Sébastien Paolacci
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7014bc64b1
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net: spread fd over several pollservers.
Lighten contention without preventing further improvements on pollservers.
Connections are spread over Min(GOMAXPROCS, NumCPU, 8) pollserver instances.
Median of 10 runs, 4 cores @ 3.4GHz, amd/linux-3.2:
BenchmarkTCPOneShot 171917 ns/op 175194 ns/op 1.91%
BenchmarkTCPOneShot-2 101413 ns/op 109462 ns/op 7.94%
BenchmarkTCPOneShot-4 91796 ns/op 35712 ns/op -61.10%
BenchmarkTCPOneShot-6 90938 ns/op 30607 ns/op -66.34%
BenchmarkTCPOneShot-8 90374 ns/op 29150 ns/op -67.75%
BenchmarkTCPOneShot-16 101089 ns/op 111526 ns/op 10.32%
BenchmarkTCPOneShotTimeout 174986 ns/op 178606 ns/op 2.07%
BenchmarkTCPOneShotTimeout-2 101585 ns/op 110678 ns/op 8.95%
BenchmarkTCPOneShotTimeout-4 91547 ns/op 35931 ns/op -60.75%
BenchmarkTCPOneShotTimeout-6 91496 ns/op 31019 ns/op -66.10%
BenchmarkTCPOneShotTimeout-8 90670 ns/op 29531 ns/op -67.43%
BenchmarkTCPOneShotTimeout-16 101013 ns/op 106026 ns/op 4.96%
BenchmarkTCPPersistent 51731 ns/op 53324 ns/op 3.08%
BenchmarkTCPPersistent-2 32888 ns/op 30678 ns/op -6.72%
BenchmarkTCPPersistent-4 25751 ns/op 15595 ns/op -39.44%
BenchmarkTCPPersistent-6 26737 ns/op 9805 ns/op -63.33%
BenchmarkTCPPersistent-8 26850 ns/op 9730 ns/op -63.76%
BenchmarkTCPPersistent-16 104449 ns/op 102838 ns/op -1.54%
BenchmarkTCPPersistentTimeout 51806 ns/op 53281 ns/op 2.85%
BenchmarkTCPPersistentTimeout-2 32956 ns/op 30895 ns/op -6.25%
BenchmarkTCPPersistentTimeout-4 25994 ns/op 18111 ns/op -30.33%
BenchmarkTCPPersistentTimeout-6 26679 ns/op 9846 ns/op -63.09%
BenchmarkTCPPersistentTimeout-8 26810 ns/op 9727 ns/op -63.72%
BenchmarkTCPPersistentTimeout-16 101652 ns/op 104410 ns/op 2.71%
R=rsc, dvyukov, dave, mikioh.mikioh, bradfitz, remyoudompheng
CC=golang-dev
https://golang.org/cl/6496054
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2012-09-26 15:32:59 -04:00 |
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