Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754861AbYKLXH3 (ORCPT ); Wed, 12 Nov 2008 18:07:29 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751278AbYKLXHU (ORCPT ); Wed, 12 Nov 2008 18:07:20 -0500 Received: from tomts36-srv.bellnexxia.net ([209.226.175.93]:50183 "EHLO tomts36-srv.bellnexxia.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750777AbYKLXHT (ORCPT ); Wed, 12 Nov 2008 18:07:19 -0500 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: ApsEAIfqGklMQWxa/2dsb2JhbACBds99g1c Date: Wed, 12 Nov 2008 18:07:16 -0500 From: Mathieu Desnoyers To: ltt-dev@lists.casi.polymtl.ca Cc: linux-kernel@vger.kernel.org Subject: LTTng 0.53 implements new generic tracing clock Message-ID: <20081112230716.GA6696@Krystal> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Content-Disposition: inline X-Editor: vi X-Info: http://krystal.dyndns.org:8080 X-Operating-System: Linux/2.6.21.3-grsec (i686) X-Uptime: 18:02:50 up 161 days, 3:43, 7 users, load average: 6.15, 3.01, 1.83 User-Agent: Mutt/1.5.16 (2007-06-11) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 694 Lines: 19 Hi, I've implemented a new timer-based generic tracing clock in LTTng 0.53. It's only for architectures lacking proper TSC suppport. It is less intrusive than the previous implementation and does not depend directly on the jiffy variable. It should work better on NO_HZ systems. Only when tracing is active, a timer will fire every jiffy. Mathieu -- Mathieu Desnoyers OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68 -- 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/