2021-04-13 Triage Log

A very quiet week overall.

Triage done by @simulacrum. Revision range: d32238532138485c80db4f2cd596372bce214e00..5258a74c887f8ae14717e1f98b652b470877ce4e

1 Regressions, 0 Improvements, 0 Mixed 0 of them in rollups

Regressions

Update stdarch submodule (to before it switched to const generics) #83776

• Large regression in instruction counts (up to 6.3% on incr-unchanged builds of deeply-nested-closures-debug)
• Mostly a regression for doc benchmarks, but also a 1.5% regression in memory usage on check, debug, and opt builds across all benchmarks.

Improvements

• None

Mixed

• None

Nags requiring follow up

• The issue from three weeks ago has stalled. Likely this needs someone to mentor the author, or to take over the investigation.