| 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 <getopt.h> |
| 15 | #include <inttypes.h> |
| 16 | #include <assert.h> |
| 17 | |
| 18 | #include "compiler/compiler.h" |
| 19 | #include "flist.h" |
| 20 | #include "fifo.h" |
| 21 | #include "rbtree.h" |
| 22 | #include "arch/arch.h" |
| 23 | #include "os/os.h" |
| 24 | #include "mutex.h" |
| 25 | #include "log.h" |
| 26 | #include "debug.h" |
| 27 | #include "file.h" |
| 28 | #include "io_ddir.h" |
| 29 | #include "ioengine.h" |
| 30 | #include "iolog.h" |
| 31 | |
| 32 | #ifdef FIO_HAVE_GUASI |
| 33 | #include <guasi.h> |
| 34 | #endif |
| 35 | |
| 36 | #ifdef FIO_HAVE_SOLARISAIO |
| 37 | #include <sys/asynch.h> |
| 38 | #endif |
| 39 | |
| 40 | struct group_run_stats { |
| 41 | unsigned long long max_run[2], min_run[2]; |
| 42 | unsigned long long max_bw[2], min_bw[2]; |
| 43 | unsigned long long io_kb[2]; |
| 44 | unsigned long long agg[2]; |
| 45 | }; |
| 46 | |
| 47 | /* |
| 48 | * What type of allocation to use for io buffers |
| 49 | */ |
| 50 | enum fio_memtype { |
| 51 | MEM_MALLOC = 0, /* ordinary malloc */ |
| 52 | MEM_SHM, /* use shared memory segments */ |
| 53 | MEM_SHMHUGE, /* use shared memory segments with huge pages */ |
| 54 | MEM_MMAP, /* use anonynomous mmap */ |
| 55 | MEM_MMAPHUGE, /* memory mapped huge file */ |
| 56 | }; |
| 57 | |
| 58 | /* |
| 59 | * How many depth levels to log |
| 60 | */ |
| 61 | #define FIO_IO_U_MAP_NR 8 |
| 62 | #define FIO_IO_U_LAT_U_NR 10 |
| 63 | #define FIO_IO_U_LAT_M_NR 12 |
| 64 | |
| 65 | struct thread_stat { |
| 66 | char *name; |
| 67 | char *verror; |
| 68 | int error; |
| 69 | int groupid; |
| 70 | pid_t pid; |
| 71 | char *description; |
| 72 | int members; |
| 73 | |
| 74 | struct io_log *slat_log; |
| 75 | struct io_log *clat_log; |
| 76 | struct io_log *bw_log; |
| 77 | |
| 78 | /* |
| 79 | * bandwidth and latency stats |
| 80 | */ |
| 81 | struct io_stat clat_stat[2]; /* completion latency */ |
| 82 | struct io_stat slat_stat[2]; /* submission latency */ |
| 83 | struct io_stat bw_stat[2]; /* bandwidth stats */ |
| 84 | |
| 85 | unsigned long long stat_io_bytes[2]; |
| 86 | struct timeval stat_sample_time[2]; |
| 87 | |
| 88 | /* |
| 89 | * fio system usage accounting |
| 90 | */ |
| 91 | struct rusage ru_start; |
| 92 | struct rusage ru_end; |
| 93 | unsigned long usr_time; |
| 94 | unsigned long sys_time; |
| 95 | unsigned long ctx; |
| 96 | unsigned long minf, majf; |
| 97 | |
| 98 | /* |
| 99 | * IO depth and latency stats |
| 100 | */ |
| 101 | unsigned int io_u_map[FIO_IO_U_MAP_NR]; |
| 102 | unsigned int io_u_submit[FIO_IO_U_MAP_NR]; |
| 103 | unsigned int io_u_complete[FIO_IO_U_MAP_NR]; |
| 104 | unsigned int io_u_lat_u[FIO_IO_U_LAT_U_NR]; |
| 105 | unsigned int io_u_lat_m[FIO_IO_U_LAT_M_NR]; |
| 106 | unsigned long total_io_u[2]; |
| 107 | unsigned long short_io_u[2]; |
| 108 | unsigned long total_submit; |
| 109 | unsigned long total_complete; |
| 110 | |
| 111 | unsigned long long io_bytes[2]; |
| 112 | unsigned long runtime[2]; |
| 113 | unsigned long total_run_time; |
| 114 | }; |
| 115 | |
| 116 | struct bssplit { |
| 117 | unsigned int bs; |
| 118 | unsigned char perc; |
| 119 | }; |
| 120 | |
