fio-ini.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <unistd.h>
   4 #include <fcntl.h>
   5 #include <ctype.h>
   6 #include <string.h>
   7 #include <errno.h>
   8 #include <sys/ipc.h>
   9 #include <sys/shm.h>
  10 #include <sys/types.h>
  11 #include <sys/stat.h>
  12
  13 #include "fio.h"
  14
  15 #define DEF_BS                  (4096)
  16 #define DEF_TIMEOUT             (0)
  17 #define DEF_RATE_CYCLE          (1000)
  18 #define DEF_ODIRECT             (1)
  19 #define DEF_IO_ENGINE           (FIO_SYNCIO)
  20 #define DEF_IO_ENGINE_NAME      "sync"
  21 #define DEF_SEQUENTIAL          (1)
  22 #define DEF_RAND_REPEAT         (1)
  23 #define DEF_OVERWRITE           (1)
  24 #define DEF_CREATE              (1)
  25 #define DEF_INVALIDATE          (1)
  26 #define DEF_SYNCIO              (0)
  27 #define DEF_RANDSEED            (0xb1899bedUL)
  28 #define DEF_BWAVGTIME           (500)
  29 #define DEF_CREATE_SER          (1)
  30 #define DEF_CREATE_FSYNC        (1)
  31 #define DEF_LOOPS               (1)
  32 #define DEF_VERIFY              (0)
  33 #define DEF_STONEWALL           (0)
  34 #define DEF_NUMJOBS             (1)
  35 #define DEF_USE_THREAD          (0)
  36 #define DEF_FILE_SIZE           (1024 * 1024 * 1024UL)
  37 #define DEF_ZONE_SIZE           (0)
  38 #define DEF_ZONE_SKIP           (0)
  39
  40 static char fio_version_string[] = "fio 1.3";
  41
  42 static int repeatable = DEF_RAND_REPEAT;
  43 static char *ini_file;
  44 static int max_jobs = MAX_JOBS;
  45
  46 struct thread_data def_thread;
  47 struct thread_data *threads = NULL;
  48
  49 int rate_quit = 0;
  50 int write_lat_log = 0;
  51 int write_bw_log = 0;
  52 int exitall_on_terminate = 0;
  53
  54 static int setup_rate(struct thread_data *td)
  55 {
  56         int nr_reads_per_sec;
  57
  58         if (!td->rate)
  59                 return 0;
  60
  61         if (td->rate < td->ratemin) {
  62                 fprintf(stderr, "min rate larger than nominal rate\n");
  63                 return -1;
  64         }
  65
  66         nr_reads_per_sec = (td->rate * 1024) / td->min_bs;
  67         td->rate_usec_cycle = 1000000 / nr_reads_per_sec;
  68         td->rate_pending_usleep = 0;
  69         return 0;
  70 }
  71
  72 static void setup_log(struct io_log **log)
  73 {
  74         struct io_log *l = malloc(sizeof(*l));
  75
  76         l->nr_samples = 0;
  77         l->max_samples = 1024;
  78         l->log = malloc(l->max_samples * sizeof(struct io_sample));
  79         *log = l;
  80 }
  81
  82 void finish_log(struct thread_data *td, struct io_log *log, const char *name)
  83 {
  84         char file_name[256];
  85         FILE *f;
  86         unsigned int i;
  87
  88         snprintf(file_name, 200, "client%d_%s.log", td->thread_number, name);
  89         f = fopen(file_name, "w");
  90         if (!f) {
  91                 perror("fopen log");
  92                 return;
  93         }
  94
  95         for (i = 0; i < log->nr_samples; i++)
  96                 fprintf(f, "%lu, %lu, %u\n", log->log[i].time, log->log[i].val, log->log[i].ddir);
  97
  98         fclose(f);
  99         free(log->log);
 100         free(log);
 101 }
 102
 103 static struct thread_data *get_new_job(int global, struct thread_data *parent)
 104 {
 105         struct thread_data *td;
 106
 107         if (global)
 108                 return &def_thread;
 109         if (thread_number >= max_jobs)
 110                 return NULL;
 111
 112         td = &threads[thread_number++];
 113         memset(td, 0, sizeof(*td));
 114
 115         td->fd = -1;
 116         td->thread_number = thread_number;
 117
 118         td->ddir = parent->ddir;
 119         td->ioprio = parent->ioprio;
 120         td->sequential = parent->sequential;
 121         td->bs = parent->bs;
 122         td->min_bs = parent->min_bs;
 123         td->max_bs = parent->max_bs;
 124         td->odirect = parent->odirect;
 125         td->thinktime = parent->thinktime;
 126         td->fsync_blocks = parent->fsync_blocks;
 127         td->start_delay = parent->start_delay;
 128         td->timeout = parent->timeout;
 129         td->io_engine = parent->io_engine;
 130         td->create_file = parent->create_file;
 131         td->overwrite = parent->overwrite;
 132         td->invalidate_cache = parent->invalidate_cache;
 133         td->file_size = parent->file_size;
 134         td->file_offset = parent->file_offset;
 135         td->zone_size = parent->zone_size;
 136         td->zone_skip = parent->zone_skip;
 137         td->rate = parent->rate;
 138         td->ratemin = parent->ratemin;
 139         td->ratecycle = parent->ratecycle;
 140         td->iodepth = parent->iodepth;
 141         td->sync_io = parent->sync_io;
 142         td->mem_type = parent->mem_type;
 143         td->bw_avg_time = parent->bw_avg_time;
 144         td->create_serialize = parent->create_serialize;
 145         td->create_fsync = parent->create_fsync;
 146         td->loops = parent->loops;
 147         td->verify = parent->verify;
 148         td->stonewall = parent->stonewall;
 149         td->numjobs = parent->numjobs;
 150         td->use_thread = parent->use_thread;
 151         td->do_disk_util = parent->do_disk_util;
 152         memcpy(&td->cpumask, &parent->cpumask, sizeof(td->cpumask));
 153         strcpy(td->io_engine_name, parent->io_engine_name);
 154
 155         return td;
 156 }
 157
 158 static void put_job(struct thread_data *td)
 159 {
 160         memset(&threads[td->thread_number - 1], 0, sizeof(*td));
 161         thread_number--;
 162 }
 163
 164 static int add_job(struct thread_data *td, const char *jobname)
 165 {
 166         char *ddir_str[] = { "read", "write", "randread", "randwrite",
 167                              "rw", NULL, "randrw" };
 168         struct stat sb;
 169         int numjobs, ddir;
 170
 171 #ifndef FIO_HAVE_LIBAIO
 172         if (td->io_engine == FIO_LIBAIO) {
 173                 fprintf(stderr, "Linux libaio not available\n");
 174                 return 1;
 175         }
 176 #endif
 177 #ifndef FIO_HAVE_POSIXAIO
 178         if (td->io_engine == FIO_POSIXAIO) {
 179                 fprintf(stderr, "posix aio not available\n");
 180                 return 1;
 181         }
 182 #endif
 183
 184         /*
 185          * the def_thread is just for options, it's not a real job
 186          */
 187         if (td == &def_thread)
 188                 return 0;
 189
 190         if (td->io_engine & FIO_SYNCIO)
 191                 td->iodepth = 1;
 192         else {
 193                 if (!td->iodepth)
 194                         td->iodepth = 1;
 195         }
 196
 197         /*
 198          * only really works for sequential io for now
 199          */
 200         if (td->zone_size && !td->sequential)
 201                 td->zone_size = 0;
 202
 203         td->filetype = FIO_TYPE_FILE;
 204         if (!stat(jobname, &sb)) {
 205                 if (S_ISBLK(sb.st_mode))
 206                         td->filetype = FIO_TYPE_BD;
 207                 else if (S_ISCHR(sb.st_mode))
 208                         td->filetype = FIO_TYPE_CHAR;
 209         }
 210
 211         if (td->filetype == FIO_TYPE_FILE) {
 212                 if (td->directory[0] != '\0')
 213                         sprintf(td->file_name, "%s/%s.%d", td->directory, jobname, td->jobnum);
 214                 else
 215                         sprintf(td->file_name, "%s.%d", jobname, td->jobnum);
 216         } else
 217                 strncpy(td->file_name, jobname, sizeof(td->file_name) - 1);
 218
 219         sem_init(&td->mutex, 0, 0);
 220
 221         td->clat_stat[0].min_val = td->clat_stat[1].min_val = ULONG_MAX;
 222         td->slat_stat[0].min_val = td->slat_stat[1].min_val = ULONG_MAX;
 223         td->bw_stat[0].min_val = td->bw_stat[1].min_val = ULONG_MAX;
 224
 225         if (td->min_bs == -1U)
 226                 td->min_bs = td->bs;
 227         if (td->max_bs == -1U)
 228                 td->max_bs = td->bs;
 229         if (td_read(td) && !td_rw(td))
 230                 td->verify = 0;
 231
 232         if (td->stonewall && td->thread_number > 1)
 233                 groupid++;
 234
 235         td->groupid = groupid;
 236
 237         if (setup_rate(td))
 238                 goto err;
 239
 240         if (write_lat_log) {
 241                 setup_log(&td->slat_log);
 242                 setup_log(&td->clat_log);
 243         }
 244         if (write_bw_log)
 245                 setup_log(&td->bw_log);
 246
 247         ddir = td->ddir + (!td->sequential << 1) + (td->iomix << 2);
 248         printf("Client%d (g=%d): rw=%s, odir=%d, bs=%d-%d, rate=%d, ioengine=%s, iodepth=%d\n", td->thread_number, td->groupid, ddir_str[ddir], td->odirect, td->min_bs, td->max_bs, td->rate, td->io_engine_name, td->iodepth);
 249
 250         /*
 251          * recurse add identical jobs, clear numjobs and stonewall options
 252          * as they don't apply to sub-jobs
 253          */
 254         numjobs = td->numjobs;
 255         while (--numjobs) {
 256                 struct thread_data *td_new = get_new_job(0, td);
 257
 258                 if (!td_new)
 259                         goto err;
 260
 261                 td_new->numjobs = 1;
 262                 td_new->stonewall = 0;
 263                 td_new->jobnum = numjobs;
