[fio.git] / options.c

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <ctype.h>
#include <string.h>
#include <getopt.h>
#include <assert.h>

#include "fio.h"
#include "parse.h"

#define td_var_offset(var)	((size_t) &((struct thread_options *)0)->var)

/*
 * Check if mmap/mmaphuge has a :/foo/bar/file at the end. If so, return that.
 */
static char *get_opt_postfix(const char *str)
{
	char *p = strstr(str, ":");

	if (!p)
		return NULL;

	p++;
	strip_blank_front(&p);
	strip_blank_end(p);
	return strdup(p);
}

static int str_rw_cb(void *data, const char *str)
{
	struct thread_data *td = data;
	char *nr = get_opt_postfix(str);

	td->o.ddir_nr = 0;
	if (nr)
		td->o.ddir_nr = atoi(nr);

	return 0;
}

static int str_mem_cb(void *data, const char *mem)
{
	struct thread_data *td = data;

	if (td->o.mem_type == MEM_MMAPHUGE || td->o.mem_type == MEM_MMAP) {
		td->mmapfile = get_opt_postfix(mem);
		if (td->o.mem_type == MEM_MMAPHUGE && !td->mmapfile) {
			log_err("fio: mmaphuge:/path/to/file\n");
			return 1;
		}
	}

	return 0;
}

static int str_lockmem_cb(void fio_unused *data, unsigned long *val)
{
	mlock_size = *val;
	return 0;
}

#ifdef FIO_HAVE_IOPRIO
static int str_prioclass_cb(void *data, unsigned int *val)
{
	struct thread_data *td = data;

	td->ioprio |= *val << IOPRIO_CLASS_SHIFT;
	return 0;
}

static int str_prio_cb(void *data, unsigned int *val)
{
	struct thread_data *td = data;

	td->ioprio |= *val;
	return 0;
}
#endif

static int str_exitall_cb(void)
{
	exitall_on_terminate = 1;
	return 0;
}

static void fill_cpu_mask(os_cpu_mask_t cpumask, int cpu)
{
#ifdef FIO_HAVE_CPU_AFFINITY
	unsigned int i;

	CPU_ZERO(&cpumask);

	for (i = 0; i < sizeof(int) * 8; i++) {
		if ((1 << i) & cpu)
			CPU_SET(i, &cpumask);
	}
#endif
}

static int str_cpumask_cb(void *data, unsigned int *val)
{
	struct thread_data *td = data;

	fill_cpu_mask(td->o.cpumask, *val);
	return 0;
}

static int str_fst_cb(void *data, const char *str)
{
	struct thread_data *td = data;
	char *nr = get_opt_postfix(str);

	td->file_service_nr = 1;
	if (nr)
		td->file_service_nr = atoi(nr);

	return 0;
}

static int str_filename_cb(void *data, const char *input)
{
	struct thread_data *td = data;
	char *fname, *str, *p;

	p = str = strdup(input);

	strip_blank_front(&str);
	strip_blank_end(str);

	if (!td->files_index)
		td->o.nr_files = 0;

	while ((fname = strsep(&str, ":")) != NULL) {
		if (!strlen(fname))
			break;
		add_file(td, fname);
		td->o.nr_files++;
	}

	free(p);
	return 0;
}

static int str_directory_cb(void *data, const char fio_unused *str)
{
	struct thread_data *td = data;
	struct stat sb;

	if (lstat(td->o.directory, &sb) < 0) {
		log_err("fio: %s is not a directory\n", td->o.directory);
		td_verror(td, errno, "lstat");
		return 1;
	}
	if (!S_ISDIR(sb.st_mode)) {
		log_err("fio: %s is not a directory\n", td->o.directory);
		return 1;
	}

	return 0;
}

static int str_opendir_cb(void *data, const char fio_unused *str)
{
	struct thread_data *td = data;

	if (!td->files_index)
		td->o.nr_files = 0;

	return add_dir_files(td, td->o.opendir);
}


#define __stringify_1(x)	#x
#define __stringify(x)		__stringify_1(x)

/*
 * Map of job/command line options
 */
static struct fio_option options[] = {
	{
		.name	= "description",
		.type	= FIO_OPT_STR_STORE,
		.off1	= td_var_offset(description),
		.help	= "Text job description",
	},
	{
		.name	= "name",
		.type	= FIO_OPT_STR_STORE,
		.off1	= td_var_offset(name),
		.help	= "Name of this job",
	},
	{
		.name	= "directory",
		.type	= FIO_OPT_STR_STORE,
		.off1	= td_var_offset(directory),
		.cb	= str_directory_cb,
		.help	= "Directory to store files in",
	},
	{
		.name	= "filename",
		.type	= FIO_OPT_STR_STORE,
		.off1	= td_var_offset(filename),
		.cb	= str_filename_cb,
		.help	= "File(s) to use for the workload",
	},
	{
		.name	= "opendir",
		.type	= FIO_OPT_STR_STORE,
		.off1	= td_var_offset(opendir),
		.cb	= str_opendir_cb,
		.help	= "Recursively add files from this directory and down",
	},
	{
		.name	= "rw",
		.alias	= "readwrite",
		.type	= FIO_OPT_STR,
		.cb	= str_rw_cb,
		.off1	= td_var_offset(td_ddir),
		.help	= "IO direction",
		.def	= "read",
		.posval = {
			  { .ival = "read",
			    .oval = TD_DDIR_READ,
			    .help = "Sequential read",
			  },
			  { .ival = "write",
			    .oval = TD_DDIR_WRITE,
			    .help = "Sequential write",
			  },
			  { .ival = "randread",
			    .oval = TD_DDIR_RANDREAD,
			    .help = "Random read",
			  },
			  { .ival = "randwrite",
			    .oval = TD_DDIR_RANDWRITE,
			    .help = "Random write",
			  },
			  { .ival = "rw",
			    .oval = TD_DDIR_RW,
			    .help = "Sequential read and write mix",
			  },
			  { .ival = "randrw",
			    .oval = TD_DDIR_RANDRW,
			    .help = "Random read and write mix"
			  },
		},
	},
	{
		.name	= "ioengine",
		.type	= FIO_OPT_STR_STORE,
		.off1	= td_var_offset(ioengine),
		.help	= "IO engine to use",
		.def	= "sync",
		.posval	= {
			  { .ival = "sync",
			    .help = "Use read/write",
			  },
#ifdef FIO_HAVE_LIBAIO
			  { .ival = "libaio",
			    .help = "Linux native asynchronous IO",
			  },
#endif
#ifdef FIO_HAVE_POSIXAIO
			  { .ival = "posixaio",
			    .help = "POSIX asynchronous IO",
			  },
#endif
			  { .ival = "mmap",
			    .help = "Memory mapped IO",
			  },
#ifdef FIO_HAVE_SPLICE
			  { .ival = "splice",
			    .help = "splice/vmsplice based IO",
			  },
#endif
#ifdef FIO_HAVE_SGIO
			  { .ival = "sg",
			    .help = "SCSI generic v3 IO",
			  },
#endif
			  { .ival = "null",
			    .help = "Testing engine (no data transfer)",
			  },
			  { .ival = "net",
			    .help = "Network IO",
			  },
#ifdef FIO_HAVE_SYSLET
			  { .ival = "syslet-rw",
			    .help = "syslet enabled async pread/pwrite IO",
			  },
#endif
			  { .ival = "cpuio",
			    .help = "CPU cycler burner engine",
			  },
#ifdef FIO_HAVE_GUASI
			  { .ival = "guasi",
			    .help = "GUASI IO engine",
			  },
#endif
			  { .ival = "external",
			    .help = "Load external engine (append name)",
			  },
		},
	},
	{
		.name	= "iodepth",
		.type	= FIO_OPT_INT,
		.off1	= td_var_offset(iodepth),
		.help	= "Amount of IO buffers to keep in flight",
		.def	= "1",
	},
	{
		.name	= "iodepth_batch",
		.type	= FIO_OPT_INT,
		.off1	= td_var_offset(iodepth_batch),
		.help	= "Number of IO to submit in one go",
	},
	{
		.name	= "iodepth_low",
		.type	= FIO_OPT_INT,
		.off1	= td_var_offset(iodepth_low),
		.help	= "Low water mark for queuing depth",
	},
	{
		.name	= "size",
		.type	= FIO_OPT_STR_VAL,
		.off1	= td_var_offset(size),
		.help	= "Total size of device or files",
	},
	{
		.name	= "filesize",
		.type	= FIO_OPT_STR_VAL,
		.off1	= td_var_offset(file_size_low),
		.off2	= td_var_offset(file_size_high),
		.help	= "Size of individual files",
	},
	{
		.name	= "bs",
		.alias	= "blocksize",
		.type	= FIO_OPT_STR_VAL_INT,
		.off1	= td_var_offset(bs[DDIR_READ]),
		.off2	= td_var_offset(bs[DDIR_WRITE]),
		.help	= "Block size unit",
		.def	= "4k",
	},
	{
		.name	= "bsrange",
		.alias	= "blocksize_range",
		.type	= FIO_OPT_RANGE,
		.off1	= td_var_offset(min_bs[DDIR_READ]),
		.off2	= td_var_offset(max_bs[DDIR_READ]),
		.off3	= td_var_offset(min_bs[DDIR_WRITE]),
		.off4	= td_var_offset(max_bs[DDIR_WRITE]),
		.help	= "Set block size range (in more detail than bs)",
	},
	{
		.name	= "bs_unaligned",
		.alias	= "blocksize_unaligned",
		.type	= FIO_OPT_STR_SET,
		.off1	= td_var_offset(bs_unaligned),
		.help	= "Don't sector align IO buffer sizes",
	},
	{
		.name	= "offset",
		.type	= FIO_OPT_STR_VAL,
		.off1	= td_var_offset(start_offset),
		.help	= "Start IO from this offset",
		.def	= "0",
	},
	{
		.name	= "randrepeat",
		.type	= FIO_OPT_BOOL,
		.off1	= td_var_offset(rand_repeatable),
		.help	= "Use repeatable random IO pattern",
		.def	= "1",
	},
	{
		.name	= "norandommap",
		.type	= FIO_OPT_STR_SET,
		.off1	= td_var_offset(norandommap),
		.help	= "Accept potential duplicate random blocks",
	},
	{
		.name	= "nrfiles",
		.type	= FIO_OPT_INT,
		.off1	= td_var_offset(nr_files),
		.help	= "Split job workload between this number of files",
		.def	= "1",
	},
	{
		.name	= "openfiles",
		.type	= FIO_OPT_INT,
		.off1	= td_var_offset(open_files),
		.help	= "Number of files to keep open at the same time",
	},
	{
		.name	= "file_service_type",
		.type	= FIO_OPT_STR,
		.cb	= str_fst_cb,
		.off1	= td_var_offset(file_service_type),
		.help	= "How to select which file to service next",
		.def	= "roundrobin",
		.posval	= {
			  { .ival = "random",
			    .oval = FIO_FSERVICE_RANDOM,
			    .help = "Choose a file at random",
			  },
			  { .ival = "roundrobin",
			    .oval = FIO_FSERVICE_RR,
			    .help = "Round robin select files",
			  },
		},
	},
	{
		.name	= "fsync",
		.type	= FIO_OPT_INT,
		.off1	= td_var_offset(fsync_blocks),
		.help	= "Issue fsync for writes every given number of blocks",
		.def	= "0",
	},
	{
		.name	= "direct",
		.type	= FIO_OPT_BOOL,
		.off1	= td_var_offset(odirect),
		.help	= "Use O_DIRECT IO (negates buffered)",
		.def	= "0",
	},
	{
		.name	= "buffered",
		.type	= FIO_OPT_BOOL,
		.off1	= td_var_offset(odirect),
		.neg	= 1,
		.help	= "Use buffered IO (negates direct)",
		.def	= "1",
	},
	{
		.name	= "overwrite",
		.type	= FIO_OPT_BOOL,
		.off1	= td_var_offset(overwrite),
		.help	= "When writing, set whether to overwrite current data",
		.def	= "0",
	},
	{
		.name	= "loops",
		.type	= FIO_OPT_INT,
		.off1	= td_var_offset(loops),
		.help	= "Number of times to run the job",
		.def	= "1",
	},
	{
		.name	= "numjobs",
		.type	= FIO_OPT_INT,
		.off1	= td_var_offset(numjobs),
		.help	= "Duplicate this job this many times",
		.def	= "1",
	},
	{
		.name	= "startdelay",
		.type	= FIO_OPT_INT,
		.off1	= td_var_offset(start_delay),
		.help	= "Only start job when this period has passed",
		.def	= "0",
	},
	{
		.name	= "runtime",
		.alias	= "timeout",
		.type	= FIO_OPT_STR_VAL_TIME,
		.off1	= td_var_offset(timeout),
		.help	= "Stop workload when this amount of time has passed",
		.def	= "0",
	},
	{
		.name	= "mem",
		.alias	= "iomem",
		.type	= FIO_OPT_STR,
		.cb	= str_mem_cb,
		.off1	= td_var_offset(mem_type),
		.help	= "Backing type for IO buffers",
		.def	= "malloc",
		.posval	= {
			  { .ival = "malloc",
			    .oval = MEM_MALLOC,
			    .help = "Use malloc(3) for IO buffers",
			  },
			  { .ival = "shm",
			    .oval = MEM_SHM,
			    .help = "Use shared memory segments for IO buffers",
			  },
#ifdef FIO_HAVE_HUGETLB
			  { .ival = "shmhuge",
			    .oval = MEM_SHMHUGE,
			    .help = "Like shm, but use huge pages",
			  },
#endif
			  { .ival = "mmap",
			    .oval = MEM_MMAP,
			    .help = "Use mmap(2) (file or anon) for IO buffers",
			  },
#ifdef FIO_HAVE_HUGETLB
			  { .ival = "mmaphuge",
			    .oval = MEM_MMAPHUGE,
			    .help = "Like mmap, but use huge pages",
			  },
#endif
		  },
	},
	{
		.name	= "verify",
		.type	= FIO_OPT_STR,
		.off1	= td_var_offset(verify),
		.help	= "Verify data written",
		.def	= "0",
		.posval = {
			  { .ival = "0",
			    .oval = VERIFY_NONE,
			    .help = "Don't do IO verification",
			  },
			  { .ival = "crc32",
			    .oval = VERIFY_CRC32,
			    .help = "Use crc32 checksums for verification",
			  },
			  { .ival = "md5",
			    .oval = VERIFY_MD5,
			    .help = "Use md5 checksums for verification",
			  },
		},
	},
	{
		.name	= "write_iolog",
		.type	= FIO_OPT_STR_STORE,
		.off1	= td_var_offset(write_iolog_file),
		.help	= "Store IO pattern to file",
	},
	{
		.name	= "read_iolog",
		.type	= FIO_OPT_STR_STORE,
		.off1	= td_var_offset(read_iolog_file),
		.help	= "Playback IO pattern from file",
	},
	{
		.name	= "exec_prerun",
		.type	= FIO_OPT_STR_STORE,
		.off1	= td_var_offset(exec_prerun),
		.help	= "Execute this file prior to running job",
	},
	{
		.name	= "exec_postrun",
		.type	= FIO_OPT_STR_STORE,
		.off1	= td_var_offset(exec_postrun),
		.help	= "Execute this file after running job",
	},
#ifdef FIO_HAVE_IOSCHED_SWITCH
	{
		.name	= "ioscheduler",
		.type	= FIO_OPT_STR_STORE,
		.off1	= td_var_offset(ioscheduler),
		.help	= "Use this IO scheduler on the backing device",
	},
#endif
	{
		.name	= "zonesize",
		.type	= FIO_OPT_STR_VAL,
		.off1	= td_var_offset(zone_size),
		.help	= "Give size of an IO zone",
		.def	= "0",
	},
	{
		.name	= "zoneskip",
		.type	= FIO_OPT_STR_VAL,
		.off1	= td_var_offset(zone_skip),
		.help	= "Space between IO zones",
		.def	= "0",
	},
	{
		.name	= "lockmem",
		.type	= FIO_OPT_STR_VAL,
		.cb	= str_lockmem_cb,
		.help	= "Lock down this amount of memory",
		.def	= "0",
	},
	{
		.name	= "rwmixcycle",
		.type	= FIO_OPT_INT,
		.off1	= td_var_offset(rwmixcycle),
		.help	= "Cycle period for mixed read/write workloads (msec)",
		.def	= "500",
	},
	{
		.name	= "rwmixread",
		.type	= FIO_OPT_INT,
		.off1	= td_var_offset(rwmix[DDIR_READ]),
		.maxval	= 100,
		.help	= "Percentage of mixed workload that is reads",
