I'd like to understand more about how FastCGI works. I work with online stores and would like to know the best option for my needs between FastCGi and WP Rocket.
In load tests, both systems are similar.
However, in a page refresh test, which basically consists of refreshing the page many times within 1 minute, I had a surprise. WP Rocket consumes virtually no CPU, but FastCGI consumes a lot of CPU in this test.
From the information I gathered, FastCGI does not cache pages, but WP Rocket does.
I want to understand this system of how FastCGI handles such a large load of simultaneous accesses if it does not cache pages like WP Rocket.
I'm really curious about this, how FastCGI can handle so many accesses, but in page updates, it causes such a high CPU usage.
