Previously ran unpinned (affinity mask 0xff) across all 8 cores. When it
landed on core 4 (controlsd) or 5 (plannerd/radard) or 7 (modeld), its
70MB/s frame copies and MP4 muxing caused cache/memory-bandwidth
contention with the RT-pinned processes. SCHED_FIFO prevented direct
preemption but not the cache thrash.
OMX offloads actual H.264 work to hardware so the main thread is
lightweight — fine on the little cluster.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Brian Hanson
6dede984dc