Add check for pipe/fifo files

[fio.git] / README

diff --git a/README b/README
index 69803403ac83c2cd8f7c5d424317fa9e3ee3fba6..6b23d7c5e1b3c52c43c7bb076348c1800e28f592 100644 (file)
--- a/README
+++ b/README
@@ -65,6 +65,7 @@ $ fio
         --version       Print version info and exit
        --help          Print this page
        --cmdhelp=cmd   Print command help, "all" for all of them
+       --showcmd       Turn a job file into command line options
 
 Any parameters following the options will be assumed to be job files,
 unless they match a job file parameter. You can add as many as you want,
@@ -106,11 +107,11 @@ The job file parameters are:
                        posixaio for POSIX aio, sync for regular read/write io,
                        mmap for mmap'ed io, syslet-rw for syslet driven
                        read/write, splice for using splice/vmsplice,
-                       sgio for direct SG_IO io, or net for network io. sgio
-                       only works on Linux on SCSI (or SCSI-like devices,
-                       such as usb-storage or sata/libata driven) devices.
-                       Fio also has a null io engine, which is mainly used
-                       for testing fio itself.
+                       sgio for direct SG_IO io, net for network io, or cpuio
+                       for a cycler burner load. sgio only works on Linux on
+                       SCSI (or SCSI-like devices, such as usb-storage or
+                       sata/libata driven) devices. Fio also has a null io
+                       engine, which is mainly used for testing fio itself.
        iodepth=x       For async io, allow 'x' ios in flight
        overwrite=x     If 'x', layout a write file first.
        nrfiles=x       Spread io load over 'x' number of files per job,
@@ -176,7 +177,7 @@ The job file parameters are:
        ioscheduler=x   Use ioscheduler 'x' for this job.
        cpuload=x       For a CPU io thread, percentage of CPU time to attempt
                        to burn.
-       cpuchunks=x     Split burn cycles into pieces of x.
+       cpuchunks=x     Split burn cycles into pieces of x usecs.
 
 
 Author