Messages in this thread | | | Date | Wed, 02 Jun 2010 00:39:56 -0700 | From | "H. Peter Anvin" <> | Subject | Re: [PATCH] use unfair spinlock when running on hypervisor. |
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On 06/01/2010 10:39 AM, Valdis.Kletnieks@vt.edu wrote: > On Tue, 01 Jun 2010 19:52:28 +0300, Avi Kivity said: >> On 06/01/2010 07:38 PM, Andi Kleen wrote: >>>>> Your new code would starve again, right? >>> Try it on a NUMA system with unfair memory. > >> We are running everything on NUMA (since all modern machines are now >> NUMA). At what scale do the issues become observable? > > My 6-month-old laptop is NUMA? Comes as a surprise to me, and to the > perfectly-running NUMA=n kernel I'm running. > > Or did you mean a less broad phrase than "all modern machines"? >
All modern multisocket machines, unless configured in interleaved memory mode.
-hpa
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