| 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 | |
| 28 | #ifdef FIO_HAVE_GUASI |
| 29 | #include <guasi.h> |
| 30 | #endif |
| 31 | |
| 32 | #ifdef FIO_HAVE_SOLARISAIO |
| 33 | #include <sys/asynch.h> |
| 34 | #endif |
| 35 | |
| 36 | enum fio_ddir { |
| 37 | DDIR_READ = 0, |
| 38 | DDIR_WRITE, |
| 39 | DDIR_SYNC, |
| 40 | DDIR_INVAL = -1, |
| 41 | }; |
| 42 | |
| 43 | enum td_ddir { |
| 44 | TD_DDIR_READ = 1 << 0, |
| 45 | TD_DDIR_WRITE = 1 << 1, |
| 46 | TD_DDIR_RAND = 1 << 2, |
| 47 | TD_DDIR_RW = TD_DDIR_READ | TD_DDIR_WRITE, |
| 48 | TD_DDIR_RANDREAD = TD_DDIR_READ | TD_DDIR_RAND, |
| 49 | TD_DDIR_RANDWRITE = TD_DDIR_WRITE | TD_DDIR_RAND, |
| 50 | TD_DDIR_RANDRW = TD_DDIR_RW | TD_DDIR_RAND, |
| 51 | }; |
| 52 | |
| 53 | enum file_lock_mode { |
| 54 | FILE_LOCK_NONE, |
| 55 | FILE_LOCK_EXCLUSIVE, |
| 56 | FILE_LOCK_READWRITE, |
| 57 | }; |
| 58 | |
| 59 | /* |
| 60 | * Use for maintaining statistics |
| 61 | */ |
| 62 | struct io_stat { |
| 63 | unsigned long max_val; |
| 64 | unsigned long min_val; |
| 65 | unsigned long samples; |
| 66 | |
| 67 | double mean; |
| 68 | double S; |
| 69 | }; |
| 70 | |
| 71 | /* |
| 72 | * A single data sample |
| 73 | */ |
| 74 | struct io_sample { |
| 75 | unsigned long time; |
| 76 | unsigned long val; |
| 77 | enum fio_ddir ddir; |
| 78 | }; |
| 79 | |
| 80 | /* |
| 81 | * Dynamically growing data sample log |
| 82 | */ |
| 83 | struct io_log { |
| 84 | unsigned long nr_samples; |
| 85 | unsigned long max_samples; |
| 86 | struct io_sample *log; |
| 87 | }; |
| 88 | |
| 89 | /* |
| 90 | * When logging io actions, this matches a single sent io_u |
| 91 | */ |
| 92 | struct io_piece { |
| 93 | union { |
| 94 | struct rb_node rb_node; |
| 95 | struct flist_head list; |
| 96 | }; |
| 97 | union { |
| 98 | int fileno; |
| 99 | struct fio_file *file; |
| 100 | }; |
| 101 | unsigned long long offset; |
| 102 | unsigned long len; |
| 103 | enum fio_ddir ddir; |
| 104 | union { |
| 105 | unsigned long delay; |
| 106 | unsigned int file_action; |
| 107 | }; |
| 108 | }; |
| 109 | |
| 110 | enum { |
| 111 | IO_U_F_FREE = 1 << 0, |
| 112 | IO_U_F_FLIGHT = 1 << 1, |
| 113 | }; |
| 114 | |
| 115 | struct thread_data; |
| 116 | |
| 117 | /* |
| 118 | * The io unit |
| 119 | */ |
| 120 | struct io_u { |
| 121 | union { |
| 122 | #ifdef FIO_HAVE_LIBAIO |
| 123 | struct iocb iocb; |
| 124 | #endif |
| 125 | #ifdef FIO_HAVE_POSIXAIO |
| 126 | struct aiocb aiocb; |
| 127 | #endif |
| 128 | #ifdef FIO_HAVE_SGIO |
| 129 | struct sg_io_hdr hdr; |
| 130 | #endif |
| 131 | #ifdef FIO_HAVE_GUASI |
| 132 | guasi_req_t greq; |
| 133 | #endif |
| 134 | #ifdef FIO_HAVE_SOLARISAIO |
| 135 | aio_result_t resultp; |
| 136 | #endif |
| 137 | }; |
| 138 | struct timeval start_time; |
| 139 | struct timeval issue_time; |
| 140 | |
| 141 | /* |
| 142 | * Allocated/set buffer and length |
| 143 | */ |
| 144 | void *buf; |
| 145 | unsigned long buflen; |
| 146 | unsigned long long offset; |
| 147 | unsigned long long endpos; |
| 148 | |
| 149 | /* |
| 150 | * IO engine state, may be different from above when we get |
| 151 | * partial transfers / residual data counts |
| 152 | */ |
| 153 | void *xfer_buf; |
| 154 | unsigned long xfer_buflen; |
| 155 | |
| 156 | unsigned int resid; |
| 157 | unsigned int error; |
| 158 | |
| 159 | enum fio_ddir ddir; |
| 160 | |
| 161 | /* |
| 162 | * io engine private data |
| 163 | */ |
| 164 | union { |
| 165 | unsigned int index; |
| 166 | unsigned int seen; |
| 167 | }; |
| 168 | |
| 169 | unsigned int flags; |
| 170 | |
| 171 | struct fio_file *file; |
| 172 | |
| 173 | struct flist_head list; |
| 174 | |
| 175 | /* |
| 176 | * Callback for io completion |
| 177 | */ |
| 178 | int (*end_io)(struct thread_data *, struct io_u *); |
| 179 | }; |
| 180 | |
| 181 | /* |
| 182 | * io_ops->queue() return values |
| 183 | */ |
| 184 | enum { |
| 185 | FIO_Q_COMPLETED = 0, /* completed sync */ |
| 186 | FIO_Q_QUEUED = 1, /* queued, will complete async */ |
| 187 | FIO_Q_BUSY = 2, /* no more room, call ->commit() */ |
| 188 | }; |
| 189 | |
| 190 | #define FIO_HDR_MAGIC 0xf00baaef |
| 191 | |
| 192 | enum { |
| 193 | VERIFY_NONE = 0, /* no verification */ |
| 194 | VERIFY_MD5, /* md5 sum data blocks */ |
