Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755220AbXEUGFT (ORCPT ); Mon, 21 May 2007 02:05:19 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754082AbXEUGFJ (ORCPT ); Mon, 21 May 2007 02:05:09 -0400 Received: from adsl-69-232-92-238.dsl.sndg02.pacbell.net ([69.232.92.238]:49539 "EHLO gnuppy.monkey.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754052AbXEUGFH (ORCPT ); Mon, 21 May 2007 02:05:07 -0400 Date: Sun, 20 May 2007 23:04:46 -0700 To: Peter Zijlstra Cc: linux-kernel@vger.kernel.org, Jason Baron , Steven Rostedt , Ingo Molnar , "Bill Huey (hui)" Subject: Re: [PATCH] lockdep: lock contention tracking Message-ID: <20070521060446.GA4593@gnuppy.monkey.org> References: <1179657026.5915.10.camel@lappy> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1179657026.5915.10.camel@lappy> User-Agent: Mutt/1.5.13 (2006-08-11) From: Bill Huey (hui) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 864 Lines: 22 On Sun, May 20, 2007 at 12:30:26PM +0200, Peter Zijlstra wrote: > The 4 points are the first 4 unique callsites that cause lock contention > for the specified lock class. > > writing a 0 to /proc/lockdep_contentions clears the stats We should talk about unifying it with my lockstat work for -rt so that we have a comprehensive solution for the "world". But you know that already :) Unifying lock initializer hash key initialization functions is a key first step to that. Keep in mind, we can do more with this mechanism than just kernel locks and we should probably keep that open and not code into a corner. bill - 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/