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 = strstr(p, name);
 406
 407         if (!s)
 408                 return 1;
 409
 410         s = strchr(s, '=');
 411         if (!s)
 412                 return 1;
 413
 414         s++;
 415         strip_blank_front(&s);
 416         return cb(td, s);
 417 }
 418
 419 static int check_strstore(char *p, char *name, char *dest)
 420 {
 421         char *s = strstr(p, name);
 422
 423         if (!s)
 424                 return 1;
 425
 426         s = strchr(p, '=');
 427         if (!s)
 428                 return 1;
 429
 430         s++;
 431         strip_blank_front(&s);
 432
 433         strcpy(dest, s);
 434         return 0;
 435 }
 436
 437 static int __check_range(char *str, unsigned long *val)
 438 {
 439         char suffix;
 440
 441         if (sscanf(str, "%lu%c", val, &suffix) == 2) {
 442                 *val *= get_mult(suffix);
 443                 return 0;
 444         }
 445
 446         if (sscanf(str, "%lu", val) == 1)
 447                 return 0;
 448
 449         return 1;
 450 }
 451
 452 static int check_range(char *p, char *name, unsigned long *s, unsigned long *e)
 453 {
 454         char option[128];
 455         char *str, *p1, *p2;
 456
 457         strcpy(option, p);
 458         p = option;
 459
 460         str = strstr(p, name);
 461         if (!str)
 462                 return 1;
 463
 464         p += strlen(name);
 465
 466         str = strchr(p, '=');
 467         if (!str)
 468                 return 1;
 469
 470         /*
 471          * 'p' now holds whatever is after the '=' sign
 472          */
 473         p1 = str + 1;
 474
 475         /*
 476          * terminate p1 at the '-' sign
 477          */
 478         p = strchr(p1, '-');
 479         if (!p)
 480                 return 1;
 481
 482         p2 = p + 1;
 483         *p = '\0';
 484
 485         if (!__check_range(p1, s) && !__check_range(p2, e))
 486                 return 0;
 487
 488         return 1;
 489 }
 490
 491 static int check_int(char *p, char *name, unsigned int *val)
 492 {
 493         char *str;
 494
 495         if (strncmp(p, name, strlen(name)))
 496                 return 1;
 497
 498         str = strstr(p, name);
 499         if (!str)
 500                 return 1;
 501
 502         str = strchr(p, '=');
 503         if (!str)
 504                 return 1;
 505
 506         str++;
 507
 508         if (sscanf(str, "%u", val) == 1)
 509                 return 0;
 510
 511         return 1;
 512 }
 513
 514 static int check_strset(char *p, char *name)
 515 {
 516         return strncmp(p, name, strlen(name));
 517 }
 518
 519 static int is_empty_or_comment(char *line)
 520 {
 521         unsigned int i;
 522
 523         for (i = 0; i < strlen(line); i++) {
 524                 if (line[i] == ';')
 525                         return 1;
 526                 if (!isspace(line[i]) && !iscntrl(line[i]))
 527                         return 0;
 528         }
 529
 530         return 1;
 531 }
 532
 533 static int str_rw_cb(struct thread_data *td, char *mem)
 534 {
 535         if (!strncmp(mem, "read", 4) || !strncmp(mem, "0", 1)) {
 536                 td->ddir = DDIR_READ;
 537                 td->sequential = 1;
 538                 return 0;
 539         } else if (!strncmp(mem, "randread", 8)) {
 540                 td->ddir = DDIR_READ;
 541                 td->sequential = 0;
 542                 return 0;
 543         } else if (!strncmp(mem, "write", 5) || !strncmp(mem, "1", 1)) {
 544                 td->ddir = DDIR_WRITE;
 545                 td->sequential = 1;
 546                 return 0;
 547         } else if (!strncmp(mem, "randwrite", 9)) {
 548                 td->ddir = DDIR_WRITE;
 549                 td->sequential = 0;
 550                 return 0;
 551         } else if (!strncmp(mem, "rw", 2)) {
 552                 td->ddir = 0;
 553                 td->iomix = 1;
 554                 td->sequential = 1;
 555                 return 0;
 556         } else if (!strncmp(mem, "randrw", 6)) {
 557                 td->ddir = 0;
 558                 td->iomix = 1;
 559                 td->sequential = 0;
 560                 return 0;
 561         }
 562
 563         fprintf(stderr, "bad data direction: %s\n", mem);
 564         return 1;
 565 }
 566
 567 static int str_verify_cb(struct thread_data *td, char *mem)
 568 {
 569         if (!strncmp(mem, "0", 1)) {
 570                 td->verify = VERIFY_NONE;
 571                 return 0;
 572         } else if (!strncmp(mem, "md5", 3) || !strncmp(mem, "1", 1)) {
 573                 td->verify = VERIFY_MD5;
 574                 return 0;
 575         } else if (!strncmp(mem, "crc32", 5)) {
 576                 td->verify = VERIFY_CRC32;
 577                 return 0;
 578         }
 579
 580         fprintf(stderr, "bad verify type: %s\n", mem);
 581         return 1;
 582 }
 583
 584 static int str_mem_cb(struct thread_data *td, char *mem)
