init.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 #define DEF_RWMIX_CYCLE         (500)
  40 #define DEF_RWMIX_READ          (50)
  41 #define DEF_NICE                (0)
  42
  43 static char fio_version_string[] = "fio 1.4";
  44
  45 static int repeatable = DEF_RAND_REPEAT;
  46 static char *ini_file;
  47 static int max_jobs = MAX_JOBS;
  48
  49 struct thread_data def_thread;
  50 struct thread_data *threads = NULL;
  51
  52 int rate_quit = 0;
  53 int write_lat_log = 0;
  54 int write_bw_log = 0;
  55 int exitall_on_terminate = 0;
  56 unsigned long long mlock_size = 0;
  57
  58 static struct thread_data *get_new_job(int global, struct thread_data *parent)
  59 {
  60         struct thread_data *td;
  61
  62         if (global)
  63                 return &def_thread;
  64         if (thread_number >= max_jobs)
  65                 return NULL;
  66
  67         td = &threads[thread_number++];
  68         *td = *parent;
  69         td->name[0] = '\0';
  70
  71         td->fd = -1;
  72         td->thread_number = thread_number;
  73
  74         return td;
  75 }
  76
  77 static void put_job(struct thread_data *td)
  78 {
  79         memset(&threads[td->thread_number - 1], 0, sizeof(*td));
  80         thread_number--;
  81 }
  82
  83 static int add_job(struct thread_data *td, const char *jobname, int job_add_num)
  84 {
  85         char *ddir_str[] = { "read", "write", "randread", "randwrite",
  86                              "rw", NULL, "randrw" };
  87         struct stat sb;
  88         int numjobs, ddir;
  89
  90 #ifndef FIO_HAVE_LIBAIO
  91         if (td->io_engine == FIO_LIBAIO) {
  92                 fprintf(stderr, "Linux libaio not available\n");
  93                 return 1;
  94         }
  95 #endif
  96 #ifndef FIO_HAVE_POSIXAIO
  97         if (td->io_engine == FIO_POSIXAIO) {
  98                 fprintf(stderr, "posix aio not available\n");
  99                 return 1;
 100         }
 101 #endif
 102
 103         /*
 104          * the def_thread is just for options, it's not a real job
 105          */
 106         if (td == &def_thread)
 107                 return 0;
 108
 109         if (td->io_engine & FIO_SYNCIO)
 110                 td->iodepth = 1;
 111         else {
 112                 if (!td->iodepth)
 113                         td->iodepth = 1;
 114         }
 115
 116         /*
 117          * only really works for sequential io for now
 118          */
 119         if (td->zone_size && !td->sequential)
 120                 td->zone_size = 0;
 121
 122         td->filetype = FIO_TYPE_FILE;
 123         if (!stat(jobname, &sb)) {
 124                 if (S_ISBLK(sb.st_mode))
 125                         td->filetype = FIO_TYPE_BD;
 126                 else if (S_ISCHR(sb.st_mode))
 127                         td->filetype = FIO_TYPE_CHAR;
 128         }
 129
 130         if (td->filetype == FIO_TYPE_FILE) {
 131                 char tmp[PATH_MAX];
 132
 133                 if (td->directory && td->directory[0] != '\0')
 134                         sprintf(tmp, "%s/%s.%d", td->directory, jobname, td->jobnum);
 135                 else
 136                         sprintf(tmp, "%s.%d", jobname, td->jobnum);
 137                 td->file_name = strdup(tmp);
 138         } else
 139                 td->file_name = strdup(jobname);
 140
 141         fio_sem_init(&td->mutex, 0);
 142
 143         td->clat_stat[0].min_val = td->clat_stat[1].min_val = ULONG_MAX;
 144         td->slat_stat[0].min_val = td->slat_stat[1].min_val = ULONG_MAX;
 145         td->bw_stat[0].min_val = td->bw_stat[1].min_val = ULONG_MAX;
 146
 147         if (td->min_bs == -1U)
 148                 td->min_bs = td->bs;
 149         if (td->max_bs == -1U)
 150                 td->max_bs = td->bs;
 151         if (td_read(td) && !td_rw(td))
 152                 td->verify = 0;
 153
 154         if (td->stonewall && td->thread_number > 1)
 155                 groupid++;
 156
 157         td->groupid = groupid;
 158
 159         if (setup_rate(td))
 160                 goto err;
 161
