On Mon, 05 Jun 1995 17:31:16 -0400 Paul Graham <pjg @
>it seems that you're agreeing with stan. in particular if you assume
>adequate i/o bandwidth as well as adequate cpu you can arrange parallel
>delivery to all recipients in real (or near real) time. doing this with
>sendmail can be resource intensive.
Stan said just CPU and referred to a 486/33, which is indeed considered a
"slow" CPU nowadays. What you need (with sendmail) is CPU, memory and
I/O, growing mostly in n2, and of course bandwidth, growing linearly. You
can buy a machine 10 times faster than Stan's 486 and still not get all
that much more work done. In fact on dedicated machines sendmail works
better with *slower* CPUs. Upgrading from a 486/33 to a P90 would
probably cause sendmail to swap the machine to death because it thinks
it's underused, when in fact it is working at capacity as far as RAM and
I/O are concerned (sendmail quirk #1829812).