Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Mon, 15 Jul 2002 06:59:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Mon, 15 Jul 2002 06:59:51 -0400 Received: from holomorphy.com ([66.224.33.161]:23720 "EHLO holomorphy") by vger.kernel.org with ESMTP id ; Mon, 15 Jul 2002 06:59:50 -0400 Date: Mon, 15 Jul 2002 04:01:35 -0700 From: William Lee Irwin III To: Russell King , linux-kernel@vger.kernel.org Subject: Re: Serial: updated serial drivers Message-ID: <20020715110135.GI21551@holomorphy.com> Mail-Followup-To: William Lee Irwin III , Russell King , linux-kernel@vger.kernel.org References: <20020707010009.C5242@flint.arm.linux.org.uk> <20020715100310.GF23693@holomorphy.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20020715100310.GF23693@holomorphy.com> User-Agent: Mutt/1.3.25i Organization: The Domain of Holomorphy Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 961 Lines: 23 On Sun, Jul 07, 2002 at 01:00:09AM +0100, Russell King wrote: >> I've been maintaining a serial driver "off the side" of the ARM port >> which cleans up the serial driver mess that we currently have, with >> many duplications of serial.c, each with subtle bugs. On Mon, Jul 15, 2002 at 03:03:10AM -0700, William Lee Irwin III wrote: > global_cli() overhead on my testbox is a significant problem. > Profile info from tbench 1024 with ttyS0 as stdout, taken on a 16 cpu > i386 box with 16GB of RAM and irqbalance disabled, (needed to boot): the profiling results were for a kernel without the new serial stuff. The new serial stuff appears to need some arch compatibility auditing/ fixes for NUMA-Q. Cheers, Bill - 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/