From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 3 May 2001 21:39:06 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 3 May 2001 21:38:46 -0400 Received: from 64-166-90-2.ded.pacbell.net ([64.166.90.2]:51439 "EHLO atheros.com") by vger.kernel.org with ESMTP id ; Thu, 3 May 2001 21:38:33 -0400 From: Jeffrey Kuskin MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <15090.2067.861480.564724@byte.users.atheros.com> Date: Thu, 3 May 2001 18:38:27 -0700 To: linux-kernel@vger.kernel.org Subject: 2.4.4+fork patch still sluggish Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org This is basically a followup to the "2.4.4 sluggish under fork load" thread. I am using Redhat 7.1 on a 128MB 400 MHz PII system. I have a locally-built 2.4.4 kernel to which I manually applied the patch that backs out the child-before-parent behavior on a fork. Namely, this patch: However, even with this patch applied, I still see extremley jerky mouse pointer behavior when I run any kind of job that does lots of forking. For example, a kernel compile or even just the "configure" in preparation for compiling XEmacs. The same behavior, on exactly the same machine, did _not_ occur with Redhat 6.2/kernel 2.2.19. I see that this patch has recently been merged into 2.4.5-pre1, but I am concerned that it does actually fix the underlying problem. Do others continue to see "jerky mouse pointer" behavior even with this patch installed, or should I look for other causes? For instance, are there known problems with jerky mouse pointer behavior under heavy swapping load? -- Jeffrey Kuskin Tel: +1-408-773-5256 Senior System Engineer Fax: +1-408-773-9940 Atheros Communications http://www.atheros.com jsk@atheros.com