Expected Runtime

Definition ∞ Expected runtime represents the average duration or computational steps anticipated for an algorithm or process to complete its execution. In the context of blockchain protocols, this often refers to the average time required for a transaction to be confirmed or for a consensus round to conclude. It provides a statistical measure of a system’s efficiency and responsiveness. This metric is a key performance indicator for decentralized networks.
Context ∞ Optimizing expected runtime is a central goal in blockchain scalability research, aiming to improve transaction processing speeds without compromising security. Discussions frequently compare the expected runtimes of different consensus mechanisms, such as Proof of Work versus Proof of Stake. News often highlights protocol upgrades that promise reduced transaction times, directly relating to improvements in expected runtime.