 264
 265                 if (add_job(td_new, jobname))
 266                         goto err;
 267         }
 268         return 0;
 269 err:
 270         put_job(td);
 271         return -1;
 272 }
 273
 274 int init_random_state(struct thread_data *td)
 275 {
 276         unsigned long seed;
 277         int fd, num_maps, blocks;
 278
 279         fd = open("/dev/random", O_RDONLY);
 280         if (fd == -1) {
 281                 td_verror(td, errno);
 282                 return 1;
 283         }
 284
 285         if (read(fd, &seed, sizeof(seed)) < (int) sizeof(seed)) {
 286                 td_verror(td, EIO);
 287                 close(fd);
 288                 return 1;
 289         }
 290
 291         close(fd);
 292
 293         srand48_r(seed, &td->bsrange_state);
 294         srand48_r(seed, &td->verify_state);
 295
 296         if (td->sequential)
 297                 return 0;
 298
 299         if (repeatable)
 300                 seed = DEF_RANDSEED;
 301
 302         blocks = (td->io_size + td->min_bs - 1) / td->min_bs;
 303         num_maps = blocks / BLOCKS_PER_MAP;
 304         td->file_map = malloc(num_maps * sizeof(long));
 305         td->num_maps = num_maps;
 306         memset(td->file_map, 0, num_maps * sizeof(long));
 307
 308         srand48_r(seed, &td->random_state);
 309         return 0;
 310 }
 311
 312 static void fill_cpu_mask(os_cpu_mask_t cpumask, int cpu)
 313 {
 314 #ifdef FIO_HAVE_CPU_AFFINITY
 315         unsigned int i;
 316
 317         CPU_ZERO(&cpumask);
 318
 319         for (i = 0; i < sizeof(int) * 8; i++) {
 320                 if ((1 << i) & cpu)
 321                         CPU_SET(i, &cpumask);
 322         }
 323 #endif
 324 }
 325
 326 static unsigned long get_mult(char c)
 327 {
 328         switch (c) {
 329                 case 'k':
 330                 case 'K':
 331                         return 1024;
 332                 case 'm':
 333                 case 'M':
 334                         return 1024 * 1024;
 335                 case 'g':
 336                 case 'G':
 337                         return 1024 * 1024 * 1024;
 338                 default:
 339                         return 1;
 340         }
 341 }
 342
 343 /*
 344  * convert string after '=' into decimal value, noting any size suffix
 345  */
 346 static int str_cnv(char *p, unsigned long long *val)
 347 {
 348         char *str;
 349         int len;
 350
 351         str = strchr(p, '=');
 352         if (!str)
 353                 return 1;
 354
 355         str++;
 356         len = strlen(str);
 357
 358         *val = strtoul(str, NULL, 10);
 359         if (*val == ULONG_MAX && errno == ERANGE)
 360                 return 1;
 361
 362         *val *= get_mult(str[len - 2]);
 363         return 0;
 364 }
 365
 366 static int check_strcnv(char *p, char *name, unsigned long long *val)
 367 {
 368         if (strncmp(p, name, strlen(name) - 1))
 369                 return 1;
 370
 371         return str_cnv(p, val);
 372 }
 373
 374 static void strip_blank_front(char **p)
 375 {
 376         char *s = *p;
 377
 378         while (isblank(*s))
 379                 s++;
 380 }
 381
 382 static void strip_blank_end(char *p)
 383 {
 384         while (isblank(*p)) {
 385                 *p = '\0';
 386                 p--;
 387         }
 388 }
 389
 390 static void terminate_line(char *p)
 391 {
 392         while (*p != '\n' && *p != '\0')
 393                 p++;
 394
 395         *p = '\0';
 396 }
 397
 398 typedef int (str_cb_fn)(struct thread_data *, char *);
 399
 400 static int check_str(char *p, char *name, str_cb_fn *cb, struct thread_data *td)
 401 {
 402         char *s = strstr(p, name);
 403
 404         if (!s)
 405                 return 1;
 406
 407         s = strchr(s, '=');
 408         if (!s)
 409                 return 1;
 410
 411         s++;
 412         strip_blank_front(&s);
 413         return cb(td, s);
 414 }
 415
 416 static int check_strstore(char *p, char *name, char *dest)
 417 {
 418         char *s = strstr(p, name);
 419
 420         if (!s)
 421                 return 1;
 422
 423         s = strchr(p, '=');
 424         if (!s)
 425                 return 1;
 426
 427         s++;
 428         strip_blank_front(&s);
 429
 430         strcpy(dest, s);
 431
 432         s = dest + strlen(dest) - 1;
 433         strip_blank_end(s);
 434         return 0;
 435 }
 436
 437 static int __check_range(char *str, unsigned long *val)
 438 {
 439         char suffix;
 440
 441         if (sscanf(str, "%lu%c", val, &suffix) == 2) {
 442                 *val *= get_mult(suffix);
 443                 return 0;
 444         }
 445
