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WIESS 2000 Abstract
HP Caliper—An
Architecture for Performance Analysis Tools
Robert Hundt, Hewlett-Packard Company
Abstract
HP Caliper is an architecture for software
developer tools that deal with executable (binary) programs. It
provides a common framework that allows building of a wide variety of
tools for doing performance analysis, profiling, coverage analysis,
correctness checking, and testing. HP Caliper uses a technology known
as dynamic instrumentation, which allows program instructions to be
changed on-the-fly with instrumentation probes. Dynamic
instrumentation makes HP Caliper easy to use: It requires no special
preparation of an application, supports shared libraries, collects
data for multiple threads, and has low intrusion and overhead. This
paper describes HP Caliper for HP-UX, running on the IA-64 (Itanium)
processor. It describes Caliper's architecture, dynamic
instrumentation algorithm, and the experiences gathered during its
implementation.
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