From owner-freebsd-questions Sun Nov 7 3:32: 2 1999 Delivered-To: freebsd-questions@freebsd.org Received: from j51.com (j51.com [209.94.121.51]) by hub.freebsd.org (Postfix) with ESMTP id D828F1504A; Sun, 7 Nov 1999 03:31:55 -0800 (PST) (envelope-from danielm@j51.com) Received: (from danielm@localhost) by j51.com (8.8.8/8.8.5) id GAA14700; Sun, 7 Nov 1999 06:29:04 -0500 (EST) From: Daniel Malament Message-Id: <199911071129.GAA14700@j51.com> Subject: Re: various In-Reply-To: from Julian Elischer at "Nov 7, 1999 3: 5:47 am" To: julian@whistle.com (Julian Elischer) Date: Sun, 7 Nov 1999 06:29:04 -0500 (EST) Cc: questions@FreeBSD.ORG, hardware@FreeBSD.ORG X-Mailer: ELM [version 2.4ME+ PL43 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Thanks for the prompt reply. > > such slow performance out of the 3com? Are all ISA nics this slow? For > > that matter, how much bandwidth can one expect a card to use in general? > > What prevents getting the full 10MB? Buffer delays? > You should be able to get close to 10Mb/sec on an NE2000 if you have a > pentium200 or more.. Well, it's a P166.... I should clarify, btw: the cards were giving me 333 and 30 kilobytes/sec, whereas ethernet is of course measured in megabits. But - what determines the limits? Processor and buffer, like I said? Is there usually a difference in performance between ISA and PCI nics? > I suspect the card doing 30KB/sec is configured for the wrong interrupt.. > (check systat -vmstat to se if it's generating any interrrupts) It's generating them, all right. There is one odd thing, tho... I'm using ftp to do this, and there seems to be a pause after each file. I'm not sure what that pause is, and if it's being factored into the speed rating. I didn't perceive a pause with the faster nic, but then the transfers were also going faster. > > 3) What's the current status of FreeBSD's USB support? > various simple devices work (e.g keyboard, mouse.. more complicated > devices are being 'improved'. When was USB suport added to the system? And is it actually worth using? I don't see much reason for using USB for a keyboard, and I've also heard that USB is flaky in general... -Dan To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message