init.c revision ed33585509a97c4a65e46967cb49419b6a4f8870 
1/*
2 * This file contains job initialization and setup functions.
3 */
4#include <stdio.h>
5#include <stdlib.h>
6#include <unistd.h>
7#include <fcntl.h>
8#include <ctype.h>
9#include <string.h>
10#include <errno.h>
11#include <sys/ipc.h>
12#include <sys/shm.h>
13#include <sys/types.h>
14#include <sys/stat.h>
15
16#include "fio.h"
17#include "parse.h"
18#include "smalloc.h"
19#include "filehash.h"
20#include "verify.h"
21#include "profile.h"
22#include "server.h"
23
24#include "lib/getopt.h"
25
26#include "fio_version.h"
27
28#if FIO_PATCH > 0
29const char fio_version_string[] =	__fio_stringify(FIO_MAJOR) "."	\
30					__fio_stringify(FIO_MINOR) "."	\
31					__fio_stringify(FIO_PATCH);
32#else
33const char fio_version_string[] =	__fio_stringify(FIO_MAJOR) "."	\
34					__fio_stringify(FIO_MINOR);
35#endif
36
37#define FIO_RANDSEED		(0xb1899bedUL)
38
39static char **ini_file;
40static int max_jobs = FIO_MAX_JOBS;
41static int dump_cmdline;
42static int def_timeout;
43
44static struct thread_data def_thread;
45struct thread_data *threads = NULL;
46
47int exitall_on_terminate = 0;
48int terse_output = 0;
49int eta_print;
50unsigned long long mlock_size = 0;
51FILE *f_out = NULL;
52FILE *f_err = NULL;
53char **job_sections = NULL;
54int nr_job_sections = 0;
55char *exec_profile = NULL;
56int warnings_fatal = 0;
57int terse_version = 3;
58int is_backend = 0;
59int nr_clients = 0;
60int log_syslog = 0;
61
62int write_bw_log = 0;
63int read_only = 0;
64
65static int write_lat_log;
66
67static int prev_group_jobs;
68
69unsigned long fio_debug = 0;
70unsigned int fio_debug_jobno = -1;
71unsigned int *fio_debug_jobp = NULL;
72
73static char cmd_optstr[256];
74static int did_arg;
75
76const fio_fp64_t def_percentile_list[FIO_IO_U_LIST_MAX_LEN] = {
77	{ .u.f	=  1.0 },
78	{ .u.f	=  5.0 },
79	{ .u.f	= 10.0 },
80	{ .u.f	= 20.0 },
81	{ .u.f	= 30.0 },
82	{ .u.f	= 40.0 },
83	{ .u.f	= 50.0 },
84	{ .u.f	= 60.0 },
85	{ .u.f	= 70.0 },
86	{ .u.f	= 80.0 },
87	{ .u.f	= 90.0 },
88	{ .u.f	= 95.0 },
89	{ .u.f	= 99.0 },
90	{ .u.f	= 99.5 },
91	{ .u.f	= 99.9 },
92};
93
94#define FIO_CLIENT_FLAG		(1 << 16)
95
96/*
97 * Command line options. These will contain the above, plus a few
98 * extra that only pertain to fio itself and not jobs.
99 */
100static struct option l_opts[FIO_NR_OPTIONS] = {
101	{
102		.name		= (char *) "output",
103		.has_arg	= required_argument,
104		.val		= 'o' | FIO_CLIENT_FLAG,
105	},
106	{
107		.name		= (char *) "timeout",
108		.has_arg	= required_argument,
109		.val		= 't' | FIO_CLIENT_FLAG,
110	},
111	{
112		.name		= (char *) "latency-log",
113		.has_arg	= required_argument,
114		.val		= 'l' | FIO_CLIENT_FLAG,
115	},
116	{
117		.name		= (char *) "bandwidth-log",
118		.has_arg	= required_argument,
119		.val		= 'b' | FIO_CLIENT_FLAG,
120	},
121	{
122		.name		= (char *) "minimal",
123		.has_arg	= optional_argument,
124		.val		= 'm' | FIO_CLIENT_FLAG,
125	},
126	{
127		.name		= (char *) "version",
128		.has_arg	= no_argument,
129		.val		= 'v' | FIO_CLIENT_FLAG,
130	},
131	{
132		.name		= (char *) "help",
133		.has_arg	= no_argument,
134		.val		= 'h' | FIO_CLIENT_FLAG,
135	},
136	{
137		.name		= (char *) "cmdhelp",
138		.has_arg	= optional_argument,
139		.val		= 'c' | FIO_CLIENT_FLAG,
140	},
141	{
142		.name		   = (char *) "enghelp",
143		.has_arg	= optional_argument,
144		.val		    = 'i' | FIO_CLIENT_FLAG,
145	},
146	{
147		.name		= (char *) "showcmd",
148		.has_arg	= no_argument,
149		.val		= 's' | FIO_CLIENT_FLAG,
150	},
151	{
152		.name		= (char *) "readonly",
153		.has_arg	= no_argument,
154		.val		= 'r' | FIO_CLIENT_FLAG,
155	},
156	{
157		.name		= (char *) "eta",
158		.has_arg	= required_argument,
159		.val		= 'e' | FIO_CLIENT_FLAG,
160	},
161	{
162		.name		= (char *) "debug",
163		.has_arg	= required_argument,
164		.val		= 'd' | FIO_CLIENT_FLAG,
165	},
166	{
167		.name		= (char *) "section",
168		.has_arg	= required_argument,
169		.val		= 'x' | FIO_CLIENT_FLAG,
170	},
171	{
172		.name		= (char *) "alloc-size",
173		.has_arg	= required_argument,
174		.val		= 'a' | FIO_CLIENT_FLAG,
175	},
176	{
177		.name		= (char *) "profile",
178		.has_arg	= required_argument,
179		.val		= 'p' | FIO_CLIENT_FLAG,
180	},
181	{
182		.name		= (char *) "warnings-fatal",
183		.has_arg	= no_argument,
184		.val		= 'w' | FIO_CLIENT_FLAG,
185	},
186	{
187		.name		= (char *) "max-jobs",
188		.has_arg	= required_argument,
189		.val		= 'j' | FIO_CLIENT_FLAG,
190	},
191	{
192		.name		= (char *) "terse-version",
193		.has_arg	= required_argument,
194		.val		= 'V' | FIO_CLIENT_FLAG,
195	},
196	{
197		.name		= (char *) "server",
198		.has_arg	= optional_argument,
199		.val		= 'S',
200	},
201	{	.name		= (char *) "daemonize",
202		.has_arg	= required_argument,
203		.val		= 'D',
204	},
205	{
206		.name		= (char *) "client",
207		.has_arg	= required_argument,
208		.val		= 'C',
209	},
210	{
211		.name		= NULL,
212	},
213};
214
215static void free_shm(void)
216{
217	struct shmid_ds sbuf;
218
219	if (threads) {
220		void *tp = threads;
221
222		threads = NULL;
223		file_hash_exit();
224		fio_debug_jobp = NULL;
225		shmdt(tp);
226		shmctl(shm_id, IPC_RMID, &sbuf);
227	}
228
229	scleanup();
230}
231
232/*
233 * The thread area is shared between the main process and the job
234 * threads/processes. So setup a shared memory segment that will hold
235 * all the job info. We use the end of the region for keeping track of
236 * open files across jobs, for file sharing.
237 */
238static int setup_thread_area(void)
239{
240	void *hash;
241
242	if (threads)
243		return 0;
244
245	/*
246	 * 1024 is too much on some machines, scale max_jobs if
247	 * we get a failure that looks like too large a shm segment
248	 */
249	do {
250		size_t size = max_jobs * sizeof(struct thread_data);
251
252		size += file_hash_size;
253		size += sizeof(unsigned int);
254
255		shm_id = shmget(0, size, IPC_CREAT | 0600);
256		if (shm_id != -1)
257			break;
258		if (errno != EINVAL) {
259			perror("shmget");
260			break;
261		}
262
263		max_jobs >>= 1;
264	} while (max_jobs);
265
266	if (shm_id == -1)
267		return 1;
268
269	threads = shmat(shm_id, NULL, 0);
270	if (threads == (void *) -1) {
271		perror("shmat");
272		return 1;
273	}
274
275	memset(threads, 0, max_jobs * sizeof(struct thread_data));
276	hash = (void *) threads + max_jobs * sizeof(struct thread_data);
277	fio_debug_jobp = (void *) hash + file_hash_size;
278	*fio_debug_jobp = -1;
279	file_hash_init(hash);
280	return 0;
281}
282
283/*
284 * Return a free job structure.
285 */
286static struct thread_data *get_new_job(int global, struct thread_data *parent,
287				       int preserve_eo)
288{
289	struct thread_data *td;
290
291	if (global)
292		return &def_thread;
293	if (setup_thread_area()) {
294		log_err("error: failed to setup shm segment\n");
295		return NULL;
296	}
297	if (thread_number >= max_jobs) {
298		log_err("error: maximum number of jobs (%d) reached.\n",
299				max_jobs);
300		return NULL;
301	}
302
303	td = &threads[thread_number++];
304	*td = *parent;
305
306	td->io_ops = NULL;
307	if (!preserve_eo)
308		td->eo = NULL;
309
310	td->o.uid = td->o.gid = -1U;
311
312	dup_files(td, parent);
313	fio_options_mem_dupe(td);
314
315	profile_add_hooks(td);
316
317	td->thread_number = thread_number;
318	return td;
319}
320
321static void put_job(struct thread_data *td)
322{
323	if (td == &def_thread)
324		return;
325
326	profile_td_exit(td);
327
328	if (td->error)
329		log_info("fio: %s\n", td->verror);
330
331	fio_options_free(td);
332	if (td->io_ops)
333		free_ioengine(td);
334
335	memset(&threads[td->thread_number - 1], 0, sizeof(*td));
336	thread_number--;
337}
338
339static int __setup_rate(struct thread_data *td, enum fio_ddir ddir)
340{
341	unsigned int bs = td->o.min_bs[ddir];
342
343	assert(ddir_rw(ddir));
344
345	if (td->o.rate[ddir])
346		td->rate_bps[ddir] = td->o.rate[ddir];
347	else
348		td->rate_bps[ddir] = td->o.rate_iops[ddir] * bs;
349
350	if (!td->rate_bps[ddir]) {
351		log_err("rate lower than supported\n");
352		return -1;
353	}
354
355	td->rate_pending_usleep[ddir] = 0;
356	return 0;
357}
358
359static int setup_rate(struct thread_data *td)
360{
361	int ret = 0;
362
363	if (td->o.rate[DDIR_READ] || td->o.rate_iops[DDIR_READ])
364		ret = __setup_rate(td, DDIR_READ);
365	if (td->o.rate[DDIR_WRITE] || td->o.rate_iops[DDIR_WRITE])
366		ret |= __setup_rate(td, DDIR_WRITE);
367
368	return ret;
369}
370
371static int fixed_block_size(struct thread_options *o)
372{
373	return o->min_bs[DDIR_READ] == o->max_bs[DDIR_READ] &&
374		o->min_bs[DDIR_WRITE] == o->max_bs[DDIR_WRITE] &&
375		o->min_bs[DDIR_READ] == o->min_bs[DDIR_WRITE];
376}
377
378/*
379 * Lazy way of fixing up options that depend on each other. We could also
380 * define option callback handlers, but this is easier.
381 */
382static int fixup_options(struct thread_data *td)
383{
384	struct thread_options *o = &td->o;
385	int ret = 0;
386
387#ifndef FIO_HAVE_PSHARED_MUTEX
388	if (!o->use_thread) {
389		log_info("fio: this platform does not support process shared"
390			 " mutexes, forcing use of threads. Use the 'thread'"
391			 " option to get rid of this warning.\n");
392		o->use_thread = 1;
393		ret = warnings_fatal;
394	}
395#endif
396
397	if (o->write_iolog_file && o->read_iolog_file) {
398		log_err("fio: read iolog overrides write_iolog\n");
399		free(o->write_iolog_file);
400		o->write_iolog_file = NULL;
401		ret = warnings_fatal;
402	}
403
404	/*
405	 * only really works with 1 file
406	 */
407	if (o->zone_size && o->open_files == 1)
408		o->zone_size = 0;
409
410	/*
411	 * If zone_range isn't specified, backward compatibility dictates it
412	 * should be made equal to zone_size.
413	 */
414	if (o->zone_size && !o->zone_range)
415		o->zone_range = o->zone_size;
416
417	/*
418	 * Reads can do overwrites, we always need to pre-create the file
419	 */
420	if (td_read(td) || td_rw(td))
421		o->overwrite = 1;
422
423	if (!o->min_bs[DDIR_READ])
424		o->min_bs[DDIR_READ] = o->bs[DDIR_READ];
425	if (!o->max_bs[DDIR_READ])
426		o->max_bs[DDIR_READ] = o->bs[DDIR_READ];
427	if (!o->min_bs[DDIR_WRITE])
428		o->min_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
429	if (!o->max_bs[DDIR_WRITE])
430		o->max_bs[DDIR_WRITE] = o->bs[DDIR_WRITE];
431
432	o->rw_min_bs = min(o->min_bs[DDIR_READ], o->min_bs[DDIR_WRITE]);
433
434	/*
435	 * For random IO, allow blockalign offset other than min_bs.
