Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751429AbWBZXCj (ORCPT ); Sun, 26 Feb 2006 18:02:39 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751427AbWBZXCj (ORCPT ); Sun, 26 Feb 2006 18:02:39 -0500 Received: from mustang.oldcity.dca.net ([216.158.38.3]:36022 "HELO mustang.oldcity.dca.net") by vger.kernel.org with SMTP id S1751425AbWBZXCg (ORCPT ); Sun, 26 Feb 2006 18:02:36 -0500 Subject: Re: old radeon latency problem still unfixed? From: Lee Revell To: Benjamin Herrenschmidt Cc: Arjan van de Ven , linux-kernel In-Reply-To: <1140994427.3982.11.camel@localhost.localdomain> References: <1140917787.24141.78.camel@mindpipe> <1140945232.2934.0.camel@laptopd505.fenrus.org> <1140982513.24141.118.camel@mindpipe> <1140988293.3982.8.camel@localhost.localdomain> <1140989489.24141.159.camel@mindpipe> <1140994427.3982.11.camel@localhost.localdomain> Content-Type: text/plain Date: Sun, 26 Feb 2006 18:02:31 -0500 Message-Id: <1140994951.24141.204.camel@mindpipe> Mime-Version: 1.0 X-Mailer: Evolution 2.5.91 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 597 Lines: 15 On Mon, 2006-02-27 at 09:53 +1100, Benjamin Herrenschmidt wrote: > Well... as soon as a 3d window appears, the server starts switching > all the time. there might be some spin loop in there remaining... But if the only lock taken in the radeon driver is the BKL, the SCHED_NORMAL X server should not be able to delay a SCHED_FIFO process right? Lee - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/