On Tue, 26 Jun 2012 10:25:22 +0100 "Daniel P. Berrange" <berra...@redhat.com> wrote:
> On Mon, Jun 25, 2012 at 05:05:45PM -0500, Anthony Liguori wrote: > > On 06/25/2012 11:55 AM, Luiz Capitulino wrote: > > >Allow to enable/disable memory merging during run-time. > > > > > >This is implemented by extending the qemu_set_mem_merge() function. > > > > > >To test on HMP: > > > > > > (qemu) set_memory_merge on > > > (qemu) set_memory_merge off > > > > > >Signed-off-by: Luiz Capitulino<lcapitul...@redhat.com> > > > > Is there a requirement to tweak KSM dynamically on a per-VM basis or > > was this just a nice to have? > > > > I can certainly understand wanting to run your VMs without KSM but > > not wanting to have to muck with global configuration values. > > > > I would suspect that people would either overcommit or not > > overcommit as a global decision. Once you overcommit even one > > machine, you potentially put your whole system in danger of swap. > > I tend to agree, this monitor commands feels like a feature without a > clear usecase. Well, the request for it came from libvirt and I implemented it without wondering much about it. But if you think it's not worth it, I'll just drop it.
