Nginx Support Connection Number problem

According to some people on the web said Nginx configuration:

The maximum number of connections supported by Nginx is related to the following factors:

Worker_processes  11024x768-A display open file:1024x768

But after testing, the results are as follows:

Cpu:6 nucleus ( found by Cat/proc/cpuinfo |grep "cores" |uniq command )

Maximum system connections: 1024 (from Ulimit-a)

Test concurrent Machine: 1, Access test with siege tool

Worker_processes	Worker_connections	Actual number of connections
2	1024	1018
3	341	722
2	512	1020
2	32	64
3	32	95
4	32	96
5	32	67
6	32	68
6	32	128
6	64	194
6	100	242

According to the results we can see, (Nginx supports the maximum number of connections =worker_processes*worker_connections, of course, I added the process count process, so accurate statistics to subtract)

The worker_processes of the Internet is better than the CPU number, which is not entirely applicable; When worker_processes=6, the result is uncertain;

On the contrary, surprisingly stable when worker_processes=2.

Nginx Support Connection Number problem