## Performance Optimization

* Before we dive deep into Varnish, I’d like to get a feel for the various performance improvements anyone can make to speed up their Drupal. What’s the process you think through when optimizing a site?

    * DB Tuning

    * Boost

    * Memcache

    * Redis

    * APC

    * Varnish

    * Module Choices!

## Varnish

* What exactly is Varnish?

* When researching Drupal performance optimization, I came across a lot of references to APC and Varnish. What is the difference?

* Is this for anonymous or authenticated traffic?

* Is the Varnish module required to utilize Varnish with Drupal?

* What are the steps needed to install and utilize Varnish? (Broad terms, not actual terminal commands)

* Does SSL affect Varnish?

* What doesn’t Varnish do? (What needs to be done by Drupal, or other software instead?)

* How does Varnish affect a dev/staging/live workflow? Does Varnish need to be instlaled on the local machine?