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