| 121 | struct thread_options { |
| 122 | int pad; |
| 123 | char *description; |
| 124 | char *name; |
| 125 | char *directory; |
| 126 | char *filename; |
| 127 | char *opendir; |
| 128 | char *ioengine; |
| 129 | enum td_ddir td_ddir; |
| 130 | unsigned int ddir_nr; |
| 131 | unsigned int iodepth; |
| 132 | unsigned int iodepth_low; |
| 133 | unsigned int iodepth_batch; |
| 134 | unsigned int iodepth_batch_complete; |
| 135 | |
| 136 | unsigned long long size; |
| 137 | unsigned int fill_device; |
| 138 | unsigned long long file_size_low; |
| 139 | unsigned long long file_size_high; |
| 140 | unsigned long long start_offset; |
| 141 | |
| 142 | unsigned int bs[2]; |
| 143 | unsigned int ba[2]; |
| 144 | unsigned int min_bs[2]; |
| 145 | unsigned int max_bs[2]; |
| 146 | struct bssplit *bssplit[2]; |
| 147 | unsigned int bssplit_nr[2]; |
| 148 | |
| 149 | unsigned int nr_files; |
| 150 | unsigned int open_files; |
| 151 | enum file_lock_mode file_lock_mode; |
| 152 | unsigned int lockfile_batch; |
| 153 | |
| 154 | unsigned int odirect; |
| 155 | unsigned int invalidate_cache; |
| 156 | unsigned int create_serialize; |
| 157 | unsigned int create_fsync; |
| 158 | unsigned int create_on_open; |
| 159 | unsigned int end_fsync; |
| 160 | unsigned int pre_read; |
| 161 | unsigned int sync_io; |
| 162 | unsigned int verify; |
| 163 | unsigned int do_verify; |
| 164 | unsigned int verifysort; |
| 165 | unsigned int verify_interval; |
| 166 | unsigned int verify_offset; |
| 167 | unsigned int verify_pattern; |
| 168 | unsigned int verify_pattern_bytes; |
| 169 | unsigned int verify_fatal; |
| 170 | unsigned int use_thread; |
| 171 | unsigned int unlink; |
| 172 | unsigned int do_disk_util; |
| 173 | unsigned int override_sync; |
| 174 | unsigned int rand_repeatable; |
| 175 | unsigned int write_lat_log; |
| 176 | unsigned int write_bw_log; |
| 177 | unsigned int norandommap; |
| 178 | unsigned int softrandommap; |
| 179 | unsigned int bs_unaligned; |
| 180 | unsigned int fsync_on_close; |
| 181 | |
| 182 | unsigned int hugepage_size; |
| 183 | unsigned int rw_min_bs; |
| 184 | unsigned int thinktime; |
| 185 | unsigned int thinktime_spin; |
| 186 | unsigned int thinktime_blocks; |
| 187 | unsigned int fsync_blocks; |
| 188 | unsigned int start_delay; |
| 189 | unsigned long long timeout; |
| 190 | unsigned long long ramp_time; |
| 191 | unsigned int overwrite; |
| 192 | unsigned int bw_avg_time; |
| 193 | unsigned int loops; |
| 194 | unsigned long long zone_size; |
| 195 | unsigned long long zone_skip; |
| 196 | enum fio_memtype mem_type; |
| 197 | |
| 198 | unsigned int stonewall; |
| 199 | unsigned int new_group; |
| 200 | unsigned int numjobs; |
| 201 | os_cpu_mask_t cpumask; |
| 202 | unsigned int cpumask_set; |
| 203 | unsigned int iolog; |
| 204 | unsigned int rwmixcycle; |
| 205 | unsigned int rwmix[2]; |
| 206 | unsigned int nice; |
| 207 | unsigned int file_service_type; |
| 208 | unsigned int group_reporting; |
| 209 | unsigned int fadvise_hint; |
| 210 | unsigned int zero_buffers; |
| 211 | unsigned int refill_buffers; |
| 212 | unsigned int time_based; |
| 213 | unsigned int disable_clat; |
| 214 | unsigned int disable_slat; |
