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Cut the CPU the Python tests spend in garbage collection - #2317

Merged

MaxGhenis merged 5 commits into

mainfrom

ci-test-gc-freeze

Oct 12, 2026

Merged

Cut the CPU the Python tests spend in garbage collection#2317
MaxGhenis merged 5 commits into
mainfrom
ci-test-gc-freeze

Commits on Oct 11, 2026
- Freeze the import-time heap and collect less often in the tests
  
  MaxGhenis
  and
  claude
  committed
  cffb372
- Cite the CI measurement of the GC settings in conftest.py
  
  MaxGhenis
  and
  claude
  committed
  057132c
- Keep systems alive past the freeze, guard it, and restore GC state at exit
  
  MaxGhenis
  and
  claude
  committed
  50ebd88
Commits on Oct 12, 2026
- Merge remote-tracking branch 'origin/main' into ci-test-gc-freeze
  MaxGhenis
  committed
  a8ff60f
- Say which frozen objects the freeze keeps, and what unconfigure undoes
  
  MaxGhenis
  and
  claude
  committed
  37cadb4