init.c

   1 /*
   2  * This file contains the ini and command liner parser. It will create
   3  * and initialize the specified jobs.
   4  */
   5 #include <stdio.h>
   6 #include <stdlib.h>
   7 #include <unistd.h>
   8 #include <fcntl.h>
   9 #include <ctype.h>
  10 #include <string.h>
  11 #include <errno.h>
  12 #include <sys/ipc.h>
  13 #include <sys/shm.h>
  14 #include <sys/types.h>
  15 #include <sys/stat.h>
  16
  17 #include "fio.h"
  18
  19 /*
  20  * The default options
  21  */
  22 #define DEF_BS                  (4096)
  23 #define DEF_TIMEOUT             (0)
  24 #define DEF_RATE_CYCLE          (1000)
  25 #define DEF_ODIRECT             (1)
  26 #define DEF_IO_ENGINE           (FIO_SYNCIO)
  27 #define DEF_IO_ENGINE_NAME      "sync"
  28 #define DEF_SEQUENTIAL          (1)
  29 #define DEF_RAND_REPEAT         (1)
  30 #define DEF_OVERWRITE           (1)
  31 #define DEF_INVALIDATE          (1)
  32 #define DEF_SYNCIO              (0)
  33 #define DEF_RANDSEED            (0xb1899bedUL)
  34 #define DEF_BWAVGTIME           (500)
  35 #define DEF_CREATE_SER          (1)
  36 #define DEF_CREATE_FSYNC        (1)
  37 #define DEF_LOOPS               (1)
  38 #define DEF_VERIFY              (0)
  39 #define DEF_STONEWALL           (0)
  40 #define DEF_NUMJOBS             (1)
  41 #define DEF_USE_THREAD          (0)
  42 #define DEF_FILE_SIZE           (1024 * 1024 * 1024UL)
  43 #define DEF_ZONE_SIZE           (0)
  44 #define DEF_ZONE_SKIP           (0)
  45 #define DEF_RWMIX_CYCLE         (500)
  46 #define DEF_RWMIX_READ          (50)
  47 #define DEF_NICE                (0)
  48 #define DEF_NR_FILES            (1)
  49 #define DEF_UNLINK              (0)
  50 #define DEF_WRITE_BW_LOG        (0)
  51 #define DEF_WRITE_LAT_LOG       (0)
  52
  53 static int def_timeout = DEF_TIMEOUT;
  54
  55 static char fio_version_string[] = "fio 1.5";
  56
  57 static char **ini_file;
  58 static int max_jobs = MAX_JOBS;
  59
  60 struct thread_data def_thread;
  61 struct thread_data *threads = NULL;
  62
  63 int rate_quit = 0;
  64 int exitall_on_terminate = 0;
  65 int terse_output = 0;
  66 unsigned long long mlock_size = 0;
  67 FILE *f_out = NULL;
  68 FILE *f_err = NULL;
  69
  70 static int write_lat_log = DEF_WRITE_LAT_LOG;
  71 static int write_bw_log = DEF_WRITE_BW_LOG;
  72
  73 /*
  74  * Return a free job structure.
  75  */
  76 static struct thread_data *get_new_job(int global, struct thread_data *parent)
  77 {
  78         struct thread_data *td;
  79
  80         if (global)
  81                 return &def_thread;
  82         if (thread_number >= max_jobs)
  83                 return NULL;
  84
  85         td = &threads[thread_number++];
  86         *td = *parent;
  87         td->name[0] = '\0';
  88
  89         td->thread_number = thread_number;
  90         return td;
  91 }
  92
  93 static void put_job(struct thread_data *td)
  94 {
  95         memset(&threads[td->thread_number - 1], 0, sizeof(*td));
  96         thread_number--;
  97 }
  98
  99 /*
 100  * Adds a job to the list of things todo. Sanitizes the various options
 101  * to make sure we don't have conflicts, and initializes various
 102  * members of td.
 103  */
 104 static int add_job(struct thread_data *td, const char *jobname, int job_add_num)
 105 {
 106         char *ddir_str[] = { "read", "write", "randread", "randwrite",
 107                              "rw", NULL, "randrw" };
 108         struct stat sb;
 109         int numjobs, ddir, i;
 110         struct fio_file *f;
 111
 112 #ifndef FIO_HAVE_LIBAIO
 113         if (td->io_engine == FIO_LIBAIO) {
 114                 log_err("Linux libaio not available\n");
 115                 return 1;
 116         }
 117 #endif
 118 #ifndef FIO_HAVE_POSIXAIO
 119         if (td->io_engine == FIO_POSIXAIO) {
 120                 log_err("posix aio not available\n");
 121                 return 1;
 122         }
 123 #endif
 124
 125         /*
 126          * the def_thread is just for options, it's not a real job
 127          */
 128         if (td == &def_thread)
 129                 return 0;
 130
 131         /*
 132          * Set default io engine, if none set
 133          */
 134         if (!td->io_ops) {
 135                 td->io_ops = load_ioengine(td, DEF_IO_ENGINE_NAME);
 136                 if (!td->io_ops) {
 137                         log_err("default engine %s not there?\n", DEF_IO_ENGINE_NAME);
 138                         return 1;
 139                 }
 140         }
 141
 142         if (td->io_ops->flags & FIO_SYNCIO)
 143                 td->iodepth = 1;
 144         else {
 145                 if (!td->iodepth)
 146                         td->iodepth = td->nr_files;
 147         }
 148
 149         /*
 150          * only really works for sequential io for now, and with 1 file
 151          */
 152         if (td->zone_size && !td->sequential && td->nr_files == 1)
 153                 td->zone_size = 0;
 154
 155         /*
 156          * Reads can do overwrites, we always need to pre-create the file
 157          */
 158         if (td_read(td) || td_rw(td))
 159                 td->overwrite = 1;
 160
 161         td->filetype = FIO_TYPE_FILE;
 162         if (!stat(jobname, &sb)) {
 163                 if (S_ISBLK(sb.st_mode))
 164                         td->filetype = FIO_TYPE_BD;
 165                 else if (S_ISCHR(sb.st_mode))
 166                         td->filetype = FIO_TYPE_CHAR;
 167         }
 168
 169         if (td->odirect)
 170                 td->io_ops->flags |= FIO_RAWIO;
 171
 172         if (td->filetype == FIO_TYPE_FILE) {
 173                 char tmp[PATH_MAX];
 174                 int len = 0;
 175                 int i;
 176
 177                 if (td->directory && td->directory[0] != '\0')
 178                         sprintf(tmp, "%s/", td->directory);
 179
 180                 td->files = malloc(sizeof(struct fio_file) * td->nr_files);
 181
 182                 for_each_file(td, f, i) {
 183                         memset(f, 0, sizeof(*f));
 184                         f->fd = -1;
 185                         f->fileno = i;
 186
 187                         sprintf(tmp + len, "%s.%d.%d", jobname, td->thread_number, i);
 188                         f->file_name = strdup(tmp);
 189                 }
 190         } else {
 191                 td->nr_files = 1;
 192                 td->files = malloc(sizeof(struct fio_file));
 193                 f = &td->files[0];
 194
 195                 memset(f, 0, sizeof(*f));
 196                 f->fd = -1;
 197                 f->file_name = strdup(jobname);
 198         }
 199
 200         for_each_file(td, f, i) {
 201                 f->file_size = td->total_file_size / td->nr_files;
 202                 f->file_offset = td->start_offset;
 203         }
 204
 205         fio_sem_init(&td->mutex, 0);
 206
 207         td->clat_stat[0].min_val = td->clat_stat[1].min_val = ULONG_MAX;
 208         td->slat_stat[0].min_val = td->slat_stat[1].min_val = ULONG_MAX;
 209         td->bw_stat[0].min_val = td->bw_stat[1].min_val = ULONG_MAX;
 210
 211         if (td->min_bs == -1U)
 212                 td->min_bs = td->bs;
 213         if (td->max_bs == -1U)
 214                 td->max_bs = td->bs;
 215         if (td_read(td) && !td_rw(td))
 216                 td->verify = 0;
 217
 218         if (td->stonewall && td->thread_number > 1)
 219                 groupid++;
 220
 221         td->groupid = groupid;
 222
 223         if (setup_rate(td))
 224                 goto err;
 225
 226         if (td->write_lat_log) {
 227                 setup_log(&td->slat_log);
 228                 setup_log(&td->clat_log);
 229         }
 230         if (td->write_bw_log)
 231                 setup_log(&td->bw_log);
 232
 233         if (td->name[0] == '\0')
 234                 snprintf(td->name, sizeof(td->name)-1, "client%d", td->thread_number);
 235
 236         ddir = td->ddir + (!td->sequential << 1) + (td->iomix << 2);
 237
 238         if (!terse_output) {
 239                 if (!job_add_num) {
 240                         if (td->io_ops->flags & FIO_CPUIO)
 241                                 fprintf(f_out, "%s: ioengine=cpu, cpuload=%u, cpucycle=%u\n", td->name, td->cpuload, td->cpucycle);
 242                         else
 243                                 fprintf(f_out, "%s: (g=%d): rw=%s, odir=%d, bs=%d-%d, rate=%d, ioengine=%s, iodepth=%d\n", td->name, td->groupid, ddir_str[ddir], td->odirect, td->min_bs, td->max_bs, td->rate, td->io_ops->name, td->iodepth);
 244                 } else if (job_add_num == 1)
 245                         fprintf(f_out, "...\n");
 246         }
 247
 248         /*
 249          * recurse add identical jobs, clear numjobs and stonewall options
 250          * as they don't apply to sub-jobs
 251          */
 252         numjobs = td->numjobs;
 253         while (--numjobs) {
 254                 struct thread_data *td_new = get_new_job(0, td);
 255
 256                 if (!td_new)
 257                         goto err;
 258
 259                 td_new->numjobs = 1;
 260                 td_new->stonewall = 0;
 261                 job_add_num = numjobs - 1;
 262
 263                 if (add_job(td_new, jobname, job_add_num))
 264                         goto err;
 265         }
 266         return 0;
 267 err:
 268         put_job(td);
 269         return -1;
 270 }
 271
 272 /*
 273  * Initialize the various random states we need (random io, block size ranges,
 274  * read/write mix, etc).
 275  */
 276 int init_random_state(struct thread_data *td)
 277 {
 278         unsigned long seeds[4];
 279         int fd, num_maps, blocks, i;
 280         struct fio_file *f;
 281
 282         fd = open("/dev/urandom", O_RDONLY);
 283         if (fd == -1) {
 284                 td_verror(td, errno);
 285                 return 1;
 286         }
 287
 288         if (read(fd, seeds, sizeof(seeds)) < (int) sizeof(seeds)) {
 289                 td_verror(td, EIO);
 290                 close(fd);
 291                 return 1;
 292         }
 293
 294         close(fd);
 295
 296         os_random_seed(seeds[0], &td->bsrange_state);
 297         os_random_seed(seeds[1], &td->verify_state);
 298         os_random_seed(seeds[2], &td->rwmix_state);
 299
 300         if (td->sequential)
 301                 return 0;
 302
 303         if (td->rand_repeatable)
 304                 seeds[3] = DEF_RANDSEED;
 305
 306         for_each_file(td, f, i) {
 307                 blocks = (f->file_size + td->min_bs - 1) / td->min_bs;
 308                 num_maps = blocks / BLOCKS_PER_MAP;
 309                 f->file_map = malloc(num_maps * sizeof(long));
 310                 f->num_maps = num_maps;
 311                 memset(f->file_map, 0, num_maps * sizeof(long));
 312         }
 313
 314         os_random_seed(seeds[3], &td->random_state);
 315         return 0;
 316 }
 317
 318 static void fill_cpu_mask(os_cpu_mask_t cpumask, int cpu)
 319 {
 320 #ifdef FIO_HAVE_CPU_AFFINITY
 321         unsigned int i;
 322
 323         CPU_ZERO(&cpumask);
 324
 325         for (i = 0; i < sizeof(int) * 8; i++) {
 326                 if ((1 << i) & cpu)
 327                         CPU_SET(i, &cpumask);
 328         }
 329 #endif
 330 }
 331
 332 static unsigned long get_mult_time(char c)
 333 {
 334         switch (c) {
 335                 case 'm':
 336                 case 'M':
 337                         return 60;
 338                 case 'h':
 339                 case 'H':
 340                         return 60 * 60;
 341                 case 'd':
 342                 case 'D':
 343                         return 24 * 60 * 60;
 344                 default:
 345                         return 1;
 346         }
 347 }
 348
 349 static unsigned long get_mult_bytes(char c)
 350 {
 351         switch (c) {
 352                 case 'k':
 353                 case 'K':
 354                         return 1024;
 355                 case 'm':
 356                 case 'M':
 357                         return 1024 * 1024;
 358                 case 'g':
 359                 case 'G':
 360                         return 1024 * 1024 * 1024;
 361                 default:
 362                         return 1;
 363         }
 364 }
 365
 366 /*
 367  * convert string after '=' into decimal value, noting any size suffix
 368  */
 369 static int str_to_decimal(char *p, unsigned long long *val, int kilo)
 370 {
 371         char *str;
 372         int len;
 373
 374         str = strchr(p, '=');
 375         if (!str)
 376                 return 1;
 377
 378         str++;
 379         len = strlen(str);
 380
 381         *val = strtoul(str, NULL, 10);
 382         if (*val == ULONG_MAX && errno == ERANGE)
 383                 return 1;
 384
 385         if (kilo)
 386                 *val *= get_mult_bytes(str[len - 1]);
 387         else
 388                 *val *= get_mult_time(str[len - 1]);
 389         return 0;
 390 }
 391
 392 static int check_str_bytes(char *p, char *name, unsigned long long *val)
 393 {
 394         if (strncmp(p, name, strlen(name) - 1))
 395                 return 1;
 396
 397         return str_to_decimal(p, val, 1);
 398 }
 399
 400 static int check_str_time(char *p, char *name, unsigned long long *val)
 401 {
 402         if (strncmp(p, name, strlen(name) - 1))
 403                 return 1;
 404
 405         return str_to_decimal(p, val, 0);
 406 }
 407
 408 static void strip_blank_front(char **p)
 409 {
 410         char *s = *p;
 411
 412         while (isspace(*s))
 413                 s++;
 414 }
 415
 416 static void strip_blank_end(char *p)
 417 {
 418         char *s = p + strlen(p) - 1;
 419
 420         while (isspace(*s) || iscntrl(*s))
 421                 s--;
 422
 423         *(s + 1) = '\0';
 424 }
 425
 426 typedef int (str_cb_fn)(struct thread_data *, char *);
 427
 428 static int check_str(char *p, char *name, str_cb_fn *cb, struct thread_data *td)
 429 {
 430         char *s;
 431
 432         if (strncmp(p, name, strlen(name)))
 433                 return 1;
 434
 435         s = strstr(p, name);
 436         if (!s)
 437                 return 1;
 438
 439         s = strchr(s, '=');
 440         if (!s)
 441                 return 1;
 442
 443         s++;
 444         strip_blank_front(&s);
 445         return cb(td, s);
 446 }
 447
 448 static int check_strstore(char *p, char *name, char *dest)
 449 {
 450         char *s;
 451
 452         if (strncmp(p, name, strlen(name)))
 453                 return 1;
 454
 455         s = strstr(p, name);
 456         if (!s)
 457                 return 1;
 458
 459         s = strchr(p, '=');
 460         if (!s)
 461                 return 1;
 462
 463         s++;
 464         strip_blank_front(&s);
 465
 466         strcpy(dest, s);
 467         return 0;
 468 }
 469
