TestEightConcurrentShortLivedProcessesDoNotWarn flaked in a lane's make preflight when the machine load was about 200 on 16 cores: /bin/ps was killed, so the test failed in code the lane did not touch; the rerun passed. A gate that fails on machine load, not on the change, costs a 10-15 minute preflight rerun and teaches lanes to rerun red. Make the test tolerate a killed or timed-out ps (skip with a stated reason, or retry once), or bound what it spawns.

TestEightConcurrentShortLivedProcessesDoNotWarn flaked in a lane's make preflight when the machine load was about 200 on 16 cores: /bin/ps was killed, so the test failed in code the lane did not touch; the rerun passed. A gate that fails on machine load, not on the change, costs a 10-15 minute preflight rerun and teaches lanes to rerun red. Make the test tolerate a killed or timed-out ps (skip with a stated reason, or retry once), or bound what it spawns.

Grounds

• pursued: a preflight at extreme load no longer fails TestEightConcurrentShortLivedProcessesDoNotWarn on a single killed ps run; shown wrong if the test fails again with a ps kill while a later read in the same run would have succeeded