fio-ini.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <unistd.h>
   4 #include <fcntl.h>
   5 #include <ctype.h>
   6 #include <string.h>
   7 #include <errno.h>
   8 #include <sys/ipc.h>
   9 #include <sys/shm.h>
  10 #include <sys/types.h>
  11 #include <sys/stat.h>
  12
  13 #include "fio.h"
  14
  15 #define DEF_BS                  (4096)
  16 #define DEF_TIMEOUT             (0)
  17 #define DEF_RATE_CYCLE          (1000)
  18 #define DEF_ODIRECT             (1)
  19 #define DEF_IO_ENGINE           (FIO_SYNCIO)
  20 #define DEF_IO_ENGINE_NAME      "sync"
  21 #define DEF_SEQUENTIAL          (1)
  22 #define DEF_RAND_REPEAT         (1)
  23 #define DEF_OVERWRITE           (1)
  24 #define DEF_CREATE              (1)
  25 #define DEF_INVALIDATE          (1)
  26 #define DEF_SYNCIO              (0)
  27 #define DEF_RANDSEED            (0xb1899bedUL)
  28 #define DEF_BWAVGTIME           (500)
  29 #define DEF_CREATE_SER          (1)
  30 #define DEF_CREATE_FSYNC        (1)
  31 #define DEF_LOOPS               (1)
  32 #define DEF_VERIFY              (0)
  33 #define DEF_STONEWALL           (0)
  34 #define DEF_NUMJOBS             (1)
  35 #define DEF_USE_THREAD          (0)
  36 #define DEF_FILE_SIZE           (1024 * 1024 * 1024UL)
  37 #define DEF_ZONE_SIZE           (0)
  38 #define DEF_ZONE_SKIP           (0)
  39
  40 static char fio_version_string[] = "fio 1.3";
  41
  42 static int repeatable = DEF_RAND_REPEAT;
  43 static char *ini_file;
  44 static int max_jobs = MAX_JOBS;
  45
  46 struct thread_data def_thread;
  47 struct thread_data *threads = NULL;
  48
  49 int rate_quit = 0;
  50 int write_lat_log = 0;
  51 int write_bw_log = 0;
  52 int exitall_on_terminate = 0;
  53
  54 static int setup_rate(struct thread_data *td)
  55 {
  56         int nr_reads_per_sec;
  57
  58         if (!td->rate)
  59                 return 0;
  60
  61         if (td->rate < td->ratemin) {
  62                 fprintf(stderr, "min rate larger than nominal rate\n");
  63                 return -1;
  64         }
  65
  66         nr_reads_per_sec = (td->rate * 1024) / td->min_bs;
  67         td->rate_usec_cycle = 1000000 / nr_reads_per_sec;
  68         td->rate_pending_usleep = 0;
  69         return 0;
  70 }
  71
  72 static void setup_log(struct io_log **log)
  73 {
  74         struct io_log *l = malloc(sizeof(*l));
  75
  76         l->nr_samples = 0;
  77         l->max_samples = 1024;
  78         l->log = malloc(l->max_samples * sizeof(struct io_sample));
  79         *log = l;
  80 }
  81
  82 void finish_log(struct thread_data *td, struct io_log *log, const char *name)
  83 {
  84         char file_name[128];
  85         FILE *f;
  86         unsigned int i;
  87
  88         sprintf(file_name, "client%d_%s.log", td->thread_number, name);
  89         f = fopen(file_name, "w");
  90         if (!f) {
  91                 perror("fopen log");
  92                 return;
  93         }
  94
  95         for (i = 0; i < log->nr_samples; i++)
  96                 fprintf(f, "%lu, %lu, %u\n", log->log[i].time, log->log[i].val, log->log[i].ddir);
  97
  98         fclose(f);
  99         free(log->log);
 100         free(log);
 101 }
 102
 103 static struct thread_data *get_new_job(int global, struct thread_data *parent)
 104 {
 105         struct thread_data *td;
 106
 107         if (global)
 108                 return &def_thread;
 109         if (thread_number >= max_jobs)
 110                 return NULL;
 111
 112         td = &threads[thread_number++];
 113         memset(td, 0, sizeof(*td));
 114
 115         td->fd = -1;
 116         td->thread_number = thread_number;
 117
 118         td->ddir = parent->ddir;
 119         td->ioprio = parent->ioprio;
 120         td->sequential = parent->sequential;
 121         td->bs = parent->bs;
 122         td->min_bs = parent->min_bs;
 123         td->max_bs = parent->max_bs;
 124         td->odirect = parent->odirect;
 125         td->thinktime = parent->thinktime;
 126         td->fsync_blocks = parent->fsync_blocks;
 127         td->start_delay = parent->start_delay;
 128         td->timeout = parent->timeout;
 129         td->io_engine = parent->io_engine;
 130         td->create_file = parent->create_file;
 131         td->overwrite = parent->overwrite;
 132         td->invalidate_cache = parent->invalidate_cache;
