[ale] dumb apache/memory question

[djinn]

Background on dumb question:  sar -r is consistantly showing me at 95 -
98% memory usage, top is showing httpd and stunnel at..uh..the top but
I'm running at 85 - 95% idle on CPU utilization.  Obviously, I'm doing
something that's way RAM intensive...

This machine is running apache 1.3.20 + modssl + php 4.0.6 and all the
database connections go over stunnel.  That's all it's doing.  But the
most heavily hit pages are not static...most of our stuff relies on PHP
which is, I'm assuming, the cause of the memory hoggage (I know stunnel
is contributing as well).  

So here's my dumb question: do I need to throw RAM at this (I've got
512MB) or do I need to tune my setup?  Or both?  I'm beginning to
believe that my web page lag is due to my web server and not so much my
firewalls...firewalls are just idling away with tons of processor and
RAM free even at peak traffic time.  Even if it's not the direct cause
of the slowness, it would seem that 98% RAM utilization would be a thing
to worry about.

TIA, as always
jenn
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