From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755891Ab3AERV0 (ORCPT ); Sat, 5 Jan 2013 12:21:26 -0500 Received: from mail.digium.com ([216.207.245.2]:39551 "EHLO mail.digium.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755802Ab3AERVX (ORCPT ); Sat, 5 Jan 2013 12:21:23 -0500 Date: Sat, 5 Jan 2013 11:21:16 -0600 From: Shaun Ruffell To: Sadasivan Shaiju Cc: linux-kernel@vger.kernel.org, venki@google.com, a.p.zijlstra@chello.nl Subject: Re: Incorrect accounting of irq into the running task Message-ID: <20130105172116.GA65150@digium.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Jan 04, 2013 at 10:22:12AM -0800, Sadasivan Shaiju wrote: > Hi Venkatesh, > > I have applied the following patches for the incorrect accounting > of irq into the running task . > > > [PATCH] x86: Add IRQ_TIME_ACCOUNTING > [e82b8e4ea4f3dffe6e7939f90e78da675fcc450e] > [PATCH] sched: Add IRQ_TIME_ACCOUNTING, finer accounting of irq time > [b52bfee445d315549d41eacf2fa7c156e7d153d5] > > [PATCH] sched: Do not account irq time to current task > [305e6835e05513406fa12820e40e4a8ecb63743c] > [PATCH] sched: Export ns irqtimes through /proc/stat > [abb74cefa9c682fb38ba86c17ca3c86fed6cc464] > > > > But still the stime and utime of the process in /proc/pid/stat is > high. I think the above patches does not update The stime and > utime values in /proc/pid/stat. > > > Or am I missing anything? Just checking that you do have CONFIG_IRQ_TIME_ACCOUNTING=y in your kernel config? Cheers, Shaun