From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: [2.6.36-rc3] Workqueues, XFS, dependencies and deadlocks Date: Wed, 08 Sep 2010 12:28:40 +0200 Message-ID: <4C876558.4050301@kernel.org> References: <20100907072954.GM705@dastard> <4C86003B.6090706@kernel.org> <20100907100108.GN705@dastard> <4C861582.6080102@kernel.org> <20100907124850.GP705@dastard> <4C865CC4.9070701@kernel.org> <20100908073428.GR705@dastard> <4C87474B.3050405@kernel.org> <20100908082819.GV705@dastard> <4C874D55.6080402@kernel.org> <20100908101222.GY705@dastard> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: linux-kernel@vger.kernel.org, xfs@oss.sgi.com, linux-fsdevel@vger.kernel.org To: Dave Chinner Return-path: Received: from hera.kernel.org ([140.211.167.34]:47895 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750959Ab0IHK2w (ORCPT ); Wed, 8 Sep 2010 06:28:52 -0400 In-Reply-To: <20100908101222.GY705@dastard> Sender: linux-fsdevel-owner@vger.kernel.org List-ID: Hello, On 09/08/2010 12:12 PM, Dave Chinner wrote: > Ok, so in this case if this was on CPU 1, I'd see kworker[1:0], > kworker[1:1] and kworker[1:2] threads all accumulate CPU time? I'm > just trying to relate your example it to behaviour I've seen to > check if I understand the example correctly. Yes, you're right. If all three works just burn CPU cycles for 5ms then you'll only see one kworker w/ 15ms of accumulated CPU time. Thanks. -- tejun