Date: Sun, 21 Mar 1999 12:03:31 -0800 (PST) From: Matthew Dillon <dillon@apollo.backplane.com> To: Amancio Hasty <hasty@rah.star-gate.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: <199903212003.MAA14516@apollo.backplane.com> References: <199903212000.MAA50283@rah.star-gate.com>
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: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>
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