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
  38 static char fio_version_string[] = "fio 1.1";
  39
  40 static int repeatable = DEF_RAND_REPEAT;
  41 static char *ini_file;
  42 static int max_jobs = MAX_JOBS;
  43
  44 struct thread_data def_thread;
  45 struct thread_data *threads = NULL;
  46
  47 int rate_quit = 0;
  48 int write_lat_log = 0;
  49 int write_bw_log = 0;
  50 int exitall_on_terminate = 0;
  51
  52 static int setup_rate(struct thread_data *td)
  53 {
  54         int nr_reads_per_sec;
  55
  56         if (!td->rate)
  57                 return 0;
  58
  59         if (td->rate < td->ratemin) {
  60                 fprintf(stderr, "min rate larger than nominal rate\n");
  61                 return -1;
  62         }
  63
  64         nr_reads_per_sec = (td->rate * 1024) / td->min_bs;
  65         td->rate_usec_cycle = 1000000 / nr_reads_per_sec;
  66         td->rate_pending_usleep = 0;
  67         return 0;
  68 }
  69
  70 static void setup_log(struct io_log **log)
  71 {
  72         struct io_log *l = malloc(sizeof(*l));
  73
  74         l->nr_samples = 0;
  75         l->max_samples = 1024;
  76         l->log = malloc(l->max_samples * sizeof(struct io_sample));
  77         *log = l;
  78 }
  79
  80 void finish_log(struct thread_data *td, struct io_log *log, const char *name)
  81 {
  82         char file_name[128];
  83         FILE *f;
  84         unsigned int i;
  85
  86         sprintf(file_name, "client%d_%s.log", td->thread_number, name);
  87         f = fopen(file_name, "w");
  88         if (!f) {
  89                 perror("fopen log");
  90                 return;
  91         }
  92
  93         for (i = 0; i < log->nr_samples; i++)
  94                 fprintf(f, "%lu, %lu, %u\n", log->log[i].time, log->log[i].val, log->log[i].ddir);
  95
  96         fclose(f);
  97         free(log->log);
  98         free(log);
  99 }
 100
 101 static struct thread_data *get_new_job(int global, struct thread_data *parent)
 102 {
 103         struct thread_data *td;
 104
 105         if (global)
 106                 return &def_thread;
 107         if (thread_number >= max_jobs)
 108                 return NULL;
 109
 110         td = &threads[thread_number++];
 111         memset(td, 0, sizeof(*td));
 112
 113         td->fd = -1;
 114         td->thread_number = thread_number;
 115
 116         td->ddir = parent->ddir;
 117         td->ioprio = parent->ioprio;
 118         td->sequential = parent->sequential;
 119         td->bs = parent->bs;
 120         td->min_bs = parent->min_bs;
 121         td->max_bs = parent->max_bs;
 122         td->odirect = parent->odirect;
 123         td->thinktime = parent->thinktime;
 124         td->fsync_blocks = parent->fsync_blocks;
 125         td->start_delay = parent->start_delay;
 126         td->timeout = parent->timeout;
 127         td->io_engine = parent->io_engine;
 128         td->create_file = parent->create_file;
 129         td->overwrite = parent->overwrite;
 130         td->invalidate_cache = parent->invalidate_cache;
 131         td->file_size = parent->file_size;
 132         td->file_offset = parent->file_offset;
 133         td->rate = parent->rate;
 134         td->ratemin = parent->ratemin;
 135         td->ratecycle = parent->ratecycle;
 136         td->iodepth = parent->iodepth;
 137         td->sync_io = parent->sync_io;
 138         td->mem_type = parent->mem_type;
 139         td->bw_avg_time = parent->bw_avg_time;
 140         td->create_serialize = parent->create_serialize;
 141         td->create_fsync = parent->create_fsync;
 142         td->loops = parent->loops;
 143         td->verify = parent->verify;
 144         td->stonewall = parent->stonewall;
 145         td->numjobs = parent->numjobs;
 146         td->use_thread = parent->use_thread;
 147         td->do_disk_util = parent->do_disk_util;
 148         memcpy(&td->cpumask, &parent->cpumask, sizeof(td->cpumask));
 149         strcpy(td->io_engine_name, parent->io_engine_name);
 150
 151         return td;
 152 }
