[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);

	printf("ddir_nr=%d\n", td->o.ddir_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
	39	printf("ddir_nr=%d\n", td->o.ddir_nr);
	40
	41	return 0;
	42	}
	43
214e1eca JA	44	static int str_mem_cb(void data, const char mem)
	45	{
	46	struct thread_data *td = data;
	47
2dc1bbeb	48	if (td->o.mem_type == MEM_MMAPHUGE \|\| td->o.mem_type == MEM_MMAP) {
214e1eca	49	td->mmapfile = get_opt_postfix(mem);
2dc1bbeb	50	if (td->o.mem_type == MEM_MMAPHUGE && !td->mmapfile) {
214e1eca JA	51	log_err("fio: mmaphuge:/path/to/file\n");
	52	return 1;
	53	}
	54	}
	55
	56	return 0;
	57	}
	58
	59	static int str_lockmem_cb(void fio_unused data, unsigned long val)
	60	{
	61	mlock_size = *val;
	62	return 0;
	63	}
	64
	65	#ifdef FIO_HAVE_IOPRIO
	66	static int str_prioclass_cb(void data, unsigned int val)
	67	{
	68	struct thread_data *td = data;
	69
	70	td->ioprio \|= *val << IOPRIO_CLASS_SHIFT;
	71	return 0;
	72	}
	73
	74	static int str_prio_cb(void data, unsigned int val)
	75	{
	76	struct thread_data *td = data;
	77
	78	td->ioprio \|= *val;
	79	return 0;
	80	}
	81	#endif
	82
	83	static int str_exitall_cb(void)
	84	{
	85	exitall_on_terminate = 1;
	86	return 0;
	87	}
	88
	89	static void fill_cpu_mask(os_cpu_mask_t cpumask, int cpu)
	90	{
	91	#ifdef FIO_HAVE_CPU_AFFINITY
	92	unsigned int i;
	93
	94	CPU_ZERO(&cpumask);
	95
	96	for (i = 0; i < sizeof(int) * 8; i++) {
	97	if ((1 << i) & cpu)
	98	CPU_SET(i, &cpumask);
	99	}
	100	#endif
	101	}
	102
	103	static int str_cpumask_cb(void data, unsigned int val)
	104	{
	105	struct thread_data *td = data;
	106
2dc1bbeb	107	fill_cpu_mask(td->o.cpumask, *val);
214e1eca JA	108	return 0;
	109	}
	110
	111	static int str_fst_cb(void data, const char str)
	112	{
	113	struct thread_data *td = data;
	114	char *nr = get_opt_postfix(str);
	115
	116	td->file_service_nr = 1;
	117	if (nr)
	118	td->file_service_nr = atoi(nr);
	119
	120	return 0;
	121	}
	122
	123	static int str_filename_cb(void data, const char input)
	124	{
	125	struct thread_data *td = data;
	126	char fname, str, *p;
	127
	128	p = str = strdup(input);
	129
	130	strip_blank_front(&str);
	131	strip_blank_end(str);
	132
	133	if (!td->files_index)
2dc1bbeb	134	td->o.nr_files = 0;
214e1eca JA	135
	136	while ((fname = strsep(&str, ":")) != NULL) {
	137	if (!strlen(fname))
	138	break;
	139	add_file(td, fname);
2dc1bbeb	140	td->o.nr_files++;
214e1eca JA	141	}
	142
	143	free(p);
	144	return 0;
	145	}
	146
	147	static int str_directory_cb(void data, const char fio_unused str)
	148	{
	149	struct thread_data *td = data;
	150	struct stat sb;
	151
2dc1bbeb JA	152	if (lstat(td->o.directory, &sb) < 0) {
2dc1bbeb JA	153	log_err("fio: %s is not a directory\n", td->o.directory);
214e1eca JA	154	td_verror(td, errno, "lstat");
	155	return 1;
	156	}
	157	if (!S_ISDIR(sb.st_mode)) {
2dc1bbeb	158	log_err("fio: %s is not a directory\n", td->o.directory);
214e1eca JA	159	return 1;
	160	}
	161
	162	return 0;
	163	}
	164
	165	static int str_opendir_cb(void data, const char fio_unused str)
	166	{
	167	struct thread_data *td = data;
	168
	169	if (!td->files_index)
2dc1bbeb	170	td->o.nr_files = 0;
214e1eca	171
2dc1bbeb	172	return add_dir_files(td, td->o.opendir);
214e1eca JA	173	}
	174
	175
	176	#define __stringify_1(x) #x
	177	#define __stringify(x) __stringify_1(x)
	178
	179	/*
	180	* Map of job/command line options
	181	*/
	182	static struct fio_option options[] = {
	183	{
	184	.name = "description",
	185	.type = FIO_OPT_STR_STORE,
	186	.off1 = td_var_offset(description),
	187	.help = "Text job description",
	188	},
	189	{
	190	.name = "name",
	191	.type = FIO_OPT_STR_STORE,
	192	.off1 = td_var_offset(name),
	193	.help = "Name of this job",
	194	},
	195	{
	196	.name = "directory",
	197	.type = FIO_OPT_STR_STORE,
	198	.off1 = td_var_offset(directory),
	199	.cb = str_directory_cb,
	200	.help = "Directory to store files in",
	201	},
	202	{
	203	.name = "filename",
	204	.type = FIO_OPT_STR_STORE,
	205	.off1 = td_var_offset(filename),
	206	.cb = str_filename_cb,
	207	.help = "File(s) to use for the workload",
	208	},
	209	{
	210	.name = "opendir",
	211	.type = FIO_OPT_STR_STORE,
	212	.off1 = td_var_offset(opendir),
	213	.cb = str_opendir_cb,
	214	.help = "Recursively add files from this directory and down",
	215	},
	216	{
	217	.name = "rw",
d3aad8f2	218	.alias = "readwrite",
214e1eca	219	.type = FIO_OPT_STR,
211097b2	220	.cb = str_rw_cb,
214e1eca JA	221	.off1 = td_var_offset(td_ddir),
	222	.help = "IO direction",
	223	.def = "read",
	224	.posval = {
	225	{ .ival = "read",
	226	.oval = TD_DDIR_READ,
	227	.help = "Sequential read",
	228	},
	229	{ .ival = "write",
	230	.oval = TD_DDIR_WRITE,
	231	.help = "Sequential write",
	232	},
	233	{ .ival = "randread",
	234	.oval = TD_DDIR_RANDREAD,
	235	.help = "Random read",
	236	},
	237	{ .ival = "randwrite",
	238	.oval = TD_DDIR_RANDWRITE,
	239	.help = "Random write",
	240	},
	241	{ .ival = "rw",
	242	.oval = TD_DDIR_RW,
	243	.help = "Sequential read and write mix",
	244	},
	245	{ .ival = "randrw",
	246	.oval = TD_DDIR_RANDRW,
	247	.help = "Random read and write mix"
	248	},
	249	},
	250	},
	251	{
	252	.name = "ioengine",
	253	.type = FIO_OPT_STR_STORE,
	254	.off1 = td_var_offset(ioengine),
	255	.help = "IO engine to use",
	256	.def = "sync",
	257	.posval = {
	258	{ .ival = "sync",
	259	.help = "Use read/write",
	260	},
	261	#ifdef FIO_HAVE_LIBAIO
	262	{ .ival = "libaio",
	263	.help = "Linux native asynchronous IO",
	264	},
	265	#endif
	266	#ifdef FIO_HAVE_POSIXAIO
	267	{ .ival = "posixaio",
	268	.help = "POSIX asynchronous IO",
	269	},
	270	#endif
	271	{ .ival = "mmap",
	272	.help = "Memory mapped IO",
	273	},
	274	#ifdef FIO_HAVE_SPLICE
	275	{ .ival = "splice",
	276	.help = "splice/vmsplice based IO",
	277	},
	278	#endif
	279	#ifdef FIO_HAVE_SGIO
	280	{ .ival = "sg",
	281	.help = "SCSI generic v3 IO",
	282	},
	283	#endif
	284	{ .ival = "null",
285	.help = "Testing engine (no data transfer)",
286	},
287	{ .ival = "net",
288	.help = "Network IO",
289	},
290	#ifdef FIO_HAVE_SYSLET
291	{ .ival = "syslet-rw",
292	.help = "syslet enabled async pread/pwrite IO",
293	},
294	#endif
295	{ .ival = "cpuio",
296	.help = "CPU cycler burner engine",
297	},
b8c82a46 JA	298	#ifdef FIO_HAVE_GUASI
	299	{ .ival = "guasi",
	300	.help = "GUASI IO engine",
	301	},
	302	#endif
214e1eca JA	303	{ .ival = "external",
	304	.help = "Load external engine (append name)",
	305	},
	306	},
	307	},
	308	{
	309	.name = "iodepth",
	310	.type = FIO_OPT_INT,
	311	.off1 = td_var_offset(iodepth),
	312	.help = "Amount of IO buffers to keep in flight",
	313	.def = "1",
	314	},
	315	{
	316	.name = "iodepth_batch",
	317	.type = FIO_OPT_INT,
	318	.off1 = td_var_offset(iodepth_batch),
	319	.help = "Number of IO to submit in one go",
	320	},
	321	{
	322	.name = "iodepth_low",
	323	.type = FIO_OPT_INT,
	324	.off1 = td_var_offset(iodepth_low),
	325	.help = "Low water mark for queuing depth",
	326	},
	327	{
	328	.name = "size",
	329	.type = FIO_OPT_STR_VAL,
2dc1bbeb	330	.off1 = td_var_offset(size),
214e1eca JA	331	.help = "Total size of device or files",
	332	},
	333	{
	334	.name = "filesize",
	335	.type = FIO_OPT_STR_VAL,
	336	.off1 = td_var_offset(file_size_low),
	337	.off2 = td_var_offset(file_size_high),
	338	.help = "Size of individual files",
	339	},
	340	{
	341	.name = "bs",
d3aad8f2	342	.alias = "blocksize",
214e1eca JA	343	.type = FIO_OPT_STR_VAL_INT,
	344	.off1 = td_var_offset(bs[DDIR_READ]),
	345	.off2 = td_var_offset(bs[DDIR_WRITE]),
	346	.help = "Block size unit",
	347	.def = "4k",
	348	},
	349	{
	350	.name = "bsrange",
d3aad8f2	351	.alias = "blocksize_range",
214e1eca JA	352	.type = FIO_OPT_RANGE,
	353	.off1 = td_var_offset(min_bs[DDIR_READ]),
	354	.off2 = td_var_offset(max_bs[DDIR_READ]),
	355	.off3 = td_var_offset(min_bs[DDIR_WRITE]),
	356	.off4 = td_var_offset(max_bs[DDIR_WRITE]),
	357	.help = "Set block size range (in more detail than bs)",
	358	},
	359	{
	360	.name = "bs_unaligned",
d3aad8f2	361	.alias = "blocksize_unaligned",
214e1eca JA	362	.type = FIO_OPT_STR_SET,
	363	.off1 = td_var_offset(bs_unaligned),
	364	.help = "Don't sector align IO buffer sizes",
	365	},
	366	{
	367	.name = "offset",
	368	.type = FIO_OPT_STR_VAL,
	369	.off1 = td_var_offset(start_offset),
	370	.help = "Start IO from this offset",
	371	.def = "0",
	372	},
	373	{
	374	.name = "randrepeat",
	375	.type = FIO_OPT_BOOL,
	376	.off1 = td_var_offset(rand_repeatable),
	377	.help = "Use repeatable random IO pattern",
	378	.def = "1",
	379	},
	380	{
	381	.name = "norandommap",
	382	.type = FIO_OPT_STR_SET,
	383	.off1 = td_var_offset(norandommap),
	384	.help = "Accept potential duplicate random blocks",
	385	},
	386	{
	387	.name = "nrfiles",
	388	.type = FIO_OPT_INT,
	389	.off1 = td_var_offset(nr_files),
	390	.help = "Split job workload between this number of files",
	391	.def = "1",
	392	},
	393	{
	394	.name = "openfiles",
	395	.type = FIO_OPT_INT,
	396	.off1 = td_var_offset(open_files),
	397	.help = "Number of files to keep open at the same time",
	398	},
	399	{
	400	.name = "file_service_type",
	401	.type = FIO_OPT_STR,
	402	.cb = str_fst_cb,
	403	.off1 = td_var_offset(file_service_type),
	404	.help = "How to select which file to service next",
	405	.def = "roundrobin",
	406	.posval = {
	407	{ .ival = "random",
	408	.oval = FIO_FSERVICE_RANDOM,
	409	.help = "Choose a file at random",
	410	},
	411	{ .ival = "roundrobin",
	412	.oval = FIO_FSERVICE_RR,
	413	.help = "Round robin select files",
	414	},
	415	},
	416	},
	417	{
	418	.name = "fsync",
	419	.type = FIO_OPT_INT,
	420	.off1 = td_var_offset(fsync_blocks),
	421	.help = "Issue fsync for writes every given number of blocks",
	422	.def = "0",
	423	},
	424	{
	425	.name = "direct",
426	.type = FIO_OPT_BOOL,
427	.off1 = td_var_offset(odirect),
428	.help = "Use O_DIRECT IO (negates buffered)",
429	.def = "0",
430	},
431	{
432	.name = "buffered",
433	.type = FIO_OPT_BOOL,
434	.off1 = td_var_offset(odirect),
435	.neg = 1,
436	.help = "Use buffered IO (negates direct)",
437	.def = "1",
438	},
439	{
440	.name = "overwrite",
441	.type = FIO_OPT_BOOL,
442	.off1 = td_var_offset(overwrite),
443	.help = "When writing, set whether to overwrite current data",
444	.def = "0",
445	},
446	{
447	.name = "loops",
448	.type = FIO_OPT_INT,
449	.off1 = td_var_offset(loops),
450	.help = "Number of times to run the job",
451	.def = "1",
452	},
453	{
454	.name = "numjobs",
455	.type = FIO_OPT_INT,
456	.off1 = td_var_offset(numjobs),
457	.help = "Duplicate this job this many times",
458	.def = "1",
459	},
460	{
461	.name = "startdelay",
462	.type = FIO_OPT_INT,
463	.off1 = td_var_offset(start_delay),
464	.help = "Only start job when this period has passed",
465	.def = "0",
466	},
467	{
468	.name = "runtime",
469	.alias = "timeout",
470	.type = FIO_OPT_STR_VAL_TIME,
471	.off1 = td_var_offset(timeout),
472	.help = "Stop workload when this amount of time has passed",
473	.def = "0",
474	},
475	{
476	.name = "mem",
d3aad8f2	477	.alias = "iomem",
214e1eca JA	478	.type = FIO_OPT_STR,
	479	.cb = str_mem_cb,
	480	.off1 = td_var_offset(mem_type),
	481	.help = "Backing type for IO buffers",
	482	.def = "malloc",
	483	.posval = {
	484	{ .ival = "malloc",
	485	.oval = MEM_MALLOC,
	486	.help = "Use malloc(3) for IO buffers",
	487	},
37c8cdfe JA	488	{ .ival = "shm",
	489	.oval = MEM_SHM,
	490	.help = "Use shared memory segments for IO buffers",
	491	},
214e1eca JA	492	#ifdef FIO_HAVE_HUGETLB
	493	{ .ival = "shmhuge",
	494	.oval = MEM_SHMHUGE,
	495	.help = "Like shm, but use huge pages",
	496	},
b370e46a	497	#endif
37c8cdfe JA	498	{ .ival = "mmap",
	499	.oval = MEM_MMAP,
	500	.help = "Use mmap(2) (file or anon) for IO buffers",
	501	},
214e1eca JA	502	#ifdef FIO_HAVE_HUGETLB
	503	{ .ival = "mmaphuge",
	504	.oval = MEM_MMAPHUGE,
	505	.help = "Like mmap, but use huge pages",
	506	},
	507	#endif
	508	},
	509	},
	510	{
	511	.name = "verify",
	512	.type = FIO_OPT_STR,
	513	.off1 = td_var_offset(verify),
	514	.help = "Verify data written",
	515	.def = "0",
	516	.posval = {
	517	{ .ival = "0",
	518	.oval = VERIFY_NONE,
	519	.help = "Don't do IO verification",
	520	},
	521	{ .ival = "crc32",
	522	.oval = VERIFY_CRC32,
	523	.help = "Use crc32 checksums for verification",
	524	},
	525	{ .ival = "md5",
	526	.oval = VERIFY_MD5,
	527	.help = "Use md5 checksums for verification",
	528	},
	529	},
	530	},
	531	{
	532	.name = "write_iolog",
	533	.type = FIO_OPT_STR_STORE,
	534	.off1 = td_var_offset(write_iolog_file),
	535	.help = "Store IO pattern to file",
	536	},
	537	{
	538	.name = "read_iolog",
	539	.type = FIO_OPT_STR_STORE,
	540	.off1 = td_var_offset(read_iolog_file),
	541	.help = "Playback IO pattern from file",
	542	},
	543	{
	544	.name = "exec_prerun",
	545	.type = FIO_OPT_STR_STORE,
	546	.off1 = td_var_offset(exec_prerun),
	547	.help = "Execute this file prior to running job",
	548	},
	549	{
	550	.name = "exec_postrun",
	551	.type = FIO_OPT_STR_STORE,
	552	.off1 = td_var_offset(exec_postrun),
	553	.help = "Execute this file after running job",
	554	},
	555	#ifdef FIO_HAVE_IOSCHED_SWITCH
	556	{
	557	.name = "ioscheduler",
	558	.type = FIO_OPT_STR_STORE,
	559	.off1 = td_var_offset(ioscheduler),
	560	.help = "Use this IO scheduler on the backing device",
	561	},
	562	#endif
	563	{
	564	.name = "zonesize",
	565	.type = FIO_OPT_STR_VAL,
566	.off1 = td_var_offset(zone_size),
567	.help = "Give size of an IO zone",
568	.def = "0",
569	},
570	{
571	.name = "zoneskip",
572	.type = FIO_OPT_STR_VAL,
573	.off1 = td_var_offset(zone_skip),
574	.help = "Space between IO zones",
575	.def = "0",
576	},
577	{
578	.name = "lockmem",
579	.type = FIO_OPT_STR_VAL,
580	.cb = str_lockmem_cb,
581	.help = "Lock down this amount of memory",
582	.def = "0",
583	},
584	{
585	.name = "rwmixcycle",
586	.type = FIO_OPT_INT,
587	.off1 = td_var_offset(rwmixcycle),
588	.help = "Cycle period for mixed read/write workloads (msec)",
589	.def = "500",
590	},
591	{
592	.name = "rwmixread",
593	.type = FIO_OPT_INT,
e47f799f	594	.off1 = td_var_offset(rwmix[DDIR_READ]),
214e1eca JA	595	.maxval = 100,
	596	.help = "Percentage of mixed workload that is reads",
	597	.def = "50",
	598	},
	599	{
	600	.name = "rwmixwrite",
	601	.type = FIO_OPT_INT,
e47f799f	602	.off1 = td_var_offset(rwmix[DDIR_WRITE]),
214e1eca JA	603	.maxval = 100,
	604	.help = "Percentage of mixed workload that is writes",
	605	.def = "50",
	606	},
	607	{
	608	.name = "nice",
	609	.type = FIO_OPT_INT,
	610	.off1 = td_var_offset(nice),
	611	.help = "Set job CPU nice value",
	612	.minval = -19,
	613	.maxval = 20,
	614	.def = "0",
	615	},
	616	#ifdef FIO_HAVE_IOPRIO
	617	{
	618	.name = "prio",
	619	.type = FIO_OPT_INT,
	620	.cb = str_prio_cb,
	621	.help = "Set job IO priority value",
	622	.minval = 0,
	623	.maxval = 7,
	624	},
	625	{
	626	.name = "prioclass",
	627	.type = FIO_OPT_INT,
	628	.cb = str_prioclass_cb,
