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[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)) {
 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->thread_number);
 217                 else
 218                         sprintf(td->file_name, "%s.%d", jobname, td->thread_number);
 219         } else
 220                 strcpy(td->file_name, jobname);
 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))
 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);
 251         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);
 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
 267                 if (add_job(td_new, jobname, prioclass, prio))
 268                         goto err;
 269         }
 270         return 0;
 271 err:
 272         put_job(td);
 273         return -1;
 274 }
 275
 276 int init_random_state(struct thread_data *td)
 277 {
 278         unsigned long seed;
 279         int fd, num_maps, blocks;
 280
 281         fd = open("/dev/random", O_RDONLY);
 282         if (fd == -1) {
 283                 td_verror(td, errno);
 284                 return 1;
 285         }
 286
 287         if (read(fd, &seed, sizeof(seed)) < (int) sizeof(seed)) {
 288                 td_verror(td, EIO);
 289                 close(fd);
 290                 return 1;
 291         }
 292
 293         close(fd);
 294
 295         srand48_r(seed, &td->bsrange_state);
 296         srand48_r(seed, &td->verify_state);
 297
 298         if (td->sequential)
 299                 return 0;
 300
 301         if (repeatable)
 302                 seed = DEF_RANDSEED;
 303
 304         blocks = (td->io_size + td->min_bs - 1) / td->min_bs;
 305         num_maps = blocks / BLOCKS_PER_MAP;
 306         td->file_map = malloc(num_maps * sizeof(long));
 307         td->num_maps = num_maps;
 308         memset(td->file_map, 0, num_maps * sizeof(long));
 309
 310         srand48_r(seed, &td->random_state);
 311         return 0;
 312 }
 313
 314 static void fill_cpu_mask(os_cpu_mask_t cpumask, int cpu)
 315 {
 316 #ifdef FIO_HAVE_CPU_AFFINITY
 317         unsigned int i;
 318
 319         CPU_ZERO(&cpumask);
 320
 321         for (i = 0; i < sizeof(int) * 8; i++) {
 322                 if ((1 << i) & cpu)
 323                         CPU_SET(i, &cpumask);
 324         }
 325 #endif
 326 }
 327
 328 static unsigned long get_mult(char c)
 329 {
 330         switch (c) {
 331                 case 'k':
 332                 case 'K':
 333                         return 1024;
 334                 case 'm':
 335                 case 'M':
 336                         return 1024 * 1024;
 337                 case 'g':
 338                 case 'G':
 339                         return 1024 * 1024 * 1024;
 340                 default:
 341                         return 1;
 342         }
 343 }
 344
 345 /*
 346  * convert string after '=' into decimal value, noting any size suffix
 347  */
 348 static int str_cnv(char *p, unsigned long long *val)
 349 {
 350         char *str;
 351         int len;
 352
 353         str = strchr(p, '=');
 354         if (!str)
 355                 return 1;
 356
 357         str++;
 358         len = strlen(str);
 359
 360         *val = strtoul(str, NULL, 10);
 361         if (*val == ULONG_MAX && errno == ERANGE)
 362                 return 1;
 363
 364         *val *= get_mult(str[len - 2]);
 365         return 0;
 366 }
 367
 368 static int check_strcnv(char *p, char *name, unsigned long long *val)
 369 {
 370         if (strncmp(p, name, strlen(name) - 1))
 371                 return 1;
 372
 373         return str_cnv(p, val);
 374 }
 375
 376 static void strip_blank_front(char **p)
 377 {
 378         char *s = *p;
 379
 380         while (isblank(*s))
 381                 s++;
 382 }
 383
 384 static void strip_blank_end(char *p)
 385 {
 386         while (isblank(*p)) {
 387                 *p = '\0';
 388                 p--;
 389         }
 390 }
 391
 392 typedef int (str_cb_fn)(struct thread_data *, char *);
 393
 394 static int check_str(char *p, char *name, str_cb_fn *cb, struct thread_data *td)
 395 {
 396         char *s = strstr(p, name);
 397
 398         if (!s)
 399                 return 1;
 400
 401         s = strchr(s, '=');
 402         if (!s)
 403                 return 1;
 404
 405         s++;
 406         strip_blank_front(&s);
 407         return cb(td, s);
 408 }
 409
 410 static int check_strstore(char *p, char *name, char *dest)
 411 {
 412         char *s = strstr(p, name);
 413
 414         if (!s)
 415                 return 1;
 416
 417         s = strchr(p, '=');
 418         if (!s)
