Having problem with
in the past I decided rather to install fresh version of debian/jessi
I like jesse because I got accustomed with systemd and jessie is finnaly on board with it.
I decided that I will also cut down on number of CPUs down to just 4 (AMD Buldozer 2Ghz) and 4Gb of ram.
So my new LAMP stack is now LNMP. Just migrating to NGINX and enabling OPCache the typical response time became 3-4x faster on 3x less CPUs. I didn't bother with server load at this point since this was just learning exercise.
Now my page load time was about 300ms. Things are getting brighter I thought.
But I was not happy yet. I found a great tutorial on how to configure Wordpress to use REDIS
I don't like caching plugins like W3C because It has so much overhead and I like to use as few plugins as possible. Wordpress core is really great but plugins... Plugins are hell:)
Redis implementation to wordpress was however almost trivial. I took me 30 minutes to set thing up and push changes to production. And now a bomb shell.
Page generated in ~0.84239 seconds Apache without php cache
Page generated in 0.34239 seconds NGIX with OPCache
Page generated in 0.00084 seconds !!! NGIX wit OPCache and REDIS
I took just a few hours with almost no effort to archive 1.000x faster page load.
So to paraphrase Microsoft 365 commercial. UPGRADE UPGRADE UPGRADE