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runtime: TestSelectFairness failures with "unfair select" #52465

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bcmills opened this issue Apr 21, 2022 · 1 comment
Open

runtime: TestSelectFairness failures with "unfair select" #52465

bcmills opened this issue Apr 21, 2022 · 1 comment
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@bcmills
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@bcmills bcmills commented Apr 21, 2022

greplogs --dashboard -md -l -e 'FAIL: TestSelectFairness .*(?:\n .*)*unfair select'

2022-04-20T16:05:16-338a817/illumos-amd64
2022-03-23T19:31:43-2792a41/netbsd-386-9_0
2020-08-19T00:10:22-98a0071/js-wasm

@golang/runtime: the comment for this test suggests that it has a confidence level of “six nines”, which would be one spurious failure per ~1M runs. Is it still in line with that target?

See previously #34808, #22047.

@bcmills bcmills added this to the Backlog milestone Apr 21, 2022
@mengzhuo
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@mengzhuo mengzhuo commented Apr 22, 2022

The "six nines" requires less than 244 out of 10000 trials however the fail logs shows 5245,5253,5246.

@thanm thanm added the NeedsInvestigation label Apr 22, 2022
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