		.def	= "50",
	},
	{
		.name	= "rwmixwrite",
		.type	= FIO_OPT_INT,
		.off1	= td_var_offset(rwmix[DDIR_WRITE]),
		.maxval	= 100,
		.help	= "Percentage of mixed workload that is writes",
		.def	= "50",
	},
	{
		.name	= "nice",
		.type	= FIO_OPT_INT,
		.off1	= td_var_offset(nice),
		.help	= "Set job CPU nice value",
		.minval	= -19,
		.maxval	= 20,
		.def	= "0",
	},
#ifdef FIO_HAVE_IOPRIO
	{
		.name	= "prio",
		.type	= FIO_OPT_INT,
		.cb	= str_prio_cb,
		.help	= "Set job IO priority value",
		.minval	= 0,
		.maxval	= 7,
	},
	{
		.name	= "prioclass",
		.type	= FIO_OPT_INT,
		.cb	= str_prioclass_cb,
		.help	= "Set job IO priority class",
		.minval	= 0,
		.maxval	= 3,
	},
#endif
	{
		.name	= "thinktime",
		.type	= FIO_OPT_INT,
		.off1	= td_var_offset(thinktime),
		.help	= "Idle time between IO buffers (usec)",
		.def	= "0",
	},
	{
		.name	= "thinktime_spin",
		.type	= FIO_OPT_INT,
		.off1	= td_var_offset(thinktime_spin),
		.help	= "Start think time by spinning this amount (usec)",
		.def	= "0",
	},
	{
		.name	= "thinktime_blocks",
		.type	= FIO_OPT_INT,
		.off1	= td_var_offset(thinktime_blocks),
		.help	= "IO buffer period between 'thinktime'",
		.def	= "1",
	},
	{
		.name	= "rate",
		.type	= FIO_OPT_INT,
		.off1	= td_var_offset(rate),
		.help	= "Set bandwidth rate",
	},
	{
		.name	= "ratemin",
		.type	= FIO_OPT_INT,
		.off1	= td_var_offset(ratemin),
		.help	= "Job must meet this rate or it will be shutdown",
	},
	{
		.name	= "rate_iops",
		.type	= FIO_OPT_INT,
		.off1	= td_var_offset(rate_iops),
		.help	= "Limit IO used to this number of IO operations/sec",
	},
	{
		.name	= "rate_iops_min",
		.type	= FIO_OPT_INT,
		.off1	= td_var_offset(rate_iops_min),
		.help	= "Job must meet this rate or it will be shutdown",
	},
	{
		.name	= "ratecycle",
		.type	= FIO_OPT_INT,
		.off1	= td_var_offset(ratecycle),
		.help	= "Window average for rate limits (msec)",
		.def	= "1000",
	},
	{
		.name	= "invalidate",
		.type	= FIO_OPT_BOOL,
		.off1	= td_var_offset(invalidate_cache),
		.help	= "Invalidate buffer/page cache prior to running job",
		.def	= "1",
	},
	{
		.name	= "sync",
		.type	= FIO_OPT_BOOL,
		.off1	= td_var_offset(sync_io),
		.help	= "Use O_SYNC for buffered writes",
		.def	= "0",
	},
	{
		.name	= "bwavgtime",
		.type	= FIO_OPT_INT,
		.off1	= td_var_offset(bw_avg_time),
		.help	= "Time window over which to calculate bandwidth (msec)",
		.def	= "500",
	},
	{
		.name	= "create_serialize",
		.type	= FIO_OPT_BOOL,
		.off1	= td_var_offset(create_serialize),
		.help	= "Serialize creating of job files",
		.def	= "1",
	},
	{
		.name	= "create_fsync",
		.type	= FIO_OPT_BOOL,
		.off1	= td_var_offset(create_fsync),
		.help	= "Fsync file after creation",
		.def	= "1",
	},
	{
		.name	= "cpuload",
		.type	= FIO_OPT_INT,
		.off1	= td_var_offset(cpuload),
		.help	= "Use this percentage of CPU",
	},
	{
		.name	= "cpuchunks",
		.type	= FIO_OPT_INT,
		.off1	= td_var_offset(cpucycle),
		.help	= "Length of the CPU burn cycles (usecs)",
		.def	= "50000",
	},
#ifdef FIO_HAVE_CPU_AFFINITY
	{
		.name	= "cpumask",
		.type	= FIO_OPT_INT,
		.cb	= str_cpumask_cb,
		.help	= "CPU affinity mask",
	},
#endif
	{
		.name	= "end_fsync",
		.type	= FIO_OPT_BOOL,
		.off1	= td_var_offset(end_fsync),
		.help	= "Include fsync at the end of job",
		.def	= "0",
	},
	{
		.name	= "fsync_on_close",
		.type	= FIO_OPT_BOOL,
		.off1	= td_var_offset(fsync_on_close),
		.help	= "fsync files on close",
		.def	= "0",
	},
	{
		.name	= "unlink",
		.type	= FIO_OPT_BOOL,
		.off1	= td_var_offset(unlink),
		.help	= "Unlink created files after job has completed",
		.def	= "0",
	},
	{
		.name	= "exitall",
		.type	= FIO_OPT_STR_SET,
		.cb	= str_exitall_cb,
		.help	= "Terminate all jobs when one exits",
	},
	{
		.name	= "stonewall",
		.type	= FIO_OPT_STR_SET,
		.off1	= td_var_offset(stonewall),
		.help	= "Insert a hard barrier between this job and previous",
	},
	{
		.name	= "new_group",
		.type	= FIO_OPT_STR_SET,
		.off1	= td_var_offset(new_group),
		.help	= "Mark the start of a new group (for reporting)",
	},
	{
		.name	= "thread",
		.type	= FIO_OPT_STR_SET,
		.off1	= td_var_offset(use_thread),
		.help	= "Use threads instead of forks",
	},
	{
		.name	= "write_bw_log",
		.type	= FIO_OPT_STR_SET,
		.off1	= td_var_offset(write_bw_log),
		.help	= "Write log of bandwidth during run",
	},
	{
		.name	= "write_lat_log",
		.type	= FIO_OPT_STR_SET,
		.off1	= td_var_offset(write_lat_log),
		.help	= "Write log of latency during run",
	},
	{
		.name	= "hugepage-size",
		.type	= FIO_OPT_STR_VAL,
		.off1	= td_var_offset(hugepage_size),
		.help	= "When using hugepages, specify size of each page",
		.def	= __stringify(FIO_HUGE_PAGE),
	},
	{
		.name	= "group_reporting",
		.type	= FIO_OPT_STR_SET,
		.off1	= td_var_offset(group_reporting),
		.help	= "Do reporting on a per-group basis",
	},
	{
		.name = NULL,
	},
};

