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

[Marco Tizzoni <marco.tizzoni@xxxxxxxxx>]

On Thu, Oct 1, 2009 at 1:23 AM, Jeremy Fitzhardinge <jeremy@xxxxxxxx> wrote:
> Your clocksource is "xen", which is the best possible for a PV xen guest.
>
> However, a clocksource is for measuring elapsed time, not triggering
> timers.

Why? How would you solve the problem of raising events at a fixed rate?

> Unfortunately there doesn't seem to be a /sys file to show the
> current clockevent source in use, but if you have "xen" clocksource it's
> almost certainly the xen clockevent.
>
> However, this is only relevent if you have CONFIG_NO_HZ and
> CONFIG_HIGHRES_TIMERS enabled.

I've tried both set/unset but nothing change.

m-

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