| 195 | VERIFY_CRC64, /* crc64 sum data blocks */ |
| 196 | VERIFY_CRC32, /* crc32 sum data blocks */ |
| 197 | VERIFY_CRC16, /* crc16 sum data blocks */ |
| 198 | VERIFY_CRC7, /* crc7 sum data blocks */ |
| 199 | VERIFY_SHA256, /* sha256 sum data blocks */ |
| 200 | VERIFY_SHA512, /* sha512 sum data blocks */ |
| 201 | VERIFY_META, /* block_num, timestamp etc. */ |
| 202 | VERIFY_NULL, /* pretend to verify */ |
| 203 | }; |
| 204 | |
| 205 | /* |
| 206 | * A header structure associated with each checksummed data block. It is |
| 207 | * followed by a checksum specific header that contains the verification |
| 208 | * data. |
| 209 | */ |
| 210 | struct verify_header { |
| 211 | unsigned int fio_magic; |
| 212 | unsigned int len; |
| 213 | unsigned int verify_type; |
| 214 | }; |
| 215 | |
| 216 | struct vhdr_md5 { |
| 217 | uint32_t md5_digest[16]; |
| 218 | }; |
| 219 | struct vhdr_sha512 { |
| 220 | uint8_t sha512[128]; |
| 221 | }; |
| 222 | struct vhdr_sha256 { |
| 223 | uint8_t sha256[128]; |
| 224 | }; |
| 225 | struct vhdr_crc64 { |
| 226 | uint64_t crc64; |
| 227 | }; |
| 228 | struct vhdr_crc32 { |
| 229 | uint32_t crc32; |
| 230 | }; |
| 231 | struct vhdr_crc16 { |
| 232 | uint16_t crc16; |
| 233 | }; |
| 234 | struct vhdr_crc7 { |
| 235 | uint8_t crc7; |
| 236 | }; |
| 237 | struct vhdr_meta { |
| 238 | uint64_t offset; |
| 239 | unsigned char thread; |
| 240 | unsigned short numberio; |
| 241 | unsigned long time_sec; |
| 242 | unsigned long time_usec; |
| 243 | }; |
| 244 | |
| 245 | struct group_run_stats { |
| 246 | unsigned long long max_run[2], min_run[2]; |
| 247 | unsigned long long max_bw[2], min_bw[2]; |
| 248 | unsigned long long io_kb[2]; |
| 249 | unsigned long long agg[2]; |
| 250 | }; |
| 251 | |
| 252 | /* |
| 253 | * What type of allocation to use for io buffers |
| 254 | */ |
| 255 | enum fio_memtype { |
| 256 | MEM_MALLOC = 0, /* ordinary malloc */ |
| 257 | MEM_SHM, /* use shared memory segments */ |
| 258 | MEM_SHMHUGE, /* use shared memory segments with huge pages */ |
| 259 | MEM_MMAP, /* use anonynomous mmap */ |
| 260 | MEM_MMAPHUGE, /* memory mapped huge file */ |
| 261 | }; |
| 262 | |
| 263 | /* |
| 264 | * The type of object we are working on |
| 265 | */ |
| 266 | enum fio_filetype { |
| 267 | FIO_TYPE_FILE = 1, /* plain file */ |
| 268 | FIO_TYPE_BD, /* block device */ |
| 269 | FIO_TYPE_CHAR, /* character device */ |
| 270 | FIO_TYPE_PIPE, /* pipe */ |
| 271 | }; |
| 272 | |
| 273 | enum fio_ioengine_flags { |
| 274 | FIO_SYNCIO = 1 << 0, /* io engine has synchronous ->queue */ |
| 275 | FIO_RAWIO = 1 << 1, /* some sort of direct/raw io */ |
| 276 | FIO_DISKLESSIO = 1 << 2, /* no disk involved */ |
| 277 | FIO_NOEXTEND = 1 << 3, /* engine can't extend file */ |
| 278 | FIO_NODISKUTIL = 1 << 4, /* diskutil can't handle filename */ |
| 279 | FIO_UNIDIR = 1 << 5, /* engine is uni-directional */ |
| 280 | FIO_NOIO = 1 << 6, /* thread does only pseudo IO */ |
| 281 | FIO_SIGQUIT = 1 << 7, /* needs SIGQUIT to exit */ |
| 282 | }; |
| 283 | |
| 284 | enum fio_file_flags { |
| 285 | FIO_FILE_OPEN = 1 << 0, /* file is open */ |
| 286 | FIO_FILE_CLOSING = 1 << 1, /* file being closed */ |
| 287 | FIO_FILE_EXTEND = 1 << 2, /* needs extend */ |
| 288 | FIO_FILE_DONE = 1 << 3, /* io completed to this file */ |
| 289 | FIO_SIZE_KNOWN = 1 << 4, /* size has been set */ |
| 290 | FIO_FILE_HASHED = 1 << 5, /* file is on hash */ |
| 291 | }; |
| 292 | |
| 293 | /* |
| 294 | * Each thread_data structure has a number of files associated with it, |
| 295 | * this structure holds state information for a single file. |
| 296 | */ |
| 297 | struct fio_file { |
| 298 | struct flist_head hash_list; |
| 299 | enum fio_filetype filetype; |
| 300 | |
| 301 | /* |
| 302 | * A file may not be a file descriptor, let the io engine decide |
| 303 | */ |
| 304 | union { |
| 305 | unsigned long file_data; |
| 306 | int fd; |
| 307 | }; |
| 308 | |
| 309 | /* |
| 310 | * filename and possible memory mapping |
| 311 | */ |
| 312 | char *file_name; |
| 313 | void *mmap; |
| 314 | unsigned int major, minor; |
| 315 | |
| 316 | /* |
| 317 | * size of the file, offset into file, and io size from that offset |
| 318 | */ |
| 319 | unsigned long long real_file_size; |
| 320 | unsigned long long file_offset; |
| 321 | unsigned long long io_size; |
| 322 | |
| 323 | unsigned long long last_pos; |
| 324 | |
| 325 | /* |
| 326 | * if io is protected by a semaphore, this is set |
| 327 | */ |
| 328 | struct fio_mutex *lock; |
| 329 | void *lock_owner; |
| 330 | unsigned int lock_batch; |
| 331 | enum fio_ddir lock_ddir; |
| 332 | |
| 333 | /* |
| 334 | * block map for random io |
| 335 | */ |
| 336 | unsigned int *file_map; |
| 337 | unsigned int num_maps; |
| 338 | unsigned int last_free_lookup; |
| 339 | |
| 340 | int references; |
| 341 | enum fio_file_flags flags; |
| 342 | }; |
| 343 | |
| 344 | /* |
| 345 | * How many depth levels to log |
| 346 | */ |
| 347 | #define FIO_IO_U_MAP_NR 8 |
| 348 | #define FIO_IO_U_LAT_U_NR 10 |
| 349 | #define FIO_IO_U_LAT_M_NR 12 |
| 350 | |
| 351 | struct thread_stat { |
| 352 | char *name; |
| 353 | char *verror; |
| 354 | int error; |
| 355 | int groupid; |
| 356 | pid_t pid; |
| 357 | char *description; |
| 358 | int members; |
| 359 | |
| 360 | struct io_log *slat_log; |
| 361 | struct io_log *clat_log; |
| 362 | struct io_log *bw_log; |
| 363 | |
| 364 | /* |
| 365 | * bandwidth and latency stats |
| 366 | */ |
| 367 | struct io_stat clat_stat[2]; /* completion latency */ |
| 368 | struct io_stat slat_stat[2]; /* submission latency */ |
| 369 | struct io_stat bw_stat[2]; /* bandwidth stats */ |
| 370 | |
| 371 | unsigned long long stat_io_bytes[2]; |
| 372 | struct timeval stat_sample_time[2]; |
| 373 | |
| 374 | /* |
| 375 | * fio system usage accounting |
| 376 | */ |
| 377 | struct rusage ru_start; |
| 378 | struct rusage ru_end; |
| 379 | unsigned long usr_time; |
| 380 | unsigned long sys_time; |
| 381 | unsigned long ctx; |
| 382 | unsigned long minf, majf; |
| 383 | |
| 384 | /* |
| 385 | * IO depth and latency stats |
| 386 | */ |
| 387 | unsigned int io_u_map[FIO_IO_U_MAP_NR]; |
| 388 | unsigned int io_u_submit[FIO_IO_U_MAP_NR]; |
| 389 | unsigned int io_u_complete[FIO_IO_U_MAP_NR]; |
| 390 | unsigned int io_u_lat_u[FIO_IO_U_LAT_U_NR]; |
| 391 | unsigned int io_u_lat_m[FIO_IO_U_LAT_M_NR]; |
| 392 | unsigned long total_io_u[2]; |
| 393 | unsigned long short_io_u[2]; |
| 394 | unsigned long total_submit; |
| 395 | unsigned long total_complete; |
| 396 | |
| 397 | unsigned long long io_bytes[2]; |
| 398 | unsigned long runtime[2]; |
| 399 | unsigned long total_run_time; |
| 400 | }; |
| 401 | |
| 402 | struct bssplit { |
| 403 | unsigned int bs; |
| 404 | unsigned char perc; |
| 405 | }; |
| 406 | |
| 407 | struct thread_options { |
| 408 | int pad; |
| 409 | char *description; |
| 410 | char *name; |
| 411 | char *directory; |
| 412 | char *filename; |
| 413 | char *opendir; |
| 414 | char *ioengine; |
| 415 | enum td_ddir td_ddir; |
| 416 | unsigned int ddir_nr; |
| 417 | unsigned int iodepth; |
| 418 | unsigned int iodepth_low; |
| 419 | unsigned int iodepth_batch; |
| 420 | |
| 421 | unsigned long long size; |
| 422 | unsigned int fill_device; |
| 423 | unsigned long long file_size_low; |
| 424 | unsigned long long file_size_high; |
| 425 | unsigned long long start_offset; |
| 426 | |
| 427 | unsigned int bs[2]; |
| 428 | unsigned int min_bs[2]; |
| 429 | unsigned int max_bs[2]; |
| 430 | struct bssplit *bssplit; |
| 431 | unsigned int bssplit_nr; |
| 432 | |
| 433 | unsigned int nr_files; |
| 434 | unsigned int open_files; |
| 435 | enum file_lock_mode file_lock_mode; |
| 436 | unsigned int lockfile_batch; |
| 437 | |
| 438 | unsigned int odirect; |
| 439 | unsigned int invalidate_cache; |
| 440 | unsigned int create_serialize; |
| 441 | unsigned int create_fsync; |
| 442 | unsigned int end_fsync; |
| 443 | unsigned int sync_io; |
| 444 | unsigned int verify; |
| 445 | unsigned int do_verify; |
| 446 | unsigned int verifysort; |
| 447 | unsigned int verify_interval; |
| 448 | unsigned int verify_offset; |
| 449 | unsigned int verify_pattern; |
| 450 | unsigned int verify_pattern_bytes; |
| 451 | unsigned int verify_fatal; |
| 452 | unsigned int use_thread; |
| 453 | unsigned int unlink; |
| 454 | unsigned int do_disk_util; |
| 455 | unsigned int override_sync; |
| 456 | unsigned int rand_repeatable; |
| 457 | unsigned int write_lat_log; |
| 458 | unsigned int write_bw_log; |
| 459 | unsigned int norandommap; |
| 460 | unsigned int softrandommap; |
| 461 | unsigned int bs_unaligned; |
| 462 | unsigned int fsync_on_close; |
| 463 | |
| 464 | unsigned int hugepage_size; |
| 465 | unsigned int rw_min_bs; |
| 466 | unsigned int thinktime; |
| 467 | unsigned int thinktime_spin; |
| 468 | unsigned int thinktime_blocks; |
| 469 | unsigned int fsync_blocks; |
| 470 | unsigned int start_delay; |
| 471 | unsigned long long timeout; |
| 472 | unsigned int overwrite; |
| 473 | unsigned int bw_avg_time; |
| 474 | unsigned int loops; |
| 475 | unsigned long long zone_size; |
| 476 | unsigned long long zone_skip; |
| 477 | enum fio_memtype mem_type; |
| 478 | |
| 479 | unsigned int stonewall; |
| 480 | unsigned int new_group; |
| 481 | unsigned int numjobs; |
| 482 | os_cpu_mask_t cpumask; |
| 483 | unsigned int cpumask_set; |
| 484 | unsigned int iolog; |
| 485 | unsigned int rwmixcycle; |
| 486 | unsigned int rwmix[2]; |
| 487 | unsigned int nice; |
| 488 | unsigned int file_service_type; |
| 489 | unsigned int group_reporting; |
| 490 | unsigned int fadvise_hint; |
| 491 | unsigned int zero_buffers; |
| 492 | unsigned int refill_buffers; |
| 493 | unsigned int time_based; |
| 494 | |
| 495 | char *read_iolog_file; |
| 496 | char *write_iolog_file; |
| 497 | |
| 498 | /* |
| 499 | * Pre-run and post-run shell |
| 500 | */ |
| 501 | char *exec_prerun; |
| 502 | char *exec_postrun; |
| 503 | |
| 504 | unsigned int rate; |
| 505 | unsigned int ratemin; |
| 506 | unsigned int ratecycle; |
| 507 | unsigned int rate_iops; |
| 508 | unsigned int rate_iops_min; |
| 509 | |
| 510 | char *ioscheduler; |
| 511 | |
| 512 | /* |
| 513 | * CPU "io" cycle burner |
| 514 | */ |
| 515 | unsigned int cpuload; |
| 516 | unsigned int cpucycle; |
| 517 | }; |
| 518 | |
| 519 | #define FIO_VERROR_SIZE 128 |
| 520 | |
| 521 | /* |
| 522 | * This describes a single thread/process executing a fio job. |
| 523 | */ |
| 524 | struct thread_data { |
| 525 | struct thread_options o; |
| 526 | char verror[FIO_VERROR_SIZE]; |
| 527 | pthread_t thread; |
| 528 | int thread_number; |
| 529 | int groupid; |
| 530 | struct thread_stat ts; |
| 531 | struct fio_file **files; |
| 532 | unsigned int files_index; |
| 533 | unsigned int nr_open_files; |
| 534 | unsigned int nr_done_files; |
| 535 | unsigned int nr_normal_files; |
| 536 | union { |
| 537 | unsigned int next_file; |
| 538 | os_random_state_t next_file_state; |
| 539 | }; |
| 540 | int error; |
| 541 | int done; |
| 542 | pid_t pid; |
| 543 | char *orig_buffer; |
| 544 | size_t orig_buffer_size; |
| 545 | volatile int terminate; |
| 546 | volatile int runstate; |
| 547 | unsigned int ioprio; |
| 548 | unsigned int ioprio_set; |
| 549 | unsigned int last_was_sync; |
| 550 | |
| 551 | char *mmapfile; |
| 552 | int mmapfd; |
| 553 | |
| 554 | void *iolog_buf; |
| 555 | FILE *iolog_f; |
| 556 | |
| 557 | char *sysfs_root; |
| 558 | |
| 559 | os_random_state_t bsrange_state; |
| 560 | os_random_state_t verify_state; |
| 561 | |
| 562 | int shm_id; |
| 563 | |
| 564 | /* |
| 565 | * IO engine hooks, contains everything needed to submit an io_u |
| 566 | * to any of the available IO engines. |
| 567 | */ |
| 568 | struct ioengine_ops *io_ops; |
| 569 | |
| 570 | /* |
| 571 | * Current IO depth and list of free and busy io_u's. |
| 572 | */ |
| 573 | unsigned int cur_depth; |
| 574 | unsigned int io_u_queued; |
| 575 | struct flist_head io_u_freelist; |
| 576 | struct flist_head io_u_busylist; |
| 577 | struct flist_head io_u_requeues; |
| 578 | |
| 579 | /* |
| 580 | * Rate state |
| 581 | */ |
| 582 | unsigned long rate_usec_cycle; |
| 583 | long rate_pending_usleep; |
| 584 | unsigned long rate_bytes; |
| 585 | unsigned long rate_blocks; |
| 586 | struct timeval lastrate; |
| 587 | |
| 588 | unsigned long long total_io_size; |
| 589 | |
| 590 | unsigned long io_issues[2]; |
| 591 | unsigned long long io_blocks[2]; |
| 592 | unsigned long long io_bytes[2]; |
| 593 | unsigned long long io_skip_bytes; |
| 594 | unsigned long long this_io_bytes[2]; |
| 595 | unsigned long long zone_bytes; |
