Nginx Proxy Buffer

[HasanAtizaz]

I am having some difficultly in understanding the following parameters for
nginx,
Scenario (nginx is used for serving static content )

proxy_buffer_size 4k
proxy_buffers 16 32k
proxy_busy_buffers_size 64k
proxy_buffering off

I like to know if i exceed the proxy_buffer_size to lets say 128 and
proxy_buffers to 4 256 does it affects nginx performance in anyway ?

if proxy_buffering is set to off, does proxy_buffers value in anyway has any
affect on nginx ?

Posted at Nginx Forum: https://forum.nginx.org/read.php?2,283126,283126#msg-283126