 585 {
 586         if (!strncmp(mem, "malloc", 6)) {
 587                 td->mem_type = MEM_MALLOC;
 588                 return 0;
 589         } else if (!strncmp(mem, "shm", 3)) {
 590                 td->mem_type = MEM_SHM;
 591                 return 0;
 592         } else if (!strncmp(mem, "mmap", 4)) {
 593                 td->mem_type = MEM_MMAP;
 594                 return 0;
 595         }
 596
 597         fprintf(stderr, "bad mem type: %s\n", mem);
 598         return 1;
 599 }
 600
 601 static int str_ioengine_cb(struct thread_data *td, char *str)
 602 {
 603         if (!strncmp(str, "linuxaio", 8) || !strncmp(str, "aio", 3) ||
 604             !strncmp(str, "libaio", 6)) {
 605                 strcpy(td->io_engine_name, "libaio");
 606                 td->io_engine = FIO_LIBAIO;
 607                 return 0;
 608         } else if (!strncmp(str, "posixaio", 8)) {
 609                 strcpy(td->io_engine_name, "posixaio");
 610                 td->io_engine = FIO_POSIXAIO;
 611                 return 0;
 612         } else if (!strncmp(str, "sync", 4)) {
 613                 strcpy(td->io_engine_name, "sync");
 614                 td->io_engine = FIO_SYNCIO;
 615                 return 0;
 616         } else if (!strncmp(str, "mmap", 4)) {
 617                 strcpy(td->io_engine_name, "mmap");
 618                 td->io_engine = FIO_MMAPIO;
 619                 return 0;
 620         } else if (!strncmp(str, "sgio", 4)) {
 621                 strcpy(td->io_engine_name, "sgio");
 622                 td->io_engine = FIO_SGIO;
 623                 return 0;
 624         } else if (!strncmp(str, "splice", 6)) {
 625                 strcpy(td->io_engine_name, "splice");
 626                 td->io_engine = FIO_SPLICEIO;
 627                 return 0;
 628         }
 629
 630         fprintf(stderr, "bad ioengine type: %s\n", str);
 631         return 1;
 632 }
 633
 634 static int str_iolog_cb(struct thread_data *td, char *file)
 635 {
 636         strncpy(td->iolog_file, file, sizeof(td->iolog_file) - 1);
 637
 638         return 0;
 639 }
 640
 641 int parse_jobs_ini(char *file)
 642 {
 643         unsigned int prioclass, prio, cpu, global;
 644         unsigned long long ull;
 645         unsigned long ul1, ul2;
 646         struct thread_data *td;
 647         char *string, *name;
 648         fpos_t off;
 649         FILE *f;
 650         char *p;
 651
 652         f = fopen(file, "r");
 653         if (!f) {
 654                 perror("fopen job file");
 655                 return 1;
 656         }
 657
 658         string = malloc(4096);
 659         name = malloc(256);
 660
 661         while ((p = fgets(string, 4096, f)) != NULL) {
 662                 if (is_empty_or_comment(p))
 663                         continue;
 664                 if (sscanf(p, "[%s]", name) != 1)
 665                         continue;
 666
 667                 global = !strncmp(name, "global", 6);
 668
 669                 name[strlen(name) - 1] = '\0';
 670
 671                 td = get_new_job(global, &def_thread);
 672                 if (!td)
 673                         return 1;
 674
 675                 fgetpos(f, &off);
 676                 while ((p = fgets(string, 4096, f)) != NULL) {
 677                         if (is_empty_or_comment(p))
 678                                 continue;
 679                         if (strstr(p, "["))
 680                                 break;
 681                         strip_blank_front(&p);
 682                         strip_blank_end(p);
 683
 684                         if (!check_int(p, "prio", &prio)) {
 685 #ifndef FIO_HAVE_IOPRIO
 686                                 fprintf(stderr, "io priorities not available\n");
 687                                 return 1;
 688 #endif
 689                                 td->ioprio |= prio;
 690                                 fgetpos(f, &off);
 691                                 continue;
 692                         }
 693                         if (!check_int(p, "prioclass", &prioclass)) {
 694 #ifndef FIO_HAVE_IOPRIO
 695                                 fprintf(stderr, "io priorities not available\n");
 696                                 return 1;
 697 #endif
 698                                 td->ioprio |= prioclass << IOPRIO_CLASS_SHIFT;
 699                                 fgetpos(f, &off);
 700                                 continue;
 701                         }
 702                         if (!check_int(p, "direct", &td->odirect)) {
 703                                 fgetpos(f, &off);
 704                                 continue;
 705                         }
 706                         if (!check_int(p, "rate", &td->rate)) {
 707                                 fgetpos(f, &off);
 708                                 continue;
 709                         }
 710                         if (!check_int(p, "ratemin", &td->ratemin)) {
