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_SEQUENTIAL  (1)
  21 #define DEF_RAND_REPEAT (1)
  22 #define DEF_OVERWRITE   (1)
  23 #define DEF_CREATE      (1)
  24 #define DEF_INVALIDATE  (1)
  25 #define DEF_SYNCIO      (0)
  26 #define DEF_RANDSEED    (0xb1899bedUL)
  27 #define DEF_BWAVGTIME   (500)
  28 #define DEF_CREATE_SER  (1)
  29 #define DEF_CREATE_FSYNC        (1)
  30 #define DEF_LOOPS       (1)
  31 #define DEF_VERIFY      (0)
  32 #define DEF_STONEWALL   (0)
  33 #define DEF_NUMJOBS     (1)
  34 #define DEF_USE_THREAD  (0)
  35 #define DEF_USE_MMAP    (0)
  36 #define DEF_FILE_SIZE   (1024 * 1024 * 1024UL)
  37
  38 static int repeatable = DEF_RAND_REPEAT;
  39 static char *ini_file;
  40 static int max_jobs = MAX_JOBS;
  41
  42 struct thread_data def_thread;
  43 struct thread_data *threads = NULL;
  44
  45 int rate_quit = 0;
  46 int write_lat_log = 0;
  47 int write_bw_log = 0;
  48 int exitall_on_terminate = 0;
  49
  50 static int setup_rate(struct thread_data *td)
  51 {
  52         int nr_reads_per_sec;
  53
  54         if (!td->rate)
  55                 return 0;
  56
  57         if (td->rate < td->ratemin) {
  58                 fprintf(stderr, "min rate larger than nominal rate\n");
  59                 return -1;
  60         }
  61
  62         nr_reads_per_sec = (td->rate * 1024) / td->min_bs;
  63         td->rate_usec_cycle = 1000000 / nr_reads_per_sec;
  64         td->rate_pending_usleep = 0;
  65         return 0;
  66 }
  67
  68 static void setup_log(struct io_log **log)
  69 {
  70         struct io_log *l = malloc(sizeof(*l));
  71
  72         l->nr_samples = 0;
  73         l->max_samples = 1024;
  74         l->log = malloc(l->max_samples * sizeof(struct io_sample));
  75         *log = l;
  76 }
  77
  78 void finish_log(struct thread_data *td, struct io_log *log, const char *name)
  79 {
  80         char file_name[128];
  81         FILE *f;
  82         unsigned int i;
  83
  84         sprintf(file_name, "client%d_%s.log", td->thread_number, name);
  85         f = fopen(file_name, "w");
  86         if (!f) {
  87                 perror("fopen log");
  88                 return;
  89         }
  90
  91         for (i = 0; i < log->nr_samples; i++)
  92                 fprintf(f, "%lu, %lu\n", log->log[i].time, log->log[i].val);
  93
  94         fclose(f);
  95         free(log->log);
  96         free(log);
  97 }
  98
  99 static struct thread_data *get_new_job(int global, struct thread_data *parent)
 100 {
 101         struct thread_data *td;
 102
 103         if (global)
 104                 return &def_thread;
 105         if (thread_number >= max_jobs)
 106                 return NULL;
 107
 108         td = &threads[thread_number++];
 109         memset(td, 0, sizeof(*td));
 110
 111         td->fd = -1;
 112         td->thread_number = thread_number;
 113
 114         td->ddir = parent->ddir;
 115         td->ioprio = parent->ioprio;
 116         td->sequential = parent->sequential;
 117         td->bs = parent->bs;
 118         td->min_bs = parent->min_bs;
 119         td->max_bs = parent->max_bs;
 120         td->odirect = parent->odirect;
 121         td->thinktime = parent->thinktime;
 122         td->fsync_blocks = parent->fsync_blocks;
 123         td->start_delay = parent->start_delay;
 124         td->timeout = parent->timeout;
 125         td->io_engine = parent->io_engine;
 126         td->create_file = parent->create_file;
 127         td->overwrite = parent->overwrite;
 128         td->invalidate_cache = parent->invalidate_cache;
 129         td->file_size = parent->file_size;
 130         td->file_offset = parent->file_offset;
 131         td->rate = parent->rate;
 132         td->ratemin = parent->ratemin;
 133         td->ratecycle = parent->ratecycle;
 134         td->aio_depth = parent->aio_depth;
 135         td->sync_io = parent->sync_io;
 136         td->mem_type = parent->mem_type;
 137         td->bw_avg_time = parent->bw_avg_time;
 138         td->create_serialize = parent->create_serialize;
 139         td->create_fsync = parent->create_fsync;
 140         td->loops = parent->loops;
 141         td->verify = parent->verify;
 142         td->stonewall = parent->stonewall;
 143         td->numjobs = parent->numjobs;
 144         td->use_thread = parent->use_thread;
 145         td->use_mmap = parent->use_mmap;
 146         memcpy(&td->cpumask, &parent->cpumask, sizeof(td->cpumask));
 147
 148         return td;
 149 }
 150
 151 static void put_job(struct thread_data *td)
 152 {
 153         memset(&threads[td->thread_number - 1], 0, sizeof(*td));
 154         thread_number--;
 155 }
 156
 157 static int add_job(struct thread_data *td, const char *jobname, int prioclass,
 158                    int prio)
 159 {
 160         struct stat sb;
 161         int numjobs;
 162
 163         if (td == &def_thread)
 164                 return 0;
 165
 166 #ifndef FIO_HAVE_LIBAIO
 167         if (td->io_engine == FIO_LIBAIO) {
 168                 fprintf(stderr, "Linux libaio not available\n");
 169                 return 1;
 170         }
 171 #endif
 172 #ifndef FIO_HAVE_POSIXAIO
 173         if (td->io_engine == FIO_POSIXAIO) {
 174                 fprintf(stderr, "posix aio not available\n");
 175                 return 1;
 176         }
 177 #endif
 178
 179         td->filetype = FIO_TYPE_FILE;
 180         if (!stat(jobname, &sb) && S_ISBLK(sb.st_mode))
 181                 td->filetype = FIO_TYPE_BD;
 182
 183         if (td->filetype == FIO_TYPE_FILE) {
 184                 if (td->directory[0] != '\0')
 185                         sprintf(td->file_name, "%s/%s.%d", td->directory, jobname, td->thread_number);
 186                 else
 187                         sprintf(td->file_name, "%s.%d", jobname, td->thread_number);
 188         } else
 189                 strcpy(td->file_name, jobname);
 190
 191         sem_init(&td->mutex, 1, 0);
 192         td->ioprio = (prioclass << IOPRIO_CLASS_SHIFT) | prio;
 193
 194         td->clat_stat.min_val = ULONG_MAX;
 195         td->slat_stat.min_val = ULONG_MAX;
 196         td->bw_stat.min_val = ULONG_MAX;
 197
 198         run_str[td->thread_number - 1] = 'P';
 199
 200         if (td->io_engine != FIO_SYNCIO) {
 201                 if (!td->aio_depth)
 202                         td->aio_depth = 1;
 203                 if (td->use_mmap)
 204                         td->use_mmap = 0;
 205         }
 206
 207         if (td->min_bs == -1U)
 208                 td->min_bs = td->bs;
 209         if (td->max_bs == -1U)
 210                 td->max_bs = td->bs;
 211         if (td_read(td))
 212                 td->verify = 0;
 213
 214         if (td->stonewall && td->thread_number > 1)
 215                 groupid++;
 216
 217         td->groupid = groupid;
 218
 219         if (setup_rate(td))
 220                 goto err;
 221
 222         if (write_lat_log)
 223                 setup_log(&td->lat_log);
 224         if (write_bw_log)
 225                 setup_log(&td->bw_log);
 226
 227         printf("Client%d (g=%d): rw=%d, prio=%d/%d, seq=%d, odir=%d, mmap=%d, bs=%d-%d, rate=%d, ioengine=%d, aio_depth=%d\n", td->thread_number, td->groupid, td->ddir, prioclass, prio, td->sequential, td->odirect, td->use_mmap, td->min_bs, td->max_bs, td->rate, td->io_engine, td->aio_depth);
 228
 229         /*
 230          * recurse add identical jobs, clear numjobs and stonewall options
 231          * as they don't apply to sub-jobs
 232          */
 233         numjobs = td->numjobs;
 234         while (--numjobs) {
 235                 struct thread_data *td_new = get_new_job(0, td);
 236
 237                 if (!td_new)
 238                         goto err;
 239
 240                 td_new->numjobs = 1;
 241                 td_new->stonewall = 0;
 242
 243                 if (add_job(td_new, jobname, prioclass, prio))
 244                         goto err;
 245         }
 246         return 0;
 247 err:
 248         put_job(td);
 249         return -1;
 250 }
 251
 252 int init_random_state(struct thread_data *td)
 253 {
 254         unsigned long seed;
 255         int fd, num_maps, blocks;
 256
 257         fd = open("/dev/random", O_RDONLY);
 258         if (fd == -1) {
 259                 td_verror(td, errno);
 260                 return 1;
 261         }
 262
 263         if (read(fd, &seed, sizeof(seed)) < (int) sizeof(seed)) {
 264                 td_verror(td, EIO);
 265                 close(fd);
 266                 return 1;
 267         }
 268
 269         close(fd);
 270
 271         srand48_r(seed, &td->bsrange_state);
 272         srand48_r(seed, &td->verify_state);
 273
 274         if (td->sequential)
 275                 return 0;
 276
 277         if (repeatable)
 278                 seed = DEF_RANDSEED;
 279
 280         blocks = (td->io_size + td->min_bs - 1) / td->min_bs;
 281         num_maps = blocks / BLOCKS_PER_MAP;
 282         td->file_map = malloc(num_maps * sizeof(long));
 283         td->num_maps = num_maps;
 284         memset(td->file_map, 0, num_maps * sizeof(long));
 285
 286         srand48_r(seed, &td->random_state);
 287         return 0;
 288 }
 289
 290 static void fill_cpu_mask(cpu_set_t cpumask, int cpu)
 291 {
 292 #ifdef FIO_HAVE_CPU_AFFINITY
 293         unsigned int i;
 294
 295         CPU_ZERO(&cpumask);
 296
 297         for (i = 0; i < sizeof(int) * 8; i++) {
 298                 if ((1 << i) & cpu)
 299                         CPU_SET(i, &cpumask);
 300         }
 301 #endif
 302 }
 303
 304 static unsigned long get_mult(char c)
 305 {
 306         switch (c) {
 307                 case 'k':
 308                 case 'K':
 309                         return 1024;
 310                 case 'm':
 311                 case 'M':
 312                         return 1024 * 1024;
 313                 case 'g':
 314                 case 'G':
 315                         return 1024 * 1024 * 1024;
 316                 default:
 317                         return 1;
 318         }
 319 }
 320
 321 /*
 322  * convert string after '=' into decimal value, noting any size suffix
 323  */
 324 static int str_cnv(char *p, unsigned long long *val)
 325 {
 326         char *str;
 327         int len;
 328
 329         str = strstr(p, "=");
 330         if (!str)
 331                 return 1;
 332
 333         str++;
 334         len = strlen(str);
 335
 336         *val = strtoul(str, NULL, 10);
 337         if (*val == ULONG_MAX && errno == ERANGE)
 338                 return 1;
 339
 340         *val *= get_mult(str[len - 2]);
 341         return 0;
 342 }
 343
 344 static int check_strcnv(char *p, char *name, unsigned long long *val)
 345 {
 346         if (!strstr(p, name))
 347                 return 1;
 348
 349         return str_cnv(p, val);
 350 }
 351
 352 static void strip_blank_front(char **p)
 353 {
 354         char *s = *p;
 355
 356         while (isblank(*s))
 357                 s++;
 358 }
 359
 360 static void strip_blank_end(char *p)
 361 {
 362         while (isblank(*p)) {
 363                 *p = '\0';
 364                 p--;
 365         }
 366 }
 367
 368 typedef int (str_cb_fn)(struct thread_data *, char *);
 369
 370 static int check_str(char *p, char *name, str_cb_fn *cb, struct thread_data *td)
 371 {
 372         char *s = strstr(p, name);
 373
 374         if (!s)
 375                 return 1;
 376
 377         s = strstr(s, "=");
 378         if (!s)
 379                 return 1;
 380
 381         s++;
 382         strip_blank_front(&s);
 383         return cb(td, s);
 384 }
 385
 386 static int check_strstore(char *p, char *name, char *dest)
 387 {
 388         char *s = strstr(p, name);
 389
 390         if (!s)
 391                 return 1;
 392
 393         s = strstr(p, "=");
 394         if (!s)
 395                 return 1;
 396
 397         s++;
 398         strip_blank_front(&s);
 399
 400         strcpy(dest, s);
 401
 402         s = dest + strlen(dest) - 1;
 403         strip_blank_end(s);
 404         return 0;
 405 }
 406
 407 static int check_range(char *p, char *name, unsigned long *s, unsigned long *e)
 408 {
 409         char str[128];
 410         char s1, s2;
 411
 412         sprintf(str, "%s=%%lu%%c-%%lu%%c", name);
 413         if (sscanf(p, str, s, &s1, e, &s2) == 4) {
 414                 *s *= get_mult(s1);
 415                 *e *= get_mult(s2);
 416                 return 0;
 417         }
 418
 419         sprintf(str, "%s = %%lu%%c-%%lu%%c", name);
 420         if (sscanf(p, str, s, &s1, e, &s2) == 4) {
 421                 *s *= get_mult(s1);
 422                 *e *= get_mult(s2);
 423                 return 0;
 424         }
 425
 426         sprintf(str, "%s=%%lu-%%lu", name);
 427         if (sscanf(p, str, s, e) == 2)
 428                 return 0;
 429
 430         sprintf(str, "%s = %%lu-%%lu", name);
 431         if (sscanf(p, str, s, e) == 2)
 432                 return 0;
 433
 434         return 1;
 435
 436 }
 437
 438 static int check_int(char *p, char *name, unsigned int *val)
 439 {
 440         char str[128];
 441
 442         sprintf(str, "%s=%%d", name);
 443         if (sscanf(p, str, val) == 1)
 444                 return 0;
 445
 446         sprintf(str, "%s = %%d", name);
 447         if (sscanf(p, str, val) == 1)
 448                 return 0;
 449
 450         return 1;
 451 }
 452
 453 static int check_strset(char *p, char *name)
 454 {
 455         return strncmp(p, name, strlen(name));
 456 }
 457
 458 static int is_empty_or_comment(char *line)
 459 {
 460         unsigned int i;
 461
 462         for (i = 0; i < strlen(line); i++) {
 463                 if (line[i] == ';')
 464                         return 1;
 465                 if (!isspace(line[i]) && !iscntrl(line[i]))
 466                         return 0;
 467         }
 468
 469         return 1;
 470 }
 471
 472 static int str_rw_cb(struct thread_data *td, char *mem)
 473 {
 474         if (!strncmp(mem, "read", 4) || !strncmp(mem, "0", 1)) {
 475                 td->ddir = DDIR_READ;
 476                 td->sequential = 1;
 477                 return 0;
 478         } else if (!strncmp(mem, "randread", 8)) {
 479                 td->ddir = DDIR_READ;
 480                 td->sequential = 0;
 481                 return 0;
 482         } else if (!strncmp(mem, "write", 5) || !strncmp(mem, "1", 1)) {
 483                 td->ddir = DDIR_WRITE;
 484                 td->sequential = 1;
 485                 return 0;
 486         } else if (!strncmp(mem, "randwrite", 9)) {
 487                 td->ddir = DDIR_WRITE;
 488                 td->sequential = 0;
 489                 return 0;
 490         }
 491
 492         fprintf(stderr, "bad data direction: %s\n", mem);
 493         return 1;
 494 }
 495
 496 static int str_verify_cb(struct thread_data *td, char *mem)
 497 {
 498         if (!strncmp(mem, "0", 1)) {
 499                 td->verify = VERIFY_NONE;
 500                 return 0;
 501         } else if (!strncmp(mem, "md5", 3) || !strncmp(mem, "1", 1)) {
 502                 td->verify = VERIFY_MD5;
 503                 return 0;
 504         } else if (!strncmp(mem, "crc32", 5)) {
 505                 td->verify = VERIFY_CRC32;
 506                 return 0;
 507         }
 508
 509         fprintf(stderr, "bad verify type: %s\n", mem);
 510         return 1;
 511 }
 512
 513 static int str_mem_cb(struct thread_data *td, char *mem)
 514 {
 515         if (!strncmp(mem, "malloc", 6)) {
 516                 td->mem_type = MEM_MALLOC;
 517                 return 0;
 518         } else if (!strncmp(mem, "shm", 3)) {
 519                 td->mem_type = MEM_SHM;
 520                 return 0;
 521         } else if (!strncmp(mem, "mmap", 4)) {
 522                 td->mem_type = MEM_MMAP;
 523                 return 0;
 524         }
 525
 526         fprintf(stderr, "bad mem type: %s\n", mem);
 527         return 1;
 528 }
 529
