How To Increase Memories in Nginx?

Hello,

I've got troubleshoot with Nginx web server.
how could we increase kmemsize limit?

and what's the max limit configuration for such as:

worker_processes 5;
worker_connections 4096;

lient_max_body_size 10m;
client_body_buffer_size 128k;
proxy_connect_timeout 90;
proxy_send_timeout 90;
proxy_read_timeout 90;
proxy_buffers 32 4k;

what's the max size for this can we use?
anyone can help on this?


Thanks