 711                                 fgetpos(f, &off);
 712                                 continue;
 713                         }
 714                         if (!check_int(p, "ratecycle", &td->ratecycle)) {
 715                                 fgetpos(f, &off);
 716                                 continue;
 717                         }
 718                         if (!check_int(p, "thinktime", &td->thinktime)) {
 719                                 fgetpos(f, &off);
 720                                 continue;
 721                         }
 722                         if (!check_int(p, "cpumask", &cpu)) {
 723 #ifndef FIO_HAVE_CPU_AFFINITY
 724                                 fprintf(stderr, "cpu affinity not available\n");
 725                                 return 1;
 726 #endif
 727                                 fill_cpu_mask(td->cpumask, cpu);
 728                                 fgetpos(f, &off);
 729                                 continue;
 730                         }
 731                         if (!check_int(p, "fsync", &td->fsync_blocks)) {
 732                                 fgetpos(f, &off);
 733                                 td->end_fsync = 1;
 734                                 continue;
 735                         }
 736                         if (!check_int(p, "startdelay", &td->start_delay)) {
 737                                 fgetpos(f, &off);
 738                                 continue;
 739                         }
 740                         if (!check_int(p, "timeout", &td->timeout)) {
 741                                 fgetpos(f, &off);
 742                                 continue;
 743                         }
 744                         if (!check_int(p, "invalidate",&td->invalidate_cache)) {
 745                                 fgetpos(f, &off);
 746                                 continue;
 747                         }
 748                         if (!check_int(p, "iodepth", &td->iodepth)) {
 749                                 fgetpos(f, &off);
 750                                 continue;
 751                         }
 752                         if (!check_int(p, "sync", &td->sync_io)) {
 753                                 fgetpos(f, &off);
 754                                 continue;
 755                         }
 756                         if (!check_int(p, "bwavgtime", &td->bw_avg_time)) {
 757                                 fgetpos(f, &off);
 758                                 continue;
 759                         }
 760                         if (!check_int(p, "create_serialize", &td->create_serialize)) {
 761                                 fgetpos(f, &off);
 762                                 continue;
 763                         }
 764                         if (!check_int(p, "create_fsync", &td->create_fsync)) {
 765                                 fgetpos(f, &off);
 766                                 continue;
 767                         }
 768                         if (!check_int(p, "end_fsync", &td->end_fsync)) {
 769                                 fgetpos(f, &off);
 770                                 continue;
 771                         }
 772                         if (!check_int(p, "loops", &td->loops)) {
 773                                 fgetpos(f, &off);
 774                                 continue;
 775                         }
 776                         if (!check_int(p, "numjobs", &td->numjobs)) {
 777                                 fgetpos(f, &off);
 778                                 continue;
 779                         }
 780                         if (!check_int(p, "overwrite", &td->overwrite)) {
 781                                 fgetpos(f, &off);
 782                                 continue;
 783                         }
 784                         if (!check_range(p, "bsrange", &ul1, &ul2)) {
 785                                 if (ul1 > ul2) {
 786                                         td->max_bs = ul1;
 787                                         td->min_bs = ul2;
 788                                 } else {
 789                                         td->max_bs = ul2;
 790                                         td->min_bs = ul1;
 791                                 }
 792                                 fgetpos(f, &off);
 793                                 continue;
 794                         }
 795                         if (!check_strcnv(p, "bs", &ull)) {
 796                                 td->bs = ull;
 797                                 fgetpos(f, &off);
 798                                 continue;
 799                         }
 800                         if (!check_strcnv(p, "size", &td->file_size)) {
 801                                 fgetpos(f, &off);
 802                                 continue;
 803                         }
 804                         if (!check_strcnv(p, "offset", &td->file_offset)) {
