| commit | 0cc1290174751971d282196e21ec9037b217e5a5 | [log] [tgz] |
|---|---|---|
| author | Andy Pan <panjf2000@gmail.com> | Fri Mar 27 03:21:17 2020 +0000 |
| committer | Ian Lance Taylor <iant@golang.org> | Fri Mar 27 17:14:16 2020 +0000 |
| tree | b6d5698c1c4bc33df60d0259187d225326721cfd | |
| parent | e4a1cf8a5698d7351af0e33d61e4f7078f3ab1ce [diff] |
runtime: converge duplicate calls to netpollBreak into one There might be some concurrent (maybe not concurrent, just sequential but in a short time window) and duplicate calls to `netpollBreak`, trying to wake up a net-poller. If one has called `netpollBreak` and that waking event hasn't been received by epollwait/kevent/..., then the subsequent calls of `netpollBreak` ought to be ignored or in other words, these calls should be converged into one. Benchmarks go1.13.5 darwin/amd64: benchmark-func time/op (old) time/op (new) delta BenchmarkNetpollBreak-4 29668ns ±1% 3131ns ±2% -89.45% mem/B (old) mem/B (new) delta 154B ±13% 0B ±0% -100% Change-Id: I3cf757a5d6edc5a99adad7aea3baee4b7f2a8f5c GitHub-Last-Rev: 15bcfbab8a5db51f65da01315a5880a5dbf9e028 GitHub-Pull-Request: golang/go#36294 Reviewed-on: https://go-review.googlesource.com/c/go/+/212737 Run-TryBot: Emmanuel Odeke <emm.odeke@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
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