From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mx1.redhat.com ([209.132.183.28]) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1TWpOb-0003YO-8H for kexec@lists.infradead.org; Fri, 09 Nov 2012 14:17:22 +0000 Date: Fri, 9 Nov 2012 09:17:17 -0500 From: Vivek Goyal Subject: Re: [PATCH 0/3] makedumpfile: calculate the size of cyclic buffer automatically. Message-ID: <20121109141717.GB4842@redhat.com> References: <20121109160214.afe15ee1a047ff7354471ba0@mxc.nes.nec.co.jp> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20121109160214.afe15ee1a047ff7354471ba0@mxc.nes.nec.co.jp> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: kexec-bounces@lists.infradead.org Errors-To: kexec-bounces+dwmw2=infradead.org@lists.infradead.org To: Atsushi Kumagai Cc: kexec@lists.infradead.org On Fri, Nov 09, 2012 at 04:02:14PM +0900, Atsushi Kumagai wrote: > Hello, > > I made the patch set based on v1.5.1-beta to calculate the size of cyclic > buffer automatically. > > In v1.5.0, users have to specify the buffer size depending on system memory > size with --cyclic-buffer option in order to get decent performance. > > This patch set avoids the inconvenience above by choosing the lesser value > of the two below as the size of cyclic buffer automatically: > > a. the size enough for storing the 1st/2nd bitmap for the whole of vmcore > b. 80% of free memory (as safety limit) > > Additionally, this patch set remove --cyclic-buffer option because I think > it has been already unnecessary. I was wondering how about retaining --cyclic-buffer option. If there are use cases where user's don't like default of 80% of free memory they can override this policy by specifying --cyclic-buffer. Thanks Vivek _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec