anybody tried expiring an object,? say after 300 secs, the cached object expires, get invalidated and a new cached object is created when somebody requested the page. is there any simple way to expire a RAM Cache?
haven't tried this yet.
also, for those who tried caching. what do you guys do? cache the methods that make up the bigger method? or just cache the bigger method?
e.g dtml method a is made from method b, c, d,...n do you cache a, or selectively cache b and/or c, d, ...
it depends on what's in each element. the design of the caching system is such that you can have as fained-grained a control as you wish. the decision is entirely up to you. my fairly amateurish tests suggest that the benefits of caching only really manifest themselves at high levels of concurrency. if the method (a) contains a little logic, items (b),(c) and (d) are images, and the whole page is very frequently accessed, you'd probably benefit from caching (a) in RAM, and using the HTTP Cache manager for the other elements. OTOH, you could expect proxies and browser caches to handle elements such as images fairly well, so I imagine most of the benefit would come from caching only the element of the page which contains the logic. If the page is accessed only a hundred times a day, you will see little benefit from caching it, at the cost of some memory on your server. in a scenario where (b), (c) and (d) each contain their own snippets of logic, you would be wise to cache them all. Otherwise you would lose the benefits of caching (a), because to build the page, Zope is still making hits to disk each time. well, that's how I assume it works, anyway. time for more tests, i think... seb