Chris 20d9277ec3 ci: return pull-request build jobs to 2 after an IO-bound timeout at 3 (#8698) ...

The first pull-request run at CARGO_BUILD_JOBS=3 that met a contended
node (39193827281) hit the 75-minute nextest timeout before any test
started. Its sampler shows cargo spinning for 70 minutes with the pod's
io.pressure "full" at 86-88% and cpu.pressure at zero, with node-level
IO pressure already at 36% when the step began: three concurrent
workspace-scale compile units saturate the pod's shared storage, the
mechanism the original #5394 mitigation named. Keep 3 on main pushes and
dispatches, where three runs succeeded, and 2 on pull requests, in both
the nextest and the serial ILM step; pin the ILM budget guard back to
that expression and record the evidence in the step comment.

2026-10-19 17:54:57 +08:00

330 KiB

Executable File

Raw Permalink Blame History

View Raw