Plugin for profiling in Wordpress?

Question

Debugging

Good day!
You need to find out who and what eats the load time on a site powered by Wordpress. I remember finding a similar plugin, which described in detail all the queries to the database and the execution time. Please tell me the names of good plugins for debugging and profiling.

Answer 1

Good.
Query Monitor ?

Answer 2

Hey!
You can also pay attention to the Debug Bar Slow Actions
If you need something serious, then check out https://newrelic.com/ (paid)