On 2026-09-30 three hung test binaries held all three slots for up to an hour
at ~2% CPU while Yggdrasil sat at load 1.5 of 16. The operator wants
Yggdrasil pinned. CPU caps now oversubscribe on purpose (jobs run niced);
memory is the ceiling, so the per-job cap drops to 8 GiB. The watchdog samples
docker stats each minute and kills a container under 5% of a core for IDLE
seconds (default 900), reporting it red.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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