| 215 | unsigned int disable_bw; |
| 216 | unsigned int gtod_reduce; |
| 217 | unsigned int gtod_cpu; |
| 218 | unsigned int gtod_offload; |
| 219 | |
| 220 | char *read_iolog_file; |
| 221 | char *write_iolog_file; |
| 222 | char *bw_log_file; |
| 223 | char *lat_log_file; |
| 224 | |
| 225 | /* |
| 226 | * Pre-run and post-run shell |
| 227 | */ |
| 228 | char *exec_prerun; |
| 229 | char *exec_postrun; |
| 230 | |
| 231 | unsigned int rate; |
| 232 | unsigned int ratemin; |
| 233 | unsigned int ratecycle; |
| 234 | unsigned int rate_iops; |
| 235 | unsigned int rate_iops_min; |
| 236 | |
| 237 | char *ioscheduler; |
| 238 | |
| 239 | /* |
| 240 | * CPU "io" cycle burner |
| 241 | */ |
| 242 | unsigned int cpuload; |
| 243 | unsigned int cpucycle; |
| 244 | }; |
| 245 | |
| 246 | #define FIO_VERROR_SIZE 128 |
| 247 | |
| 248 | /* |
| 249 | * This describes a single thread/process executing a fio job. |
| 250 | */ |
| 251 | struct thread_data { |
| 252 | struct thread_options o; |
| 253 | char verror[FIO_VERROR_SIZE]; |
| 254 | pthread_t thread; |
| 255 | int thread_number; |
| 256 | int groupid; |
| 257 | struct thread_stat ts; |
| 258 | struct fio_file **files; |
| 259 | unsigned int files_size; |
| 260 | unsigned int files_index; |
| 261 | unsigned int nr_open_files; |
| 262 | unsigned int nr_done_files; |
| 263 | unsigned int nr_normal_files; |
| 264 | union { |
| 265 | unsigned int next_file; |
| 266 | os_random_state_t next_file_state; |
| 267 | }; |
| 268 | int error; |
| 269 | int done; |
| 270 | pid_t pid; |
| 271 | char *orig_buffer; |
| 272 | size_t orig_buffer_size; |
| 273 | volatile int terminate; |
| 274 | volatile int runstate; |
| 275 | unsigned int ioprio; |
| 276 | unsigned int ioprio_set; |
| 277 | unsigned int last_was_sync; |
| 278 | |
| 279 | char *mmapfile; |
| 280 | int mmapfd; |
| 281 | |
| 282 | void *iolog_buf; |
| 283 | FILE *iolog_f; |
| 284 | |
| 285 | char *sysfs_root; |
| 286 | |
| 287 | unsigned long rand_seeds[6]; |
| 288 | |
| 289 | os_random_state_t bsrange_state; |
| 290 | os_random_state_t verify_state; |
| 291 | |
| 292 | int shm_id; |
| 293 | |
| 294 | /* |
| 295 | * IO engine hooks, contains everything needed to submit an io_u |
| 296 | * to any of the available IO engines. |
| 297 | */ |
| 298 | struct ioengine_ops *io_ops; |
| 299 | |
| 300 | /* |
| 301 | * Current IO depth and list of free and busy io_u's. |
| 302 | */ |
| 303 | unsigned int cur_depth; |
| 304 | unsigned int io_u_queued; |
| 305 | struct flist_head io_u_freelist; |
| 306 | struct flist_head io_u_busylist; |
| 307 | struct flist_head io_u_requeues; |
| 308 | |
| 309 | /* |
| 310 | * Rate state |
| 311 | */ |
| 312 | unsigned long rate_usec_cycle; |
| 313 | long rate_pending_usleep; |
| 314 | unsigned long rate_bytes; |
| 315 | unsigned long rate_blocks; |
| 316 | struct timeval lastrate; |
| 317 | |
| 318 | unsigned long long total_io_size; |
| 319 | |
| 320 | unsigned long io_issues[2]; |
| 321 | unsigned long long io_blocks[2]; |
| 322 | unsigned long long io_bytes[2]; |
| 323 | unsigned long long io_skip_bytes; |
| 324 | unsigned long long this_io_bytes[2]; |
| 325 | unsigned long long zone_bytes; |
| 326 | struct fio_mutex *mutex; |
| 327 | |
| 328 | /* |
| 329 | * State for random io, a bitmap of blocks done vs not done |
| 330 | */ |
| 331 | os_random_state_t random_state; |
| 332 | |
| 333 | struct timeval start; /* start of this loop */ |
| 334 | struct timeval epoch; /* time job was started */ |
| 335 | struct timeval rw_end[2]; |
| 336 | struct timeval last_issue; |
| 337 | struct timeval tv_cache; |
| 338 | unsigned int tv_cache_nr; |
| 339 | unsigned int tv_cache_mask; |
| 340 | unsigned int rw_end_set[2]; |
| 341 | unsigned int ramp_time_over; |
| 342 | |
| 343 | /* |
| 344 | * read/write mixed workload state |
| 345 | */ |
| 346 | os_random_state_t rwmix_state; |
| 347 | unsigned long rwmix_issues; |
| 348 | enum fio_ddir rwmix_ddir; |
| 349 | unsigned int ddir_nr; |
| 350 | |
| 351 | /* |
| 352 | * IO history logs for verification. We use a tree for sorting, |
| 353 | * if we are overwriting. Otherwise just use a fifo. |
| 354 | */ |
| 355 | struct rb_root io_hist_tree; |
| 356 | struct flist_head io_hist_list; |
| 357 | |
| 358 | /* |
| 359 | * For IO replaying |
| 360 | */ |
| 361 | struct flist_head io_log_list; |
| 362 | |
| 363 | /* |
| 364 | * for fileservice, how often to switch to a new file |
| 365 | */ |
| 366 | unsigned int file_service_nr; |
| 367 | unsigned int file_service_left; |
| 368 | struct fio_file *file_service_file; |
| 369 | |
| 370 | /* |
| 371 | * For generating file sizes |
| 372 | */ |
| 373 | os_random_state_t file_size_state; |
| 374 | }; |
| 375 | |
| 376 | /* |
| 377 | * when should interactive ETA output be generated |
| 378 | */ |
| 379 | enum { |
| 380 | FIO_ETA_AUTO, |
| 381 | FIO_ETA_ALWAYS, |
| 382 | FIO_ETA_NEVER, |
| 383 | }; |
| 384 | |
| 385 | #define __td_verror(td, err, msg, func) \ |
| 386 | do { \ |
| 387 | if ((td)->error) \ |
| 388 | break; \ |
| 389 | int e = (err); \ |
| 390 | (td)->error = e; \ |
| 391 | snprintf(td->verror, sizeof(td->verror) - 1, "file:%s:%d, func=%s, error=%s", __FILE__, __LINE__, (func), (msg)); \ |
| 392 | } while (0) |
| 393 | |
| 394 | |
| 395 | #define td_verror(td, err, func) \ |
| 396 | __td_verror((td), (err), strerror((err)), (func)) |
| 397 | #define td_vmsg(td, err, msg, func) \ |
| 398 | __td_verror((td), (err), (msg), (func)) |
| 399 | |
| 400 | extern int exitall_on_terminate; |
| 401 | extern int thread_number; |
| 402 | extern int nr_process, nr_thread; |
| 403 | extern int shm_id; |
| 404 | extern int groupid; |
| 405 | extern int terse_output; |
| 406 | extern int temp_stall_ts; |
| 407 | extern unsigned long long mlock_size; |
| 408 | extern unsigned long page_mask, page_size; |
| 409 | extern int read_only; |
| 410 | extern int eta_print; |
| 411 | extern unsigned long done_secs; |
| 412 | extern char *job_section; |
| 413 | extern int fio_gtod_offload; |
| 414 | extern int fio_gtod_cpu; |
| 415 | |
| 416 | extern struct thread_data *threads; |
| 417 | |
| 418 | #define td_read(td) ((td)->o.td_ddir & TD_DDIR_READ) |
| 419 | #define td_write(td) ((td)->o.td_ddir & TD_DDIR_WRITE) |
| 420 | #define td_rw(td) (((td)->o.td_ddir & TD_DDIR_RW) == TD_DDIR_RW) |
| 421 | #define td_random(td) ((td)->o.td_ddir & TD_DDIR_RAND) |
