On Tue, 14 Sep 1999, Evan Simpson wrote: [snip] :> > why not just use some separate subsystem for caching, eq. a squid :> > in httpd accelerator mode? : :Squid (or Apache) will work fine, but under very limited circumstances: : :o The cached object is a 'final' document, rather than a 'part' (eg. a banner :or toolbar) the cacheable object is a final document, but it could be cacheable if you have some least common denominator of the 'parts' (the assembled document would be as young as the youngest part). :o Your cache rules are *very* simple you would have to revalidate every object. :o You don't need authentication or side effects of the URL lookup there are cases where even authenticated sessions can produce cacheable objects, for instance static images. :o You're willing to explicitly kill the cache, or just wait, when you make :changes no, you just would have to tell the cache to look if the requested document is younger than the one cached. peter. _________________________________________________ peter sabaini, mailto: c c c p@oeh.tu-graz.ac.at, http://oeh.tu-graz.ac.at/~cccp/ - - - - - - - - - - - - - - - - - - - - - - - - - Any sufficiently perverted technology is indistinguishable from Perl. (ca. a.c. clarke) -------------------------------------------------