From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755562AbZBRUbX (ORCPT ); Wed, 18 Feb 2009 15:31:23 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752787AbZBRUbP (ORCPT ); Wed, 18 Feb 2009 15:31:15 -0500 Received: from bombadil.infradead.org ([18.85.46.34]:46473 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752525AbZBRUbO (ORCPT ); Wed, 18 Feb 2009 15:31:14 -0500 Date: Wed, 18 Feb 2009 15:30:53 -0500 From: Kyle McMartin To: Jason Baron Cc: mingo@elte.hu, rostedt@goodmis.org, linux-kernel@vger.kernel.org, acme@ghostprotocols.net, fweisbec@gmail.com, fche@redhat.com, peterz@infradead.org, compudj@krystal.dyndns.org Subject: Re: [PATCH] new irq tracer Message-ID: <20090218203053.GA17272@bombadil.infradead.org> References: <20090218195328.GA3112@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20090218195328.GA3112@redhat.com> 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 On Wed, Feb 18, 2009 at 02:53:28PM -0500, Jason Baron wrote: > hi, > > I think this patch is useful in understanding irq system behavior, and > for tracking down irq driver handlers that are firing too often or > spending too much time handling an irq. This approach could be extended > to the timer irq and for softirqs... > Very cool, I had written something similar a week or two ago to debug something but never had gotten around to posting it. :) Looks like it works just as well too. Glad to see it. cheers, Kyle