 162         if (write_lat_log) {
 163                 setup_log(&td->slat_log);
 164                 setup_log(&td->clat_log);
 165         }
 166         if (write_bw_log)
 167                 setup_log(&td->bw_log);
 168
 169         if (td->name[0] == '\0')
 170                 snprintf(td->name, sizeof(td->name)-1, "client%d", td->thread_number);
 171
 172         ddir = td->ddir + (!td->sequential << 1) + (td->iomix << 2);
 173
 174         if (!job_add_num)
 175                 printf("%s: (g=%d): rw=%s, odir=%d, bs=%d-%d, rate=%d, ioengine=%s, iodepth=%d\n", td->name, td->groupid, ddir_str[ddir], td->odirect, td->min_bs, td->max_bs, td->rate, td->io_engine_name, td->iodepth);
 176         else if (job_add_num == 1)
 177                 printf("...\n");
 178
 179         /*
 180          * recurse add identical jobs, clear numjobs and stonewall options
 181          * as they don't apply to sub-jobs
 182          */
 183         numjobs = td->numjobs;
 184         while (--numjobs) {
 185                 struct thread_data *td_new = get_new_job(0, td);
 186
 187                 if (!td_new)
 188                         goto err;
 189
 190                 td_new->numjobs = 1;
 191                 td_new->stonewall = 0;
 192                 td_new->jobnum = numjobs;
 193                 job_add_num = numjobs - 1;
 194
 195                 if (add_job(td_new, jobname, job_add_num))
 196                         goto err;
 197         }
 198         return 0;
 199 err:
 200         put_job(td);
 201         return -1;
 202 }
 203
 204 int init_random_state(struct thread_data *td)
 205 {
 206         unsigned long seeds[4];
 207         int fd, num_maps, blocks;
 208
 209         fd = open("/dev/urandom", O_RDONLY);
 210         if (fd == -1) {
 211                 td_verror(td, errno);
 212                 return 1;
 213         }
 214
 215         if (read(fd, seeds, sizeof(seeds)) < (int) sizeof(seeds)) {
 216                 td_verror(td, EIO);
 217                 close(fd);
 218                 return 1;
 219         }
 220
 221         close(fd);
 222
 223         os_random_seed(seeds[0], &td->bsrange_state);
 224         os_random_seed(seeds[1], &td->verify_state);
 225         os_random_seed(seeds[2], &td->rwmix_state);
 226
 227         if (td->sequential)
 228                 return 0;
 229
 230         if (repeatable)
 231                 seeds[3] = DEF_RANDSEED;
 232
 233         blocks = (td->io_size + td->min_bs - 1) / td->min_bs;
 234         num_maps = blocks / BLOCKS_PER_MAP;
 235         td->file_map = malloc(num_maps * sizeof(long));
 236         td->num_maps = num_maps;
 237         memset(td->file_map, 0, num_maps * sizeof(long));
 238
 239         os_random_seed(seeds[3], &td->random_state);
 240         return 0;
 241 }
 242
 243 static void fill_cpu_mask(os_cpu_mask_t cpumask, int cpu)
 244 {
 245 #ifdef FIO_HAVE_CPU_AFFINITY
 246         unsigned int i;
 247
 248         CPU_ZERO(&cpumask);
 249
 250         for (i = 0; i < sizeof(int) * 8; i++) {
 251                 if ((1 << i) & cpu)
 252                         CPU_SET(i, &cpumask);
 253         }
 254 #endif
 255 }
 256
 257 static unsigned long get_mult(char c)
 258 {
 259         switch (c) {
 260                 case 'k':
 261                 case 'K':
 262                         return 1024;
 263                 case 'm':
 264                 case 'M':
 265                         return 1024 * 1024;
 266                 case 'g':
 267                 case 'G':
 268                         return 1024 * 1024 * 1024;
 269                 default:
 270                         return 1;
 271         }
 272 }
 273
 274 /*
 275  * convert string after '=' into decimal value, noting any size suffix
 276  */
 277 static int str_cnv(char *p, unsigned long long *val)
 278 {
 279         char *str;
 280         int len;
 281
 282         str = strchr(p, '=');
 283         if (!str)
 284                 return 1;
 285
 286         str++;
 287         len = strlen(str);
 288
 289         *val = strtoul(str, NULL, 10);
 290         if (*val == ULONG_MAX && errno == ERANGE)
 291                 return 1;
 292
 293         *val *= get_mult(str[len - 1]);
 294         return 0;
 295 }
 296
 297 static int check_strcnv(char *p, char *name, unsigned long long *val)
 298 {
 299         if (strncmp(p, name, strlen(name) - 1))
 300                 return 1;
 301
 302         return str_cnv(p, val);
 303 }
 304
 305 static void strip_blank_front(char **p)
 306 {
 307         char *s = *p;
 308
 309         while (isspace(*s))
 310                 s++;
 311 }
 312
 313 static void strip_blank_end(char *p)
 314 {
 315         char *s = p + strlen(p) - 1;
 316
 317         while (isspace(*s) || iscntrl(*s))
 318                 s--;
 319
 320         *(s + 1) = '\0';
 321 }
 322
 323 typedef int (str_cb_fn)(struct thread_data *, char *);
 324
 325 static int check_str(char *p, char *name, str_cb_fn *cb, struct thread_data *td)
 326 {
 327         char *s;
 328
 329         if (strncmp(p, name, strlen(name)))
 330                 return 1;
 331
 332         s = strstr(p, name);
 333         if (!s)
 334                 return 1;
 335
 336         s = strchr(s, '=');
 337         if (!s)
 338                 return 1;
 339
 340         s++;
 341         strip_blank_front(&s);
 342         return cb(td, s);
 343 }
 344
 345 static int check_strstore(char *p, char *name, char *dest)
 346 {
 347         char *s;
 348
 349         if (strncmp(p, name, strlen(name)))
 350                 return 1;
 351
 352         s = strstr(p, name);
 353         if (!s)
 354                 return 1;
 355
 356         s = strchr(p, '=');
 357         if (!s)
 358                 return 1;
 359
 360         s++;
 361         strip_blank_front(&s);
 362
 363         strcpy(dest, s);
 364         return 0;
 365 }
 366
 367 static int __check_range(char *str, unsigned long *val)
 368 {
 369         char suffix;
 370
 371         if (sscanf(str, "%lu%c", val, &suffix) == 2) {
 372                 *val *= get_mult(suffix);
 373                 return 0;
 374         }
 375
 376         if (sscanf(str, "%lu", val) == 1)
 377                 return 0;
 378
 379         return 1;
 380 }
 381
 382 static int check_range(char *p, char *name, unsigned long *s, unsigned long *e)
 383 {
 384         char option[128];
 385         char *str, *p1, *p2;
 386
 387         if (strncmp(p, name, strlen(name)))
 388                 return 1;
 389
 390         strcpy(option, p);
 391         p = option;
 392
 393         str = strstr(p, name);
 394         if (!str)
 395                 return 1;
 396
 397         p += strlen(name);
 398
 399         str = strchr(p, '=');
 400         if (!str)
 401                 return 1;
 402
 403         /*
 404          * 'p' now holds whatever is after the '=' sign
 405          */
 406         p1 = str + 1;
 407
 408         /*
 409          * terminate p1 at the '-' sign
 410          */
 411         p = strchr(p1, '-');
 412         if (!p)
 413                 return 1;
 414
 415         p2 = p + 1;
 416         *p = '\0';
 417
 418         if (!__check_range(p1, s) && !__check_range(p2, e))
 419                 return 0;
 420
 421         return 1;
 422 }
 423
 424 static int check_int(char *p, char *name, unsigned int *val)
 425 {
 426         char *str;
 427
 428         if (strncmp(p, name, strlen(name)))
 429                 return 1;
 430
 431         str = strstr(p, name);
 432         if (!str)
 433                 return 1;
 434
 435         str = strchr(p, '=');
 436         if (!str)
 437                 return 1;
 438
 439         str++;
 440
 441         if (sscanf(str, "%u", val) == 1)
 442                 return 0;
 443
 444         return 1;
 445 }
 446
 447 static int check_strset(char *p, char *name)
 448 {
 449         return strncmp(p, name, strlen(name));
 450 }
 451
 452 static int is_empty_or_comment(char *line)
 453 {
 454         unsigned int i;
 455
 456         for (i = 0; i < strlen(line); i++) {
 457                 if (line[i] == ';')
 458                         return 1;
 459                 if (!isspace(line[i]) && !iscntrl(line[i]))
 460                         return 0;
 461         }
 462
 463         return 1;
 464 }
 465
 466 static int str_rw_cb(struct thread_data *td, char *mem)
 467 {
 468         if (!strncmp(mem, "read", 4) || !strncmp(mem, "0", 1)) {
 469                 td->ddir = DDIR_READ;
 470                 td->sequential = 1;
 471                 return 0;
 472         } else if (!strncmp(mem, "randread", 8)) {
 473                 td->ddir = DDIR_READ;
 474                 td->sequential = 0;
 475                 return 0;
 476         } else if (!strncmp(mem, "write", 5) || !strncmp(mem, "1", 1)) {
 477                 td->ddir = DDIR_WRITE;
 478                 td->sequential = 1;
 479                 return 0;
 480         } else if (!strncmp(mem, "randwrite", 9)) {
 481                 td->ddir = DDIR_WRITE;
 482                 td->sequential = 0;
 483                 return 0;
 484         } else if (!strncmp(mem, "rw", 2)) {
 485                 td->ddir = 0;
 486                 td->iomix = 1;
 487                 td->sequential = 1;
 488                 return 0;
 489         } else if (!strncmp(mem, "randrw", 6)) {
 490                 td->ddir = 0;
 491                 td->iomix = 1;
 492                 td->sequential = 0;
 493                 return 0;
 494         }
 495
 496         fprintf(stderr, "fio: data direction: read, write, randread, randwrite, rw, randrw\n");
 497         return 1;
 498 }
 499
 500 static int str_verify_cb(struct thread_data *td, char *mem)
 501 {
 502         if (!strncmp(mem, "0", 1)) {
 503                 td->verify = VERIFY_NONE;
 504                 return 0;
 505         } else if (!strncmp(mem, "md5", 3) || !strncmp(mem, "1", 1)) {
 506                 td->verify = VERIFY_MD5;
 507                 return 0;
 508         } else if (!strncmp(mem, "crc32", 5)) {
 509                 td->verify = VERIFY_CRC32;
 510                 return 0;
 511         }
 512
 513         fprintf(stderr, "fio: verify types: md5, crc32\n");
 514         return 1;
 515 }
 516
 517 static int str_mem_cb(struct thread_data *td, char *mem)
 518 {
 519         if (!strncmp(mem, "malloc", 6)) {
 520                 td->mem_type = MEM_MALLOC;
 521                 return 0;
 522         } else if (!strncmp(mem, "shm", 3)) {
 523                 td->mem_type = MEM_SHM;
 524                 return 0;
 525         } else if (!strncmp(mem, "mmap", 4)) {
 526                 td->mem_type = MEM_MMAP;
 527                 return 0;
 528         }
 529
 530         fprintf(stderr, "fio: mem type: malloc, shm, mmap\n");
 531         return 1;
 532 }
 533
 534 static int str_ioengine_cb(struct thread_data *td, char *str)
 535 {
 536         if (!strncmp(str, "linuxaio", 8) || !strncmp(str, "aio", 3) ||
 537             !strncmp(str, "libaio", 6)) {
 538                 strcpy(td->io_engine_name, "libaio");
 539                 td->io_engine = FIO_LIBAIO;
 540                 return 0;
 541         } else if (!strncmp(str, "posixaio", 8)) {
 542                 strcpy(td->io_engine_name, "posixaio");
 543                 td->io_engine = FIO_POSIXAIO;
 544                 return 0;
 545         } else if (!strncmp(str, "sync", 4)) {
 546                 strcpy(td->io_engine_name, "sync");
 547                 td->io_engine = FIO_SYNCIO;
 548                 return 0;
 549         } else if (!strncmp(str, "mmap", 4)) {
 550                 strcpy(td->io_engine_name, "mmap");
 551                 td->io_engine = FIO_MMAPIO;
 552                 return 0;
 553         } else if (!strncmp(str, "sgio", 4)) {
 554                 strcpy(td->io_engine_name, "sgio");
 555                 td->io_engine = FIO_SGIO;
 556                 return 0;
 557         } else if (!strncmp(str, "splice", 6)) {
 558                 strcpy(td->io_engine_name, "splice");
 559                 td->io_engine = FIO_SPLICEIO;
 560                 return 0;
 561         }
 562
 563         fprintf(stderr, "fio: ioengine: { linuxaio, aio, libaio }, posixaio, sync, mmap, sgio, splice\n");
 564         return 1;
 565 }
 566
 567 /*
 568  * This is our [ini] type file parser.
