From owner-freebsd-virtualization@FreeBSD.ORG Thu Oct 2 13:34:48 2014 Return-Path: Delivered-To: freebsd-virtualization@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 EBDF074D for ; Thu, 2 Oct 2014 13:34:48 +0000 (UTC) Received: from mail.grem.de (outcast.grem.de [213.239.217.27]) by mx1.freebsd.org (Postfix) with SMTP id 56E272DA for ; Thu, 2 Oct 2014 13:34:47 +0000 (UTC) Received: (qmail 27270 invoked by uid 89); 2 Oct 2014 13:34:40 -0000 Received: from unknown (HELO bsd64.grem.de) (mg@grem.de@194.97.158.66) by mail.grem.de with ESMTPA; 2 Oct 2014 13:34:40 -0000 Date: Thu, 2 Oct 2014 15:34:40 +0200 From: Michael Gmelin To: Karl Pielorz Subject: Re: High load average inside idle FreeBSD guest running on bhyve Message-ID: <20141002153440.1b068577@bsd64.grem.de> In-Reply-To: <150732A9664399A7AA28EC57@Mail-PC.tdx.co.uk> References: <542D0785.8030909@borderworlds.dk> <150732A9664399A7AA28EC57@Mail-PC.tdx.co.uk> X-Mailer: Claws Mail 3.10.1 (GTK+ 2.24.22; amd64-portbld-freebsd10.0) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: freebsd-virtualization@freebsd.org X-BeenThere: freebsd-virtualization@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: "Discussion of various virtualization techniques FreeBSD supports." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 02 Oct 2014 13:34:49 -0000 On Thu, 02 Oct 2014 11:49:19 +0100 Karl Pielorz wrote: > > > --On 02 October 2014 10:06 +0200 Christian Laursen > wrote: > > > Hello > > > > I have a few bhyve instances running that all seem to have a higher > > load average than what would seem normal for a system that is idle. > > > > [snip] > > > > last pid: 6109; load averages: 0.41, 0.38, 0.39 up > > 1+14:27:48 09:56:25 > > Hi, > > I think this has been covered on other lists - and is apparently > "normal" (i.e. cosmetic). > > I've installed a number of FBSD10 boxes recently, and they all seem > to idle at around that (even when doing absolutely nothing) - I did > post about it and was told it was just cosmetic... It certainly seems > to be cosmetic. > > If it's the same issue - I'd guess it's not bhyve related... > > " > last pid: 1294; load averages: 0.42, 0.32, 0.27 > up 1+20:44:55 11:47:16 > 18 processes: 1 running, 17 sleeping > CPU: 0.0% user, 0.0% nice, 0.0% system, 0.1% interrupt, 99.9% idle > " > > That's from a bare metal amd64 10.0-RELEASE-p9 box with no services / > users on it. > > Thinking about it - we had the same 'symptom' on a Xen based FBSD 10 > box as well... For your bare metal box, could you send the output of vmstat -i ? I had the same issue on older boxes and it went away after setting hint.hpet.0.legacy_route=1 hint.attimer.0.clock=0 hint.atrtc.0.clock=0 in /boot/loader.conf (see hpet(4)). > > -Karl > > _______________________________________________ > freebsd-virtualization@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-virtualization > To unsubscribe, send any mail to > "freebsd-virtualization-unsubscribe@freebsd.org" -- Michael Gmelin