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 1.1";
  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[128];
  85         FILE *f;
  86         unsigned int i;
  87
  88         sprintf(file_name, "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, int prioclass,
 165                    int prio)
 166 {
 167         char *ddir_str[] = { "read", "write", "randread", "randwrite" };
 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 #ifdef FIO_HAVE_IOPRIO
 184         td->ioprio = (prioclass << IOPRIO_CLASS_SHIFT) | prio;
 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) && S_ISBLK(sb.st_mode))
 208                 td->filetype = FIO_TYPE_BD;
 209
 210         if (td->filetype == FIO_TYPE_FILE) {
 211                 if (td->directory[0] != '\0')
 212                         sprintf(td->file_name, "%s/%s.%d", td->directory, jobname, td->thread_number);
 213                 else
 214                         sprintf(td->file_name, "%s.%d", jobname, td->thread_number);
 215         } else
 216                 strcpy(td->file_name, jobname);
 217
 218         sem_init(&td->mutex, 0, 0);
 219
 220         td->clat_stat[0].min_val = td->clat_stat[1].min_val = ULONG_MAX;
 221         td->slat_stat[0].min_val = td->slat_stat[1].min_val = ULONG_MAX;
 222         td->bw_stat[0].min_val = td->bw_stat[1].min_val = ULONG_MAX;
 223
 224         if (td->min_bs == -1U)
 225                 td->min_bs = td->bs;
 226         if (td->max_bs == -1U)
 227                 td->max_bs = td->bs;
 228         if (td_read(td))
 229                 td->verify = 0;
 230
 231         if (td->stonewall && td->thread_number > 1)
 232                 groupid++;
 233
 234         td->groupid = groupid;
 235
 236         if (setup_rate(td))
 237                 goto err;
 238
 239         if (write_lat_log) {
 240                 setup_log(&td->slat_log);
 241                 setup_log(&td->clat_log);
 242         }
 243         if (write_bw_log)
 244                 setup_log(&td->bw_log);
 245
 246         ddir = td->ddir + (!td->sequential << 1);
 247         printf("Client%d (g=%d): rw=%s, prio=%d/%d, odir=%d, bs=%d-%d, rate=%d, ioengine=%s, iodepth=%d\n", td->thread_number, td->groupid, ddir_str[ddir], prioclass, prio, td->odirect, td->min_bs, td->max_bs, td->rate, td->io_engine_name, td->iodepth);
 248
 249         /*
 250          * recurse add identical jobs, clear numjobs and stonewall options
 251          * as they don't apply to sub-jobs
 252          */
 253         numjobs = td->numjobs;
 254         while (--numjobs) {
 255                 struct thread_data *td_new = get_new_job(0, td);
 256
 257                 if (!td_new)
 258                         goto err;
 259
 260                 td_new->numjobs = 1;
 261                 td_new->stonewall = 0;
 262
 263                 if (add_job(td_new, jobname, prioclass, prio))
 264                         goto err;
 265         }
 266         return 0;
 267 err:
 268         put_job(td);
 269         return -1;
 270 }
 271
 272 int init_random_state(struct thread_data *td)
 273 {
 274         unsigned long seed;
 275         int fd, num_maps, blocks;
 276
 277         fd = open("/dev/random", O_RDONLY);
 278         if (fd == -1) {
 279                 td_verror(td, errno);
 280                 return 1;
 281         }
 282
 283         if (read(fd, &seed, sizeof(seed)) < (int) sizeof(seed)) {
 284                 td_verror(td, EIO);
 285                 close(fd);
 286                 return 1;
 287         }
 288
 289         close(fd);
 290
 291         srand48_r(seed, &td->bsrange_state);
 292         srand48_r(seed, &td->verify_state);
 293
 294         if (td->sequential)
 295                 return 0;
 296
 297         if (repeatable)
 298                 seed = DEF_RANDSEED;
 299
 300         blocks = (td->io_size + td->min_bs - 1) / td->min_bs;
 301         num_maps = blocks / BLOCKS_PER_MAP;
 302         td->file_map = malloc(num_maps * sizeof(long));
 303         td->num_maps = num_maps;
 304         memset(td->file_map, 0, num_maps * sizeof(long));
 305
 306         srand48_r(seed, &td->random_state);
 307         return 0;
 308 }
 309
 310 static void fill_cpu_mask(os_cpu_mask_t cpumask, int cpu)
 311 {
 312 #ifdef FIO_HAVE_CPU_AFFINITY
 313         unsigned int i;
 314
 315         CPU_ZERO(&cpumask);
 316
 317         for (i = 0; i < sizeof(int) * 8; i++) {
 318                 if ((1 << i) & cpu)
 319                         CPU_SET(i, &cpumask);
 320         }
 321 #endif
 322 }
 323
 324 static unsigned long get_mult(char c)
 325 {
 326         switch (c) {
 327                 case 'k':
 328                 case 'K':
 329                         return 1024;