 153
 154 static void put_job(struct thread_data *td)
 155 {
 156         memset(&threads[td->thread_number - 1], 0, sizeof(*td));
 157         thread_number--;
 158 }
 159
 160 static int add_job(struct thread_data *td, const char *jobname, int prioclass,
 161                    int prio)
 162 {
 163         char *ddir_str[] = { "read", "write", "randread", "randwrite" };
 164         struct stat sb;
 165         int numjobs, ddir;
 166
 167 #ifndef FIO_HAVE_LIBAIO
 168         if (td->io_engine == FIO_LIBAIO) {
 169                 fprintf(stderr, "Linux libaio not available\n");
 170                 return 1;
 171         }
 172 #endif
 173 #ifndef FIO_HAVE_POSIXAIO
 174         if (td->io_engine == FIO_POSIXAIO) {
 175                 fprintf(stderr, "posix aio not available\n");
 176                 return 1;
 177         }
 178 #endif
 179 #ifdef FIO_HAVE_IOPRIO
 180         td->ioprio = (prioclass << IOPRIO_CLASS_SHIFT) | prio;
 181 #endif
 182
 183         /*
 184          * the def_thread is just for options, it's not a real job
 185          */
 186         if (td == &def_thread)
 187                 return 0;
 188
 189         if (td->io_engine & FIO_SYNCIO)
 190                 td->iodepth = 1;
 191         else {
 192                 if (!td->iodepth)
 193                         td->iodepth = 1;
 194         }
 195
 196         td->filetype = FIO_TYPE_FILE;
 197         if (!stat(jobname, &sb) && S_ISBLK(sb.st_mode))
 198                 td->filetype = FIO_TYPE_BD;
 199
 200         if (td->filetype == FIO_TYPE_FILE) {
 201                 if (td->directory[0] != '\0')
 202                         sprintf(td->file_name, "%s/%s.%d", td->directory, jobname, td->thread_number);
 203                 else
 204                         sprintf(td->file_name, "%s.%d", jobname, td->thread_number);
 205         } else
 206                 strcpy(td->file_name, jobname);
 207
 208         sem_init(&td->mutex, 0, 0);
 209
 210         td->clat_stat[0].min_val = td->clat_stat[1].min_val = ULONG_MAX;
 211         td->slat_stat[0].min_val = td->slat_stat[1].min_val = ULONG_MAX;
 212         td->bw_stat[0].min_val = td->bw_stat[1].min_val = ULONG_MAX;
 213
 214         if (td->min_bs == -1U)
 215                 td->min_bs = td->bs;
 216         if (td->max_bs == -1U)
 217                 td->max_bs = td->bs;
 218         if (td_read(td))
 219                 td->verify = 0;
 220
 221         if (td->stonewall && td->thread_number > 1)
 222                 groupid++;
 223
 224         td->groupid = groupid;
 225
 226         if (setup_rate(td))
 227                 goto err;
 228
 229         if (write_lat_log) {
 230                 setup_log(&td->slat_log);
 231                 setup_log(&td->clat_log);
 232         }
 233         if (write_bw_log)
 234                 setup_log(&td->bw_log);
 235
 236         ddir = td->ddir + (!td->sequential << 1);
 237         printf("Client%d (g=%d): rw=%s, prio=%d/%d, odir=%d, bs=%d-%d, rate=%d, ioengine=%s, iodepth=%d\n", td->thread_number, td->groupid, ddir_str[ddir], prioclass, prio, td->odirect, td->min_bs, td->max_bs, td->rate, td->io_engine_name, td->iodepth);
 238
 239         /*
 240          * recurse add identical jobs, clear numjobs and stonewall options
 241          * as they don't apply to sub-jobs
 242          */
 243         numjobs = td->numjobs;
 244         while (--numjobs) {
 245                 struct thread_data *td_new = get_new_job(0, td);
 246
 247                 if (!td_new)
 248                         goto err;
 249
 250                 td_new->numjobs = 1;
 251                 td_new->stonewall = 0;
 252
 253                 if (add_job(td_new, jobname, prioclass, prio))
 254                         goto err;
 255         }
 256         return 0;
 257 err:
 258         put_job(td);
 259         return -1;
 260 }
 261
 262 int init_random_state(struct thread_data *td)
 263 {
 264         unsigned long seed;
 265         int fd, num_maps, blocks;
 266
 267         fd = open("/dev/random", O_RDONLY);