 419                 return 1;
 420
 421         s++;
 422         strip_blank_front(&s);
 423
 424         strcpy(dest, s);
 425
 426         s = dest + strlen(dest) - 1;
 427         strip_blank_end(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         }
 543
 544         fprintf(stderr, "bad data direction: %s\n", mem);
 545         return 1;
 546 }
 547
 548 static int str_verify_cb(struct thread_data *td, char *mem)
 549 {
 550         if (!strncmp(mem, "0", 1)) {
 551                 td->verify = VERIFY_NONE;
 552                 return 0;
 553         } else if (!strncmp(mem, "md5", 3) || !strncmp(mem, "1", 1)) {
 554                 td->verify = VERIFY_MD5;
 555                 return 0;
 556         } else if (!strncmp(mem, "crc32", 5)) {
 557                 td->verify = VERIFY_CRC32;
 558                 return 0;
 559         }
 560
 561         fprintf(stderr, "bad verify type: %s\n", mem);
 562         return 1;
 563 }
 564
 565 static int str_mem_cb(struct thread_data *td, char *mem)
 566 {
 567         if (!strncmp(mem, "malloc", 6)) {
 568                 td->mem_type = MEM_MALLOC;
 569                 return 0;
 570         } else if (!strncmp(mem, "shm", 3)) {
 571                 td->mem_type = MEM_SHM;
 572                 return 0;
 573         } else if (!strncmp(mem, "mmap", 4)) {
 574                 td->mem_type = MEM_MMAP;
 575                 return 0;
 576         }
 577
 578         fprintf(stderr, "bad mem type: %s\n", mem);
 579         return 1;
 580 }
 581
 582 static int str_ioengine_cb(struct thread_data *td, char *str)
 583 {
 584         if (!strncmp(str, "linuxaio", 8) || !strncmp(str, "aio", 3) ||
 585             !strncmp(str, "libaio", 6)) {
 586                 strcpy(td->io_engine_name, "libaio");
 587                 td->io_engine = FIO_LIBAIO;
 588                 return 0;
 589         } else if (!strncmp(str, "posixaio", 8)) {
 590                 strcpy(td->io_engine_name, "posixaio");
 591                 td->io_engine = FIO_POSIXAIO;
 592                 return 0;
 593         } else if (!strncmp(str, "sync", 4)) {
 594                 strcpy(td->io_engine_name, "sync");
 595                 td->io_engine = FIO_SYNCIO;
 596                 return 0;
 597         } else if (!strncmp(str, "mmap", 4)) {
 598                 strcpy(td->io_engine_name, "mmap");
 599                 td->io_engine = FIO_MMAPIO;
 600                 return 0;
 601         } else if (!strncmp(str, "sgio", 4)) {
 602                 strcpy(td->io_engine_name, "sgio");
 603                 td->io_engine = FIO_SGIO;
 604                 return 0;
 605         }
 606
 607         fprintf(stderr, "bad ioengine type: %s\n", str);
 608         return 1;
 609 }
 610
 611
 612 int parse_jobs_ini(char *file)
 613 {
 614         unsigned int prioclass, prio, cpu, global;
 615         unsigned long long ull;
 616         unsigned long ul1, ul2;
 617         struct thread_data *td;
 618         char *string, *name;
 619         fpos_t off;
 620         FILE *f;
 621         char *p;
 622
 623         f = fopen(file, "r");
 624         if (!f) {
 625                 perror("fopen");
 626                 return 1;
 627         }
 628
 629         string = malloc(4096);
 630         name = malloc(256);
 631
 632         while ((p = fgets(string, 4096, f)) != NULL) {
 633                 if (is_empty_or_comment(p))
 634                         continue;
 635                 if (sscanf(p, "[%s]", name) != 1)
 636                         continue;
 637
 638                 global = !strncmp(name, "global", 6);
 639
 640                 name[strlen(name) - 1] = '\0';
 641
 642                 td = get_new_job(global, &def_thread);
 643                 if (!td)
 644                         return 1;
 645
 646                 prioclass = 2;
 647                 prio = 4;
 648
 649                 fgetpos(f, &off);
 650                 while ((p = fgets(string, 4096, f)) != NULL) {
 651                         if (is_empty_or_comment(p))
 652                                 continue;
 653                         if (strstr(p, "["))
 654                                 break;
 655                         if (!check_int(p, "prio", &prio)) {
 656 #ifndef FIO_HAVE_IOPRIO
 657                                 fprintf(stderr, "io priorities not available\n");
 658                                 return 1;
 659 #endif
 660                                 fgetpos(f, &off);
 661                                 continue;
 662                         }
 663                         if (!check_int(p, "prioclass", &prioclass)) {