 470 static int __check_range_bytes(char *str, unsigned long *val)
 471 {
 472         char suffix;
 473
 474         if (sscanf(str, "%lu%c", val, &suffix) == 2) {
 475                 *val *= get_mult_bytes(suffix);
 476                 return 0;
 477         }
 478
 479         if (sscanf(str, "%lu", val) == 1)
 480                 return 0;
 481
 482         return 1;
 483 }
 484
 485 static int check_range_bytes(char *p, char *name, unsigned long *s,
 486                              unsigned long *e)
 487 {
 488         char option[128];
 489         char *str, *p1, *p2;
 490
 491         if (strncmp(p, name, strlen(name)))
 492                 return 1;
 493
 494         strcpy(option, p);
 495         p = option;
 496
 497         str = strstr(p, name);
 498         if (!str)
 499                 return 1;
 500
 501         p += strlen(name);
 502
 503         str = strchr(p, '=');
 504         if (!str)
 505                 return 1;
 506
 507         /*
 508          * 'p' now holds whatever is after the '=' sign
 509          */
 510         p1 = str + 1;
 511
 512         /*
 513          * terminate p1 at the '-' sign
 514          */
 515         p = strchr(p1, '-');
 516         if (!p)
 517                 return 1;
 518
 519         p2 = p + 1;
 520         *p = '\0';
 521
 522         if (!__check_range_bytes(p1, s) && !__check_range_bytes(p2, e))
 523                 return 0;
 524
 525         return 1;
 526 }
 527
 528 static int check_int(char *p, char *name, unsigned int *val)
 529 {
 530         char *str;
 531
 532         if (strncmp(p, name, strlen(name)))
 533                 return 1;
 534
 535         str = strstr(p, name);
 536         if (!str)
 537                 return 1;
 538
 539         str = strchr(p, '=');
 540         if (!str)
 541                 return 1;
 542
 543         str++;
 544
 545         if (sscanf(str, "%u", val) == 1)
 546                 return 0;
 547
 548         return 1;
 549 }
 550
 551 static int check_strset(char *p, char *name)
 552 {
 553         return strncmp(p, name, strlen(name));
 554 }
 555
 556 static int is_empty_or_comment(char *line)
 557 {
 558         unsigned int i;
 559
 560         for (i = 0; i < strlen(line); i++) {
 561                 if (line[i] == ';')
 562                         return 1;
 563                 if (!isspace(line[i]) && !iscntrl(line[i]))
 564                         return 0;
 565         }
 566
 567         return 1;
 568 }
 569
 570 static int str_rw_cb(struct thread_data *td, char *mem)
 571 {
 572         if (!strncmp(mem, "read", 4) || !strncmp(mem, "0", 1)) {
 573                 td->ddir = DDIR_READ;
 574                 td->sequential = 1;
 575                 return 0;
 576         } else if (!strncmp(mem, "randread", 8)) {
 577                 td->ddir = DDIR_READ;
 578                 td->sequential = 0;
 579                 return 0;
 580         } else if (!strncmp(mem, "write", 5) || !strncmp(mem, "1", 1)) {
 581                 td->ddir = DDIR_WRITE;
 582                 td->sequential = 1;
 583                 return 0;
 584         } else if (!strncmp(mem, "randwrite", 9)) {
 585                 td->ddir = DDIR_WRITE;
 586                 td->sequential = 0;
 587                 return 0;
 588         } else if (!strncmp(mem, "rw", 2)) {
 589                 td->ddir = 0;
 590                 td->iomix = 1;
 591                 td->sequential = 1;
 592                 return 0;
 593         } else if (!strncmp(mem, "randrw", 6)) {
 594                 td->ddir = 0;
 595                 td->iomix = 1;
 596                 td->sequential = 0;
 597                 return 0;
 598         }
 599
 600         log_err("fio: data direction: read, write, randread, randwrite, rw, randrw\n");
 601         return 1;
 602 }
 603
 604 static int str_verify_cb(struct thread_data *td, char *mem)
 605 {
 606         if (!strncmp(mem, "0", 1)) {
 607                 td->verify = VERIFY_NONE;
 608                 return 0;
 609         } else if (!strncmp(mem, "md5", 3) || !strncmp(mem, "1", 1)) {
 610                 td->verify = VERIFY_MD5;
 611                 return 0;
 612         } else if (!strncmp(mem, "crc32", 5)) {
 613                 td->verify = VERIFY_CRC32;
 614                 return 0;
 615         }
 616
 617         log_err("fio: verify types: md5, crc32\n");
 618         return 1;
 619 }
 620
 621 static int str_mem_cb(struct thread_data *td, char *mem)
 622 {
 623         if (!strncmp(mem, "malloc", 6)) {
 624                 td->mem_type = MEM_MALLOC;
 625                 return 0;
 626         } else if (!strncmp(mem, "shm", 3)) {
 627                 td->mem_type = MEM_SHM;
 628                 return 0;
 629         } else if (!strncmp(mem, "mmap", 4)) {
 630                 td->mem_type = MEM_MMAP;
 631                 return 0;
 632         }
 633
 634         log_err("fio: mem type: malloc, shm, mmap\n");
 635         return 1;
 636 }
 637
 638 static int str_ioengine_cb(struct thread_data *td, char *str)
 639 {
 640         td->io_ops = load_ioengine(td, str);
 641         if (td->io_ops)
 642                 return 0;
 643
 644         log_err("fio: ioengine: { linuxaio, aio, libaio }, posixaio, sync, mmap, sgio, splice, cpu\n");
 645         return 1;
 646 }
 647
 648 /*
 649  * This is our [ini] type file parser.
 650  */
 651 int parse_jobs_ini(char *file, int stonewall_flag)
 652 {
 653         unsigned int prioclass, prio, cpu, global, il;
 654         unsigned long long ull;
 655         unsigned long ul1, ul2;
 656         struct thread_data *td;
 657         char *string, *name, *tmpbuf;
 658         fpos_t off;
 659         FILE *f;
 660         char *p;
 661         int ret = 0, stonewall;
 662
 663         f = fopen(file, "r");
 664         if (!f) {
 665                 perror("fopen job file");
 666                 return 1;
 667         }
 668
 669         string = malloc(4096);
 670         name = malloc(256);
 671         tmpbuf = malloc(4096);
 672
 673         stonewall = stonewall_flag;
 674         while ((p = fgets(string, 4096, f)) != NULL) {
 675                 if (ret)
 676                         break;
 677                 if (is_empty_or_comment(p))
 678                         continue;
 679                 if (sscanf(p, "[%s]", name) != 1)
 680                         continue;
 681
 682                 global = !strncmp(name, "global", 6);
 683
 684                 name[strlen(name) - 1] = '\0';
 685
 686                 td = get_new_job(global, &def_thread);
 687                 if (!td) {
 688                         ret = 1;
 689                         break;
 690                 }
 691
 692                 /*
 693                  * Seperate multiple job files by a stonewall
 694                  */
 695                 if (!global && stonewall) {
 696                         td->stonewall = stonewall;
 697                         stonewall = 0;
 698                 }
 699
 700                 fgetpos(f, &off);
 701                 while ((p = fgets(string, 4096, f)) != NULL) {
 702                         if (is_empty_or_comment(p))
 703                                 continue;
 704                         if (strstr(p, "["))
 705                                 break;
 706                         strip_blank_front(&p);
 707                         strip_blank_end(p);
 708
 709                         if (!check_int(p, "prio", &prio)) {
 710 #ifndef FIO_HAVE_IOPRIO
 711                                 log_err("io priorities not available\n");
 712                                 ret = 1;
 713                                 break;
 714 #endif
 715                                 td->ioprio |= prio;
 716                                 fgetpos(f, &off);
 717                                 continue;
 718                         }
 719                         if (!check_int(p, "prioclass", &prioclass)) {
 720 #ifndef FIO_HAVE_IOPRIO
 721                                 log_err("io priorities not available\n");
 722                                 ret = 1;
 723                                 break;
 724 #else
 725                                 td->ioprio |= prioclass << IOPRIO_CLASS_SHIFT;
 726                                 fgetpos(f, &off);
 727                                 continue;
 728 #endif
 729                         }
 730                         if (!check_int(p, "direct", &il)) {
 731                                 td->odirect = il;
 732                                 fgetpos(f, &off);
 733                                 continue;
 734                         }
 735                         if (!check_int(p, "rand_repeatable", &il)) {
 736                                 td->rand_repeatable = il;
 737                                 fgetpos(f, &off);
 738                                 continue;
 739                         }
 740                         if (!check_int(p, "rate", &td->rate)) {
 741                                 fgetpos(f, &off);
 742                                 continue;
 743                         }
 744                         if (!check_int(p, "ratemin", &td->ratemin)) {
 745                                 fgetpos(f, &off);
 746                                 continue;
 747                         }
 748                         if (!check_int(p, "ratecycle", &td->ratecycle)) {
 749                                 fgetpos(f, &off);
 750                                 continue;
 751                         }
 752                         if (!check_int(p, "cpuload", &td->cpuload)) {
 753                                 fgetpos(f, &off);
 754                                 continue;
 755                         }
 756                         if (!check_int(p, "cpuchunks", &td->cpucycle)) {
 757                                 fgetpos(f, &off);
 758                                 continue;
 759                         }
 760                         if (!check_int(p, "thinktime", &td->thinktime)) {
 761                                 fgetpos(f, &off);
 762                                 continue;
 763                         }
 764                         if (!check_int(p, "cpumask", &cpu)) {
 765 #ifndef FIO_HAVE_CPU_AFFINITY
 766                                 log_err("cpu affinity not available\n");
 767                                 ret = 1;
 768                                 break;
 769 #endif
 770                                 fill_cpu_mask(td->cpumask, cpu);
 771                                 fgetpos(f, &off);
 772                                 continue;
 773                         }
 774                         if (!check_int(p, "fsync", &td->fsync_blocks)) {
 775                                 fgetpos(f, &off);
 776                                 td->end_fsync = 1;
 777                                 continue;
 778                         }
 779                         if (!check_int(p, "startdelay", &td->start_delay)) {
 780                                 fgetpos(f, &off);
 781                                 continue;
 782                         }
 783                         if (!check_str_time(p, "timeout", &ull)) {
 784                                 td->timeout = ull;
 785                                 fgetpos(f, &off);
 786                                 continue;
 787                         }
 788                         if (!check_int(p, "invalidate", &il)) {
 789                                 td->invalidate_cache = il;