 268         if (fd == -1) {
 269                 td_verror(td, errno);
 270                 return 1;
 271         }
 272
 273         if (read(fd, &seed, sizeof(seed)) < (int) sizeof(seed)) {
 274                 td_verror(td, EIO);
 275                 close(fd);
 276                 return 1;
 277         }
 278
 279         close(fd);
 280
 281         srand48_r(seed, &td->bsrange_state);
 282         srand48_r(seed, &td->verify_state);
 283
 284         if (td->sequential)
 285                 return 0;
 286
 287         if (repeatable)
 288                 seed = DEF_RANDSEED;
 289
 290         blocks = (td->io_size + td->min_bs - 1) / td->min_bs;
 291         num_maps = blocks / BLOCKS_PER_MAP;
 292         td->file_map = malloc(num_maps * sizeof(long));
 293         td->num_maps = num_maps;
 294         memset(td->file_map, 0, num_maps * sizeof(long));
 295
 296         srand48_r(seed, &td->random_state);
 297         return 0;
 298 }
 299
 300 static void fill_cpu_mask(os_cpu_mask_t cpumask, int cpu)
 301 {
 302 #ifdef FIO_HAVE_CPU_AFFINITY
 303         unsigned int i;
 304
 305         CPU_ZERO(&cpumask);
 306
 307         for (i = 0; i < sizeof(int) * 8; i++) {
 308                 if ((1 << i) & cpu)
 309                         CPU_SET(i, &cpumask);
 310         }
 311 #endif
 312 }
 313
 314 static unsigned long get_mult(char c)
 315 {
 316         switch (c) {
 317                 case 'k':
 318                 case 'K':
 319                         return 1024;
 320                 case 'm':
 321                 case 'M':
 322                         return 1024 * 1024;
 323                 case 'g':
 324                 case 'G':
 325                         return 1024 * 1024 * 1024;
 326                 default:
 327                         return 1;
 328         }
 329 }
 330
 331 /*
 332  * convert string after '=' into decimal value, noting any size suffix
 333  */
 334 static int str_cnv(char *p, unsigned long long *val)
 335 {
 336         char *str;
 337         int len;
 338
 339         str = strstr(p, "=");
 340         if (!str)
 341                 return 1;
 342
 343         str++;
 344         len = strlen(str);
 345
 346         *val = strtoul(str, NULL, 10);
 347         if (*val == ULONG_MAX && errno == ERANGE)
 348                 return 1;
 349
 350         *val *= get_mult(str[len - 2]);
 351         return 0;
 352 }
 353
 354 static int check_strcnv(char *p, char *name, unsigned long long *val)
 355 {
 356         if (!strstr(p, name))
 357                 return 1;
 358
 359         return str_cnv(p, val);
 360 }
 361
 362 static void strip_blank_front(char **p)
 363 {
 364         char *s = *p;
 365
 366         while (isblank(*s))
 367                 s++;
 368 }
 369
 370 static void strip_blank_end(char *p)
 371 {
 372         while (isblank(*p)) {
 373                 *p = '\0';
 374                 p--;
 375         }
 376 }
 377
 378 typedef int (str_cb_fn)(struct thread_data *, char *);
 379
 380 static int check_str(char *p, char *name, str_cb_fn *cb, struct thread_data *td)
 381 {
 382         char *s = strstr(p, name);
 383
 384         if (!s)
 385                 return 1;
 386
 387         s = strstr(s, "=");
 388         if (!s)
 389                 return 1;
 390
 391         s++;
 392         strip_blank_front(&s);
 393         return cb(td, s);
 394 }
 395
 396 static int check_strstore(char *p, char *name, char *dest)
 397 {
 398         char *s = strstr(p, name);
 399
 400         if (!s)
 401                 return 1;
 402
 403         s = strstr(p, "=");
 404         if (!s)
 405                 return 1;
 406
 407         s++;
 408         strip_blank_front(&s);
 409
 410         strcpy(dest, s);
 411
 412         s = dest + strlen(dest) - 1;
 413         strip_blank_end(s);
 414         return 0;
 415 }
 416
 417 static int check_range(char *p, char *name, unsigned long *s, unsigned long *e)
 418 {
 419         char str[128];
 420         char s1, s2;
 421
 422         sprintf(str, "%s=%%lu%%c-%%lu%%c", name);
