From owner-freebsd-current@FreeBSD.ORG Tue May 30 10:17:43 2006 Return-Path: X-Original-To: freebsd-current@freebsd.org Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 7E64D16A425 for ; Tue, 30 May 2006 10:17:43 +0000 (UTC) (envelope-from avg@icyb.net.ua) Received: from citadel.icyb.net.ua (citadel.icyb.net.ua [212.40.38.140]) by mx1.FreeBSD.org (Postfix) with ESMTP id 9F84C43D46 for ; Tue, 30 May 2006 10:17:39 +0000 (GMT) (envelope-from avg@icyb.net.ua) Received: from [212.40.38.87] (oddity-e.topspin.kiev.ua [212.40.38.87]) by citadel.icyb.net.ua (8.8.8p3/ICyb-2.3exp) with ESMTP id NAA16821; Tue, 30 May 2006 13:17:33 +0300 (EEST) (envelope-from avg@icyb.net.ua) Message-ID: <447C1BBD.5020004@icyb.net.ua> Date: Tue, 30 May 2006 13:17:33 +0300 From: Andriy Gapon User-Agent: Thunderbird 1.5.0.2 (X11/20060512) MIME-Version: 1.0 To: Nate Lawson References: <1148837064.00534930.1148826605@10.7.7.3> <1148945069.00535906.1148934001@10.7.7.3> In-Reply-To: <1148945069.00535906.1148934001@10.7.7.3> References: <447B551F.8000904@root.org> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: freebsd-current@freebsd.org Subject: Re: Freeze due to performance_cx_lowest=LOW X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 30 May 2006 10:17:44 -0000 on 29/05/2006 23:10 Nate Lawson said the following: > > disable apic (hint.apic.0.disabled="1"). I isolated this a little while > ago to the change to enable LAPIC timer. However, there is currently no > easy way to disable the LAPIC timer with APIC enabled so you have to > disable APIC. jhb@ and I have been discussing how to do this better but > no easy answers apparently. I am not sure what I am talking about, but is it potentially possible to drive timer system by more than one clock, actively using the most precise of them at any particular moment ? So that if LAPIC timer stops i8254 can be used instead. -- Andriy Gapon