Date: Sun, 30 Aug 1998 11:35:56 +0930 From: Greg Lehey <grog@lemis.com> To: "Gregory P. Smith" <greg@nas.nasa.gov>, tom@uniserve.com Cc: current@FreeBSD.ORG Subject: Re: Intel PRO/1000 Gigabit Adapter Message-ID: <19980830113556.P17530@freebie.lemis.com> In-Reply-To: <199808241845.LAA00873@ryouko.nas.nasa.gov>; from Gregory P. Smith on Mon, Aug 24, 1998 at 11:45:02AM -0700 References: <199808231741.KAA05988@hub.freebsd.org> <199808241845.LAA00873@ryouko.nas.nasa.gov>
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On Monday, 24 August 1998 at 11:45:02 -0700, Gregory P. Smith wrote: > tom@uniserve.com wrote: >> Gigabit ethernet is 125MB/s, so would use more of PCI. The only hope is >> multiple independant PCI buses (some motherboards already have this). > > Good luck getting a single x86 CPU to handle the interrupt load of even > a single card with the overhead of processing 1500 byte packets at > Gigabit speeds... (based on observations of other Gig speed class > drivers and NICs I've seen). ;) Who said that gigabit Ethernet transfers data between individual machines at 125 MB/s? It's the theoretical maximum speed of a broadcast medium. Connect 100 machines together over gigabit Ethernet and you can (theoretically) still transfer 1 MB/s without problems. Sure, there are cases where you may want to use the bandwidth, but IMO that's not the real purpose of gigabit Ethernet. Greg -- See complete headers for address, home page and phone numbers finger grog@lemis.com for PGP public key To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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