From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932234AbVHKCkA (ORCPT ); Wed, 10 Aug 2005 22:40:00 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932231AbVHKCkA (ORCPT ); Wed, 10 Aug 2005 22:40:00 -0400 Received: from e32.co.us.ibm.com ([32.97.110.130]:24569 "EHLO e32.co.us.ibm.com") by vger.kernel.org with ESMTP id S932236AbVHKCj7 (ORCPT ); Wed, 10 Aug 2005 22:39:59 -0400 Subject: Re: [RFC - 0/9] Generic timekeeping subsystem (v. B5) From: john stultz To: Lee Revell Cc: lkml , George Anzinger , frank@tuxrocks.com, Anton Blanchard , benh@kernel.crashing.org, Nishanth Aravamudan , Roman Zippel , Ulrich Windl In-Reply-To: <1123727560.30850.1.camel@mindpipe> References: <1123723279.30963.267.camel@cog.beaverton.ibm.com> <1123726394.32531.33.camel@cog.beaverton.ibm.com> <1123727560.30850.1.camel@mindpipe> Content-Type: text/plain Date: Wed, 10 Aug 2005 19:39:54 -0700 Message-Id: <1123727994.32531.62.camel@cog.beaverton.ibm.com> Mime-Version: 1.0 X-Mailer: Evolution 2.0.4 (2.0.4-4) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 2005-08-10 at 22:32 -0400, Lee Revell wrote: > On Wed, 2005-08-10 at 19:13 -0700, john stultz wrote: > > All, > > Here's the next rev in my rework of the current timekeeping subsystem. > > No major changes, only some cleanups and further splitting the larger > > patches into smaller ones. > > Last I heard this made gettimeofday() 20% slower on x86. Is this still > the case? Ah, I've got a patch on my laptop that takes that down to ~2% or less. I didn't include it in this patch set but I'll work to get it integrated before the next release. Sorry about that. If you have any suggestions for further performance improvements, please let me know. thanks -john