µProfiler: Profiling User-Level Threads in a Shared-Memory Programming Environment

Authors:
Peter A. Buhr;Robert Denda
Affiliations:
-;-
Venue:
ISCOPE '98 Proceedings of the Second International Symposium on Computing in Object-Oriented Parallel Environments
Year:
1998

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Abstract

A profiler is an important tool for understanding the dynamic behaviour of concurrent programs to locate problems and optimize performance. The best way to improve profiling capabilities and reduce the time to analyze a concurrent program is to use a target-specific profiler that understands the underlying concurrent runtime environment. A profiler for understanding execution of user and kernel level threads is presented, which is target-specific for the µC++ concurrency system. This allows the insertion of hooks into the µC++ data structures and runtime kernel to ensure crucial operations are monitored exactly. Because the profiler is written in µC++ and has an extendible design, it is easy for users to write new metrics and incorporate them into the profiler.