mirror of
https://gitlab.com/libvirt/libvirt.git
synced 2024-12-27 08:05:24 +00:00
6ac81c8ec8
This adds per-device weights to <blkiotune>. Note that the
cgroups implementation only supports weights per block device,
and not per-file within the device; hence this option must be
global to the domain definition rather than tied to individual
<devices>/<disk> entries:
<domain ...>
<blkiotune>
<device>
<path>/path/to/block</path>
<weight>1000</weight>
</device>
</blkiotune>
..
This patch also adds a parameter --device-weights to virsh command
blkiotune for setting/getting blkiotune.weight_device for any
hypervisor that supports it. All <device> entries under
<blkiotune> are concatenated into a single string attribute under
virDomain{Get,Set}BlkioParameters, named "device_weight".
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
37 lines
946 B
XML
37 lines
946 B
XML
<domain type='qemu'>
|
|
<name>QEMUGuest1</name>
|
|
<uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
|
|
<memory>219136</memory>
|
|
<currentMemory>219136</currentMemory>
|
|
<blkiotune>
|
|
<weight>800</weight>
|
|
<device>
|
|
<path>/dev/sda</path>
|
|
<weight>400</weight>
|
|
</device>
|
|
<device>
|
|
<path>/dev/sdb</path>
|
|
<weight>900</weight>
|
|
</device>
|
|
</blkiotune>
|
|
<vcpu>1</vcpu>
|
|
<os>
|
|
<type arch='i686' machine='pc'>hvm</type>
|
|
<boot dev='hd'/>
|
|
</os>
|
|
<clock offset='utc'/>
|
|
<on_poweroff>destroy</on_poweroff>
|
|
<on_reboot>restart</on_reboot>
|
|
<on_crash>destroy</on_crash>
|
|
<devices>
|
|
<emulator>/usr/bin/qemu</emulator>
|
|
<disk type='block' device='disk'>
|
|
<source dev='/dev/HostVG/QEMUGuest1'/>
|
|
<target dev='hda' bus='ide'/>
|
|
<address type='drive' controller='0' bus='0' unit='0'/>
|
|
</disk>
|
|
<controller type='ide' index='0'/>
|
|
<memballoon model='virtio'/>
|
|
</devices>
|
|
</domain>
|