From mboxrd@z Thu Jan 1 00:00:00 1970 From: Evert Subject: Re: Live memory allocation? Date: Thu, 26 Mar 2009 18:47:23 +0100 Message-ID: <49CBBFAB.2050902@poboxes.info> References: <49CB86BE.40505@poboxes.info> <49CB8AC3.5090303@wpkg.org> <49CB8B59.20601@redhat.com> <49CB8CF6.70403@wpkg.org> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit To: kvm@vger.kernel.org Return-path: Received: from mail.poboxes.info ([93.184.113.14]:55398 "EHLO mail.poboxes.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756014AbZCZRra (ORCPT ); Thu, 26 Mar 2009 13:47:30 -0400 Received: from [127.0.0.1] (pc-evert.meulie.net [192.168.24.24]) (Authenticated sender: evert@local.meulie.net) by mail.poboxes.info (Postfix) with ESMTPA id 67E137CFCAE for ; Thu, 26 Mar 2009 18:47:26 +0100 (CET) In-Reply-To: <49CB8CF6.70403@wpkg.org> Sender: kvm-owner@vger.kernel.org List-ID: Tomasz Chmielewski wrote: > Izik Eidus schrieb: >> Tomasz Chmielewski wrote: >>> Evert schrieb: >>>> Hi all, >>>> >>>> According to the Wikipedia ( >>>> http://en.wikipedia.org/wiki/Comparison_of_platform_virtual_machines >>>> ) both VirtualBox & VMware server support something called 'Live >>>> memory allocation'. >>>> Does KVM support this as well? >>> >>> What does this term mean exactly? Is it the same as "ballooning" used >>> by KVM? >>> >>> >> I guess it referring to memory allocation on first time access to the >> memory areas, Meaning the memory allocation will be made only when it >> really going to be used. > > Like, two guests, each with 2 GB memory allocated only use 1 GB of > host's memory (as long as they don't have many programs/buffers/cache)? > > So yes, it's also supported by KVM. > > I have amended http://en.wikipedia.org/wiki/Comparison_of_platform_virtual_machines based on this thread :-) Greetings, Evert