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Subject: Re: performance issues
From: Wietse Venema (wietseporcupine.org)
Date: Tue Jun 06 2000 - 08:05:55 CDT

Brad Knowles:
> As a control, I just did a timing with "smtp-sink 25 1000" on the
> same machine:
>
> /usr/bin/time ./smtp-source -m1000 -s20 -l15360 -c
> -tnullfatbert.skynet.be localhost
...
> This means that this machine cannot possibly handle any more than
> 200 messages per second, even if it doesn't do any disk I/O at all
> and just throws everything away as quickly as it possibly can.

Warning: my tools have limitations too, and there is only so much
that a multi-threaded sink/source program can do. If you want to
be certain this is the limit, then run a couple source+sink pairs
at the same time, on different TCP ports. Also, see if it makes a
difference if you use localhost or some other interface, just in
case it does.

        Wietse