 446         if (sscanf(str, "%lu", val) == 1)
 447                 return 0;
 448
 449         return 1;
 450 }
 451
 452 static int check_range(char *p, char *name, unsigned long *s, unsigned long *e)
 453 {
 454         char option[128];
 455         char *str, *p1, *p2;
 456
 457         strcpy(option, p);
 458         p = option;
 459
 460         str = strstr(p, name);
 461         if (!str)
 462                 return 1;
 463
 464         p += strlen(name);
 465
 466         str = strchr(p, '=');
 467         if (!str)
 468                 return 1;
 469
 470         /*
 471          * 'p' now holds whatever is after the '=' sign
 472          */
 473         p1 = str + 1;
 474
 475         /*
 476          * terminate p1 at the '-' sign
 477          */
 478         p = strchr(p1, '-');
 479         if (!p)
 480                 return 1;
 481
 482         p2 = p + 1;
 483         *p = '\0';
 484
 485         if (!__check_range(p1, s) && !__check_range(p2, e))
 486                 return 0;
 487
 488         return 1;
 489 }
 490
 491 static int check_int(char *p, char *name, unsigned int *val)
 492 {
 493         char *str;
 494
 495         str = strstr(p, name);
 496         if (!str)
 497                 return 1;
 498
 499         str = strchr(p, '=');
 500         if (!str)
 501                 return 1;
 502
 503         str++;
 504
 505         if (sscanf(str, "%u", val) == 1)
 506                 return 0;
 507
 508         return 1;
 509 }
 510
 511 static int check_strset(char *p, char *name)
 512 {
 513         return strncmp(p, name, strlen(name));
 514 }
 515
 516 static int is_empty_or_comment(char *line)
 517 {
 518         unsigned int i;
 519
 520         for (i = 0; i < strlen(line); i++) {
 521                 if (line[i] == ';')
 522                         return 1;
 523                 if (!isspace(line[i]) && !iscntrl(line[i]))
 524                         return 0;
 525         }
 526
 527         return 1;
 528 }
 529
 530 static int str_rw_cb(struct thread_data *td, char *mem)
 531 {
 532         if (!strncmp(mem, "read", 4) || !strncmp(mem, "0", 1)) {
 533                 td->ddir = DDIR_READ;
 534                 td->sequential = 1;
 535                 return 0;
 536         } else if (!strncmp(mem, "randread", 8)) {
 537                 td->ddir = DDIR_READ;
 538                 td->sequential = 0;
 539                 return 0;
 540         } else if (!strncmp(mem, "write", 5) || !strncmp(mem, "1", 1)) {
 541                 td->ddir = DDIR_WRITE;
 542                 td->sequential = 1;
 543                 return 0;
 544         } else if (!strncmp(mem, "randwrite", 9)) {
 545                 td->ddir = DDIR_WRITE;
 546                 td->sequential = 0;
 547                 return 0;
 548         } else if (!strncmp(mem, "rw", 2)) {
 549                 td->ddir = 0;
 550                 td->iomix = 1;
 551                 td->sequential = 1;
 552                 return 0;
 553         } else if (!strncmp(mem, "randrw", 6)) {
 554                 td->ddir = 0;
 555                 td->iomix = 1;
 556                 td->sequential = 0;
 557                 return 0;
 558         }
 559
 560         fprintf(stderr, "bad data direction: %s\n", mem);
 561         return 1;
 562 }
 563
 564 static int str_verify_cb(struct thread_data *td, char *mem)
 565 {
 566         if (!strncmp(mem, "0", 1)) {
 567                 td->verify = VERIFY_NONE;
 568                 return 0;
 569         } else if (!strncmp(mem, "md5", 3) || !strncmp(mem, "1", 1)) {
 570                 td->verify = VERIFY_MD5;
 571                 return 0;
 572         } else if (!strncmp(mem, "crc32", 5)) {
 573                 td->verify = VERIFY_CRC32;
 574                 return 0;
 575         }
 576
 577         fprintf(stderr, "bad verify type: %s\n", mem);
 578         return 1;
 579 }
 580
 581 static int str_mem_cb(struct thread_data *td, char *mem)
 582 {
 583         if (!strncmp(mem, "malloc", 6)) {
 584                 td->mem_type = MEM_MALLOC;
 585                 return 0;
 586         } else if (!strncmp(mem, "shm", 3)) {
 587                 td->mem_type = MEM_SHM;
 588                 return 0;
 589         } else if (!strncmp(mem, "mmap", 4)) {
 590                 td->mem_type = MEM_MMAP;
 591                 return 0;
 592         }
 593
 594         fprintf(stderr, "bad mem type: %s\n", mem);
 595         return 1;
 596 }
 597
 598 static int str_ioengine_cb(struct thread_data *td, char *str)
 599 {
 600         if (!strncmp(str, "linuxaio", 8) || !strncmp(str, "aio", 3) ||
 601             !strncmp(str, "libaio", 6)) {
 602                 strcpy(td->io_engine_name, "libaio");