| 596 | struct fio_mutex *mutex; |
| 597 | |
| 598 | /* |
| 599 | * State for random io, a bitmap of blocks done vs not done |
| 600 | */ |
| 601 | os_random_state_t random_state; |
| 602 | |
| 603 | struct timeval start; /* start of this loop */ |
| 604 | struct timeval epoch; /* time job was started */ |
| 605 | struct timeval rw_end[2]; |
| 606 | struct timeval last_issue; |
| 607 | unsigned int rw_end_set[2]; |
| 608 | |
| 609 | /* |
| 610 | * read/write mixed workload state |
| 611 | */ |
| 612 | os_random_state_t rwmix_state; |
| 613 | unsigned long rwmix_issues; |
| 614 | enum fio_ddir rwmix_ddir; |
| 615 | unsigned int ddir_nr; |
| 616 | |
| 617 | /* |
| 618 | * IO history logs for verification. We use a tree for sorting, |
| 619 | * if we are overwriting. Otherwise just use a fifo. |
| 620 | */ |
| 621 | struct rb_root io_hist_tree; |
| 622 | struct flist_head io_hist_list; |
| 623 | |
| 624 | /* |
| 625 | * For IO replaying |
| 626 | */ |
| 627 | struct flist_head io_log_list; |
| 628 | |
| 629 | /* |
| 630 | * timeout handling |
| 631 | */ |
| 632 | struct timeval timeout_end; |
| 633 | struct itimerval timer; |
| 634 | |
| 635 | /* |
| 636 | * for fileservice, how often to switch to a new file |
| 637 | */ |
| 638 | unsigned int file_service_nr; |
| 639 | unsigned int file_service_left; |
| 640 | struct fio_file *file_service_file; |
| 641 | |
| 642 | /* |
| 643 | * For generating file sizes |
| 644 | */ |
| 645 | os_random_state_t file_size_state; |
| 646 | }; |
| 647 | |
| 648 | /* |
| 649 | * roundrobin available files, or choose one at random. |
| 650 | */ |
| 651 | enum { |
| 652 | FIO_FSERVICE_RANDOM = 1, |
| 653 | FIO_FSERVICE_RR = 2, |
| 654 | }; |
| 655 | |
| 656 | /* |
| 657 | * when should interactive ETA output be generated |
| 658 | */ |
| 659 | enum { |
| 660 | FIO_ETA_AUTO, |
| 661 | FIO_ETA_ALWAYS, |
| 662 | FIO_ETA_NEVER, |
| 663 | }; |
| 664 | |
| 665 | /* |
| 666 | * 30 second per-io_u timeout, with 5 second intervals to avoid resetting |
| 667 | * the timer on each queue operation. |
| 668 | */ |
| 669 | #define IO_U_TIMEOUT_INC 5 |
| 670 | #define IO_U_TIMEOUT 30 |
| 671 | |
| 672 | #define __td_verror(td, err, msg, func) \ |
| 673 | do { \ |
| 674 | if ((td)->error) \ |
| 675 | break; \ |
| 676 | int e = (err); \ |
| 677 | (td)->error = e; \ |
| 678 | snprintf(td->verror, sizeof(td->verror) - 1, "file:%s:%d, func=%s, error=%s", __FILE__, __LINE__, (func), (msg)); \ |
| 679 | } while (0) |
| 680 | |
| 681 | |
| 682 | #define td_verror(td, err, func) \ |
| 683 | __td_verror((td), (err), strerror((err)), (func)) |
| 684 | #define td_vmsg(td, err, msg, func) \ |
| 685 | __td_verror((td), (err), (msg), (func)) |
| 686 | |
| 687 | extern int exitall_on_terminate; |
| 688 | extern int thread_number; |
| 689 | extern int nr_process, nr_thread; |
| 690 | extern int shm_id; |
| 691 | extern int groupid; |
| 692 | extern int terse_output; |
| 693 | extern int temp_stall_ts; |
| 694 | extern unsigned long long mlock_size; |
| 695 | extern unsigned long page_mask, page_size; |
| 696 | extern int read_only; |
| 697 | extern int eta_print; |
| 698 | extern unsigned long done_secs; |
| 699 | extern char *job_section; |
| 700 | |
| 701 | extern struct thread_data *threads; |
| 702 | |
| 703 | #define td_read(td) ((td)->o.td_ddir & TD_DDIR_READ) |
| 704 | #define td_write(td) ((td)->o.td_ddir & TD_DDIR_WRITE) |
| 705 | #define td_rw(td) (((td)->o.td_ddir & TD_DDIR_RW) == TD_DDIR_RW) |
| 706 | #define td_random(td) ((td)->o.td_ddir & TD_DDIR_RAND) |
| 707 | #define file_randommap(td, f) (!(td)->o.norandommap && (f)->file_map) |
| 708 | |
| 709 | static inline void fio_ro_check(struct thread_data *td, struct io_u *io_u) |
| 710 | { |
| 711 | assert(!(io_u->ddir == DDIR_WRITE && !td_write(td))); |
| 712 | } |
| 713 | |
| 714 | #define BLOCKS_PER_MAP (8 * sizeof(int)) |
| 715 | #define TO_MAP_BLOCK(f, b) (b) |
| 716 | #define RAND_MAP_IDX(f, b) (TO_MAP_BLOCK(f, b) / BLOCKS_PER_MAP) |
| 717 | #define RAND_MAP_BIT(f, b) (TO_MAP_BLOCK(f, b) & (BLOCKS_PER_MAP - 1)) |
| 718 | |
| 719 | #define MAX_JOBS (1024) |
| 720 | |
| 721 | static inline int should_fsync(struct thread_data *td) |
| 722 | { |
| 723 | if (td->last_was_sync) |
| 724 | return 0; |
| 725 | if (td->o.odirect) |
| 726 | return 0; |
| 727 | if (td_write(td) || td_rw(td) || td->o.override_sync) |
| 728 | return 1; |
| 729 | |
| 730 | return 0; |
| 731 | } |
| 732 | |
| 733 | /* |
| 734 | * Disk utils as read in /sys/block/<dev>/stat |
| 735 | */ |
| 736 | struct disk_util_stat { |
| 737 | unsigned ios[2]; |
| 738 | unsigned merges[2]; |
| 739 | unsigned long long sectors[2]; |
| 740 | unsigned ticks[2]; |
| 741 | unsigned io_ticks; |
| 742 | unsigned time_in_queue; |
| 743 | }; |
| 744 | |
| 745 | /* |
| 746 | * Per-device disk util management |
| 747 | */ |
| 748 | struct disk_util { |
| 749 | struct flist_head list; |
| 750 | |
| 751 | char *name; |
| 752 | char *sysfs_root; |
| 753 | char path[256]; |
| 754 | int major, minor; |
| 755 | |
| 756 | struct disk_util_stat dus; |
| 757 | struct disk_util_stat last_dus; |
| 758 | |
| 759 | unsigned long msec; |
| 760 | struct timeval time; |
| 761 | }; |
| 762 | |
| 763 | #define DISK_UTIL_MSEC (250) |
| 764 | |
| 765 | /* |
| 766 | * Log exports |
| 767 | */ |
| 768 | enum file_log_act { |
| 769 | FIO_LOG_ADD_FILE, |
| 770 | FIO_LOG_OPEN_FILE, |
| 771 | FIO_LOG_CLOSE_FILE, |
| 772 | FIO_LOG_UNLINK_FILE, |
| 773 | }; |
| 774 | |
| 775 | extern int __must_check read_iolog_get(struct thread_data *, struct io_u *); |
| 776 | extern void log_io_u(struct thread_data *, struct io_u *); |
| 777 | extern void log_file(struct thread_data *, struct fio_file *, enum file_log_act); |
| 778 | extern int __must_check init_iolog(struct thread_data *td); |
| 779 | extern void log_io_piece(struct thread_data *, struct io_u *); |
| 780 | extern void queue_io_piece(struct thread_data *, struct io_piece *); |
| 781 | extern void prune_io_piece_log(struct thread_data *); |
| 782 | extern void write_iolog_close(struct thread_data *); |
| 783 | |
| 784 | /* |
| 785 | * Logging |
| 786 | */ |
| 787 | extern void add_clat_sample(struct thread_data *, enum fio_ddir, unsigned long); |
| 788 | extern void add_slat_sample(struct thread_data *, enum fio_ddir, unsigned long); |
| 789 | extern void add_bw_sample(struct thread_data *, enum fio_ddir, struct timeval *); |
| 790 | extern void show_run_stats(void); |
| 791 | extern void init_disk_util(struct thread_data *); |
| 792 | extern void update_rusage_stat(struct thread_data *); |
| 793 | extern void update_io_ticks(void); |
| 794 | extern void setup_log(struct io_log **); |
| 795 | extern void finish_log(struct thread_data *, struct io_log *, const char *); |
| 796 | extern void __finish_log(struct io_log *, const char *); |
| 797 | extern struct io_log *agg_io_log[2]; |
| 798 | extern int write_bw_log; |
| 799 | extern void add_agg_sample(unsigned long, enum fio_ddir); |
| 800 | |
| 801 | /* |
| 802 | * Time functions |
| 803 | */ |
| 804 | extern unsigned long long utime_since(struct timeval *, struct timeval *); |
| 805 | extern unsigned long long utime_since_now(struct timeval *); |
| 806 | extern unsigned long mtime_since(struct timeval *, struct timeval *); |
| 807 | extern unsigned long mtime_since_now(struct timeval *); |
| 808 | extern unsigned long time_since_now(struct timeval *); |
| 809 | extern unsigned long mtime_since_genesis(void); |
| 810 | extern void __usec_sleep(unsigned int); |
| 811 | extern void usec_sleep(struct thread_data *, unsigned long); |
| 812 | extern void rate_throttle(struct thread_data *, unsigned long, unsigned int); |
| 813 | extern void fill_start_time(struct timeval *); |
| 814 | extern void fio_gettime(struct timeval *, void *); |
| 815 | extern void set_genesis_time(void); |
| 816 | |
| 817 | /* |
| 818 | * Init/option functions |
| 819 | */ |
| 820 | extern int __must_check parse_options(int, char **); |
| 821 | extern int fio_option_parse(struct thread_data *, const char *); |
| 822 | extern int fio_cmd_option_parse(struct thread_data *, const char *, char *); |
| 823 | extern void fio_fill_default_options(struct thread_data *); |
| 824 | extern int fio_show_option_help(const char *); |
| 825 | extern void fio_options_dup_and_init(struct option *); |
| 826 | extern void options_mem_dupe(struct thread_data *); |
| 827 | extern void options_mem_free(struct thread_data *); |
| 828 | #define FIO_GETOPT_JOB 0x89988998 |
| 829 | #define FIO_NR_OPTIONS 128 |
| 830 | |
| 831 | /* |
| 832 | * File setup/shutdown |
| 833 | */ |
| 834 | extern void close_files(struct thread_data *); |
| 835 | extern void close_and_free_files(struct thread_data *); |
| 836 | extern int __must_check setup_files(struct thread_data *); |
| 837 | extern int __must_check open_files(struct thread_data *); |
| 838 | extern int __must_check file_invalidate_cache(struct thread_data *, struct fio_file *); |
| 839 | extern int __must_check generic_open_file(struct thread_data *, struct fio_file *); |
| 840 | extern int __must_check generic_close_file(struct thread_data *, struct fio_file *); |
| 841 | extern int add_file(struct thread_data *, const char *); |
| 842 | extern void get_file(struct fio_file *); |
| 843 | extern int __must_check put_file(struct thread_data *, struct fio_file *); |
| 844 | extern void lock_file(struct thread_data *, struct fio_file *, enum fio_ddir); |
| 845 | extern void unlock_file(struct thread_data *, struct fio_file *); |
| 846 | extern void unlock_file_all(struct thread_data *, struct fio_file *); |
| 847 | extern int add_dir_files(struct thread_data *, const char *); |
| 848 | extern int init_random_map(struct thread_data *); |
| 849 | extern void dup_files(struct thread_data *, struct thread_data *); |
| 850 | extern int get_fileno(struct thread_data *, const char *); |
| 851 | extern void free_release_files(struct thread_data *); |
| 852 | |
| 853 | /* |
| 854 | * ETA/status stuff |
| 855 | */ |
| 856 | extern void print_thread_status(void); |
| 857 | extern void print_status_init(int); |
| 858 | |
| 859 | /* |
| 860 | * disk util stuff |
| 861 | */ |
| 862 | #ifdef FIO_HAVE_DISK_UTIL |
| 863 | extern void show_disk_util(void); |
| 864 | extern void init_disk_util(struct thread_data *); |
| 865 | extern void update_io_ticks(void); |
| 866 | #else |
| 867 | #define show_disk_util() |
| 868 | #define init_disk_util(td) |
| 869 | #define update_io_ticks() |
| 870 | #endif |
| 871 | |
| 872 | /* |
| 873 | * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it |
| 874 | * will never back again. It may cycle between running/verififying/fsyncing. |
| 875 | * Once the thread reaches TD_EXITED, it is just waiting for the core to |
| 876 | * reap it. |
| 877 | */ |
| 878 | enum { |
| 879 | TD_NOT_CREATED = 0, |
| 880 | TD_CREATED, |
| 881 | TD_INITIALIZED, |
| 882 | TD_RUNNING, |
| 883 | TD_VERIFYING, |
| 884 | TD_FSYNCING, |
| 885 | TD_EXITED, |
| 886 | TD_REAPED, |
| 887 | }; |
| 888 | |
| 889 | /* |
| 890 | * Verify helpers |
| 891 | */ |
| 892 | extern void populate_verify_io_u(struct thread_data *, struct io_u *); |
| 893 | extern int __must_check get_next_verify(struct thread_data *td, struct io_u *); |
| 894 | extern int __must_check verify_io_u(struct thread_data *, struct io_u *); |
| 895 | |
| 896 | /* |
| 897 | * Memory helpers |
| 898 | */ |
| 899 | extern int __must_check fio_pin_memory(void); |
| 900 | extern void fio_unpin_memory(void); |
| 901 | extern int __must_check allocate_io_mem(struct thread_data *); |
| 902 | extern void free_io_mem(struct thread_data *); |
| 903 | |
| 904 | /* |
| 905 | * io unit handling |
| 906 | */ |
| 907 | #define queue_full(td) flist_empty(&(td)->io_u_freelist) |
| 908 | extern struct io_u *__get_io_u(struct thread_data *); |
| 909 | extern struct io_u *get_io_u(struct thread_data *); |
| 910 | extern void put_io_u(struct thread_data *, struct io_u *); |
| 911 | extern void requeue_io_u(struct thread_data *, struct io_u **); |
| 912 | extern long __must_check io_u_sync_complete(struct thread_data *, struct io_u *); |
| 913 | extern long __must_check io_u_queued_complete(struct thread_data *, int); |
| 914 | extern void io_u_queued(struct thread_data *, struct io_u *); |
| 915 | extern void io_u_log_error(struct thread_data *, struct io_u *); |
| 916 | extern void io_u_init_timeout(void); |
| 917 | extern void io_u_set_timeout(struct thread_data *); |
| 918 | extern void io_u_mark_depth(struct thread_data *, unsigned int); |
| 919 | extern void io_u_fill_buffer(struct thread_data *td, struct io_u *, unsigned int); |
| 920 | void io_u_mark_complete(struct thread_data *, unsigned int); |