 423         if (sscanf(p, str, s, &s1, e, &s2) == 4) {
 424                 *s *= get_mult(s1);
 425                 *e *= get_mult(s2);
 426                 return 0;
 427         }
 428
 429         sprintf(str, "%s = %%lu%%c-%%lu%%c", name);
 430         if (sscanf(p, str, s, &s1, e, &s2) == 4) {
 431                 *s *= get_mult(s1);
 432                 *e *= get_mult(s2);
 433                 return 0;
 434         }
 435
 436         sprintf(str, "%s=%%lu-%%lu", name);
 437         if (sscanf(p, str, s, e) == 2)
 438                 return 0;
 439
 440         sprintf(str, "%s = %%lu-%%lu", name);
 441         if (sscanf(p, str, s, e) == 2)
 442                 return 0;
 443
 444         return 1;
 445
 446 }
 447
 448 static int check_int(char *p, char *name, unsigned int *val)
 449 {
 450         char str[128];
 451
 452         sprintf(str, "%s=%%d", name);
 453         if (sscanf(p, str, val) == 1)
 454                 return 0;
 455
 456         sprintf(str, "%s = %%d", name);
 457         if (sscanf(p, str, val) == 1)
 458                 return 0;
 459
 460         return 1;
 461 }
 462
 463 static int check_strset(char *p, char *name)
 464 {
 465         return strncmp(p, name, strlen(name));
 466 }
 467
 468 static int is_empty_or_comment(char *line)
 469 {
 470         unsigned int i;
 471
 472         for (i = 0; i < strlen(line); i++) {
 473                 if (line[i] == ';')
 474                         return 1;
 475                 if (!isspace(line[i]) && !iscntrl(line[i]))
 476                         return 0;
 477         }
 478
 479         return 1;
 480 }
 481
 482 static int str_rw_cb(struct thread_data *td, char *mem)
 483 {
 484         if (!strncmp(mem, "read", 4) || !strncmp(mem, "0", 1)) {
 485                 td->ddir = DDIR_READ;
 486                 td->sequential = 1;
 487                 return 0;
 488         } else if (!strncmp(mem, "randread", 8)) {
 489                 td->ddir = DDIR_READ;
 490                 td->sequential = 0;
 491                 return 0;
 492         } else if (!strncmp(mem, "write", 5) || !strncmp(mem, "1", 1)) {
 493                 td->ddir = DDIR_WRITE;
 494                 td->sequential = 1;
 495                 return 0;
 496         } else if (!strncmp(mem, "randwrite", 9)) {
 497                 td->ddir = DDIR_WRITE;
 498                 td->sequential = 0;
 499                 return 0;
 500         }
 501
 502         fprintf(stderr, "bad data direction: %s\n", mem);
 503         return 1;
 504 }
 505
 506 static int str_verify_cb(struct thread_data *td, char *mem)
 507 {
 508         if (!strncmp(mem, "0", 1)) {
 509                 td->verify = VERIFY_NONE;
 510                 return 0;
 511         } else if (!strncmp(mem, "md5", 3) || !strncmp(mem, "1", 1)) {
 512                 td->verify = VERIFY_MD5;
 513                 return 0;
 514         } else if (!strncmp(mem, "crc32", 5)) {
 515                 td->verify = VERIFY_CRC32;
 516                 return 0;
 517         }
 518
 519         fprintf(stderr, "bad verify type: %s\n", mem);
 520         return 1;
 521 }
 522
 523 static int str_mem_cb(struct thread_data *td, char *mem)
 524 {
 525         if (!strncmp(mem, "malloc", 6)) {
 526                 td->mem_type = MEM_MALLOC;
 527                 return 0;
 528         } else if (!strncmp(mem, "shm", 3)) {
 529                 td->mem_type = MEM_SHM;
 530                 return 0;
 531         } else if (!strncmp(mem, "mmap", 4)) {
 532                 td->mem_type = MEM_MMAP;
 533                 return 0;
 534         }
 535
 536         fprintf(stderr, "bad mem type: %s\n", mem);
 537         return 1;
 538 }
 539
 540 static int str_ioengine_cb(struct thread_data *td, char *str)
 541 {
 542         if (!strncmp(str, "linuxaio", 8) || !strncmp(str, "aio", 3) ||
 543             !strncmp(str, "libaio", 6)) {
 544                 strcpy(td->io_engine_name, "libaio");
 545                 td->io_engine = FIO_LIBAIO;
 546                 return 0;
