User-Level Communication in Cluster-Based Servers
HPCA '02 Proceedings of the 8th International Symposium on High-Performance Computer Architecture
Cooperative Caching Middleware for Cluster-Based Servers
HPDC '01 Proceedings of the 10th IEEE International Symposium on High Performance Distributed Computing
FAST '03 Proceedings of the 2nd USENIX Conference on File and Storage Technologies
Design and implementation of a direct access file system (DAFS) kernel server for FreeBSD
BSDC'02 Proceedings of the BSD Conference 2002 on BSD Conference
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Previous studies show that intra-cluster communication easily becomes a major performance bottleneck for a wide range of small write-sharing workloads especially read-only workloads in modern clustered network servers. A Remote Direct Memory Access (RDMA) technique has been recommended by many researchers to address the problem but how to well utilize RDMA is still in its infancy. This paper proposed a novel solution to boost intra-cluster communication performance by creatively developing a RDMA-enabled collaborative I/O cache Architecture called RAMS, which aims to smartly cache the most recently used RDMA-based intra-cluster data transfer processes for future reuse. RAMS makes two major contributions to facilitate the RDMA deployment: 1) design a novel RDMA-based user-level buffer cache architecture to cache both intra-cluster transferred data and data references; 2) develop three propagated update protocols to attack a RDMA read failure problem. Comprehensive experimental results show that three proposed new update protocols of RAMS can slash the RDMA read failure rate by 75%, and indirectly boost the system throughput by more than 50%, compared with a baseline system using Remote Procedure Call (RPC).