Messages in this thread | | | Date | Wed, 26 Jun 2019 21:21:00 +0200 | From | Peter Zijlstra <> | Subject | Re: cputime takes cstate into consideration |
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On Wed, Jun 26, 2019 at 06:55:36PM +0000, Raslan, KarimAllah wrote:
> If the host is completely in no_full_hz mode and the pCPU is dedicated to a > single vCPU/task (and the guest is 100% CPU bound and never exits), you would > still be ticking in the host once every second for housekeeping, right? Would > not updating the mwait-time once a second be enough here?
People are trying very hard to get rid of that remnant tick. Lets not add dependencies to it.
IMO this is a really stupid issue, 100% time is correct if the guest does idle in pinned vcpu mode.
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