Re: [Xen-users] Perfomance decrease after upgrade

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Thu, May 20, 2010 at 08:59:04AM -0700, Fantu wrote:
> 
> Today i have upgrade one production server from:
> Hardy 64 bit kernel 2.6.24-xen of ubuntu, xen 3.3 from backports
> To:
> Lenny 64 bit kernel 2.6.32 pv_ops from backports, xen 3.4.3 from hg testing
> 
> 13 domU windows xp
> Before update:
> gplpv 0.9.12pre9 - disk tap:aio
> After update:
> gplpv 0.11.0.213 debug - disk file (i not found working solution for blktap
> problem :( )
> 
> Before update on start of system and all domU 20 min for all loading and
> high load of server but after ok
> After update on start of system and all domU after 40 min already very high
> load and not all domU full load
> 
> On update i have also change dom0 memory to 768 mb and disable dom0 memory
> balloning
> 
> If need more info i do
> Someone can give me some advice to improve please?
>

Try running the old dom0 kernel (2.6.24-xen) with the new hypervisor, does that 
help/fix it?

If it does, try the Novell forward-ported Xenlinux patches for 2.6.32 instead 
of pvops dom0 kernel.

And let us know how it goes!

-- Pasi


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