Performance Analysis of iSCSI and Effect of CRC Computation
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چکیده
The iSCSI protocol is a key building block for enabling IP-based network storage. High performance iSCSI implementation that can support multi-gigabit storage traffic throughput is important in facilitating the widespread deployment of this technology. In this paper, we analyze the performance of the iSCSI protocol software stack on production servers based on Intel® XeonTM processors. We analyze the scalability characteristics of iSCSI on both uniprocessor (UP) and symmetric multiprocessor (SMP) modes and find that iSCSI does not scale well to SMP. We also analyze the overhead of CRC (cyclic redundancy check) computation, which imposes a substantial overhead on iSCSI, making it an important packet processing building block for providing data integrity.
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تاریخ انتشار 2004