go /
go /
c01238a571769f12a9c2bb971d26fe27c4158530 net: don't loop to drain wakeup pipe.
The loop always makes an extra system call. It only makes a
difference if more than 100 goroutines started waiting for
something to happen on a network file descriptor since the
last time the pipe was drained, which is unlikely since we
will be woken up the first time a goroutine starts waiting.
If we don't drain the pipe this time, we'll be woken up again
right away and can drain again.
R=rsc
CC=golang-dev
https://golang.org/cl/4275042
1 file changed
