runtime: integrated network poller for darwin
vs tip:
benchmark old ns/op new ns/op delta
BenchmarkTCP4Persistent 67786 33175 -51.06%
BenchmarkTCP4Persistent-2 49085 31227 -36.38%
BenchmarkTCP4PersistentTimeout 69265 32565 -52.98%
BenchmarkTCP4PersistentTimeout-2 49217 32588 -33.79%
vs old scheduler:
benchmark old ns/op new ns/op delta
BenchmarkTCP4Persistent 63517 33175 -47.77%
BenchmarkTCP4Persistent-2 54760 31227 -42.97%
BenchmarkTCP4PersistentTimeout 63234 32565 -48.50%
BenchmarkTCP4PersistentTimeout-2 56956 32588 -42.78%
R=golang-dev, bradfitz, devon.odell, mikioh.mikioh, iant, rsc
CC=golang-dev, pabuhr
https://golang.org/cl/
7569043