oetiker/rrdtool-1.x — pull request #552 by stevenh (2014-10-30 15:54:21+00:00)
Title: Increase listen backlog to deal with request spikes

In order to deal with transient request spikes don't limit the connection backlog to 10 instead use a default appropriate to the OS.

For FreeBSD and Mac OS this is -1 (system default) for everything else this is 511 which will get truncated back to the OS max.