 530 static int str_ioengine_cb(struct thread_data *td, char *str)
 531 {
 532         if (!strncmp(str, "linuxaio", 8) || !strncmp(str, "aio", 3)) {
 533                 td->io_engine = FIO_LIBAIO;
 534                 return 0;
 535         } else if (!strncmp(str, "posixaio", 8)) {
 536                 td->io_engine = FIO_POSIXAIO;
 537                 return 0;
 538         } else if (!strncmp(str, "sync", 4)) {
 539                 td->io_engine = FIO_SYNCIO;
 540                 return 0;
 541         }
 542
 543         fprintf(stderr, "bad ioengine type: %s\n", str);
 544         return 1;
 545 }
 546
 547
 548 int parse_jobs_ini(char *file)
 549 {
 550         unsigned int prioclass, prio, cpu, global;
 551         unsigned long long ull;
 552         unsigned long ul1, ul2;
 553         struct thread_data *td;
 554         char *string, *name;
 555         fpos_t off;
 556         FILE *f;
 557         char *p;
 558
 559         f = fopen(file, "r");
 560         if (!f) {
 561                 perror("fopen");
 562                 return 1;
 563         }
 564
 565         string = malloc(4096);
 566         name = malloc(256);
 567
 568         while ((p = fgets(string, 4096, f)) != NULL) {
 569                 if (is_empty_or_comment(p))
 570                         continue;
 571                 if (sscanf(p, "[%s]", name) != 1)
 572                         continue;
 573
 574                 global = !strncmp(name, "global", 6);
 575
 576                 name[strlen(name) - 1] = '\0';
 577
 578                 td = get_new_job(global, &def_thread);
 579                 if (!td)
 580                         return 1;
 581
 582                 prioclass = 2;
 583                 prio = 4;
 584
 585                 fgetpos(f, &off);
 586                 while ((p = fgets(string, 4096, f)) != NULL) {
 587                         if (is_empty_or_comment(p))
 588                                 continue;
 589                         if (strstr(p, "["))
 590                                 break;
 591                         if (!check_int(p, "prio", &prio)) {
 592                                 fgetpos(f, &off);
 593                                 continue;
 594                         }
 595                         if (!check_int(p, "prioclass", &prioclass)) {
 596                                 fgetpos(f, &off);
 597                                 continue;
 598                         }
 599                         if (!check_int(p, "direct", &td->odirect)) {
 600                                 fgetpos(f, &off);
 601                                 continue;
 602                         }
 603                         if (!check_int(p, "rate", &td->rate)) {
 604                                 fgetpos(f, &off);
 605                                 continue;
 606                         }
 607                         if (!check_int(p, "ratemin", &td->ratemin)) {
 608                                 fgetpos(f, &off);
 609                                 continue;
 610                         }
 611                         if (!check_int(p, "ratecycle", &td->ratecycle)) {
 612                                 fgetpos(f, &off);
 613                                 continue;
 614                         }
 615                         if (!check_int(p, "thinktime", &td->thinktime)) {
 616                                 fgetpos(f, &off);
 617                                 continue;
 618                         }
 619                         if (!check_int(p, "cpumask", &cpu)) {
 620 #ifndef FIO_HAVE_CPU_AFFINITY
 621                                 fprintf(stderr, "cpu affinity not available\n");
 622                                 return 1;
 623 #endif
 624                                 fill_cpu_mask(td->cpumask, cpu);
 625                                 fgetpos(f, &off);
 626                                 continue;
 627                         }
 628                         if (!check_int(p, "fsync", &td->fsync_blocks)) {
