Re: [Xen-devel] [PATCH 0/2] xen: credit2: fix vcpu starvation due to too few credits

[Dario Faggioli <dfaggioli@xxxxxxxx>]

On Thu, 2020-03-12 at 18:59 +0100, Roger Pau Monné wrote:
> On Thu, Mar 12, 2020 at 06:02:03PM +0100, Dario Faggioli wrote:
> > What do you mean with "Which timer does this hardware use" ?
> 
> Xen uses a hardware timer (HPET, PMTIMER or PIT IIRC) in order to get
> interrupts at specified times, on my box I see for example:
> 
> (XEN) Platform timer is 23.999MHz HPET
> 
> You should also see something along those lines. 
>
Right. If booted Xen, I see this, which looks fine to me (this is
currently Xen 4.12.2):

# xl dmesg |grep time
(XEN) [00018d6c323bf350] Platform timer is 14.318MHz HPET  <===========
(XEN) [   22.097647] TSC deadline timer enabled
(XEN) [   23.068865] mwait-idle: lapic_timer_reliable_states 0xffffffff
(XEN) [   27.316536] mcheck_poll: Machine check polling timer started.

Regards
-- 
Dario Faggioli, Ph.D
http://about.me/dario.faggioli
Virtualization Software Engineer
SUSE Labs, SUSE https://www.suse.com/
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