Issues with clock skew on GCE

[Colin Percival]

On 03/25/17 14:20, Prakhar Goel wrote:
> Has anybody noticed clock skew on g1-small instances? I have two and
> both show substantial clock skew (as much as several days after only a
> few days running). The n1 etc... instances I have seem to be fine so
> perhaps this is limited to the shared cpu instances only?

I'm an EC2 guy rather than a GCE guy, but I'd suggest looking at the
kern.timecounter sysctl.  Clock skew on virtual systems is something
easily seen as a result of TSC fiddling.

-- 
Colin Percival
Security Officer Emeritus, FreeBSD | The power to serve
Founder, Tarsnap | www.tarsnap.com | Online backups for the truly paranoid