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Define OS preferred IO engine
[fio.git] / options.c
diff --git a/options.c b/options.c
index 82a7289e517ff1d316f8b14fa59f592b11903f57..de2d037093481bc4bfe4797f69ac089b74b5db4f 100644 (file)
--- a/options.c
+++ b/options.c
@@ -440,6 +440,16 @@ static int str_verify_cpus_allowed_cb(void *data, const char *input)
 }
 #endif
 
+#ifdef FIO_HAVE_TRIM
+static int str_verify_trim_cb(void *data, unsigned long long *val)
+{
+       struct thread_data *td = data;
+
+       td->o.trim_percentage = *val;
+       return 0;
+}
+#endif
+
 static int str_fst_cb(void *data, const char *str)
 {
        struct thread_data *td = data;
@@ -665,6 +675,11 @@ static int str_verify_pattern_cb(void *data, const char *input)
                }
        }
        td->o.verify_pattern_bytes = i;
+       /*
+        * VERIFY_META could already be set
+        */
+       if (td->o.verify == VERIFY_NONE)
+               td->o.verify = VERIFY_PATTERN;
        return 0;
 }
 
@@ -903,7 +918,7 @@ static struct fio_option options[FIO_MAX_OPTS] = {
                .type   = FIO_OPT_STR_STORE,
                .off1   = td_var_offset(ioengine),
                .help   = "IO engine to use",
-               .def    = "sync",
+               .def    = FIO_PREFERRED_ENGINE,
                .posval = {
                          { .ival = "sync",
                            .help = "Use read/write",
@@ -912,7 +927,7 @@ static struct fio_option options[FIO_MAX_OPTS] = {
                            .help = "Use pread/pwrite",
                          },
                          { .ival = "vsync",
-                            .help = "Use readv/writev",
+                           .help = "Use readv/writev",
                          },
 #ifdef FIO_HAVE_LIBAIO
                          { .ival = "libaio",
@@ -928,9 +943,14 @@ static struct fio_option options[FIO_MAX_OPTS] = {
                          { .ival = "solarisaio",
                            .help = "Solaris native asynchronous IO",
                          },
+#endif
+#ifdef FIO_HAVE_WINDOWSAIO
+                         { .ival = "windowsaio",
+                           .help = "Windows native asynchronous IO"
+                         },
 #endif
                          { .ival = "mmap",
-                           .help = "Memory mapped IO",
+                           .help = "Memory mapped IO"
                          },
 #ifdef FIO_HAVE_SPLICE
                          { .ival = "splice",
@@ -957,12 +977,17 @@ static struct fio_option options[FIO_MAX_OPTS] = {
                          },
 #endif
                          { .ival = "cpuio",
-                           .help = "CPU cycler burner engine",
+                           .help = "CPU cycle burner engine",
                          },
 #ifdef FIO_HAVE_GUASI
                          { .ival = "guasi",
                            .help = "GUASI IO engine",
                          },
+#endif
+#ifdef FIO_HAVE_BINJECT
+                         { .ival = "binject",
+                           .help = "binject direct inject block engine",
+                         },
 #endif
                          { .ival = "external",
                            .help = "Load external engine (append name)",
@@ -973,7 +998,7 @@ static struct fio_option options[FIO_MAX_OPTS] = {
                .name   = "iodepth",
                .type   = FIO_OPT_INT,
                .off1   = td_var_offset(iodepth),
-               .help   = "Amount of IO buffers to keep in flight",
+               .help   = "Number of IO buffers to keep in flight",
                .minval = 1,
                .def    = "1",
        },
@@ -1106,6 +1131,7 @@ static struct fio_option options[FIO_MAX_OPTS] = {
        },
        {
                .name   = "nrfiles",
+               .alias  = "nr_files",
                .type   = FIO_OPT_INT,
                .off1   = td_var_offset(nr_files),
                .help   = "Split job workload between this number of files",
@@ -1170,6 +1196,13 @@ static struct fio_option options[FIO_MAX_OPTS] = {
                .help   = "Issue fdatasync for writes every given number of blocks",
                .def    = "0",
        },
+       {
+               .name   = "write_barrier",
+               .type   = FIO_OPT_INT,
+               .off1   = td_var_offset(barrier_blocks),
+               .help   = "Make every Nth write a barrier write",
+               .def    = "0",
+       },
 #ifdef FIO_HAVE_SYNC_FILE_RANGE
        {
                .name   = "sync_file_range",
@@ -1438,6 +1471,14 @@ static struct fio_option options[FIO_MAX_OPTS] = {
                .help   = "Exit on a single verify failure, don't continue",
                .parent = "verify",
        },
+       {
+               .name   = "verify_dump",
+               .type   = FIO_OPT_BOOL,
+               .off1   = td_var_offset(verify_dump),
+               .def    = "1",
+               .help   = "Dump contents of good and bad blocks on failure",
+               .parent = "verify",
+       },
        {
                .name   = "verify_async",
                .type   = FIO_OPT_INT,
@@ -1458,7 +1499,7 @@ static struct fio_option options[FIO_MAX_OPTS] = {
                .type   = FIO_OPT_INT,
                .off1   = td_var_offset(verify_batch),
                .help   = "Verify this number of IO blocks",
-               .parent = "verify_backlog",
+               .parent = "verify",
        },
 #ifdef FIO_HAVE_CPU_AFFINITY
        {
@@ -1468,6 +1509,39 @@ static struct fio_option options[FIO_MAX_OPTS] = {
                .help   = "Set CPUs allowed for async verify threads",
                .parent = "verify_async",
        },
+#endif
+#ifdef FIO_HAVE_TRIM
+       {
+               .name   = "trim_percentage",
+               .type   = FIO_OPT_INT,
+               .cb     = str_verify_trim_cb,
+               .maxval = 100,
+               .help   = "Number of verify blocks to discard/trim",
+               .parent = "verify",
+               .def    = "0",
+       },
+       {
+               .name   = "trim_verify_zero",
+               .type   = FIO_OPT_INT,
+               .help   = "Verify that trim/discarded blocks are returned as zeroes",
+               .off1   = td_var_offset(trim_zero),
+               .parent = "trim_percentage",
+               .def    = "1",
+       },
+       {
+               .name   = "trim_backlog",
+               .type   = FIO_OPT_STR_VAL,
+               .off1   = td_var_offset(trim_backlog),
+               .help   = "Trim after this number of blocks are written",
+               .parent = "trim_percentage",
+       },
+       {
+               .name   = "trim_backlog_batch",
+               .type   = FIO_OPT_INT,
+               .off1   = td_var_offset(trim_batch),
+               .help   = "Trim this number of IO blocks",
+               .parent = "trim_percentage",
+       },
 #endif
        {
                .name   = "write_iolog",
@@ -1486,8 +1560,16 @@ static struct fio_option options[FIO_MAX_OPTS] = {
                .type   = FIO_OPT_INT,
                .off1   = td_var_offset(no_stall),
                .def    = "0",
+               .parent = "read_iolog",
                .help   = "Playback IO pattern file as fast as possible without stalls",
        },
+       {
+               .name   = "replay_redirect",
+               .type   = FIO_OPT_STR_STORE,
+               .off1   = td_var_offset(replay_redirect),
+               .parent = "read_iolog",
+               .help   = "Replay all I/O onto this device, regardless of trace device",
+       },
        {
                .name   = "exec_prerun",
                .type   = FIO_OPT_STR_STORE,
@@ -1626,7 +1708,7 @@ static struct fio_option options[FIO_MAX_OPTS] = {
                .type   = FIO_OPT_INT,
                .off1   = td_var_offset(rate_iops_min[0]),
                .off2   = td_var_offset(rate_iops_min[1]),
-               .help   = "Job must meet this rate or it will be shutdown",
+               .help   = "Job must meet this rate or it will be shut down",
                .parent = "rate_iops",
        },
        {
@@ -1671,7 +1753,7 @@ static struct fio_option options[FIO_MAX_OPTS] = {
                .name   = "create_fsync",
                .type   = FIO_OPT_BOOL,
                .off1   = td_var_offset(create_fsync),
-               .help   = "Fsync file after creation",
+               .help   = "fsync file after creation",
                .def    = "1",
        },
        {
@@ -1685,7 +1767,7 @@ static struct fio_option options[FIO_MAX_OPTS] = {
                .name   = "pre_read",
                .type   = FIO_OPT_BOOL,
                .off1   = td_var_offset(pre_read),
-               .help   = "Preread files before starting official testing",
+               .help   = "Pre-read files before starting official testing",
                .def    = "0",
        },
        {
@@ -1836,7 +1918,7 @@ static struct fio_option options[FIO_MAX_OPTS] = {
                .name   = "disable_slat",
                .type   = FIO_OPT_BOOL,
                .off1   = td_var_offset(disable_slat),
-               .help   = "Disable submissionn latency numbers",
+               .help   = "Disable submission latency numbers",
                .parent = "gtod_reduce",
                .def    = "0",
        },
@@ -1852,14 +1934,14 @@ static struct fio_option options[FIO_MAX_OPTS] = {
                .name   = "gtod_cpu",
                .type   = FIO_OPT_INT,
                .cb     = str_gtod_cpu_cb,
-               .help   = "Setup dedicated gettimeofday() thread on this CPU",
+               .help   = "Set up dedicated gettimeofday() thread on this CPU",
                .verify = gtod_cpu_verify,
        },
        {
                .name   = "continue_on_error",
                .type   = FIO_OPT_BOOL,
                .off1   = td_var_offset(continue_on_error),
-               .help   = "Continue on non-fatal errors during I/O",
+               .help   = "Continue on non-fatal errors during IO",
                .def    = "0",
        },
        {
fio - Flexible IO Tester