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