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Re:Measuring Latency in Linux (2014) by jstarks on Thursday February 27, 2020 @08:36PM (#22439813)
Maybe this is true for AWS VMs that use Xen. I believe that Linux VMs on Azure do not have this problem, since they use the Hyper-V reference time page, which can be queried from the vDSO.
Re:Measuring Latency in Linux (2014) by robbjuly on Friday February 28, 2020 @01:12AM (#22440864)
I believe newer generation AWS VMs, like C5, use kvm clock source now and not xen. On the older ones switching to tsc speeds up things.