[4052] in linux-net channel archive
Re: Question on performance
daemon@ATHENA.MIT.EDU (Doug Ledford)
Fri Aug 16 15:19:46 1996
Date: Fri, 16 Aug 1996 07:58:09 -0500 (CDT)
From: Doug Ledford <dledford@dialnet.net>
To: Jon Lewis <jlewis@inorganic5.fdt.net>
cc: ATPlack <ATPlack@scj.com>, linux-net@vger.rutgers.edu
In-Reply-To: <Pine.LNX.3.91.960816015555.949M-100000@inorganic5.fdt.net>
On Fri, 16 Aug 1996, Jon Lewis wrote:
> > PCI bus or EISA bus cards are better.
> >
> > Sounds like Linux is beating these DOS tests by a landslide. 500k sounds
> > good to me. :) However, Novell servers have shown an 800k throughput or
> > more with an ISA card on fast machines so it is not incredible.
>
> I've seen up to 900kb/s on ftp transfers between 2 P90's doing little else
> using 3c509's on a quiet ethernet. Typical, on our now more crowded net
> with busier systems is 400-600kb/s.
I ran a few tests tonight just for hte fun of it. On an ethernet segment
that carries a typical 10-30% sustained usage from the news server,
transferring an ftp file from the news server to the shell server. File
is 2.5MB in size, both servers are Pent100, plenty RAM, Adaptec 2940, SMC
EtherPower 10/100 NICs. Highest transfer rate was 1000KBytes per second,
lowest was an odd man out at 600KBytes/s. Second lowest was
850KBytes/s. Typical was from 900 to 980 KBytes/s, with a total of three
tries reaching the 1000KBytes/s mark. Of course, after the first
attempt, the file was cached, so it doesn't really measure disk speed,
but then again, the very first attempt came in at 900KBytes/s with the
600KBytes/s attempt falling somewhere around 5 or 6 (can't remember now).
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