Concurrency Control / Performance
Kind: tension
Record: tension:concurrency-control-performance
Canonical: Schema
"concurrency-control" (atomic-boundary layer) is traded against "Performance" (performance-core layer) — a principle cannot be scope-separated from a quality, metric, or cost it competes with; resolve by measuring "Performance" and choosing an explicit operating point.
Listed in Tensions, after Isolation / Throughput and before Optimistic Locking / Retry Complexity.