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I'm a developer who start in the server management. I would like to how I can calculate the maximum number of users I can have on my machine at the same time in function of his own configuration and of his web workers.

Here I'm on a OVH dedicated server with an Intel Xeon D-1520, 4 core at 2.2GHz and with 32GB of RAM. My web server is NGINX.

Is a formula exits or some websites who can calculate this number ?

Thanks a lot!

Aurélien Dupays Dexemple
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Yes You can calculate it based on your cpu and worker connections: like this: Config file:

worker_processes 4; # 2 * Number of CPUs events { worker_connections 19000; # It's the key to high performance - have a lot of connections available } worker_rlimit_nofile 20000; # Each connection needs a filehandle (or 2 if you are proxying) # Total amount of users you can serve = worker_processes * worker_connections

Reference: Tuning nginx worker_process to obtain 100k hits per min

Community
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Piyush Srivastava
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    Sorry I'm late, Thank you very much, that was very useful :) A little tricky to understand the concept of workers but after a lot of readings about web workers it works ! :) – Aurélien Dupays Dexemple Oct 18 '16 at 15:35