From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jeremy Fitzhardinge <jeremy@goop.org>
Subject: Re: [Xen-devel] Re: About profiling xen
Date: Wed, 30 Sep 2009 16:19:03 -0700
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To: Marco Tizzoni <marco.tizzoni@gmail.com>
Cc: "Fajar A." <fajar@fajar.net>, Fasiha Ashraf <feehapk@yahoo.co.in>, xen <xen-devel@lists.xensource.com>, xen-users@lists.xensource.com
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On 09/30/09 00:45, Marco Tizzoni wrote:
> On Wed, Sep 30, 2009 at 8:40 AM, Marco Tizzoni <marco.tizzoni@gmail.com=
> wrote:
>  =20
>> On Wed, Sep 30, 2009 at 8:37 AM, Pasi K=E4rkk=E4inen <pasik@iki.fi> wr=
ote:
>>    =20
>>> 250 per second.. sounds like kernel HZ value?
>>>      =20
>> Yes, infact I'm going to test it with 1000Khz. Stay tuned.
>>    =20
> Building dom0 kernel with 1000hz the rate reach 1k. Ok, one point. Then=
?
> Why this behaviour occurs only on xenolinux?
>  =20

Which kernel are you using?  Do you have:

CONFIG_NO_HZ=3Dy
CONFIG_HIGH_RES_TIMERS=3Dy

configured?

    J