From: Nikola Ciprich <extmaillist@linuxbox.cz>
To: Gilles PIETRI <contact+dev@gilouweb.com>
Cc: kvm@vger.kernel.org, nikola.ciprich@linuxbox.cz
Subject: Re: KSM not working on 2.6.28.7 and qemu-kvm 0.12.2 ?
Date: Mon, 22 Feb 2010 06:40:32 +0100 [thread overview]
Message-ID: <20100222054031.GD30897@develbox.linuxbox.cz> (raw)
In-Reply-To: <4B81A70A.1010407@gilouweb.com>
Hi Gilles, maybe You have the same problem I experienced?
see http://www.mail-archive.com/kvm@vger.kernel.org/msg28572.html
nik
On Sun, Feb 21, 2010 at 10:35:06PM +0100, Gilles PIETRI wrote:
> Hi,
>
> I'm running a 2.6.32.7 kernel with KSM enabled (CONFIG_KSM=y), with
> qemu-kvm 0.12.2 that has support for KSM (exec.c checks for
> MADV_MERGEABLE)..
>
> So I have KSM running, /sys/kernel/mm/ksm/run is at 1, and after a
> few hours running a dozen of VMs, many of them running the same
> OS/base image, I see no page being shared, KSM seems inactive.
>
> Values are pretty much to their default value, and it seems KSM is
> simply not working.. I see ksmd in the process list though, but here
> are the sysfs values reported:
> ==> /sys/kernel/mm/ksm/full_scans <==
> 0
>
> ==> /sys/kernel/mm/ksm/max_kernel_pages <==
> 1027257
>
> ==> /sys/kernel/mm/ksm/pages_shared <==
> 0
>
> ==> /sys/kernel/mm/ksm/pages_sharing <==
> 0
>
> ==> /sys/kernel/mm/ksm/pages_to_scan <==
> 100
>
> ==> /sys/kernel/mm/ksm/pages_unshared <==
> 0
>
> ==> /sys/kernel/mm/ksm/pages_volatile <==
> 0
>
> ==> /sys/kernel/mm/ksm/run <==
> 1
>
> ==> /sys/kernel/mm/ksm/sleep_millisecs <==
> 20
>
> Any clues?
>
> Cheers,
> Gilou
> --
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next parent reply other threads:[~2010-02-22 5:40 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <4B81A70A.1010407@gilouweb.com>
2010-02-22 5:40 ` Nikola Ciprich [this message]
2010-02-22 21:02 ` KSM not working on 2.6.28.7 and qemu-kvm 0.12.2 ? Gilles PIETRI
2010-02-23 18:21 ` Gilles PIETRI
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