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runtime: TestSelectFairness failures with "unfair select" #52465
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The "six nines" requires less than 244 out of 10000 trials however the fail logs shows 5245,5253,5246. |
Found new dashboard test flakes for:
2022-11-18 17:59 linux-386-buster go@b2faff18 runtime.TestSelectFairness (log)
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Found new dashboard test flakes for:
2023-07-31 17:13 netbsd-386-9_3 go@4a14d9c9 runtime.TestSelectFairness (log)
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This last one looks to be about a 1 in a million chance of being that unbalanced (258 extra heads above the expected 5000 out of 10000 trials). |
Found new dashboard test flakes for:
2023-10-12 20:11 darwin-amd64-10_15 go@15a274b6 runtime.TestSelectFairness (log)
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Change https://go.dev/cl/538815 mentions this issue: |
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.
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