Linux-Announce Digest #977 (fwd)

[Harris Kosmidhs]

Gia opoious endiaferontai...

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---------- Forwarded message ----------
Date: Tue, 7 Apr 98 08:13:21 EDT
From: Digestifier <Linux-Announce-Request at senator-bedfellow.mit.edu>
Reply-To: Linux-Announce at senator-bedfellow.mit.edu
To: Linux-Announce at senator-bedfellow.mit.edu
Subject: Linux-Announce Digest #977

Linux-Announce Digest #977, Volume #2             Tue, 7 Apr 98 08:13:21 EDT

Contents:
  WANTED: The throughput of your Linux-machine (Winfried Truemper)

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From: Winfried Truemper <winni at xpilot.org>
Subject: WANTED: The throughput of your Linux-machine
Date: Tue,  7 Apr 1998 11:55:37 GMT
Reply-To: Winfried Truemper <winni at xpilot.org>

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I would like to gather some numbers about the throughput people experience
with their Linux-machine. Only high numbers are of interest (of course).
The results will be published here in comprehensive form. Please read
the whole message before you write me an answer.


To explain my motivation, lets give an example: It's a well known fact
that you can theoretically transfer data via ftp at a speed of 1.2
megabyte/second via a cheap 10 Mbit/s Ethernet. But in practice you will
notice an enormous drop in performance if you try to transfer 12
kilobyte/second with 100 clients (it's the same amount of data). 
Therefore some Internet Service Providers guarantee only a bandwith of 6
Mbit/s for high loaded web-servers on a 10Mbit Ethernet. 


So my question is, how does Linux perform for intensive tasks under real
life circumstances? How close does one get to the theoretical limits and? 
What hardware does one need for which task? Answers can include the number
of transactions/day or Gigabyte/day for network services, database
queries, number crunching, interaktive telnet sessions, etc.

Please do only submit data if your machine really handles a high
workload. Probably you fullfill this criteria if you never heard
of much Linux machines handling the same amount. :-)
Example: Everybody already knows that 10 Gigabyte/day are peanuts
for Apache running on a Pentium 166, so please report higher
numbers. :-)
Of interest are also low-end machines, which handle a relative
huge amount of work. Clusters of machines are allowed, too. :-)

Please facts only, e.g. numbers you have gathered yourself with a
statistics programm. Pure guesses, rumors and something you have
heard of are of no interest for this survey. I will not include
them (without any notification).
Please don't submit any reports after April 15th, 1998. There will
surely be another survey if you miss this deadline.

To protect me from getting burried alive in e-mail, there is a
web-page you should check before anything else. The address is:

        http://www.guug.de/~winni/linux/workload.html

This page lists the highest workloads submitted so far and you should be
above these number or at least very close to them before you answer me.
It will probably be empty the first day.

Please include all relevant data about your setup.


Thanks in advance
- -Winfried




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