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This article describes the Digital Continuous Profiling Infrastructure, a sampling-based profiling system designed to run continuously on production systems. The system supports multiprocessors, works on unmodified executables, and collects profiles for entire systems, including user programs, shared libraries, and the operating system kernel. Samples are… (More)
Over the past two years, the Digital Continuous Profiling Infrastructure (DCPI) research project at Compaq's Systems Research Center and Western Research Lab has been exploring new ways of profiling computer systems. We have developed the DCPI tools, a suite of software profiling tools that provide transparent, low-overhead (0.5%-3.0% slowdown) profiling of… (More)
the BGP TCP analysis. Finally, we thank Gary Delp and the anonymous SIGCOMM '98 reviewers for their helpful and constructive comments.