From mboxrd@z Thu Jan 1 00:00:00 1970 From: Simon Rowe Subject: Re: Is there an issue with turning off "scrubbing free RAM" on boot with Xen 4.1.3 Date: Thu, 10 Oct 2013 09:39:21 +0100 Message-ID: <525667B9.9010309@eu.citrix.com> References: <52559F56.3070901@mokumsolutions.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============5803152893617839745==" Return-path: In-Reply-To: <52559F56.3070901@mokumsolutions.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: xen-devel@lists.xen.org, roddy.rodstein@mokumsolutions.com List-Id: xen-devel@lists.xenproject.org --===============5803152893617839745== Content-Type: multipart/alternative; boundary="------------010800070304000300040806" --------------010800070304000300040806 Content-Type: text/plain; charset="ISO-8859-1"; format=flowed Content-Transfer-Encoding: 7bit On 09/10/13 19:24, Roddy Rodstein wrote: > > Greetings, > > Thank you in advance for your support! > > Our HP Xen 4.1.3 servers have 1TB of RAM, each Xen servers take 20 > minutes to boot largely due to the "scrub free RAM" phase. If/when we > have dom0 failures and HA kicks-in, we would like to reduce the boot > time to make the resource quickly available, perhaps using the > no-bootscrub attribute in grub.conf. > > Malcolm's patch to parallelize scrubbing was posted recently http://lists.xen.org/archives/html/xen-devel/2013-09/msg03171.html I don't think it's been committed to xen-unstable yet, Simon --------------010800070304000300040806 Content-Type: text/html; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit

On 09/10/13 19:24, Roddy Rodstein wrote:

Greetings,

Thank you in advance for your support!

Our HP Xen 4.1.3 servers have 1TB of RAM, each Xen servers take 20 minutes to boot largely due to the "scrub free RAM" phase. If/when we have dom0 failures and HA kicks-in, we would like to reduce the boot time to make the resource quickly available, perhaps using the no-bootscrub attribute in grub.conf.

Malcolm's patch to parallelize scrubbing was posted recently

http://lists.xen.org/archives/html/xen-devel/2013-09/msg03171.html

I don't think it's been committed to xen-unstable yet,

Simon

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