	629	.help = "Set job IO priority class",
	630	.minval = 0,
	631	.maxval = 3,
	632	},
	633	#endif
	634	{
	635	.name = "thinktime",
	636	.type = FIO_OPT_INT,
	637	.off1 = td_var_offset(thinktime),
	638	.help = "Idle time between IO buffers (usec)",
	639	.def = "0",
	640	},
	641	{
	642	.name = "thinktime_spin",
	643	.type = FIO_OPT_INT,
	644	.off1 = td_var_offset(thinktime_spin),
	645	.help = "Start think time by spinning this amount (usec)",
	646	.def = "0",
	647	},
	648	{
	649	.name = "thinktime_blocks",
	650	.type = FIO_OPT_INT,
	651	.off1 = td_var_offset(thinktime_blocks),
	652	.help = "IO buffer period between 'thinktime'",
	653	.def = "1",
	654	},
	655	{
	656	.name = "rate",
	657	.type = FIO_OPT_INT,
	658	.off1 = td_var_offset(rate),
	659	.help = "Set bandwidth rate",
	660	},
	661	{
	662	.name = "ratemin",
	663	.type = FIO_OPT_INT,
	664	.off1 = td_var_offset(ratemin),
4e991c23 JA	665	.help = "Job must meet this rate or it will be shutdown",
	666	},
	667	{
	668	.name = "rate_iops",
	669	.type = FIO_OPT_INT,
	670	.off1 = td_var_offset(rate_iops),
	671	.help = "Limit IO used to this number of IO operations/sec",
	672	},
	673	{
	674	.name = "rate_iops_min",
	675	.type = FIO_OPT_INT,
	676	.off1 = td_var_offset(rate_iops_min),
	677	.help = "Job must meet this rate or it will be shutdown",
214e1eca JA	678	},
	679	{
	680	.name = "ratecycle",
	681	.type = FIO_OPT_INT,
	682	.off1 = td_var_offset(ratecycle),
	683	.help = "Window average for rate limits (msec)",
	684	.def = "1000",
	685	},
	686	{
	687	.name = "invalidate",
	688	.type = FIO_OPT_BOOL,
	689	.off1 = td_var_offset(invalidate_cache),
	690	.help = "Invalidate buffer/page cache prior to running job",
	691	.def = "1",
	692	},
	693	{
	694	.name = "sync",
	695	.type = FIO_OPT_BOOL,
	696	.off1 = td_var_offset(sync_io),
	697	.help = "Use O_SYNC for buffered writes",
	698	.def = "0",
	699	},
	700	{
	701	.name = "bwavgtime",
	702	.type = FIO_OPT_INT,
	703	.off1 = td_var_offset(bw_avg_time),
	704	.help = "Time window over which to calculate bandwidth (msec)",
	705	.def = "500",
	706	},
	707	{
	708	.name = "create_serialize",
	709	.type = FIO_OPT_BOOL,
	710	.off1 = td_var_offset(create_serialize),
	711	.help = "Serialize creating of job files",
	712	.def = "1",
	713	},
	714	{
	715	.name = "create_fsync",
	716	.type = FIO_OPT_BOOL,
	717	.off1 = td_var_offset(create_fsync),
	718	.help = "Fsync file after creation",
	719	.def = "1",
	720	},
	721	{
	722	.name = "cpuload",
	723	.type = FIO_OPT_INT,
	724	.off1 = td_var_offset(cpuload),
	725	.help = "Use this percentage of CPU",
	726	},
	727	{
	728	.name = "cpuchunks",
	729	.type = FIO_OPT_INT,
	730	.off1 = td_var_offset(cpucycle),
	731	.help = "Length of the CPU burn cycles (usecs)",
	732	.def = "50000",
	733	},
	734	#ifdef FIO_HAVE_CPU_AFFINITY
	735	{
	736	.name = "cpumask",
	737	.type = FIO_OPT_INT,
	738	.cb = str_cpumask_cb,
	739	.help = "CPU affinity mask",
	740	},
	741	#endif
742	{
743	.name = "end_fsync",
