Nginx – the Ideal value for Worker Processes in Nginx Config

configurationnginxoptimizationUbuntu

I have 31GB RAM 8 Core Web Server with current load of 3k per min.

Currently worker_processes parameter in nginx config is 4 which as per my understanding means only 4 cores would be used. But when I see CPU performance I see that all 8 cores have equal load. Why?

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Moreover, making this value 8 would help in my case?

Best Answer

Some other programs uses cpu, like php maybe? Paste all your top output, not only your cpu, but programs too. Turn on visibility of threads too... (H key, if I remember correctly.)

Related Solutions

Nginx Debugging – How to Dump HTTP Requests

Adjust the number of pre/post lines (-B and -A args) as needed:

tcpdump -n -S -s 0 -A 'tcp dst port 80' | grep -B3 -A10 "GET /url"

This lets you get the HTTP requests you want, on the box, without generating a huge PCAP file that you have to offload somewhere else.

Keep in mind, that the BPF filter is never exact, if there are a large number of packets flowing through any box, BPF can and will drop packets.

NGINX: How to calculate an optimal no. of worker processes and worker connections

You can have a look a this blog post: http://www.alfajango.com/blog/performance-tuning-for-phusion-passenger-an-introduction/ which will explain how to calculate it

Best Answer

Related Solutions

Nginx Debugging – How to Dump HTTP Requests

NGINX: How to calculate an optimal no. of worker processes and worker connections

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