| 921 | void io_u_mark_submit(struct thread_data *, unsigned int); |
| 922 | |
| 923 | /* |
| 924 | * io engine entry points |
| 925 | */ |
| 926 | extern int __must_check td_io_init(struct thread_data *); |
| 927 | extern int __must_check td_io_prep(struct thread_data *, struct io_u *); |
| 928 | extern int __must_check td_io_queue(struct thread_data *, struct io_u *); |
| 929 | extern int __must_check td_io_sync(struct thread_data *, struct fio_file *); |
| 930 | extern int __must_check td_io_getevents(struct thread_data *, unsigned int, unsigned int, struct timespec *); |
| 931 | extern int __must_check td_io_commit(struct thread_data *); |
| 932 | extern int __must_check td_io_open_file(struct thread_data *, struct fio_file *); |
| 933 | extern int td_io_close_file(struct thread_data *, struct fio_file *); |
| 934 | |
| 935 | /* |
| 936 | * blktrace support |
| 937 | */ |
| 938 | #ifdef FIO_HAVE_BLKTRACE |
| 939 | extern int is_blktrace(const char *); |
| 940 | extern int load_blktrace(struct thread_data *, const char *); |
| 941 | #endif |
| 942 | |
| 943 | struct ioengine_ops { |
| 944 | struct flist_head list; |
| 945 | char name[16]; |
| 946 | int version; |
| 947 | int flags; |
| 948 | int (*setup)(struct thread_data *); |
| 949 | int (*init)(struct thread_data *); |
| 950 | int (*prep)(struct thread_data *, struct io_u *); |
| 951 | int (*queue)(struct thread_data *, struct io_u *); |
| 952 | int (*commit)(struct thread_data *); |
| 953 | int (*getevents)(struct thread_data *, unsigned int, unsigned int, struct timespec *); |
| 954 | struct io_u *(*event)(struct thread_data *, int); |
| 955 | int (*cancel)(struct thread_data *, struct io_u *); |
| 956 | void (*cleanup)(struct thread_data *); |
| 957 | int (*open_file)(struct thread_data *, struct fio_file *); |
| 958 | int (*close_file)(struct thread_data *, struct fio_file *); |
| 959 | void *data; |
| 960 | void *dlhandle; |
| 961 | }; |
| 962 | |
| 963 | #define FIO_IOOPS_VERSION 9 |
| 964 | |
| 965 | extern struct ioengine_ops *load_ioengine(struct thread_data *, const char *); |
| 966 | extern void register_ioengine(struct ioengine_ops *); |
| 967 | extern void unregister_ioengine(struct ioengine_ops *); |
| 968 | extern void close_ioengine(struct thread_data *); |
| 969 | |
| 970 | /* |
| 971 | * Mark unused variables passed to ops functions as unused, to silence gcc |
| 972 | */ |
| 973 | #define fio_unused __attribute((__unused__)) |
| 974 | #define fio_init __attribute__((constructor)) |
| 975 | #define fio_exit __attribute__((destructor)) |
| 976 | |
| 977 | #define for_each_td(td, i) \ |
| 978 | for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++) |
| 979 | #define for_each_file(td, f, i) \ |
| 980 | if ((td)->files_index) \ |
| 981 | for ((i) = 0, (f) = (td)->files[0]; \ |
| 982 | (i) < (td)->o.nr_files && ((f) = (td)->files[i]) != NULL; \ |
| 983 | (i)++) |
| 984 | |
| 985 | #define fio_assert(td, cond) do { \ |
| 986 | if (!(cond)) { \ |
| 987 | int *__foo = NULL; \ |
| 988 | fprintf(stderr, "file:%s:%d, assert %s failed\n", __FILE__, __LINE__, #cond); \ |
| 989 | (td)->runstate = TD_EXITED; \ |
| 990 | (td)->error = EFAULT; \ |
| 991 | *__foo = 0; \ |
| 992 | } \ |
| 993 | } while (0) |
| 994 | |
| 995 | static inline void fio_file_reset(struct fio_file *f) |
| 996 | { |
| 997 | f->last_free_lookup = 0; |
| 998 | f->last_pos = f->file_offset; |
| 999 | } |
| 1000 | |
| 1001 | static inline void clear_error(struct thread_data *td) |
| 1002 | { |
| 1003 | td->error = 0; |
| 1004 | td->verror[0] = '\0'; |
| 1005 | } |
| 1006 | |
| 1007 | #ifdef FIO_INC_DEBUG |
| 1008 | static inline void dprint_io_u(struct io_u *io_u, const char *p) |
| 1009 | { |
| 1010 | struct fio_file *f = io_u->file; |
| 1011 | |
| 1012 | dprint(FD_IO, "%s: io_u %p: off=%llu/len=%lu/ddir=%d", p, io_u, |
| 1013 | (unsigned long long) io_u->offset, |
| 1014 | io_u->buflen, io_u->ddir); |
| 1015 | if (fio_debug & (1 << FD_IO)) { |
| 1016 | if (f) |
| 1017 | log_info("/%s", f->file_name); |
| 1018 | |
| 1019 | log_info("\n"); |
| 1020 | } |
| 1021 | } |
| 1022 | #else |
| 1023 | #define dprint_io_u(io_u, p) |
| 1024 | #endif |
| 1025 | |
| 1026 | #endif |