rcvbuf option

Maxim Dounin mdounin at mdounin.ru
Tue Feb 18 21:13:51 UTC 2014


On Tue, Feb 18, 2014 at 02:58:05PM -0500, atarob wrote:

> The config listen option rcvbuf which maps to the TCP SO_RCVBUF, is applied
> to the listening socket, and not inherited by the accept()ed connections. So
> if you have a high load application where the legitimate request is bound to
> be no more than 4K, for instance, you could save a lot of RAM by dropping
> the default here  without changing it at the system level.
> I straced nginx and it does not seem to actually apply the settings through
> a subsequent setsockopt to the accepted socket. Is this intentional or an
> oversight?

What makes you think that SO_RCVBUF is not inherited by accepted 

Maxim Dounin

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