Re: Aggressive PHP Smart Caching

Alexander, sorry to see nobody has replied to your post, im sure you worked very hard on the cache system and are eager for feedback.. so to me it looks like youve introduced a somewhat new style of caching here (though im sure there are other such approaches); for instance i know of 2 main uses for caches at this time [as caching pertains to php]. 1. caching php intermediate code 2. caching application variables both of these caching techniques are designed to overcome limitations of the language as it ships out of the box, more or less; afaik. it appears you are interested in caching the output of php scripts, which is, i suppose, a third technique that could be added to the list. so i have a criticism about your system and a couple questions as well. *criticism* - why cache script output on disk? if a fast cache is your goal, why not store the result of script output in memory rather than on disk; that would be much faster *questions* - how does your cache system know when cached output is stale and allow fresh contents to be delivered from the original script rather than being served from the cache? - why purge cache contents after 24 hours? im on the memcached mailing list, and recently they were discussing artificially resetting the cache; several people said they let memcahe run for months on end. -nathan On 6/18/07, Alexander Romanovich <andala@gmail.com> wrote:

I'm a PHP developer looking for feedback on a caching approach I put together recently. It's informed by thoughts people have shared on this newslist and other places over the years. My goal was to come up with an extremely lightweight flat file caching system which solves various concerns about portability, speed, and specific feature implementations. Included is a wishlist I generated to explain the approach. The code is small, and documented, and easy to test for those interested. Feedback form attached to the following web page (but this newsgroup is as good a forum as any, too). http://technologies.babywhale.net/cache/