) |
| 344 | |
| 345 | extern int exitall_on_terminate; |
| 346 | extern unsigned int thread_number; |
| 347 | extern unsigned int stat_number; |
| 348 | extern unsigned int nr_process, nr_thread; |
| 349 | extern int shm_id; |
| 350 | extern int groupid; |
| 351 | extern int output_format; |
| 352 | extern int temp_stall_ts; |
| 353 | extern uintptr_t page_mask, page_size; |
| 354 | extern int read_only; |
| 355 | extern int eta_print; |
| 356 | extern int eta_new_line; |
| 357 | extern unsigned long done_secs; |
| 358 | extern char *job_section; |
| 359 | extern int fio_gtod_offload; |
| 360 | extern int fio_gtod_cpu; |
| 361 | extern enum fio_cs fio_clock_source; |
| 362 | extern int fio_clock_source_set; |
| 363 | extern int warnings_fatal; |
| 364 | extern int terse_version; |
| 365 | extern int is_backend; |
| 366 | extern int nr_clients; |
| 367 | extern int log_syslog; |
| 368 | extern const char fio_version_string[]; |
| 369 | |
| 370 | extern struct thread_data *threads; |
| 371 | |
| 372 | static inline void fio_ro_check(struct thread_data *td, struct io_u *io_u) |
| 373 | { |
| 374 | assert(!(io_u->ddir == DDIR_WRITE && !td_write(td))); |
| 375 | } |
| 376 | |
| 377 | #define REAL_MAX_JOBS 2048 |
| 378 | |
| 379 | static inline enum error_type_bit td_error_type(enum fio_ddir ddir, int err) |
| 380 | { |
| 381 | if (err == EILSEQ) |
| 382 | return ERROR_TYPE_VERIFY_BIT; |
| 383 | if (ddir == DDIR_READ) |
| 384 | return ERROR_TYPE_READ_BIT; |
| 385 | return ERROR_TYPE_WRITE_BIT; |
| 386 | } |
| 387 | |
| 388 | static int __NON_FATAL_ERR[] = {EIO, EILSEQ}; |
| 389 | static inline int td_non_fatal_error(struct thread_data *td, |
| 390 | enum error_type_bit etype, int err) |
| 391 | { |
| 392 | int i; |
| 393 | if (!td->o.ignore_error[etype]) { |
| 394 | td->o.ignore_error[etype] = __NON_FATAL_ERR; |
| 395 | td->o.ignore_error_nr[etype] = sizeof(__NON_FATAL_ERR) |
| 396 | / sizeof(int); |
| 397 | } |
| 398 | |
| 399 | if (!(td->o.continue_on_error & (1 << etype))) |
| 400 | return 0; |
| 401 | for (i = 0; i < td->o.ignore_error_nr[etype]; i++) |
| 402 | if (td->o.ignore_error[etype][i] == err) |
| 403 | return 1; |
| 404 | return 0; |
| 405 | } |
| 406 | |
| 407 | static inline void update_error_count(struct thread_data *td, int err) |
| 408 | { |
| 409 | td->total_err_count++; |
| 410 | if (td->total_err_count == 1) |
| 411 | td->first_error = err; |
| 412 | } |
| 413 | |
| 414 | static inline int should_fsync(struct thread_data *td) |
| 415 | { |
| 416 | if (td->last_was_sync) |
| 417 | return 0; |
| 418 | if (td_write(td) || td_rw(td) || td->o.override_sync) |
| 419 | return 1; |
| 420 | |
| 421 | return 0; |
| 422 | } |
| 423 | |
| 424 | /* |
| 425 | * Init/option functions |
| 426 | */ |
| 427 | extern int __must_check parse_options(int, char **); |
| 428 | extern int parse_jobs_ini(char *, int, int); |
| 429 | extern int parse_cmd_line(int, char **); |
| 430 | extern int fio_backend(void); |
| 431 | extern void reset_fio_state(void); |
| 432 | extern void clear_io_state(struct thread_data *); |
| 433 | extern int fio_options_parse(struct thread_data *, char **, int); |
| 434 | extern void fio_keywords_init(void); |
| 435 | extern int fio_cmd_option_parse(struct thread_data *, const char *, char *); |
| 436 | extern int fio_cmd_ioengine_option_parse(struct thread_data *, const char *, char *); |
| 437 | extern void fio_fill_default_options(struct thread_data *); |
| 438 | extern int fio_show_option_help(const char *); |
| 439 | extern void fio_options_set_ioengine_opts(struct option *long_options, struct thread_data *td); |
| 440 | extern void fio_options_dup_and_init(struct option *); |
| 441 | extern void fio_options_mem_dupe(struct thread_data *); |
| 442 | extern void options_mem_dupe(void *data, struct fio_option *options); |
| 443 | extern void td_fill_rand_seeds(struct thread_data *); |
| 444 | extern void add_job_opts(const char **); |
| 445 | extern char *num2str(unsigned long, int, int, int, int); |
| 446 | extern int ioengine_load(struct thread_data *); |
| 447 | |
| 448 | #define FIO_GETOPT_JOB 0x89000000 |
| 449 | #define FIO_GETOPT_IOENGINE 0x98000000 |
| 450 | #define FIO_NR_OPTIONS (FIO_MAX_OPTS + 128) |
| 451 | |
| 452 | /* |
| 453 | * ETA/status stuff |
| 454 | */ |
| 455 | extern void print_thread_status(void); |
| 456 | extern void print_status_init(int); |
| 457 | |
| 458 | /* |
| 459 | * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it |
| 460 | * will never back again. It may cycle between running/verififying/fsyncing. |
| 461 | * Once the thread reaches TD_EXITED, it is just waiting for the core to |
| 462 | * reap it. |
| 463 | */ |
| 464 | enum { |
| 465 | TD_NOT_CREATED = 0, |
| 466 | TD_CREATED, |
| 467 | TD_INITIALIZED, |
| 468 | TD_RAMP, |
| 469 | TD_SETTING_UP, |
| 470 | TD_RUNNING, |
| 471 | TD_PRE_READING, |
| 472 | TD_VERIFYING, |
| 473 | TD_FSYNCING, |
| 474 | TD_EXITED, |
| 475 | TD_REAPED, |
| 476 | }; |
| 477 | |
| 478 | extern void td_set_runstate(struct thread_data *, int); |
| 479 | #define TERMINATE_ALL (-1) |
| 480 | extern void fio_terminate_threads(int); |
| 481 | |
| 482 | /* |
| 483 | * Memory helpers |
| 484 | */ |
| 485 | extern int __must_check fio_pin_memory(struct thread_data *); |
| 486 | extern void fio_unpin_memory(struct thread_data *); |
| 487 | extern int __must_check allocate_io_mem(struct thread_data *); |
| 488 | extern void free_io_mem(struct thread_data *); |
| 489 | |
| 490 | /* |
| 491 | * Reset stats after ramp time completes |
| 492 | */ |
| 493 | extern void reset_all_stats(struct thread_data *); |
| 494 | |
| 495 | /* |
| 496 | * blktrace support |
| 497 | */ |
| 498 | #ifdef FIO_HAVE_BLKTRACE |
| 499 | extern int is_blktrace(const char *); |
| 500 | extern int load_blktrace(struct thread_data *, const char *); |
| 501 | #endif |
| 502 | |
| 503 | /* |
| 504 | * Mark unused variables passed to ops functions as unused, to silence gcc |
| 505 | */ |
| 506 | #define fio_unused __attribute((__unused__)) |
| 507 | #define fio_init __attribute__((constructor)) |
| 508 | #define fio_exit __attribute__((destructor)) |
| 509 | |
| 510 | #define for_each_td(td, i) \ |
| 511 | for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++) |
| 512 | #define for_each_file(td, f, i) \ |
| 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)++) |
| 517 | |
| 518 | #define fio_assert(td, cond) do { \ |
| 519 | if (!(cond)) { \ |
| 520 | int *__foo = NULL; \ |
| 521 | fprintf(stderr, "file:%s:%d, assert %s failed\n", __FILE__, __LINE__, #cond); \ |
| 522 | td_set_runstate((td), TD_EXITED); \ |
| 523 | (td)->error = EFAULT; \ |
| 524 | *__foo = 0; \ |
| 525 | } \ |
| 526 | } while (0) |
| 527 | |
| 528 | static 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 | |
| 537 | static 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 | |
| 552 | static inline int should_check_rate(struct thread_data *td, |
| 553 | uint64_t *bytes_done) |
| 554 | { |
| 555 | int ret = 0; |
| 556 | |
| 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); |
| 563 | |
| 564 | return ret; |
| 565 | } |
| 566 | |
| 567 | static 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 | |
| 575 | static inline int is_power_of_2(unsigned int val) |
| 576 | { |
| 577 | return (val != 0 && ((val & (val - 1)) == 0)); |
| 578 | } |
| 579 | |
| 580 | /* |
| 581 | * We currently only need to do locking if we have verifier threads |
| 582 | * accessing our internal structures too |
| 583 | */ |
| 584 | static inline void td_io_u_lock(struct thread_data *td) |
| 585 | { |
| 586 | if (td->o.verify_async) |
| 587 | pthread_mutex_lock(&td->io_u_lock); |
| 588 | } |
| 589 | |
| 590 | static inline void td_io_u_unlock(struct thread_data *td) |
| 591 | { |
| 592 | if (td->o.verify_async) |
| 593 | pthread_mutex_unlock(&td->io_u_lock); |
| 594 | } |
| 595 | |
| 596 | static inline void td_io_u_free_notify(struct thread_data *td) |
| 597 | { |
| 598 | if (td->o.verify_async) |
| 599 | pthread_cond_signal(&td->free_cond); |
| 600 | } |
| 601 | |
| 602 | extern const char *fio_get_arch_string(int); |
| 603 | extern const char *fio_get_os_string(int); |
| 604 | |
| 605 | enum { |
| 606 | FIO_OUTPUT_TERSE = 0, |
| 607 | FIO_OUTPUT_JSON, |
| 608 | FIO_OUTPUT_NORMAL, |
| 609 | }; |
| 610 | |
| 611 | enum { |
| 612 | FIO_RAND_DIST_RANDOM = 0, |
| 613 | FIO_RAND_DIST_ZIPF, |
| 614 | FIO_RAND_DIST_PARETO, |
| 615 | }; |
| 616 | |
| 617 | enum { |
| 618 | FIO_RAND_GEN_TAUSWORTHE = 0, |
| 619 | FIO_RAND_GEN_LFSR, |
| 620 | }; |
| 621 | |
| 622 | #endif |