From: Christoph Egger <Christoph.Egger@amd.com>
To: Tim Deegan <Tim.Deegan@citrix.com>
Cc: "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>
Subject: Re: [PATCH 04/18] Nested Virtualization: p2m cleanup
Date: Fri, 23 Apr 2010 17:41:22 +0200 [thread overview]
Message-ID: <201004231741.23174.Christoph.Egger@amd.com> (raw)
In-Reply-To: <20100420092918.GM31304@whitby.uk.xensource.com>
On Tuesday 20 April 2010 11:29:18 Tim Deegan wrote:
> At 10:20 +0100 on 20 Apr (1271758826), Christoph Egger wrote:
> > On Tuesday 20 April 2010 11:12:32 Tim Deegan wrote:
> > > At 08:41 +0100 on 20 Apr (1271752877), Christoph Egger wrote:
> > > > On Friday 16 April 2010 12:45:35 Tim Deegan wrote:
> > > > > Nacked pending performance eval.
> > > > >
> > > > > BTW, if perf turns out not be a problem, I welcome this with open
> > > > > arms; always nice to see a patch that removes a lot of code.
> > > >
> > > > kernbench performance numbers on 64bit xen:
> > >
> > > Looking good. :)
> >
> > Yes.
> >
> > > What was the guest?
> >
> > SLES10SP3
>
> 64bit, HVM?
>
> > > And what about 32bit Xen?
> >
> > I provide the numbers when I have them.
The kernbench performance number on 32bit xen:
w/o patch:
Average Half load -j 3 Run (std deviation):
Elapsed Time 499.244 (1.22218)
User Time 618.294 (0.839184)
System Time 932.474 (2.1815)
Percent CPU 310 (0)
Context Switches 71327.2 (624.386)
Sleeps 42207.4 (236.626)
Average Optimal load -j 16 Run (std deviation):
Elapsed Time 438.332 (1.02721)
User Time 636.393 (19.0873)
System Time 963.355 (32.6052)
Percent CPU 342.8 (34.5761)
Context Switches 200392 (136051)
Sleeps 47424.1 (5501.64)
with patch:
Average Half load -j 3 Run (std deviation):
Elapsed Time 1047.51 (3.25506)
User Time 895.362 (1.32624)
System Time 2488.95 (10.9768)
Percent CPU 322.6 (0.547723)
Context Switches 91687.2 (970.45)
Sleeps 42411.2 (199.601)
Average Optimal load -j 16 Run (std deviation):
Elapsed Time 1008.92 (2.60045)
User Time 939.244 (46.2882)
System Time 2688.56 (210.631)
Percent CPU 352.9 (31.9424)
Context Switches 306264 (226339)
Sleeps 47920.2 (5814.98)
The guest was SLES10SP3 32bit.
Christoph
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prev parent reply other threads:[~2010-04-23 15:41 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-15 12:29 [PATCH 04/18] Nested Virtualization: p2m cleanup Christoph Egger
2010-04-16 10:45 ` Tim Deegan
2010-04-20 7:41 ` Christoph Egger
2010-04-20 9:12 ` Tim Deegan
2010-04-20 9:20 ` Christoph Egger
2010-04-20 9:29 ` Tim Deegan
2010-04-20 9:35 ` Christoph Egger
2010-04-23 15:41 ` Christoph Egger [this message]
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