On Mon, Nov 06, 2023 at 05:23:44PM +0530, Nikunj A. Dadhania wrote: > > Maybe kvmclock rating has to be even lower after detecting sane TSC? > > If I set kvmclock rating to 298, I do see exact behavior as you have seen on the bare-metal. > > [ 0.004520] clocksource: clocksource_enqueue: name kvm-clock rating 298 > [...] > [ 1.827422] clocksource: clocksource_enqueue: name tsc-early rating 299 > [...] > [ 3.485059] clocksource: Switched to clocksource tsc-early > [...] > [ 3.623625] clocksource: clocksource_enqueue: name tsc rating 300 > [ 3.628954] clocksource: Switched to clocksource tsc This looks more reasonable to me. But I don't really understand timekeeping. It would be nice to hear from someone who knows what he saying. -- Kiryl Shutsemau / Kirill A. Shutemov