Stuart Herbert | Gentoo

I’m currently designing an additional layer of caching for Amaxus (which I now have running on Gentoo ) and for clickdensity. Delivering a performance boost is great, but I’d also like the cache to gather some useful information on how well it is working. The stats are partly to impress management/customers … but I’m much more interested in stats for developers.

So far, my list of stats includes the obvious stuff - hit/miss ratio, CPU & RAM saved (when compared to the uncached version of the page), and a set of counters to keep track of each reason why the cache missed. But what other stats would you find useful, if it was your code?