A month ago I have stopped using Google Analytics for my site and instead gave a try to Piwik – an open source, PHP/MySQL based real time web analytics application. Since then it has been working well for my site and overall to me it looks like a better alternative to Google Analytics.
The WinCache Object Cache plugin provides a persistent memory-based backend for the WordPress object cache. An object cache is a place for WordPress and WordPress extensions to store the results of complex operations. On subsequent loads, this data can be fetched from the cache, which will be must faster than dynamically generating it on every page load.