blob: 2c48700f3d21ee15cf6b1d808ea511ccec8857eb (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
|
The following are examples of j_events.d.
This counts events from all Java processes on the system with hotspot
provider support (1.6.0). Some events such as method calls are only visible
when using the flag "+ExtendedDTraceProbes". eg,
java -XX:+ExtendedDTraceProbes classfile
Here you can see it running while the program Code/Java/Func_abc
# j_events.d
Tracing... Hit Ctrl-C to end.
^C
PID EVENT COUNT
311379 AttachCurrentThread-entry 1
311379 AttachCurrentThread-return 1
311379 CallIntMethod-entry 1
311379 CallIntMethod-return 1
311379 CallStaticBooleanMethod-entry 1
311379 CallStaticBooleanMethod-return 1
311379 CallStaticObjectMethod-entry 1
311379 CallStaticObjectMethod-return 1
311379 CallStaticObjectMethodV-entry 1
311379 CallStaticObjectMethodV-return 1
311379 CallStaticVoidMethod-entry 1
311379 CallStaticVoidMethod-return 1
311379 CreateJavaVM-entry 1
311379 CreateJavaVM-return 1
311379 DestroyJavaVM-entry 1
311379 DestroyJavaVM-return 1
311379 DetachCurrentThread-entry 1
311379 DetachCurrentThread-return 1
311379 ExceptionCheck-entry 1
311379 ExceptionCheck-return 1
311379 ExceptionClear-entry 1
311379 ExceptionClear-return 1
311379 GetDefaultJavaVMInitArgs-entry 1
311379 GetDefaultJavaVMInitArgs-return 1
311379 GetJavaVM-entry 1
311379 GetJavaVM-return 1
311379 GetStringRegion-entry 1
311379 GetStringRegion-return 1
311379 NewByteArray-entry 1
311379 NewByteArray-return 1
311379 NewObject-entry 1
311379 NewObject-return 1
311379 NewObjectV-entry 1
311379 NewObjectV-return 1
311379 SetBooleanField-entry 1
311379 SetBooleanField-return 1
311379 ToReflectedMethod-entry 1
311379 ToReflectedMethod-return 1
311379 vm-init-begin 1
311379 vm-init-end 1
311379 vm-shutdown 1
311379 NewGlobalRef-entry 2
311379 NewGlobalRef-return 2
311379 monitor-wait 2
311379 GetStaticFieldID-entry 3
311379 GetStaticFieldID-return 3
311379 NewObjectArray-entry 3
311379 NewObjectArray-return 3
311379 SetStaticObjectField-entry 3
311379 SetStaticObjectField-return 3
311379 GetStaticMethodID-entry 4
311379 GetStaticMethodID-return 4
311379 EnsureLocalCapacity-entry 5
311379 EnsureLocalCapacity-return 5
311379 SetByteArrayRegion-entry 5
311379 SetByteArrayRegion-return 5
311379 SetLongField-entry 5
311379 SetLongField-return 5
311379 GetMethodID-entry 6
311379 GetMethodID-return 6
311379 GetObjectArrayElement-entry 6
311379 GetObjectArrayElement-return 6
311379 GetSuperclass-entry 6
311379 GetSuperclass-return 6
311379 thread-start 6
311379 SetIntField-entry 8
311379 SetIntField-return 8
311379 GetArrayLength-entry 9
311379 GetArrayLength-return 9
311379 GetByteArrayRegion-entry 9
311379 GetByteArrayRegion-return 9
311379 RegisterNatives-entry 9
311379 RegisterNatives-return 9
311379 GetObjectClass-entry 10
311379 GetObjectClass-return 10
311379 FindClass-entry 11
311379 FindClass-return 11
311379 SetObjectArrayElement-entry 12
311379 SetObjectArrayElement-return 12
311379 GetStringUTFLength-entry 18
311379 GetStringUTFLength-return 18
311379 GetStringUTFRegion-entry 18
311379 GetStringUTFRegion-return 18
311379 GetFieldID-entry 21
311379 GetFieldID-return 21
309790 CallStaticVoidMethod-entry 24
309790 CallStaticVoidMethod-return 24
194441 CallStaticVoidMethod-entry 26
194441 CallStaticVoidMethod-return 26
311379 GetStringUTFChars-entry 29
311379 GetStringUTFChars-return 29
311379 ReleaseStringUTFChars-entry 29
311379 ReleaseStringUTFChars-return 29
311379 CallObjectMethod-entry 30
311379 CallObjectMethod-return 30
311379 GetStringCritical-entry 35
311379 GetStringCritical-return 35
311379 ReleaseStringCritical-entry 35
311379 ReleaseStringCritical-return 35
311379 ExceptionOccurred-entry 46
311379 ExceptionOccurred-return 46
311379 GetStringLength-entry 54
311379 GetStringLength-return 54
311379 NewStringUTF-entry 54
311379 NewStringUTF-return 54
311379 NewString-entry 55
311379 NewString-return 55
311379 GetObjectField-entry 60
311379 GetObjectField-return 60
311379 DeleteLocalRef-entry 108
311379 DeleteLocalRef-return 108
311379 class-loaded 327
311379 object-alloc 5389
311379 method-return 12024
311379 method-entry 12031
You can see that nearly all of the events recorded are from PID 311379, which
we can assume in this case is the program in question. Not all of the lines
correspond to this, however, which is something to be aware of while analysing
the results.
|
