From: Dave Chinner Subject: Re: A huge latency in ext4 and xfs because of stable page write Date: Thu, 13 Dec 2012 10:07:41 +1100 Message-ID: <20121212230741.GX16353@dastard> References: <20121211084520.GA13277@gmail.com> <20121211111707.GU15784@dastard> <20121212041803.GA29427@gmail.com> <20121212044948.GW16353@dastard> <20121212051332.GA6718@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-fsdevel@vger.kernel.org To: Stefan Ring Return-path: Received: from ipmail05.adl6.internode.on.net ([150.101.137.143]:62929 "EHLO ipmail05.adl6.internode.on.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755149Ab2LLXHq (ORCPT ); Wed, 12 Dec 2012 18:07:46 -0500 Content-Disposition: inline In-Reply-To: Sender: linux-ext4-owner@vger.kernel.org List-ID: On Wed, Dec 12, 2012 at 08:23:43AM +0100, Stefan Ring wrote: > >> http://www.spinics.net/lists/linux-fsdevel/msg59421.html > > > > Thanks for pointing out. So now it seems that only I can do is to > > present a proposal to revert stable page write temporarily because = it > > causes a huge latency for some applications. >=20 > There has just been a write-up on the topic of stable pages in last > week=E2=80=99s LWN: http://lwn.net/Articles/528031/ >=20 > The link should become available for non-subscribers tomorrow. This is what subscriber links are for - when a LWN article is relevant to a specific discussion, a subscriber can use their discretion to post world readable link to the pay-walled article so everyone is able to read the article.... This is one of the reasons I really like LWN and the way Jon has set up subscriptions (and encourage anyone who doesn't subscribe to do so). The paywall is something I *choose* to participate in to get articles as quickly as possible, but have the option of being able to let non-subscribers read articles immediately if *I* consider it relevant to a discussion. That's definitely the case here.... That said, a link has aleady been posted, so I don't have to do anything but cheerlead here. :) Cheers, Dave. --=20 Dave Chinner david@fromorbit.com -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html