From owner-freebsd-questions@FreeBSD.ORG Tue Oct 22 23:40:36 2013 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id A0D836DA; Tue, 22 Oct 2013 23:40:36 +0000 (UTC) (envelope-from aurfalien@gmail.com) Received: from mail-pd0-x235.google.com (mail-pd0-x235.google.com [IPv6:2607:f8b0:400e:c02::235]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 718C620FE; Tue, 22 Oct 2013 23:40:36 +0000 (UTC) Received: by mail-pd0-f181.google.com with SMTP id y13so56043pdi.40 for ; Tue, 22 Oct 2013 16:40:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=subject:mime-version:content-type:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=UvAgY8piu0MNVWMvMaZIl7PZzb3Yzd1ZluGKIqSFNz0=; b=0weuEAInynMdFzgLsJGPppl/0PcxxziG1JLNpMlJQJkDXwf+3kWe+odPwgA0VxJ/jz qH40tMHeoWLYvV8axu9aBmPu9egLVsWJo3eHPDqTi7xSiQXDvKw8gwnLqwTe5I7RHwzU sZzEm7SKvbgpHrudBVxqFRL4DqaT05VQEIv2P1BxUUNU2xcstl4HM4o2s5P3t9pXq6wo nf8SmJ1fFAMIzR+/qOcHJC3TOt4KdVibsuge4LR0ZUkpd0sOlLLRriwfZYZAW7GRcy1H nRWk9ZT6oGirDDOYbA6aFfQjiv5KD5KM6uz985EDvkVTyB5Dj1i5OqMG/NjEqehtn45T V4Lw== X-Received: by 10.68.244.2 with SMTP id xc2mr304690pbc.58.1382485236043; Tue, 22 Oct 2013 16:40:36 -0700 (PDT) Received: from briankrusicw.logan.tv ([64.17.255.138]) by mx.google.com with ESMTPSA id fe5sm293364pbc.32.2013.10.22.16.40.34 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Tue, 22 Oct 2013 16:40:34 -0700 (PDT) Subject: Re: FreeBSD, Centos and ZFS - SOLVED Mime-Version: 1.0 (Apple Message framework v1085) Content-Type: text/plain; charset=us-ascii From: aurfalien In-Reply-To: <1382285088.2462.36238881.1AA6BB17@webmail.messagingengine.com> Date: Tue, 22 Oct 2013 16:40:33 -0700 Content-Transfer-Encoding: quoted-printable Message-Id: <25C055B9-4A19-46C8-B78E-AC8BD6E00CD9@gmail.com> References: <1381600575.18393.33219025.5D7B78D0@webmail.messagingengine.com> <8CA809B3-1692-4760-A63F-9D7451EB49BD@gmail.com> <525D143B.50202@gmail.com> <1382285088.2462.36238881.1AA6BB17@webmail.messagingengine.com> To: Mark Felder X-Mailer: Apple Mail (2.1085) Cc: freebsd-questions@freebsd.org X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 22 Oct 2013 23:40:36 -0000 On Oct 20, 2013, at 9:04 AM, Mark Felder wrote: > On Sat, Oct 19, 2013, at 14:31, aurfalien wrote: >>=20 >> ZoL comes with a little interesting feature; arc2 compression, which = does >> seem to enhance performance all around. I disabled this in CentOS to >> level the playing field. >>=20 >=20 > FreeBSD 10 also has L2ARC compression >=20 > http://svnweb.freebsd.org/base?view=3Drevision&revision=3D251478 OMG, what a relief... the ~30% diff in performance was due to a BIOS = setting, in particular this one; Intel Turbo Boost Technology Enhanced Intel SpeedStep Tech I disabled both. In fact, FreeBSD is showing a tad better now then CentOS. I have files = if any one is interested in viewing. Thanks to all for the rather overwhelming response :) Actually it was good that hardly any one did as it forced me to debug = the old fashioned way :) - aurf=