[libvirt] [numatune PATCH v2] Support NUMA tuning

[Osier Yang]

于 2011年05月12日 18:45, Daniel P. Berrange 写道:
> On Thu, May 12, 2011 at 06:22:49PM +0800, Osier Yang wrote:
>> Hi, All
>>
>> This series adopts Daniel's suggestion on v1, using libnuma but
>> not invoking numactl to set the NUMA policy. Add support for
>> "interleave" and "preferred" modes, except the "strict" mode
>> supported in v1.
>>
>> The new XML is like:
>>
>> <numatune>
>>    <memory model="interleave" nodeset="+0-4,8-12"/>
>> <numatune>
>>
>> I persist in using the numactl nodeset syntax to represent
>> the "nodeset", as I think the purpose of adding NUMA tuning
>> support is to provide the use for NUMA users, keeping the
>> syntax same as numactl will make them feel better.
>
> Compatibility with numactl syntax is an explicit non-goal.
> numactl is just one platform specific impl.  Compatibility
> with numactl syntax is of no interest to the ESX or VirtualBox
> drivers. The libvirt NUMA syntax should be using other
> existing libvirt XML as the design compatibility target.

Hi, Dan

The syntax is actually not of numactl, but of libnuma, it
provides API numa_parse_nodestring() to parse the syntax,
I'm not sure how ESX/VirtualBox will support numa tuning,
if they will use libnuma, IMHO there is no problem here.

Regards
Osier