From owner-freebsd-virtualization@FreeBSD.ORG Sun Jun 8 20:15:29 2014 Return-Path: Delivered-To: freebsd-virtualization@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 96C577D0; Sun, 8 Jun 2014 20:15:29 +0000 (UTC) Received: from smtp.digiware.nl (unknown [IPv6:2001:4cb8:90:ffff::3]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 50E6E251E; Sun, 8 Jun 2014 20:15:29 +0000 (UTC) Received: from rack1.digiware.nl (unknown [127.0.0.1]) by smtp.digiware.nl (Postfix) with ESMTP id 61D9E153448; Sun, 8 Jun 2014 22:15:25 +0200 (CEST) X-Virus-Scanned: amavisd-new at digiware.nl Received: from smtp.digiware.nl ([127.0.0.1]) by rack1.digiware.nl (rack1.digiware.nl [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id qhYtoMbxYbtC; Sun, 8 Jun 2014 22:15:23 +0200 (CEST) Received: from [IPv6:2001:4cb8:3:1:7193:98fc:d209:62d3] (unknown [IPv6:2001:4cb8:3:1:7193:98fc:d209:62d3]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by smtp.digiware.nl (Postfix) with ESMTPSA id 8D8AB153434; Sun, 8 Jun 2014 22:15:23 +0200 (CEST) Message-ID: <5394C45B.2030608@digiware.nl> Date: Sun, 08 Jun 2014 22:15:23 +0200 From: Willem Jan Withagen User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.5.0 MIME-Version: 1.0 To: Peter Grehan Subject: Re: Bheve: Slow linux syscalls on AMD References: <5388B56D.1000501@digiware.nl> <20140530212900.6B74B6BF@hub.freebsd.org> <53891BC1.9050701@digiware.nl> <53891EAA.8040105@freebsd.org> <538927FC.3000903@digiware.nl> <53939AE2.80804@freebsd.org> <539434B6.6020804@digiware.nl> <5394817F.4030203@digiware.nl> <53948DA5.4040000@digiware.nl> <53948E1C.2020408@freebsd.org> In-Reply-To: <53948E1C.2020408@freebsd.org> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: FreeBSD virtualization X-BeenThere: freebsd-virtualization@freebsd.org X-Mailman-Version: 2.1.18 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: Sun, 08 Jun 2014 20:15:29 -0000 On 8-6-2014 18:23, Peter Grehan wrote: >> Still seeing that a 2 CPU VM is using about 100% of 1 cpu when idleing, >> but that is another minor challenge. > > I know what that one is: should have a fix shortly. I've done some of the syscall tests, like before. getuid(2) is now down to 350 nsec... Running the same on the bare metal with FreeBSD gives 140 nsec.... So I can't be complaining.... Comparing umask(2) is more the same: 151 nsec versus VM linux: 364 nsec --WjW