Date: Sun, 7 Nov 1999 06:29:04 -0500 (EST) From: Daniel Malament <danielm@j51.com> To: julian@whistle.com (Julian Elischer) Cc: questions@FreeBSD.ORG, hardware@FreeBSD.ORG Subject: Re: various Message-ID: <199911071129.GAA14700@j51.com> In-Reply-To: <Pine.BSF.4.10.9911070302250.10573-100000@current1.whistle.com> from Julian Elischer at "Nov 7, 1999 3: 5:47 am"
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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
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