 805                                 fgetpos(f, &off);
 806                                 continue;
 807                         }
 808                         if (!check_strcnv(p, "zonesize", &td->zone_size)) {
 809                                 fgetpos(f, &off);
 810                                 continue;
 811                         }
 812                         if (!check_strcnv(p, "zoneskip", &td->zone_skip)) {
 813                                 fgetpos(f, &off);
 814                                 continue;
 815                         }
 816                         if (!check_strcnv(p, "lockmem", &mlock_size)) {
 817                                 fgetpos(f, &off);
 818                                 continue;
 819                         }
 820                         if (!check_strstore(p, "directory", td->directory)) {
 821                                 fgetpos(f, &off);
 822                                 continue;
 823                         }
 824                         if (!check_str(p, "mem", str_mem_cb, td)) {
 825                                 fgetpos(f, &off);
 826                                 continue;
 827                         }
 828                         if (!check_str(p, "verify", str_verify_cb, td)) {
 829                                 fgetpos(f, &off);
 830                                 continue;
 831                         }
 832                         if (!check_str(p, "rw", str_rw_cb, td)) {
 833                                 fgetpos(f, &off);
 834                                 continue;
 835                         }
 836                         if (!check_str(p, "ioengine", str_ioengine_cb, td)) {
 837                                 fgetpos(f, &off);
 838                                 continue;
 839                         }
 840                         if (!check_strset(p, "create")) {
 841                                 td->create_file = 1;
 842                                 fgetpos(f, &off);
 843                                 continue;
 844                         }
 845                         if (!check_strset(p, "exitall")) {
 846                                 exitall_on_terminate = 1;
 847                                 fgetpos(f, &off);
 848                                 continue;
 849                         }
 850                         if (!check_strset(p, "stonewall")) {
 851                                 td->stonewall = 1;
 852                                 fgetpos(f, &off);
 853                                 continue;
 854                         }
 855                         if (!check_strset(p, "thread")) {
 856                                 td->use_thread = 1;
 857                                 fgetpos(f, &off);
 858                                 continue;
 859                         }
 860                         if (!check_str(p, "iolog", str_iolog_cb, td)) {
 861                                 td->iolog = 1;
 862                                 fgetpos(f, &off);
 863                                 continue;
 864                         }
 865
 866                         printf("Client%d: bad option %s\n",td->thread_number,p);
 867                         return 1;
 868                 }
 869                 fsetpos(f, &off);
 870
 871                 if (add_job(td, name, 0))
 872                         return 1;
 873         }
 874
 875         free(string);
 876         free(name);
 877         fclose(f);
 878         return 0;
 879 }
 880
 881 static int fill_def_thread(void)
 882 {
 883         memset(&def_thread, 0, sizeof(def_thread));
 884
 885         if (fio_getaffinity(getpid(), &def_thread.cpumask) == -1) {
 886                 perror("sched_getaffinity");
 887                 return 1;
 888         }
 889
 890         /*
 891          * fill globals
 892          */
 893         def_thread.ddir = DDIR_READ;
 894         def_thread.iomix = 0;
 895         def_thread.bs = DEF_BS;
 896         def_thread.min_bs = -1;
 897         def_thread.max_bs = -1;
 898         def_thread.io_engine = DEF_IO_ENGINE;
 899         strcpy(def_thread.io_engine_name, DEF_IO_ENGINE_NAME);
 900         def_thread.odirect = DEF_ODIRECT;
 901         def_thread.ratecycle = DEF_RATE_CYCLE;
 902         def_thread.sequential = DEF_SEQUENTIAL;
 903         def_thread.timeout = DEF_TIMEOUT;
 904         def_thread.create_file = DEF_CREATE;
 905         def_thread.overwrite = DEF_OVERWRITE;
 906         def_thread.invalidate_cache = DEF_INVALIDATE;
 907         def_thread.sync_io = DEF_SYNCIO;
 908         def_thread.mem_type = MEM_MALLOC;
 909         def_thread.bw_avg_time = DEF_BWAVGTIME;
 910         def_thread.create_serialize = DEF_CREATE_SER;
 911         def_thread.create_fsync = DEF_CREATE_FSYNC;
 912         def_thread.loops = DEF_LOOPS;
 913         def_thread.verify = DEF_VERIFY;
 914         def_thread.stonewall = DEF_STONEWALL;
