We use a form of dynamic code generation, called dynamic instrumentation, to collect data about the execution of an application program. Dynamic instrumentation allows us to instrument running programs to collect performance and other types of information. The instrumentation code is generated incrementally and can be inserted and removed at any time. Our instrumentation currently runs on the SPARC, PA-RISC, Power2, Alpha, and x86 architectures. SpeciJication of what data to collect are written in a specialized language called the Metric Description Language, that is part of the Paradyn Parallel Performance Tools. This language allows platform-independent descriptions of how to collect pei$ormance data. It also provides a concise way to specifjl how to constrain performance data to particular resources such as modules, procedures, nodes, files, or message channels (or combinations of these resources). We also describe the details of how we weave instrumentation into a running program.
-Another language for program instrumentation is the Metric Description Language (MDL) REF .
MDL: a language and compiler for dynamic program instrumentation
Proceedings 1997 International Conference on Parallel Architectures and Compilation Techniques
Proceedings 1997 International Conference on Parallel Architectures and Compilation Techniques
Computer Science