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Date: Mon, 13 Nov 2000 10:34:44 -0600
From: Bruce Guenter <bruceg@em.ca>
To: linux-kernel@vger.kernel.org
Subject: Re: [OT] Wild thangs, was: sendmail fails to deliver mail with attachments in /var/spool/mqueue
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In-Reply-To: <3A0C929B.EE6F7137@linux.com>; from david@linux.com on Fri, Nov 10, 2000 at 04:28:11PM -0800
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On Fri, Nov 10, 2000 at 04:28:11PM -0800, David Ford wrote:
> Some wild blatherings about sendmail...

Warning:  the following will likely be seen by some as flamebait.  I've
long ago divorced myself from sendmail to save my own sanity.

> - Uses lots of memory to send a big file.
>     Incorrect.  I just verified it with a 10 meg file which became a 14 m=
eg attachment.
> Sendmail consumed an additional 5 megs combined while handling the input =
and output v.s.
> an idle daemon.  Idle is 1.8M, recv was 4.0M, send was 2.3M, no measure o=
n the remote
> side.  I sent it via pine to a remote address.

As opposed to modern mail servers which can send messages of any size
using constant sized small (well under 1M) processes.

> - Requires high load average allowance
>     Incorrect.  Same machine barely spiked a tenth of a point for this lo=
ad and dropped
> back to .05.

You saw load while sending a single file?  Modern mail servers can send
without generating significant load (unless your server was a 386).
I've used older Pentium boxes that could send 60 messages at a time
without hitting .1 load.

Anyways, this is rather off topic for linux-kernel.
--=20
Bruce Guenter <bruceg@em.ca>                       http://em.ca/~bruceg/

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