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Diffstat (limited to 'Examples/j_calls_example.txt')
| -rw-r--r-- | Examples/j_calls_example.txt | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/Examples/j_calls_example.txt b/Examples/j_calls_example.txt new file mode 100644 index 000000000000..3aacb2c9025c --- /dev/null +++ b/Examples/j_calls_example.txt @@ -0,0 +1,137 @@ +The following are examples of running the j_calls.d script. + +This traces activity from all Java processes on the system with hotspot +provider support (1.6.0). Method calls and object allocation are only visible +when using the flag "+ExtendedDTraceProbes". eg, +java -XX:+ExtendedDTraceProbes classfile + +Here we see it running on Code/Java/Func_abc + +# j_calls.d +Tracing... Hit Ctrl-C to end. +^C + + PID TYPE NAME COUNT + 311334 cload Func_abc 1 + 311334 cload java/io/BufferedInputStream 1 + 311334 cload java/io/BufferedOutputStream 1 + 311334 cload java/io/BufferedReader 1 + 311334 cload java/io/BufferedWriter 1 + 311334 cload java/io/Closeable 1 + 311334 cload java/io/Console 1 + 311334 cload java/io/Console$1 1 + 311334 cload java/io/Console$1$1 1 + 311334 cload java/io/DataInput 1 + 311334 cload java/io/DataInputStream 1 + 311334 cload java/io/DeleteOnExitHook 1 + 311334 cload java/io/ExpiringCache 1 + 311334 cload java/io/ExpiringCache$1 1 + 311334 cload java/io/ExpiringCache$Entry 1 + 311334 cload java/io/File 1 + 311334 cload java/io/File$1 1 + 311334 cload java/io/FileDescriptor 1 + 311334 cload java/io/FileInputStream 1 + 311334 cload java/io/FileOutputStream 1 + 311334 cload java/io/FilePermission 1 + 311334 cload java/io/FilePermission$1 1 + 311334 cload java/io/FilePermissionCollection 1 + 311334 cload java/io/FileReader 1 + 311334 cload java/io/FileSystem 1 + 311334 cload java/io/FilterInputStream 1 + 311334 cload java/io/FilterOutputStream 1 + 311334 cload java/io/Flushable 1 + 311334 cload java/io/InputStream 1 + 311334 cload java/io/InputStreamReader 1 + 311334 cload java/io/ObjectStreamClass 1 + 311334 cload java/io/ObjectStreamField 1 + 311334 cload java/io/OutputStream 1 + 311334 cload java/io/OutputStreamWriter 1 + 311334 cload java/io/PrintStream 1 + 311334 cload java/io/Reader 1 + 311334 cload java/io/Serializable 1 + 311334 cload java/io/UnixFileSystem 1 + 311334 cload java/io/Writer 1 + 311334 cload java/lang/AbstractStringBuilder 1 + 311334 cload java/lang/Appendable 1 + 311334 cload java/lang/ApplicationShutdownHooks 1 + 311334 cload java/lang/ArithmeticException 1 + 311334 cload java/lang/ArrayStoreException 1 + 311334 cload java/lang/Boolean 1 + 311334 cload java/lang/Byte 1 + 311334 cload java/lang/CharSequence 1 + 311334 cload java/lang/Character 1 + 311334 cload java/lang/CharacterDataLatin1 1 + 311334 cload java/lang/Class 1 +[... 1400 lines truncated ...] + 311334 method java/lang/Class.getClassLoader0 34 + 311334 method java/lang/String.toLowerCase 34 + 311334 method sun/security/action/GetPropertyAction.run 34 + 311334 method java/nio/CharBuffer.arrayOffset 36 + 311334 method java/util/HashMap.getEntry 36 + 311334 method java/io/File.<init> 37 + 311334 method java/io/UnixFileSystem.prefixLength 37 + 311334 oalloc java/io/File 37 + 311334 oalloc java/lang/reflect/Field 37 + 311334 method java/io/BufferedReader.readLine 38 + 311334 method java/util/concurrent/locks/AbstractOwnableSynchronizer.setExclusiveOwnerThread 38 + 311334 method java/lang/CharacterDataLatin1.toLowerCase 41 + 311334 method java/lang/CharacterDataLatin1.getProperties 43 + 311334 method java/security/AccessController.doPrivileged 43 + 311334 method java/util/Vector.size 43 + 311334 method java/nio/Buffer.position 44 + 311334 method java/nio/ByteBuffer.arrayOffset 44 + 311334 method java/lang/System.getProperty 48 + 311334 method java/util/Properties.getProperty 50 + 311334 method java/util/BitSet.expandTo 51 + 311334 method java/util/BitSet.set 51 + 311334 method java/lang/System.checkKey 56 + 311334 method java/lang/Thread.currentThread 57 + 311334 method java/util/Hashtable$Entry.<init> 57 + 311334 oalloc [Ljava/lang/String; 57 + 311334 oalloc java/util/Hashtable$Entry 57 + 311334 method java/util/Hashtable.get 59 + 311334 method java/util/Hashtable.put 63 + 311334 method java/util/BitSet.checkInvariants 71 + 311334 method java/util/BitSet.wordIndex 72 + 311334 method java/lang/StringBuilder.<init> 73 + 311334 method java/lang/StringBuilder.toString 73 + 311334 oalloc java/lang/StringBuilder 73 + 311334 method java/lang/AbstractStringBuilder.expandCapacity 81 + 311334 method java/util/HashMap.hash 81 + 311334 method java/util/HashMap.indexFor 81 + 311334 method java/lang/AbstractStringBuilder.<init> 82 + 311334 method java/lang/Character.toLowerCase 82 + 311334 method java/lang/String.startsWith 83 + 311334 method java/util/Arrays.copyOf 87 + 311334 method java/lang/String.lastIndexOf 90 + 311334 method java/lang/String.substring 94 + 311334 method java/util/Arrays.copyOfRange 107 + 311334 method java/lang/String.getChars 156 + 311334 method java/lang/System.getSecurityManager 174 + 311334 method java/lang/String.<init> 175 + 311334 method java/lang/String.equals 202 + 311334 method java/lang/Math.min 208 + 311334 method java/lang/String.hashCode 213 + 311334 method java/lang/String.indexOf 302 + 311334 oalloc [Ljava/lang/Object; 326 + 311334 method java/lang/System.arraycopy 360 + 311334 oalloc [I 374 + 311334 oalloc java/lang/Class 395 + 311334 oalloc [B 406 + 311334 oalloc [S 486 + 311334 method java/lang/StringBuilder.append 533 + 311334 oalloc [[I 541 + 311334 method java/lang/AbstractStringBuilder.append 549 + 311334 method java/lang/Object.<init> 823 + 311334 oalloc java/lang/String 931 + 311334 oalloc [C 1076 + 311334 method java/lang/String.charAt 1960 + +This shows us each of the events associated with the PID 311334, and the +number of times each event happened. These events can be of type cload (class +load), method (method call), mcompile (method compile), mload (compiled method +load), oalloc (object alloc) or thread (thread start). + +In this case you can see 1960 calls to java/lang/String.charAt, and 1076 +object allocations of type [C. + |