 569  */
 570 int parse_jobs_ini(char *file)
 571 {
 572         unsigned int prioclass, prio, cpu, global, il;
 573         unsigned long long ull;
 574         unsigned long ul1, ul2;
 575         struct thread_data *td;
 576         char *string, *name, *tmpbuf;
 577         fpos_t off;
 578         FILE *f;
 579         char *p;
 580         int ret = 0;
 581
 582         f = fopen(file, "r");
 583         if (!f) {
 584                 perror("fopen job file");
 585                 return 1;
 586         }
 587
 588         string = malloc(4096);
 589         name = malloc(256);
 590         tmpbuf = malloc(4096);
 591
 592         while ((p = fgets(string, 4096, f)) != NULL) {
 593                 if (ret)
 594                         break;
 595                 if (is_empty_or_comment(p))
 596                         continue;
 597                 if (sscanf(p, "[%s]", name) != 1)
 598                         continue;
 599
 600                 global = !strncmp(name, "global", 6);
 601
 602                 name[strlen(name) - 1] = '\0';
 603
 604                 td = get_new_job(global, &def_thread);
 605                 if (!td) {
 606                         ret = 1;
 607                         break;
 608                 }
 609
 610                 fgetpos(f, &off);
 611                 while ((p = fgets(string, 4096, f)) != NULL) {
 612                         if (is_empty_or_comment(p))
 613                                 continue;
 614                         if (strstr(p, "["))
 615                                 break;
 616                         strip_blank_front(&p);
 617                         strip_blank_end(p);
 618
 619                         if (!check_int(p, "prio", &prio)) {
 620 #ifndef FIO_HAVE_IOPRIO
 621                                 fprintf(stderr, "io priorities not available\n");
 622                                 ret = 1;
 623                                 break;
 624 #endif
 625                                 td->ioprio |= prio;
 626                                 fgetpos(f, &off);
 627                                 continue;
 628                         }
 629                         if (!check_int(p, "prioclass", &prioclass)) {
 630 #ifndef FIO_HAVE_IOPRIO
 631                                 fprintf(stderr, "io priorities not available\n");
 632                                 ret = 1;
 633                                 break;
 634 #else
 635                                 td->ioprio |= prioclass << IOPRIO_CLASS_SHIFT;
 636                                 fgetpos(f, &off);
 637                                 continue;
 638 #endif
 639                         }
 640                         if (!check_int(p, "direct", &il)) {
 641                                 td->odirect = il;
 642                                 fgetpos(f, &off);
 643                                 continue;
 644                         }
 645                         if (!check_int(p, "rate", &td->rate)) {
 646                                 fgetpos(f, &off);
 647                                 continue;
 648                         }
 649                         if (!check_int(p, "ratemin", &td->ratemin)) {
 650                                 fgetpos(f, &off);
 651                                 continue;
 652                         }
 653                         if (!check_int(p, "ratecycle", &td->ratecycle)) {
 654                                 fgetpos(f, &off);
 655                                 continue;
 656                         }
 657                         if (!check_int(p, "thinktime", &td->thinktime)) {
 658                                 fgetpos(f, &off);
 659                                 continue;
 660                         }
 661                         if (!check_int(p, "cpumask", &cpu)) {
 662 #ifndef FIO_HAVE_CPU_AFFINITY
 663                                 fprintf(stderr, "cpu affinity not available\n");
 664                                 ret = 1;
 665                                 break;
 666 #endif
 667                                 fill_cpu_mask(td->cpumask, cpu);
 668                                 fgetpos(f, &off);
 669                                 continue;
 670                         }
 671                         if (!check_int(p, "fsync", &td->fsync_blocks)) {
 672                                 fgetpos(f, &off);
 673                                 td->end_fsync = 1;
 674                                 continue;
 675                         }
 676                         if (!check_int(p, "startdelay", &td->start_delay)) {
 677                                 fgetpos(f, &off);
 678                                 continue;
 679                         }
 680                         if (!check_int(p, "timeout", &td->timeout)) {
 681                                 fgetpos(f, &off);
 682                                 continue;
 683                         }
 684                         if (!check_int(p, "invalidate", &il)) {
 685                                 td->invalidate_cache = il;
 686                                 fgetpos(f, &off);
 687                                 continue;
 688                         }
 689                         if (!check_int(p, "iodepth", &td->iodepth)) {
 690                                 fgetpos(f, &off);
 691                                 continue;
 692                         }
 693                         if (!check_int(p, "sync", &il)) {
 694                                 td->sync_io = il;
 695                                 fgetpos(f, &off);
 696                                 continue;
