java profile

$ java -version

java version "1.6.0_31"
Java(TM) SE Runtime Environment (build 1.6.0_31-b04)
Java HotSpot(TM) 64-Bit Server VM (build 20.6-b01, mixed mode)

http://kenshin579.tistory.com/entry/Java-Profiling-with-hprof-default-java-profiler

$ java -Xrunhprof -cp .:./ahocorasick_java-1.1/dist/org.arabidopsis.ahocorasick-1.1.jar TestAC

1
cut
14
1
ee
16
1
apple
26
1
ee
31
Dumping Java heap ... allocation sites ... done.

$ tail java.hprof.txt

  604  0.01% 98.85%        64    2        64     2 300169 java.util.HashMap$Entry
  605  0.01% 98.86%        64    2        64     2 300177 java.util.HashMap$Entry
  606  0.01% 98.88%        64    2        64     2 300179 java.util.Hashtable$Entry
  607  0.01% 98.89%        64    2        64     2 300298 java.lang.String
  608  0.01% 98.90%        64    2        64     2 300300 java.lang.String
  609  0.01% 98.91%        64    2        64     2 300302 java.io.DataInputStream
  610  0.01% 98.92%        64    1        64     1 300358 java.util.Hashtable$Entry[]
  611  0.01% 98.93%        64    1        64     1 300360 java.util.Hashtable$Entry[]
  612  0.01% 98.94%        64    1        64     1 300362 java.util.Hashtable$Entry[]
SITES END

http://docs.oracle.com/javase/7/docs/technotes/samples/hprof.html

$ javac -J-agentlib:hprof=heap=sites -cp ./ahocorasick_java-1.1/dist/org.arabidopsis.ahocorasick-1.1.jar T
estAC.java

Dumping allocation sites ... done.

$ tail java.hprof.txt

  209  0.01% 88.24%       656    2       656     2 301703 com.sun.tools.javac.parser.Scanner$CommentStyle[]
  210  0.01% 88.25%       656    2       656     2 302383 com.sun.tools.javac.code.BoundKind[]
  211  0.01% 88.26%       656    2       656     2 302696 com.sun.tools.javac.jvm.ClassWriter$RetentionPolicy[]
  212  0.01% 88.27%       640    2       640     2 300334 java.security.Principal[]
  213  0.01% 88.28%       640    2       640     2 300420 java.lang.Enum[]
  214  0.01% 88.29%       640    2       640     2 300820 com.sun.tools.javac.code.Scope$Entry[]
  215  0.01% 88.30%       640   20       640    20 301669 com.sun.tools.javac.util.Name
  216  0.01% 88.31%       640    8       640     8 301729 com.sun.tools.javac.code.Scope$Entry[]
  217  0.01% 88.32%       640    2       640     2 302529 com.sun.tools.javac.code.Symbol[]
SITES END

cf.

http://perfinsp.sourceforge.net/jprof.html

http://docs.jboss.org/jbossprofiler/doc/concept.html#Interceptors

http://www.centos.org/docs/5/html/Deployment_Guide-en-US/s1-oprofile-configuring.html