On 08/26/2013 10:10 PM, hzguanqiang corp netease com wrote:
> Hello experts,
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> It seems that blkiotune of kvm domain is set through qemu now,
and We found there are some throttle shaking problem when using this
> As you can do the same thing through blkio cgroup, and this
sounds to show better performance, Can we realize domainSetBlockIoTune
by cgroup just like interface domainSetBlkioParameters ? Or Add a new
interface to support setting disk IOtune by blkio cgroup?
Current libvirt already lets you choose between cgroup blkio vs.
<blkiotune> (implemented via cgroups, on a
mapped through the virDomainSetBlkioParameters API, or via 'virsh
under <disk> (implemented via qemu, on a per-guest-disk
through the virDomainSetBlockIoTune API, or via 'virsh
(and yes, we're lousy at using consistently named API)
Eric Blake eblake redhat com