From owner-freebsd-stable@FreeBSD.ORG Sat Jan 21 13:30:14 2012 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id BCFA7106573F for ; Sat, 21 Jan 2012 13:30:14 +0000 (UTC) (envelope-from mavbsd@gmail.com) Received: from mail-ey0-f182.google.com (mail-ey0-f182.google.com [209.85.215.182]) by mx1.freebsd.org (Postfix) with ESMTP id 4F6458FC16 for ; Sat, 21 Jan 2012 13:30:13 +0000 (UTC) Received: by eaai10 with SMTP id i10so611769eaa.13 for ; Sat, 21 Jan 2012 05:30:13 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=sender:message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:content-type:content-transfer-encoding; bh=gQeEzzaHChgAxGfrUP3W/vSbas1gNoaL8+pw3j8KPPY=; b=dtCtBcwOnJBxmxKWsHy3Z64lS1B+bVfqm24LRT43dRBfL+gBWHrRZidsR7hDDevWBc HSWXaz823o52dCfPI8DeFLR8QqIxNZb8r+UmG4zRdwRh1M+5DE1hb/FuqcqPbW/XoWiN ueMcU0WoYeN2wS/M0zmYviij5uQg1phcbuzXc= Received: by 10.213.29.11 with SMTP id o11mr426306ebc.57.1327152613254; Sat, 21 Jan 2012 05:30:13 -0800 (PST) Received: from mavbook2.mavhome.dp.ua (pc.mavhome.dp.ua. [212.86.226.226]) by mx.google.com with ESMTPS id c16sm25702062eei.1.2012.01.21.05.30.11 (version=SSLv3 cipher=OTHER); Sat, 21 Jan 2012 05:30:12 -0800 (PST) Sender: Alexander Motin Message-ID: <4F1ABDE2.5070904@FreeBSD.org> Date: Sat, 21 Jan 2012 15:30:10 +0200 From: Alexander Motin User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:9.0) Gecko/20111227 Thunderbird/9.0 MIME-Version: 1.0 To: Martin Sugioarto References: <20120118075049.289954e8@zelda.sugioarto.com> <4F1AAFFD.7070303@FreeBSD.org> <20120121142040.1805e2ed@zelda.sugioarto.com> In-Reply-To: <20120121142040.1805e2ed@zelda.sugioarto.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: FreeBSD-STABLE Mailing List Subject: Re: Timekeeping in stable/9 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 21 Jan 2012 13:30:14 -0000 On 01/21/12 15:20, Martin Sugioarto wrote: > Am Sat, 21 Jan 2012 14:30:53 +0200 > schrieb Alexander Motin: >> I am not using VirtualBox right now, so I'll need to setup it to test >> this. Meanwhile you could try to experiment with switching to >> different timecounters and eventtimers. May be some change in 9.0 >> changed default timecounter for you, causing the problem. > > I think we have a misunderstanding here. The host (FreeBSD 9.0R) works > fine. The time is being updated under heavy load without problems. > > I already said that this seems to be an application problem and this > email(s) should be rather seen by the VBox maintainer. The problem is > that VBox seems to stop working properly when you put heavy CPU load on > the host. It even does not keep the clock up-to-date. > > I can desync the guest clock to -1 minute in a few seconds, just by > running "openssl speed -multi 20". Ah. I'm sorry. I was sure we are debugging FreeBSD inside VirtualBox. If we are speaking about FreeBSD outside, then neither timecounter nor eventtimer choice should not affect guest if host is working fine. It is more question to VirtualBox and may be host system scheduler. -- Alexander Motin