Re: [PATCH 0/9] Add throttle blkio cgroup support for libvirt

["hzguanqiang@xxxxxxxxxxxxxxxx" <hzguanqiang@xxxxxxxxxxxxxxxx>]



I've tested the patchset successful with virsh command for both kvm and lxc vm.

Details are as following:

--------------------------------------KVM-------------------------

root@debian:~/images# virsh version

Compiled against library: libvirt 1.2.0

Using library: libvirt 1.2.0

Using API: QEMU 1.2.0

Running hypervisor: QEMU 1.7.0

 

root@debian:~/images# virsh blkiotune kvm

weight         : 500

device_weight  :

device_read_iops:

device_write_iops:

device_read_bps:

device_write_bps:

 

root@debian:~/images# virsh blkiotune kvm --device-weights /dev/vda,250 --device-read-iops /dev/vda,1234567 --device-write-iops /dev/vda,2345678 --device-read-bps /dev/vda,123456789 --device-write-bps /dev/vda,234567890  --config --live                    

 

root@debian:~/images# virsh blkiotune kvm

weight         : 500

device_weight  : /dev/vda,250

device_read_iops: /dev/vda,1234567

device_write_iops: /dev/vda,2345678

device_read_bps: /dev/vda,123456789

device_write_bps: /dev/vda,234567890

 

root@debian:~/images# cat /sys/fs/cgroup/blkio/machine/kvm.libvirt-qemu/blkio.weight_device

254:0 250          

root@debian:~/images# cat /sys/fs/cgroup/blkio/machine/kvm.libvirt-qemu/blkio.throttle.read_bps_device

254:0 123456789

root@debian:~/images# cat /sys/fs/cgroup/blkio/machine/kvm.libvirt-qemu/blkio.throttle.read_iops_device 

254:0 1234567

root@debian:~/images# cat /sys/fs/cgroup/blkio/machine/kvm.libvirt-qemu/blkio.throttle.write_bps_device     

254:0 234567890

root@debian:~/images# cat /sys/fs/cgroup/blkio/machine/kvm.libvirt-qemu/blkio.throttle.write_iops_device 

254:0 2345678

 

---------------------------- lxc ----------------------------------

root@debian:~/images# vir version

Compiled against library: libvirt 1.2.0

Using library: libvirt 1.2.0

Using API: LXC 1.2.0

Running hypervisor: LXC 3.10.11

 

root@debian:~/images# vir blkiotune lxc --device-weights /dev/vda,250 --device-read-iops /dev/vda,1234567 --device-write-iops /dev/vda,2345678 --device-read-bps /dev/vda,123456789 --device-write-bps /dev/vda,234567890  --config --live

 

root@debian:~/images# vir blkiotune lxc

weight         : 500

device_weight  : /dev/vda,250

device_read_iops: /dev/vda,1234567

device_write_iops: /dev/vda,2345678

device_read_bps: /dev/vda,123456789

device_write_bps: /dev/vda,234567890

 

root@debian:~/images# vir blkiotune lxc --device-weights /dev/vda,270 --device-read-iops /dev/vda,111111111 --device-write-iops /dev/vda,22222222 --device-read-bps /dev/vda,333336789 --device-write-bps /dev/vda,5555555  --config --live                                      

 

root@debian:~/images# vir blkiotune lxc

weight         : 500

device_weight  : /dev/vda,270

device_read_iops: /dev/vda,111111111

device_write_iops: /dev/vda,22222222

device_read_bps: /dev/vda,333336789

device_write_bps: /dev/vda,5555555

 

root@debian:~/images# cat /sys/fs/cgroup/blkio/machine/lxc.libvirt-lxc/blkio.weight_device

254:0 270

root@debian:~/images# cat /sys/fs/cgroup/blkio/machine/lxc.libvirt-lxc/blkio.throttle.read_iops_device

254:0 111111111

root@debian:~/images# cat /sys/fs/cgroup/blkio/machine/lxc.libvirt-lxc/blkio.throttle.write_iops_device    

254:0 22222222

root@debian:~/images# cat /sys/fs/cgroup/blkio/machine/lxc.libvirt-lxc/blkio.throttle.read_bps_device       

254:0 333336789

root@debian:~/images# cat /sys/fs/cgroup/blkio/machine/lxc.libvirt-lxc/blkio.throttle.write_bps_device  

254:0 5555555

 

On 2013-12-03 16:44 , Gao feng wrote:

On 12/03/2013 10:48 AM, hzguanqiang@xxxxxxxxxxxxxxxx wrote:

> On 2013-12-02 14:47 , Gao feng <mailto:gaofeng@xxxxxxxxxxxxxx> wrote:

>

>     Right now, libvirt only supports the cfq based blkio cgorup,

>     this means if the block devices doesn't use cfq scheduler, the

>     blkio cgroup will loss effect.

>     

>     This patchset adds the throttle blkio cgroup support for libvirt,

>     intoduces four elements for domain configuration and extend the

>     virsh command blkiotune.

>

> 

> intoduces/introduces/s

> 

 

 

Oh, my hand slip. Thanks!

 

BTW, chould you help to review or test this patchset?

It runs well in my test box.

 

Thanks.

 

------------------    
Best regards!
GuanQiang

12:46:48

--
libvir-list mailing list
libvir-list@xxxxxxxxxx
https://www.redhat.com/mailman/listinfo/libvir-list