fio-ini.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <unistd.h>
   4 #include <fcntl.h>
   5 #include <ctype.h>
   6 #include <string.h>
   7 #include <errno.h>
   8 #include <sys/ipc.h>
   9 #include <sys/shm.h>
  10 #include <sys/types.h>
  11 #include <sys/stat.h>
  12
  13 #include "fio.h"
  14
  15 #define DEF_BS                  (4096)
  16 #define DEF_TIMEOUT             (0)
  17 #define DEF_RATE_CYCLE          (1000)
  18 #define DEF_ODIRECT             (1)
  19 #define DEF_IO_ENGINE           (FIO_SYNCIO)
  20 #define DEF_IO_ENGINE_NAME      "sync"
  21 #define DEF_SEQUENTIAL          (1)
  22 #define DEF_RAND_REPEAT         (1)
  23 #define DEF_OVERWRITE           (1)
  24 #define DEF_CREATE              (1)
  25 #define DEF_INVALIDATE          (1)
  26 #define DEF_SYNCIO              (0)
  27 #define DEF_RANDSEED            (0xb1899bedUL)
  28 #define DEF_BWAVGTIME           (500)
  29 #define DEF_CREATE_SER          (1)
  30 #define DEF_CREATE_FSYNC        (1)
  31 #define DEF_LOOPS               (1)
  32 #define DEF_VERIFY              (0)
  33 #define DEF_STONEWALL           (0)
  34 #define DEF_NUMJOBS             (1)
  35 #define DEF_USE_THREAD          (0)
  36 #define DEF_FILE_SIZE           (1024 * 1024 * 1024UL)
  37 #define DEF_ZONE_SIZE           (0)
  38 #define DEF_ZONE_SKIP           (0)
  39
  40 static char fio_version_string[] = "fio 1.3";
  41
  42 static int repeatable = DEF_RAND_REPEAT;
  43 static char *ini_file;
  44 static int max_jobs = MAX_JOBS;
  45
  46 struct thread_data def_thread;
  47 struct thread_data *threads = NULL;
  48
  49 int rate_quit = 0;
  50 int write_lat_log = 0;
  51 int write_bw_log = 0;
  52 int exitall_on_terminate = 0;
  53 unsigned long long mlock_size = 0;
  54
  55 static int setup_rate(struct thread_data *td)
  56 {
  57         int nr_reads_per_sec;
  58
  59         if (!td->rate)
  60                 return 0;
  61
  62         if (td->rate < td->ratemin) {
  63                 fprintf(stderr, "min rate larger than nominal rate\n");
  64                 return -1;
  65         }
  66
  67         nr_reads_per_sec = (td->rate * 1024) / td->min_bs;
  68         td->rate_usec_cycle = 1000000 / nr_reads_per_sec;
  69         td->rate_pending_usleep = 0;
  70         return 0;
  71 }
  72
  73 static void setup_log(struct io_log **log)
  74 {
  75         struct io_log *l = malloc(sizeof(*l));
  76
  77         l->nr_samples = 0;
  78         l->max_samples = 1024;
  79         l->log = malloc(l->max_samples * sizeof(struct io_sample));
  80         *log = l;
  81 }
  82
  83 void finish_log(struct thread_data *td, struct io_log *log, const char *name)
  84 {
  85         char file_name[256];
  86         FILE *f;
  87         unsigned int i;
  88
  89         snprintf(file_name, 200, "client%d_%s.log", td->thread_number, name);
  90         f = fopen(file_name, "w");
  91         if (!f) {
  92                 perror("fopen log");
  93                 return;
  94         }
  95
  96         for (i = 0; i < log->nr_samples; i++)
  97                 fprintf(f, "%lu, %lu, %u\n", log->log[i].time, log->log[i].val, log->log[i].ddir);
  98
  99         fclose(f);
 100         free(log->log);
 101         free(log);
 102 }
 103
 104 static struct thread_data *get_new_job(int global, struct thread_data *parent)
 105 {
 106         struct thread_data *td;
 107
 108         if (global)
 109                 return &def_thread;
 110         if (thread_number >= max_jobs)
 111                 return NULL;
 112
 113         td = &threads[thread_number++];
 114         if (parent)
 115                 *td = *parent;
 116         else
 117                 memset(td, 0, sizeof(*td));
 118
 119         td->fd = -1;
 120         td->thread_number = thread_number;
 121
 122         td->ddir = parent->ddir;
 123         td->ioprio = parent->ioprio;
 124         td->sequential = parent->sequential;
 125         td->bs = parent->bs;
 126         td->min_bs = parent->min_bs;
 127         td->max_bs = parent->max_bs;
 128         td->odirect = parent->odirect;
 129         td->thinktime = parent->thinktime;
 130         td->fsync_blocks = parent->fsync_blocks;
 131         td->start_delay = parent->start_delay;
 132         td->timeout = parent->timeout;
 133         td->io_engine = parent->io_engine;
 134         td->create_file = parent->create_file;
 135         td->overwrite = parent->overwrite;
 136         td->invalidate_cache = parent->invalidate_cache;
 137         td->file_size = parent->file_size;
 138         td->file_offset = parent->file_offset;
 139         td->zone_size = parent->zone_size;
 140         td->zone_skip = parent->zone_skip;
 141         td->rate = parent->rate;
 142         td->ratemin = parent->ratemin;
 143         td->ratecycle = parent->ratecycle;
 144         td->iodepth = parent->iodepth;
 145         td->sync_io = parent->sync_io;
 146         td->mem_type = parent->mem_type;
 147         td->bw_avg_time = parent->bw_avg_time;
 148         td->create_serialize = parent->create_serialize;
 149         td->create_fsync = parent->create_fsync;
 150         td->loops = parent->loops;
 151         td->verify = parent->verify;
 152         td->stonewall = parent->stonewall;
 153         td->numjobs = parent->numjobs;
 154         td->use_thread = parent->use_thread;
 155         td->do_disk_util = parent->do_disk_util;
 156         memcpy(&td->cpumask, &parent->cpumask, sizeof(td->cpumask));
 157         strcpy(td->io_engine_name, parent->io_engine_name);
 158
 159         return td;
 160 }
 161
 162 static void put_job(struct thread_data *td)
 163 {
 164         memset(&threads[td->thread_number - 1], 0, sizeof(*td));
 165         thread_number--;
 166 }
 167
 168 static int add_job(struct thread_data *td, const char *jobname, int job_add_num)
 169 {
 170         char *ddir_str[] = { "read", "write", "randread", "randwrite",
 171                              "rw", NULL, "randrw" };
 172         struct stat sb;
 173         int numjobs, ddir;
 174
 175 #ifndef FIO_HAVE_LIBAIO
 176         if (td->io_engine == FIO_LIBAIO) {
 177                 fprintf(stderr, "Linux libaio not available\n");
 178                 return 1;
 179         }
 180 #endif
 181 #ifndef FIO_HAVE_POSIXAIO
 182         if (td->io_engine == FIO_POSIXAIO) {
 183                 fprintf(stderr, "posix aio not available\n");
 184                 return 1;
 185         }
 186 #endif
 187
 188         /*
 189          * the def_thread is just for options, it's not a real job
 190          */
 191         if (td == &def_thread)
 192                 return 0;
 193
 194         if (td->io_engine & FIO_SYNCIO)
 195                 td->iodepth = 1;
 196         else {
 197                 if (!td->iodepth)
 198                         td->iodepth = 1;
 199         }
 200
 201         /*
 202          * only really works for sequential io for now
 203          */
 204         if (td->zone_size && !td->sequential)
 205                 td->zone_size = 0;
 206
 207         td->filetype = FIO_TYPE_FILE;
 208         if (!stat(jobname, &sb)) {
 209                 if (S_ISBLK(sb.st_mode))
 210                         td->filetype = FIO_TYPE_BD;
 211                 else if (S_ISCHR(sb.st_mode))
 212                         td->filetype = FIO_TYPE_CHAR;
 213         }
 214
 215         if (td->filetype == FIO_TYPE_FILE) {
 216                 if (td->directory[0] != '\0')
 217                         sprintf(td->file_name, "%s/%s.%d", td->directory, jobname, td->jobnum);
 218                 else
 219                         sprintf(td->file_name, "%s.%d", jobname, td->jobnum);
 220         } else
 221                 strncpy(td->file_name, jobname, sizeof(td->file_name) - 1);
 222
 223         sem_init(&td->mutex, 0, 0);
 224
 225         td->clat_stat[0].min_val = td->clat_stat[1].min_val = ULONG_MAX;
 226         td->slat_stat[0].min_val = td->slat_stat[1].min_val = ULONG_MAX;
 227         td->bw_stat[0].min_val = td->bw_stat[1].min_val = ULONG_MAX;
 228
 229         if (td->min_bs == -1U)
 230                 td->min_bs = td->bs;
 231         if (td->max_bs == -1U)
 232                 td->max_bs = td->bs;
 233         if (td_read(td) && !td_rw(td))
 234                 td->verify = 0;
 235
 236         if (td->stonewall && td->thread_number > 1)
 237                 groupid++;
 238
 239         td->groupid = groupid;
 240
 241         if (setup_rate(td))
 242                 goto err;
 243
 244         if (write_lat_log) {
 245                 setup_log(&td->slat_log);
 246                 setup_log(&td->clat_log);
 247         }
 248         if (write_bw_log)
 249                 setup_log(&td->bw_log);
 250
 251         ddir = td->ddir + (!td->sequential << 1) + (td->iomix << 2);
 252
 253         if (!job_add_num)
 254                 printf("Client%d (g=%d): rw=%s, odir=%d, bs=%d-%d, rate=%d, ioengine=%s, iodepth=%d\n", td->thread_number, td->groupid, ddir_str[ddir], td->odirect, td->min_bs, td->max_bs, td->rate, td->io_engine_name, td->iodepth);
 255         else if (job_add_num == 1)
 256                 printf("...\n");
 257
 258         /*
 259          * recurse add identical jobs, clear numjobs and stonewall options
 260          * as they don't apply to sub-jobs
 261          */
 262         numjobs = td->numjobs;
 263         while (--numjobs) {
 264                 struct thread_data *td_new = get_new_job(0, td);
 265
 266                 if (!td_new)
 267                         goto err;
 268
 269                 td_new->numjobs = 1;
 270                 td_new->stonewall = 0;
 271                 td_new->jobnum = numjobs;
 272                 job_add_num = numjobs - 1;
 273
 274                 if (add_job(td_new, jobname, job_add_num))
 275                         goto err;
 276         }
 277         return 0;
 278 err:
 279         put_job(td);
 280         return -1;
 281 }
 282
 283 int init_random_state(struct thread_data *td)
 284 {
 285         unsigned long seed;
 286         int fd, num_maps, blocks;
 287
 288         fd = open("/dev/urandom", O_RDONLY);
 289         if (fd == -1) {
 290                 td_verror(td, errno);
 291                 return 1;
 292         }
 293
 294         if (read(fd, &seed, sizeof(seed)) < (int) sizeof(seed)) {
 295                 td_verror(td, EIO);
 296                 close(fd);
 297                 return 1;
 298         }
 299
 300         close(fd);
 301
 302         srand48_r(seed, &td->bsrange_state);
 303         srand48_r(seed, &td->verify_state);
 304
 305         if (td->sequential)
 306                 return 0;
 307
 308         if (repeatable)
 309                 seed = DEF_RANDSEED;
 310
 311         blocks = (td->io_size + td->min_bs - 1) / td->min_bs;
 312         num_maps = blocks / BLOCKS_PER_MAP;
 313         td->file_map = malloc(num_maps * sizeof(long));
 314         td->num_maps = num_maps;
 315         memset(td->file_map, 0, num_maps * sizeof(long));
 316
 317         srand48_r(seed, &td->random_state);
 318         return 0;
 319 }
 320
 321 static void fill_cpu_mask(os_cpu_mask_t cpumask, int cpu)
 322 {
 323 #ifdef FIO_HAVE_CPU_AFFINITY
 324         unsigned int i;
 325
 326         CPU_ZERO(&cpumask);
 327
 328         for (i = 0; i < sizeof(int) * 8; i++) {
 329                 if ((1 << i) & cpu)
 330                         CPU_SET(i, &cpumask);
 331         }
 332 #endif
 333 }
 334
 335 static unsigned long get_mult(char c)
 336 {
 337         switch (c) {
 338                 case 'k':
 339                 case 'K':
 340                         return 1024;
 341                 case 'm':
 342                 case 'M':
 343                         return 1024 * 1024;
 344                 case 'g':
 345                 case 'G':
 346                         return 1024 * 1024 * 1024;
 347                 default:
 348                         return 1;
 349         }
 350 }
 351
 352 /*
 353  * convert string after '=' into decimal value, noting any size suffix
 354  */
 355 static int str_cnv(char *p, unsigned long long *val)
 356 {
 357         char *str;
 358         int len;
 359
 360         str = strchr(p, '=');
 361         if (!str)
 362                 return 1;
 363
 364         str++;
 365         len = strlen(str);
 366
 367         *val = strtoul(str, NULL, 10);
 368         if (*val == ULONG_MAX && errno == ERANGE)
 369                 return 1;
 370
 371         *val *= get_mult(str[len - 1]);
 372         return 0;
 373 }
 374
 375 static int check_strcnv(char *p, char *name, unsigned long long *val)
 376 {
 377         if (strncmp(p, name, strlen(name) - 1))
 378                 return 1;
 379
 380         return str_cnv(p, val);
 381 }
 382
 383 static void strip_blank_front(char **p)
 384 {
 385         char *s = *p;
 386
 387         while (isspace(*s))
 388                 s++;
 389 }
 390
 391 static void strip_blank_end(char *p)
 392 {
 393         char *s = p + strlen(p) - 1;
 394
 395         while (isspace(*s) || iscntrl(*s))
 396                 s--;
 397
 398         *(s + 1) = '\0';
 399 }
 400
 401 typedef int (str_cb_fn)(struct thread_data *, char *);
 402
 403 static int check_str(char *p, char *name, str_cb_fn *cb, struct thread_data *td)
 404 {
 405         char *s;
 406
 407         if (strncmp(p, name, strlen(name)))
 408                 return 1;
 409
 410         s = strstr(p, name);
 411         if (!s)
 412                 return 1;
 413
 414         s = strchr(s, '=');
 415         if (!s)
 416                 return 1;
 417
 418         s++;
 419         strip_blank_front(&s);
 420         return cb(td, s);
 421 }
 422
 423 static int check_strstore(char *p, char *name, char *dest)
 424 {
 425         char *s;
 426
 427         if (strncmp(p, name, strlen(name)))
 428                 return 1;
 429
 430         s = strstr(p, name);
 431         if (!s)
 432                 return 1;
 433
 434         s = strchr(p, '=');
 435         if (!s)
 436                 return 1;
 437
 438         s++;
 439         strip_blank_front(&s);
 440
 441         strcpy(dest, s);
 442         return 0;
 443 }
 444
 445 static int __check_range(char *str, unsigned long *val)
 446 {
 447         char suffix;
 448
 449         if (sscanf(str, "%lu%c", val, &suffix) == 2) {
 450                 *val *= get_mult(suffix);
 451                 return 0;
 452         }
 453
 454         if (sscanf(str, "%lu", val) == 1)
 455                 return 0;
 456
 457         return 1;
 458 }
 459
 460 static int check_range(char *p, char *name, unsigned long *s, unsigned long *e)
