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gc: Perry-owned memory for GC arena blocks (2 MiB OS regions, huge pages by complete units) - #12132

Merged

proggeramlug merged 6 commits into

mainfrom

perf/gc-region-manager

Oct 7, 2026

Merged

gc: Perry-owned memory for GC arena blocks (2 MiB OS regions, huge pages by complete units)#12132
proggeramlug merged 6 commits into
mainfrom
perf/gc-region-manager

Commits on Oct 7, 2026
- gc: back GC arena blocks with OS regions
  Ralph Küpper
  committed
  317fb07
- gc: derive census bitmap capacity from block size
  Ralph Küpper
  committed
  8c9419e
- gc: a parse bump never lowers the armed whole-arena trigger
  Ralph Küpper
  committed
  464add9
- gc: two MiB GC blocks; huge pages chosen by complete units
  Ralph Küpper
  committed
  b388e94
- Restore GC root scanners in the stream churn test
  Ralph Küpper
  committed
  7961e37
- changelog: name the fragment for #12132
  Ralph Küpper
  committed
  0ec09df