Hoping to squeeze a few more cycles out of my VPS, I recently implementing PHP and MySQL caching. So far, I haven’t noticed much in the way of performance increases, but the Apache Bench test results show there is some improvement.

For PHP I used xcache and followed the guide I found here.

For MySQL I followed this guide. I only need to set the value of query_cache_size to enable it. Running mysql> SHOW STATUS LIKE ‘Qc%’; shows that it’s being used.