[issue38699] socket: change listen() default backlog from 128 to 4096?

[Nathaniel Smith]

Nathaniel Smith <njs at pobox.com> added the comment:

Trio uses 65535 as the default backlog argument. There's a big comment here explaining why: https://github.com/python-trio/trio/blob/master/trio/_highlevel_open_tcp_listeners.py

This doesn't actually set the backlog to 65635; instead it tells the kernel to use the biggest backlog that it feels comfortable with (e.g. /proc/sys/net/core/somaxconn on Linux).

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