 603                 td->io_engine = FIO_LIBAIO;
 604                 return 0;
 605         } else if (!strncmp(str, "posixaio", 8)) {
 606                 strcpy(td->io_engine_name, "posixaio");
 607                 td->io_engine = FIO_POSIXAIO;
 608                 return 0;
 609         } else if (!strncmp(str, "sync", 4)) {
 610                 strcpy(td->io_engine_name, "sync");
 611                 td->io_engine = FIO_SYNCIO;
 612                 return 0;
 613         } else if (!strncmp(str, "mmap", 4)) {
 614                 strcpy(td->io_engine_name, "mmap");
 615                 td->io_engine = FIO_MMAPIO;
 616                 return 0;
 617         } else if (!strncmp(str, "sgio", 4)) {
 618                 strcpy(td->io_engine_name, "sgio");
 619                 td->io_engine = FIO_SGIO;
 620                 return 0;
 621         } else if (!strncmp(str, "splice", 6)) {
 622                 strcpy(td->io_engine_name, "splice");
 623                 td->io_engine = FIO_SPLICEIO;
 624                 return 0;
 625         }
 626
 627         fprintf(stderr, "bad ioengine type: %s\n", str);
 628         return 1;
 629 }
 630
 631 static int str_iolog_cb(struct thread_data *td, char *file)
 632 {
 633         terminate_line(file);
 634         strncpy(td->iolog_file, file, sizeof(td->iolog_file) - 1);
 635
 636         return 0;
 637 }
 638
 639 int parse_jobs_ini(char *file)
 640 {
 641         unsigned int prioclass, prio, cpu, global;
 642         unsigned long long ull;
 643         unsigned long ul1, ul2;
 644         struct thread_data *td;
 645         char *string, *name;
 646         fpos_t off;
 647         FILE *f;
 648         char *p;
 649
 650         f = fopen(file, "r");
 651         if (!f) {
 652                 perror("fopen job file");
 653                 return 1;
 654         }
 655
 656         string = malloc(4096);
 657         name = malloc(256);
 658
 659         while ((p = fgets(string, 4096, f)) != NULL) {
 660                 if (is_empty_or_comment(p))
 661                         continue;
 662                 if (sscanf(p, "[%s]", name) != 1)
 663                         continue;
 664
 665                 global = !strncmp(name, "global", 6);
 666
 667                 name[strlen(name) - 1] = '\0';
 668
 669                 td = get_new_job(global, &def_thread);
 670                 if (!td)
 671                         return 1;
 672
 673                 fgetpos(f, &off);
 674                 while ((p = fgets(string, 4096, f)) != NULL) {
 675                         if (is_empty_or_comment(p))
 676                                 continue;
 677                         if (strstr(p, "["))
 678                                 break;
 679
 680                         if (!check_int(p, "prio", &prio)) {
 681 #ifndef FIO_HAVE_IOPRIO
 682                                 fprintf(stderr, "io priorities not available\n");
 683                                 return 1;
 684 #endif
 685                                 td->ioprio |= prio;
 686                                 fgetpos(f, &off);
 687                                 continue;
 688                         }
 689                         if (!check_int(p, "prioclass", &prioclass)) {
 690 #ifndef FIO_HAVE_IOPRIO
 691                                 fprintf(stderr, "io priorities not available\n");
 692                                 return 1;
 693 #endif
 694                                 td->ioprio |= prioclass << IOPRIO_CLASS_SHIFT;
 695                                 fgetpos(f, &off);
 696                                 continue;
 697                         }
 698                         if (!check_int(p, "direct", &td->odirect)) {
 699                                 fgetpos(f, &off);
 700                                 continue;
 701                         }
 702                         if (!check_int(p, "rate", &td->rate)) {
 703                                 fgetpos(f, &off);
 704                                 continue;
 705                         }
 706                         if (!check_int(p, "ratemin", &td->ratemin)) {
 707                                 fgetpos(f, &off);
 708                                 continue;
 709                         }
 710                         if (!check_int(p, "ratecycle", &td->ratecycle)) {
 711                                 fgetpos(f, &off);
 712                                 continue;
 713                         }
 714                         if (!check_int(p, "thinktime", &td->thinktime)) {
 715                                 fgetpos(f, &off);
 716                                 continue;
 717                         }
