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authorJamie Liu <jamieliu@google.com>2021-02-24 11:55:02 -0800
committergVisor bot <gvisor-bot@google.com>2021-02-24 11:56:56 -0800
commitba4dfa7172a00f8b104a75a4655fe3de1e4a94c9 (patch)
tree36b7f2f85e34cf12b89f91e9f48c5a0881fe2c98 /test/syscalls/linux/exec.cc
parent8f6274404a87aa6adb2c8f322b9ee7aae2589fba (diff)
Move //pkg/gate.Gate to //pkg/sync.
- Use atomic add rather than CAS in every Gate method, which is slightly faster in most cases. - Implement Close wakeup using gopark/goready to avoid channel allocation. New benchmarks: name old time/op new time/op delta GateEnterLeave-12 16.7ns ± 1% 10.3ns ± 1% -38.44% (p=0.000 n=9+8) GateClose-12 50.2ns ± 8% 42.4ns ± 6% -15.44% (p=0.000 n=10+10) GateEnterLeaveAsyncClose-12 972ns ± 2% 640ns ± 7% -34.15% (p=0.000 n=9+10) PiperOrigin-RevId: 359336344
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