From owner-freebsd-current@FreeBSD.ORG Sat May 10 14:29:11 2003 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 4AAAC37B401 for ; Sat, 10 May 2003 14:29:11 -0700 (PDT) Received: from smtpout.mac.com (A17-250-248-86.apple.com [17.250.248.86]) by mx1.FreeBSD.org (Postfix) with ESMTP id C25CC43F75 for ; Sat, 10 May 2003 14:29:10 -0700 (PDT) (envelope-from leimy2k@mac.com) Received: from mac.com (smtpin08-en2 [10.13.10.153]) by smtpout.mac.com (Xserve/MantshX 2.0) with ESMTP id h4ALT81L018454 for ; Sat, 10 May 2003 14:29:10 -0700 (PDT) Received: from mac.com (adsl-32-249-101.jan.bellsouth.net [67.32.249.101]) (authenticated bits=0) by mac.com (Xserve/MantshX 2.0) with ESMTP id h4ALPjA3022138; Sat, 10 May 2003 14:25:46 -0700 (PDT) Date: Sat, 10 May 2003 16:25:44 -0500 Content-Type: text/plain; charset=US-ASCII; format=flowed Mime-Version: 1.0 (Apple Message framework v552) To: Lars Eggert From: David Leimbach In-Reply-To: <3EBD1D65.1060104@isi.edu> Message-Id: Content-Transfer-Encoding: 7bit X-Mailer: Apple Mail (2.552) cc: current@freebsd.org Subject: Re: Interrupt latency problems X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 10 May 2003 21:29:11 -0000 Are you using sysmouse for your mouse protocol for X? This used to happen to me all the time in FBSD 4.x before I changed to sysmouse. Dave On Saturday, May 10, 2003, at 10:40 AM, Lars Eggert wrote: > On 5/10/2003 5:37 AM, Paul Richards wrote: > > >> I'm having real problems with current with heavy disk activity. >> When working in X and updating ports which causes a lot of disk >> activity >> I get *very* poor interactive responses. Keypresses can not appear for >> seconds and mouse movement is very jerky and unresponsive. >> I'm wondering if something is holding locks a long time in interrupt >> handlers and causing mouse/keyboard interrupts to be lost? >> Since this is caused by heavy disk activity then my first guess would >> be >> the ATA driver. >> Is anyone else seeing anything like this? > > I do, but with SCSI disks and on an SMP box. So I doubt it's the ATA > subsystem alone. > > Lars > -- > Lars Eggert USC Information Sciences > Institute >