Update, June 2004
» DCPI kit V4.0.1 for Tru64 UNIX available for download
» Before you install
» Frequently asked questions
The HP Digital Continuous Profiling Infrastructure (DCPI) Advanced Development Kit for HP Alpha platforms permits continuous low-overhead profiling of entire systems, including the kernel, user
programs, drivers, and shared libraries. The system is efficient enough that it can be left running all the time, allowing it to be used to drive online profile-based optimizations for production
The Continuous Profiling Infrastructure maintains a database of profile information that is incrementally updated for every executable image that runs. A suite of profile analysis tools analyzes the
profile information at various levels. At one extreme, the tools show what fraction of cpu cycles were spent executing the kernel and each user program. At the other extreme, the tools show how long
a particular instruction stalls on average, for example, because of a D-cache miss.
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Notice: This DCPI Advanced Development Kit (ADK) is provided as a highly-functional pre-release kit and is subject to change without notice.