Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1945970AbWANBnZ (ORCPT ); Fri, 13 Jan 2006 20:43:25 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1945971AbWANBnZ (ORCPT ); Fri, 13 Jan 2006 20:43:25 -0500 Received: from ms-smtp-03.nyroc.rr.com ([24.24.2.57]:65517 "EHLO ms-smtp-03.nyroc.rr.com") by vger.kernel.org with ESMTP id S1945970AbWANBnY (ORCPT ); Fri, 13 Jan 2006 20:43:24 -0500 Date: Fri, 13 Jan 2006 20:43:07 -0500 (EST) From: Steven Rostedt X-X-Sender: rostedt@gandalf.stny.rr.com To: john stultz cc: Lee Revell , Thomas Gleixner , Ingo Molnar , Roger Heflin , "'linux-kernel'" Subject: RE: Dual core Athlons and unsynced TSCs In-Reply-To: <1137202773.11300.37.camel@cog.beaverton.ibm.com> Message-ID: References: <1137168254.7241.32.camel@localhost.localdomain> <1137174463.15108.4.camel@mindpipe> <1137174848.15108.11.camel@mindpipe> <1137178506.15108.38.camel@mindpipe> <1137182991.8283.7.camel@localhost.localdomain> <1137198221.11300.21.camel@cog.beaverton.ibm.com> <1137201012.6727.1.camel@localhost.localdomain> <1137201250.1408.39.camel@mindpipe> <1137201821.11300.30.camel@cog.beaverton.ibm.com> <1137202039.1408.42.camel@mindpipe> <1137202773.11300.37.camel@cog.beaverton.ibm.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 804 Lines: 30 On Fri, 13 Jan 2006, john stultz wrote: > > This is as I understand it: > > With 2.6.15 on x86-64: > If available, alternate timesources (HPET, ACPI PM) will be used if > available on AMD SMP systems. (clock= is i386 only) Hmm, should I boot without the clock= to prove this? -- Steve > > With 2.6.15 on i386: > If CONFIG_X86_PM_TIMER is enabled, and available it is the preferred > clocksource over the TSC. Some distros have changed this priority > causing the TSC to be preferred. In these cases clock=pmtmr is needed. > > How's that? > -john > > > - 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/