[libvirt] Add persistent XML for cpu tunables

Osier Yang jyang at redhat.com
Tue Mar 8 13:08:00 UTC 2011


Could anyone help review this series, Dan and Eric? :-)

Thanks.

Regards
Osier
于 2011年02月27日 22:39, Osier Yang 写道:
> These are pretty rough patches, something like a draft, I beleive
> there must be many problems, please review it heavily, :-)
> 
> New XML:
>    <cputune>
>      <shares>2048</shares>
>      <vcpupin vcpu='0' cpuset='0-4,^1'/>
>      <vcpupin vcpu='1' cpuset='1,3'/>
>      <vcpupin vcpu='2' cpuset='0,2'/>
>    </cputune>
> 
> "shares" is to define the the proportional weighted cpu share
> for the domain.
> 
> "vcpupin" is to define the cpu affinities of vcpus, it will
> not be displayed if one doesn't specify it explicitly in
> XML or set the cpu affinites for vcpu via "vcpupin", means
> there will be no vcpupin element in domain XML by default,
> and the constraints are:
> 
>    - Error if one specify entries more than the count of maxvcpus.
>    - Error when one specify entries for same vcpu.
>    - Error if value of attribute "vcpu" is more than count of
>      "maxvcpus - 1".
> 
>    Attribute "cpuset" works same as "cpuset" of element "vcpu",
> reuse the codes for parsing and formating value of "cpuset"
> of element "vcpu".
> 
> NB, the idea to add persistent XML for "cpushares" is from
> "Nikunj A. Dadhania":
> https://www.redhat.com/archives/libvir-list/2011-January/msg01183.html
> 
> I rebased it and include it together in this patch series.
> 
> [PATCH 1/6] cputune: new tests for testing cputune xml
> [PATCH 2/6] cputune: support cputune for xend driver
> [PATCH 3/6] cputune: support cputune for qemu driver
> [PATCH 4/6] cputune: support cputune xml for LXC driver
> [PATCH 5/6] cputune: support cputune xml config
> [PATCH 6/6] cputune: Add docs xml schema for cputune xml
> 
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