| Date | Wed, 16 Jun 2010 10:24:37 -0300 | From | Glauber Costa <> | Subject | Re: [PATCH 04/17] Fix deep C-state TSC desynchronization |
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On Mon, Jun 14, 2010 at 09:34:06PM -1000, Zachary Amsden wrote: > When CPUs with unstable TSCs enter deep C-state, TSC may stop > running. This causes us to require resynchronization. Since > we can't tell when this may potentially happen, we assume the > worst by forcing re-compensation for it at every point the VCPU > task is descheduled. can't we just compensate everytime check_tsc_unstable() is true?
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