The following are examples of j_calltime.d.
 
 This script traces the elapsed time of Java methods and prints a report of the
 top ten in each category.   This number is configurable with simple edit of
 the DTrace script
 
 Here it traces the example program, Code/Java/Func_abc
 
 # j_calltime.d
 Tracing... Hit Ctrl-C to end.
 ^C
 
 Top 10 counts,
       PID TYPE       NAME                                                COUNT
    311358 method     java/lang/String.equals                               202
    311358 method     java/lang/Math.min                                    208
    311358 method     java/lang/String.hashCode                             213
    311358 method     java/lang/String.indexOf                              302
    311358 method     java/lang/System.arraycopy                            360
    311358 method     java/lang/StringBuilder.append                        533
    311358 method     java/lang/AbstractStringBuilder.append                549
    311358 method     java/lang/Object.<init>                               823
    311358 method     java/lang/String.charAt                              1960
         0 total      -                                                   12020
 
 Top 10 elapsed times (us),
       PID TYPE       NAME                                                TOTAL
 
 Top 10 exclusive method elapsed times (us),
       PID TYPE       NAME                                                TOTAL
    311358 method     java/nio/ByteBuffer.<init>                           5430
    311358 method     java/lang/String.charAt                              6079
    311358 method     java/lang/String.<init>                              7306
    311358 method     java/lang/StringBuilder.append                      10240
    311358 method     java/util/StringTokenizer.scanToken                 11075
    311358 method     java/net/URL.<clinit>                               12519
    311358 method     java/io/UnixFileSystem.normalize                    13218
    311358 method     sun/net/www/ParseUtil.decode                        14208
    311358 method     java/lang/Thread.sleep                            3016374
         0 total      -                                                 3344993
 
 Top 10 inclusive method elapsed times (us),
       PID TYPE       NAME                                                TOTAL
    311358 method     sun/misc/Launcher.<clinit>                         129120
    311358 method     java/lang/ClassLoader.initSystemClassLoader        129851
    311358 method     java/lang/ClassLoader.getSystemClassLoader         129897
    311358 method     java/lang/ClassLoader.loadClass                    267404
    311358 method     java/security/AccessController.doPrivileged        278364
    311358 method     Func_abc.func_c                                   1009971
    311358 method     Func_abc.func_b                                   2019995
    311358 method     java/lang/Thread.sleep                            3016374
    311358 method     Func_abc.func_a                                   3027043
    311358 method     Func_abc.main                                     3027068
 
 Counts shows us how many times each different method was called, and how
 many methods were called in total.
 
 The exclusive method elapsed times show the time that each method spent
 processing code - while not in other method.
 
 The inclusive method elapsed times show the time that each method spent
 processing code, including the time spent in other calls.
 
 These elapsed times are the absolute time from when the method began to
 when it completed - which includes off-CPU time due to other system events
 such as I/O, scheduling, interrupts, etc.