Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755630Ab0F1WzH (ORCPT ); Mon, 28 Jun 2010 18:55:07 -0400 Received: from mail-ww0-f46.google.com ([74.125.82.46]:42415 "EHLO mail-ww0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753517Ab0F1WzE (ORCPT ); Mon, 28 Jun 2010 18:55:04 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=date:from:to:cc:subject:message-id:references:mime-version :content-type:content-disposition:in-reply-to:user-agent; b=egPHeilKGiBL8tyN9lh9JsdE588z1EFRfYLe297KjaVBXfKOVk0ZNRUE8OVdUcvD6E 116jJKw7GstT1XXyIe82fH9Xeu7egxy1xbfp+Ow/aMFR6nmgNGk9Qb7OUwNmGKDGyRYl 7mbSg31XzlpozS4ZPyXm93JUs8tUbxwMUEjDs= Date: Tue, 29 Jun 2010 00:55:14 +0200 From: Frederic Weisbecker To: Tejun Heo Cc: torvalds@linux-foundation.org, mingo@elte.hu, linux-kernel@vger.kernel.org, jeff@garzik.org, akpm@linux-foundation.org, rusty@rustcorp.com.au, cl@linux-foundation.org, dhowells@redhat.com, arjan@linux.intel.com, oleg@redhat.com, axboe@kernel.dk, dwalker@codeaurora.org, stefanr@s5r6.in-berlin.de, florian@mickler.org, andi@firstfloor.org, mst@redhat.com, randy.dunlap@oracle.com, Arjan van de Ven Subject: Re: [PATCH 34/35] async: use workqueue for worker pool Message-ID: <20100628225513.GB10104@nowhere> References: <1277759063-24607-1-git-send-email-tj@kernel.org> <1277759063-24607-35-git-send-email-tj@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1277759063-24607-35-git-send-email-tj@kernel.org> User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 708 Lines: 17 On Mon, Jun 28, 2010 at 11:04:22PM +0200, Tejun Heo wrote: > Replace private worker pool with system_long_wq. It appeared to me that async is deemed to parallelize as much as possible, to probe devices faster on boot for example, while cmwq seems to do the opposite: trying to execute in batches as much as possible, and fork when a work goes to sleep voluntarily. That said I haven't checked that deeply so it's fairly possible I missed something obvious :) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/