From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from metis.ext.pengutronix.de ([2001:6f8:1178:4:290:27ff:fe1d:cc33]) by merlin.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1TYuA0-0004Fu-2I for barebox@lists.infradead.org; Thu, 15 Nov 2012 07:46:52 +0000 Date: Thu, 15 Nov 2012 08:46:50 +0100 From: Sascha Hauer Message-ID: <20121115074650.GT10369@pengutronix.de> References: <4801591.VRVUpK1jDH@linux-xmcx> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <4801591.VRVUpK1jDH@linux-xmcx> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="iso-8859-15" Content-Transfer-Encoding: quoted-printable Sender: barebox-bounces@lists.infradead.org Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: Re: TX53-8030 Memory Speed To: =?iso-8859-15?Q?G=FCnter?= Gebhardt Cc: barebox@lists.infradead.org On Thu, Nov 15, 2012 at 07:59:22AM +0100, G=FCnter Gebhardt wrote: > Hello, > = > we integrated KARO TX53-8030 support into our barebox 2012.07.0 some mont= h = > ago. > = > We measured the performance of memcpy() and found that the throughput is = only = > 19MB/s. We expected it to be something like 10 times faster. > = > We saw that there is support for the TX-53 in general within the head of = > barebox. > = > Within the file arch/arm/boards/karo-tx53/flash_header.c it = > is stated that it only supports TX53 1011 (i.e. 1GB RAM). Support for the TX53-8030 is currently in the -next branch, but unfortunately it doesn't seem to work properly, see this thread: http://lists.infradead.org/pipermail/barebox/2012-November/010983.html > = > Do You have settings applicable to our device? = > = > What throughput do You expect from this device? = Just rechecked on my 1011 board (I can't find the 8030 board atm, otherwise I would have fixed the support already), it's about 230MB/s using memcpy on the commandline. Probably you don't have the MMU turned on which means you're running without data chaches. Sascha -- = Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox