NoC topology, flow control, and virtual channels as coherency critical paths.
Focus on mechanism-level reasoning over memorized templates.
Map every claim to a measurable metric and artifact.
Practice staff-grade communication through structured review language.
virtual-networks-and-deadlock-avoidance/ — Virtual Networks and Deadlock Avoidance
multicast-filtering-and-snoop-pruning/ — Multicast Filtering and Snoop Pruning
qos-fairness-and-coherency-latency/ — QoS, Fairness, and Coherency Latency
Cache coherence is a correctness contract across caches, interconnect, and software ordering.
requester -> coherence fabric -> owner or memory -> state updatetraffic mix across request, snoop, response, datacoherence latency
invalidation rate
retry rate
stale-read incidents
Anchor debug to first stale read and the exact line state transition.
Track ownership
Track ordering
Track evidence
Ask: what is the first line state transition that deviates, and which ordering rule does it break?