Messages in this thread | | | From | "Ray Bryant" <> | Subject | Re: [discuss] Re: [PATCH] x86-64: Fix bad assumption that dualcore cpus have synced TSCs | Date | Wed, 21 Sep 2005 10:46:25 -0500 |
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On Wednesday 21 September 2005 10:04, Andi Kleen wrote:
> > We handle this, but single socket dual core was special cased because > I was told previously it should be ok. > > -Andi
AFAIK there is a processor state bit that enables/disables this behavior. Apparently some BIOS's are setting this one way for desktop systems and the other way for servers. If it is thought to be important I can track that down and see if it can be externally documented. (It may actually be in the bios and kernel developer guide...)
-- Ray Bryant AMD Performance Labs Austin, Tx 512-602-0038 (o) 512-507-7807 (c)
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