Skip to content

ci(memory): widen test_memory_json_churn RSS budget for #1090 GC rework #1286

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
proggeramlug merged 1 commit into from
May 21, 2026
Merged

ci(memory): widen test_memory_json_churn RSS budget for #1090 GC rework #1286

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
17 changes: 9 additions & 8 deletions scripts/run_memory_stability_tests.sh
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1550,14 +1550,15 @@ echo "=== Memory-leak regression tests (RSS plateau under sustained alloc) ==="
# Limits ~50-70% above measured baseline on macOS arm64. CI runners
# may differ slightly; loosen a limit here rather than in the .ts.
run_test test-files/test_memory_long_lived_loop.ts 100 "done, lastId=199999"
# JSON churn stays at 250 MB for default/mark-sweep/gen-gc. On macOS
# arm64, force-evac+verify has a stable tape+verifier high-water after
# tape scratch/key-cache cleanup: default/gen-gc 240 MB, mark-sweep 90 MB,
# force-evac+verify 262 MB, verifier direct parse (PERRY_JSON_TAPE=0)
# 189 MB, forced tape 261 MB. Trace stayed in copied-minor mode with
# fallback_reason=none, conservative pins=0, copy-only roots/bytes=0, and
# old-page allocated/live/reusable/returned bytes=0.
run_test test-files/test_memory_json_churn.ts 250 "done, checksum=637747500" 275
# JSON churn — temporarily widened to 290 MB / 315 MB for the GC rework
# tracked under #1090 (`GC roadmap: make minor GC structurally cheap`).
# Observed v0.5.1019 Ubuntu CI: default 268 MB, gen-gc 268 MB, mark-sweep
# 114 MB, force-evac+verify 290 MB — consistently ~28 MB above macOS arm64
# baselines (default 241 MB / mark-sweep 91 MB / force-evac 263 MB measured
# 2026-05-21 on M-series). The Linux glibc allocator + page-size accounting
# explain most of that gap; the rest is GC-rework working-set drift that
# will be reclaimed once #1090 lands. Revisit + tighten when #1090 closes.
run_test test-files/test_memory_json_churn.ts 290 "done, checksum=637747500" 315
run_test test-files/test_memory_string_churn.ts 100 "done, total=9577780"
run_test test-files/test_memory_closure_churn.ts 50 "done, sum=15004649874"

Expand Down