 330                 case 'm':
 331                 case 'M':
 332                         return 1024 * 1024;
 333                 case 'g':
 334                 case 'G':
 335                         return 1024 * 1024 * 1024;
 336                 default:
 337                         return 1;
 338         }
 339 }
 340
 341 /*
 342  * convert string after '=' into decimal value, noting any size suffix
 343  */
 344 static int str_cnv(char *p, unsigned long long *val)
 345 {
 346         char *str;
 347         int len;
 348
 349         str = strchr(p, '=');
 350         if (!str)
 351                 return 1;
 352
 353         str++;
 354         len = strlen(str);
 355
 356         *val = strtoul(str, NULL, 10);
 357         if (*val == ULONG_MAX && errno == ERANGE)
 358                 return 1;
 359
 360         *val *= get_mult(str[len - 2]);
 361         return 0;
 362 }
 363
 364 static int check_strcnv(char *p, char *name, unsigned long long *val)
 365 {
 366         if (strncmp(p, name, strlen(name) - 1))
 367                 return 1;
 368
 369         return str_cnv(p, val);
 370 }
 371
 372 static void strip_blank_front(char **p)
 373 {
 374         char *s = *p;
 375
 376         while (isblank(*s))
 377                 s++;
 378 }
 379
 380 static void strip_blank_end(char *p)
 381 {
 382         while (isblank(*p)) {
 383                 *p = '\0';
 384                 p--;
 385         }
 386 }
 387
 388 typedef int (str_cb_fn)(struct thread_data *, char *);
 389
 390 static int check_str(char *p, char *name, str_cb_fn *cb, struct thread_data *td)
 391 {
 392         char *s = strstr(p, name);
 393
 394         if (!s)
 395                 return 1;
 396
 397         s = strchr(s, '=');
 398         if (!s)
 399                 return 1;
 400
 401         s++;
 402         strip_blank_front(&s);
 403         return cb(td, s);
 404 }
 405
 406 static int check_strstore(char *p, char *name, char *dest)
 407 {
 408         char *s = strstr(p, name);
 409
 410         if (!s)
 411                 return 1;
 412
 413         s = strchr(p, '=');
 414         if (!s)
 415                 return 1;
 416
 417         s++;
 418         strip_blank_front(&s);
 419
 420         strcpy(dest, s);
 421
 422         s = dest + strlen(dest) - 1;
 423         strip_blank_end(s);
 424         return 0;
 425 }
 426
 427 static int __check_range(char *str, unsigned long *val)
 428 {
 429         char suffix;
 430
 431         if (sscanf(str, "%lu%c", val, &suffix) == 2) {
 432                 *val *= get_mult(suffix);
 433                 return 0;
 434         }
 435
 436         if (sscanf(str, "%lu", val) == 1)
 437                 return 0;
 438
 439         return 1;
 440 }
 441
 442 static int check_range(char *p, char *name, unsigned long *s, unsigned long *e)
 443 {
 444         char option[128];
 445         char *str, *p1, *p2;
 446
 447         strcpy(option, p);
 448         p = option;
 449
 450         str = strstr(p, name);
 451         if (!str)
 452                 return 1;
 453
 454         p += strlen(name);
 455
 456         str = strchr(p, '=');
 457         if (!str)
 458                 return 1;
 459
 460         /*
 461          * 'p' now holds whatever is after the '=' sign
 462          */
 463         p1 = str + 1;
 464
 465         /*
 466          * terminate p1 at the '-' sign
 467          */
 468         p = strchr(p1, '-');
 469         if (!p)
 470                 return 1;
 471
 472         p2 = p + 1;
 473         *p = '\0';
 474
 475         if (!__check_range(p1, s) && !__check_range(p2, e))
 476                 return 0;
 477
 478         return 1;
 479 }
 480
 481 static int check_int(char *p, char *name, unsigned int *val)
 482 {
 483         char *str;
 484
 485         str = strstr(p, name);
 486         if (!str)
 487                 return 1;
 488
 489         str = strchr(p, '=');
 490         if (!str)
 491                 return 1;
 492
 493         str++;
 494
 495         if (sscanf(str, "%u", val) == 1)
 496                 return 0;
 497
 498         return 1;
 499 }
 500
 501 static int check_strset(char *p, char *name)
 502 {
 503         return strncmp(p, name, strlen(name));
 504 }
 505
 506 static int is_empty_or_comment(char *line)
 507 {
 508         unsigned int i;
 509
 510         for (i = 0; i < strlen(line); i++) {
 511                 if (line[i] == ';')
 512                         return 1;
 513                 if (!isspace(line[i]) && !iscntrl(line[i]))
 514                         return 0;
 515         }
 516
 517         return 1;
 518 }
 519
 520 static int str_rw_cb(struct thread_data *td, char *mem)
 521 {
 522         if (!strncmp(mem, "read", 4) || !strncmp(mem, "0", 1)) {
