Update, June 2004
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 systems.
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
If you would like to be notified of new releases and other developments, please
send your full name, affiliation, mailing address, and preferred email address
to to be added to our mailing list.
Notice: This DCPI Advanced Development Kit (ADK) is
provided as a highly-functional pre-release kit and is subject to change without