Performance Evaluation of Locality in SSDLM for Distributed Lock Management

H. Kishida and H. Yamazaki (Japan)


Cluster system, transaction, distributed lock manager, lock locality, experimental evaluation


There are few cluster systems that have transactional capability with distributed lock managers to provide a single system image. We proposed a distributed lock manager architecture called SSDLM [23] for a transactional cluster system, which is based on self management of shared locks in a node to decrease lock management processing time in a cluster system. In this paper, we perform further evaluation on SSDLM using two types of transaction loads with more experimental parameters and the three kinds of metrics of lock operation throughput, transaction response time and lock response time. Although node scalability is not obtained so much in our experiments, the evaluation results show that the locality of managing shared locks in SSDLM is effective for all our experiments to increase performances in terms of the metrics especially for read intensive transactions and in heavy load conditions as well.

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