Default access_log buffering

I was reading an article on performance on the Nginx site:
Tuning NGINX for Performance - NGINX One thing mentioned was
enabling
buffering on the access_log.

However, the directive reference
(Module ngx_http_log_module) says
that the default buffer size is 64 KB. Does this mean that buffering is
enabled by default, with a size of 64 KB, or that if the buffer is
enabled
without a specified size, it will be 64 KB?

Posted at Nginx Forum:

Hello!

On Wed, Jul 29, 2015 at 02:55:54PM -0400, doolli_doug wrote:

I was reading an article on performance on the Nginx site:
NGINX | F5 One thing mentioned was enabling
buffering on the access_log.

However, the directive reference
(Module ngx_http_log_module) says
that the default buffer size is 64 KB. Does this mean that buffering is
enabled by default, with a size of 64 KB, or that if the buffer is enabled
without a specified size, it will be 64 KB?

The default buffer size the documentation talks about is one used
if you enable the “gzip” parameter, but don’t specify buffer size
explicitly.

–
Maxim D.