 629                                 fgetpos(f, &off);
 630                                 continue;
 631                         }
 632                         if (!check_int(p, "startdelay", &td->start_delay)) {
 633                                 fgetpos(f, &off);
 634                                 continue;
 635                         }
 636                         if (!check_int(p, "timeout", &td->timeout)) {
 637                                 fgetpos(f, &off);
 638                                 continue;
 639                         }
 640                         if (!check_int(p, "invalidate",&td->invalidate_cache)) {
 641                                 fgetpos(f, &off);
 642                                 continue;
 643                         }
 644                         if (!check_int(p, "aio_depth", &td->aio_depth)) {
 645                                 fgetpos(f, &off);
 646                                 continue;
 647                         }
 648                         if (!check_int(p, "sync", &td->sync_io)) {
 649                                 fgetpos(f, &off);
 650                                 continue;
 651                         }
 652                         if (!check_int(p, "bwavgtime", &td->bw_avg_time)) {
 653                                 fgetpos(f, &off);
 654                                 continue;
 655                         }
 656                         if (!check_int(p, "create_serialize", &td->create_serialize)) {
 657                                 fgetpos(f, &off);
 658                                 continue;
 659                         }
 660                         if (!check_int(p, "create_fsync", &td->create_fsync)) {
 661                                 fgetpos(f, &off);
 662                                 continue;
 663                         }
 664                         if (!check_int(p, "loops", &td->loops)) {
 665                                 fgetpos(f, &off);
 666                                 continue;
 667                         }
 668                         if (!check_int(p, "numjobs", &td->numjobs)) {
 669                                 fgetpos(f, &off);
 670                                 continue;
 671                         }
 672                         if (!check_int(p, "mmap", &td->use_mmap)) {
 673                                 fgetpos(f, &off);
 674                                 continue;
 675                         }
 676                         if (!check_int(p, "overwrite", &td->overwrite)) {
 677                                 fgetpos(f, &off);
 678                                 continue;
 679                         }
 680                         if (!check_range(p, "bsrange", &ul1, &ul2)) {
 681                                 if (ul1 & 511)
 682                                         printf("bad min block size, must be a multiple of 512\n");
 683                                 else
 684                                         td->min_bs = ul1;
 685                                 if (ul2 & 511)
 686                                         printf("bad max block size, must be a multiple of 512\n");
 687                                 else
 688                                         td->max_bs = ul2;
 689                                 fgetpos(f, &off);
 690                                 continue;
 691                         }
 692                         if (!check_strcnv(p, "bs", &ull)) {
 693                                 if (ull & 511)
 694                                         printf("bad block size, must be a multiple of 512\n");
 695                                 else
 696                                         td->bs = ull;
 697                                 fgetpos(f, &off);
 698                                 continue;
 699                         }
 700                         if (!check_strcnv(p, "size", &td->file_size)) {
 701                                 fgetpos(f, &off);
