PNBOA: A Petri Net-Based Performance Optimization Approach for Blockchain Business Systems

The CAP (Consistence, Availability, Network partitioning) theorem of distributed system determines that the blockchain system cannot guarantee the high availability of the system under the premise of data consistency and partition fault tolerance, which makes it difficult for blockchain-based decentralized application (DApp) systems to deliver as high performance as the classical centralized systems can offer. The performance bottleneck of blockchain applications is an important factor that hinders the implementation of blockchain applications, and how to improve the performance of blockchain system is an important part to improve the blockchain ecology nowadays. However, most of the current optimization algorithms for business flow focus on the business flow itself, and rarely pay attention to the role of the system on business optimization, but the emergence of business flow based on distributed system (blockchain) gives more room for business flow optimization. This paper proposes a performance optimization scheme based on Petri Net combined with blockchain business flow (PNBOA), and simulation experiments show that the scheme can effectively improve the reliability of the system and increase the throughput of the blockchain by 21.2% on the consortium chain system.