From owner-freebsd-current@FreeBSD.ORG Sat Jun 12 21:12:38 2004 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 8F71416A4CE for ; Sat, 12 Jun 2004 21:12:38 +0000 (GMT) Received: from mail022.syd.optusnet.com.au (mail022.syd.optusnet.com.au [211.29.132.100]) by mx1.FreeBSD.org (Postfix) with ESMTP id A57CA43D54 for ; Sat, 12 Jun 2004 21:12:37 +0000 (GMT) (envelope-from PeterJeremy@optushome.com.au) Received: from cirb503493.alcatel.com.au (c211-30-75-229.belrs2.nsw.optusnet.com.au [211.30.75.229]) i5CLBIk01938; Sun, 13 Jun 2004 07:11:18 +1000 Received: from cirb503493.alcatel.com.au (localhost.alcatel.com.au [127.0.0.1])i5CLBCVd034975; Sun, 13 Jun 2004 07:11:17 +1000 (EST) (envelope-from pjeremy@cirb503493.alcatel.com.au) Received: (from pjeremy@localhost)i5CLB6c3034974; Sun, 13 Jun 2004 07:11:06 +1000 (EST) (envelope-from pjeremy) Date: Sun, 13 Jun 2004 07:11:06 +1000 From: Peter Jeremy To: Ian FREISLICH Message-ID: <20040612211105.GK1596@cirb503493.alcatel.com.au> References: <20040611213707.B13626@gamplex.bde.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.2i cc: current@freebsd.org Subject: Re: Interrupt storm detection 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, 12 Jun 2004 21:12:38 -0000 On Fri, 2004-Jun-11 16:01:59 +0200, Ian FREISLICH wrote: >> On Fri, 11 Jun 2004, Ian FREISLICH wrote: >> >> > I have a problem printing. The data rate through my parallel port >> > to my printer makes the kernel think that lpt0 is storming at between >> > 40k-49k irqs per second. Is there a way to tell the kernel to >Does a PII-266 constitute a slightly slower machine? I'm amazed you can get to >40K irqs/sec on a PII-266. Have you tried using lptcontrol(8) polling or extended mode? Your other option is to offload the interrupts - either get a network interface module for your printer or dedicate an old clunker as a print server. -- Peter Jeremy