 664 #ifndef FIO_HAVE_IOPRIO
 665                                 fprintf(stderr, "io priorities not available\n");
 666                                 return 1;
 667 #endif
 668                                 fgetpos(f, &off);
 669                                 continue;
 670                         }
 671                         if (!check_int(p, "direct", &td->odirect)) {
 672                                 fgetpos(f, &off);
 673                                 continue;
 674                         }
 675                         if (!check_int(p, "rate", &td->rate)) {
 676                                 fgetpos(f, &off);
 677                                 continue;
 678                         }
 679                         if (!check_int(p, "ratemin", &td->ratemin)) {
 680                                 fgetpos(f, &off);
 681                                 continue;
 682                         }
 683                         if (!check_int(p, "ratecycle", &td->ratecycle)) {
 684                                 fgetpos(f, &off);
 685                                 continue;
 686                         }
 687                         if (!check_int(p, "thinktime", &td->thinktime)) {
 688                                 fgetpos(f, &off);
 689                                 continue;
 690                         }
 691                         if (!check_int(p, "cpumask", &cpu)) {
 692 #ifndef FIO_HAVE_CPU_AFFINITY
 693                                 fprintf(stderr, "cpu affinity not available\n");
 694                                 return 1;
 695 #endif
 696                                 fill_cpu_mask(td->cpumask, cpu);
 697                                 fgetpos(f, &off);
 698                                 continue;
 699                         }
 700                         if (!check_int(p, "fsync", &td->fsync_blocks)) {
 701                                 fgetpos(f, &off);
 702                                 continue;
 703                         }
 704                         if (!check_int(p, "startdelay", &td->start_delay)) {
 705                                 fgetpos(f, &off);
 706                                 continue;
 707                         }
 708                         if (!check_int(p, "timeout", &td->timeout)) {
 709                                 fgetpos(f, &off);
 710                                 continue;
 711                         }
 712                         if (!check_int(p, "invalidate",&td->invalidate_cache)) {
 713                                 fgetpos(f, &off);
 714                                 continue;
 715                         }
 716                         if (!check_int(p, "iodepth", &td->iodepth)) {
 717                                 fgetpos(f, &off);
 718                                 continue;
 719                         }
 720                         if (!check_int(p, "sync", &td->sync_io)) {
 721                                 fgetpos(f, &off);
 722                                 continue;
 723                         }
 724                         if (!check_int(p, "bwavgtime", &td->bw_avg_time)) {
 725                                 fgetpos(f, &off);
 726                                 continue;
 727                         }
 728                         if (!check_int(p, "create_serialize", &td->create_serialize)) {
 729                                 fgetpos(f, &off);
 730                                 continue;
 731                         }
 732                         if (!check_int(p, "create_fsync", &td->create_fsync)) {
 733                                 fgetpos(f, &off);
 734                                 continue;
 735                         }
 736                         if (!check_int(p, "loops", &td->loops)) {
 737                                 fgetpos(f, &off);
 738                                 continue;
 739                         }
 740                         if (!check_int(p, "numjobs", &td->numjobs)) {
 741                                 fgetpos(f, &off);
 742                                 continue;
 743                         }
 744                         if (!check_int(p, "overwrite", &td->overwrite)) {
 745                                 fgetpos(f, &off);
 746                                 continue;
 747                         }
 748                         if (!check_range(p, "bsrange", &ul1, &ul2)) {
 749                                 if (ul1 > ul2) {
 750                                         td->max_bs = ul1;
 751                                         td->min_bs = ul2;
 752                                 } else {
