CODEWITHSUNDEEP
ruby-on-railsnginxpassenger
malcoauri
malcoauri

Reputation: 12189

How Phusion Passenger with Nginx process requests?

I'm a Rails developer with some experience (1.5 years), but I still doesn't know how Phusion Passenger processes requests. I understand that at first Nginx catch request and passes my request to Phusion Passenger, but what happens later? How memory does Passenger use? Is there a thread/process for each request or not? There is only one copy of Passenger in memory or not? Please, explain me the algorithm. Also, how many cores of my system can Passenger use? Thanks a lot in advance.

Upvotes: 0

Views: 144

Answers (1)

Hongli
Hongli

Reputation: 18924

Passenger author here. Most of your questions are explained in Passenger's Design and Architecture document. There is also a lot of information in the Raptor blog posts.

Some specific answers to questions not answered in that document:

  • "How memory does Passenger use?" -- Passenger itself (not counting the application) uses about 4 MB in total.
  • "Also, how many cores of my system can Passenger use?" -- It can use all your cores. Whether the application can use all your cores is a different question, and has got nothing to do with how many Passenger can use.

Upvotes: 1

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