On Thu, Jul 21, 2011 at 12:43 AM, Stefan G. Weichinger <li...@xunil.at>wrote:
> > Maybe a bit OT, but otherwise close to gentoo as well (as we all > configure our kernels individually ....) (see ps below): > > When I configure my gentoo-server for Linux KVM, how to get the > clock-issues right, in terms of correctness and performance? > > I assume that I am not the only one scratching his head ... but maybe > some of us simply hesitate to ask ;-) > > HPET, RTC, TSC, blah ... > > A new server with a Xeon-CPU tells me: > > "kvm: SMP vm created on host with unstable TSC; guest TSC will not be > reliable" > > Ah, ok. > > Is that bad? Could I do something? Should I? > > My question is // questions are: > > Are there any recommended kernel-config-settings for a performant and > non-drifting KVM-server? > > Is there a "best practise"? > > What is your experience, your recommendation? > > Maybe it should find its way into the gentoo wiki :-) > > Thanks in advance, Stefan > > ps: yeah, I know, this should go to the linux-kvm-ml in an ideal world. > We all know that we would end up subscribed to dozens of mailing-lists > just to get our jobs done .... so pls be tolerant in terms of "what is > off-topic". thx. > > This question is totally related to Gentoo! Try -cpu ? and run with different cpu's to see if this can solve the problem. Kfir
