Re: [Xen-devel] Re: [Xen-users] About profiling xen

[Marco Tizzoni <marco.tizzoni@xxxxxxxxx>]

On Wed, Sep 30, 2009 at 4:21 PM, Dan Magenheimer
<dan.magenheimer@xxxxxxxxxx> wrote:

> Because of save/restore and migrate, no hardware timer is
> suitable for a pv domain.  The code that is handling the
> clock is the paravirtualized clock code (aka pvclock).
> Nobody ever changed the sysfs reporting mechanism in
> pv versions of released Red Hat kernels, so clocksource
> gets reported as "jiffies", and even though "pit"
> appears to be available, it is not (since it wouldn't
> work).  I suspect this is also the case for other
> distros' pv kernels.

How can I get a different, and I hope better, clocksource? In time.c I
found acpi and hpet are available.

m-

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