[libvirt] RFC: APIs to manage KSM

[Daniel P. Berrange]

On Fri, Aug 31, 2012 at 07:54:31AM -0700, Eric Blake wrote:
> On 08/31/2012 07:46 AM, Daniel P. Berrange wrote:
> > On Fri, Aug 31, 2012 at 04:56:01PM +0800, Osier Yang wrote:
> >> Triggered by the requirement to control the new sys knob
> >> /sys/kernel/mm/ksm/merge_nodes for a NUMA aware host by
> >> patch:
> >>
> 
> > 
> > As a general point, we should not use the term 'KSM' in the API
> > names, since that is an implementation specific name. We want
> > some more generic name. eg
> > 
> >   virNodeSetMemorySharingParameters
> > 
> > likewise for all the enum/constant names.
> 
> For that matter, why can't we reuse the existing
> virDomainSetMemoryParameters() for the enum/constants?  That is, whether
> or not to use ksm is a memory parameter.

Actually this is a host level action. There is a separate non-upstreamed
patch which lets us control whether KSM is used per-guest, which is waiting
for a fix to QEMU


Daniel
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