Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758817AbXKMPdu (ORCPT ); Tue, 13 Nov 2007 10:33:50 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758941AbXKMPdk (ORCPT ); Tue, 13 Nov 2007 10:33:40 -0500 Received: from pentafluge.infradead.org ([213.146.154.40]:43471 "EHLO pentafluge.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754365AbXKMPdj (ORCPT ); Tue, 13 Nov 2007 10:33:39 -0500 Subject: Re: [RFC] Add markers into semaphore primitives From: Peter Zijlstra To: "David J. Wilder" Cc: linux-kernel@vger.kernel.org In-Reply-To: <1194915156.913.4.camel@lc4eb748232119.ibm.com> References: <1194915156.913.4.camel@lc4eb748232119.ibm.com> Content-Type: text/plain Date: Tue, 13 Nov 2007 16:33:34 +0100 Message-Id: <1194968014.8255.23.camel@twins> Mime-Version: 1.0 X-Mailer: Evolution 2.12.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 613 Lines: 15 On Mon, 2007-11-12 at 16:52 -0800, David J. Wilder wrote: > This patch adds several markers around semaphore primitives. > Along with a tracing application this patch can be useful for measuring > kernel semaphore usage and contention. It would be much better to help in eradicating every last semaphore user and then these statistics will be provided by lockstat. - 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/