On 10 Dec 96 at 1:00, List-Managers-Digest wrote:
> The highest numbers I've heard for a "standard" sendmail
> installation is about 300K messages per day, on a fairly high-end
> I have heard numbers in the range of 50K for a pretty low-end IBM
> desktop workstation, mentioned specifically in the posting of Paul
> Pomes' program "re-mqueue" to the Usenet newsgroup comp.mail.sendmail.
I suppose that it depends on what you consider "standard" sendmail
and whether that includes back-end programs like bulk_mailer.
I'm running Majordomo with bulk_mailer and sendmail 8.7.3 on Linux,
and bulk_mailer does of course make all the difference in the world.
My sendmail mailstats "msgsto" counter for smtp tells me that I'm
sending around 60k messages per day (varying from 2k to 3k per hour).
This is on a P75 with 40 megs of ram over a dedicated 28.8kbps line
(yes, I am performing actual delivery, not passing to a smarthost). I
run 50 simultaneous sendmail queue runs, and I'm finding ram is full
before the 28.8 line is (although it never gets a rest and is probably
two-thirds full towards its absolute max throughput).
Interesting to me is that the CPU usage is nothing. Load average
figures from "uptime" show an average from 0.7 to 0.9 at most times,
with occaisional spikes up to 3 or 4.
Using bulk_mailer and simultaneous sendmail queue runs gives delivery
times which I consider decent for a 28.8 line, averaging 10 to 20
minutes for every recipient. All of these lists are a few hundred
members or less, though.
I keep stats on the Web at http://www.bolis.com/stat/ if anyone is
interested; my list owners seem to like it. Any other list servers
besides the Listserv sites keep stats available for the public and/or
customers?
I'm still not really happy with my stats gathering currently, but I'm
not sure what I'm looking for. I imagine I will end up writing my
own program to parse the sendmail syslogs, which currently run 20 to
25 megs of raw log entries per day. Comments appreciated.
- Alan
----
Alan Millar amillar@bolis.com
Owner, System Admin http://www.bolis.com
Ask me about Internet mailing list services at Bolis.com
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