From owner-freebsd-stable@freebsd.org Tue May 15 02:59:57 2018 Return-Path: Delivered-To: freebsd-stable@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id A07EDEC833F for ; Tue, 15 May 2018 02:59:57 +0000 (UTC) (envelope-from julian@freebsd.org) Received: from vps1.elischer.org (vps1.elischer.org [204.109.63.16]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "vps1.elischer.org", Issuer "CA Cert Signing Authority" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 3FB557F738 for ; Tue, 15 May 2018 02:59:56 +0000 (UTC) (envelope-from julian@freebsd.org) Received: from Julian-MBP3.local (124-148-66-42.dyn.iinet.net.au [124.148.66.42]) (authenticated bits=0) by vps1.elischer.org (8.15.2/8.15.2) with ESMTPSA id w4F2xnXH080860 (version=TLSv1.2 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO); Mon, 14 May 2018 19:59:54 -0700 (PDT) (envelope-from julian@freebsd.org) Subject: Re: Spectre/Meltdown mitigation in 11.1-p10 bogging down zfs send/receive? To: "Patrick M. Hausen" , freebsd-stable Cc: mops@punkt.de References: <39DC78FE-D56E-4E7F-8F86-28C0ACAD761F@punkt.de> From: Julian Elischer Message-ID: <35cc1fd6-4667-8a27-47ec-f98676641bcd@freebsd.org> Date: Tue, 15 May 2018 10:59:44 +0800 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:52.0) Gecko/20100101 Thunderbird/52.7.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 15 May 2018 02:59:57 -0000 On 14/5/18 11:48 pm, Patrick M. Hausen wrote: > Hi! > >> Am 14.05.2018 um 17:35 schrieb Patrick M. Hausen : >> Possibly we are on the wrong track altogether. > We were - please just forget it ... Isn't it a fact that you will always discover your own problem immediately after posting for help from the entire world? I'm sure it is a corollary to Murphy's law. > > ZFS scrub running during our activity ... everybody who already put > more than five minutes of thought into this deserves a beer at the next > EuroBSDCon ;-) > > Patrick