| 422 | #define file_randommap(td, f) (!(td)->o.norandommap && (f)->file_map) |
| 423 | |
| 424 | static inline void fio_ro_check(struct thread_data *td, struct io_u *io_u) |
| 425 | { |
| 426 | assert(!(io_u->ddir == DDIR_WRITE && !td_write(td))); |
| 427 | } |
| 428 | |
| 429 | #define BLOCKS_PER_MAP (8 * sizeof(int)) |
| 430 | #define TO_MAP_BLOCK(f, b) (b) |
| 431 | #define RAND_MAP_IDX(f, b) (TO_MAP_BLOCK(f, b) / BLOCKS_PER_MAP) |
| 432 | #define RAND_MAP_BIT(f, b) (TO_MAP_BLOCK(f, b) & (BLOCKS_PER_MAP - 1)) |
| 433 | |
| 434 | #define MAX_JOBS (1024) |
| 435 | |
| 436 | static inline int should_fsync(struct thread_data *td) |
| 437 | { |
| 438 | if (td->last_was_sync) |
| 439 | return 0; |
| 440 | if (td->o.odirect) |
| 441 | return 0; |
| 442 | if (td_write(td) || td_rw(td) || td->o.override_sync) |
| 443 | return 1; |
| 444 | |
| 445 | return 0; |
| 446 | } |
| 447 | |
| 448 | /* |
| 449 | * Time functions |
| 450 | */ |
| 451 | extern unsigned long long utime_since(struct timeval *, struct timeval *); |
| 452 | extern unsigned long long utime_since_now(struct timeval *); |
| 453 | extern unsigned long mtime_since(struct timeval *, struct timeval *); |
| 454 | extern unsigned long mtime_since_now(struct timeval *); |
| 455 | extern unsigned long time_since_now(struct timeval *); |
| 456 | extern unsigned long mtime_since_genesis(void); |
| 457 | extern void usec_spin(unsigned int); |
| 458 | extern void usec_sleep(struct thread_data *, unsigned long); |
| 459 | extern void rate_throttle(struct thread_data *, unsigned long, unsigned int); |
| 460 | extern void fill_start_time(struct timeval *); |
| 461 | extern void fio_gettime(struct timeval *, void *); |
| 462 | extern void fio_gtod_init(void); |
| 463 | extern void fio_gtod_update(void); |
| 464 | extern void set_genesis_time(void); |
| 465 | extern int ramp_time_over(struct thread_data *); |
| 466 | extern int in_ramp_time(struct thread_data *); |
| 467 | |
| 468 | /* |
| 469 | * Init/option functions |
| 470 | */ |
| 471 | extern int __must_check parse_options(int, char **); |
| 472 | extern int fio_options_parse(struct thread_data *, char **, int); |
| 473 | extern int fio_cmd_option_parse(struct thread_data *, const char *, char *); |
| 474 | extern void fio_fill_default_options(struct thread_data *); |
| 475 | extern int fio_show_option_help(const char *); |
| 476 | extern void fio_options_dup_and_init(struct option *); |
| 477 | extern void options_mem_dupe(struct thread_data *); |
| 478 | extern void options_mem_free(struct thread_data *); |
| 479 | extern void td_fill_rand_seeds(struct thread_data *); |
| 480 | #define FIO_GETOPT_JOB 0x89988998 |
| 481 | #define FIO_NR_OPTIONS 128 |
| 482 | |
| 483 | /* |
| 484 | * ETA/status stuff |
| 485 | */ |
| 486 | extern void print_thread_status(void); |
| 487 | extern void print_status_init(int); |
| 488 | |
| 489 | /* |
| 490 | * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it |
| 491 | * will never back again. It may cycle between running/verififying/fsyncing. |
| 492 | * Once the thread reaches TD_EXITED, it is just waiting for the core to |
| 493 | * reap it. |
| 494 | */ |
| 495 | enum { |
| 496 | TD_NOT_CREATED = 0, |
| 497 | TD_CREATED, |