void fio_options_dup_and_init(struct option *long_options)
{
	struct fio_option *o;
	unsigned int i;

	options_init(options);

	i = 0;
	while (long_options[i].name)
		i++;

	o = &options[0];
	while (o->name) {
		long_options[i].name = o->name;
		long_options[i].val = FIO_GETOPT_JOB;
		if (o->type == FIO_OPT_STR_SET)
			long_options[i].has_arg = no_argument;
		else
			long_options[i].has_arg = required_argument;

		i++;
		o++;
		assert(i < FIO_NR_OPTIONS);
	}
}

int fio_option_parse(struct thread_data *td, const char *opt)
{
	return parse_option(opt, options, td);
}

int fio_cmd_option_parse(struct thread_data *td, const char *opt, char *val)
{
	return parse_cmd_option(opt, val, options, td);
}

void fio_fill_default_options(struct thread_data *td)
{
	fill_default_options(td, options);
}

int fio_show_option_help(const char *opt)
{
	return show_cmd_help(options, opt);
}
Commit	Line	Data
214e1eca JA	1	#include <stdio.h>
	2	#include <stdlib.h>
	3	#include <unistd.h>
	4	#include <ctype.h>
	5	#include <string.h>
	6	#include <getopt.h>
	7	#include <assert.h>
	8
	9	#include "fio.h"
	10	#include "parse.h"
	11
2dc1bbeb	12	#define td_var_offset(var) ((size_t) &((struct thread_options *)0)->var)
214e1eca JA	13
	14	/*
	15	* Check if mmap/mmaphuge has a :/foo/bar/file at the end. If so, return that.
	16	*/
	17	static char get_opt_postfix(const char str)
	18	{
	19	char *p = strstr(str, ":");
	20
	21	if (!p)
	22	return NULL;
	23
	24	p++;
	25	strip_blank_front(&p);
	26	strip_blank_end(p);
	27	return strdup(p);
	28	}
	29
211097b2 JA	30	static int str_rw_cb(void data, const char str)
	31	{
	32	struct thread_data *td = data;
	33	char *nr = get_opt_postfix(str);
	34
	35	td->o.ddir_nr = 0;
	36	if (nr)
	37	td->o.ddir_nr = atoi(nr);
	38
211097b2 JA	39	return 0;
	40	}
	41
214e1eca JA	42	static int str_mem_cb(void data, const char mem)
	43	{
	44	struct thread_data *td = data;
	45
2dc1bbeb	46	if (td->o.mem_type == MEM_MMAPHUGE \|\| td->o.mem_type == MEM_MMAP) {
214e1eca	47	td->mmapfile = get_opt_postfix(mem);
2dc1bbeb	48	if (td->o.mem_type == MEM_MMAPHUGE && !td->mmapfile) {
214e1eca JA	49	log_err("fio: mmaphuge:/path/to/file\n");
	50	return 1;
	51	}
	52	}
	53
	54	return 0;
	55	}
	56
	57	static int str_lockmem_cb(void fio_unused data, unsigned long val)
	58	{
	59	mlock_size = *val;
	60	return 0;
	61	}
	62
	63	#ifdef FIO_HAVE_IOPRIO
	64	static int str_prioclass_cb(void data, unsigned int val)
	65	{
	66	struct thread_data *td = data;
	67
	68	td->ioprio \|= *val << IOPRIO_CLASS_SHIFT;
	69	return 0;
	70	}
	71
	72	static int str_prio_cb(void data, unsigned int val)
	73	{
	74	struct thread_data *td = data;
	75
	76	td->ioprio \|= *val;
	77	return 0;
	78	}
	79	#endif
	80
	81	static int str_exitall_cb(void)
	82	{
	83	exitall_on_terminate = 1;
	84	return 0;
	85	}
	86
	87	static void fill_cpu_mask(os_cpu_mask_t cpumask, int cpu)
	88	{
	89	#ifdef FIO_HAVE_CPU_AFFINITY
	90	unsigned int i;
	91
	92	CPU_ZERO(&cpumask);
	93
	94	for (i = 0; i < sizeof(int) * 8; i++) {
	95	if ((1 << i) & cpu)
	96	CPU_SET(i, &cpumask);
	97	}
	98	#endif
	99	}
	100
	101	static int str_cpumask_cb(void data, unsigned int val)
	102	{
	103	struct thread_data *td = data;
	104
2dc1bbeb	105	fill_cpu_mask(td->o.cpumask, *val);
214e1eca JA	106	return 0;
	107	}
	108
	109	static int str_fst_cb(void data, const char str)
	110	{
	111	struct thread_data *td = data;
	112	char *nr = get_opt_postfix(str);
	113
	114	td->file_service_nr = 1;
	115	if (nr)
	116	td->file_service_nr = atoi(nr);
	117
	118	return 0;
	119	}
	120
	121	static int str_filename_cb(void data, const char input)
	122	{
	123	struct thread_data *td = data;
	124	char fname, str, *p;
	125
	126	p = str = strdup(input);
	127
	128	strip_blank_front(&str);
	129	strip_blank_end(str);
	130
	131	if (!td->files_index)
2dc1bbeb	132	td->o.nr_files = 0;
214e1eca JA	133
	134	while ((fname = strsep(&str, ":")) != NULL) {
	135	if (!strlen(fname))
	136	break;
	137	add_file(td, fname);
2dc1bbeb	138	td->o.nr_files++;
214e1eca JA	139	}
	140
	141	free(p);
	142	return 0;
	143	}
	144
	145	static int str_directory_cb(void data, const char fio_unused str)
	146	{
	147	struct thread_data *td = data;
	148	struct stat sb;
	149
2dc1bbeb JA	150	if (lstat(td->o.directory, &sb) < 0) {
2dc1bbeb JA	151	log_err("fio: %s is not a directory\n", td->o.directory);
214e1eca JA	152	td_verror(td, errno, "lstat");
	153	return 1;
	154	}
	155	if (!S_ISDIR(sb.st_mode)) {
2dc1bbeb	156	log_err("fio: %s is not a directory\n", td->o.directory);
214e1eca JA	157	return 1;
	158	}
	159
	160	return 0;
	161	}
	162
	163	static int str_opendir_cb(void data, const char fio_unused str)
	164	{
	165	struct thread_data *td = data;
	166
	167	if (!td->files_index)
2dc1bbeb	168	td->o.nr_files = 0;
214e1eca	169
2dc1bbeb	170	return add_dir_files(td, td->o.opendir);
214e1eca JA	171	}
	172
	173
	174	#define __stringify_1(x) #x
	175	#define __stringify(x) __stringify_1(x)
	176
	177	/*
	178	* Map of job/command line options
	179	*/
	180	static struct fio_option options[] = {
	181	{
	182	.name = "description",
	183	.type = FIO_OPT_STR_STORE,
	184	.off1 = td_var_offset(description),
	185	.help = "Text job description",
	186	},
	187	{
	188	.name = "name",
	189	.type = FIO_OPT_STR_STORE,
	190	.off1 = td_var_offset(name),
	191	.help = "Name of this job",
	192	},
	193	{
	194	.name = "directory",
	195	.type = FIO_OPT_STR_STORE,
	196	.off1 = td_var_offset(directory),
	197	.cb = str_directory_cb,
	198	.help = "Directory to store files in",
	199	},
	200	{
	201	.name = "filename",
	202	.type = FIO_OPT_STR_STORE,
	203	.off1 = td_var_offset(filename),
