On Mon, Dec 02, 2013 at 02:48:02PM +0800, Gao feng wrote:
Add the manual for the new blkiotune options, --device-read-iops, --device-write-iops, --device-read-bps, --device-write-bps.
Singed-off-by: Guan Qiang <hzguanqiang@corp.netease.com> Singed-off-by: Gao feng <gaofeng@cn.fujitsu.com> --- tools/virsh.pod | 36 ++++++++++++++++++++++++++++++++++-- 1 file changed, 34 insertions(+), 2 deletions(-)
diff --git a/tools/virsh.pod b/tools/virsh.pod index dac9a08..8ecc27c 100644 --- a/tools/virsh.pod +++ b/tools/virsh.pod @@ -1625,8 +1625,12 @@ The guaranteed minimum memory allocation for the guest. Specifying -1 as a value for these limits is interpreted as unlimited.
=item B<blkiotune> I<domain> [I<--weight> B<weight>] -[I<--device-weights> B<device-weights>] [[I<--config>] -[I<--live>] | [I<--current>]] +[I<--device-weights> B<device-weights>] +[I<--device-read-iops> B<device-read-iops>] +[I<--device-write-iops> B<device-write-iops>] +[I<--device-read-bps> B<device-read-bps>] +[I<--device-write-bps> B<device-write-bps>] +[[I<--config>] [I<--live>] | [I<--current>]]
Display or set the blkio parameters. QEMU/KVM supports I<--weight>. I<--weight> is in range [100, 1000]. After kernel 2.6.39, the value @@ -1639,6 +1643,34 @@ or the value 0 to remove that device from per-device listings. Only the devices listed in the string are modified; any existing per-device weights for other devices remain unchanged.
+B<device-read-iops> is a single string listing one or more device/read_iops +pairs, int the format of /path/to/device,read_iops,/path/to/device,read_iops. +Each read_iops is a number which type is unsigned int, value 0 to remove that +device from per-decice listing. +Only the devices listed in the string are modified; +any existing per-device read_iops for other devices remain unchange. + +B<device-write-iops> is a single string listing one or more device/write_iops +pairs, int the format of /path/to/device,write_iops,/path/to/device,write_iops. +Each write_iops is a number which type is unsigned int, value 0 to remove that +device from per-decice listing. +Only the devices listed in the string are modified; +any existing per-device write_iops for other devices remain unchange. + +B<device-read-bps> is a single string listing one or more device/read_bps +pairs, int the format of /path/to/device,read_bps,/path/to/device,read_bps. +Each read_bps is a number which type is unsigned long long, value 0 to remove +that device from per-decice listing. +Only the devices listed in the string are modified; +any existing per-device read_bps for other devices remain unchange. + +B<device-write-bps> is a single string listing one or more device/write_bps +pairs, int the format of /path/to/device,write_bps,/path/to/device,write_bps. +Each write_bps is a number which type is unsigned long long, value 0 to remove +that device from per-decice listing. +Only the devices listed in the string are modified; +any existing per-device write_bps for other devices remain unchange. + If I<--live> is specified, affect a running guest. If I<--config> is specified, affect the next boot of a persistent guest. If I<--current> is specified, affect the current guest state.
The changes to virsh.c should be in this same patch. Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :|