docs(gen-gc): sizing, tuning & integration#8
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Capture the sizing parameters for the generational GC extension: toy minor_size = 256 B for verification testing vs OCaml's production default of 2 MB; configuration mechanism (val pattern matching heap_size in GC.Spec.Base); Max_young_wosize = 256 words kept matching OCaml 4. Stage 4 deliverable: OCAMLRUNPARAM read-at-init for minor_size on the OCaml-integration harness. Survival-rate measurement plan. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Summary
Design-doc PR (Unit 5 of 5) for the generational GC extension. Captures the sizing parameters: toy minor_size = 256 B for verification testing (~8000x more minor collects than 2 MB for the same allocation volume) vs OCaml's production default 2 MB; the configuration mechanism (val pattern matching heap_size in GC.Spec.Base); Max_young_wosize = 256 words kept matching OCaml 4. Stage 4 deliverable: OCAMLRUNPARAM read-at-init for minor_size on the OCaml-integration harness, defaulting to 2 MB. Survival-rate measurement plan included.
No code changes — markdown-only.
Test plan
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