 133         td->file_size = parent->file_size;
 134         td->file_offset = parent->file_offset;
 135         td->zone_size = parent->zone_size;
 136         td->zone_skip = parent->zone_skip;
 137         td->rate = parent->rate;
 138         td->ratemin = parent->ratemin;
 139         td->ratecycle = parent->ratecycle;
 140         td->iodepth = parent->iodepth;
 141         td->sync_io = parent->sync_io;
 142         td->mem_type = parent->mem_type;
 143         td->bw_avg_time = parent->bw_avg_time;
 144         td->create_serialize = parent->create_serialize;
 145         td->create_fsync = parent->create_fsync;
 146         td->loops = parent->loops;
 147         td->verify = parent->verify;
 148         td->stonewall = parent->stonewall;
 149         td->numjobs = parent->numjobs;
 150         td->use_thread = parent->use_thread;
 151         td->do_disk_util = parent->do_disk_util;
 152         memcpy(&td->cpumask, &parent->cpumask, sizeof(td->cpumask));
 153         strcpy(td->io_engine_name, parent->io_engine_name);
 154
 155         return td;
 156 }
 157
 158 static void put_job(struct thread_data *td)
 159 {
 160         memset(&threads[td->thread_number - 1], 0, sizeof(*td));
 161         thread_number--;
 162 }
 163
 164 static int add_job(struct thread_data *td, const char *jobname, int prioclass,
 165                    int prio)
 166 {
 167         char *ddir_str[] = { "read", "write", "randread", "randwrite" };
 168         struct stat sb;
 169         int numjobs, ddir;
 170
 171 #ifndef FIO_HAVE_LIBAIO
 172         if (td->io_engine == FIO_LIBAIO) {
 173                 fprintf(stderr, "Linux libaio not available\n");
 174                 return 1;
 175         }
 176 #endif
 177 #ifndef FIO_HAVE_POSIXAIO
 178         if (td->io_engine == FIO_POSIXAIO) {
 179                 fprintf(stderr, "posix aio not available\n");
 180                 return 1;
 181         }
 182 #endif
 183 #ifdef FIO_HAVE_IOPRIO
 184         td->ioprio = (prioclass << IOPRIO_CLASS_SHIFT) | prio;
 185 #endif
 186
 187         /*
 188          * the def_thread is just for options, it's not a real job
 189          */
 190         if (td == &def_thread)
 191                 return 0;
 192
 193         if (td->io_engine & FIO_SYNCIO)
 194                 td->iodepth = 1;
 195         else {
 196                 if (!td->iodepth)
 197                         td->iodepth = 1;
 198         }
 199
 200         /*
 201          * only really works for sequential io for now
 202          */
 203         if (td->zone_size && !td->sequential)
 204                 td->zone_size = 0;
 205
 206         td->filetype = FIO_TYPE_FILE;
 207         if (!stat(jobname, &sb)) {
 208                 if (S_ISBLK(sb.st_mode))
 209                         td->filetype = FIO_TYPE_BD;
 210                 else if (S_ISCHR(sb.st_mode))
 211                         td->filetype = FIO_TYPE_CHAR;
 212         }
 213
 214         if (td->filetype == FIO_TYPE_FILE) {
 215                 if (td->directory[0] != '\0')
 216                         sprintf(td->file_name, "%s/%s.%d", td->directory, jobname, td->jobnum);
 217                 else
 218                         sprintf(td->file_name, "%s.%d", jobname, td->jobnum);
 219         } else
 220                 strcpy(td->file_name, jobname);
 221
 222         sem_init(&td->mutex, 0, 0);
 223
 224         td->clat_stat[0].min_val = td->clat_stat[1].min_val = ULONG_MAX;
 225         td->slat_stat[0].min_val = td->slat_stat[1].min_val = ULONG_MAX;
 226         td->bw_stat[0].min_val = td->bw_stat[1].min_val = ULONG_MAX;
 227
 228         if (td->min_bs == -1U)
 229                 td->min_bs = td->bs;
 230         if (td->max_bs == -1U)
 231                 td->max_bs = td->bs;
 232         if (td_read(td))
 233                 td->verify = 0;
 234
 235         if (td->stonewall && td->thread_number > 1)
 236                 groupid++;
 237
 238         td->groupid = groupid;
 239
 240         if (setup_rate(td))
 241                 goto err;
 242
 243         if (write_lat_log) {
 244                 setup_log(&td->slat_log);
 245                 setup_log(&td->clat_log);
 246         }
 247         if (write_bw_log)
 248                 setup_log(&td->bw_log);
 249
 250         ddir = td->ddir + (!td->sequential << 1);
