From owner-freebsd-current Fri Apr 5 09:57:13 1996 Return-Path: owner-current Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id JAA29337 for current-outgoing; Fri, 5 Apr 1996 09:57:13 -0800 (PST) Received: from brasil.moneng.mei.com (brasil.moneng.mei.com [151.186.109.160]) by freefall.freebsd.org (8.7.3/8.7.3) with ESMTP id JAA29330 for ; Fri, 5 Apr 1996 09:57:10 -0800 (PST) Received: (from jgreco@localhost) by brasil.moneng.mei.com (8.7.Beta.1/8.7.Beta.1) id LAA04875; Fri, 5 Apr 1996 11:56:18 -0600 From: Joe Greco Message-Id: <199604051756.LAA04875@brasil.moneng.mei.com> Subject: Re: tty-level buffer overflows - what to do? To: bde@zeta.org.au (Bruce Evans) Date: Fri, 5 Apr 1996 11:56:18 -0600 (CST) Cc: jgreco@brasil.moneng.mei.com, root@deadline.snafu.de, current@FreeBSD.ORG In-Reply-To: <199604050309.NAA13560@godzilla.zeta.org.au> from "Bruce Evans" at Apr 5, 96 01:09:00 pm X-Mailer: ELM [version 2.4 PL24] Content-Type: text Sender: owner-current@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk > >What kind of drives? IDE drives bite, particularly if they are being used > >at the same time as the serial port... etc, etc. > > IDE drives have no affect on the operation of the serial unless they > are so slow that the system spends too much of its time in the kernel. > Bus-hogging SCSI controllers bite. It has been my observation that IDE drives DO tend to affect the operation of serial I/O, at least during heavy I/O periods. Small-memory systems tend to spend much more time doing "heavy I/O" (swapping), in my experience, this is just one reason I put 8MB in even my smallest machines these days. ... Joe ------------------------------------------------------------------------------- Joe Greco - Systems Administrator jgreco@ns.sol.net Solaria Public Access UNIX - Milwaukee, WI 414/546-7968