 790                                 fgetpos(f, &off);
 791                                 continue;
 792                         }
 793                         if (!check_int(p, "iodepth", &td->iodepth)) {
 794                                 fgetpos(f, &off);
 795                                 continue;
 796                         }
 797                         if (!check_int(p, "sync", &il)) {
 798                                 td->sync_io = il;
 799                                 fgetpos(f, &off);
 800                                 continue;
 801                         }
 802                         if (!check_int(p, "bwavgtime", &td->bw_avg_time)) {
 803                                 fgetpos(f, &off);
 804                                 continue;
 805                         }
 806                         if (!check_int(p, "create_serialize", &il)) {
 807                                 td->create_serialize = il;
 808                                 fgetpos(f, &off);
 809                                 continue;
 810                         }
 811                         if (!check_int(p, "create_fsync", &il)) {
 812                                 td->create_fsync = il;
 813                                 fgetpos(f, &off);
 814                                 continue;
 815                         }
 816                         if (!check_int(p, "end_fsync", &il)) {
 817                                 td->end_fsync = il;
 818                                 fgetpos(f, &off);
 819                                 continue;
 820                         }
 821                         if (!check_int(p, "loops", &td->loops)) {
 822                                 fgetpos(f, &off);
 823                                 continue;
 824                         }
 825                         if (!check_int(p, "numjobs", &td->numjobs)) {
 826                                 fgetpos(f, &off);
 827                                 continue;
 828                         }
 829                         if (!check_int(p, "overwrite", &il)) {
 830                                 td->overwrite = il;
 831                                 fgetpos(f, &off);
 832                                 continue;
 833                         }
 834                         if (!check_int(p, "rwmixcycle", &td->rwmixcycle)) {
 835                                 fgetpos(f, &off);
 836                                 continue;
 837                         }
 838                         if (!check_int(p, "rwmixread", &il)) {
 839                                 if (il > 100)
 840                                         il = 100;
 841                                 td->rwmixread = il;
 842                                 fgetpos(f, &off);
 843                                 continue;
 844                         }
 845                         if (!check_int(p, "rwmixwrite", &il)) {
 846                                 if (il > 100)
 847                                         il = 100;
 848                                 td->rwmixread = 100 - il;
 849                                 fgetpos(f, &off);
 850                                 continue;
 851                         }
 852                         if (!check_int(p, "nice", &td->nice)) {
 853                                 fgetpos(f, &off);
 854                                 continue;
 855                         }
 856                         if (!check_int(p, "nrfiles", &td->nr_files)) {
 857                                 fgetpos(f, &off);
 858                                 continue;
 859                         }
 860                         if (!check_range_bytes(p, "bsrange", &ul1, &ul2)) {
 861                                 if (ul1 > ul2) {
 862                                         td->max_bs = ul1;
 863                                         td->min_bs = ul2;
 864                                 } else {
 865                                         td->max_bs = ul2;
 866                                         td->min_bs = ul1;
 867                                 }
 868                                 fgetpos(f, &off);
 869                                 continue;
 870                         }
 871                         if (!check_str_bytes(p, "bs", &ull)) {
 872                                 td->bs = ull;
 873                                 fgetpos(f, &off);
 874                                 continue;
 875                         }
 876                         if (!check_str_bytes(p, "size", &td->total_file_size)) {
 877                                 fgetpos(f, &off);
 878                                 continue;
 879                         }
 880                         if (!check_str_bytes(p, "offset", &td->start_offset)) {
 881                                 fgetpos(f, &off);
 882                                 continue;
 883                         }
 884                         if (!check_str_bytes(p, "zonesize", &td->zone_size)) {
 885                                 fgetpos(f, &off);
 886                                 continue;
 887                         }
 888                         if (!check_str_bytes(p, "zoneskip", &td->zone_skip)) {
 889                                 fgetpos(f, &off);
 890                                 continue;
 891                         }
 892                         if (!check_str_bytes(p, "lockmem", &mlock_size)) {
 893                                 fgetpos(f, &off);
 894                                 continue;
 895                         }
 896                         if (!check_strstore(p, "directory", tmpbuf)) {
 897                                 td->directory = strdup(tmpbuf);
 898                                 fgetpos(f, &off);
 899                                 continue;
 900                         }
 901                         if (!check_strstore(p, "name", tmpbuf)) {
 902                                 snprintf(td->name, sizeof(td->name)-1, "%s%d", tmpbuf, td->thread_number);
 903                                 fgetpos(f, &off);
 904                                 continue;
 905                         }
 906                         if (!check_str(p, "mem", str_mem_cb, td)) {
 907                                 fgetpos(f, &off);
 908                                 continue;
 909                         }
 910                         if (!check_str(p, "verify", str_verify_cb, td)) {
 911                                 fgetpos(f, &off);
 912                                 continue;
 913                         }
 914                         if (!check_str(p, "rw", str_rw_cb, td)) {
 915                                 fgetpos(f, &off);
 916                                 continue;
 917                         }
 918                         if (!check_str(p, "ioengine", str_ioengine_cb, td)) {
 919                                 fgetpos(f, &off);
 920                                 continue;
 921                         }
 922                         if (!check_strset(p, "exitall")) {
 923                                 exitall_on_terminate = 1;
 924                                 fgetpos(f, &off);
 925                                 continue;
 926                         }
 927                         if (!check_strset(p, "stonewall")) {
 928                                 td->stonewall = 1;
 929                                 fgetpos(f, &off);
 930                                 continue;
 931                         }
 932                         if (!check_strset(p, "thread")) {
 933                                 td->use_thread = 1;
 934                                 fgetpos(f, &off);
 935                                 continue;
 936                         }
 937                         if (!check_strset(p, "unlink")) {
 938                                 td->unlink = 1;
 939                                 fgetpos(f, &off);
 940                                 continue;
 941                         }
 942                         if (!check_strset(p, "write_bw_log")) {
 943                                 td->write_bw_log = 1;
 944                                 fgetpos(f, &off);
 945                                 continue;
 946                         }
 947                         if (!check_strset(p, "write_lat_log")) {
 948                                 td->write_lat_log = 1;
 949                                 fgetpos(f, &off);
 950                                 continue;
 951                         }
 952                         if (!check_strstore(p, "iolog", tmpbuf)) {
 953                                 if (td->write_iolog) {
 954                                         log_err("fio: read iolog overrides given write_iolog\n");
 955                                         free(td->iolog_file);
 956                                         td->write_iolog = 0;
 957                                 }
 958                                 td->iolog_file = strdup(tmpbuf);
 959                                 td->read_iolog = 1;
 960                                 fgetpos(f, &off);
 961                                 continue;
 962                         }
 963                         if (!check_strstore(p, "write_iolog", tmpbuf)) {
 964                                 if (!td->read_iolog) {
 965                                         td->iolog_file = strdup(tmpbuf);
 966                                         td->write_iolog = 1;
 967                                 } else
 968                                         log_err("fio: read iolog overrides given write_iolog\n");
 969                                 fgetpos(f, &off);
 970                                 continue;
 971                         }
 972                         if (!check_strstore(p, "exec_prerun", tmpbuf)) {
 973                                 td->exec_prerun = strdup(tmpbuf);
 974                                 fgetpos(f, &off);
 975                                 continue;
 976                         }
 977                         if (!check_strstore(p, "exec_postrun", tmpbuf)) {
 978                                 td->exec_postrun = strdup(tmpbuf);
 979                                 fgetpos(f, &off);
 980                                 continue;
 981                         }
 982                         if (!check_strstore(p, "ioscheduler", tmpbuf)) {
 983 #ifndef FIO_HAVE_IOSCHED_SWITCH
 984                                 log_err("io scheduler switching not available\n");
 985                                 ret = 1;
 986                                 break;
 987 #else
 988                                 td->ioscheduler = strdup(tmpbuf);
 989                                 fgetpos(f, &off);
 990                                 continue;
 991 #endif
 992                         }
 993
 994                         /*
 995                          * Don't break here, continue parsing options so we
 996                          * dump all the bad ones. Makes trial/error fixups
 997                          * easier on the user.
 998                          */
 999                         printf("Client%d: bad option %s\n",td->thread_number,p);
1000                         ret = 1;
1001                 }
1002
1003                 if (!ret) {
1004                         fsetpos(f, &off);
1005                         ret = add_job(td, name, 0);
1006                 }
1007                 if (ret)
1008                         break;
1009         }
1010
1011         free(string);
1012         free(name);
1013         free(tmpbuf);
1014         fclose(f);
1015         return ret;
1016 }
1017
1018 static int fill_def_thread(void)
1019 {
1020         memset(&def_thread, 0, sizeof(def_thread));
1021
1022         if (fio_getaffinity(getpid(), &def_thread.cpumask) == -1) {
1023                 perror("sched_getaffinity");
1024                 return 1;
1025         }
1026
1027         /*
1028          * fill globals
1029          */
1030         def_thread.ddir = DDIR_READ;
1031         def_thread.iomix = 0;
1032         def_thread.bs = DEF_BS;
1033         def_thread.min_bs = -1;
1034         def_thread.max_bs = -1;
1035         def_thread.odirect = DEF_ODIRECT;
1036         def_thread.ratecycle = DEF_RATE_CYCLE;