 718                         if (!check_int(p, "cpumask", &cpu)) {
 719 #ifndef FIO_HAVE_CPU_AFFINITY
 720                                 fprintf(stderr, "cpu affinity not available\n");
 721                                 return 1;
 722 #endif
 723                                 fill_cpu_mask(td->cpumask, cpu);
 724                                 fgetpos(f, &off);
 725                                 continue;
 726                         }
 727                         if (!check_int(p, "fsync", &td->fsync_blocks)) {
 728                                 fgetpos(f, &off);
 729                                 td->end_fsync = 1;
 730                                 continue;
 731                         }
 732                         if (!check_int(p, "startdelay", &td->start_delay)) {
 733                                 fgetpos(f, &off);
 734                                 continue;
 735                         }
 736                         if (!check_int(p, "timeout", &td->timeout)) {
 737                                 fgetpos(f, &off);
 738                                 continue;
 739                         }
 740                         if (!check_int(p, "invalidate",&td->invalidate_cache)) {
 741                                 fgetpos(f, &off);
 742                                 continue;
 743                         }
 744                         if (!check_int(p, "iodepth", &td->iodepth)) {
 745                                 fgetpos(f, &off);
 746                                 continue;
 747                         }
 748                         if (!check_int(p, "sync", &td->sync_io)) {
 749                                 fgetpos(f, &off);
 750                                 continue;
 751                         }
 752                         if (!check_int(p, "bwavgtime", &td->bw_avg_time)) {
 753                                 fgetpos(f, &off);
 754                                 continue;
 755                         }
 756                         if (!check_int(p, "create_serialize", &td->create_serialize)) {
 757                                 fgetpos(f, &off);
 758                                 continue;
 759                         }
 760                         if (!check_int(p, "create_fsync", &td->create_fsync)) {
 761                                 fgetpos(f, &off);
 762                                 continue;
 763                         }
 764                         if (!check_int(p, "end_fsync", &td->end_fsync)) {
 765                                 fgetpos(f, &off);
 766                                 continue;
 767                         }
 768                         if (!check_int(p, "loops", &td->loops)) {
 769                                 fgetpos(f, &off);
 770                                 continue;
 771                         }
 772                         if (!check_int(p, "numjobs", &td->numjobs)) {
 773                                 fgetpos(f, &off);
 774                                 continue;
 775                         }
 776                         if (!check_int(p, "overwrite", &td->overwrite)) {
 777                                 fgetpos(f, &off);
 778                                 continue;
 779                         }
 780                         if (!check_range(p, "bsrange", &ul1, &ul2)) {
 781                                 if (ul1 > ul2) {
 782                                         td->max_bs = ul1;
 783                                         td->min_bs = ul2;
 784                                 } else {
 785                                         td->max_bs = ul2;
 786                                         td->min_bs = ul1;
 787                                 }
 788                                 fgetpos(f, &off);
 789                                 continue;
 790                         }
 791                         if (!check_strcnv(p, "bs", &ull)) {
 792                                 td->bs = ull;
 793                                 fgetpos(f, &off);
 794                                 continue;
 795                         }
 796                         if (!check_strcnv(p, "size", &td->file_size)) {
 797                                 fgetpos(f, &off);
 798                                 continue;
 799                         }
 800                         if (!check_strcnv(p, "offset", &td->file_offset)) {
 801                                 fgetpos(f, &off);
 802                                 continue;
 803                         }
 804                         if (!check_strcnv(p, "zonesize", &td->zone_size)) {
 805                                 fgetpos(f, &off);
 806                                 continue;
