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Date:      Thu, 20 Aug 1998 21:42:25 +0000 (GMT)
From:      Terry Lambert <tlambert@primenet.com>
To:        dag-erli@ifi.uio.no (Dag-Erling Coidan =?iso-8859-1?Q?Sm=F8rgrav?=)
Cc:        didier@omnix.net, zenin@archive.rhps.org, hackers@FreeBSD.ORG, support@yard.de
Subject:   Re: Linux vs FreeBSD (performances)
Message-ID:  <199808202142.OAA26941@usr04.primenet.com>
In-Reply-To: <xzp4sv7aape.fsf@skejdbrimir.ifi.uio.no> from "Dag-Erling Coidan =?iso-8859-1?Q?Sm=F8rgrav?=" at Aug 20, 98 04:18:21 pm

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> > when I'm running FreeBSD and Linux on the same machine (Pentium II)
> > on this application, FreeBSD is 3.5 times faster than Linux
> 
> This sounds a little extreme. Of course, we like to believe that
> FreeBSD is faster than Linux, but a threefold increase in performance
> is too good to be true. Blame it on differences in configuration.

This is the "Yard" thing, where 100 byte packets fly in FreeBSD
when TCP_NODELAY is set on the server.

The thing that is killing Linux is their delayed ack implementation.


					Terry Lambert
					terry@lambert.org
---
Any opinions in this posting are my own and not those of my present
or previous employers.

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