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Abstract : |
Developers and users of high-performance distributed systems often observe performance problems, the reasons for which are rarely obvious. Bottlenecks can occur in any of the components along the paths through which the data flows: the applications, the operating systems, the hosts, or the network. We have developed a methodology, known as NetLogger, for detailed, end-to-end, top-to-bottom monitoring and analysis of all system components. NetLogger is being added to the data analysis systems that are used at the Stanford Linear Accelerator Center (SLAC) for the BaBar Project, and some initial results are presented in this paper., |