744	.type = FIO_OPT_BOOL,
745	.off1 = td_var_offset(end_fsync),
746	.help = "Include fsync at the end of job",
747	.def = "0",
748	},
749	{
750	.name = "fsync_on_close",
751	.type = FIO_OPT_BOOL,
752	.off1 = td_var_offset(fsync_on_close),
753	.help = "fsync files on close",
754	.def = "0",
755	},
756	{
757	.name = "unlink",
758	.type = FIO_OPT_BOOL,
759	.off1 = td_var_offset(unlink),
760	.help = "Unlink created files after job has completed",
761	.def = "0",
762	},
763	{
764	.name = "exitall",
765	.type = FIO_OPT_STR_SET,
766	.cb = str_exitall_cb,
767	.help = "Terminate all jobs when one exits",
768	},
769	{
770	.name = "stonewall",
771	.type = FIO_OPT_STR_SET,
772	.off1 = td_var_offset(stonewall),
773	.help = "Insert a hard barrier between this job and previous",
774	},
b3d62a75 JA	775	{
	776	.name = "new_group",
	777	.type = FIO_OPT_STR_SET,
	778	.off1 = td_var_offset(new_group),
	779	.help = "Mark the start of a new group (for reporting)",
	780	},
214e1eca JA	781	{
	782	.name = "thread",
	783	.type = FIO_OPT_STR_SET,
	784	.off1 = td_var_offset(use_thread),
	785	.help = "Use threads instead of forks",
	786	},
	787	{
	788	.name = "write_bw_log",
	789	.type = FIO_OPT_STR_SET,
	790	.off1 = td_var_offset(write_bw_log),
	791	.help = "Write log of bandwidth during run",
	792	},
	793	{
	794	.name = "write_lat_log",
	795	.type = FIO_OPT_STR_SET,
	796	.off1 = td_var_offset(write_lat_log),
	797	.help = "Write log of latency during run",
	798	},
	799	{
	800	.name = "hugepage-size",
	801	.type = FIO_OPT_STR_VAL,
	802	.off1 = td_var_offset(hugepage_size),
	803	.help = "When using hugepages, specify size of each page",
	804	.def = __stringify(FIO_HUGE_PAGE),
	805	},
	806	{
	807	.name = "group_reporting",
	808	.type = FIO_OPT_STR_SET,
	809	.off1 = td_var_offset(group_reporting),
	810	.help = "Do reporting on a per-group basis",
	811	},
	812	{
	813	.name = NULL,
	814	},
	815	};
	816
	817	void fio_options_dup_and_init(struct option *long_options)
	818	{
	819	struct fio_option *o;
	820	unsigned int i;
	821
	822	options_init(options);
	823
	824	i = 0;
	825	while (long_options[i].name)
	826	i++;
	827
	828	o = &options[0];
	829	while (o->name) {
	830	long_options[i].name = o->name;
	831	long_options[i].val = FIO_GETOPT_JOB;
	832	if (o->type == FIO_OPT_STR_SET)
	833	long_options[i].has_arg = no_argument;
	834	else
	835	long_options[i].has_arg = required_argument;
	836
	837	i++;
	838	o++;
	839	assert(i < FIO_NR_OPTIONS);
	840	}
	841	}
	842
	843	int fio_option_parse(struct thread_data td, const char opt)
	844	{
845	return parse_option(opt, options, td);
846	}
847
848	int fio_cmd_option_parse(struct thread_data td, const char opt, char *val)
849	{
850	return parse_cmd_option(opt, val, options, td);
851	}
852
853	void fio_fill_default_options(struct thread_data *td)
854	{
855	fill_default_options(td, options);
856	}
857
858	int fio_show_option_help(const char *opt)
859	{
860	return show_cmd_help(options, opt);
861	}