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[release/9.0-staging] Give the nested process chain in ProcessWaitingTests depth-proportional wait budgets - #135632
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ViveliDuCh merged 1 commit intoOct 12, 2026
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…al wait budgets (#135608) Fixes #118977 ## Problem `ProcessWaitingTests.WaitChain` and `WaitAsyncChain` start a four-deep chain of `RemoteExecutor` processes, and every level waits with the same `WaitInMS`. The root's wait has to cover the start-up, work and exit of all four processes while the leaf's covers one, so the root has the leaf's budget while covering four lifetimes. ## Change Give each waiter `WaitInMS` per process beneath it: leaf 1×, then 2×, 3× and 4× at the root. > [!NOTE] > This PR was prepared with AI assistance (Anthropic Claude, checked by OpenAI Codex) at my request. I reviewed the change and the measurements before opening it.
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This was referenced Oct 12, 2026
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Oct 12, 2026
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Fixes #118977
main PR #135608
Backport to
release/9.0-staging./cc @ViveliDuCh @pcshrosbree
Description
The same
WaitChain/WaitAsyncChaintimeout failure seen in main also occurred inrelease/9.0. Scale each wait budget by the number of nested processes it covers.Customer Impact
Intermittent CI test failures; no product behavior change.
Regression
Existing test timeout issue; no known product regression.
Testing
#135608 reports both chain tests passing on Windows x86, Linux x64, and macOS arm64. No additional local tests run for this backport; CI is still in progress and currently has failures.
Risk
Low: test-only timeout adjustment. Assertions and product code are unchanged.