 523                 td->ddir = DDIR_READ;
 524                 td->sequential = 1;
 525                 return 0;
 526         } else if (!strncmp(mem, "randread", 8)) {
 527                 td->ddir = DDIR_READ;
 528                 td->sequential = 0;
 529                 return 0;
 530         } else if (!strncmp(mem, "write", 5) || !strncmp(mem, "1", 1)) {
 531                 td->ddir = DDIR_WRITE;
 532                 td->sequential = 1;
 533                 return 0;
 534         } else if (!strncmp(mem, "randwrite", 9)) {
 535                 td->ddir = DDIR_WRITE;
 536                 td->sequential = 0;
 537                 return 0;
 538         }
 539
 540         fprintf(stderr, "bad data direction: %s\n", mem);
 541         return 1;
 542 }
 543
 544 static int str_verify_cb(struct thread_data *td, char *mem)
 545 {
 546         if (!strncmp(mem, "0", 1)) {
 547                 td->verify = VERIFY_NONE;
 548                 return 0;
 549         } else if (!strncmp(mem, "md5", 3) || !strncmp(mem, "1", 1)) {
 550                 td->verify = VERIFY_MD5;
 551                 return 0;
 552         } else if (!strncmp(mem, "crc32", 5)) {
 553                 td->verify = VERIFY_CRC32;
 554                 return 0;
 555         }
 556
 557         fprintf(stderr, "bad verify type: %s\n", mem);
 558         return 1;
 559 }
 560
 561 static int str_mem_cb(struct thread_data *td, char *mem)
 562 {
 563         if (!strncmp(mem, "malloc", 6)) {
 564                 td->mem_type = MEM_MALLOC;
 565                 return 0;
 566         } else if (!strncmp(mem, "shm", 3)) {
 567                 td->mem_type = MEM_SHM;
 568                 return 0;
 569         } else if (!strncmp(mem, "mmap", 4)) {
 570                 td->mem_type = MEM_MMAP;
 571                 return 0;
 572         }
 573
 574         fprintf(stderr, "bad mem type: %s\n", mem);
 575         return 1;
 576 }
 577
 578 static int str_ioengine_cb(struct thread_data *td, char *str)
 579 {
 580         if (!strncmp(str, "linuxaio", 8) || !strncmp(str, "aio", 3) ||
 581             !strncmp(str, "libaio", 6)) {
 582                 strcpy(td->io_engine_name, "libaio");
 583                 td->io_engine = FIO_LIBAIO;
 584                 return 0;
 585         } else if (!strncmp(str, "posixaio", 8)) {
 586                 strcpy(td->io_engine_name, "posixaio");
 587                 td->io_engine = FIO_POSIXAIO;
 588                 return 0;
 589         } else if (!strncmp(str, "sync", 4)) {
 590                 strcpy(td->io_engine_name, "sync");
 591                 td->io_engine = FIO_SYNCIO;
 592                 return 0;
 593         } else if (!strncmp(str, "mmap", 4)) {
 594                 strcpy(td->io_engine_name, "mmap");
 595                 td->io_engine = FIO_MMAPIO;
 596                 return 0;
 597         } else if (!strncmp(str, "sgio", 4)) {
 598                 strcpy(td->io_engine_name, "sgio");
 599                 td->io_engine = FIO_SGIO;
 600                 return 0;
 601         }
 602
 603         fprintf(stderr, "bad ioengine type: %s\n", str);
 604         return 1;
 605 }
 606
 607
 608 int parse_jobs_ini(char *file)
 609 {
 610         unsigned int prioclass, prio, cpu, global;
 611         unsigned long long ull;
 612         unsigned long ul1, ul2;
 613         struct thread_data *td;
 614         char *string, *name;
 615         fpos_t off;
 616         FILE *f;
 617         char *p;
 618
 619         f = fopen(file, "r");
 620         if (!f) {
 621                 perror("fopen");
 622                 return 1;
 623         }
 624
 625         string = malloc(4096);
 626         name = malloc(256);
 627
 628         while ((p = fgets(string, 4096, f)) != NULL) {
 629                 if (is_empty_or_comment(p))
 630                         continue;
 631                 if (sscanf(p, "[%s]", name) != 1)
 632                         continue;
 633
 634                 global = !strncmp(name, "global", 6);
 635
 636                 name[strlen(name) - 1] = '\0';
 637
 638                 td = get_new_job(global, &def_thread);
 639                 if (!td)
 640                         return 1;
 641
 642                 prioclass = 2;
 643                 prio = 4;
 644
 645                 fgetpos(f, &off);
 646                 while ((p = fgets(string, 4096, f)) != NULL) {
 647                         if (is_empty_or_comment(p))
 648                                 continue;
 649                         if (strstr(p, "["))
 650                                 break;
 651                         if (!check_int(p, "prio", &prio)) {
 652 #ifndef FIO_HAVE_IOPRIO
 653                                 fprintf(stderr, "io priorities not available\n");
 654                                 return 1;
 655 #endif
 656                                 fgetpos(f, &off);
 657                                 continue;
 658                         }
 659                         if (!check_int(p, "prioclass", &prioclass)) {
 660 #ifndef FIO_HAVE_IOPRIO
 661                                 fprintf(stderr, "io priorities not available\n");
 662                                 return 1;
 663 #endif
 664                                 fgetpos(f, &off);
 665                                 continue;
 666                         }
 667                         if (!check_int(p, "direct", &td->odirect)) {
 668                                 fgetpos(f, &off);
 669                                 continue;
 670                         }
 671                         if (!check_int(p, "rate", &td->rate)) {
 672                                 fgetpos(f, &off);
 673                                 continue;
 674                         }
 675                         if (!check_int(p, "ratemin", &td->ratemin)) {
 676                                 fgetpos(f, &off);
 677                                 continue;
 678                         }
 679                         if (!check_int(p, "ratecycle", &td->ratecycle)) {
 680                                 fgetpos(f, &off);
 681                                 continue;
 682                         }
 683                         if (!check_int(p, "thinktime", &td->thinktime)) {
 684                                 fgetpos(f, &off);
 685                                 continue;
 686                         }
 687                         if (!check_int(p, "cpumask", &cpu)) {
 688 #ifndef FIO_HAVE_CPU_AFFINITY
 689                                 fprintf(stderr, "cpu affinity not available\n");
 690                                 return 1;
 691 #endif
 692                                 fill_cpu_mask(td->cpumask, cpu);
 693                                 fgetpos(f, &off);
 694                                 continue;
 695                         }
 696                         if (!check_int(p, "fsync", &td->fsync_blocks)) {
 697                                 fgetpos(f, &off);
 698                                 continue;
 699                         }
 700                         if (!check_int(p, "startdelay", &td->start_delay)) {
 701                                 fgetpos(f, &off);
 702                                 continue;
 703                         }
 704                         if (!check_int(p, "timeout", &td->timeout)) {
 705                                 fgetpos(f, &off);
 706                                 continue;
 707                         }
 708                         if (!check_int(p, "invalidate",&td->invalidate_cache)) {
 709                                 fgetpos(f, &off);
 710                                 continue;
 711                         }
 712                         if (!check_int(p, "iodepth", &td->iodepth)) {
 713                                 fgetpos(f, &off);
 714                                 continue;
 715                         }
 716                         if (!check_int(p, "sync", &td->sync_io)) {
 717                                 fgetpos(f, &off);
 718                                 continue;
 719                         }
 720                         if (!check_int(p, "bwavgtime", &td->bw_avg_time)) {
 721                                 fgetpos(f, &off);
 722                                 continue;
 723                         }
 724                         if (!check_int(p, "create_serialize", &td->create_serialize)) {
 725                                 fgetpos(f, &off);
 726                                 continue;
 727                         }
 728                         if (!check_int(p, "create_fsync", &td->create_fsync)) {
 729                                 fgetpos(f, &off);
 730                                 continue;
 731                         }
 732                         if (!check_int(p, "loops", &td->loops)) {
 733                                 fgetpos(f, &off);
 734                                 continue;
 735                         }
 736                         if (!check_int(p, "numjobs", &td->numjobs)) {
 737                                 fgetpos(f, &off);
 738                                 continue;
 739                         }
 740                         if (!check_int(p, "overwrite", &td->overwrite)) {
 741                                 fgetpos(f, &off);
 742                                 continue;
 743                         }
 744                         if (!check_range(p, "bsrange", &ul1, &ul2)) {
 745                                 if (ul1 > ul2) {
 746                                         td->max_bs = ul1;
 747                                         td->min_bs = ul2;
 748                                 } else {
 749                                         td->max_bs = ul2;
 750                                         td->min_bs = ul1;
 751                                 }
 752                                 fgetpos(f, &off);
 753                                 continue;
 754                         }
 755                         if (!check_strcnv(p, "bs", &ull)) {
 756                                 td->bs = ull;
 757                                 fgetpos(f, &off);
 758                                 continue;
 759                         }
 760                         if (!check_strcnv(p, "size", &td->file_size)) {
 761                                 fgetpos(f, &off);
 762                                 continue;
 763                         }
 764                         if (!check_strcnv(p, "offset", &td->file_offset)) {
 765                                 fgetpos(f, &off);
 766                                 continue;
 767                         }
 768                         if (!check_strcnv(p, "zonesize", &td->zone_size)) {
 769                                 fgetpos(f, &off);
 770                                 continue;
 771                         }
 772                         if (!check_strcnv(p, "zoneskip", &td->zone_skip)) {
 773                                 fgetpos(f, &off);
 774                                 continue;
 775                         }
 776                         if (!check_strstore(p, "directory", td->directory)) {
 777                                 fgetpos(f, &off);
 778                                 continue;
 779                         }
 780                         if (!check_str(p, "mem", str_mem_cb, td)) {
 781                                 fgetpos(f, &off);
 782                                 continue;
 783                         }
 784                         if (!check_str(p, "verify", str_verify_cb, td)) {
 785                                 fgetpos(f, &off);
 786                                 continue;
 787                         }
 788                         if (!check_str(p, "rw", str_rw_cb, td)) {
 789                                 fgetpos(f, &off);
 790                                 continue;
 791                         }
 792                         if (!check_str(p, "ioengine", str_ioengine_cb, td)) {
 793                                 fgetpos(f, &off);
 794                                 continue;
 795                         }
 796                         if (!check_strset(p, "create")) {
 797                                 td->create_file = 1;
 798                                 fgetpos(f, &off);
 799                                 continue;
 800                         }
 801                         if (!check_strset(p, "exitall")) {
 802                                 exitall_on_terminate = 1;
 803                                 fgetpos(f, &off);
 804                                 continue;
 805                         }
 806                         if (!check_strset(p, "stonewall")) {
 807                                 td->stonewall = 1;
 808                                 fgetpos(f, &off);
 809                                 continue;
 810                         }
 811                         if (!check_strset(p, "thread")) {
 812                                 td->use_thread = 1;
 813                                 fgetpos(f, &off);
 814                                 continue;
 815                         }
 816
 817                         printf("Client%d: bad option %s\n",td->thread_number,p);
 818                 }
 819                 fsetpos(f, &off);
 820
 821                 if (add_job(td, name, prioclass, prio))
 822                         return 1;
 823         }
 824
 825         free(string);
 826         free(name);
 827         fclose(f);
 828         return 0;
 829 }
 830
 831 static int fill_def_thread(void)
 832 {
 833         memset(&def_thread, 0, sizeof(def_thread));
 834
 835         if (fio_getaffinity(getpid(), &def_thread.cpumask) == -1) {
 836                 perror("sched_getaffinity");
 837                 return 1;
 838         }
 839
 840         /*
 841          * fill globals
 842          */
 843         def_thread.ddir = DDIR_READ;
 844         def_thread.bs = DEF_BS;
 845         def_thread.min_bs = -1;
 846         def_thread.max_bs = -1;
 847         def_thread.io_engine = DEF_IO_ENGINE;
 848         strcpy(def_thread.io_engine_name, DEF_IO_ENGINE_NAME);
 849         def_thread.odirect = DEF_ODIRECT;
 850         def_thread.ratecycle = DEF_RATE_CYCLE;
 851         def_thread.sequential = DEF_SEQUENTIAL;
 852         def_thread.timeout = DEF_TIMEOUT;
 853         def_thread.create_file = DEF_CREATE;
 854         def_thread.overwrite = DEF_OVERWRITE;
 855         def_thread.invalidate_cache = DEF_INVALIDATE;
 856         def_thread.sync_io = DEF_SYNCIO;
 857         def_thread.mem_type = MEM_MALLOC;
 858         def_thread.bw_avg_time = DEF_BWAVGTIME;
 859         def_thread.create_serialize = DEF_CREATE_SER;
 860         def_thread.create_fsync = DEF_CREATE_FSYNC;
 861         def_thread.loops = DEF_LOOPS;
 862         def_thread.verify = DEF_VERIFY;
 863         def_thread.stonewall = DEF_STONEWALL;
 864         def_thread.numjobs = DEF_NUMJOBS;
 865         def_thread.use_thread = DEF_USE_THREAD;
 866 #ifdef FIO_HAVE_DISK_UTIL
 867         def_thread.do_disk_util = 1;
 868 #endif
 869
 870         return 0;
 871 }
 872
 873 static void parse_cmd_line(int argc, char *argv[])
 874 {
 875         int c;
 876
 877         while ((c = getopt(argc, argv, "s:b:t:r:R:o:f:lwv")) != EOF) {
 878                 switch (c) {
 879                         case 's':
 880                                 def_thread.sequential = !!atoi(optarg);
 881                                 break;
 882                         case 'b':
 883                                 def_thread.bs = atoi(optarg);
 884                                 def_thread.bs <<= 10;
 885                                 if (!def_thread.bs) {
 886                                         printf("bad block size\n");
 887                                         def_thread.bs = DEF_BS;
 888                                 }
 889                                 break;
 890                         case 't':
 891                                 def_thread.timeout = atoi(optarg);
 892                                 break;
 893                         case 'r':
 894                                 repeatable = !!atoi(optarg);
 895                                 break;
 896                         case 'R':
 897                                 rate_quit = !!atoi(optarg);
 898                                 break;
 899                         case 'o':
 900                                 def_thread.odirect = !!atoi(optarg);
 901                                 break;
 902                         case 'f':
 903                                 ini_file = strdup(optarg);
 904                                 break;
 905                         case 'l':
 906                                 write_lat_log = 1;
 907                                 break;
 908                         case 'w':
 909                                 write_bw_log = 1;
 910                                 break;
 911                         case 'v':
 912                                 printf("%s\n", fio_version_string);
 913                                 exit(0);
 914                 }
 915         }
 916 }
 917
 918 static void free_shm(void)
 919 {
 920         struct shmid_ds sbuf;
 921
 922         if (threads) {
 923                 shmdt(threads);
 924                 threads = NULL;
 925                 shmctl(shm_id, IPC_RMID, &sbuf);
 926         }
 927 }
 928
 929 static int setup_thread_area(void)
 930 {
 931         /*
 932          * 1024 is too much on some machines, scale max_jobs if
 933          * we get a failure that looks like too large a shm segment
 934          */
 935         do {
 936                 int s = max_jobs * sizeof(struct thread_data);
 937
 938                 shm_id = shmget(0, s, IPC_CREAT | 0600);
 939                 if (shm_id != -1)
 940                         break;
 941                 if (errno != EINVAL) {
 942                         perror("shmget");
 943                         break;
 944                 }
 945
 946                 max_jobs >>= 1;
 947         } while (max_jobs);
 948
 949         if (shm_id == -1)
 950                 return 1;
 951
 952         threads = shmat(shm_id, NULL, 0);
 953         if (threads == (void *) -1) {
 954                 perror("shmat");
 955                 return 1;
 956         }
 957
 958         atexit(free_shm);
 959         return 0;
 960 }
 961
 962 int parse_options(int argc, char *argv[])
 963 {
 964         if (setup_thread_area())
 965                 return 1;
 966         if (fill_def_thread())
 967                 return 1;
 968
 969         parse_cmd_line(argc, argv);
 970
 971         if (!ini_file) {
 972                 printf("Need job file\n");
 973                 return 1;
 974         }
 975
 976         if (parse_jobs_ini(ini_file))
 977                 return 1;
 978
 979         return 0;
 980 }