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Ran 15 Dec 2017 09:28PM UTC

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Committed 15 Dec 2017 09:26PM UTC coverage: 95.374% (-0.02%) from 95.398%

Job # 1042.2

Build Type

push

travis-ci

Committed by

mvdan

Commit Message

interp: skip kill goroutine if it's useless

If the context has no Done channel (such as context.Background), the
fired goroutine will simply block forever and waste resources.

This shows very clearly in the benchmark.

name   old time/op    new time/op    delta
Run-4    1.41ms ± 2%    1.27ms ± 0%  -10.28%  (p=0.002 n=6+6)

name   old alloc/op   new alloc/op   delta
Run-4     143kB ± 0%     142kB ± 0%   -0.49%  (p=0.004 n=5+6)

name   old allocs/op  new allocs/op  delta
Run-4       481 ± 0%       479 ± 0%   -0.42%  (p=0.026 n=5+6)

Coverage Stats

6721 of 7047 relevant lines covered (95.37%)

1110.65 hits per line

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master: 78%

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