From owner-freebsd-arm@FreeBSD.ORG Fri May 15 22:03:31 2015 Return-Path: Delivered-To: freebsd-arm@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 8DDAB57C for ; Fri, 15 May 2015 22:03:31 +0000 (UTC) Received: from olinguito.schwarzes.net (olinguito.schwarzes.net [IPv6:2a01:4f8:7d:1b5::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 24D211A68 for ; Fri, 15 May 2015 22:03:30 +0000 (UTC) Received: from asc-t60.schwarzes.net (p5B031591.dip0.t-ipconnect.de [91.3.21.145]) (authenticated bits=0) by olinguito.schwarzes.net (8.14.9/8.14.9) with ESMTP id t4FM3S9q017744 for ; Sat, 16 May 2015 00:03:28 +0200 (CEST) (envelope-from freebsd.asc@strcmp.org) Date: Sat, 16 May 2015 00:03:15 +0200 From: Andreas Schwarz To: freebsd-arm@freebsd.org Subject: Re: Performance issues with raspberry pi 2 Message-Id: <20150516000315.45feccfca08f5235d26ea071@strcmp.org> In-Reply-To: References: <3AB5ECCF20894591B4DF5FCBA8CA49BB@ad.peach.ne.jp> X-Mailer: Sylpheed 3.4.2 (GTK+ 2.10.14; i686-pc-mingw32) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.4.3 (olinguito.schwarzes.net [78.47.41.143]); Sat, 16 May 2015 00:03:28 +0200 (CEST) X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: "Porting FreeBSD to ARM processors." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 15 May 2015 22:03:31 -0000 On Fri, 15 May 2015 10:46:45 -0700 Adrian Chadd wrote: > What's sysctl dev.cpu.0 show? Does it correctly step the CPU up to 900MHz? For "production equipment" it's recommended to use the powerd. Have a look at the recent posting from Daisuke Aoyama. At the moment I'm a little bit afraid about the temperature when steping up manually to 900 MHz (and using all the cores). I've no cooling fan and don't want to use one. -- best regards Andreas