 807                         }
 808                         if (!check_strcnv(p, "zoneskip", &td->zone_skip)) {
 809                                 fgetpos(f, &off);
 810                                 continue;
 811                         }
 812                         if (!check_strstore(p, "directory", td->directory)) {
 813                                 fgetpos(f, &off);
 814                                 continue;
 815                         }
 816                         if (!check_str(p, "mem", str_mem_cb, td)) {
 817                                 fgetpos(f, &off);
 818                                 continue;
 819                         }
 820                         if (!check_str(p, "verify", str_verify_cb, td)) {
 821                                 fgetpos(f, &off);
 822                                 continue;
 823                         }
 824                         if (!check_str(p, "rw", str_rw_cb, td)) {
 825                                 fgetpos(f, &off);
 826                                 continue;
 827                         }
 828                         if (!check_str(p, "ioengine", str_ioengine_cb, td)) {
 829                                 fgetpos(f, &off);
 830                                 continue;
 831                         }
 832                         if (!check_strset(p, "create")) {
 833                                 td->create_file = 1;
 834                                 fgetpos(f, &off);
 835                                 continue;
 836                         }
 837                         if (!check_strset(p, "exitall")) {
 838                                 exitall_on_terminate = 1;
 839                                 fgetpos(f, &off);
 840                                 continue;
 841                         }
 842                         if (!check_strset(p, "stonewall")) {
 843                                 td->stonewall = 1;
 844                                 fgetpos(f, &off);
 845                                 continue;
 846                         }
 847                         if (!check_strset(p, "thread")) {
 848                                 td->use_thread = 1;
 849                                 fgetpos(f, &off);
 850                                 continue;
 851                         }
 852                         if (!check_str(p, "iolog", str_iolog_cb, td)) {
 853                                 td->iolog = 1;
 854                                 fgetpos(f, &off);
 855                                 continue;
 856                         }
 857
 858                         printf("Client%d: bad option %s\n",td->thread_number,p);
 859                         return 1;
 860                 }
 861                 fsetpos(f, &off);
 862
 863                 if (add_job(td, name))
 864                         return 1;
 865         }
 866
 867         free(string);
 868         free(name);
 869         fclose(f);
 870         return 0;
 871 }
 872
 873 static int fill_def_thread(void)
 874 {
 875         memset(&def_thread, 0, sizeof(def_thread));
 876
 877         if (fio_getaffinity(getpid(), &def_thread.cpumask) == -1) {
 878                 perror("sched_getaffinity");
 879                 return 1;
 880         }
 881
 882         /*
 883          * fill globals
 884          */
 885         def_thread.ddir = DDIR_READ;
 886         def_thread.iomix = 0;
 887         def_thread.bs = DEF_BS;
 888         def_thread.min_bs = -1;
 889         def_thread.max_bs = -1;
 890         def_thread.io_engine = DEF_IO_ENGINE;
 891         strcpy(def_thread.io_engine_name, DEF_IO_ENGINE_NAME);
 892         def_thread.odirect = DEF_ODIRECT;
 893         def_thread.ratecycle = DEF_RATE_CYCLE;
 894         def_thread.sequential = DEF_SEQUENTIAL;
 895         def_thread.timeout = DEF_TIMEOUT;
 896         def_thread.create_file = DEF_CREATE;
 897         def_thread.overwrite = DEF_OVERWRITE;
 898         def_thread.invalidate_cache = DEF_INVALIDATE;
 899         def_thread.sync_io = DEF_SYNCIO;
 900         def_thread.mem_type = MEM_MALLOC;
 901         def_thread.bw_avg_time = DEF_BWAVGTIME;
 902         def_thread.create_serialize = DEF_CREATE_SER;
 903         def_thread.create_fsync = DEF_CREATE_FSYNC;
 904         def_thread.loops = DEF_LOOPS;
 905         def_thread.verify = DEF_VERIFY;
 906         def_thread.stonewall = DEF_STONEWALL;
 907         def_thread.numjobs = DEF_NUMJOBS;
 908         def_thread.use_thread = DEF_USE_THREAD;
 909 #ifdef FIO_HAVE_DISK_UTIL
 910         def_thread.do_disk_util = 1;
 911 #endif
 912
 913         return 0;
 914 }
 915
 916 static void usage(char *name)
 917 {
 918         printf("%s\n", fio_version_string);
 919         printf("\t-s IO is sequential\n");
 920         printf("\t-b Block size in KiB for each IO\n");
 921         printf("\t-t Runtime in seconds\n");
 922         printf("\t-R Exit all threads on failure to meet rate goal\n");
 923         printf("\t-o Use O_DIRECT\n");
 924         printf("\t-l Generate per-job latency logs\n");
 925         printf("\t-w Generate per-job bandwidth logs\n");
 926         printf("\t-f Job file (Required)\n");
 927         printf("\t-v Print version info and exit\n");
 928 }
 929
 930 static void parse_cmd_line(int argc, char *argv[])
 931 {
 932         int c;
 933
 934         while ((c = getopt(argc, argv, "s:b:t:r:R:o:f:lwvh")) != EOF) {
 935                 switch (c) {
 936                         case 's':
 937                                 def_thread.sequential = !!atoi(optarg);
 938                                 break;
 939                         case 'b':
 940                                 def_thread.bs = atoi(optarg);
 941                                 def_thread.bs <<= 10;
 942                                 if (!def_thread.bs) {
 943                                         printf("bad block size\n");
 944                                         def_thread.bs = DEF_BS;
 945                                 }
 946                                 break;
 947                         case 't':
 948                                 def_thread.timeout = atoi(optarg);
 949                                 break;
 950                         case 'r':
 951                                 repeatable = !!atoi(optarg);
 952                                 break;
 953                         case 'R':
 954                                 rate_quit = !!atoi(optarg);
 955                                 break;
 956                         case 'o':
 957                                 def_thread.odirect = !!atoi(optarg);
 958                                 break;
 959                         case 'f':
 960                                 ini_file = strdup(optarg);
 961                                 break;
 962                         case 'l':
 963                                 write_lat_log = 1;
 964                                 break;
 965                         case 'w':
 966                                 write_bw_log = 1;
 967                                 break;
 968                         case 'h':
 969                                 usage(argv[0]);
 970                                 exit(0);
 971                         case 'v':
 972                                 printf("%s\n", fio_version_string);
 973                                 exit(0);
 974                 }
 975         }
 976
 977         if (!ini_file && argc > 1 && argv[argc - 1][0] != '-')
 978                 ini_file = strdup(argv[argc - 1]);
 979 }
 980
 981 static void free_shm(void)
 982 {
 983         struct shmid_ds sbuf;
 984
 985         if (threads) {
 986                 shmdt(threads);
 987                 threads = NULL;
 988                 shmctl(shm_id, IPC_RMID, &sbuf);
 989         }
 990 }
 991
 992 static int setup_thread_area(void)
 993 {
 994         /*
 995          * 1024 is too much on some machines, scale max_jobs if
 996          * we get a failure that looks like too large a shm segment
 997          */
 998         do {
 999                 int s = max_jobs * sizeof(struct thread_data);
1000
1001                 shm_id = shmget(0, s, IPC_CREAT | 0600);
1002                 if (shm_id != -1)
1003                         break;
1004                 if (errno != EINVAL) {
1005                         perror("shmget");
1006                         break;
1007                 }
1008
1009                 max_jobs >>= 1;
1010         } while (max_jobs);
1011
1012         if (shm_id == -1)
1013                 return 1;
1014
1015         threads = shmat(shm_id, NULL, 0);
1016         if (threads == (void *) -1) {
1017                 perror("shmat");
1018                 return 1;
1019         }
1020
1021         atexit(free_shm);
1022         return 0;
1023 }
1024
1025 int parse_options(int argc, char *argv[])
1026 {
1027         if (setup_thread_area())
1028                 return 1;
1029         if (fill_def_thread())
1030                 return 1;
1031
1032         parse_cmd_line(argc, argv);
1033
1034         if (!ini_file) {
1035                 printf("Need job file\n");
1036                 usage(argv[0]);
1037                 return 1;
1038         }
1039
1040         if (parse_jobs_ini(ini_file)) {
1041                 usage(argv[0]);
1042                 return 1;
1043         }
1044
1045         return 0;
1046 }