From owner-freebsd-acpi@FreeBSD.ORG Mon Jan 10 22:41:57 2011 Return-Path: Delivered-To: acpi@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 86DAB106566B; Mon, 10 Jan 2011 22:41:57 +0000 (UTC) (envelope-from arno@heho.snv.jussieu.fr) Received: from shiva.jussieu.fr (shiva.jussieu.fr [134.157.0.129]) by mx1.freebsd.org (Postfix) with ESMTP id 024688FC15; Mon, 10 Jan 2011 22:41:56 +0000 (UTC) Received: from heho.snv.jussieu.fr (heho.snv.jussieu.fr [134.157.184.22]) by shiva.jussieu.fr (8.14.4/jtpda-5.4) with ESMTP id p0AMfsJh073433 ; Mon, 10 Jan 2011 23:41:55 +0100 (CET) X-Ids: 165 Received: from heho.snv.jussieu.fr (localhost [127.0.0.1]) by heho.snv.jussieu.fr (8.14.3/8.14.3) with ESMTP id p0AMdGZ9022458; Mon, 10 Jan 2011 23:39:16 +0100 (CET) (envelope-from arno@heho.snv.jussieu.fr) Received: (from arno@localhost) by heho.snv.jussieu.fr (8.14.3/8.14.3/Submit) id p0AMdGLX022455; Mon, 10 Jan 2011 23:39:16 +0100 (CET) (envelope-from arno) To: Alexander Motin From: "Arno J. Klaassen" References: <201101101500.45783.jhb@freebsd.org> <4D2B67E4.70907@FreeBSD.org> <201101101515.47127.jhb@freebsd.org> <4D2B8944.6030200@FreeBSD.org> Date: Mon, 10 Jan 2011 23:39:16 +0100 In-Reply-To: <4D2B8944.6030200@FreeBSD.org> (Alexander Motin's message of "Tue\, 11 Jan 2011 00\:33\:40 +0200") Message-ID: User-Agent: Gnus/5.11 (Gnus v5.11) Emacs/22.3 (berkeley-unix) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Miltered: at jchkmail.jussieu.fr with ID 4D2B8B33.001 by Joe's j-chkmail (http : // j-chkmail dot ensmp dot fr)! X-j-chkmail-Enveloppe: 4D2B8B33.001/134.157.184.22/heho.snv.jussieu.fr/heho.snv.jussieu.fr/ Cc: acpi@FreeBSD.org, John Baldwin Subject: Re: Tyan S3992-E: hpet no longer working X-BeenThere: freebsd-acpi@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: ACPI and power management development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 10 Jan 2011 22:41:57 -0000 Alexander Motin writes: > Arno J. Klaassen wrote: >> Sure .. that said, the BIOS I use is the last official release for this >> board (Sept 2009) and not even a more recent beta-release is available. >> >> I would expect reporting a disabled device which cannot be enabled via >> de BIOS a bug deserving a newer release. >> >> Anyway, this bug isn't very harmful for me, but the non-hpet >> timecounters don't seem that fun either : >> >> # uptime >> 10:27PM up 2 days, 5:44 >> >> # sysctl kern.timecounter.hardware kern.timecounter.choice >> kern.timecounter.hardware: ACPI-safe >> kern.timecounter.choice: TSC(-100) i8254(0) ACPI-safe(850) dummy(-1000000) >> >> # vmstat -i | fgrep cpu: >> cpu0:timer 38599321 199 >> cpu6:timer 2151003 11 >> cpu1:timer 7121075 36 >> cpu3:timer 1808269 9 >> cpu5:timer 3832463 19 >> cpu2:timer 2399988 12 >> cpu7:timer 2013444 10 >> cpu4:timer 21630368 111 >> >> (default HZ ....) >> >> Maybe I should try downgrading the BIOS? > > So what here seems not funny to you? Lower timer interrupt rate is not a > bug but feature of 9-CURRENT. the standard deviation in the values; I don't have another 8-way by hand, but a 4-way 6-STABLE gives : cpu0: timer 3299774936 2000 cpu2: timer 3299757640 2000 cpu3: timer 3299757640 2000 cpu1: timer 3299757640 2000 and my 8-STABLE notebook (with kern.hz=100) : cpu0: timer 323161363 400 cpu1: timer 323161114 400 A range from 9 to 199 is 'funny', maybe I choose the wrong word, but I didn't see such discrepancies before. Sorry Best, Arno