 461 {
 462         char option[128];
 463         char *str, *p1, *p2;
 464
 465         if (strncmp(p, name, strlen(name)))
 466                 return 1;
 467
 468         strcpy(option, p);
 469         p = option;
 470
 471         str = strstr(p, name);
 472         if (!str)
 473                 return 1;
 474
 475         p += strlen(name);
 476
 477         str = strchr(p, '=');
 478         if (!str)
 479                 return 1;
 480
 481         /*
 482          * 'p' now holds whatever is after the '=' sign
 483          */
 484         p1 = str + 1;
 485
 486         /*
 487          * terminate p1 at the '-' sign
 488          */
 489         p = strchr(p1, '-');
 490         if (!p)
 491                 return 1;
 492
 493         p2 = p + 1;
 494         *p = '\0';
 495
 496         if (!__check_range(p1, s) && !__check_range(p2, e))
 497                 return 0;
 498
 499         return 1;
 500 }
 501
 502 static int check_int(char *p, char *name, unsigned int *val)
 503 {
 504         char *str;
 505
 506         if (strncmp(p, name, strlen(name)))
 507                 return 1;
 508
 509         str = strstr(p, name);
 510         if (!str)
 511                 return 1;
 512
 513         str = strchr(p, '=');
 514         if (!str)
 515                 return 1;
 516
 517         str++;
 518
 519         if (sscanf(str, "%u", val) == 1)
 520                 return 0;
 521
 522         return 1;
 523 }
 524
 525 static int check_strset(char *p, char *name)
 526 {
 527         return strncmp(p, name, strlen(name));
 528 }
 529
 530 static int is_empty_or_comment(char *line)
 531 {
 532         unsigned int i;
 533
 534         for (i = 0; i < strlen(line); i++) {
 535                 if (line[i] == ';')
 536                         return 1;
 537                 if (!isspace(line[i]) && !iscntrl(line[i]))
 538                         return 0;
 539         }
 540
 541         return 1;
 542 }
 543
 544 static int str_rw_cb(struct thread_data *td, char *mem)
 545 {
 546         if (!strncmp(mem, "read", 4) || !strncmp(mem, "0", 1)) {
 547                 td->ddir = DDIR_READ;
 548                 td->sequential = 1;
 549                 return 0;
 550         } else if (!strncmp(mem, "randread", 8)) {
 551                 td->ddir = DDIR_READ;
 552                 td->sequential = 0;
 553                 return 0;
 554         } else if (!strncmp(mem, "write", 5) || !strncmp(mem, "1", 1)) {
 555                 td->ddir = DDIR_WRITE;
 556                 td->sequential = 1;
 557                 return 0;
 558         } else if (!strncmp(mem, "randwrite", 9)) {
 559                 td->ddir = DDIR_WRITE;
 560                 td->sequential = 0;
 561                 return 0;
 562         } else if (!strncmp(mem, "rw", 2)) {
 563                 td->ddir = 0;
 564                 td->iomix = 1;
 565                 td->sequential = 1;
 566                 return 0;
 567         } else if (!strncmp(mem, "randrw", 6)) {
 568                 td->ddir = 0;
 569                 td->iomix = 1;
 570                 td->sequential = 0;
 571                 return 0;
 572         }
 573
 574         fprintf(stderr, "bad data direction: %s\n", mem);
 575         return 1;
 576 }
 577
 578 static int str_verify_cb(struct thread_data *td, char *mem)
 579 {
 580         if (!strncmp(mem, "0", 1)) {
 581                 td->verify = VERIFY_NONE;
 582                 return 0;
 583         } else if (!strncmp(mem, "md5", 3) || !strncmp(mem, "1", 1)) {
 584                 td->verify = VERIFY_MD5;
 585                 return 0;
 586         } else if (!strncmp(mem, "crc32", 5)) {
 587                 td->verify = VERIFY_CRC32;
 588                 return 0;
 589         }
 590
 591         fprintf(stderr, "bad verify type: %s\n", mem);
 592         return 1;
 593 }
 594
 595 static int str_mem_cb(struct thread_data *td, char *mem)
 596 {
 597         if (!strncmp(mem, "malloc", 6)) {
 598                 td->mem_type = MEM_MALLOC;
 599                 return 0;
 600         } else if (!strncmp(mem, "shm", 3)) {
 601                 td->mem_type = MEM_SHM;
 602                 return 0;
 603         } else if (!strncmp(mem, "mmap", 4)) {
 604                 td->mem_type = MEM_MMAP;
 605                 return 0;
 606         }
 607
 608         fprintf(stderr, "bad mem type: %s\n", mem);
 609         return 1;
 610 }
 611
 612 static int str_ioengine_cb(struct thread_data *td, char *str)
 613 {
 614         if (!strncmp(str, "linuxaio", 8) || !strncmp(str, "aio", 3) ||
 615             !strncmp(str, "libaio", 6)) {
 616                 strcpy(td->io_engine_name, "libaio");
 617                 td->io_engine = FIO_LIBAIO;
 618                 return 0;
 619         } else if (!strncmp(str, "posixaio", 8)) {
