From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rik van Riel Subject: Re: Swap usage with KVM Date: Sun, 11 Jul 2010 17:49:43 -0400 Message-ID: <4C3A3C77.2010408@redhat.com> References: <20100711151257.GA13279@defiant.freesoftware> <20100711191227.GD9267@defiant.freesoftware> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit To: dbareiro@gmx.net, KVM General , "hugh.dickins@tiscali.co.uk" Return-path: Received: from mx1.redhat.com ([209.132.183.28]:43758 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753264Ab0GKVtx (ORCPT ); Sun, 11 Jul 2010 17:49:53 -0400 In-Reply-To: <20100711191227.GD9267@defiant.freesoftware> Sender: kvm-owner@vger.kernel.org List-ID: On 07/11/2010 03:12 PM, Daniel Bareiro wrote: > On Sunday, 11 July 2010 12:12:57 -0300, > Daniel Bareiro wrote: > >> I have an installation with Debian GNU/Linux 5.0.4 amd64 with qemu-kvm >> 0.12.3 compiled with the source code obtained from the official site >> of KVM and Linux 2.6.32.12 compiled from source code of kernel.org. >> All this is installed on an HP Proliant DL380 G6 with two Xeon E5530 >> quadcore processors and 16 GiB of RAM which has two VMs with the >> following configuration of memory: >> >> Hostname | RAM >> ===============+=============== >> Aps4 | 7 GiB >> Leela | 7 GiB >> ===============+=============== >> TOTAL | 14 GiB >> >> Initially the host was created with a swap partition of 1 GiB, but >> today we found that the use of swap quickly began to grow >> increasingly. Therefore, as a contingency, we had to hot-add a >> logical volume of 1 GB of swap on the VMHost. Is 'normal' this use of >> memory? That depends on what is going on in the host. Did you notice any performance issues in the guest when you started using swap? > Has anyone experienced something like this? Avi? I remember late last > year there was a regression in Linux swapping and Rik and Hugh were > working on it. Are you aware of any? That one should have been fixed. -- All rights reversed