 915         def_thread.numjobs = DEF_NUMJOBS;
 916         def_thread.use_thread = DEF_USE_THREAD;
 917 #ifdef FIO_HAVE_DISK_UTIL
 918         def_thread.do_disk_util = 1;
 919 #endif
 920
 921         return 0;
 922 }
 923
 924 static void usage(char *name)
 925 {
 926         printf("%s\n", fio_version_string);
 927         printf("\t-s IO is sequential\n");
 928         printf("\t-b Block size in KiB for each IO\n");
 929         printf("\t-t Runtime in seconds\n");
 930         printf("\t-R Exit all threads on failure to meet rate goal\n");
 931         printf("\t-o Use O_DIRECT\n");
 932         printf("\t-l Generate per-job latency logs\n");
 933         printf("\t-w Generate per-job bandwidth logs\n");
 934         printf("\t-f Job file (Required)\n");
 935         printf("\t-v Print version info and exit\n");
 936 }
 937
 938 static void parse_cmd_line(int argc, char *argv[])
 939 {
 940         int c;
 941
 942         while ((c = getopt(argc, argv, "s:b:t:r:R:o:f:lwvh")) != EOF) {
 943                 switch (c) {
 944                         case 's':
 945                                 def_thread.sequential = !!atoi(optarg);
 946                                 break;
 947                         case 'b':
 948                                 def_thread.bs = atoi(optarg);
 949                                 def_thread.bs <<= 10;
 950                                 if (!def_thread.bs) {
 951                                         printf("bad block size\n");
 952                                         def_thread.bs = DEF_BS;
 953                                 }
 954                                 break;
 955                         case 't':
 956                                 def_thread.timeout = atoi(optarg);
 957                                 break;
 958                         case 'r':
 959                                 repeatable = !!atoi(optarg);
 960                                 break;
 961                         case 'R':
 962                                 rate_quit = !!atoi(optarg);
 963                                 break;
 964                         case 'o':
 965                                 def_thread.odirect = !!atoi(optarg);
 966                                 break;
 967                         case 'f':
 968                                 ini_file = strdup(optarg);
 969                                 break;
 970                         case 'l':
 971                                 write_lat_log = 1;
 972                                 break;
 973                         case 'w':
 974                                 write_bw_log = 1;
 975                                 break;
 976                         case 'h':
 977                                 usage(argv[0]);
 978                                 exit(0);
 979                         case 'v':
 980                                 printf("%s\n", fio_version_string);
 981                                 exit(0);
 982                 }
 983         }
 984
 985         if (!ini_file && argc > 1 && argv[argc - 1][0] != '-')
 986                 ini_file = strdup(argv[argc - 1]);
 987 }
 988
 989 static void free_shm(void)
 990 {
 991         struct shmid_ds sbuf;
 992
 993         if (threads) {
 994                 shmdt(threads);
 995                 threads = NULL;
 996                 shmctl(shm_id, IPC_RMID, &sbuf);
 997         }
 998 }
 999
1000 static int setup_thread_area(void)
1001 {
1002         /*
1003          * 1024 is too much on some machines, scale max_jobs if
1004          * we get a failure that looks like too large a shm segment
1005          */
1006         do {
1007                 int s = max_jobs * sizeof(struct thread_data);
1008
1009                 shm_id = shmget(0, s, IPC_CREAT | 0600);
1010                 if (shm_id != -1)
1011                         break;
1012                 if (errno != EINVAL) {
1013                         perror("shmget");
1014                         break;
1015                 }
1016
1017                 max_jobs >>= 1;
1018         } while (max_jobs);
1019
1020         if (shm_id == -1)
1021                 return 1;
1022
1023         threads = shmat(shm_id, NULL, 0);
1024         if (threads == (void *) -1) {
1025                 perror("shmat");
1026                 return 1;
1027         }
1028
1029         atexit(free_shm);
1030         return 0;
1031 }
1032
1033 int parse_options(int argc, char *argv[])
1034 {
1035         if (setup_thread_area())
1036                 return 1;
1037         if (fill_def_thread())
1038                 return 1;
1039
1040         parse_cmd_line(argc, argv);
1041
1042         if (!ini_file) {
1043                 printf("Need job file\n");
1044                 usage(argv[0]);
1045                 return 1;
1046         }
1047
1048         if (parse_jobs_ini(ini_file)) {
1049                 usage(argv[0]);
1050                 return 1;
1051         }
1052
1053         return 0;
1054 }