 251         printf("Client%d (g=%d): rw=%s, prio=%d/%d, odir=%d, bs=%d-%d, rate=%d, ioengine=%s, iodepth=%d\n", td->thread_number, td->groupid, ddir_str[ddir], prioclass, prio, td->odirect, td->min_bs, td->max_bs, td->rate, td->io_engine_name, td->iodepth);
 252
 253         /*
 254          * recurse add identical jobs, clear numjobs and stonewall options
 255          * as they don't apply to sub-jobs
 256          */
 257         numjobs = td->numjobs;
 258         while (--numjobs) {
 259                 struct thread_data *td_new = get_new_job(0, td);
 260
 261                 if (!td_new)
 262                         goto err;
 263
 264                 td_new->numjobs = 1;
 265                 td_new->stonewall = 0;
 266                 td_new->jobnum = numjobs;
 267
 268                 if (add_job(td_new, jobname, prioclass, prio))
 269                         goto err;
 270         }
 271         return 0;
 272 err:
 273         put_job(td);
 274         return -1;
 275 }
 276
 277 int init_random_state(struct thread_data *td)
 278 {
 279         unsigned long seed;
 280         int fd, num_maps, blocks;
 281
 282         fd = open("/dev/random", O_RDONLY);
 283         if (fd == -1) {
 284                 td_verror(td, errno);
 285                 return 1;
 286         }
 287
 288         if (read(fd, &seed, sizeof(seed)) < (int) sizeof(seed)) {
 289                 td_verror(td, EIO);
 290                 close(fd);
 291                 return 1;
 292         }
 293
 294         close(fd);
 295
 296         srand48_r(seed, &td->bsrange_state);
 297         srand48_r(seed, &td->verify_state);
 298
 299         if (td->sequential)
 300                 return 0;
 301
 302         if (repeatable)
 303                 seed = DEF_RANDSEED;
 304
 305         blocks = (td->io_size + td->min_bs - 1) / td->min_bs;
 306         num_maps = blocks / BLOCKS_PER_MAP;
 307         td->file_map = malloc(num_maps * sizeof(long));
 308         td->num_maps = num_maps;
 309         memset(td->file_map, 0, num_maps * sizeof(long));
 310
 311         srand48_r(seed, &td->random_state);
 312         return 0;
 313 }
 314
 315 static void fill_cpu_mask(os_cpu_mask_t cpumask, int cpu)
 316 {
 317 #ifdef FIO_HAVE_CPU_AFFINITY
 318         unsigned int i;
 319
 320         CPU_ZERO(&cpumask);
 321
 322         for (i = 0; i < sizeof(int) * 8; i++) {
 323                 if ((1 << i) & cpu)
 324                         CPU_SET(i, &cpumask);
 325         }
 326 #endif
 327 }
 328
 329 static unsigned long get_mult(char c)
 330 {
 331         switch (c) {
 332                 case 'k':
 333                 case 'K':
 334                         return 1024;
 335                 case 'm':
 336                 case 'M':
 337                         return 1024 * 1024;
 338                 case 'g':
 339                 case 'G':
 340                         return 1024 * 1024 * 1024;
 341                 default:
 342                         return 1;
 343         }
 344 }
 345
 346 /*
 347  * convert string after '=' into decimal value, noting any size suffix
 348  */
 349 static int str_cnv(char *p, unsigned long long *val)
 350 {
 351         char *str;
 352         int len;
 353
 354         str = strchr(p, '=');
 355         if (!str)
 356                 return 1;
 357
 358         str++;
 359         len = strlen(str);
 360
 361         *val = strtoul(str, NULL, 10);
 362         if (*val == ULONG_MAX && errno == ERANGE)
 363                 return 1;
 364
 365         *val *= get_mult(str[len - 2]);
 366         return 0;
 367 }
 368
 369 static int check_strcnv(char *p, char *name, unsigned long long *val)
 370 {
 371         if (strncmp(p, name, strlen(name) - 1))
 372                 return 1;
 373
 374         return str_cnv(p, val);
 375 }
 376
 377 static void strip_blank_front(char **p)
 378 {
 379         char *s = *p;
 380
 381         while (isblank(*s))
 382                 s++;
 383 }
 384
 385 static void strip_blank_end(char *p)
 386 {
 387         while (isblank(*p)) {
 388                 *p = '\0';
 389                 p--;
 390         }
 391 }
 392
 393 typedef int (str_cb_fn)(struct thread_data *, char *);
 394
 395 static int check_str(char *p, char *name, str_cb_fn *cb, struct thread_data *td)
 396 {
 397         char *s = strstr(p, name);
 398
 399         if (!s)
 400                 return 1;
 401
 402         s = strchr(s, '=');
 403         if (!s)
 404                 return 1;
 405
 406         s++;
 407         strip_blank_front(&s);
 408         return cb(td, s);
 409 }
 410
 411 static int check_strstore(char *p, char *name, char *dest)
 412 {
 413         char *s = strstr(p, name);
 414
 415         if (!s)
 416                 return 1;
 417
 418         s = strchr(p, '=');
 419         if (!s)
 420                 return 1;
 421
 422         s++;
 423         strip_blank_front(&s);
 424
 425         strcpy(dest, s);
 426
 427         s = dest + strlen(dest) - 1;
 428         strip_blank_end(s);
 429         return 0;
 430 }
 431
 432 static int __check_range(char *str, unsigned long *val)
 433 {
 434         char suffix;
 435
 436         if (sscanf(str, "%lu%c", val, &suffix) == 2) {
 437                 *val *= get_mult(suffix);
 438                 return 0;
 439         }
 440
 441         if (sscanf(str, "%lu", val) == 1)
 442                 return 0;
 443
 444         return 1;
 445 }
 446
 447 static int check_range(char *p, char *name, unsigned long *s, unsigned long *e)
 448 {
 449         char option[128];
 450         char *str, *p1, *p2;
 451
 452         strcpy(option, p);
 453         p = option;
 454
 455         str = strstr(p, name);
 456         if (!str)
 457                 return 1;
 458
 459         p += strlen(name);
 460
 461         str = strchr(p, '=');
 462         if (!str)
 463                 return 1;
 464
 465         /*
 466          * 'p' now holds whatever is after the '=' sign
 467          */
 468         p1 = str + 1;
 469
 470         /*
 471          * terminate p1 at the '-' sign
 472          */
 473         p = strchr(p1, '-');
 474         if (!p)
 475                 return 1;
 476
 477         p2 = p + 1;
 478         *p = '\0';
 479
 480         if (!__check_range(p1, s) && !__check_range(p2, e))
 481                 return 0;
 482
 483         return 1;
 484 }
 485
 486 static int check_int(char *p, char *name, unsigned int *val)
 487 {
 488         char *str;
 489
 490         str = strstr(p, name);
 491         if (!str)
 492                 return 1;
 493
 494         str = strchr(p, '=');
 495         if (!str)
 496                 return 1;
 497
 498         str++;
 499
 500         if (sscanf(str, "%u", val) == 1)
 501                 return 0;
 502
 503         return 1;
 504 }
 505
 506 static int check_strset(char *p, char *name)
 507 {
 508         return strncmp(p, name, strlen(name));
 509 }
 510
 511 static int is_empty_or_comment(char *line)
 512 {
 513         unsigned int i;
 514
 515         for (i = 0; i < strlen(line); i++) {
 516                 if (line[i] == ';')
 517                         return 1;
 518                 if (!isspace(line[i]) && !iscntrl(line[i]))
 519                         return 0;
 520         }
 521
 522         return 1;
 523 }
 524
 525 static int str_rw_cb(struct thread_data *td, char *mem)
 526 {
 527         if (!strncmp(mem, "read", 4) || !strncmp(mem, "0", 1)) {
 528                 td->ddir = DDIR_READ;
 529                 td->sequential = 1;
 530                 return 0;
 531         } else if (!strncmp(mem, "randread", 8)) {
 532                 td->ddir = DDIR_READ;
 533                 td->sequential = 0;
 534                 return 0;
 535         } else if (!strncmp(mem, "write", 5) || !strncmp(mem, "1", 1)) {
 536                 td->ddir = DDIR_WRITE;
 537                 td->sequential = 1;
 538                 return 0;
 539         } else if (!strncmp(mem, "randwrite", 9)) {
 540                 td->ddir = DDIR_WRITE;
 541                 td->sequential = 0;
 542                 return 0;
 543         }
 544
 545         fprintf(stderr, "bad data direction: %s\n", mem);
 546         return 1;
 547 }
 548
 549 static int str_verify_cb(struct thread_data *td, char *mem)
 550 {
 551         if (!strncmp(mem, "0", 1)) {
 552                 td->verify = VERIFY_NONE;
 553                 return 0;
 554         } else if (!strncmp(mem, "md5", 3) || !strncmp(mem, "1", 1)) {
 555                 td->verify = VERIFY_MD5;
 556                 return 0;
 557         } else if (!strncmp(mem, "crc32", 5)) {
 558                 td->verify = VERIFY_CRC32;
 559                 return 0;
 560         }
 561
 562         fprintf(stderr, "bad verify type: %s\n", mem);
 563         return 1;
 564 }
 565
 566 static int str_mem_cb(struct thread_data *td, char *mem)