436	 */
437	if (!o->ba[DDIR_READ] || !td_random(td))
438		o->ba[DDIR_READ] = o->min_bs[DDIR_READ];
439	if (!o->ba[DDIR_WRITE] || !td_random(td))
440		o->ba[DDIR_WRITE] = o->min_bs[DDIR_WRITE];
441
442	if ((o->ba[DDIR_READ] != o->min_bs[DDIR_READ] ||
443	    o->ba[DDIR_WRITE] != o->min_bs[DDIR_WRITE]) &&
444	    !o->norandommap) {
445		log_err("fio: Any use of blockalign= turns off randommap\n");
446		o->norandommap = 1;
447		ret = warnings_fatal;
448	}
449
450	if (!o->file_size_high)
451		o->file_size_high = o->file_size_low;
452
453	if (o->norandommap && o->verify != VERIFY_NONE
454	    && !fixed_block_size(o))  {
455		log_err("fio: norandommap given for variable block sizes, "
456			"verify disabled\n");
457		o->verify = VERIFY_NONE;
458		ret = warnings_fatal;
459	}
460	if (o->bs_unaligned && (o->odirect || td->io_ops->flags & FIO_RAWIO))
461		log_err("fio: bs_unaligned may not work with raw io\n");
462
463	/*
464	 * thinktime_spin must be less than thinktime
465	 */
466	if (o->thinktime_spin > o->thinktime)
467		o->thinktime_spin = o->thinktime;
468
469	/*
470	 * The low water mark cannot be bigger than the iodepth
471	 */
472	if (o->iodepth_low > o->iodepth || !o->iodepth_low) {
473		/*
474		 * syslet work around - if the workload is sequential,
475		 * we want to let the queue drain all the way down to
476		 * avoid seeking between async threads
477		 */
478		if (!strcmp(td->io_ops->name, "syslet-rw") && !td_random(td))
479			o->iodepth_low = 1;
480		else
481			o->iodepth_low = o->iodepth;
482	}
483
484	/*
485	 * If batch number isn't set, default to the same as iodepth
486	 */
487	if (o->iodepth_batch > o->iodepth || !o->iodepth_batch)
488		o->iodepth_batch = o->iodepth;
489
490	if (o->nr_files > td->files_index)
491		o->nr_files = td->files_index;
492
493	if (o->open_files > o->nr_files || !o->open_files)
494		o->open_files = o->nr_files;
495
496	if (((o->rate[0] + o->rate[1]) && (o->rate_iops[0] + o->rate_iops[1]))||
497	    ((o->ratemin[0] + o->ratemin[1]) && (o->rate_iops_min[0] +
498		o->rate_iops_min[1]))) {
499		log_err("fio: rate and rate_iops are mutually exclusive\n");
500		ret = 1;
501	}
502	if ((o->rate[0] < o->ratemin[0]) || (o->rate[1] < o->ratemin[1]) ||
503	    (o->rate_iops[0] < o->rate_iops_min[0]) ||
504	    (o->rate_iops[1] < o->rate_iops_min[1])) {
505		log_err("fio: minimum rate exceeds rate\n");
506		ret = 1;
507	}
508
509	if (!o->timeout && o->time_based) {
510		log_err("fio: time_based requires a runtime/timeout setting\n");
511		o->time_based = 0;
512		ret = warnings_fatal;
513	}
514
515	if (o->fill_device && !o->size)
516		o->size = -1ULL;
517
518	if (o->verify != VERIFY_NONE) {
519		if (td_write(td) && o->do_verify && o->numjobs > 1) {
520			log_info("Multiple writers may overwrite blocks that "
521				"belong to other jobs. This can cause "
522				"verification failures.\n");
523			ret = warnings_fatal;
524		}
525
526		o->refill_buffers = 1;
527		if (o->max_bs[DDIR_WRITE] != o->min_bs[DDIR_WRITE] &&
528		    !o->verify_interval)
529			o->verify_interval = o->min_bs[DDIR_WRITE];
530	}
531
532	if (o->pre_read) {
533		o->invalidate_cache = 0;
534		if (td->io_ops->flags & FIO_PIPEIO) {
535			log_info("fio: cannot pre-read files with an IO engine"
536				 " that isn't seekable. Pre-read disabled.\n");
537			ret = warnings_fatal;
538		}
539	}
540
541#ifndef FIO_HAVE_FDATASYNC
542	if (o->fdatasync_blocks) {
543		log_info("fio: this platform does not support fdatasync()"
544			 " falling back to using fsync().  Use the 'fsync'"
545			 " option instead of 'fdatasync' to get rid of"
546			 " this warning\n");
547		o->fsync_blocks = o->fdatasync_blocks;
548		o->fdatasync_blocks = 0;
549		ret = warnings_fatal;
550	}
551#endif
552
553	return ret;
554}
555
556/*
557 * This function leaks the buffer
558 */
559static char *to_kmg(unsigned int val)
560{
561	char *buf = malloc(32);
562	char post[] = { 0, 'K', 'M', 'G', 'P', 'E', 0 };
563	char *p = post;
564
565	do {
566		if (val & 1023)
567			break;
568
569		val >>= 10;
570		p++;
571	} while (*p);
572
573	snprintf(buf, 31, "%u%c", val, *p);
574	return buf;
575}
576
577/* External engines are specified by "external:name.o") */
578static const char *get_engine_name(const char *str)
579{
580	char *p = strstr(str, ":");
581
582	if (!p)
583		return str;
584
585	p++;
586	strip_blank_front(&p);
587	strip_blank_end(p);
588	return p;
589}
590
591static int exists_and_not_file(const char *filename)
592{
593	struct stat sb;
594
595	if (lstat(filename, &sb) == -1)
596		return 0;
597
598	/* \\.\ is the device namespace in Windows, where every file
599	 * is a device node */
600	if (S_ISREG(sb.st_mode) && strncmp(filename, "\\\\.\\", 4) != 0)
601		return 0;
602
603	return 1;
604}
605
606static void td_fill_rand_seeds_os(struct thread_data *td)
607{
608	os_random_seed(td->rand_seeds[0], &td->bsrange_state);
609	os_random_seed(td->rand_seeds[1], &td->verify_state);
610	os_random_seed(td->rand_seeds[2], &td->rwmix_state);
611
612	if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
613		os_random_seed(td->rand_seeds[3], &td->next_file_state);
614
615	os_random_seed(td->rand_seeds[5], &td->file_size_state);
616	os_random_seed(td->rand_seeds[6], &td->trim_state);
617
618	if (!td_random(td))
619		return;
620
621	if (td->o.rand_repeatable)
622		td->rand_seeds[4] = FIO_RANDSEED * td->thread_number;
623
624	os_random_seed(td->rand_seeds[4], &td->random_state);
625}
626
627static void td_fill_rand_seeds_internal(struct thread_data *td)
628{
629	init_rand_seed(&td->__bsrange_state, td->rand_seeds[0]);
630	init_rand_seed(&td->__verify_state, td->rand_seeds[1]);
631	init_rand_seed(&td->__rwmix_state, td->rand_seeds[2]);
632
633	if (td->o.file_service_type == FIO_FSERVICE_RANDOM)
634		init_rand_seed(&td->__next_file_state, td->rand_seeds[3]);
635
636	init_rand_seed(&td->__file_size_state, td->rand_seeds[5]);
637	init_rand_seed(&td->__trim_state, td->rand_seeds[6]);
638
639	if (!td_random(td))
640		return;
641
642	if (td->o.rand_repeatable)
643		td->rand_seeds[4] = FIO_RANDSEED * td->thread_number;
644
645	init_rand_seed(&td->__random_state, td->rand_seeds[4]);
646}
647
648void td_fill_rand_seeds(struct thread_data *td)
649{
650	if (td->o.use_os_rand)
651		td_fill_rand_seeds_os(td);
652	else
653		td_fill_rand_seeds_internal(td);
654
655	init_rand_seed(&td->buf_state, td->rand_seeds[7]);
656}
657
658/*
659 * Initialize the various random states we need (random io, block size ranges,
660 * read/write mix, etc).
661 */
662static int init_random_state(struct thread_data *td)
663{
664	int fd;
665
666	fd = open("/dev/urandom", O_RDONLY);
667	if (fd == -1) {
668		td_verror(td, errno, "open");
669		return 1;
670	}
671
672	if (read(fd, td->rand_seeds, sizeof(td->rand_seeds)) <
673	    (int) sizeof(td->rand_seeds)) {
674		td_verror(td, EIO, "read");
675		close(fd);
676		return 1;
677	}
678
679	close(fd);
680	td_fill_rand_seeds(td);
681	return 0;
682}
683
684/*
685 * Initializes the ioengine configured for a job, if it has not been done so
686 * already.
687 */
688int ioengine_load(struct thread_data *td)
689{
690	const char *engine;
691
692	/*
693	 * Engine has already been loaded.
694	 */
695	if (td->io_ops)
696		return 0;
697
698	engine = get_engine_name(td->o.ioengine);
699	td->io_ops = load_ioengine(td, engine);
700	if (!td->io_ops) {
701		log_err("fio: failed to load engine %s\n", engine);
702		return 1;
703	}
704
705	if (td->io_ops->option_struct_size && td->io_ops->options) {
706		/*
707		 * In cases where td->eo is set, clone it for a child thread.
708		 * This requires that the parent thread has the same ioengine,
709		 * but that requirement must be enforced by the code which
710		 * cloned the thread.
711		 */
712		void *origeo = td->eo;
713		/*
714		 * Otherwise use the default thread options.
715		 */
716		if (!origeo && td != &def_thread && def_thread.eo &&
717		    def_thread.io_ops->options == td->io_ops->options)
718			origeo = def_thread.eo;
719
720		options_init(td->io_ops->options);
721		td->eo = malloc(td->io_ops->option_struct_size);
722		/*
723		 * Use the default thread as an option template if this uses the
724		 * same options structure and there are non-default options
725		 * used.
726		 */
727		if (origeo) {
728			memcpy(td->eo, origeo, td->io_ops->option_struct_size);
729			options_mem_dupe(td->eo, td->io_ops->options);
730		} else {
731			memset(td->eo, 0, td->io_ops->option_struct_size);
732			fill_default_options(td->eo, td->io_ops->options);
733		}
734		*(struct thread_data **)td->eo = td;
735	}
736
737	return 0;
738}
739
740/*
741 * Adds a job to the list of things todo. Sanitizes the various options
742 * to make sure we don't have conflicts, and initializes various
743 * members of td.
744 */
745static int add_job(struct thread_data *td, const char *jobname, int job_add_num)
746{
747	const char *ddir_str[] = { NULL, "read", "write", "rw", NULL,
748				   "randread", "randwrite", "randrw" };
749	unsigned int i;
750	char fname[PATH_MAX];
751	int numjobs, file_alloced;
752
753	/*
754	 * the def_thread is just for options, it's not a real job
755	 */
756	if (td == &def_thread)
757		return 0;
758
759	/*
760	 * if we are just dumping the output command line, don't add the job
761	 */
762	if (dump_cmdline) {
763		put_job(td);
764		return 0;
765	}
766
767	if (profile_td_init(td))
768		goto err;
769
770	if (ioengine_load(td))
771		goto err;
772
773	if (td->o.use_thread)
774		nr_thread++;
775	else
776		nr_process++;
777
778	if (td->o.odirect)
779		td->io_ops->flags |= FIO_RAWIO;
780
781	file_alloced = 0;
782	if (!td->o.filename && !td->files_index && !td->o.read_iolog_file) {
783		file_alloced = 1;
784
785		if (td->o.nr_files == 1 && exists_and_not_file(jobname))
786			add_file(td, jobname);
787		else {
788			for (i = 0; i < td->o.nr_files; i++) {
789				sprintf(fname, "%s.%d.%d", jobname,
790							td->thread_number, i);
791				add_file(td, fname);
792			}
793		}
794	}
795
796	if (fixup_options(td))
797		goto err;
798
799	/*
800	 * IO engines only need this for option callbacks, and the address may
801	 * change in subprocesses.
802	 */
803	if (td->eo)
804		*(struct thread_data **)td->eo = NULL;
805
806	if (td->io_ops->flags & FIO_DISKLESSIO) {
807		struct fio_file *f;
808
809		for_each_file(td, f, i)
810			f->real_file_size = -1ULL;
811	}
812
813	td->mutex = fio_mutex_init(0);
814
815	td->ts.clat_percentiles = td->o.clat_percentiles;
816	if (td->o.overwrite_plist)
817		memcpy(td->ts.percentile_list, td->o.percentile_list, sizeof(td->o.percentile_list));
818	else
819		memcpy(td->ts.percentile_list, def_percentile_list, sizeof(def_percentile_list));
820
821	td->ts.clat_stat[0].min_val = td->ts.clat_stat[1].min_val = ULONG_MAX;
822	td->ts.slat_stat[0].min_val = td->ts.slat_stat[1].min_val = ULONG_MAX;
823	td->ts.lat_stat[0].min_val = td->ts.lat_stat[1].min_val = ULONG_MAX;
824	td->ts.bw_stat[0].min_val = td->ts.bw_stat[1].min_val = ULONG_MAX;
825	td->ddir_seq_nr = td->o.ddir_seq_nr;
826
827	if ((td->o.stonewall || td->o.new_group) && prev_group_jobs) {
828		prev_group_jobs = 0;
829		groupid++;
830	}
831
832	td->groupid = groupid;
833	prev_group_jobs++;
834
835	if (init_random_state(td))
836		goto err;
837
838	if (setup_rate(td))
839		goto err;
840
841	if (td->o.write_lat_log) {
842		setup_log(&td->lat_log, td->o.log_avg_msec);
843		setup_log(&td->slat_log, td->o.log_avg_msec);
844		setup_log(&td->clat_log, td->o.log_avg_msec);
845	}
846	if (td->o.write_bw_log)
847		setup_log(&td->bw_log, td->o.log_avg_msec);
848	if (td->o.write_iops_log)
849		setup_log(&td->iops_log, td->o.log_avg_msec);
850
851	if (!td->o.name)
852		td->o.name = strdup(jobname);
853
854	if (!terse_output) {
855		if (!job_add_num) {
856			if (!strcmp(td->io_ops->name, "cpuio")) {
857				log_info("%s: ioengine=cpu, cpuload=%u,"
858					 " cpucycle=%u\n", td->o.name,
859							td->o.cpuload,
860							td->o.cpucycle);
861			} else {
862				char *c1, *c2, *c3, *c4;
863
864				c1 = to_kmg(td->o.min_bs[DDIR_READ]);
865				c2 = to_kmg(td->o.max_bs[DDIR_READ]);
866				c3 = to_kmg(td->o.min_bs[DDIR_WRITE]);
867				c4 = to_kmg(td->o.max_bs[DDIR_WRITE]);
868
869				log_info("%s: (g=%d): rw=%s, bs=%s-%s/%s-%s,"
870					 " ioengine=%s, iodepth=%u\n",
871						td->o.name, td->groupid,
872						ddir_str[td->o.td_ddir],
873						c1, c2, c3, c4,
874						td->io_ops->name,
875						td->o.iodepth);
876
877				free(c1);
878				free(c2);
879				free(c3);
880				free(c4);
881			}
882		} else if (job_add_num == 1)
883			log_info("...\n");
884	}
885
886	/*
887	 * recurse add identical jobs, clear numjobs and stonewall options
888	 * as they don't apply to sub-jobs
889	 */
890	numjobs = td->o.numjobs;
891	while (--numjobs) {
892		struct thread_data *td_new = get_new_job(0, td, 1);
893
894		if (!td_new)
895			goto err;
896
897		td_new->o.numjobs = 1;
898		td_new->o.stonewall = 0;
899		td_new->o.new_group = 0;
900
901		if (file_alloced) {
902			td_new->o.filename = NULL;
903			td_new->files_index = 0;
904			td_new->files_size = 0;
905			td_new->files = NULL;
906		}
907
908		job_add_num = numjobs - 1;
909
910		if (add_job(td_new, jobname, job_add_num))
911			goto err;
912	}
913
914	return 0;
915err:
916	put_job(td);
917	return -1;
918}
919
920/*
921 * Parse as if 'o' was a command line
922 */
923void add_job_opts(const char **o)
924{
925	struct thread_data *td, *td_parent;
926	int i, in_global = 1;
927	char jobname[32];
928
929	i = 0;
930	td_parent = td = NULL;
931	while (o[i]) {
932		if (!strncmp(o[i], "name", 4)) {
933			in_global = 0;
934			if (td)
935				add_job(td, jobname, 0);
936			td = NULL;
937			sprintf(jobname, "%s", o[i] + 5);
938		}
939		if (in_global && !td_parent)
940			td_parent = get_new_job(1, &def_thread, 0);
941		else if (!in_global && !td) {
942			if (!td_parent)
943				td_parent = &def_thread;
944			td = get_new_job(0, td_parent, 0);
945		}
946		if (in_global)
947			fio_options_parse(td_parent, (char **) &o[i], 1);
948		else
949			fio_options_parse(td, (char **) &o[i], 1);
950		i++;
951	}
952
953	if (td)
954		add_job(td, jobname, 0);
955}
956
957static int skip_this_section(const char *name)
958{
959	int i;
960
961	if (!nr_job_sections)
962		return 0;
963	if (!strncmp(name, "global", 6))
964		return 0;
965
966	for (i = 0; i < nr_job_sections; i++)
967		if (!strcmp(job_sections[i], name))
968			return 0;
969
970	return 1;
971}
972
973static int is_empty_or_comment(char *line)
974{
975	unsigned int i;
976
977	for (i = 0; i < strlen(line); i++) {
978		if (line[i] == ';')
979			return 1;
980		if (line[i] == '#')
981			return 1;
982		if (!isspace((int) line[i]) && !iscntrl((int) line[i]))
983			return 0;
984	}
985
986	return 1;
987}
988
989/*
990 * This is our [ini] type file parser.
991 */
992int parse_jobs_ini(char *file, int is_buf, int stonewall_flag)
993{
994	unsigned int global;
995	struct thread_data *td;
996	char *string, *name;
997	FILE *f;
998	char *p;
999	int ret = 0, stonewall;
1000	int first_sect = 1;
1001	int skip_fgets = 0;
1002	int inside_skip = 0;
1003	char **opts;
1004	int i, alloc_opts, num_opts;
1005
1006	if (is_buf)
1007		f = NULL;
1008	else {
1009		if (!strcmp(file, "-"))
1010			f = stdin;
1011		else
1012			f = fopen(file, "r");
1013
1014		if (!f) {
1015			perror("fopen job file");
1016			return 1;
1017		}
1018	}
1019
1020	string = malloc(4096);
1021
1022	/*
1023	 * it's really 256 + small bit, 280 should suffice
1024	 */
1025	name = malloc(280);
1026	memset(name, 0, 280);
1027
1028	alloc_opts = 8;
1029	opts = malloc(sizeof(char *) * alloc_opts);
1030	num_opts = 0;
1031
1032	stonewall = stonewall_flag;
1033	do {
1034		/*
1035		 * if skip_fgets is set, we already have loaded a line we
1036		 * haven't handled.
