Re: [Xen-devel] Xenoprof on Xen-4.1.2

[Malcolm Crossley <malcolm.crossley@xxxxxxxxxx>]

On 29/05/12 16:29, Konrad Rzeszutek Wilk wrote:
> On Tue, May 29, 2012 at 01:38:37PM +0800, suixiufeng wrote:
> > Hi:
> >     I want to use xenoprof (patched oprofile-0.9.5) to profile VM (both HVM
> > and PV) apps and kernel performance based on passive domains. My platform
> > is as follows:
> >     CPU:Intel(R) Xeon(R) CPU           E5620  @ 2.40GHz
> >     Hypervosir: Xen 4.1.2
> >     Dom0 kernel: linux 2.6.38.2
> >     I am not sure whether xenoprof can work on this platform.
> > *   As soon as I start xenoprof in passive domain mode, the VM can't run
> > workload immediately (The VM doesn't crash. If I ping the VM from other
> > machine, the response time is really high ). I can't input any commands
> > through the console prompt. *
> Do you have the patches applied to the kernel to use oprofile?
The Xeon E5620 processor has model number 0x2c (Westmere class), neither 
the Xen or the latest upstream Linux kernel have oprofile support for 
this processor.
http://lxr.linux.no/linux+*/arch/x86/oprofile/nmi_int.c#L642
http://xenbits.xen.org/hg/xen-unstable.hg/file/52ffce7a036e/xen/arch/x86/oprofile/nmi_int.c#l344


> > _______________________________________________
> > Xen-devel mailing list
> > Xen-devel@xxxxxxxxxxxxx
> > http://lists.xen.org/xen-devel
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxx
> http://lists.xen.org/xen-devel
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel