Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755478Ab3HWNGg (ORCPT ); Fri, 23 Aug 2013 09:06:36 -0400 Received: from merlin.infradead.org ([205.233.59.134]:50472 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755417Ab3HWNGf (ORCPT ); Fri, 23 Aug 2013 09:06:35 -0400 Date: Fri, 23 Aug 2013 15:06:29 +0200 From: Peter Zijlstra To: Johannes Berg Cc: Martin Mokrejs , Theodore Tso , Thomas Gleixner , mingo@redhat.com, LKML Subject: Re: [sched_delayed] sched: RT throttling activated Message-ID: <20130823130629.GZ31370@twins.programming.kicks-ass.net> References: <521722EE.70209@fold.natur.cuni.cz> <20130823100913.GQ31370@twins.programming.kicks-ass.net> <52173BBD.3050803@fold.natur.cuni.cz> <20130823110254.GU31370@twins.programming.kicks-ass.net> <521748FC.10809@fold.natur.cuni.cz> <20130823121004.GW31370@twins.programming.kicks-ass.net> <1377261222.14021.23.camel@jlt4.sipsolutions.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1377261222.14021.23.camel@jlt4.sipsolutions.net> User-Agent: Mutt/1.5.21 (2012-12-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 753 Lines: 20 On Fri, Aug 23, 2013 at 02:33:42PM +0200, Johannes Berg wrote: > On Fri, 2013-08-23 at 14:10 +0200, Peter Zijlstra wrote: > > > > 2161 FF [irq/50-iwlwifi] > > > > Oh a threaded interrupt, I presume you're not using "threadiqrs" since > > this is the only interrupt thread around and I see a > > 'request_threaded_irq()' call in > > drivers/net/wireless/iwlwifi/pcie/trans.c > > > > And wow, why would that thing consume that much cpu. > > How much is "that much"? 0.95s worth of time in the past 1s. -- 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/