2020-08-11 Triage Log

See the README for details on how this log was gathered.

Triage done by simulacrum. Revision range: 19cefa68640843956eedd86227ddc1d35dbc6754..8b84156c6ee2b4e707dc32f5a516e3143ab924d3

1 regression, 1 improvement, 1 of them on rollups. 0 outstanding nags from last week.

Regressions

• Rollup of 5 pull requests #75174 (instructions) Slight loss, up to 1%. Unclear if spurious. Likely caused by Replace Memoryblock with NonNull<[u8]> #75152.

Improvements

• Remove two fields from SubstFolder #75133 (instructions) Up to 2% wins on wf-projection stress test.

New nags to follow up on

• #75174