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test: further limit the concurrency of WPTRunner for RISC-V#64027

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test: further limit the concurrency of WPTRunner for RISC-V#64027
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kxxt:wpt-lower-concurrency-riscv

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@kxxt kxxt commented Jun 20, 2026

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Even when the concurrency of WPTRunner is limited to 10, flaky WPT tests are still observed on RISC-V with Sv39.

For example, test/wpt/test-compression.js failed in https://github.com/riscv-forks/node-riscv/actions/runs/27756747452 and https://github.com/riscv-forks/node-riscv/actions/runs/27544719447, where the cause of the failure is a failing mmap of roughly 8GiB:

[pid 954955] mmap(NULL, 8589996032, PROT_NONE, ...

Further limit the concurrency of WPTRunner to fix flaky tests. See #60591 for the reason of limiting the WPT test concurrency on RISC-V.

CC @nodejs/platform-riscv64

@nodejs-github-bot nodejs-github-bot added needs-ci PRs that need a full CI run. test Issues and PRs related to the tests. labels Jun 20, 2026
Even when the concurrency of WPTRunner is limited to 10, flaky WPT tests
are still observed on RISC-V with Sv39.

For example, test/wpt/test-compression.js failed in
https://github.com/riscv-forks/node-riscv/actions/runs/27756747452 and
https://github.com/riscv-forks/node-riscv/actions/runs/27544719447,
where the cause of the failure is a failing `mmap` of roughly 8GiB:

    [pid 954955] mmap(NULL, 8589996032, PROT_NONE, ...

Further limit the concurrency of WPTRunner to fix flaky tests.
See nodejs#60591 for the reason of limiting the WPT test concurrency on
RISC-V.

Signed-off-by: Levi Zim <rsworktech@outlook.com>
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