Service linked to hostgroup / notifications

[Lee Azzarello]

On Fri, Feb 27, 2009 at 3:20 PM, Neu, Timothy <TNeu at sjm.com> wrote:
> As I understand it, running NTP on a VM is a complete waste of
> resources, as there is no real per-VM clock to keep in sync. (i.e.,
> you're updating ether)  VMWare "fakes" a clock whenever a process tries
> to access one.
>
> I know there are some kernel boot parameters that can be added to
> improve time accuracy inside a VM.  Not sure if I found them on Redhat's
> site or VMWare's...   That and VMWare tools time synchronization is the
> best I've been able to come up with.

I'm running 40 hosts in Amazon EC2. They are Xen virtual machines and
all of their clocks are synced via NTP. I have never had a problem
with time shift nor CPU performance.

-lee

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