Date: Fri, 17 Dec 1999 20:49:45 -0000 From: "Cliff Rowley" <dozprompt@onsea.com> To: "Martin Welk" <mw@theatre.sax.de>, "death" <death@southcom.com.au> Cc: <freebsd-questions@freebsd.org> Subject: RE: DFE-530TX NIC - fast receive, slow send Message-ID: <000301bf48d0$40218800$0200000a@onsea.com> In-Reply-To: <19991217175559.C46333@theatre.sax.de>
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> Another thhing: could it be that some PCI adapter cards have to > share IRQs? > IRQ sharing is well-defined for PCI and they should be able to do so, but > we always try to avoid it for performance reasons because if there's one > unique IRQ for each device, no one has to decide and look which one it > probably was. No idea, I dont know a lot about hardware in that detail, but I shall investigate that for sure. It sounds mildly logical, but obviously I cant confirm that for myself until I've at least tried it. > All of those Ethernet adapters I told you from in other mails have > single IRQs :-) (Even the three ones in my desktop machine at work, > and the other three ones in a little server machine - of course, > the seven de interfaces in one machine (a single port card, a twin > port card, a quad port card) don't have, but this machine doesn only some > Ethernet routing to an uplink that's currently limited to 2 mbit/sec, so > I don't care about performance that much. I've ditched the FA310TX originally for the LNE100TX, and I've now got a 3c905C, with another on it's way. We'll see again once I have another 3Com in another machine. Thanks for your input. Cliff To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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