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test(fetch-leak): keep the RSS leak thresholds clear of measurement noise - #37209

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claude/fetch-leak-test-noise
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test(fetch-leak): keep the RSS leak thresholds clear of measurement noise#37209
dylan-conway wants to merge 5 commits into
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claude/fetch-leak-test-noise

test(fetch-leak): scale the ASAN HiveRef bound with the smaller signa…

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Claude / Claude Code Review completed Aug 8, 2026 in 13m 14s

Code review found 1 important issue

Found 2 candidates, confirmed 1. See review comments for details.

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Severity Count
🔴 Important 1
🟡 Nit 0
🟣 Pre-existing 0
Severity File:Line Issue
🔴 Important test/js/web/fetch/fetch-leak.test.ts:755-761 readable-stream ASAN allowance (64 MiB) exceeds the ~32 MiB leak signal

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Check failure on line 761 in test/js/web/fetch/fetch-leak.test.ts

See this annotation in the file changed.

@claude claude / Claude Code Review

readable-stream ASAN allowance (64 MiB) exceeds the ~32 MiB leak signal

The ASAN branch here is still `"64"`, but the new comment two lines up computes the guarded regression's signal as ~32 MiB — so under `bun-asan` the reintroduced #23697 leak (~36-40 MiB with the capped quarantine) would pass this check. This is the same class as the HiveRef 320 > 256 threshold this PR just fixed in 23d51ac; the ASAN allowance here should also sit below its 32 MiB signal (e.g. `isASAN ? "24" : "20"`, or drop the branch since quarantine is already capped).