Re: Performance numbers on PV-on-HVM

[Jagadish Nadimpalli <jagadish.nadimpalli@oneconvergence.com>]

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Hi Stefano,

Thanks a lot for your responses.

Thanks & Regards,
Jagadish

On Mon, Sep 27, 2010 at 6:41 PM, Stefano Stabellini <
stefano.stabellini@eu.citrix.com> wrote:

> On Mon, 27 Sep 2010, Jagadish Nadimpalli wrote:
> > Did anybody calculate benchmark network performance numbers for PV-on-HVM
> so that I can compare? The link provided by you
> > has some numbers as follows. This don't has the data rate that is
> transferred via a network interface.
> >
> > Average Optimal load -j 4 Run (std deviation):
> > Elapsed Time 215.307 (10.1294)
> > User Time 632.503 (6.4785)
> > System Time 115.497 (4.53905)
> > Percent CPU 347.333 (15.885)
> > Context Switches 43319.7 (2088.39)
> >
> > Sleeps 48950 (3140.18)
> >
>
> I don't think anyone did so far.
>
> > ??
> > ??
> > I verified the "xm dmesg" and there is no print of "Extended Page Tables
> (EPT)". Does this mean that the extended page
> > table support is not there? Can I enable this through BIOS option? If it
> can't be enabled using BIOS option, could you
> > please let me know the Intel chipset series which has this support.
> >
> >
>
> I don't think that EPT can be enable/disable via BIOS, probably your
> cpu doesn't support it.
> The first Intel cpu series to support EPT is Nehalem:
>
> http://en.wikipedia.org/wiki/Nehalem_%28microarchitecture%29
>
> all the new desktops and servers sold today should have ept support, you
> can check on the intel website to be sure.
>

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