[Bug 256781] EC2 Nitro: TSC-low timecounter lags

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From: <bugzilla-noreply_at_freebsd.org>
Date: Wed, 30 Jun 2021 17:38:56 UTC

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=256781

Roger Pau Monné <royger@freebsd.org> changed:

           What    |Removed                     |Added
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                 CC|                            |royger@freebsd.org

--- Comment #19 from Roger Pau Monné <royger@freebsd.org> ---
Can you try to set kern.timecounter.smp_tsc_adjust=1 when using TSC-low and see
if that makes a difference?

So this system reports invariant TSC, but the TSCs are not synchronized across
CPUs?

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