Web caching

[rpeterson at wallacefloyd.com (Ron Peterson)]

I'm curious.  Does Apache cache static web content in memory?  I.E. - if
I request a static page, does Apache store that page in memory for some
period of time, in case someone else asks for it?  Or does Apache fetch
the page from disk each and every time?  If it is cached, then for how
long?  Is there a cache timeout parameter?

Taking this a step further, would PHP perhaps do the same thing? 
Obviously dynamic content, like database data, would need to be
requeried, but the php files themselves could be loaded every "x" number
of minutes or something.

I'm putting together some web stuff w/ lots of little pieces being
included into larger pieces, being included into larger pieces yet. 
This makes the coding easier, of course, but I'm wondering how this
affects performance disk-access wise.  Not that performance for what I'm
doing right now is really an issue, but I'd like to know anyway.

--

Ron Peterson
Systems Manager
Wallace Floyd Design Group
273 Summer Street
Boston, MA  02210
617.350.7400 tel
617.350.0051 fax
rpeterson at wallacefloyd.com
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