 697                         }
 698                         if (!check_int(p, "bwavgtime", &td->bw_avg_time)) {
 699                                 fgetpos(f, &off);
 700                                 continue;
 701                         }
 702                         if (!check_int(p, "create_serialize", &il)) {
 703                                 td->create_serialize = il;
 704                                 fgetpos(f, &off);
 705                                 continue;
 706                         }
 707                         if (!check_int(p, "create_fsync", &il)) {
 708                                 td->create_fsync = il;
 709                                 fgetpos(f, &off);
 710                                 continue;
 711                         }
 712                         if (!check_int(p, "end_fsync", &il)) {
 713                                 td->end_fsync = il;
 714                                 fgetpos(f, &off);
 715                                 continue;
 716                         }
 717                         if (!check_int(p, "loops", &td->loops)) {
 718                                 fgetpos(f, &off);
 719                                 continue;
 720                         }
 721                         if (!check_int(p, "numjobs", &td->numjobs)) {
 722                                 fgetpos(f, &off);
 723                                 continue;
 724                         }
 725                         if (!check_int(p, "overwrite", &il)) {
 726                                 td->overwrite = il;
 727                                 fgetpos(f, &off);
 728                                 continue;
 729                         }
 730                         if (!check_int(p, "rwmixcycle", &td->rwmixcycle)) {
 731                                 fgetpos(f, &off);
 732                                 continue;
 733                         }
 734                         if (!check_int(p, "rwmixread", &il)) {
 735                                 if (il > 100)
 736                                         il = 100;
 737                                 td->rwmixread = il;
 738                                 fgetpos(f, &off);
 739                                 continue;
 740                         }
 741                         if (!check_int(p, "rwmixwrite", &il)) {
 742                                 if (il > 100)
 743                                         il = 100;
 744                                 td->rwmixread = 100 - il;
 745                                 fgetpos(f, &off);
 746                                 continue;
 747                         }
 748                         if (!check_int(p, "nice", &td->nice)) {
 749                                 fgetpos(f, &off);
 750                                 continue;
 751                         }
 752                         if (!check_range(p, "bsrange", &ul1, &ul2)) {
 753                                 if (ul1 > ul2) {
 754                                         td->max_bs = ul1;
 755                                         td->min_bs = ul2;
 756                                 } else {
 757                                         td->max_bs = ul2;
 758                                         td->min_bs = ul1;
 759                                 }
 760                                 fgetpos(f, &off);
 761                                 continue;
 762                         }
 763                         if (!check_strcnv(p, "bs", &ull)) {
 764                                 td->bs = ull;
 765                                 fgetpos(f, &off);
 766                                 continue;
 767                         }
 768                         if (!check_strcnv(p, "size", &td->file_size)) {
 769                                 fgetpos(f, &off);
 770                                 continue;
 771                         }
 772                         if (!check_strcnv(p, "offset", &td->file_offset)) {
 773                                 fgetpos(f, &off);
 774                                 continue;
 775                         }
 776                         if (!check_strcnv(p, "zonesize", &td->zone_size)) {
 777                                 fgetpos(f, &off);
 778                                 continue;
 779                         }
 780                         if (!check_strcnv(p, "zoneskip", &td->zone_skip)) {
 781                                 fgetpos(f, &off);
 782                                 continue;
 783                         }
 784                         if (!check_strcnv(p, "lockmem", &mlock_size)) {
 785                                 fgetpos(f, &off);
 786                                 continue;
 787                         }
 788                         if (!check_strstore(p, "directory", tmpbuf)) {
 789                                 td->directory = strdup(tmpbuf);
 790                                 fgetpos(f, &off);
 791                                 continue;
 792                         }
 793                         if (!check_strstore(p, "name", tmpbuf)) {
 794                                 snprintf(td->name, sizeof(td->name)-1, "%s%d", tmpbuf, td->thread_number);
 795                                 fgetpos(f, &off);
 796                                 continue;
 797                         }
 798                         if (!check_str(p, "mem", str_mem_cb, td)) {
 799                                 fgetpos(f, &off);
 800                                 continue;
 801                         }
 802                         if (!check_str(p, "verify", str_verify_cb, td)) {
