Definition ∞ Consensus protocol latency measures the time delay required for a distributed network to agree on the validity and order of transactions. This metric quantifies the duration from when a transaction is initiated until it is irreversibly added to the blockchain and acknowledged by the majority of network participants. Lower latency indicates faster transaction finality, which is essential for applications demanding rapid settlement. It directly impacts the user experience and the practical utility of a blockchain for real-time operations.
Context ∞ Reducing consensus protocol latency is a significant area of research and development for many layer-one blockchain solutions seeking to compete with traditional financial systems. The balance between low latency, strong security, and decentralization is a continuous discussion point within protocol design. Upcoming protocol upgrades and layer-two scaling solutions often prioritize minimizing this delay to support higher transaction volumes and broader application use cases.