KAlexandr.com

Ever site have content for cache or pregenerate.

Why cache need to be part of optimization? - if you know what you do and how it is very fast way to lower server load. So, after load is lowered you will have time to think about logical optimization ;)

What we can cache?

• content
• sql results
• functions results
• logical results(which isn't design as separate functions)

As example, if site have visitors counter its results can be cache for several minutes and this will save little time for executions. Here I need to notice - it very important to cache something which take more time than fetch from cache! of course for our case we need to know how many time/cpu/memory take counter and same values for cache fetch function. There are no sense to cache if we do not save or convert server resources.