 753                                         td->max_bs = ul2;
 754                                         td->min_bs = ul1;
 755                                 }
 756                                 fgetpos(f, &off);
 757                                 continue;
 758                         }
 759                         if (!check_strcnv(p, "bs", &ull)) {
 760                                 td->bs = ull;
 761                                 fgetpos(f, &off);
 762                                 continue;
 763                         }
 764                         if (!check_strcnv(p, "size", &td->file_size)) {
 765                                 fgetpos(f, &off);
 766                                 continue;
 767                         }
 768                         if (!check_strcnv(p, "offset", &td->file_offset)) {
 769                                 fgetpos(f, &off);
 770                                 continue;
 771                         }
 772                         if (!check_strcnv(p, "zonesize", &td->zone_size)) {
 773                                 fgetpos(f, &off);
 774                                 continue;
 775                         }
 776                         if (!check_strcnv(p, "zoneskip", &td->zone_skip)) {
 777                                 fgetpos(f, &off);
 778                                 continue;
 779                         }
 780                         if (!check_strstore(p, "directory", td->directory)) {
 781                                 fgetpos(f, &off);
 782                                 continue;
 783                         }
 784                         if (!check_str(p, "mem", str_mem_cb, td)) {
 785                                 fgetpos(f, &off);
 786                                 continue;
 787                         }
 788                         if (!check_str(p, "verify", str_verify_cb, td)) {
 789                                 fgetpos(f, &off);
 790                                 continue;
 791                         }
 792                         if (!check_str(p, "rw", str_rw_cb, td)) {
 793                                 fgetpos(f, &off);
 794                                 continue;
 795                         }
 796                         if (!check_str(p, "ioengine", str_ioengine_cb, td)) {
 797                                 fgetpos(f, &off);
 798                                 continue;
 799                         }
 800                         if (!check_strset(p, "create")) {
 801                                 td->create_file = 1;
 802                                 fgetpos(f, &off);
 803                                 continue;
 804                         }
 805                         if (!check_strset(p, "exitall")) {
 806                                 exitall_on_terminate = 1;
 807                                 fgetpos(f, &off);
 808                                 continue;
 809                         }
 810                         if (!check_strset(p, "stonewall")) {
 811                                 td->stonewall = 1;
 812                                 fgetpos(f, &off);
 813                                 continue;
 814                         }
 815                         if (!check_strset(p, "thread")) {
 816                                 td->use_thread = 1;
 817                                 fgetpos(f, &off);
 818                                 continue;
 819                         }
 820
 821                         printf("Client%d: bad option %s\n",td->thread_number,p);
 822                 }
 823                 fsetpos(f, &off);
 824
 825                 if (add_job(td, name, prioclass, prio))
 826                         return 1;
 827         }
 828
 829         free(string);
 830         free(name);
 831         fclose(f);
 832         return 0;
 833 }
 834
 835 static int fill_def_thread(void)
 836 {
 837         memset(&def_thread, 0, sizeof(def_thread));
 838
 839         if (fio_getaffinity(getpid(), &def_thread.cpumask) == -1) {
 840                 perror("sched_getaffinity");
 841                 return 1;
 842         }
 843
 844         /*
 845          * fill globals
 846          */
 847         def_thread.ddir = DDIR_READ;
 848         def_thread.bs = DEF_BS;
 849         def_thread.min_bs = -1;
 850         def_thread.max_bs = -1;
 851         def_thread.io_engine = DEF_IO_ENGINE;
 852         strcpy(def_thread.io_engine_name, DEF_IO_ENGINE_NAME);
 853         def_thread.odirect = DEF_ODIRECT;
 854         def_thread.ratecycle = DEF_RATE_CYCLE;
 855         def_thread.sequential = DEF_SEQUENTIAL;