 547         } else if (!strncmp(str, "posixaio", 8)) {
 548                 strcpy(td->io_engine_name, "posixaio");
 549                 td->io_engine = FIO_POSIXAIO;
 550                 return 0;
 551         } else if (!strncmp(str, "sync", 4)) {
 552                 strcpy(td->io_engine_name, "sync");
 553                 td->io_engine = FIO_SYNCIO;
 554                 return 0;
 555         } else if (!strncmp(str, "mmap", 4)) {
 556                 strcpy(td->io_engine_name, "mmap");
 557                 td->io_engine = FIO_MMAPIO;
 558                 return 0;
 559         } else if (!strncmp(str, "sgio", 4)) {
 560                 strcpy(td->io_engine_name, "sgio");
 561                 td->io_engine = FIO_SGIO;
 562                 return 0;
 563         }
 564
 565         fprintf(stderr, "bad ioengine type: %s\n", str);
 566         return 1;
 567 }
 568
 569
 570 int parse_jobs_ini(char *file)
 571 {
 572         unsigned int prioclass, prio, cpu, global;
 573         unsigned long long ull;
 574         unsigned long ul1, ul2;
 575         struct thread_data *td;
 576         char *string, *name;
 577         fpos_t off;
 578         FILE *f;
 579         char *p;
 580
 581         f = fopen(file, "r");
 582         if (!f) {
 583                 perror("fopen");
 584                 return 1;
 585         }
 586
 587         string = malloc(4096);
 588         name = malloc(256);
 589
 590         while ((p = fgets(string, 4096, f)) != NULL) {
 591                 if (is_empty_or_comment(p))
 592                         continue;
 593                 if (sscanf(p, "[%s]", name) != 1)
 594                         continue;
 595
 596                 global = !strncmp(name, "global", 6);
 597
 598                 name[strlen(name) - 1] = '\0';
 599
 600                 td = get_new_job(global, &def_thread);
 601                 if (!td)
 602                         return 1;
 603
 604                 prioclass = 2;
 605                 prio = 4;
 606
 607                 fgetpos(f, &off);
 608                 while ((p = fgets(string, 4096, f)) != NULL) {
 609                         if (is_empty_or_comment(p))
 610                                 continue;
 611                         if (strstr(p, "["))
 612                                 break;
 613                         if (!check_int(p, "prio", &prio)) {
 614 #ifndef FIO_HAVE_IOPRIO
 615                                 fprintf(stderr, "io priorities not available\n");
 616                                 return 1;
 617 #endif
 618                                 fgetpos(f, &off);
 619                                 continue;
 620                         }
 621                         if (!check_int(p, "prioclass", &prioclass)) {
 622 #ifndef FIO_HAVE_IOPRIO
 623                                 fprintf(stderr, "io priorities not available\n");
 624                                 return 1;
 625 #endif
 626                                 fgetpos(f, &off);
 627                                 continue;
 628                         }
 629                         if (!check_int(p, "direct", &td->odirect)) {
 630                                 fgetpos(f, &off);
 631                                 continue;
 632                         }
 633                         if (!check_int(p, "rate", &td->rate)) {
 634                                 fgetpos(f, &off);
 635                                 continue;
 636                         }
 637                         if (!check_int(p, "ratemin", &td->ratemin)) {
 638                                 fgetpos(f, &off);
 639                                 continue;
 640                         }
 641                         if (!check_int(p, "ratecycle", &td->ratecycle)) {
 642                                 fgetpos(f, &off);
 643                                 continue;
 644                         }
 645                         if (!check_int(p, "thinktime", &td->thinktime)) {
 646                                 fgetpos(f, &off);
 647                                 continue;
