Messages in this thread | | | Date | Wed, 9 Jul 2008 14:28:52 +0200 | From | Ingo Molnar <> | Subject | Re: [PATCH RFC 0/4] Paravirtual spinlocks |
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* Jeremy Fitzhardinge <jeremy@goop.org> wrote:
> My experiments show that using a Xen-specific lock helps guest > performance a bit (reduction in elapsed and system time in a kernbench > run), but most significantly, reduces overall physical CPU consumption > by 10%, and so increases overall system scalability.
that's rather impressive and looks nice, considering the fairly low impact.
as there were no fundamental objections in this thread i've created a tip/x86/paravirt-spinlocks topic branch for these patches and started testing them.
i based the topic branch on tip/xen-64bit, so you should be able to get the latest code by doing:
git-merge tip/x86/paravirt-spinlocks
on tip/master.
Ingo
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