I know this could easily get out of hand, but I'm wondering about changing
a mailing list server. Currently, it is an HP/715 with 32 megs of RAM,
a SPECint92 rating of 36, SPECfp of 72.
It serves a couple of dozen automotive related lists, under majordomo,
with a "fanout" of about 2.5 million messages per month, where fanout is a
somewhat useless number found by multiplying the number of list members by
the number of messages.
That is, if there are 500 members, and 1,000 messages per month, that's a
fanout of 500,000 per month. Better metrics for mailing list loads would
also be welcome.
So I'm currently wondering if some Pentium based PC, with a decent ethernet
card, can handle the load. The machine also serves as an FTP site, with a
dozen or so connections during the day, and as a web server. The CPU is
usually about 90% idle, while it waits for disk IO and 30 to 40 packets
per second to get pumped out to a fairly busy net. Could a new Pentium,
running Linux, perhaps, handle this sort of work?