From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx151.postini.com [74.125.245.151]) by kanga.kvack.org (Postfix) with SMTP id 998436B0006 for ; Tue, 2 Apr 2013 11:06:53 -0400 (EDT) Date: Tue, 2 Apr 2013 11:06:51 -0400 From: Theodore Ts'o Subject: Re: Excessive stall times on ext4 in 3.9-rc2 Message-ID: <20130402150651.GB31577@thunk.org> References: <20130402142717.GH32241@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20130402142717.GH32241@suse.de> Sender: owner-linux-mm@kvack.org List-ID: To: Mel Gorman Cc: linux-ext4@vger.kernel.org, LKML , Linux-MM , Jiri Slaby On Tue, Apr 02, 2013 at 03:27:17PM +0100, Mel Gorman wrote: > I'm testing a page-reclaim-related series on my laptop that is partially > aimed at fixing long stalls when doing metadata-intensive operations on > low memory such as a git checkout. I've been running 3.9-rc2 with the > series applied but found that the interactive performance was awful even > when there was plenty of free memory. Can you try 3.9-rc4 or later and see if the problem still persists? There were a number of ext4 issues especially around low memory performance which weren't resolved until -rc4. Thanks, - Ted -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org