1037         def_thread.sequential = DEF_SEQUENTIAL;
1038         def_thread.timeout = def_timeout;
1039         def_thread.overwrite = DEF_OVERWRITE;
1040         def_thread.invalidate_cache = DEF_INVALIDATE;
1041         def_thread.sync_io = DEF_SYNCIO;
1042         def_thread.mem_type = MEM_MALLOC;
1043         def_thread.bw_avg_time = DEF_BWAVGTIME;
1044         def_thread.create_serialize = DEF_CREATE_SER;
1045         def_thread.create_fsync = DEF_CREATE_FSYNC;
1046         def_thread.loops = DEF_LOOPS;
1047         def_thread.verify = DEF_VERIFY;
1048         def_thread.stonewall = DEF_STONEWALL;
1049         def_thread.numjobs = DEF_NUMJOBS;
1050         def_thread.use_thread = DEF_USE_THREAD;
1051         def_thread.rwmixcycle = DEF_RWMIX_CYCLE;
1052         def_thread.rwmixread = DEF_RWMIX_READ;
1053         def_thread.nice = DEF_NICE;
1054         def_thread.rand_repeatable = DEF_RAND_REPEAT;
1055         def_thread.nr_files = DEF_NR_FILES;
1056         def_thread.unlink = DEF_UNLINK;
1057         def_thread.write_bw_log = write_bw_log;
1058         def_thread.write_lat_log = write_lat_log;
1059 #ifdef FIO_HAVE_DISK_UTIL
1060         def_thread.do_disk_util = 1;
1061 #endif
1062
1063         return 0;
1064 }
1065
1066 static void usage(void)
1067 {
1068         printf("%s\n", fio_version_string);
1069         printf("\t-o Write output to file\n");
1070         printf("\t-t Runtime in seconds\n");
1071         printf("\t-l Generate per-job latency logs\n");
1072         printf("\t-w Generate per-job bandwidth logs\n");
1073         printf("\t-m Minimal (terse) output\n");
1074         printf("\t-v Print version info and exit\n");
1075 }
1076
1077 static int parse_cmd_line(int argc, char *argv[])
1078 {
1079         int c, idx = 1, ini_idx = 0;
1080
1081         while ((c = getopt(argc, argv, "t:o:lwvhm")) != EOF) {
1082                 switch (c) {
1083                         case 't':
1084                                 def_timeout = atoi(optarg);
1085                                 idx = optind;
1086                                 break;
1087                         case 'l':
1088                                 write_lat_log = 1;
1089                                 idx = optind;
1090                                 break;
1091                         case 'w':
1092                                 write_bw_log = 1;
1093                                 idx = optind;
1094                                 break;
1095                         case 'o':
1096                                 f_out = fopen(optarg, "w+");
1097                                 if (!f_out) {
1098                                         perror("fopen output");
1099                                         exit(1);
1100                                 }
1101                                 f_err = f_out;
1102                                 idx = optind;
1103                                 break;
1104                         case 'm':
1105                                 terse_output = 1;
1106                                 idx = optind;
1107                                 break;
1108                         case 'h':
1109                                 usage();
1110                                 exit(0);
1111                         case 'v':
1112                                 printf("%s\n", fio_version_string);
1113                                 exit(0);
1114                 }
1115         }
1116
1117         while (idx < argc) {
1118                 ini_idx++;
1119                 ini_file = realloc(ini_file, ini_idx * sizeof(char *));
1120                 ini_file[ini_idx - 1] = strdup(argv[idx]);
1121                 idx++;
1122         }
1123
1124         if (!f_out) {
1125                 f_out = stdout;
1126                 f_err = stderr;
1127         }
1128
1129         return ini_idx;
1130 }
1131
1132 static void free_shm(void)
1133 {
1134         struct shmid_ds sbuf;
1135
1136         if (threads) {
1137                 shmdt((void *) threads);
1138                 threads = NULL;
1139                 shmctl(shm_id, IPC_RMID, &sbuf);
1140         }
1141 }
1142
1143 /*
1144  * The thread area is shared between the main process and the job
1145  * threads/processes. So setup a shared memory segment that will hold
1146  * all the job info.
1147  */
1148 static int setup_thread_area(void)
1149 {
1150         /*
1151          * 1024 is too much on some machines, scale max_jobs if
1152          * we get a failure that looks like too large a shm segment
1153          */
1154         do {
1155                 size_t size = max_jobs * sizeof(struct thread_data);
1156
1157                 shm_id = shmget(0, size, IPC_CREAT | 0600);
1158                 if (shm_id != -1)
1159                         break;
1160                 if (errno != EINVAL) {
1161                         perror("shmget");
1162                         break;
1163                 }
1164
1165                 max_jobs >>= 1;
1166         } while (max_jobs);
1167
1168         if (shm_id == -1)
1169                 return 1;
1170
1171         threads = shmat(shm_id, NULL, 0);
1172         if (threads == (void *) -1) {
1173                 perror("shmat");
1174                 return 1;
1175         }
1176
1177         atexit(free_shm);
1178         return 0;
1179 }
1180
1181 int parse_options(int argc, char *argv[])
1182 {
1183         int job_files, i;
1184
1185         if (setup_thread_area())
1186                 return 1;
1187         if (fill_def_thread())
1188                 return 1;
1189
1190         job_files = parse_cmd_line(argc, argv);
1191         if (!job_files) {
1192                 log_err("Need job file(s)\n");
1193                 usage();
1194                 return 1;
1195         }
1196
1197         for (i = 0; i < job_files; i++) {
1198                 if (fill_def_thread())
1199                         return 1;
1200                 if (parse_jobs_ini(ini_file[i], i))
1201                         return 1;
1202                 free(ini_file[i]);
1203         }
1204
1205         free(ini_file);
1206         return 0;
1207 }