From owner-freebsd-questions@FreeBSD.ORG Wed Oct 23 02:55:48 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 B1A49942; Wed, 23 Oct 2013 02:55:48 +0000 (UTC) (envelope-from adrian.chadd@gmail.com) Received: from mail-qc0-x230.google.com (mail-qc0-x230.google.com [IPv6:2607:f8b0:400d:c01::230]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 5D6E32AA6; Wed, 23 Oct 2013 02:55:48 +0000 (UTC) Received: by mail-qc0-f176.google.com with SMTP id s19so123617qcw.21 for ; Tue, 22 Oct 2013 19:55:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date:message-id:subject :from:to:cc:content-type; bh=Pka2NzVQ4vuqqoKDiGDmJzqzbHE3hzWFpADmKAmMj28=; b=GOQgcVMc2HFaMR1FhDvN9CMx6GojHuF2UYBIkCe2R5IcxcfL2G9GqykXJsCZcDxPgm crcgoEEb3W3C7dhUU+sCtbWQx3520N58IXWY4fb3VTG93wcDzmVIz88v8DNykRWeCGv/ qe76tv/+F6zaaqET1yUGzD/KyeH8EgIXM1on21N248ElkYweZ2lmS/cabKEdiSAfIFIM xd1EsvfPvOFJEi8PKbIBtJxtHXcoQ6XVs/TK/VkVwkLUq7U5IusiYNsw7BqdbQ/xDSuj VcWJvw9Bh0F2cXJNauEuqw+P4/afqEmQ+woT4gf2waQFr5gKp84KLKUDM4zd64gkfnUV n4lg== MIME-Version: 1.0 X-Received: by 10.224.4.133 with SMTP id 5mr977762qar.73.1382496947479; Tue, 22 Oct 2013 19:55:47 -0700 (PDT) Sender: adrian.chadd@gmail.com Received: by 10.224.207.66 with HTTP; Tue, 22 Oct 2013 19:55:47 -0700 (PDT) In-Reply-To: <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> <25C055B9-4A19-46C8-B78E-AC8BD6E00CD9@gmail.com> Date: Tue, 22 Oct 2013 19:55:47 -0700 X-Google-Sender-Auth: RYCHsewflwj573n3rZZr0fWwPj8 Message-ID: Subject: Re: FreeBSD, Centos and ZFS - SOLVED From: Adrian Chadd To: aurfalien Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.14 Cc: FreeBSD Questions 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: Wed, 23 Oct 2013 02:55:48 -0000 Well, the 30% diff in performance due to those two intel CPU options means that somehow the scheduler and power management stuff in FreeBSD isn't playing with turbo boost / speedstep. So yeah, figuring out why would be nice. -adrian On 22 October 2013 16:40, aurfalien wrote: > > On Oct 20, 2013, at 9:04 AM, Mark Felder wrote: > > > On Sat, Oct 19, 2013, at 14:31, aurfalien wrote: > >> > >> 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. > >> > > > > FreeBSD 10 also has L2ARC compression > > > > http://svnweb.freebsd.org/base?view=revision&revision=251478 > > 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 > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to " > freebsd-questions-unsubscribe@freebsd.org" >