Re: [Xen-devel] VT is comically slow

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 3 Jul 2006, at 09:28, Rik van Riel wrote:

> VT by itself seems fine, but once a VT domain is running a workload 
> that
> is network intensive combined with a disk/cpu intensive workload, 
> things
> get incredibly slow.
>
> Operations that take less than a second with either workload running
> alone can now take many seconds, sometimes the better part of a minute!
You might want to try removing the call to pmtimer_init() in 
ioemu/hw/piix4acpi.c -- the pmtimer emulation is rather broken (burns 
25% of a 3GHz cpu). I've just done this in xen-unstable.
 -- Keir


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