From owner-freebsd-virtualization@FreeBSD.ORG  Sat May 31 00:22:06 2014
Return-Path: <owner-freebsd-virtualization@FreeBSD.ORG>
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 C86DFBA3
 for <freebsd-virtualization@freebsd.org>; Sat, 31 May 2014 00:22:06 +0000 (UTC)
Received: from alto.onthenet.com.au (alto.OntheNet.com.au [203.13.68.12])
 by mx1.freebsd.org (Postfix) with ESMTP id 8B0FE2F35
 for <freebsd-virtualization@freebsd.org>; Sat, 31 May 2014 00:22:06 +0000 (UTC)
Received: from dommail.onthenet.com.au (dommail.OntheNet.com.au [203.13.70.57])
 by alto.onthenet.com.au (Postfix) with ESMTPS id 8E3B2125F7;
 Sat, 31 May 2014 10:13:32 +1000 (EST)
Received: from Peter-Grehans-MacBook-Pro-2.local ([64.245.0.210])
 by dommail.onthenet.com.au (MOS 4.2.4-GA)
 with ESMTP id BUQ40034 (AUTH peterg@ptree32.com.au);
 Sat, 31 May 2014 10:13:31 +1000
Message-ID: <53891EAA.8040105@freebsd.org>
Date: Fri, 30 May 2014 17:13:30 -0700
From: Peter Grehan <grehan@freebsd.org>
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6;
 rv:24.0) Gecko/20100101 Thunderbird/24.5.0
MIME-Version: 1.0
To: Willem Jan Withagen <wjw@digiware.nl>
Subject: Re: Bheve: Slow linux syscalls on AMD
References: <5388B56D.1000501@digiware.nl>
 <20140530212900.6B74B6BF@hub.freebsd.org> <53891BC1.9050701@digiware.nl>
In-Reply-To: <53891BC1.9050701@digiware.nl>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Cc: freebsd-virtualization@freebsd.org
X-BeenThere: freebsd-virtualization@freebsd.org
X-Mailman-Version: 2.1.18
Precedence: list
List-Id: "Discussion of various virtualization techniques FreeBSD supports."
 <freebsd-virtualization.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-virtualization>, 
 <mailto:freebsd-virtualization-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-virtualization/>
List-Post: <mailto:freebsd-virtualization@freebsd.org>
List-Help: <mailto:freebsd-virtualization-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-virtualization>, 
 <mailto:freebsd-virtualization-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sat, 31 May 2014 00:22:06 -0000

Hi Willem,

> So the question remains:
> 	Why is it taking so long on the AMD platform.

  The time difference looks a lot like a VM-exit roundtrip. My new AMD 
box is arriving shortly so I'll have a look into it.

later,

Peter.