Thank you Paolo for this information. I believe setting the default clocksource to HPET would be a more deterministic option in my case. On Sat, Sep 26, 2020 at 1:49 AM Paolo Bonzini <pbonzini@xxxxxxxxxx> wrote: > > On 25/09/20 04:36, Arnabjyoti Kalita wrote: > > > > Does KVM change the clocksource in any way? I expect the clocksource > > to be set at boot time, > > how and why did the clocksource change later? Does KVM not support the > > tsc clocksource ? > > The TSC clocksource might fail, in which case Linux will fallback to > HPET. Using kvmclock (which you have disabled) avoids the fallback. > > Paolo >