 648                         }
 649                         if (!check_int(p, "cpumask", &cpu)) {
 650 #ifndef FIO_HAVE_CPU_AFFINITY
 651                                 fprintf(stderr, "cpu affinity not available\n");
 652                                 return 1;
 653 #endif
 654                                 fill_cpu_mask(td->cpumask, cpu);
 655                                 fgetpos(f, &off);
 656                                 continue;
 657                         }
 658                         if (!check_int(p, "fsync", &td->fsync_blocks)) {
 659                                 fgetpos(f, &off);
 660                                 continue;
 661                         }
 662                         if (!check_int(p, "startdelay", &td->start_delay)) {
 663                                 fgetpos(f, &off);
 664                                 continue;
 665                         }
 666                         if (!check_int(p, "timeout", &td->timeout)) {
 667                                 fgetpos(f, &off);
 668                                 continue;
 669                         }
 670                         if (!check_int(p, "invalidate",&td->invalidate_cache)) {
 671                                 fgetpos(f, &off);
 672                                 continue;
 673                         }
 674                         if (!check_int(p, "iodepth", &td->iodepth)) {
 675                                 fgetpos(f, &off);
 676                                 continue;
 677                         }
 678                         if (!check_int(p, "sync", &td->sync_io)) {
 679                                 fgetpos(f, &off);
 680                                 continue;
 681                         }
 682                         if (!check_int(p, "bwavgtime", &td->bw_avg_time)) {
 683                                 fgetpos(f, &off);
 684                                 continue;
 685                         }
 686                         if (!check_int(p, "create_serialize", &td->create_serialize)) {
 687                                 fgetpos(f, &off);
 688                                 continue;
 689                         }
 690                         if (!check_int(p, "create_fsync", &td->create_fsync)) {
 691                                 fgetpos(f, &off);
 692                                 continue;
 693                         }
 694                         if (!check_int(p, "loops", &td->loops)) {
 695                                 fgetpos(f, &off);
 696                                 continue;
 697                         }
 698                         if (!check_int(p, "numjobs", &td->numjobs)) {
 699                                 fgetpos(f, &off);
 700                                 continue;
 701                         }
 702                         if (!check_int(p, "overwrite", &td->overwrite)) {
 703                                 fgetpos(f, &off);
 704                                 continue;
 705                         }
 706                         if (!check_range(p, "bsrange", &ul1, &ul2)) {
 707                                 if (ul1 > ul2) {
 708                                         td->max_bs = ul1;
 709                                         td->min_bs = ul2;
 710                                 } else {
 711                                         td->max_bs = ul2;
 712                                         td->min_bs = ul1;
 713                                 }
 714                                 fgetpos(f, &off);
 715                                 continue;
 716                         }
 717                         if (!check_strcnv(p, "bs", &ull)) {
 718                                 td->bs = ull;
 719                                 fgetpos(f, &off);
 720                                 continue;
 721                         }
 722                         if (!check_strcnv(p, "size", &td->file_size)) {
 723                                 fgetpos(f, &off);
 724                                 continue;
