From owner-freebsd-performance@FreeBSD.ORG Sat Feb 18 18:00:41 2012 Return-Path: Delivered-To: performance@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id A9BBE1065672 for ; Sat, 18 Feb 2012 18:00:41 +0000 (UTC) (envelope-from flo@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id 8FB658FC13; Sat, 18 Feb 2012 18:00:41 +0000 (UTC) Received: from nibbler-wlan.fritz.box (localhost [127.0.0.1]) by freefall.freebsd.org (8.14.5/8.14.5) with ESMTP id q1II0dEx081594; Sat, 18 Feb 2012 18:00:40 GMT (envelope-from flo@FreeBSD.org) Message-ID: <4F3FE747.20300@FreeBSD.org> Date: Sat, 18 Feb 2012 19:00:39 +0100 From: Florian Smeets User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:11.0) Gecko/20120202 Thunderbird/11.0 MIME-Version: 1.0 To: "O. Hartmann" References: <4F247975.9050208@FreeBSD.org> <4F25165B.6080805@zedat.fu-berlin.de> In-Reply-To: <4F25165B.6080805@zedat.fu-berlin.de> X-Enigmail-Version: 1.4a1pre Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enigDA54D68EED2466F375203EAC" Cc: performance@FreeBSD.org Subject: Re: ULE vs. 4BSD scheduler benchmarks X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 18 Feb 2012 18:00:41 -0000 This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigDA54D68EED2466F375203EAC Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable On 29.01.12 10:50, O. Hartmann wrote: >=20 > We got a new workstation, two socket 6-core westmere XEON's, I forgot > the specifications, but they're driven with 2,66 GHz each and have > access to 96GB RAM. Maybe I can also setup some benchmarks, but I need > advice since I'm not a kernel GURU. > The box is prmarily running Linux due to the TESLA/GPGPU stuff we run o= n > it. A colleague of mine developend a software for huge satellite imager= y > correction needed in planetary science, the software is highly scalable= > (OpenMP) and massively using OpenCL, but using OpenCL could be switched= > off. We are not interested in database performance, but more in HPC > stuff and scientific calculations. I guess we could provode also some > benchmark results after a proper setup for the workload. Since this box= > in question is also running a Linux Ubuntu 11.04 server, I would be > interesting having a comparison to that. >=20 What you could do to help is you could give mav's latest ULE patches a try with your workload and could measure stock ULE vs. the patched one. http://people.freebsd.org/~mav/sched.htt40.patch I have tested it on head, it does apply to 9-STABLE, but i haven't tried to compile or run with it, but i think it should work. Florian --------------enigDA54D68EED2466F375203EAC Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iEYEARECAAYFAk8/50cACgkQapo8P8lCvwlhUACfVfCJoTFwIU79G+5XvZw3glT8 oKcAn3e26nbH8K0qXjIMnUGR+Lh2/mD6 =9yHh -----END PGP SIGNATURE----- --------------enigDA54D68EED2466F375203EAC--