From owner-freebsd-ppc@FreeBSD.ORG Thu Feb 12 22:36:58 2015 Return-Path: Delivered-To: freebsd-ppc@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 0D0ADBB6 for ; Thu, 12 Feb 2015 22:36:58 +0000 (UTC) Received: from sasl.smtp.pobox.com (pb-sasl1.int.icgroup.com [208.72.237.25]) by mx1.freebsd.org (Postfix) with ESMTP id CEBBC81D for ; Thu, 12 Feb 2015 22:36:57 +0000 (UTC) Received: from sasl.smtp.pobox.com (unknown [127.0.0.1]) by pb-sasl1.pobox.com (Postfix) with ESMTP id 5E5943733D; Thu, 12 Feb 2015 17:36:56 -0500 (EST) DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=pobox.com; h=content-type :mime-version:subject:from:date:cc:content-transfer-encoding :message-id:to; s=sasl; bh=HLSnRd2iuOzc4q5OniJoh3m4gy0=; b=OO79W z2sl4J7BRcaqjzMNZPHwIUrb7iRgPRBGTtgl/tMk/Bt3mcfI3MW+dB8m1mp1i/n0 KIh90ReeZo7rN5KbvfJqyOD0oup0oww61La9LvKC4CyzqhtnWxzxM8/x8hYipnBq sru2IANTu8QgszVWfM8ruFkt2QZYwrW0DyeGwg= DomainKey-Signature: a=rsa-sha1; c=nofws; d=pobox.com; h=content-type :mime-version:subject:from:date:cc:content-transfer-encoding :message-id:to; q=dns; s=sasl; b=e9P6c62tKcWL+nTHPUAnMPLWbdCBR8t a7ZscbfUYB+DZqzfagzqUsllPTYDlT4MtR2TZPl2Sw3svu6jN8/Mmh0Ohkp1GKsh GvI4cdjfPwzzyVZRZ9cqIzz+sTStzEgsiMe3NhqCt44ghk6BC6+d6H2Od07F/GbB 9iMnN25t0cR4= Received: from pb-sasl1.int.icgroup.com (unknown [127.0.0.1]) by pb-sasl1.pobox.com (Postfix) with ESMTP id 524E13733B; Thu, 12 Feb 2015 17:36:56 -0500 (EST) Received: from almini.rcthomas.org (unknown [208.53.120.31]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by pb-sasl1.pobox.com (Postfix) with ESMTPSA id 587C33733A; Thu, 12 Feb 2015 17:36:55 -0500 (EST) Content-Type: text/plain; charset=windows-1252 Mime-Version: 1.0 (Mac OS X Mail 7.3 \(1878.6\)) Subject: Re: System clock falls behind quickly on Mac mini G4 From: Rick Thomas Date: Thu, 12 Feb 2015 14:36:52 -0800 Content-Transfer-Encoding: quoted-printable Message-Id: <9BE10E2F-D281-4E4F-9575-1A41F61AA068@pobox.com> To: FreeBSD PowerPC ML X-Mailer: Apple Mail (2.1878.6) X-Pobox-Relay-ID: A603BDB6-B307-11E4-8A8A-8FDD009B7A5A-02150157!pb-sasl1.pobox.com Cc: danfe@nsu.ru X-BeenThere: freebsd-ppc@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Porting FreeBSD to the PowerPC List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 12 Feb 2015 22:36:58 -0000 Hi! Did you ever get a solution for this? I=92m having the same problem on = a PowerMac G4 =93quicksilver=94 machine. Thanks! Rick > On Tue, Apr 08, 2014 at 10:41:44AM -0400, John Baldwin wrote: > > It wouldn=92t be tsc_freq on a powerpc box. You'd need to see what = your > > time counter is and what frequency it is using (kern.timecounter = nodes) > > and see if that is adjustable. >=20 > Yup, sorry; I forgot that our TSC maps to actual x86 Time Stamp = Counter, > not being some aggregated MI relatively high-precision time keeping = thing. >=20 > Does not look I can do much about it though: >=20 > $ sysctl kern.timecounter > kern.timecounter.fast_gettime: 1 > kern.timecounter.tick: 2 > kern.timecounter.choice: timebase(0) dummy(-1000000) > kern.timecounter.hardware: timebase > kern.timecounter.alloweddeviation: 5 > kern.timecounter.stepwarnings: 0 > kern.timecounter.tc.timebase.mask: 4294967295 > kern.timecounter.tc.timebase.counter: 3224483187 > kern.timecounter.tc.timebase.frequency: 41620907 > kern.timecounter.tc.timebase.quality: 0 >=20 > ./danfe