Nginx CPU Parameters worker_processes and worker_cpu_affinity instructions for use

Nginx does not turn on using multicore CPUs by default, we can make full use of multicore CPUs by adding worker_cpu_affinity configuration parameters. CPU is the task processing, compute the most critical resources, the more CPU cores, the better performance.

Worker_cpu_affinity This parameter should be used together with worker_processes.

First say worker_processes:

Worker_processes indicates the number of processes Nginx will open, according to the official statement, generally open one is enough, open a few more, can reduce the impact of machine IO. Typically 1 to twice times the total CPU core of the current machine. For example, my machine is dual core, then open 4 is enough.

Then say worker_cpu_affinity:

Worker_processes 4;  Worker_cpu_affinity 0001 0010 0100 1000;  

The above example shows that 4 processes are turned on, and each process is assigned a CPU

The most critical place is not clear, how to represent each CPU?

Well, the 16-core CPU per process assigned to a CPU should be

View CPU status on the server being tested
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Then press 1 to see each CPU information

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Nginx CPU Parameters worker_processes and worker_cpu_affinity instructions for use