‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐ On Tuesday, March 3, 2020 5:58 PM, Ian Gregory <ian+obs...@ians-net.co.uk> wrote:
> I've had similar issues with timekeeping within guests of VMM, > although there are improvements in -current with the pvclock time > source. Since the fix below I now see occasional instances of the > clock stepping by a few whole seconds (typically less than 8s) but > it's much less frequent and the magnitude is within the bounds of what > ntpd can correct. > > See > http://openbsd-archive.7691.n7.nabble.com/pvclock-stability-tp376946p377922.html > for some backstory > > (aside: I see similar small occasional clock jumps of an integer > number of seconds on OpenBSD-6.6 guests using tsc running on a VMware > ESXi host) Thank you Ian for your answer. Unfortunately I don't understand too much of that post you linked. But if I understand you correctly you are suggesting that I should change on my VM: kern.timecounter.hardware=pvclock and the drift or jumps should be better than with "tsc" ?