Date: Sun, 14 Mar 1999 14:24:37 +0100 From: Andreas Klemm <andreas@klemm.gtn.com> To: Rob Snow <rsnow@lgc.com> Cc: Amancio Hasty <hasty@rah.star-gate.com>, Cory Kempf <ckempf@enigami.com>, Bill Paul <wpaul@skynet.ctr.columbia.edu>, freebsd-hackers@FreeBSD.ORG Subject: Re: Gigabit ethernet -- what am I doing wrong? Message-ID: <19990314142436.A1292@titan.klemm.gtn.com> In-Reply-To: <001b01be6e10$08061120$03e48486@dympna.com>; from Rob Snow on Sun, Mar 14, 1999 at 05:44:28AM -0600 References: <001b01be6e10$08061120$03e48486@dympna.com>
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On Sun, Mar 14, 1999 at 05:44:28AM -0600, Rob Snow wrote: > I'm looking at this wondering a couple of things. How many mem copies take > place in the IP stack before we're ready to transmit a frame? My question > is based around whether it's the NIC's or the IP stacks and PCI holding us > back. What would PCI-64@66 do for us with current stacks? AFAIK "zero copy tcp/ip" went into 3.1 and 4.0. Thanks to David Greenman who implemented and tested this on ftp.cdrom.com. (I hope I got the credits right ;-) -- Andreas Klemm http://www.FreeBSD.ORG/~andreas What gives you 90% more speed, for example, in kernel compilation ? http://www.FreeBSD.ORG/~fsmp/SMP/akgraph-a/graph1.html "NT = Not Today" (Maggie Biggs) ``powered by FreeBSD SMP'' To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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