 803                                 fgetpos(f, &off);
 804                                 continue;
 805                         }
 806                         if (!check_str(p, "rw", str_rw_cb, td)) {
 807                                 fgetpos(f, &off);
 808                                 continue;
 809                         }
 810                         if (!check_str(p, "ioengine", str_ioengine_cb, td)) {
 811                                 fgetpos(f, &off);
 812                                 continue;
 813                         }
 814                         if (!check_strset(p, "create")) {
 815                                 td->create_file = 1;
 816                                 fgetpos(f, &off);
 817                                 continue;
 818                         }
 819                         if (!check_strset(p, "exitall")) {
 820                                 exitall_on_terminate = 1;
 821                                 fgetpos(f, &off);
 822                                 continue;
 823                         }
 824                         if (!check_strset(p, "stonewall")) {
 825                                 td->stonewall = 1;
 826                                 fgetpos(f, &off);
 827                                 continue;
 828                         }
 829                         if (!check_strset(p, "thread")) {
 830                                 td->use_thread = 1;
 831                                 fgetpos(f, &off);
 832                                 continue;
 833                         }
 834                         if (!check_strstore(p, "iolog", tmpbuf)) {
 835                                 if (td->write_iolog) {
 836                                         fprintf(stderr, "fio: read iolog overrides given write_iolog\n");
 837                                         free(td->iolog_file);
 838                                         td->write_iolog = 0;
 839                                 }
 840                                 td->iolog_file = strdup(tmpbuf);
 841                                 td->read_iolog = 1;
 842                                 fgetpos(f, &off);
 843                                 continue;
 844                         }
 845                         if (!check_strstore(p, "write_iolog", tmpbuf)) {
 846                                 if (!td->read_iolog) {
 847                                         td->iolog_file = strdup(tmpbuf);
 848                                         td->write_iolog = 1;
 849                                 } else
 850                                         fprintf(stderr, "fio: read iolog overrides given write_iolog\n");
 851                                 fgetpos(f, &off);
 852                                 continue;
 853                         }
 854                         if (!check_strstore(p, "exec_prerun", tmpbuf)) {
 855                                 td->exec_prerun = strdup(tmpbuf);
 856                                 fgetpos(f, &off);
 857                                 continue;
 858                         }
 859                         if (!check_strstore(p, "exec_postrun", tmpbuf)) {
 860                                 td->exec_postrun = strdup(tmpbuf);
 861                                 fgetpos(f, &off);
 862                                 continue;
 863                         }
 864                         if (!check_strstore(p, "ioscheduler", tmpbuf)) {
 865 #ifndef FIO_HAVE_IOSCHED_SWITCH
 866                                 fprintf(stderr, "io scheduler switching not available\n");
 867                                 ret = 1;
 868                                 break;
 869 #else
 870                                 td->ioscheduler = strdup(tmpbuf);
 871                                 fgetpos(f, &off);
 872                                 continue;
 873 #endif
 874                         }
 875
 876                         /*
 877                          * Don't break here, continue parsing options so we
 878                          * dump all the bad ones. Makes trial/error fixups
 879                          * easier on the user.
 880                          */
 881                         printf("Client%d: bad option %s\n",td->thread_number,p);
 882                         ret = 1;
 883                 }
 884
 885                 if (!ret) {
 886                         fsetpos(f, &off);
 887                         ret = add_job(td, name, 0);
 888                 }
 889                 if (ret)
 890                         break;
 891         }
 892
 893         free(string);
 894         free(name);
 895         free(tmpbuf);
 896         fclose(f);
 897         return ret;
 898 }
 899
 900 static int fill_def_thread(void)
 901 {
 902         memset(&def_thread, 0, sizeof(def_thread));
 903
 904         if (fio_getaffinity(getpid(), &def_thread.cpumask) == -1) {
 905                 perror("sched_getaffinity");
 906                 return 1;
 907         }
 908
 909         /*
 910          * fill globals
 911          */
 912         def_thread.ddir = DDIR_READ;
 913         def_thread.iomix = 0;
 914         def_thread.bs = DEF_BS;
 915         def_thread.min_bs = -1;
 916         def_thread.max_bs = -1;
 917         def_thread.io_engine = DEF_IO_ENGINE;
 918         strcpy(def_thread.io_engine_name, DEF_IO_ENGINE_NAME);
 919         def_thread.odirect = DEF_ODIRECT;
 920         def_thread.ratecycle = DEF_RATE_CYCLE;
 921         def_thread.sequential = DEF_SEQUENTIAL;
 922         def_thread.timeout = DEF_TIMEOUT;