 702                                 continue;
 703                         }
 704                         if (!check_strcnv(p, "offset", &td->file_offset)) {
 705                                 fgetpos(f, &off);
 706                                 continue;
 707                         }
 708                         if (!check_strstore(p, "directory", td->directory)) {
 709                                 fgetpos(f, &off);
 710                                 continue;
 711                         }
 712                         if (!check_str(p, "mem", str_mem_cb, td)) {
 713                                 fgetpos(f, &off);
 714                                 continue;
 715                         }
 716                         if (!check_str(p, "verify", str_verify_cb, td)) {
 717                                 fgetpos(f, &off);
 718                                 continue;
 719                         }
 720                         if (!check_str(p, "rw", str_rw_cb, td)) {
 721                                 fgetpos(f, &off);
 722                                 continue;
 723                         }
 724                         if (!check_str(p, "ioengine", str_ioengine_cb, td)) {
 725                                 fgetpos(f, &off);
 726                                 continue;
 727                         }
 728                         if (!check_strset(p, "create")) {
 729                                 td->create_file = 1;
 730                                 fgetpos(f, &off);
 731                                 continue;
 732                         }
 733                         if (!check_strset(p, "exitall")) {
 734                                 exitall_on_terminate = 1;
 735                                 fgetpos(f, &off);
 736                                 continue;
 737                         }
 738                         if (!check_strset(p, "stonewall")) {
 739                                 td->stonewall = 1;
 740                                 fgetpos(f, &off);
 741                                 continue;
 742                         }
 743                         if (!check_strset(p, "thread")) {
 744                                 td->use_thread = 1;
 745                                 fgetpos(f, &off);
 746                                 continue;
 747                         }
 748
 749                         printf("Client%d: bad option %s\n",td->thread_number,p);
 750                 }
 751                 fsetpos(f, &off);
 752
 753                 if (add_job(td, name, prioclass, prio))
 754                         return 1;
 755         }
 756
 757         free(string);
 758         free(name);
 759         fclose(f);
 760         return 0;
 761 }
 762
 763 static int fill_def_thread(void)
 764 {
 765         memset(&def_thread, 0, sizeof(def_thread));
 766
 767         if (fio_getaffinity(getpid(), &def_thread.cpumask) == -1) {
 768                 perror("sched_getaffinity");
 769                 return 1;
 770         }
 771
 772         /*
 773          * fill globals
 774          */
 775         def_thread.ddir = DDIR_READ;
 776         def_thread.bs = DEF_BS;
 777         def_thread.min_bs = -1;
 778         def_thread.max_bs = -1;
 779         def_thread.io_engine = DEF_IO_ENGINE;
 780         def_thread.odirect = DEF_ODIRECT;
 781         def_thread.ratecycle = DEF_RATE_CYCLE;
 782         def_thread.sequential = DEF_SEQUENTIAL;
 783         def_thread.timeout = DEF_TIMEOUT;
 784         def_thread.create_file = DEF_CREATE;
 785         def_thread.overwrite = DEF_OVERWRITE;
 786         def_thread.invalidate_cache = DEF_INVALIDATE;
 787         def_thread.sync_io = DEF_SYNCIO;
 788         def_thread.mem_type = MEM_MALLOC;
 789         def_thread.bw_avg_time = DEF_BWAVGTIME;
 790         def_thread.create_serialize = DEF_CREATE_SER;
 791         def_thread.create_fsync = DEF_CREATE_FSYNC;
 792         def_thread.loops = DEF_LOOPS;