	204	.cb = str_filename_cb,
	205	.help = "File(s) to use for the workload",
	206	},
	207	{
	208	.name = "opendir",
	209	.type = FIO_OPT_STR_STORE,
	210	.off1 = td_var_offset(opendir),
	211	.cb = str_opendir_cb,
	212	.help = "Recursively add files from this directory and down",
	213	},
	214	{
	215	.name = "rw",
d3aad8f2	216	.alias = "readwrite",
214e1eca	217	.type = FIO_OPT_STR,
211097b2	218	.cb = str_rw_cb,
214e1eca JA	219	.off1 = td_var_offset(td_ddir),
	220	.help = "IO direction",
	221	.def = "read",
	222	.posval = {
	223	{ .ival = "read",
	224	.oval = TD_DDIR_READ,
	225	.help = "Sequential read",
	226	},
	227	{ .ival = "write",
	228	.oval = TD_DDIR_WRITE,
	229	.help = "Sequential write",
	230	},
	231	{ .ival = "randread",
	232	.oval = TD_DDIR_RANDREAD,
	233	.help = "Random read",
	234	},
	235	{ .ival = "randwrite",
	236	.oval = TD_DDIR_RANDWRITE,
	237	.help = "Random write",
	238	},
	239	{ .ival = "rw",
	240	.oval = TD_DDIR_RW,
	241	.help = "Sequential read and write mix",
	242	},
	243	{ .ival = "randrw",
	244	.oval = TD_DDIR_RANDRW,
	245	.help = "Random read and write mix"
	246	},
	247	},
	248	},
	249	{
	250	.name = "ioengine",
	251	.type = FIO_OPT_STR_STORE,
	252	.off1 = td_var_offset(ioengine),
	253	.help = "IO engine to use",
	254	.def = "sync",
	255	.posval = {
	256	{ .ival = "sync",
	257	.help = "Use read/write",
	258	},
	259	#ifdef FIO_HAVE_LIBAIO
	260	{ .ival = "libaio",
	261	.help = "Linux native asynchronous IO",
	262	},
	263	#endif
	264	#ifdef FIO_HAVE_POSIXAIO
	265	{ .ival = "posixaio",
	266	.help = "POSIX asynchronous IO",
	267	},
	268	#endif
	269	{ .ival = "mmap",
	270	.help = "Memory mapped IO",
	271	},
	272	#ifdef FIO_HAVE_SPLICE
	273	{ .ival = "splice",
	274	.help = "splice/vmsplice based IO",
	275	},
	276	#endif
	277	#ifdef FIO_HAVE_SGIO
	278	{ .ival = "sg",
	279	.help = "SCSI generic v3 IO",
	280	},
	281	#endif
	282	{ .ival = "null",
283	.help = "Testing engine (no data transfer)",
284	},
285	{ .ival = "net",
286	.help = "Network IO",
287	},
288	#ifdef FIO_HAVE_SYSLET
289	{ .ival = "syslet-rw",
290	.help = "syslet enabled async pread/pwrite IO",
291	},
292	#endif
293	{ .ival = "cpuio",
294	.help = "CPU cycler burner engine",
295	},
b8c82a46 JA	296	#ifdef FIO_HAVE_GUASI
	297	{ .ival = "guasi",
	298	.help = "GUASI IO engine",
	299	},
	300	#endif
214e1eca JA	301	{ .ival = "external",
	302	.help = "Load external engine (append name)",
	303	},
	304	},
	305	},
	306	{
	307	.name = "iodepth",
	308	.type = FIO_OPT_INT,
	309	.off1 = td_var_offset(iodepth),
	310	.help = "Amount of IO buffers to keep in flight",
	311	.def = "1",
	312	},
	313	{
	314	.name = "iodepth_batch",
	315	.type = FIO_OPT_INT,
	316	.off1 = td_var_offset(iodepth_batch),
	317	.help = "Number of IO to submit in one go",
	318	},
	319	{
	320	.name = "iodepth_low",
	321	.type = FIO_OPT_INT,
	322	.off1 = td_var_offset(iodepth_low),
	323	.help = "Low water mark for queuing depth",
	324	},
	325	{
	326	.name = "size",
	327	.type = FIO_OPT_STR_VAL,
2dc1bbeb	328	.off1 = td_var_offset(size),
214e1eca JA	329	.help = "Total size of device or files",
	330	},
	331	{
	332	.name = "filesize",
	333	.type = FIO_OPT_STR_VAL,
	334	.off1 = td_var_offset(file_size_low),
	335	.off2 = td_var_offset(file_size_high),
	336	.help = "Size of individual files",
	337	},
	338	{
	339	.name = "bs",
d3aad8f2	340	.alias = "blocksize",
214e1eca JA	341	.type = FIO_OPT_STR_VAL_INT,
	342	.off1 = td_var_offset(bs[DDIR_READ]),
	343	.off2 = td_var_offset(bs[DDIR_WRITE]),
	344	.help = "Block size unit",
	345	.def = "4k",
	346	},
	347	{
	348	.name = "bsrange",
d3aad8f2	349	.alias = "blocksize_range",
214e1eca JA	350	.type = FIO_OPT_RANGE,
	351	.off1 = td_var_offset(min_bs[DDIR_READ]),
	352	.off2 = td_var_offset(max_bs[DDIR_READ]),
	353	.off3 = td_var_offset(min_bs[DDIR_WRITE]),
	354	.off4 = td_var_offset(max_bs[DDIR_WRITE]),
	355	.help = "Set block size range (in more detail than bs)",
	356	},
	357	{
	358	.name = "bs_unaligned",
d3aad8f2	359	.alias = "blocksize_unaligned",
214e1eca JA	360	.type = FIO_OPT_STR_SET,
	361	.off1 = td_var_offset(bs_unaligned),
	362	.help = "Don't sector align IO buffer sizes",
	363	},
	364	{
	365	.name = "offset",
	366	.type = FIO_OPT_STR_VAL,
	367	.off1 = td_var_offset(start_offset),
	368	.help = "Start IO from this offset",
	369	.def = "0",
	370	},
	371	{
	372	.name = "randrepeat",
	373	.type = FIO_OPT_BOOL,
	374	.off1 = td_var_offset(rand_repeatable),
	375	.help = "Use repeatable random IO pattern",
	376	.def = "1",
	377	},
	378	{
	379	.name = "norandommap",
	380	.type = FIO_OPT_STR_SET,
	381	.off1 = td_var_offset(norandommap),
	382	.help = "Accept potential duplicate random blocks",
	383	},
	384	{
	385	.name = "nrfiles",
	386	.type = FIO_OPT_INT,
	387	.off1 = td_var_offset(nr_files),
	388	.help = "Split job workload between this number of files",
	389	.def = "1",
	390	},
	391	{
	392	.name = "openfiles",
	393	.type = FIO_OPT_INT,
	394	.off1 = td_var_offset(open_files),
	395	.help = "Number of files to keep open at the same time",
	396	},
	397	{
	398	.name = "file_service_type",
	399	.type = FIO_OPT_STR,
	400	.cb = str_fst_cb,
	401	.off1 = td_var_offset(file_service_type),
	402	.help = "How to select which file to service next",
	403	.def = "roundrobin",
	404	.posval = {
	405	{ .ival = "random",
	406	.oval = FIO_FSERVICE_RANDOM,
	407	.help = "Choose a file at random",
	408	},
	409	{ .ival = "roundrobin",
	410	.oval = FIO_FSERVICE_RR,
	411	.help = "Round robin select files",
	412	},
	413	},
	414	},
	415	{
	416	.name = "fsync",
	417	.type = FIO_OPT_INT,
	418	.off1 = td_var_offset(fsync_blocks),
	419	.help = "Issue fsync for writes every given number of blocks",
	420	.def = "0",
	421	},
	422	{
	423	.name = "direct",
424	.type = FIO_OPT_BOOL,
425	.off1 = td_var_offset(odirect),
426	.help = "Use O_DIRECT IO (negates buffered)",
427	.def = "0",
428	},
429	{
430	.name = "buffered",
431	.type = FIO_OPT_BOOL,
432	.off1 = td_var_offset(odirect),
433	.neg = 1,
434	.help = "Use buffered IO (negates direct)",
435	.def = "1",
436	},
437	{
438	.name = "overwrite",
439	.type = FIO_OPT_BOOL,
440	.off1 = td_var_offset(overwrite),
441	.help = "When writing, set whether to overwrite current data",
442	.def = "0",
443	},
444	{
445	.name = "loops",
446	.type = FIO_OPT_INT,
447	.off1 = td_var_offset(loops),
448	.help = "Number of times to run the job",
449	.def = "1",
450	},
451	{
452	.name = "numjobs",
453	.type = FIO_OPT_INT,
454	.off1 = td_var_offset(numjobs),
455	.help = "Duplicate this job this many times",
456	.def = "1",
457	},
458	{
459	.name = "startdelay",
460	.type = FIO_OPT_INT,
461	.off1 = td_var_offset(start_delay),
462	.help = "Only start job when this period has passed",
463	.def = "0",
464	},
465	{
466	.name = "runtime",
467	.alias = "timeout",
468	.type = FIO_OPT_STR_VAL_TIME,
469	.off1 = td_var_offset(timeout),
470	.help = "Stop workload when this amount of time has passed",
471	.def = "0",
472	},
473	{
474	.name = "mem",
d3aad8f2	475	.alias = "iomem",
214e1eca JA	476	.type = FIO_OPT_STR,
	477	.cb = str_mem_cb,
	478	.off1 = td_var_offset(mem_type),
	479	.help = "Backing type for IO buffers",
	480	.def = "malloc",
	481	.posval = {
	482	{ .ival = "malloc",
	483	.oval = MEM_MALLOC,
	484	.help = "Use malloc(3) for IO buffers",
	485	},
37c8cdfe JA	486	{ .ival = "shm",
	487	.oval = MEM_SHM,
	488	.help = "Use shared memory segments for IO buffers",
	489	},
214e1eca JA	490	#ifdef FIO_HAVE_HUGETLB
	491	{ .ival = "shmhuge",
	492	.oval = MEM_SHMHUGE,
	493	.help = "Like shm, but use huge pages",
	494	},
b370e46a	495	#endif
37c8cdfe JA	496	{ .ival = "mmap",
	497	.oval = MEM_MMAP,
	498	.help = "Use mmap(2) (file or anon) for IO buffers",
	499	},
214e1eca JA	500	#ifdef FIO_HAVE_HUGETLB
	501	{ .ival = "mmaphuge",
	502	.oval = MEM_MMAPHUGE,
	503	.help = "Like mmap, but use huge pages",
	504	},
	505	#endif
	506	},
	507	},
	508	{
	509	.name = "verify",
	510	.type = FIO_OPT_STR,
	511	.off1 = td_var_offset(verify),
	512	.help = "Verify data written",
	513	.def = "0",
	514	.posval = {
	515	{ .ival = "0",
	516	.oval = VERIFY_NONE,
	517	.help = "Don't do IO verification",
	518	},
	519	{ .ival = "crc32",
	520	.oval = VERIFY_CRC32,
	521	.help = "Use crc32 checksums for verification",
	522	},
	523	{ .ival = "md5",
	524	.oval = VERIFY_MD5,
	525	.help = "Use md5 checksums for verification",
	526	},
	527	},
	528	},
	529	{
	530	.name = "write_iolog",
	531	.type = FIO_OPT_STR_STORE,
	532	.off1 = td_var_offset(write_iolog_file),
	533	.help = "Store IO pattern to file",
	534	},
	535	{
	536	.name = "read_iolog",
	537	.type = FIO_OPT_STR_STORE,
	538	.off1 = td_var_offset(read_iolog_file),
	539	.help = "Playback IO pattern from file",
	540	},
	541	{
	542	.name = "exec_prerun",
	543	.type = FIO_OPT_STR_STORE,
	544	.off1 = td_var_offset(exec_prerun),
	545	.help = "Execute this file prior to running job",
	546	},
	547	{
	548	.name = "exec_postrun",
	549	.type = FIO_OPT_STR_STORE,
	550	.off1 = td_var_offset(exec_postrun),
	551	.help = "Execute this file after running job",
	552	},
	553	#ifdef FIO_HAVE_IOSCHED_SWITCH
	554	{
	555	.name = "ioscheduler",
	556	.type = FIO_OPT_STR_STORE,
	557	.off1 = td_var_offset(ioscheduler),
	558	.help = "Use this IO scheduler on the backing device",
	559	},
	560	#endif
	561	{
	562	.name = "zonesize",
	563	.type = FIO_OPT_STR_VAL,
564	.off1 = td_var_offset(zone_size),
565	.help = "Give size of an IO zone",
566	.def = "0",
567	},
568	{
569	.name = "zoneskip",
570	.type = FIO_OPT_STR_VAL,
571	.off1 = td_var_offset(zone_skip),
572	.help = "Space between IO zones",
573	.def = "0",
574	},
575	{
576	.name = "lockmem",
577	.type = FIO_OPT_STR_VAL,
578	.cb = str_lockmem_cb,
579	.help = "Lock down this amount of memory",
580	.def = "0",
581	},
582	{
583	.name = "rwmixcycle",
584	.type = FIO_OPT_INT,
585	.off1 = td_var_offset(rwmixcycle),
586	.help = "Cycle period for mixed read/write workloads (msec)",
587	.def = "500",
588	},
589	{
590	.name = "rwmixread",
591	.type = FIO_OPT_INT,
e47f799f	592	.off1 = td_var_offset(rwmix[DDIR_READ]),
214e1eca JA	593	.maxval = 100,
	594	.help = "Percentage of mixed workload that is reads",
	595	.def = "50",
	596	},
	597	{
	598	.name = "rwmixwrite",
	599	.type = FIO_OPT_INT,
e47f799f	600	.off1 = td_var_offset(rwmix[DDIR_WRITE]),
214e1eca JA	601	.maxval = 100,
	602	.help = "Percentage of mixed workload that is writes",
	603	.def = "50",
	604	},
	605	{
	606	.name = "nice",
	607	.type = FIO_OPT_INT,
	608	.off1 = td_var_offset(nice),
	609	.help = "Set job CPU nice value",
	610	.minval = -19,
	611	.maxval = 20,
	612	.def = "0",
	613	},
	614	#ifdef FIO_HAVE_IOPRIO
	615	{
	616	.name = "prio",
	617	.type = FIO_OPT_INT,
	618	.cb = str_prio_cb,
	619	.help = "Set job IO priority value",
	620	.minval = 0,
	621	.maxval = 7,
	622	},
	623	{
	624	.name = "prioclass",
	625	.type = FIO_OPT_INT,
	626	.cb = str_prioclass_cb,
	627	.help = "Set job IO priority class",
	628	.minval = 0,
	629	.maxval = 3,
	630	},
	631	#endif
	632	{
	633	.name = "thinktime",
	634	.type = FIO_OPT_INT,
	635	.off1 = td_var_offset(thinktime),
	636	.help = "Idle time between IO buffers (usec)",
	637	.def = "0",
	638	},
	639	{
	640	.name = "thinktime_spin",
	641	.type = FIO_OPT_INT,