 567 {
 568         if (!strncmp(mem, "malloc", 6)) {
 569                 td->mem_type = MEM_MALLOC;
 570                 return 0;
 571         } else if (!strncmp(mem, "shm", 3)) {
 572                 td->mem_type = MEM_SHM;
 573                 return 0;
 574         } else if (!strncmp(mem, "mmap", 4)) {
 575                 td->mem_type = MEM_MMAP;
 576                 return 0;
 577         }
 578
 579         fprintf(stderr, "bad mem type: %s\n", mem);
 580         return 1;
 581 }
 582
 583 static int str_ioengine_cb(struct thread_data *td, char *str)
 584 {
 585         if (!strncmp(str, "linuxaio", 8) || !strncmp(str, "aio", 3) ||
 586             !strncmp(str, "libaio", 6)) {
 587                 strcpy(td->io_engine_name, "libaio");
 588                 td->io_engine = FIO_LIBAIO;
 589                 return 0;
 590         } else if (!strncmp(str, "posixaio", 8)) {
 591                 strcpy(td->io_engine_name, "posixaio");
 592                 td->io_engine = FIO_POSIXAIO;
 593                 return 0;
 594         } else if (!strncmp(str, "sync", 4)) {
 595                 strcpy(td->io_engine_name, "sync");
 596                 td->io_engine = FIO_SYNCIO;
 597                 return 0;
 598         } else if (!strncmp(str, "mmap", 4)) {
 599                 strcpy(td->io_engine_name, "mmap");
 600                 td->io_engine = FIO_MMAPIO;
 601                 return 0;
 602         } else if (!strncmp(str, "sgio", 4)) {
 603                 strcpy(td->io_engine_name, "sgio");
 604                 td->io_engine = FIO_SGIO;
 605                 return 0;
 606         }
 607
 608         fprintf(stderr, "bad ioengine type: %s\n", str);
 609         return 1;
 610 }
 611
 612
 613 int parse_jobs_ini(char *file)
 614 {
 615         unsigned int prioclass, prio, cpu, global;
 616         unsigned long long ull;
 617         unsigned long ul1, ul2;
 618         struct thread_data *td;
 619         char *string, *name;
 620         fpos_t off;
 621         FILE *f;
 622         char *p;
 623
 624         f = fopen(file, "r");
 625         if (!f) {
 626                 perror("fopen");
 627                 return 1;
 628         }
 629
 630         string = malloc(4096);
 631         name = malloc(256);
 632
 633         while ((p = fgets(string, 4096, f)) != NULL) {
 634                 if (is_empty_or_comment(p))
 635                         continue;
 636                 if (sscanf(p, "[%s]", name) != 1)
 637                         continue;
 638
 639                 global = !strncmp(name, "global", 6);
 640
 641                 name[strlen(name) - 1] = '\0';
 642
 643                 td = get_new_job(global, &def_thread);
 644                 if (!td)
 645                         return 1;
 646
 647                 prioclass = 2;
 648                 prio = 4;
 649
 650                 fgetpos(f, &off);
 651                 while ((p = fgets(string, 4096, f)) != NULL) {
 652                         if (is_empty_or_comment(p))
 653                                 continue;
 654                         if (strstr(p, "["))
 655                                 break;
 656                         if (!check_int(p, "prio", &prio)) {
 657 #ifndef FIO_HAVE_IOPRIO
 658                                 fprintf(stderr, "io priorities not available\n");
 659                                 return 1;
 660 #endif
 661                                 fgetpos(f, &off);
 662                                 continue;
 663                         }
 664                         if (!check_int(p, "prioclass", &prioclass)) {
 665 #ifndef FIO_HAVE_IOPRIO
 666                                 fprintf(stderr, "io priorities not available\n");
 667                                 return 1;
 668 #endif
 669                                 fgetpos(f, &off);
 670                                 continue;
 671                         }
 672                         if (!check_int(p, "direct", &td->odirect)) {
 673                                 fgetpos(f, &off);
 674                                 continue;
 675                         }
 676                         if (!check_int(p, "rate", &td->rate)) {
 677                                 fgetpos(f, &off);
 678                                 continue;
 679                         }
 680                         if (!check_int(p, "ratemin", &td->ratemin)) {
 681                                 fgetpos(f, &off);
 682                                 continue;
 683                         }
 684                         if (!check_int(p, "ratecycle", &td->ratecycle)) {
 685                                 fgetpos(f, &off);
 686                                 continue;
 687                         }
 688                         if (!check_int(p, "thinktime", &td->thinktime)) {
 689                                 fgetpos(f, &off);
 690                                 continue;
 691                         }
 692                         if (!check_int(p, "cpumask", &cpu)) {
 693 #ifndef FIO_HAVE_CPU_AFFINITY
 694                                 fprintf(stderr, "cpu affinity not available\n");
 695                                 return 1;
 696 #endif
 697                                 fill_cpu_mask(td->cpumask, cpu);
 698                                 fgetpos(f, &off);
 699                                 continue;
 700                         }
 701                         if (!check_int(p, "fsync", &td->fsync_blocks)) {
 702                                 fgetpos(f, &off);
 703                                 continue;
 704                         }
 705                         if (!check_int(p, "startdelay", &td->start_delay)) {
 706                                 fgetpos(f, &off);
 707                                 continue;
 708                         }
 709                         if (!check_int(p, "timeout", &td->timeout)) {
 710                                 fgetpos(f, &off);
 711                                 continue;
 712                         }
 713                         if (!check_int(p, "invalidate",&td->invalidate_cache)) {
 714                                 fgetpos(f, &off);
 715                                 continue;
 716                         }
 717                         if (!check_int(p, "iodepth", &td->iodepth)) {
 718                                 fgetpos(f, &off);
 719                                 continue;
 720                         }
 721                         if (!check_int(p, "sync", &td->sync_io)) {
 722                                 fgetpos(f, &off);
 723                                 continue;
 724                         }
 725                         if (!check_int(p, "bwavgtime", &td->bw_avg_time)) {
 726                                 fgetpos(f, &off);
 727                                 continue;
 728                         }
 729                         if (!check_int(p, "create_serialize", &td->create_serialize)) {
 730                                 fgetpos(f, &off);
 731                                 continue;
 732                         }
 733                         if (!check_int(p, "create_fsync", &td->create_fsync)) {
 734                                 fgetpos(f, &off);
 735                                 continue;
 736                         }
 737                         if (!check_int(p, "loops", &td->loops)) {
 738                                 fgetpos(f, &off);
 739                                 continue;
 740                         }
 741                         if (!check_int(p, "numjobs", &td->numjobs)) {
 742                                 fgetpos(f, &off);
 743                                 continue;
 744                         }
 745                         if (!check_int(p, "overwrite", &td->overwrite)) {
 746                                 fgetpos(f, &off);
 747                                 continue;
 748                         }
 749                         if (!check_range(p, "bsrange", &ul1, &ul2)) {
 750                                 if (ul1 > ul2) {
 751                                         td->max_bs = ul1;
 752                                         td->min_bs = ul2;
 753                                 } else {
 754                                         td->max_bs = ul2;
 755                                         td->min_bs = ul1;
 756                                 }
 757                                 fgetpos(f, &off);
 758                                 continue;
 759                         }
 760                         if (!check_strcnv(p, "bs", &ull)) {
 761                                 td->bs = ull;
 762                                 fgetpos(f, &off);
