profiler : Java Glossary

by Roedy Green ©1996-2008 Canadian Mind Products
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profiler

A program that helps you figure out where a program is spending most of its time. It may also help you discover how it is using memory, how many of what sorts of object. There is a simple profiler built into the Java runtime:

java -Xprof MyClass > prof.txt

Profilers

Borland OptimizeIt $500.00 USD for the standard edition
GCviewer: free memory analyser from Tagtraum.
JInsight
JMP: (Java Memory Profiler) free memory profiler from Khelekore.
jProf
HpJMeter (free)
JProbe
JProfiler, also version integrated with Jetrains IntelliJ Idea.
Mercury Tuning née Performant
Numega
Performant Optibench
SAP: free, soon to be open source.
Semantic Designs JavaProfiler $400.00 USD
SoftwareVerify Performance Verifier (Coverage Validator, Performance Validator, Thread Validator, Java Bug Validator, Memory Validator) One tool, to measure memory use, is free.
YourKit Profiler €295.00 EUR
Rational Purify: for C++/JNI.

Learning More

Sun’s Developer Technical Articles on JConsole Remote Profiler

Sun’s Performance documentation on JVMStat

JConsole
JStack
optimiser
optimising
performance tuning
time
time sources

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