[Xen-devel] Re: [PATCH] Allow removing writable mappings from splintered page tables.

["Todd Deshane" <deshantm@xxxxxxxxx>]

On Fri, Sep 12, 2008 at 1:14 PM, Gianluca Guida
<gianluca.guida@xxxxxxxxxxxxx> wrote:
>
>
> Todd Deshane wrote:
>>>
>>> Todd: Can you try try the linux-2.6.27 kernbench with the following
>>> patch?
>>> Also, are you using ioemu stub-domains? That should also give a
>>> performance
>>> gain.
>>>
>>
>> Sure, I can give it a try. Should I also apply George's patch right?
>

Much faster, I'll also test on debian 4.0 for a regression test.

Average Optimal load -j 4 Run (std deviation):
Elapsed Time 519.056 (0.098387)
User Time 426.226 (0.815555)
System Time 92.716 (0.858563)
Percent CPU 99 (0)
Context Switches 99125.2 (71.3667)
Sleeps 31199.2 (41.3062)

I also want to look into the ioemu stub domains after reading more about them.

I'll report the debian (older kernel results) when they come out.

Todd

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel