Quantify provides accurate, repeatable performance data for your C and C++ applications and, on Tru64 UNIX, for your FORTRAN 77 and FORTRAN 90 applications as well. This help system documents how to use Quantify to improve the performance of your applications.
Quantify can also collect performance data for Java applications; for information, click
Using Rational Quantify you can:
Locate
and fix the problems that are the most likely to be the cause of poor
performance. Quantify instruments and returns performance data for all
the code in your application, including system and third-party libraries,
shared libraries, and statically linked modules.
Compare "before" and "after"
runs to see the impact of your changes on performance.
Incorporate
Quantify into your development process by adding a single word
to your makefile and relinking. You don't need to recompile to use it,
and you can use it on the exact code you expect to ship. Quantify works
with existing makefiles, debugging tools and standard testing scripts.
Use Quantify options and API
functions to collect data for a small portion of a run or for an entire
run.
Unlike sampling-based profilers, Quantify does not include any overhead in the data it reports. The numbers you see represent the time your program would take without Quantify.
More information?
The Installing and Getting Started manual describes a sample session with Quantify, showing how to collect and analyze data. The manual also includes information about installation and licensing.
For technical information about Quantify, answers to common questions, and information about other Rational Software products, visit the Rational Software web site at http://www.rational.com/
A printable Quantify Quick Reference is included in the product documentation directory in pdf format.
© 2002 Rational Software Corporation. All Rights Reserved.
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