From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S268957AbUHUJpX (ORCPT ); Sat, 21 Aug 2004 05:45:23 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S268958AbUHUJpX (ORCPT ); Sat, 21 Aug 2004 05:45:23 -0400 Received: from mx2.elte.hu ([157.181.151.9]:28318 "EHLO mx2.elte.hu") by vger.kernel.org with ESMTP id S268957AbUHUJpV (ORCPT ); Sat, 21 Aug 2004 05:45:21 -0400 Date: Sat, 21 Aug 2004 11:46:50 +0200 From: Ingo Molnar To: Lee Revell Cc: linux-kernel , Thomas Charbonnel , Florian Schmidt , Felipe Alfaro Solana , Mark_H_Johnson@raytheon.com Subject: Re: [patch] voluntary-preempt-2.6.8.1-P6 Message-ID: <20040821094650.GA28525@elte.hu> References: <1092654819.5057.18.camel@localhost> <20040816113131.GA30527@elte.hu> <20040816120933.GA4211@elte.hu> <1092716644.876.1.camel@krustophenia.net> <20040817080512.GA1649@elte.hu> <20040819073247.GA1798@elte.hu> <20040820133031.GA13105@elte.hu> <20040820195540.GA31798@elte.hu> <1093059838.854.11.camel@krustophenia.net> <20040821091036.GA25864@elte.hu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20040821091036.GA25864@elte.hu> User-Agent: Mutt/1.4.1i X-ELTE-SpamVersion: MailScanner 4.31.6-itk1 (ELTE 1.2) SpamAssassin 2.63 ClamAV 0.73 X-ELTE-VirusStatus: clean X-ELTE-SpamCheck: no X-ELTE-SpamCheck-Details: score=-4.9, required 5.9, autolearn=not spam, BAYES_00 -4.90 X-ELTE-SpamLevel: X-ELTE-SpamScore: -4 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org * Ingo Molnar wrote: > but the XFree86 latency is interesting indeed. It could be the effect > of the now-enlarged ioperm() bitmap! 80 usecs is excessive. yeah, that's the reason. The quick fix is to reduce IO_BITMAP_BITS to 1024 in include/asm-i386/processor.h. I'm working on a real fix. Ingo