nginx进程数和worker_cpu_affinity参数设置

nginx进程数和worker_cpu_affinity参数设置，nginx 进程数，建议按照cpu 数目来指定，一般为它的倍数。

配置1：4核心+4个进程 (每个worker_processes 使用1个CPU)

//查看CPU核心数

[reistlin@reistlin.com ~]$ cat /proc/cpuinfo | grep processor
processor       : 0
processor       : 1
processor       : 2
processor       : 3

//配置nginx进程数和worker_cpu_affinity设置（为每个进程分配cpu，上例中将4 个进程分配到4 个cpu，当然可以写多个，或者将一个进程分配到多个cpu。）

worker_processes 4;
worker_cpu_affinity 0001 0010 0100 1000;

或者还可以

worker_processes 8;
worker_cpu_affinity 0001 0010 0100 1000 0001 0010 0100 1000;

配置2：8核心+8个进程(每个worker_processes 使用1个CPU)

[reistlin@reistlin.com ~]$ cat /proc/cpuinfo | grep processor
processor       : 0
processor       : 1
processor       : 2
processor       : 3
processor       : 4
processor       : 5
processor       : 6
processor       : 7

worker_processes 8;
worker_cpu_affinity 00000001 00000010 00000100 00001000 00010000 00100000 01000000 10000000;

配置3：16核心+16个进程(每个worker_processes 使用1个CPU)

[reistlin@reistlin.com ~]$ cat /proc/cpuinfo | grep processor
processor       : 0
processor       : 1
processor       : 2
processor       : 3
processor       : 4
processor       : 5
processor       : 6
processor       : 7
processor       : 8
processor       : 9
processor       : 10
processor       : 11
processor       : 12
processor       : 13
processor       : 14
processor       : 15

worker_processes 16;
worker_cpu_affinity 0000000000000001 0000000000000010 0000000000000100 0000000000001000 0000000000010000 0000000000100000 0000000001000000 0000000010000000 0000000100000000 0000001000000000 0000010000000000 0000100000000000 0001000000000000 0010000000000000 0100000000000000 1000000000000000;