| 498 | TD_INITIALIZED, |
| 499 | TD_RAMP, |
| 500 | TD_RUNNING, |
| 501 | TD_PRE_READING, |
| 502 | TD_VERIFYING, |
| 503 | TD_FSYNCING, |
| 504 | TD_EXITED, |
| 505 | TD_REAPED, |
| 506 | }; |
| 507 | |
| 508 | extern void td_set_runstate(struct thread_data *, int); |
| 509 | |
| 510 | /* |
| 511 | * Memory helpers |
| 512 | */ |
| 513 | extern int __must_check fio_pin_memory(void); |
| 514 | extern void fio_unpin_memory(void); |
| 515 | extern int __must_check allocate_io_mem(struct thread_data *); |
| 516 | extern void free_io_mem(struct thread_data *); |
| 517 | |
| 518 | /* |
| 519 | * Reset stats after ramp time completes |
| 520 | */ |
| 521 | extern void reset_all_stats(struct thread_data *); |
| 522 | |
| 523 | /* |
| 524 | * blktrace support |
| 525 | */ |
| 526 | #ifdef FIO_HAVE_BLKTRACE |
| 527 | extern int is_blktrace(const char *); |
| 528 | extern int load_blktrace(struct thread_data *, const char *); |
| 529 | #endif |
| 530 | |
| 531 | /* |
| 532 | * Mark unused variables passed to ops functions as unused, to silence gcc |
| 533 | */ |
| 534 | #define fio_unused __attribute((__unused__)) |
| 535 | #define fio_init __attribute__((constructor)) |
| 536 | #define fio_exit __attribute__((destructor)) |
| 537 | |
| 538 | #define for_each_td(td, i) \ |
| 539 | for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++) |
| 540 | #define for_each_file(td, f, i) \ |
| 541 | if ((td)->files_index) \ |
| 542 | for ((i) = 0, (f) = (td)->files[0]; \ |
| 543 | (i) < (td)->o.nr_files && ((f) = (td)->files[i]) != NULL; \ |
| 544 | (i)++) |
| 545 | |
| 546 | #define fio_assert(td, cond) do { \ |
| 547 | if (!(cond)) { \ |
| 548 | int *__foo = NULL; \ |
| 549 | fprintf(stderr, "file:%s:%d, assert %s failed\n", __FILE__, __LINE__, #cond); \ |
| 550 | (td)->runstate = TD_EXITED; \ |
| 551 | (td)->error = EFAULT; \ |
| 552 | *__foo = 0; \ |
| 553 | } \ |
| 554 | } while (0) |
| 555 | |
| 556 | static inline void fio_file_reset(struct fio_file *f) |
| 557 | { |
| 558 | f->last_free_lookup = 0; |
| 559 | f->last_pos = f->file_offset; |
| 560 | if (f->file_map) |
| 561 | memset(f->file_map, 0, f->num_maps * sizeof(int)); |
| 562 | } |
| 563 | |
| 564 | static inline void clear_error(struct thread_data *td) |
| 565 | { |
| 566 | td->error = 0; |
| 567 | td->verror[0] = '\0'; |
| 568 | } |
| 569 | |
| 570 | #ifdef FIO_INC_DEBUG |
| 571 | static inline void dprint_io_u(struct io_u *io_u, const char *p) |
| 572 | { |
| 573 | struct fio_file *f = io_u->file; |
| 574 | |
| 575 | dprint(FD_IO, "%s: io_u %p: off=%llu/len=%lu/ddir=%d", p, io_u, |
| 576 | (unsigned long long) io_u->offset, |
| 577 | io_u->buflen, io_u->ddir); |
| 578 | if (fio_debug & (1 << FD_IO)) { |
| 579 | if (f) |
| 580 | log_info("/%s", f->file_name); |
| 581 | |
| 582 | log_info("\n"); |
| 583 | } |
| 584 | } |
| 585 | #else |
| 586 | #define dprint_io_u(io_u, p) |
| 587 | #endif |
| 588 | |
| 589 | static inline int fio_fill_issue_time(struct thread_data *td) |
| 590 | { |
| 591 | if (td->o.read_iolog_file || |
| 592 | !td->o.disable_clat || !td->o.disable_slat || !td->o.disable_bw) |
| 593 | return 1; |
| 594 | |
| 595 | return 0; |
| 596 | } |
| 597 | |
| 598 | #endif |