.help = "IO direction",
.def = "read",
.posval = {
- { .ival = "read", .oval = TD_DDIR_READ },
- { .ival = "write", .oval = TD_DDIR_WRITE },
- { .ival = "randread", .oval = TD_DDIR_RANDREAD },
- { .ival = "randwrite", .oval = TD_DDIR_RANDWRITE },
- { .ival = "rw", .oval = TD_DDIR_RW },
- { .ival = "randrw", .oval = TD_DDIR_RANDRW },
+ { .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",
.help = "IO engine to use",
.def = "sync",
.posval = {
- { .ival = "sync", },
+ { .ival = "sync",
+ .help = "Use read/write",
+ },
#ifdef FIO_HAVE_LIBAIO
- { .ival = "libaio", },
+ { .ival = "libaio",
+ .help = "Linux native asynchronous IO",
+ },
#endif
#ifdef FIO_HAVE_POSIXAIO
- { .ival = "posixaio", },
+ { .ival = "posixaio",
+ .help = "POSIX asynchronous IO",
+ },
#endif
- { .ival = "mmap", },
+ { .ival = "mmap",
+ .help = "Memory mapped IO",
+ },
#ifdef FIO_HAVE_SPLICE
- { .ival = "splice", },
+ { .ival = "splice",
+ .help = "splice/vmsplice based IO",
+ },
#endif
#ifdef FIO_HAVE_SGIO
- { .ival = "sg", },
+ { .ival = "sg",
+ .help = "SCSI generic v3 IO",
+ },
#endif
- { .ival = "null", }, { .ival = "net", },
+ { .ival = "null",
+ .help = "Testing engine (no data transfer)",
+ },
+ { .ival = "net",
+ .help = "Network IO",
+ },
#ifdef FIO_HAVE_SYSLET
- { .ival = "syslet-rw", },
+ { .ival = "syslet-rw",
+ .help = "syslet enabled async pread/pwrite IO",
+ },
#endif
- { .ival = "cpuio", },
- { .ival = "external", },
+ { .ival = "cpuio",
+ .help = "CPU cycler burner engine",
+ },
+ { .ival = "external",
+ .help = "Load external engine (append name)",
},
+ },
},
{
.name = "iodepth",
.help = "How to select which file to service next",
.def = "roundrobin",
.posval = {
- { .ival = "random", .oval = FIO_FSERVICE_RANDOM },
- { .ival = "roundrobin", .oval = FIO_FSERVICE_RR },
+ { .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",
.help = "Backing type for IO buffers",
.def = "malloc",
.posval = {
- { .ival = "malloc", .oval = MEM_MALLOC },
- { .ival = "shm", .oval = MEM_SHM },
+ { .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 },
+ { .ival = "shmhuge",
+ .oval = MEM_SHMHUGE,
+ .help = "Like shm, but use huge pages",
+ },
#endif
- { .ival = "mmap", .oval = MEM_MMAP },
+ { .ival = "mmap",
+ .oval = MEM_MMAP,
+ .help = "Use mmap(2) (file or anon) for IO buffers",
+ },
#ifdef FIO_HAVE_HUGETLB
- { .ival = "mmaphuge", .oval = MEM_MMAPHUGE },
-#endif
+ { .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 sum function",
+ .help = "Verify data written",
.def = "0",
.posval = {
- { .ival = "0", .oval = VERIFY_NONE },
- { .ival = "crc32", .oval = VERIFY_CRC32 },
- { .ival = "md5", .oval = VERIFY_MD5 },
+ { .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",
return p;
}
+static int exists_and_not_file(const char *filename)
+{
+ struct stat sb;
+
+ if (lstat(filename, &sb) == -1)
+ return 0;
+
+ if (S_ISREG(sb.st_mode))
+ return 0;
+
+ return 1;
+}
+
/*
* Adds a job to the list of things todo. Sanitizes the various options
* to make sure we don't have conflicts, and initializes various
struct fio_file *f;
const char *engine;
char fname[PATH_MAX];
- int numjobs;
+ int numjobs, file_alloced;
/*
* the def_thread is just for options, it's not a real job
if (td->odirect)
td->io_ops->flags |= FIO_RAWIO;
+ file_alloced = 0;
if (!td->filename && !td->files_index) {
- td->filename = strdup(jobname);
+ file_alloced = 1;
- if (td->nr_files == 1)
- add_file(td, td->filename);
+ if (td->nr_files == 1 && exists_and_not_file(jobname))
+ add_file(td, jobname);
else {
for (i = 0; i < td->nr_files; i++) {
- sprintf(fname, "%s.%d.%d", td->filename, td->thread_number, i);
+ sprintf(fname, "%s.%d.%d", jobname, td->thread_number, i);
add_file(td, fname);
}
}
td_new->numjobs = 1;
td_new->stonewall = 0;
+
+ if (file_alloced) {
+ td_new->filename = NULL;
+ td_new->files_index = 0;
+ td_new->files = NULL;
+ }
+
job_add_num = numjobs - 1;
if (add_job(td_new, jobname, job_add_num))
projects / fio.git / blobdiff