Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261565AbVASFaA (ORCPT ); Wed, 19 Jan 2005 00:30:00 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261590AbVASFaA (ORCPT ); Wed, 19 Jan 2005 00:30:00 -0500 Received: from gate.crashing.org ([63.228.1.57]:25570 "EHLO gate.crashing.org") by vger.kernel.org with ESMTP id S261565AbVASF35 (ORCPT ); Wed, 19 Jan 2005 00:29:57 -0500 Subject: Re: [PATCH] dynamic tick patch From: Benjamin Herrenschmidt To: Tony Lindgren Cc: Pavel Machek , George Anzinger , john stultz , Andrea Arcangeli , Zwane Mwaikambo , Con Kolivas , Martin Schwidefsky , Linux Kernel list In-Reply-To: <20050119050701.GA19542@atomide.com> References: <20050119000556.GB14749@atomide.com> <1106108467.4500.169.camel@gaston> <20050119050701.GA19542@atomide.com> Content-Type: text/plain Date: Wed, 19 Jan 2005 16:28:45 +1100 Message-Id: <1106112525.4534.175.camel@gaston> Mime-Version: 1.0 X-Mailer: Evolution 2.0.3 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 665 Lines: 16 Hrm... reading more of the patch & Martin's previous work, I'm not sure I like the idea too much in the end... The main problem is that you are just "replaying" the ticks afterward, which I see as a problem for things like sched_clock() which returns the real current time, no ? I'll toy a bit with my own implementation directly using Martin's work and see what kind of improvement I really get on ppc laptops. Ben. - 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/