 856         def_thread.timeout = DEF_TIMEOUT;
 857         def_thread.create_file = DEF_CREATE;
 858         def_thread.overwrite = DEF_OVERWRITE;
 859         def_thread.invalidate_cache = DEF_INVALIDATE;
 860         def_thread.sync_io = DEF_SYNCIO;
 861         def_thread.mem_type = MEM_MALLOC;
 862         def_thread.bw_avg_time = DEF_BWAVGTIME;
 863         def_thread.create_serialize = DEF_CREATE_SER;
 864         def_thread.create_fsync = DEF_CREATE_FSYNC;
 865         def_thread.loops = DEF_LOOPS;
 866         def_thread.verify = DEF_VERIFY;
 867         def_thread.stonewall = DEF_STONEWALL;
 868         def_thread.numjobs = DEF_NUMJOBS;
 869         def_thread.use_thread = DEF_USE_THREAD;
 870 #ifdef FIO_HAVE_DISK_UTIL
 871         def_thread.do_disk_util = 1;
 872 #endif
 873
 874         return 0;
 875 }
 876
 877 static void parse_cmd_line(int argc, char *argv[])
 878 {
 879         int c;
 880
 881         while ((c = getopt(argc, argv, "s:b:t:r:R:o:f:lwv")) != EOF) {
 882                 switch (c) {
 883                         case 's':
 884                                 def_thread.sequential = !!atoi(optarg);
 885                                 break;
 886                         case 'b':
 887                                 def_thread.bs = atoi(optarg);
 888                                 def_thread.bs <<= 10;
 889                                 if (!def_thread.bs) {
 890                                         printf("bad block size\n");
 891                                         def_thread.bs = DEF_BS;
 892                                 }
 893                                 break;
 894                         case 't':
 895                                 def_thread.timeout = atoi(optarg);
 896                                 break;
 897                         case 'r':
 898                                 repeatable = !!atoi(optarg);
 899                                 break;
 900                         case 'R':
 901                                 rate_quit = !!atoi(optarg);
 902                                 break;
 903                         case 'o':
 904                                 def_thread.odirect = !!atoi(optarg);
 905                                 break;
 906                         case 'f':
 907                                 ini_file = strdup(optarg);
 908                                 break;
 909                         case 'l':
 910                                 write_lat_log = 1;
 911                                 break;
 912                         case 'w':
 913                                 write_bw_log = 1;
 914                                 break;
 915                         case 'v':
 916                                 printf("%s\n", fio_version_string);
 917                                 exit(0);
 918                 }
 919         }
 920 }
 921
 922 static void free_shm(void)
 923 {
 924         struct shmid_ds sbuf;
 925
 926         if (threads) {
 927                 shmdt(threads);
 928                 threads = NULL;
 929                 shmctl(shm_id, IPC_RMID, &sbuf);
 930         }
 931 }
 932
 933 static int setup_thread_area(void)
 934 {
 935         /*
 936          * 1024 is too much on some machines, scale max_jobs if
 937          * we get a failure that looks like too large a shm segment
 938          */
 939         do {
 940                 int s = max_jobs * sizeof(struct thread_data);
 941
 942                 shm_id = shmget(0, s, IPC_CREAT | 0600);
 943                 if (shm_id != -1)
 944                         break;
 945                 if (errno != EINVAL) {
 946                         perror("shmget");
 947                         break;
 948                 }
 949
 950                 max_jobs >>= 1;
 951         } while (max_jobs);
 952
 953         if (shm_id == -1)
 954                 return 1;
 955
 956         threads = shmat(shm_id, NULL, 0);
 957         if (threads == (void *) -1) {
 958                 perror("shmat");
 959                 return 1;
 960         }
 961
 962         atexit(free_shm);
 963         return 0;
 964 }
 965
 966 int parse_options(int argc, char *argv[])
 967 {
 968         if (setup_thread_area())
 969                 return 1;
 970         if (fill_def_thread())
 971                 return 1;
 972
 973         parse_cmd_line(argc, argv);
 974
 975         if (!ini_file) {
 976                 printf("Need job file\n");
 977                 return 1;
 978         }
 979
 980         if (parse_jobs_ini(ini_file))
 981                 return 1;
 982
 983         return 0;
 984 }