From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gary Thomas Subject: Framebuffer console performance Date: Thu, 24 Mar 2005 15:14:48 -0700 Message-ID: <1111702489.29791.216.camel@hermes> Reply-To: linux-fbdev-devel@lists.sourceforge.net Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Received: from sc8-sf-mx2-b.sourceforge.net ([10.3.1.12] helo=sc8-sf-mx2.sourceforge.net) by sc8-sf-list1.sourceforge.net with esmtp (Exim 4.30) id 1DEabV-0005LV-6R for linux-fbdev-devel@lists.sourceforge.net; Thu, 24 Mar 2005 14:15:01 -0800 Received: from sta-206-168-96-204.rockynet.com ([206.168.96.204] helo=hermes.chez-thomas.org) by sc8-sf-mx2.sourceforge.net with esmtp (Exim 4.41) id 1DEabT-0002Ex-Kd for linux-fbdev-devel@lists.sourceforge.net; Thu, 24 Mar 2005 14:15:01 -0800 Sender: linux-fbdev-devel-admin@lists.sourceforge.net Errors-To: linux-fbdev-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Id: List-Post: List-Help: List-Subscribe: , List-Archive: Content-Type: text/plain; charset="us-ascii" To: linux-fbdev-devel@lists.sourceforge.net I have a non-standard framebuffer (i.e. I wrote the driver, based on the au1000 driver) running on 2.4.27. When I run virtual consoles on it, I see sluggish scroll performance. I get quite acceptable performance when the system first comes up, e.g. during the system initialization messages, but not long afterwards the scrolling slows down. It can get continually worse, eventually ending up at a crawl. This is a memory limited embedded system, but I do not have any swapping going on. Ideas or hints where I might look? Thanks for your time. n.b. I'm not subscribed to this list, so please CC my direct email address when replying. -- ------------------------------------------------------------ Gary Thomas | Consulting for the MLB Associates | Embedded world ------------------------------------------------------------ ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click