From owner-freebsd-stable@FreeBSD.ORG Sun May 31 16:00:27 2009 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 4EFFE1065672 for ; Sun, 31 May 2009 16:00:27 +0000 (UTC) (envelope-from freebsd-stable@pp.dyndns.biz) Received: from proxy2.bredband.net (proxy2.bredband.net [195.54.101.72]) by mx1.freebsd.org (Postfix) with ESMTP id 0426A8FC12 for ; Sun, 31 May 2009 16:00:26 +0000 (UTC) (envelope-from freebsd-stable@pp.dyndns.biz) Received: from ironport2.bredband.com (195.54.101.122) by proxy2.bredband.net (7.3.140.3) id 49F59CBD00D802A3 for freebsd-stable@freebsd.org; Sun, 31 May 2009 18:00:25 +0200 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AlAFAF5GIkpV4juSPGdsb2JhbACBT5Y8AQEBAbUlhAwF X-IronPort-AV: E=Sophos;i="4.41,279,1241388000"; d="scan'208";a="495239726" Received: from c-923be255.107-1-64736c10.cust.bredbandsbolaget.se (HELO gatekeeper.pp.dyndns.biz) ([85.226.59.146]) by ironport2.bredband.com with ESMTP; 31 May 2009 18:00:25 +0200 Received: from [192.168.69.67] (phobos [192.168.69.67]) by gatekeeper.pp.dyndns.biz (8.14.3/8.14.3) with ESMTP id n4VG0No8057626 for ; Sun, 31 May 2009 18:00:24 +0200 (CEST) (envelope-from freebsd-stable@pp.dyndns.biz) Message-ID: <4A22A997.7080507@pp.dyndns.biz> Date: Sun, 31 May 2009 18:00:23 +0200 From: =?UTF-8?B?TW9yZ2FuIFdlc3N0csO2bQ==?= User-Agent: Thunderbird 2.0.0.21 (X11/20090430) MIME-Version: 1.0 To: freebsd-stable@freebsd.org References: <4A1FAB45.4040904@h3q.com> <4A1FBD4A.5080204@pp.dyndns.biz> <20090531153953.GE18676@acme.spoerlein.net> In-Reply-To: <20090531153953.GE18676@acme.spoerlein.net> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Subject: Re: ZFS on top of GELI / Intel Atom 330 system X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 31 May 2009 16:00:27 -0000 > Hi Morgan, > > thanks for the nice benchmarking trick. I tried this on two ~7.2 > systems: > > CPU: Intel Pentium III (996.77-MHz 686-class CPU) > -> 14.3MB/s > > CPU: Intel(R) Pentium(R) 4 CPU 2.80GHz (2793.01-MHz 686-class CPU) > -> 47.5MB/s > > Reading a big file from the pool of this P4 results in 27.6MB/s netto > transfer rate (single 7200 rpm SATA disk). > > I would be *very* interested in numbers from the dual core Atom, both > with 2 CPUs and with 1 active core only. I think that having dual core > is a must for this setup, so you can use 2 GELI threads and have the ZFS > threads on top of that to spread the load. > > Cheers, > Ulrich Spörlein Credit to pjd@ actually. Picked up the trick myself from freebsd-geom some time ago :-) http://lists.freebsd.org/pipermail/freebsd-geom/2007-July/002498.html My Eee PC with a single core N270 is being repaired atm, it suffered a bad BIOS flash so I can't help you with benchmarks until it's back. I don't have access to another Atom CPU unfortunately. /Morgan