Performance research of blockchain system oriented to data center network structure
As a second-generation blockchain technology,Ethereum introduces the smart contract mechanism,leading to the e-mergence of numerous decentralized applications(DApps)that are widely applied in various industries.This paper focused on typical data center networks(DCNs),studying the differences in the performance of blockchain operations under different un-derlying network topologies.To achieve low-resource consumption simulation of real data center networks,containerization tech-nology was combined with Open vSwitch technology,and a blockchain simulation and emulation platform was designed.Based on this simulation platform,Fat-Tree,BCube,Torus,and Hypercube topology blockchain networks were built,miners nodes were de-ployed,and the performance differences in average transaction latency and throughput under different underlying network topolo-gies were evaluated.The evaluation results showed that using the platform to simulate a controlled network environment in a data center,when the number of miner nodes was 8,the Torus network structure outperformed the other three topologies in terms of transaction latency and throughput.
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