	642	.off1 = td_var_offset(thinktime_spin),
	643	.help = "Start think time by spinning this amount (usec)",
	644	.def = "0",
	645	},
	646	{
	647	.name = "thinktime_blocks",
	648	.type = FIO_OPT_INT,
	649	.off1 = td_var_offset(thinktime_blocks),
	650	.help = "IO buffer period between 'thinktime'",
	651	.def = "1",
	652	},
	653	{
	654	.name = "rate",
	655	.type = FIO_OPT_INT,
	656	.off1 = td_var_offset(rate),
	657	.help = "Set bandwidth rate",
	658	},
	659	{
	660	.name = "ratemin",
	661	.type = FIO_OPT_INT,
	662	.off1 = td_var_offset(ratemin),
4e991c23 JA	663	.help = "Job must meet this rate or it will be shutdown",
	664	},
	665	{
	666	.name = "rate_iops",
	667	.type = FIO_OPT_INT,
	668	.off1 = td_var_offset(rate_iops),
	669	.help = "Limit IO used to this number of IO operations/sec",
	670	},
	671	{
	672	.name = "rate_iops_min",
	673	.type = FIO_OPT_INT,
	674	.off1 = td_var_offset(rate_iops_min),
	675	.help = "Job must meet this rate or it will be shutdown",
214e1eca JA	676	},
	677	{
	678	.name = "ratecycle",
	679	.type = FIO_OPT_INT,
	680	.off1 = td_var_offset(ratecycle),
	681	.help = "Window average for rate limits (msec)",
	682	.def = "1000",
	683	},
	684	{
	685	.name = "invalidate",
	686	.type = FIO_OPT_BOOL,
	687	.off1 = td_var_offset(invalidate_cache),
	688	.help = "Invalidate buffer/page cache prior to running job",
	689	.def = "1",
	690	},
	691	{
	692	.name = "sync",
	693	.type = FIO_OPT_BOOL,
	694	.off1 = td_var_offset(sync_io),
	695	.help = "Use O_SYNC for buffered writes",
	696	.def = "0",
	697	},
	698	{
	699	.name = "bwavgtime",
	700	.type = FIO_OPT_INT,
	701	.off1 = td_var_offset(bw_avg_time),
	702	.help = "Time window over which to calculate bandwidth (msec)",
	703	.def = "500",
	704	},
	705	{
	706	.name = "create_serialize",
	707	.type = FIO_OPT_BOOL,
	708	.off1 = td_var_offset(create_serialize),
	709	.help = "Serialize creating of job files",
	710	.def = "1",
	711	},
	712	{
	713	.name = "create_fsync",
	714	.type = FIO_OPT_BOOL,
	715	.off1 = td_var_offset(create_fsync),
	716	.help = "Fsync file after creation",
	717	.def = "1",
	718	},
	719	{
	720	.name = "cpuload",
	721	.type = FIO_OPT_INT,
	722	.off1 = td_var_offset(cpuload),
	723	.help = "Use this percentage of CPU",
	724	},
	725	{
	726	.name = "cpuchunks",
	727	.type = FIO_OPT_INT,
	728	.off1 = td_var_offset(cpucycle),
	729	.help = "Length of the CPU burn cycles (usecs)",
	730	.def = "50000",
	731	},
	732	#ifdef FIO_HAVE_CPU_AFFINITY
	733	{
	734	.name = "cpumask",
	735	.type = FIO_OPT_INT,
	736	.cb = str_cpumask_cb,
	737	.help = "CPU affinity mask",
	738	},
	739	#endif
740	{
741	.name = "end_fsync",
742	.type = FIO_OPT_BOOL,
743	.off1 = td_var_offset(end_fsync),
744	.help = "Include fsync at the end of job",
745	.def = "0",
746	},
747	{
748	.name = "fsync_on_close",
749	.type = FIO_OPT_BOOL,
750	.off1 = td_var_offset(fsync_on_close),
751	.help = "fsync files on close",
752	.def = "0",
753	},
754	{
755	.name = "unlink",
756	.type = FIO_OPT_BOOL,
757	.off1 = td_var_offset(unlink),
758	.help = "Unlink created files after job has completed",
759	.def = "0",
760	},
761	{
762	.name = "exitall",
763	.type = FIO_OPT_STR_SET,
764	.cb = str_exitall_cb,
765	.help = "Terminate all jobs when one exits",
766	},
767	{
768	.name = "stonewall",
769	.type = FIO_OPT_STR_SET,
770	.off1 = td_var_offset(stonewall),
771	.help = "Insert a hard barrier between this job and previous",
772	},
b3d62a75 JA	773	{
	774	.name = "new_group",
	775	.type = FIO_OPT_STR_SET,
	776	.off1 = td_var_offset(new_group),
	777	.help = "Mark the start of a new group (for reporting)",
	778	},
214e1eca JA	779	{
	780	.name = "thread",
	781	.type = FIO_OPT_STR_SET,
	782	.off1 = td_var_offset(use_thread),
	783	.help = "Use threads instead of forks",
	784	},
	785	{
	786	.name = "write_bw_log",
	787	.type = FIO_OPT_STR_SET,
	788	.off1 = td_var_offset(write_bw_log),
	789	.help = "Write log of bandwidth during run",
	790	},
	791	{
	792	.name = "write_lat_log",
	793	.type = FIO_OPT_STR_SET,
	794	.off1 = td_var_offset(write_lat_log),
	795	.help = "Write log of latency during run",
	796	},
	797	{
	798	.name = "hugepage-size",
	799	.type = FIO_OPT_STR_VAL,
	800	.off1 = td_var_offset(hugepage_size),
	801	.help = "When using hugepages, specify size of each page",
	802	.def = __stringify(FIO_HUGE_PAGE),
	803	},
	804	{
	805	.name = "group_reporting",
	806	.type = FIO_OPT_STR_SET,
	807	.off1 = td_var_offset(group_reporting),
	808	.help = "Do reporting on a per-group basis",
	809	},
	810	{
	811	.name = NULL,
	812	},
	813	};
	814
	815	void fio_options_dup_and_init(struct option *long_options)
	816	{
	817	struct fio_option *o;
	818	unsigned int i;
	819
	820	options_init(options);
	821
	822	i = 0;
	823	while (long_options[i].name)
	824	i++;
	825
	826	o = &options[0];
	827	while (o->name) {
	828	long_options[i].name = o->name;
	829	long_options[i].val = FIO_GETOPT_JOB;
	830	if (o->type == FIO_OPT_STR_SET)
	831	long_options[i].has_arg = no_argument;
	832	else
	833	long_options[i].has_arg = required_argument;
	834
	835	i++;
	836	o++;
	837	assert(i < FIO_NR_OPTIONS);
	838	}
	839	}
	840
	841	int fio_option_parse(struct thread_data td, const char opt)
	842	{
843	return parse_option(opt, options, td);
844	}
845
846	int fio_cmd_option_parse(struct thread_data td, const char opt, char *val)
847	{
848	return parse_cmd_option(opt, val, options, td);
849	}
850
851	void fio_fill_default_options(struct thread_data *td)
852	{
853	fill_default_options(td, options);
854	}
855
856	int fio_show_option_help(const char *opt)
857	{
858	return show_cmd_help(options, opt);
859	}