[java] how to visualize hprof file
19 July 2007JDK 6.0 has jhat, which is web visualization tool for hprof.
jhat is placed in “java/jdk1.6.0_XX/bin/”.
To use jhat, you have to output binary hprof file by “format=b” option of hprof.
% java -Xrunhprof:format=b ex.test.MainClass
Output file is “java.hprof”.
When you run
% jhat java.hprof
you can view hprof file from http://localhost:7000/.
This html file is more understandable than text hprof file.
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