[Prism54-users] Prism54 performance revisited ...

[Stefan U. Hegner (Mobil)]

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Hi there,

just did a couple of performance benchmarks with the 20031130-cvs driver
and the results are very good! - Developers: please be encouraged!

What I did:
I copied a 200MB iso-image using scp over the air. I did this for Linux
as well as for Windows (using winscp2). Here are the results:

Prism54 card:	SMC2835W
Access point:	U.S.Robotics USR 808054
Wired client:	Dual P3-500 running Gentoo 1.4 and Openssh
Link strength (from same position): -60db (Linux) 60% (Windows)
Link distance is about 8 mtrs. - There is one brick wall or two glass
doors between the AP and teh Prism54 card.

Linux Throughput
scp from Prism54 to AP:	1.1 MB/s      net bandwidth: 8.8Mbit
scp from AP to Prism54:	1.9 - 2.3MB/s net bandwidth: 15.2 up to 18.4Mbit

I got a stable 2.2 MB/s link translating to 17.4MBit. I think this a
cool bandwidth! - However, I don't understand why there is such a
difference in sending and receiving data.

Windows Throughput
scp from Prism54 to AP:	0.9 MB/s      net bandwidth: 7.2Mbit
scp from AP to Prism54:	0.6 MB/s      net bandwidth: 4.8Mbit

However, the last test result seems very strange to me. And I cannot
believe that WinSCP is creating to much overhead on my P3-1200 notebook,
that io drops.

Anyhow, I think this is a more accurate measure than the bing test. And
since ssh/scp is on most Linux machines, this can be easily tested. The
stated MB/s are an estimated average from the Throughput displayed
during the copy process.=20

HTH.

Stefan.

--=20
/ Stefan Ulrich Hegner aka "Hegi" - Loehne/ Westfalen - Germany \
| mobil@hegner-online.de - primary Email stefan@hegner-online.de|
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