 620                 strcpy(td->io_engine_name, "posixaio");
 621                 td->io_engine = FIO_POSIXAIO;
 622                 return 0;
 623         } else if (!strncmp(str, "sync", 4)) {
 624                 strcpy(td->io_engine_name, "sync");
 625                 td->io_engine = FIO_SYNCIO;
 626                 return 0;
 627         } else if (!strncmp(str, "mmap", 4)) {
 628                 strcpy(td->io_engine_name, "mmap");
 629                 td->io_engine = FIO_MMAPIO;
 630                 return 0;
 631         } else if (!strncmp(str, "sgio", 4)) {
 632                 strcpy(td->io_engine_name, "sgio");
 633                 td->io_engine = FIO_SGIO;
 634                 return 0;
 635         } else if (!strncmp(str, "splice", 6)) {
 636                 strcpy(td->io_engine_name, "splice");
 637                 td->io_engine = FIO_SPLICEIO;
 638                 return 0;
 639         }
 640
 641         fprintf(stderr, "bad ioengine type: %s\n", str);
 642         return 1;
 643 }
 644
 645 static int str_iolog_cb(struct thread_data *td, char *file)
 646 {
 647         strncpy(td->iolog_file, file, sizeof(td->iolog_file) - 1);
 648         return 0;
 649 }
 650
 651 int parse_jobs_ini(char *file)
 652 {
 653         unsigned int prioclass, prio, cpu, global;
 654         unsigned long long ull;
 655         unsigned long ul1, ul2;
 656         struct thread_data *td;
 657         char *string, *name;
 658         fpos_t off;
 659         FILE *f;
 660         char *p;
 661
 662         f = fopen(file, "r");
 663         if (!f) {
 664                 perror("fopen job file");
 665                 return 1;
 666         }
 667
 668         string = malloc(4096);
 669         name = malloc(256);
 670
 671         while ((p = fgets(string, 4096, f)) != NULL) {
 672                 if (is_empty_or_comment(p))
 673                         continue;
 674                 if (sscanf(p, "[%s]", name) != 1)
 675                         continue;
 676
 677                 global = !strncmp(name, "global", 6);
 678
 679                 name[strlen(name) - 1] = '\0';
 680
 681                 td = get_new_job(global, &def_thread);
 682                 if (!td)
 683                         return 1;
 684
 685                 fgetpos(f, &off);
 686                 while ((p = fgets(string, 4096, f)) != NULL) {
 687                         if (is_empty_or_comment(p))
 688                                 continue;
 689                         if (strstr(p, "["))
 690                                 break;
 691                         strip_blank_front(&p);
 692                         strip_blank_end(p);
 693
 694                         if (!check_int(p, "prio", &prio)) {
 695 #ifndef FIO_HAVE_IOPRIO
 696                                 fprintf(stderr, "io priorities not available\n");
 697                                 return 1;
 698 #endif
 699                                 td->ioprio |= prio;
 700                                 fgetpos(f, &off);
 701                                 continue;
 702                         }
 703                         if (!check_int(p, "prioclass", &prioclass)) {
 704 #ifndef FIO_HAVE_IOPRIO
 705                                 fprintf(stderr, "io priorities not available\n");
 706                                 return 1;
 707 #endif
 708                                 td->ioprio |= prioclass << IOPRIO_CLASS_SHIFT;
 709                                 fgetpos(f, &off);
 710                                 continue;
 711                         }
 712                         if (!check_int(p, "direct", &td->odirect)) {
 713                                 fgetpos(f, &off);
 714                                 continue;
 715                         }
 716                         if (!check_int(p, "rate", &td->rate)) {
 717                                 fgetpos(f, &off);
 718                                 continue;
 719                         }
 720                         if (!check_int(p, "ratemin", &td->ratemin)) {
 721                                 fgetpos(f, &off);
 722                                 continue;
 723                         }
 724                         if (!check_int(p, "ratecycle", &td->ratecycle)) {
 725                                 fgetpos(f, &off);
 726                                 continue;
 727                         }
 728                         if (!check_int(p, "thinktime", &td->thinktime)) {
 729                                 fgetpos(f, &off);
 730                                 continue;
 731                         }
 732                         if (!check_int(p, "cpumask", &cpu)) {
 733 #ifndef FIO_HAVE_CPU_AFFINITY
 734                                 fprintf(stderr, "cpu affinity not available\n");
 735                                 return 1;
 736 #endif
