Re: clock drift under Hyper-V

[Jan van Eldik]

Hi,

I'm running a couple of CentOS 5.6 instances under Hyper-V. Horrible
clock drift
issues, but otherwise okay.

You may want to add:

divider=10 clocksource=acpi_pm

to kernel arguments in /etc/grub.conf

to correct the clock drift problem.

Doesn't help me.

Just to add that we different parameters on 32bit and 64bit SLC5 systems.
From https://cern.service-now.com/kb_view.do?sysparm_article=KB0000278

    * SLC5/x86_64: "divider=10 clock=pmtmr"
    * SLC5/i386: "divider=10 clocksource=acpi_pm"
    * SLC4/x86_64: "divider=10 notsc"
    * SLC4/i386: "divider=10 notsc"

These parameters seem to work fine on 500+ VMs

                cheers, Jan