 763                                 continue;
 764                         }
 765                         if (!check_strcnv(p, "size", &td->file_size)) {
 766                                 fgetpos(f, &off);
 767                                 continue;
 768                         }
 769                         if (!check_strcnv(p, "offset", &td->file_offset)) {
 770                                 fgetpos(f, &off);
 771                                 continue;
 772                         }
 773                         if (!check_strcnv(p, "zonesize", &td->zone_size)) {
 774                                 fgetpos(f, &off);
 775                                 continue;
 776                         }
 777                         if (!check_strcnv(p, "zoneskip", &td->zone_skip)) {
 778                                 fgetpos(f, &off);
 779                                 continue;
 780                         }
 781                         if (!check_strstore(p, "directory", td->directory)) {
 782                                 fgetpos(f, &off);
 783                                 continue;
 784                         }
 785                         if (!check_str(p, "mem", str_mem_cb, td)) {
 786                                 fgetpos(f, &off);
 787                                 continue;
 788                         }
 789                         if (!check_str(p, "verify", str_verify_cb, td)) {
 790                                 fgetpos(f, &off);
 791                                 continue;
 792                         }
 793                         if (!check_str(p, "rw", str_rw_cb, td)) {
 794                                 fgetpos(f, &off);
 795                                 continue;
 796                         }
 797                         if (!check_str(p, "ioengine", str_ioengine_cb, td)) {
 798                                 fgetpos(f, &off);
 799                                 continue;
 800                         }
 801                         if (!check_strset(p, "create")) {
 802                                 td->create_file = 1;
 803                                 fgetpos(f, &off);
 804                                 continue;
 805                         }
 806                         if (!check_strset(p, "exitall")) {
 807                                 exitall_on_terminate = 1;
 808                                 fgetpos(f, &off);
 809                                 continue;
 810                         }
 811                         if (!check_strset(p, "stonewall")) {
 812                                 td->stonewall = 1;
 813                                 fgetpos(f, &off);
 814                                 continue;
 815                         }
 816                         if (!check_strset(p, "thread")) {
 817                                 td->use_thread = 1;
 818                                 fgetpos(f, &off);
 819                                 continue;
 820                         }
 821
 822                         printf("Client%d: bad option %s\n",td->thread_number,p);
 823                 }
 824                 fsetpos(f, &off);
 825
 826                 if (add_job(td, name, prioclass, prio))
 827                         return 1;
 828         }
 829
 830         free(string);
 831         free(name);
 832         fclose(f);
 833         return 0;
 834 }
 835
 836 static int fill_def_thread(void)
 837 {
 838         memset(&def_thread, 0, sizeof(def_thread));
 839
 840         if (fio_getaffinity(getpid(), &def_thread.cpumask) == -1) {
 841                 perror("sched_getaffinity");
 842                 return 1;
 843         }
 844
 845         /*
 846          * fill globals
 847          */
 848         def_thread.ddir = DDIR_READ;
 849         def_thread.bs = DEF_BS;
 850         def_thread.min_bs = -1;
 851         def_thread.max_bs = -1;
 852         def_thread.io_engine = DEF_IO_ENGINE;
 853         strcpy(def_thread.io_engine_name, DEF_IO_ENGINE_NAME);
 854         def_thread.odirect = DEF_ODIRECT;
 855         def_thread.ratecycle = DEF_RATE_CYCLE;
 856         def_thread.sequential = DEF_SEQUENTIAL;
 857         def_thread.timeout = DEF_TIMEOUT;
 858         def_thread.create_file = DEF_CREATE;
 859         def_thread.overwrite = DEF_OVERWRITE;
 860         def_thread.invalidate_cache = DEF_INVALIDATE;
 861         def_thread.sync_io = DEF_SYNCIO;