 737                                 fill_cpu_mask(td->cpumask, cpu);
 738                                 fgetpos(f, &off);
 739                                 continue;
 740                         }
 741                         if (!check_int(p, "fsync", &td->fsync_blocks)) {
 742                                 fgetpos(f, &off);
 743                                 td->end_fsync = 1;
 744                                 continue;
 745                         }
 746                         if (!check_int(p, "startdelay", &td->start_delay)) {
 747                                 fgetpos(f, &off);
 748                                 continue;
 749                         }
 750                         if (!check_int(p, "timeout", &td->timeout)) {
 751                                 fgetpos(f, &off);
 752                                 continue;
 753                         }
 754                         if (!check_int(p, "invalidate",&td->invalidate_cache)) {
 755                                 fgetpos(f, &off);
 756                                 continue;
 757                         }
 758                         if (!check_int(p, "iodepth", &td->iodepth)) {
 759                                 fgetpos(f, &off);
 760                                 continue;
 761                         }
 762                         if (!check_int(p, "sync", &td->sync_io)) {
 763                                 fgetpos(f, &off);
 764                                 continue;
 765                         }
 766                         if (!check_int(p, "bwavgtime", &td->bw_avg_time)) {
 767                                 fgetpos(f, &off);
 768                                 continue;
 769                         }
 770                         if (!check_int(p, "create_serialize", &td->create_serialize)) {
 771                                 fgetpos(f, &off);
 772                                 continue;
 773                         }
 774                         if (!check_int(p, "create_fsync", &td->create_fsync)) {
 775                                 fgetpos(f, &off);
 776                                 continue;
 777                         }
 778                         if (!check_int(p, "end_fsync", &td->end_fsync)) {
 779                                 fgetpos(f, &off);
 780                                 continue;
 781                         }
 782                         if (!check_int(p, "loops", &td->loops)) {
 783                                 fgetpos(f, &off);
 784                                 continue;
 785                         }
 786                         if (!check_int(p, "numjobs", &td->numjobs)) {
 787                                 fgetpos(f, &off);
 788                                 continue;
 789                         }
 790                         if (!check_int(p, "overwrite", &td->overwrite)) {
 791                                 fgetpos(f, &off);
 792                                 continue;
 793                         }
 794                         if (!check_range(p, "bsrange", &ul1, &ul2)) {
 795                                 if (ul1 > ul2) {
 796                                         td->max_bs = ul1;
 797                                         td->min_bs = ul2;
 798                                 } else {
 799                                         td->max_bs = ul2;
 800                                         td->min_bs = ul1;
 801                                 }
 802                                 fgetpos(f, &off);
 803                                 continue;
 804                         }
 805                         if (!check_strcnv(p, "bs", &ull)) {
 806                                 td->bs = ull;
 807                                 fgetpos(f, &off);
 808                                 continue;
 809                         }
 810                         if (!check_strcnv(p, "size", &td->file_size)) {
 811                                 fgetpos(f, &off);
 812                                 continue;
 813                         }
 814                         if (!check_strcnv(p, "offset", &td->file_offset)) {
 815                                 fgetpos(f, &off);
 816                                 continue;
 817                         }
 818                         if (!check_strcnv(p, "zonesize", &td->zone_size)) {
 819                                 fgetpos(f, &off);
 820                                 continue;
 821                         }
 822                         if (!check_strcnv(p, "zoneskip", &td->zone_skip)) {
 823                                 fgetpos(f, &off);
 824                                 continue;
 825                         }
 826                         if (!check_strcnv(p, "lockmem", &mlock_size)) {
 827                                 fgetpos(f, &off);
 828                                 continue;
 829                         }
 830                         if (!check_strstore(p, "directory", td->directory)) {
 831                                 fgetpos(f, &off);
 832                                 continue;
 833                         }
 834                         if (!check_str(p, "mem", str_mem_cb, td)) {
 835                                 fgetpos(f, &off);
 836                                 continue;
 837                         }
 838                         if (!check_str(p, "verify", str_verify_cb, td)) {
 839                                 fgetpos(f, &off);
 840                                 continue;
 841                         }
 842                         if (!check_str(p, "rw", str_rw_cb, td)) {
 843                                 fgetpos(f, &off);
 844                                 continue;
 845                         }
 846                         if (!check_str(p, "ioengine", str_ioengine_cb, td)) {
 847                                 fgetpos(f, &off);
 848                                 continue;
 849                         }
 850                         if (!check_strset(p, "create")) {
 851                                 td->create_file = 1;
 852                                 fgetpos(f, &off);
 853                                 continue;
 854                         }
 855                         if (!check_strset(p, "exitall")) {
 856                                 exitall_on_terminate = 1;
 857                                 fgetpos(f, &off);
 858                                 continue;
 859                         }
 860                         if (!check_strset(p, "stonewall")) {
 861                                 td->stonewall = 1;
 862                                 fgetpos(f, &off);
 863                                 continue;
 864                         }
 865                         if (!check_strset(p, "thread")) {
 866                                 td->use_thread = 1;
 867                                 fgetpos(f, &off);
 868                                 continue;
 869                         }
 870                         if (!check_str(p, "iolog", str_iolog_cb, td)) {
 871                                 printf("got read iolog\n");
 872                                 td->read_iolog = 1;
 873                                 td->write_iolog = 0;
 874                                 fgetpos(f, &off);
 875                                 continue;
 876                         }
 877                         if (!td->read_iolog &&
 878                             !check_str(p, "write_iolog", str_iolog_cb, td)) {
 879                                 printf("got write iolog\n");
 880                                 td->write_iolog = 1;
 881                                 fgetpos(f, &off);
 882                                 continue;
 883                         }
 884
 885                         printf("Client%d: bad option %s\n",td->thread_number,p);
 886                         return 1;
 887                 }
 888                 fsetpos(f, &off);
 889
 890                 if (add_job(td, name, 0))
 891                         return 1;
 892         }
 893
 894         free(string);
 895         free(name);
 896         fclose(f);
 897         return 0;
 898 }
 899
 900 static int fill_def_thread(void)
 901 {
 902         memset(&def_thread, 0, sizeof(def_thread));
 903
 904         if (fio_getaffinity(getpid(), &def_thread.cpumask) == -1) {
 905                 perror("sched_getaffinity");
 906                 return 1;
 907         }
 908
 909         /*
 910          * fill globals
 911          */
 912         def_thread.ddir = DDIR_READ;
 913         def_thread.iomix = 0;
 914         def_thread.bs = DEF_BS;
 915         def_thread.min_bs = -1;
 916         def_thread.max_bs = -1;
 917         def_thread.io_engine = DEF_IO_ENGINE;
 918         strcpy(def_thread.io_engine_name, DEF_IO_ENGINE_NAME);
 919         def_thread.odirect = DEF_ODIRECT;
 920         def_thread.ratecycle = DEF_RATE_CYCLE;
 921         def_thread.sequential = DEF_SEQUENTIAL;
 922         def_thread.timeout = DEF_TIMEOUT;
 923         def_thread.create_file = DEF_CREATE;
 924         def_thread.overwrite = DEF_OVERWRITE;
 925         def_thread.invalidate_cache = DEF_INVALIDATE;
 926         def_thread.sync_io = DEF_SYNCIO;
 927         def_thread.mem_type = MEM_MALLOC;
 928         def_thread.bw_avg_time = DEF_BWAVGTIME;
 929         def_thread.create_serialize = DEF_CREATE_SER;
 930         def_thread.create_fsync = DEF_CREATE_FSYNC;
 931         def_thread.loops = DEF_LOOPS;
 932         def_thread.verify = DEF_VERIFY;
 933         def_thread.stonewall = DEF_STONEWALL;
 934         def_thread.numjobs = DEF_NUMJOBS;
 935         def_thread.use_thread = DEF_USE_THREAD;
 936 #ifdef FIO_HAVE_DISK_UTIL