 725                         }
 726                         if (!check_strcnv(p, "offset", &td->file_offset)) {
 727                                 fgetpos(f, &off);
 728                                 continue;
 729                         }
 730                         if (!check_strstore(p, "directory", td->directory)) {
 731                                 fgetpos(f, &off);
 732                                 continue;
 733                         }
 734                         if (!check_str(p, "mem", str_mem_cb, td)) {
 735                                 fgetpos(f, &off);
 736                                 continue;
 737                         }
 738                         if (!check_str(p, "verify", str_verify_cb, td)) {
 739                                 fgetpos(f, &off);
 740                                 continue;
 741                         }
 742                         if (!check_str(p, "rw", str_rw_cb, td)) {
 743                                 fgetpos(f, &off);
 744                                 continue;
 745                         }
 746                         if (!check_str(p, "ioengine", str_ioengine_cb, td)) {
 747                                 fgetpos(f, &off);
 748                                 continue;
 749                         }
 750                         if (!check_strset(p, "create")) {
 751                                 td->create_file = 1;
 752                                 fgetpos(f, &off);
 753                                 continue;
 754                         }
 755                         if (!check_strset(p, "exitall")) {
 756                                 exitall_on_terminate = 1;
 757                                 fgetpos(f, &off);
 758                                 continue;
 759                         }
 760                         if (!check_strset(p, "stonewall")) {
 761                                 td->stonewall = 1;
 762                                 fgetpos(f, &off);
 763                                 continue;
 764                         }
 765                         if (!check_strset(p, "thread")) {
 766                                 td->use_thread = 1;
 767                                 fgetpos(f, &off);
 768                                 continue;
 769                         }
 770
 771                         printf("Client%d: bad option %s\n",td->thread_number,p);
 772                 }
 773                 fsetpos(f, &off);
 774
 775                 if (add_job(td, name, prioclass, prio))
 776                         return 1;
 777         }
 778
 779         free(string);
 780         free(name);
 781         fclose(f);
 782         return 0;
 783 }
 784
 785 static int fill_def_thread(void)
 786 {
 787         memset(&def_thread, 0, sizeof(def_thread));
 788
 789         if (fio_getaffinity(getpid(), &def_thread.cpumask) == -1) {
 790                 perror("sched_getaffinity");
 791                 return 1;
 792         }
 793
 794         /*
 795          * fill globals
 796          */
 797         def_thread.ddir = DDIR_READ;
 798         def_thread.bs = DEF_BS;
 799         def_thread.min_bs = -1;
 800         def_thread.max_bs = -1;
 801         def_thread.io_engine = DEF_IO_ENGINE;
 802         strcpy(def_thread.io_engine_name, DEF_IO_ENGINE_NAME);
 803         def_thread.odirect = DEF_ODIRECT;
 804         def_thread.ratecycle = DEF_RATE_CYCLE;
 805         def_thread.sequential = DEF_SEQUENTIAL;
 806         def_thread.timeout = DEF_TIMEOUT;
 807         def_thread.create_file = DEF_CREATE;
 808         def_thread.overwrite = DEF_OVERWRITE;
 809         def_thread.invalidate_cache = DEF_INVALIDATE;
 810         def_thread.sync_io = DEF_SYNCIO;
 811         def_thread.mem_type = MEM_MALLOC;
 812         def_thread.bw_avg_time = DEF_BWAVGTIME;
 813         def_thread.create_serialize = DEF_CREATE_SER;
 814         def_thread.create_fsync = DEF_CREATE_FSYNC;
 815         def_thread.loops = DEF_LOOPS;
 816         def_thread.verify = DEF_VERIFY;
 817         def_thread.stonewall = DEF_STONEWALL;
 818         def_thread.numjobs = DEF_NUMJOBS;
 819         def_thread.use_thread = DEF_USE_THREAD;
 820 #ifdef FIO_HAVE_DISK_UTIL
 821         def_thread.do_disk_util = 1;
 822 #endif
 823
 824         return 0;
 825 }
 826
 827 static void parse_cmd_line(int argc, char *argv[])
 828 {
 829         int c;
 830
 831         while ((c = getopt(argc, argv, "s:b:t:r:R:o:f:lwv")) != EOF) {
 832                 switch (c) {
 833                         case 's':
 834                                 def_thread.sequential = !!atoi(optarg);
 835                                 break;
 836                         case 'b':
 837                                 def_thread.bs = atoi(optarg);
 838                                 def_thread.bs <<= 10;
 839                                 if (!def_thread.bs) {
 840                                         printf("bad block size\n");
 841                                         def_thread.bs = DEF_BS;
 842                                 }
 843                                 break;
 844                         case 't':
 845                                 def_thread.timeout = atoi(optarg);
 846                                 break;
 847                         case 'r':
 848                                 repeatable = !!atoi(optarg);
 849                                 break;
 850                         case 'R':
 851                                 rate_quit = !!atoi(optarg);
 852                                 break;
 853                         case 'o':
 854                                 def_thread.odirect = !!atoi(optarg);
 855                                 break;
 856                         case 'f':
 857                                 ini_file = strdup(optarg);
 858                                 break;
 859                         case 'l':
 860                                 write_lat_log = 1;
 861                                 break;
 862                         case 'w':
 863                                 write_bw_log = 1;
 864                                 break;
 865                         case 'v':
 866                                 printf("%s\n", fio_version_string);
 867                                 exit(0);
 868                 }
 869         }
 870 }
 871
 872 static void free_shm(void)
 873 {
 874         struct shmid_ds sbuf;
 875
 876         if (threads) {
 877                 shmdt(threads);
 878                 threads = NULL;
 879                 shmctl(shm_id, IPC_RMID, &sbuf);
 880         }
 881 }
 882
 883 static int setup_thread_area(void)
 884 {
 885         /*
 886          * 1024 is too much on some machines, scale max_jobs if
 887          * we get a failure that looks like too large a shm segment
 888          */
 889         do {
 890                 int s = max_jobs * sizeof(struct thread_data);
 891
 892                 shm_id = shmget(0, s, IPC_CREAT | 0600);
 893                 if (shm_id != -1)
 894                         break;
 895                 if (errno != EINVAL) {
 896                         perror("shmget");
 897                         break;
 898                 }
 899
 900                 max_jobs >>= 1;
 901         } while (max_jobs);
 902
 903         if (shm_id == -1)
 904                 return 1;
 905
 906         threads = shmat(shm_id, NULL, 0);
 907         if (threads == (void *) -1) {
 908                 perror("shmat");
 909                 return 1;
 910         }
 911
 912         atexit(free_shm);
 913         return 0;
 914 }
 915
 916 int parse_options(int argc, char *argv[])
 917 {
 918         if (setup_thread_area())
 919                 return 1;
 920         if (fill_def_thread())
 921                 return 1;
 922
 923         parse_cmd_line(argc, argv);
 924
 925         if (!ini_file) {
 926                 printf("Need job file\n");
 927                 return 1;
 928         }
 929
 930         if (parse_jobs_ini(ini_file))
 931                 return 1;
 932
 933         return 0;
 934 }