From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jan Kara Subject: Re: [LSF/MM TOPIC] Writeback - current state and future Date: Fri, 11 Feb 2011 15:47:17 +0100 Message-ID: <20110211144717.GH5187@quack.suse.cz> References: <20110204164222.GG4104@quack.suse.cz> <4D4E7B48.9020500@panasas.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Boaz Harrosh , Jan Kara , lsf-pc@lists.linuxfoundation.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, Wu Fengguang To: Sorin Faibish Return-path: Received: from cantor2.suse.de ([195.135.220.15]:57681 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754068Ab1BKOrY (ORCPT ); Fri, 11 Feb 2011 09:47:24 -0500 Content-Disposition: inline In-Reply-To: Sender: linux-fsdevel-owner@vger.kernel.org List-ID: On Sun 06-02-11 10:13:41, Sorin Faibish wrote: > I was thinking to have a special track for all the writeback related > topics. Well, a separate track might be a bit too much I feel ;). I'm interested also in other things that are happening... We'll see what the program will be but I can imagine we can discuss for a couple of hours but that might be just a discussion in a small circle over a . > I would like also to include a discussion on new cache writeback paterns > with the target to prevent any cache swaps that are becoming a > bigger problem > when dealing with servers wir 100's GB caches. The swap is the worst that > could happen to the performance of such systems. I will share my > latest findings > in the cache writeback in continuation to my previous discussion at > last LSF. I'm not sure what do you exactly mean by 'cache swaps'. If you mean that your application private cache is swapped out, then I can imagine this is a problem but I'd need more details to tell how big. Honza -- Jan Kara SUSE Labs, CR