Turn the CPU burner into a real io engine
This removes the special casing in fio.c for the cpu engine, and
also gets rid of FIO_CPUIO.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/README b/README
index 6980340..8b55f31 100644
--- a/README
+++ b/README
@@ -106,11 +106,11 @@
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 +176,7 @@
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