HP DCPI tool

»

DCPI

Site information

» Send us your comments

Installation

» Download DCPI
» Installing DCPI

Product information

» Frequently asked questions
» Documentation
» Publications
customer times newsletter link
Update, June 2004

» DCPI kit V4.0.1 for Tru64 UNIX available for download
» Before you install
» Frequently asked questions
» Documentation

Overview

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 D-cache miss.

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 notice.