 937         def_thread.do_disk_util = 1;
 938 #endif
 939
 940         return 0;
 941 }
 942
 943 static void usage(char *name)
 944 {
 945         printf("%s\n", fio_version_string);
 946         printf("\t-s IO is sequential\n");
 947         printf("\t-b Block size in KiB for each IO\n");
 948         printf("\t-t Runtime in seconds\n");
 949         printf("\t-R Exit all threads on failure to meet rate goal\n");
 950         printf("\t-o Use O_DIRECT\n");
 951         printf("\t-l Generate per-job latency logs\n");
 952         printf("\t-w Generate per-job bandwidth logs\n");
 953         printf("\t-f Job file (Required)\n");
 954         printf("\t-v Print version info and exit\n");
 955 }
 956
 957 static void parse_cmd_line(int argc, char *argv[])
 958 {
 959         int c;
 960
 961         while ((c = getopt(argc, argv, "s:b:t:r:R:o:f:lwvh")) != EOF) {
 962                 switch (c) {
 963                         case 's':
 964                                 def_thread.sequential = !!atoi(optarg);
 965                                 break;
 966                         case 'b':
 967                                 def_thread.bs = atoi(optarg);
 968                                 def_thread.bs <<= 10;
 969                                 if (!def_thread.bs) {
 970                                         printf("bad block size\n");
 971                                         def_thread.bs = DEF_BS;
 972                                 }
 973                                 break;
 974                         case 't':
 975                                 def_thread.timeout = atoi(optarg);
 976                                 break;
 977                         case 'r':
 978                                 repeatable = !!atoi(optarg);
 979                                 break;
 980                         case 'R':
 981                                 rate_quit = !!atoi(optarg);
 982                                 break;
 983                         case 'o':
 984                                 def_thread.odirect = !!atoi(optarg);
 985                                 break;
 986                         case 'f':
 987                                 ini_file = strdup(optarg);
 988                                 break;
 989                         case 'l':
 990                                 write_lat_log = 1;
 991                                 break;
 992                         case 'w':
 993                                 write_bw_log = 1;
 994                                 break;
 995                         case 'h':
 996                                 usage(argv[0]);
 997                                 exit(0);
 998                         case 'v':
 999                                 printf("%s\n", fio_version_string);
1000                                 exit(0);
1001                 }
1002         }
1003
1004         if (!ini_file && argc > 1 && argv[argc - 1][0] != '-')
1005                 ini_file = strdup(argv[argc - 1]);
1006 }
1007
1008 static void free_shm(void)
1009 {
1010         struct shmid_ds sbuf;
1011
1012         if (threads) {
1013                 shmdt(threads);
1014                 threads = NULL;
1015                 shmctl(shm_id, IPC_RMID, &sbuf);
1016         }
1017 }
1018
1019 static int setup_thread_area(void)
1020 {
1021         /*
1022          * 1024 is too much on some machines, scale max_jobs if
1023          * we get a failure that looks like too large a shm segment
1024          */
1025         do {
1026                 int s = max_jobs * sizeof(struct thread_data);
1027
1028                 shm_id = shmget(0, s, IPC_CREAT | 0600);
1029                 if (shm_id != -1)
1030                         break;
1031                 if (errno != EINVAL) {
1032                         perror("shmget");
1033                         break;
1034                 }
1035
1036                 max_jobs >>= 1;
1037         } while (max_jobs);
1038
1039         if (shm_id == -1)
1040                 return 1;
1041
1042         threads = shmat(shm_id, NULL, 0);
1043         if (threads == (void *) -1) {
1044                 perror("shmat");
1045                 return 1;
1046         }
1047
1048         atexit(free_shm);
1049         return 0;
1050 }
1051
1052 int parse_options(int argc, char *argv[])
1053 {
1054         if (setup_thread_area())
1055                 return 1;
1056         if (fill_def_thread())
1057                 return 1;
1058
1059         parse_cmd_line(argc, argv);
1060
1061         if (!ini_file) {
1062                 printf("Need job file\n");
1063                 usage(argv[0]);
1064                 return 1;
1065         }
1066
1067         if (parse_jobs_ini(ini_file)) {
1068                 usage(argv[0]);
1069                 return 1;
1070         }
1071
1072         return 0;
1073 }