From owner-freebsd-xen@FreeBSD.ORG Wed Jun 19 16:52:14 2013 Return-Path: Delivered-To: freebsd-xen@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) by hub.freebsd.org (Postfix) with ESMTP id ABF04CAF; Wed, 19 Jun 2013 16:52:14 +0000 (UTC) (envelope-from gibbs@FreeBSD.org) Received: from aslan.scsiguy.com (mail.scsiguy.com [70.89.174.89]) by mx1.freebsd.org (Postfix) with ESMTP id 670731FA4; Wed, 19 Jun 2013 16:52:14 +0000 (UTC) Received: from [192.168.6.155] (207-225-98-3.dia.static.qwest.net [207.225.98.3]) (authenticated bits=0) by aslan.scsiguy.com (8.14.7/8.14.5) with ESMTP id r5JGq9XQ018695 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NO); Wed, 19 Jun 2013 16:52:09 GMT (envelope-from gibbs@FreeBSD.org) Content-Type: text/plain; charset=windows-1252 Mime-Version: 1.0 (Mac OS X Mail 6.5 \(1508\)) Subject: Re: FreeBSD PVHVM call for testing From: "Justin T. Gibbs" In-Reply-To: <546D0358-4F92-4E8C-AED0-94FC5D36086F@dckd.nl> Date: Wed, 19 Jun 2013 10:52:06 -0600 Content-Transfer-Encoding: quoted-printable Message-Id: References: <519131D8.9010307@citrix.com> <519E54DE.5090304@citrix.com> <51B5E730.6070007@citrix.com> <51B9FF53.2020901@citrix.com> <2C70BC9B-5964-498F-AAE2-E5024160E3E5@dckd.nl> <51C1972B.50703@citrix.com> <51C1A223.6030305@citrix.com> <6E99C9B2-E28D-4793-81C2-97440AC5AD0E@dckd.nl> <51C1A7AA.2010307@citrix.com> <546D0358-4F92-4E8C-AED0-94FC5D36086F@dckd.nl> To: Jeroen van der Ham X-Mailer: Apple Mail (2.1508) X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.4.3 (aslan.scsiguy.com [70.89.174.89]); Wed, 19 Jun 2013 16:52:09 +0000 (UTC) Cc: freebsd-xen@freebsd.org, xen-users@lists.xen.org, xen-devel , freebsd-virtualization@freebsd.org X-BeenThere: freebsd-xen@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Discussion of the freebsd port to xen - implementation and usage List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 19 Jun 2013 16:52:14 -0000 On Jun 19, 2013, at 10:50 AM, Jeroen van der Ham wrote: > Hi, >=20 > On 19 Jun 2013, at 18:15, Justin T. Gibbs wrote: >>=20 >> I've never seen a kernel build take 2 hours, much less 2 hours = *longer*. Are you talking about buildworld? It would be interesting to = know your results building stable/9 sources in your 10 environment to = see if this is just due to "build bloat" or a true performance = regression. >>=20 >=20 > I copy/pasted the command from the wiki: >=20 >> # make kernel-toolchain && make buildkernel KERNCONF=3DXENHVM && make = installkernel KERNCONF=3DXENHVM >=20 > On the stable/9 I only did=20 >=20 >> make buildkernel KERNCONF=3DXENHVM && make installkernel = KERNCONF=3DXENHVM >=20 >=20 > I guess the kernel-toolchain takes a long time to build=85and from = what I can see it does a clean before rebuilding also. >=20 > I'm doing the kernel-toolchain step only now and will report how long = it took. >=20 > Jeroen. Oh. Without any parallelism (-j X), the build will take a really long = time. Even with only one core, you'll get a large speedup by performing = a parallel build since many steps of the build are I/O bound. -- Justin=