Messages in this thread | | | Subject | Re: [PATCH 4/4] KVM: x86: track actual TSC frequency from the timekeeper struct | From | Paolo Bonzini <> | Date | Fri, 19 Feb 2016 16:53:42 +0100 |
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On 19/02/2016 15:12, Marcelo Tosatti wrote: > >> > I need to check how often the timekeeper updates the parameters. > I'd assume once every tick, the function is called (the notifier). > > But you can optimize that away by only updating the TSC frequency > when mult/shift are updated, which should be much rarer.
Yes, exactly. That would still not be rate limiting.
But worst case it can be a lot of adjustments, up to HZ per second...
Paolo
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