 923         def_thread.create_file = DEF_CREATE;
 924         def_thread.overwrite = DEF_OVERWRITE;
 925         def_thread.invalidate_cache = DEF_INVALIDATE;
 926         def_thread.sync_io = DEF_SYNCIO;
 927         def_thread.mem_type = MEM_MALLOC;
 928         def_thread.bw_avg_time = DEF_BWAVGTIME;
 929         def_thread.create_serialize = DEF_CREATE_SER;
 930         def_thread.create_fsync = DEF_CREATE_FSYNC;
 931         def_thread.loops = DEF_LOOPS;
 932         def_thread.verify = DEF_VERIFY;
 933         def_thread.stonewall = DEF_STONEWALL;
 934         def_thread.numjobs = DEF_NUMJOBS;
 935         def_thread.use_thread = DEF_USE_THREAD;
 936         def_thread.rwmixcycle = DEF_RWMIX_CYCLE;
 937         def_thread.rwmixread = DEF_RWMIX_READ;
 938         def_thread.nice = DEF_NICE;
 939 #ifdef FIO_HAVE_DISK_UTIL
 940         def_thread.do_disk_util = 1;
 941 #endif
 942
 943         return 0;
 944 }
 945
 946 static void usage(char *name)
 947 {
 948         printf("%s\n", fio_version_string);
 949         printf("\t-s IO is sequential\n");
 950         printf("\t-b Block size in KiB for each IO\n");
 951         printf("\t-t Runtime in seconds\n");
 952         printf("\t-R Exit all threads on failure to meet rate goal\n");
 953         printf("\t-o Use O_DIRECT\n");
 954         printf("\t-l Generate per-job latency logs\n");
 955         printf("\t-w Generate per-job bandwidth logs\n");
 956         printf("\t-f Job file (Required)\n");
 957         printf("\t-v Print version info and exit\n");
 958 }
 959
 960 static void parse_cmd_line(int argc, char *argv[])
 961 {
 962         int c;
 963
 964         while ((c = getopt(argc, argv, "s:b:t:r:R:o:f:lwvh")) != EOF) {
 965                 switch (c) {
 966                         case 's':
 967                                 def_thread.sequential = !!atoi(optarg);
 968                                 break;
 969                         case 'b':
 970                                 def_thread.bs = atoi(optarg);
 971                                 def_thread.bs <<= 10;
 972                                 if (!def_thread.bs) {
 973                                         printf("bad block size\n");
 974                                         def_thread.bs = DEF_BS;
 975                                 }
 976                                 break;
 977                         case 't':
 978                                 def_thread.timeout = atoi(optarg);
 979                                 break;
 980                         case 'r':
 981                                 repeatable = !!atoi(optarg);
 982                                 break;
 983                         case 'R':
 984                                 rate_quit = !!atoi(optarg);
 985                                 break;
 986                         case 'o':
 987                                 def_thread.odirect = !!atoi(optarg);
 988                                 break;
 989                         case 'f':
 990                                 ini_file = strdup(optarg);
 991                                 break;
 992                         case 'l':
 993                                 write_lat_log = 1;
 994                                 break;
 995                         case 'w':
 996                                 write_bw_log = 1;
 997                                 break;
 998                         case 'h':
 999                                 usage(argv[0]);
1000                                 exit(0);
1001                         case 'v':
1002                                 printf("%s\n", fio_version_string);
1003                                 exit(0);
1004                 }
1005         }
1006
1007         if (!ini_file && argc > 1 && argv[argc - 1][0] != '-')
1008                 ini_file = strdup(argv[argc - 1]);
1009 }
1010
1011 static void free_shm(void)
1012 {
1013         struct shmid_ds sbuf;
1014
1015         if (threads) {
1016                 shmdt((void *) threads);
1017                 threads = NULL;
1018                 shmctl(shm_id, IPC_RMID, &sbuf);
1019         }
1020 }
1021
1022 static int setup_thread_area(void)
1023 {
1024         /*
1025          * 1024 is too much on some machines, scale max_jobs if
1026          * we get a failure that looks like too large a shm segment
1027          */
1028         do {
1029                 int s = max_jobs * sizeof(struct thread_data);
1030
1031                 shm_id = shmget(0, s, IPC_CREAT | 0600);
1032                 if (shm_id != -1)
1033                         break;
1034                 if (errno != EINVAL) {
1035                         perror("shmget");
1036                         break;
1037                 }
1038
1039                 max_jobs >>= 1;
1040         } while (max_jobs);
1041
1042         if (shm_id == -1)
1043                 return 1;
1044
1045         threads = shmat(shm_id, NULL, 0);
1046         if (threads == (void *) -1) {
1047                 perror("shmat");
1048                 return 1;
1049         }
1050
1051         atexit(free_shm);
1052         return 0;
1053 }
1054
1055 int parse_options(int argc, char *argv[])
1056 {
1057         if (setup_thread_area())
1058                 return 1;
1059         if (fill_def_thread())
1060                 return 1;
1061
1062         parse_cmd_line(argc, argv);
1063
1064         if (!ini_file) {
1065                 printf("Need job file\n");
1066                 usage(argv[0]);
1067                 return 1;
1068         }
1069
1070         if (parse_jobs_ini(ini_file))
1071                 return 1;
1072
1073         return 0;
1074 }