From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753766Ab0EWKUd (ORCPT ); Sun, 23 May 2010 06:20:33 -0400 Received: from mx3.mail.elte.hu ([157.181.1.138]:40930 "EHLO mx3.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752904Ab0EWKUc (ORCPT ); Sun, 23 May 2010 06:20:32 -0400 Date: Sun, 23 May 2010 12:20:24 +0200 From: Ingo Molnar To: Tejun Heo Cc: peterz@infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCHSET sched/core] sched: prepare for cmwq Message-ID: <20100523102024.GA20869@elte.hu> References: <1273747705-7829-1-git-send-email-tj@kernel.org> <4BF1CD92.9030800@kernel.org> <4BF689DD.2090306@kernel.org> <20100523090544.GB25524@elte.hu> <4BF8F0A4.5060608@kernel.org> <20100523091306.GE25524@elte.hu> <4BF8F46A.1060407@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4BF8F46A.1060407@kernel.org> User-Agent: Mutt/1.5.20 (2009-08-17) X-ELTE-SpamScore: -2.0 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-2.0 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.5 -2.0 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Tejun Heo wrote: > Hello, > > On 05/23/2010 11:13 AM, Ingo Molnar wrote: > > > ... which is then used for the concurrency-managed > > workqueue feature, which is then used for a BTRFS > > speedup, right? > > > > ( If that's not the plan then color me confused :) > > Yeap, you're officially confused. :-) It doesn't have > much to do with btrfs at this point [...] Not exclusive to btrfs of course, but IIRC one of the examples given in one of those threads was btrfs scalability, right? In case it's not obvious, i'm trying to find a tangible improvement to examine. No need to resend stuff, do you have a link to that old performance measurement by any chance? Thanks, Ingo