<MySQL Query Cache, WP-Cache, APC, Memcache - What to choose ⁄ >

Ever since I changed my job (from Business Intelligence to Web development) and started working with my present employer, I have had a chance to work on a lot of scalable projects. From making my project to scale from 20 Million PV's to 100 Million PV's to development of an internal tool, the answer to all scalable applications have been caching.

There are a lot of caching techniques which are being employed by sites worldwide.

1. WP-Cache used in wordpress - a file system based caching mechanism
2. APC Cache - an opcode based caching system
3. Memcache - an in memory caching system
4. Query Cache - caching mechanism employed in MySQL

Here in this post I would like to pen down my experiences while working with all the caching mechanism. Their pros and cons. What things you need to take care while working with them and every little tit bit which comes to my mind while writing this post.



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