1037		 */
1038		if (!skip_fgets) {
1039			if (is_buf)
1040				p = strsep(&file, "\n");
1041			else
1042				p = fgets(string, 4096, f);
1043			if (!p)
1044				break;
1045		}
1046
1047		skip_fgets = 0;
1048		strip_blank_front(&p);
1049		strip_blank_end(p);
1050
1051		if (is_empty_or_comment(p))
1052			continue;
1053		if (sscanf(p, "[%255[^\n]]", name) != 1) {
1054			if (inside_skip)
1055				continue;
1056			log_err("fio: option <%s> outside of [] job section\n",
1057									p);
1058			break;
1059		}
1060
1061		name[strlen(name) - 1] = '\0';
1062
1063		if (skip_this_section(name)) {
1064			inside_skip = 1;
1065			continue;
1066		} else
1067			inside_skip = 0;
1068
1069		global = !strncmp(name, "global", 6);
1070
1071		if (dump_cmdline) {
1072			if (first_sect)
1073				log_info("fio ");
1074			if (!global)
1075				log_info("--name=%s ", name);
1076			first_sect = 0;
1077		}
1078
1079		td = get_new_job(global, &def_thread, 0);
1080		if (!td) {
1081			ret = 1;
1082			break;
1083		}
1084
1085		/*
1086		 * Seperate multiple job files by a stonewall
1087		 */
1088		if (!global && stonewall) {
1089			td->o.stonewall = stonewall;
1090			stonewall = 0;
1091		}
1092
1093		num_opts = 0;
1094		memset(opts, 0, alloc_opts * sizeof(char *));
1095
1096		while (1) {
1097			if (is_buf)
1098				p = strsep(&file, "\n");
1099			else
1100				p = fgets(string, 4096, f);
1101			if (!p)
1102				break;
1103
1104			if (is_empty_or_comment(p))
1105				continue;
1106
1107			strip_blank_front(&p);
1108
1109			/*
1110			 * new section, break out and make sure we don't
1111			 * fgets() a new line at the top.
1112			 */
1113			if (p[0] == '[') {
1114				skip_fgets = 1;
1115				break;
1116			}
1117
1118			strip_blank_end(p);
1119
1120			if (num_opts == alloc_opts) {
1121				alloc_opts <<= 1;
1122				opts = realloc(opts,
1123						alloc_opts * sizeof(char *));
1124			}
1125
1126			opts[num_opts] = strdup(p);
1127			num_opts++;
1128		}
1129
1130		ret = fio_options_parse(td, opts, num_opts);
1131		if (!ret) {
1132			if (dump_cmdline)
1133				for (i = 0; i < num_opts; i++)
1134					log_info("--%s ", opts[i]);
1135
1136			ret = add_job(td, name, 0);
1137		} else {
1138			log_err("fio: job %s dropped\n", name);
1139			put_job(td);
1140		}
1141
1142		for (i = 0; i < num_opts; i++)
1143			free(opts[i]);
1144		num_opts = 0;
1145	} while (!ret);
1146
1147	if (dump_cmdline)
1148		log_info("\n");
1149
1150	i = 0;
1151	while (i < nr_job_sections) {
1152		free(job_sections[i]);
1153		i++;
1154	}
1155
1156	for (i = 0; i < num_opts; i++)
1157		free(opts[i]);
1158
1159	free(string);
1160	free(name);
1161	free(opts);
1162	if (!is_buf && f != stdin)
1163		fclose(f);
1164	return ret;
1165}
1166
1167static int fill_def_thread(void)
1168{
1169	memset(&def_thread, 0, sizeof(def_thread));
1170
1171	fio_getaffinity(getpid(), &def_thread.o.cpumask);
1172	def_thread.o.timeout = def_timeout;
1173
1174	/*
1175	 * fill default options
1176	 */
1177	fio_fill_default_options(&def_thread);
1178	return 0;
1179}
1180
1181static void usage(const char *name)
1182{
1183	printf("fio %s\n", fio_version_string);
1184	printf("%s [options] [job options] <job file(s)>\n", name);
1185	printf("  --debug=options\tEnable debug logging. May be one/more of:\n"
1186		"\t\t\tprocess,file,io,mem,blktrace,verify,random,parse,\n"
1187		"\t\t\tdiskutil,job,mutex,profile,time,net\n");
1188	printf("  --output\t\tWrite output to file\n");
1189	printf("  --timeout\t\tRuntime in seconds\n");
1190	printf("  --latency-log\t\tGenerate per-job latency logs\n");
1191	printf("  --bandwidth-log\tGenerate per-job bandwidth logs\n");
1192	printf("  --minimal\t\tMinimal (terse) output\n");
1193	printf("  --version\t\tPrint version info and exit\n");
1194	printf("  --terse-version=x\tSet terse version output format to 'x'\n");
1195	printf("  --help\t\tPrint this page\n");
1196	printf("  --cmdhelp=cmd\t\tPrint command help, \"all\" for all of"
1197		" them\n");
1198	printf("  --enghelp=engine\tPrint ioengine help, or list"
1199		" available ioengines\n");
1200	printf("  --enghelp=engine,cmd\tPrint help for an ioengine"
1201		" cmd\n");
1202	printf("  --showcmd\t\tTurn a job file into command line options\n");
1203	printf("  --eta=when\t\tWhen ETA estimate should be printed\n");
1204	printf("            \t\tMay be \"always\", \"never\" or \"auto\"\n");
1205	printf("  --readonly\t\tTurn on safety read-only checks, preventing"
1206		" writes\n");
1207	printf("  --section=name\tOnly run specified section in job file\n");
1208	printf("  --alloc-size=kb\tSet smalloc pool to this size in kb"
1209		" (def 1024)\n");
1210	printf("  --warnings-fatal\tFio parser warnings are fatal\n");
1211	printf("  --max-jobs=nr\t\tMaximum number of threads/processes to support\n");
1212	printf("  --server=args\t\tStart a backend fio server\n");
1213	printf("  --daemonize=pidfile\tBackground fio server, write pid to file\n");
1214	printf("  --client=hostname\tTalk to remote backend fio server at hostname\n");
1215	printf("\nFio was written by Jens Axboe <jens.axboe@oracle.com>");
1216	printf("\n                 Jens Axboe <jaxboe@fusionio.com>\n");
1217}
1218
1219#ifdef FIO_INC_DEBUG
1220struct debug_level debug_levels[] = {
1221	{ .name = "process",	.shift = FD_PROCESS, },
1222	{ .name = "file",	.shift = FD_FILE, },
1223	{ .name = "io",		.shift = FD_IO, },
1224	{ .name = "mem",	.shift = FD_MEM, },
1225	{ .name = "blktrace",	.shift = FD_BLKTRACE },
1226	{ .name = "verify",	.shift = FD_VERIFY },
1227	{ .name = "random",	.shift = FD_RANDOM },
1228	{ .name = "parse",	.shift = FD_PARSE },
1229	{ .name = "diskutil",	.shift = FD_DISKUTIL },
1230	{ .name = "job",	.shift = FD_JOB },
1231	{ .name = "mutex",	.shift = FD_MUTEX },
1232	{ .name	= "profile",	.shift = FD_PROFILE },
1233	{ .name = "time",	.shift = FD_TIME },
1234	{ .name = "net",	.shift = FD_NET },
1235	{ .name = NULL, },
1236};
1237
1238static int set_debug(const char *string)
1239{
1240	struct debug_level *dl;
1241	char *p = (char *) string;
1242	char *opt;
1243	int i;
1244
1245	if (!strcmp(string, "?") || !strcmp(string, "help")) {
1246		log_info("fio: dumping debug options:");
1247		for (i = 0; debug_levels[i].name; i++) {
1248			dl = &debug_levels[i];
1249			log_info("%s,", dl->name);
1250		}
1251		log_info("all\n");
1252		return 1;
1253	}
1254
1255	while ((opt = strsep(&p, ",")) != NULL) {
1256		int found = 0;
1257
1258		if (!strncmp(opt, "all", 3)) {
1259			log_info("fio: set all debug options\n");
1260			fio_debug = ~0UL;
1261			continue;
1262		}
1263
1264		for (i = 0; debug_levels[i].name; i++) {
1265			dl = &debug_levels[i];
1266			found = !strncmp(opt, dl->name, strlen(dl->name));
1267			if (!found)
1268				continue;
1269
1270			if (dl->shift == FD_JOB) {
1271				opt = strchr(opt, ':');
1272				if (!opt) {
1273					log_err("fio: missing job number\n");
1274					break;
1275				}
1276				opt++;
1277				fio_debug_jobno = atoi(opt);
1278				log_info("fio: set debug jobno %d\n",
1279							fio_debug_jobno);
1280			} else {
1281				log_info("fio: set debug option %s\n", opt);
1282				fio_debug |= (1UL << dl->shift);
1283			}
1284			break;
1285		}
1286
1287		if (!found)
1288			log_err("fio: debug mask %s not found\n", opt);
1289	}
1290	return 0;
1291}
1292#else
1293static int set_debug(const char *string)
1294{
1295	log_err("fio: debug tracing not included in build\n");
1296	return 1;
1297}
1298#endif
1299
1300static void fio_options_fill_optstring(void)
1301{
1302	char *ostr = cmd_optstr;
1303	int i, c;
1304
1305	c = i = 0;
1306	while (l_opts[i].name) {
1307		ostr[c++] = l_opts[i].val;
1308		if (l_opts[i].has_arg == required_argument)
1309			ostr[c++] = ':';
1310		else if (l_opts[i].has_arg == optional_argument) {
1311			ostr[c++] = ':';
1312			ostr[c++] = ':';
1313		}
1314		i++;
1315	}
1316	ostr[c] = '\0';
1317}
1318
1319static int client_flag_set(char c)
1320{
1321	int i;
1322
1323	i = 0;
1324	while (l_opts[i].name) {
1325		int val = l_opts[i].val;
1326
1327		if (c == (val & 0xff))
1328			return (val & FIO_CLIENT_FLAG);
1329
1330		i++;
1331	}
1332
1333	return 0;
1334}
1335
1336void parse_cmd_client(void *client, char *opt)
1337{
1338	fio_client_add_cmd_option(client, opt);
1339}
1340
1341int parse_cmd_line(int argc, char *argv[])
1342{
1343	struct thread_data *td = NULL;
1344	int c, ini_idx = 0, lidx, ret = 0, do_exit = 0, exit_val = 0;
1345	char *ostr = cmd_optstr;
1346	void *pid_file = NULL;
1347	void *cur_client = NULL;
1348	int backend = 0;
1349
1350	/*
1351	 * Reset optind handling, since we may call this multiple times
1352	 * for the backend.
1353	 */
1354	optind = 1;
1355
1356	while ((c = getopt_long_only(argc, argv, ostr, l_opts, &lidx)) != -1) {
1357		did_arg = 1;
1358
1359		if ((c & FIO_CLIENT_FLAG) || client_flag_set(c)) {
1360			parse_cmd_client(cur_client, argv[optind - 1]);
1361			c &= ~FIO_CLIENT_FLAG;
1362		}
1363
1364		switch (c) {
1365		case 'a':
1366			smalloc_pool_size = atoi(optarg);
1367			break;
1368		case 't':
1369			def_timeout = atoi(optarg);
1370			break;
1371		case 'l':
1372			write_lat_log = 1;
1373			break;
1374		case 'b':
1375			write_bw_log = 1;
1376			break;
1377		case 'o':
1378			f_out = fopen(optarg, "w+");
1379			if (!f_out) {
1380				perror("fopen output");
1381				exit(1);
1382			}
1383			f_err = f_out;
1384			break;
1385		case 'm':
1386			terse_output = 1;
1387			break;
1388		case 'h':
1389			if (!cur_client) {
1390				usage(argv[0]);
1391				do_exit++;
1392			}
1393			break;
1394		case 'c':
1395			if (!cur_client) {
1396				fio_show_option_help(optarg);
1397				do_exit++;
1398			}
1399			break;
1400		case 'i':
1401			if (!cur_client) {
1402				fio_show_ioengine_help(optarg);
1403				do_exit++;
1404			}
1405			break;
1406		case 's':
1407			dump_cmdline = 1;
1408			break;
1409		case 'r':
1410			read_only = 1;
1411			break;
1412		case 'v':
1413			if (!cur_client) {
1414				log_info("fio %s\n", fio_version_string);
1415				do_exit++;
1416			}
1417			break;
1418		case 'V':
1419			terse_version = atoi(optarg);
1420			if (!(terse_version == 2 || terse_version == 3)) {
1421				log_err("fio: bad terse version format\n");
1422				exit_val = 1;
1423				do_exit++;
1424			}
1425			break;
1426		case 'e':
1427			if (!strcmp("always", optarg))
1428				eta_print = FIO_ETA_ALWAYS;
1429			else if (!strcmp("never", optarg))
1430				eta_print = FIO_ETA_NEVER;
1431			break;
1432		case 'd':
1433			if (set_debug(optarg))
1434				do_exit++;
1435			break;
1436		case 'x': {
1437			size_t new_size;
1438
1439			if (!strcmp(optarg, "global")) {
1440				log_err("fio: can't use global as only "
1441					"section\n");
1442				do_exit++;
1443				exit_val = 1;
1444				break;
1445			}
1446			new_size = (nr_job_sections + 1) * sizeof(char *);
1447			job_sections = realloc(job_sections, new_size);
1448			job_sections[nr_job_sections] = strdup(optarg);
1449			nr_job_sections++;
1450			break;
1451			}
1452		case 'p':
1453			exec_profile = strdup(optarg);
1454			break;
1455		case FIO_GETOPT_JOB: {
1456			const char *opt = l_opts[lidx].name;
1457			char *val = optarg;
1458
1459			if (!strncmp(opt, "name", 4) && td) {
1460				ret = add_job(td, td->o.name ?: "fio", 0);
1461				if (ret)
1462					return 0;
1463				td = NULL;
1464			}
1465			if (!td) {
1466				int is_section = !strncmp(opt, "name", 4);
1467				int global = 0;
1468
1469				if (!is_section || !strncmp(val, "global", 6))
1470					global = 1;
1471
1472				if (is_section && skip_this_section(val))
1473					continue;
1474
1475				td = get_new_job(global, &def_thread, 1);
1476				if (!td || ioengine_load(td))
1477					return 0;
1478				fio_options_set_ioengine_opts(l_opts, td);
1479			}
1480
1481			ret = fio_cmd_option_parse(td, opt, val);
1482
1483			if (!ret && !strcmp(opt, "ioengine")) {
1484				free_ioengine(td);
1485				if (ioengine_load(td))
1486					return 0;
1487				fio_options_set_ioengine_opts(l_opts, td);
1488			}
1489			break;
1490		}
1491		case FIO_GETOPT_IOENGINE: {
1492			const char *opt = l_opts[lidx].name;
1493			char *val = optarg;
1494			opt = l_opts[lidx].name;
1495			val = optarg;
1496			ret = fio_cmd_ioengine_option_parse(td, opt, val);
1497			break;
1498		}
1499		case 'w':
1500			warnings_fatal = 1;
1501			break;
1502		case 'j':
1503			max_jobs = atoi(optarg);
1504			if (!max_jobs || max_jobs > REAL_MAX_JOBS) {
1505				log_err("fio: invalid max jobs: %d\n", max_jobs);
1506				do_exit++;
1507				exit_val = 1;
1508			}
1509			break;
1510		case 'S':
1511			if (nr_clients) {
1512				log_err("fio: can't be both client and server\n");
1513				do_exit++;
1514				exit_val = 1;
1515				break;
1516			}
1517			if (optarg)
1518				fio_server_set_arg(optarg);
1519			is_backend = 1;
1520			backend = 1;
1521			break;
1522		case 'D':
1523			pid_file = strdup(optarg);
1524			break;
1525		case 'C':
1526			if (is_backend) {
1527				log_err("fio: can't be both client and server\n");
1528				do_exit++;
1529				exit_val = 1;
1530				break;
1531			}
1532			if (fio_client_add(optarg, &cur_client)) {
1533				log_err("fio: failed adding client %s\n", optarg);
1534				do_exit++;
1535				exit_val = 1;
1536				break;
1537			}
1538			break;
1539		default:
1540			do_exit++;
1541			exit_val = 1;
1542			break;
1543		}
1544		if (do_exit)
1545			break;
1546	}
1547
1548	if (do_exit) {
1549		if (exit_val && !(is_backend || nr_clients))
1550			exit(exit_val);
1551	}
1552
1553	if (nr_clients && fio_clients_connect()) {
1554		do_exit++;
1555		exit_val = 1;
1556		return -1;
1557	}
1558
1559	if (is_backend && backend)
1560		return fio_start_server(pid_file);
1561
1562	if (td) {
1563		if (!ret)
1564			ret = add_job(td, td->o.name ?: "fio", 0);
1565	}
1566
1567	while (!ret && optind < argc) {
1568		ini_idx++;
1569		ini_file = realloc(ini_file, ini_idx * sizeof(char *));
1570		ini_file[ini_idx - 1] = strdup(argv[optind]);
1571		optind++;
1572	}
1573
1574	return ini_idx;
1575}
1576
1577int parse_options(int argc, char *argv[])
1578{
1579	int job_files, i;
1580
1581	f_out = stdout;
1582	f_err = stderr;
1583
1584	fio_options_fill_optstring();
1585	fio_options_dup_and_init(l_opts);
1586
1587	atexit(free_shm);
1588
1589	if (fill_def_thread())
1590		return 1;
1591
1592	job_files = parse_cmd_line(argc, argv);
1593
1594	if (job_files > 0) {
1595		for (i = 0; i < job_files; i++) {
1596			if (fill_def_thread())
1597				return 1;
1598			if (nr_clients) {
1599				if (fio_clients_send_ini(ini_file[i]))
1600					return 1;
1601				free(ini_file[i]);
1602			} else if (!is_backend) {
1603				if (parse_jobs_ini(ini_file[i], 0, i))
1604					return 1;
1605				free(ini_file[i]);
1606			}
1607		}
1608	}
1609
1610	free(ini_file);
1611	fio_options_free(&def_thread);
1612
1613	if (!thread_number) {
1614		if (dump_cmdline)
1615			return 0;
1616		if (exec_profile)
1617			return 0;
1618		if (is_backend || nr_clients)
1619			return 0;
1620		if (did_arg)
1621			return 0;
1622
1623		log_err("No jobs(s) defined\n\n");
1624
1625		if (!did_arg) {
1626			usage(argv[0]);
1627			return 1;
1628		}
1629
1630		return 0;
1631	}
1632
1633	if (def_thread.o.gtod_offload) {
1634		fio_gtod_init();
1635		fio_gtod_offload = 1;
1636		fio_gtod_cpu = def_thread.o.gtod_cpu;
1637	}
1638
1639	if (!terse_output)
1640		log_info("fio %s\n", fio_version_string);
1641
1642	return 0;
1643}
1644