 862         def_thread.mem_type = MEM_MALLOC;
 863         def_thread.bw_avg_time = DEF_BWAVGTIME;
 864         def_thread.create_serialize = DEF_CREATE_SER;
 865         def_thread.create_fsync = DEF_CREATE_FSYNC;
 866         def_thread.loops = DEF_LOOPS;
 867         def_thread.verify = DEF_VERIFY;
 868         def_thread.stonewall = DEF_STONEWALL;
 869         def_thread.numjobs = DEF_NUMJOBS;
 870         def_thread.use_thread = DEF_USE_THREAD;
 871 #ifdef FIO_HAVE_DISK_UTIL
 872         def_thread.do_disk_util = 1;
 873 #endif
 874
 875         return 0;
 876 }
 877
 878 static void parse_cmd_line(int argc, char *argv[])
 879 {
 880         int c;
 881
 882         while ((c = getopt(argc, argv, "s:b:t:r:R:o:f:lwv")) != EOF) {
 883                 switch (c) {
 884                         case 's':
 885                                 def_thread.sequential = !!atoi(optarg);
 886                                 break;
 887                         case 'b':
 888                                 def_thread.bs = atoi(optarg);
 889                                 def_thread.bs <<= 10;
 890                                 if (!def_thread.bs) {
 891                                         printf("bad block size\n");
 892                                         def_thread.bs = DEF_BS;
 893                                 }
 894                                 break;
 895                         case 't':
 896                                 def_thread.timeout = atoi(optarg);
 897                                 break;
 898                         case 'r':
 899                                 repeatable = !!atoi(optarg);
 900                                 break;
 901                         case 'R':
 902                                 rate_quit = !!atoi(optarg);
 903                                 break;
 904                         case 'o':
 905                                 def_thread.odirect = !!atoi(optarg);
 906                                 break;
 907                         case 'f':
 908                                 ini_file = strdup(optarg);
 909                                 break;
 910                         case 'l':
 911                                 write_lat_log = 1;
 912                                 break;
 913                         case 'w':
 914                                 write_bw_log = 1;
 915                                 break;
 916                         case 'v':
 917                                 printf("%s\n", fio_version_string);
 918                                 exit(0);
 919                 }
 920         }
 921 }
 922
 923 static void free_shm(void)
 924 {
 925         struct shmid_ds sbuf;
 926
 927         if (threads) {
 928                 shmdt(threads);
 929                 threads = NULL;
 930                 shmctl(shm_id, IPC_RMID, &sbuf);
 931         }
 932 }
 933
 934 static int setup_thread_area(void)
 935 {
 936         /*
 937          * 1024 is too much on some machines, scale max_jobs if
 938          * we get a failure that looks like too large a shm segment
 939          */
 940         do {
 941                 int s = max_jobs * sizeof(struct thread_data);
 942
 943                 shm_id = shmget(0, s, IPC_CREAT | 0600);
 944                 if (shm_id != -1)
 945                         break;
 946                 if (errno != EINVAL) {
 947                         perror("shmget");
 948                         break;
 949                 }
 950
 951                 max_jobs >>= 1;
 952         } while (max_jobs);
 953
 954         if (shm_id == -1)
 955                 return 1;
 956
 957         threads = shmat(shm_id, NULL, 0);
 958         if (threads == (void *) -1) {
 959                 perror("shmat");
 960                 return 1;
 961         }
 962
 963         atexit(free_shm);
 964         return 0;
 965 }
 966
 967 int parse_options(int argc, char *argv[])
 968 {
 969         if (setup_thread_area())
 970                 return 1;
 971         if (fill_def_thread())
 972                 return 1;
 973
 974         parse_cmd_line(argc, argv);
 975
 976         if (!ini_file) {
 977                 printf("Need job file\n");
 978                 return 1;
 979         }
 980
 981         if (parse_jobs_ini(ini_file))
 982                 return 1;
 983
 984         return 0;
 985 }