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Date:      Fri, 10 Feb 1995 11:27:26 +0100 (MET)
From:      Christoph Kukulies <kuku@gilberto.physik.rwth-aachen.de>
To:        jhay@mikom.csir.co.za (John Hay)
Cc:        freebsd-questions@freefall.cdrom.com (user alias)
Subject:   Re: enet throughput
Message-ID:  <199502101027.LAA25688@gilberto.physik.rwth-aachen.de>
In-Reply-To: <199502100401.GAA16155@dolphin.mikom.csir.co.za> from "John Hay" at Feb 10, 95 06:01:16 am

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> 
> I think the Ethernet performance also depend on the type of card, I use
> mostly SMC Elite Ultra cards and I get ~1088kbytes/second on 66MHz 486s.
> That is using FreeBSD 1.1.5 or 2.X and the ttcp test program.
> 
> I have a notebook, (33 MHz 486, FBSD 2.0) that use a 3C509 and the
> performance is bad.
> 
> John Hay -- jhay@mikom.csir.co.za
> > 
> > freebsd enet performance doesn't look too good down here. 
> > from freebsd -> irix i see 700 kbytes/sec. This is using 3c509s, isa bus, 
> > p90 systems, the 12/22/94 snap.
> > 
> > from freebsd -> freebsd i see 200 kbytes/second. Linux on similar boxes, 
> > same cards, sees 980 according to a friend. 
                     ^^^
I believe linux figures are cheating because the linux fs cache.
I wonder how linux looks when you transfer a really large file (>> physical
memory).


> > 
> > Any hints to me (i don't read -questions) would be welcome.
> > (besides "convert to linux" i mean)
> > 
> > 
> > Ron Minnich                |We can think of C++ as the Full Employment Act 
> > rminnich@earth.sarnoff.com |for Programmers. After all, with each compiler
> > (609)-734-3120             |version change, you have to rewrite all your code.
> > 
> > 
> > 
> 
> 

--Chris Christoph P. U. Kukulies kuku@gil.physik.rwth-aachen.de
FreeBSD blues 2.1.0-Development FreeBSD 2.1.0-Development #0: Sat Feb  4
16:57:32  1995     kuku@blues:/usr/src/sys/compile/BLUES  i386



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