From: Daniel Bareiro <dbareiro@uol.com.ar>
To: Rik van Riel <riel@redhat.com>
Cc: dbareiro@gmx.net, KVM General <kvm@vger.kernel.org>,
"hugh.dickins@tiscali.co.uk" <hugh.dickins@tiscali.co.uk>
Subject: Re: Swap usage with KVM (and KSM)
Date: Fri, 27 Aug 2010 07:04:34 -0300 [thread overview]
Message-ID: <20100827100434.GA12203@defiant.freesoftware> (raw)
In-Reply-To: <4C5728F6.3070703@redhat.com>
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Hi, Rik.
On Monday, 02 August 2010 16:22:14 -0400,
Rik van Riel wrote:
>> And there are some estimates of when this patch is in Linux stable?
> It should be there already in 2.6.33-stable and 2.6.34-stable.
In a test environment I have Linux 2.6.34.5 compiled with the source
code from kernel.org and qemu-kvm 0.12.4 installed from the Backports
repository of Debian GNU/Linux.
In this environment I have running the following virtual machines:
* 2 x OpenBSD (2 x 512 MB) |
* 2 x Debian GNU/Linux (2 x 256 MB) |
* 2 x Debian GNU/Linux (2 x 512 MB) +--= 11008 MB
* 1 x Centos 5.5 (1 x 256 MB) |
* 8 x Debian GNU/Linux (8 x 1024 MB) |
I'm just starting to test KSM, so I was using as reference the read of
the tests made by RedHat about run as many as 52 Windows XP VMs with 1
GB of RAM each on a server with just 16 GB of RAM.
In the previous case the ratio would be 52/16 = 3.25. In my case the
VMHost has 4 GB of RAM, so the ratio would be 10.75/4 = 2.6875. In RH
tests do not talk about the amount of swap used in that case, so I
wonder if a distribution of VMs as I have, it is normal to use 290 MB of
swap.
Regards,
Daniel
--
Mi frase del día:
BOFH excuse #335:
the AA battery in the wallclock sends magnetic interference
Daniel Bareiro - GNU/Linux registered user #188.598
Proudly running Debian GNU/Linux with uptime:
05:57:46 up 48 days, 10:50, 11 users, load average: 0.01, 0.04, 0.06
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next prev parent reply other threads:[~2010-08-27 10:04 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-11 15:12 Swap usage with KVM Daniel Bareiro
2010-07-11 19:12 ` Daniel Bareiro
2010-07-11 21:49 ` Rik van Riel
2010-08-02 18:57 ` Daniel Bareiro
2010-08-02 19:31 ` Rik van Riel
2010-08-02 19:52 ` Daniel Bareiro
2010-08-02 20:22 ` Rik van Riel
2010-08-02 21:43 ` Daniel Bareiro
2010-08-27 10:04 ` Daniel Bareiro [this message]
2010-08-27 13:42 ` Swap usage with KVM (and KSM) Rik van Riel
2010-07-11 21:05 ` Swap usage with KVM Freddie Cash
2010-07-11 22:08 ` Daniel Bareiro
2010-07-20 15:04 ` Daniel Bareiro
2010-07-20 19:18 ` David Weber
2010-07-22 10:09 ` Daniel Bareiro
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