Professional Software Engineering
<PSE-L(_at_)mail(_dot_)professional(_dot_)org> wrote:
Anyone operating their own mailserver would do well to check out the
load caused by spamd (yea, I'm not even talking about individual
user-invoked SA processes). I think SA is a great thing for people
incapable of managing their own spam solution and who believe the
solution to resource hogs is to upgrade to a supercomputer, but IMO,
SA is just too much of a pig for some people to want to use it.
Hmm. My personal email box is a 500mHz p-III w/ 256mb memory. Besides
email, it runs httpd and samba (as a pdc w/ roaming profiles). The
other things it does are trivial. There are about 6 users on that box
(family).
Yeah, when I get a spam message, spamd takes up 93% of the cpu at rest,
w/ a load avg of ~.94. The rest of the time, the load avg. is around
.18.
So what?
On my deptmental machine, (a 600mHz P-III dual processor machine w/
512mb memory) the load avg sits at around .25 most of the time. This is
on a machine also running LDAP as the main authentication source (for
both pam and samba, again as a PDC), clamav, NFS, httpd, horde, pop3, &
imap. About the only thing it doesn't have is interactive users (they
use other machines that utilize the LDAP and nfs). In short, all of the
server functions are on this machine. This is for ~500 users.
Fwiw, spamd is almost never the top cpu utilization.... slapd is.
We do have a dual-P4 xeon computer to replace this server, but we
haven't gotten around to setting it up yet. Frankly, the current server
just isn't stressed enough to warrant rushing it.
For a home user managing their own computer, who the hell wants to
have to manage a separate host just for mail processing?
See above.
Hell, for a
small business, who wants to do that? More work, another box to set
up (and need an IP for), back up, monitor, etc.
It's a hell of alot easier to do that (once) than to futz around with a
procmail script every other day (imho of course).
--\x81
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Chris Barnes AOL IM: CNBarnes
chris-barnes(_at_)tamu(_dot_)edu Yahoo IM: chrisnbarnes
Computer Systems Manager ph: 979-845-7801
Department of Physics fax: 979-845-2590
Texas A&M University
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