What is the Symfony firewall doing that takes so long?

Question

My Symfony page isn\'t too slow (it loads in about 400 ms) but considering the fact that it\'s just a simple hello world page with basic authentication, it should be loading

Answer 1

I did some googling and I see that this guy, seems to have the answer to your question.

After 15 minutes of research I ended up figuring out that this was due to the PHP PDO constructor (my Firewall is the first to connect to the database as I use Entities as users). With this knowledge the issue was pretty quickly found ([1], [2]): as it turns out using a DNS name (like 'localhost') instead of an IP (like '127.0.0.1') causes this issue.

A simple edit of the parameters.yml file (changing localhost to 127.0.0.1) did the trick of reducing the Firewall load time to only a minimum.