From owner-freebsd-stable@freebsd.org Tue Aug 30 10:13:23 2016 Return-Path: Delivered-To: freebsd-stable@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 38029B7888C for ; Tue, 30 Aug 2016 10:13:23 +0000 (UTC) (envelope-from lukasz@wasikowski.net) Received: from mail.freebsd.systems (mail.freebsd.systems [IPv6:2001:41d0:2:1276::1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id CA4AABD0 for ; Tue, 30 Aug 2016 10:13:22 +0000 (UTC) (envelope-from lukasz@wasikowski.net) Received: from mail.freebsd.systems (mail.freebsd.systems [IPv6:2001:41d0:2:1276::1]) by mail.freebsd.systems (Postfix) with ESMTP id DB2CCC2E for ; Tue, 30 Aug 2016 12:13:20 +0200 (CEST) X-Virus-Scanned: amavisd-new at freebsd.systems Received: from mail.freebsd.systems ([5.196.167.1]) by mail.freebsd.systems (scan.freebsd.systems [5.196.167.1]) (amavisd-new, port 10026) with ESMTP id r7d1N5piH9TI for ; Tue, 30 Aug 2016 12:13:20 +0200 (CEST) Received: from [192.168.138.100] (unknown [194.181.86.74]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.freebsd.systems (Postfix) with ESMTPSA id 3C5D2C2B for ; Tue, 30 Aug 2016 12:13:20 +0200 (CEST) Authentication-Results: mail.freebsd.systems; dmarc=none header.from=wasikowski.net Authentication-Results: mail.freebsd.systems; spf=pass smtp.mailfrom=lukasz@wasikowski.net DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=wasikowski.net; s=default; t=1472552000; bh=Nf8vQMSeaAC/kMcrMG+kmK4WESX2zvpgNQxGn6kU2Ao=; h=References:Cc:From:Date:In-Reply-To; b=uUHZWGghA7BtvhKrOuZ6dlKr+0QLZsOcUDtH2/4GCCyd0U7bW5qRI/LjiYKVE5KWe Y0RKzO95paRX7eOECznRbouSCejnVxQikip+2SGhCzq5EpZORFO8s5YZPmobiOmx11 y6gNJHHQ82gJhJorNHFuAavlZRtsku27D3mw01DrKygA0GQrIZWnLi9CXoKVRBYsD9 EuRSPSCzHgWlw0jP8JRQZflFO6x3LgAFZudcdZr49Uuz4rV702XuJ5K82p1vcfkcGG p/BNRdh45nUifbjY1zYRVrSmUV0YpE43Br6msEnfP/WgdxoghzdTt+LpPBgpeCOV8B mCwkl0xUfyH/A== Subject: Re: Benchmarks results for Compilers on FreeBSD 11 References: <20160819073422.4292997b@X220.alogt.com> <20160821144505.27c0f55d@X220.alogt.com> <827183a944ee4052649c152d65204444@schema31.it> <20160822101423.GF18643@e-new.0x20.net> <20160822120215.GV22212@zxy.spb.ru> <20160823110159.GU18643@e-new.0x20.net> <20160824045558.18c86764@X220.alogt.com> <3234db29c228879cc473deec0b09568c@schema31.it> <20160826132059.63c23ee5@X220.alogt.com> <20160828060601.08ea91a8@X220.alogt.com> <20160830074656.18bfaf05@X220.alogt.com> <63d785a50de7d9a4842a4d5e32b0414d@schema31.it> Cc: freebsd-stable From: =?UTF-8?Q?=c5=81ukasz_W=c4=85sikowski?= Message-ID: Date: Tue, 30 Aug 2016 12:13:17 +0200 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.2.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 8bit X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.22 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, 30 Aug 2016 10:13:23 -0000 W dniu 2016-08-30 o 11:35, Fernando Herrero Carrón pisze: > 2016-08-30 9:04 GMT+02:00 Andrea Brancatelli : > >> >> >> Il 2016-08-30 05:51 K. Macy ha scritto: >> >> I can't speak for the whole universe of users, but I think it's safe >> to say that most users are not power users who individually configure >> ports tailored to their needs. I think my experiences on Ubuntu, where >> I'm definitely not a power user, are illustrative. I never compile >> *anything* that has a package in an ubuntu repo and I assume that the >> packages are configured when built to enable any performance options >> that don't potentially cause stability issues. Similarly, on FreeBSD >> most users are going to be using packages and they're going to assume >> that the packages are configured to "provide the best user >> experience". Consequently anyone using a package that could use OpenMP >> is going to legitimately just assume that "X" is slower on FreeBSD. >> And for all intents and purposes "X" _is_ slower. >> >> >> I second this 100%. >> >> If anyone thinks that this is not the "correct" approach then I don't see >> the point of the PKG project as a whole. >> > > I would also vote for "best performance per default". On a second thought, > this would actually mean "average performance per default", because we > should be conservative as to what optimizations are enabled that still work > on older CPUs. I would say enabling all those compiler optimizations would > be a safe bet (simply going from -O to -O2). +1 to that. I'd love to see FreeBSD performance superior to Linux, but even a little worse than Linux would still be ok. Unfortunatelly that "little worse" gap is growing. -- best regards, Lukasz Wasikowski