 793         def_thread.verify = DEF_VERIFY;
 794         def_thread.stonewall = DEF_STONEWALL;
 795         def_thread.numjobs = DEF_NUMJOBS;
 796         def_thread.use_thread = DEF_USE_THREAD;
 797         def_thread.use_mmap = DEF_USE_MMAP;
 798 #ifdef FIO_HAVE_DISK_UTIL
 799         def_thread.do_disk_util = 1;
 800 #endif
 801
 802         return 0;
 803 }
 804
 805 static void parse_cmd_line(int argc, char *argv[])
 806 {
 807         int c;
 808
 809         while ((c = getopt(argc, argv, "s:b:t:r:R:o:f:lw")) != EOF) {
 810                 switch (c) {
 811                         case 's':
 812                                 def_thread.sequential = !!atoi(optarg);
 813                                 break;
 814                         case 'b':
 815                                 def_thread.bs = atoi(optarg);
 816                                 def_thread.bs <<= 10;
 817                                 if (!def_thread.bs) {
 818                                         printf("bad block size\n");
 819                                         def_thread.bs = DEF_BS;
 820                                 }
 821                                 break;
 822                         case 't':
 823                                 def_thread.timeout = atoi(optarg);
 824                                 break;
 825                         case 'r':
 826                                 repeatable = !!atoi(optarg);
 827                                 break;
 828                         case 'R':
 829                                 rate_quit = !!atoi(optarg);
 830                                 break;
 831                         case 'o':
 832                                 def_thread.odirect = !!atoi(optarg);
 833                                 break;
 834                         case 'f':
 835                                 ini_file = strdup(optarg);
 836                                 break;
 837                         case 'l':
 838                                 write_lat_log = 1;
 839                                 break;
 840                         case 'w':
 841                                 write_bw_log = 1;
 842                                 break;
 843                 }
 844         }
 845 }
 846
 847 static void free_shm(void)
 848 {
 849         struct shmid_ds sbuf;
 850
 851         if (threads) {
 852                 shmdt(threads);
 853                 threads = NULL;
 854                 shmctl(shm_id, IPC_RMID, &sbuf);
 855         }
 856 }
 857
 858 static int setup_thread_area(void)
 859 {
 860         /*
 861          * 1024 is too much on some machines, scale max_jobs if
 862          * we get a failure that looks like too large a shm segment
 863          */
 864         do {
 865                 int s = max_jobs * sizeof(struct thread_data);
 866
 867                 shm_id = shmget(0, s, IPC_CREAT | 0600);
 868                 if (shm_id != -1)
 869                         break;
 870                 if (errno != EINVAL) {
 871                         perror("shmget");
 872                         break;
 873                 }
 874
 875                 max_jobs >>= 1;
 876         } while (max_jobs);
 877
 878         if (shm_id == -1)
 879                 return 1;
 880
 881         threads = shmat(shm_id, NULL, 0);
 882         if (threads == (void *) -1) {
 883                 perror("shmat");
 884                 return 1;
 885         }
 886
 887         atexit(free_shm);
 888         return 0;
 889 }
 890
 891 int parse_options(int argc, char *argv[])
 892 {
 893         if (setup_thread_area())
 894                 return 1;
 895         if (fill_def_thread())
 896                 return 1;
 897
 898         parse_cmd_line(argc, argv);
 899
 900         if (!ini_file) {
 901                 printf("Need job file\n");
 902                 return 1;
 903         }
 904
 905         if (parse_jobs_ini(ini_file))
 906                 return 1;
 907
 908         return 0;
 909 }