Date: Sun, 21 Mar 1999 12:13:48 -0800 From: Amancio Hasty <hasty@rah.star-gate.com> To: Matthew Dillon <dillon@apollo.backplane.com> Cc: Terry Lambert <tlambert@primenet.com>, Dag-Erling Smorgrav <des@flood.ping.uio.no>, andreas@klemm.gtn.com, rsnow@lgc.com, ckempf@enigami.com, wpaul@skynet.ctr.columbia.edu, freebsd-hackers@FreeBSD.ORG Subject: Re: Gigabit ethernet -- what am I doing wrong? Message-ID: <199903212013.MAA50370@rah.star-gate.com> In-Reply-To: Your message of "Sun, 21 Mar 1999 12:03:31 PST." <199903212003.MAA14516@apollo.backplane.com>
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Hmm.... Does anyone know when the faster PCI busses (64bits or 66MHz PCI clock rate) are going to be availabe ? Also, are there any giga ether cards for AGP ports? Tnks! Amancio > :Does anyone know of a faster PCI chipset implementation for PCs? Lets say > :schedule > :to be deploy in the next 6 months... > : > : Tnks, > : Amancio > > Most of these chips already pretty much saturate the PCI bus's available > bandwidth. You aren't going to get a significant improvement unless you > go to a double-speed or double-wide PCI bus. Double-wide ( 64 bits ) > is a standard and, in fact, the Gigabit chipset we've been discussing > appears to be able to deal with 64 bit wide PCI busses. However, the PCI > bus supplied with most PC's is a 32 bit wide bus, so you are limited > to an absolute best case 130 MBytes/sec or so worth of bandwidth. > > -Matt > Matthew Dillon > <dillon@backplane.com> > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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