From mboxrd@z Thu Jan  1 00:00:00 1970
From: Avi Kivity <avi@redhat.com>
Subject: Re: KVM got slow after adding more physical memory to host
Date: Tue, 06 Sep 2011 18:45:58 +0300
Message-ID: <4E664036.20308@redhat.com>
References: <20110906140201.GF18218@pcnci.linuxbox.cz> <4E663897.60901@redhat.com> <20110906153801.GA2152@nik-comp.lan>
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Cc: kvm@vger.kernel.org
To: Nikola Ciprich <nikola.ciprich@linuxbox.cz>
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On 09/06/2011 06:38 PM, Nikola Ciprich wrote:
> Hello Avi,
> thanks for quick reply!
>
> >  How many guests in there?
> two currently (one x86_64 centos, one winXP), with more, the box get even more unresponsive.
>
> >
> >  Please post a trace as per http://www.linux-kvm.org/page/Tracing.
> here it goes:
> http://nelide.cz/nik/trace.dat.bz2

404

>
> >
> >  Please post /proc/mtrr and /proc/iomem.
> [root@virtualbox ~]# cat /proc/mtrr
> reg00: base=0x000000000 (    0MB), size=16384MB, count=1: write-back
> reg01: base=0x400000000 (16384MB), size= 4096MB, count=1: write-back
> reg02: base=0x500000000 (20480MB), size= 1024MB, count=1: write-back
> reg03: base=0x0c0000000 ( 3072MB), size= 1024MB, count=1: uncachable
>
>

These seem fine - all your memory is write-back.

-- 
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