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<p class=MsoNormal align=center style='text-align:center'><b><span
style='font-size:18.0pt'>IBM® HeapAnalyzer</span></b></p>
<p class=MsoNormal align=center style='text-align:center'><span
style='font-size:18.0pt'> </span></p>
<p class=MsoNormal align=center style='text-align:center'><span
style='font-size:18.0pt'> </span></p>
<p class=MsoNormal align=center style='text-align:center'><span
style='font-size:18.0pt'>IBM HeapAnalyzer Creator/Architect/Developer</span></p>
<p class=MsoNormal align=center style='text-align:center'><span
style='font-size:18.0pt'>Jinwoo Hwang</span></p>
<p align=center style='margin:0in;margin-bottom:.0001pt;text-align:center'>[email protected]</p>
<p style='margin:0in;margin-bottom:.0001pt'> </p>
<p style='margin:0in;margin-bottom:.0001pt'>Welcome to IBM HeapAnalyzer. IBM
HeapAnalyzer allows the finding of a possible Java™ heap leak area
through its heuristic search engine and analysis of the Java heap dump in Java
applications. You can find more information at
http://www.alphaworks.ibm.com/tech/heapanalyzer</p>
<p style='margin:0in;margin-bottom:.0001pt'> </p>
<p style='margin:0in;margin-bottom:.0001pt'><b><span style='font-size:20.0pt'>Introduction</span></b></p>
<p>The Heapdump contains a list of all the objects that are in the heap.</p>
<p>Heapdumps can be very large with millions of items in them. </p>
<p>It's not always easy to analyze a large file. This tool analyzes heapdumps
of Java SDK 1.3.1,1.4.x, 5.0 and 6.0</p>
<p>IBM HeapAnalyzer is provided “as-is”.</p>
<p>Supported features of IBM HeapAnalyzer are ported to MDD4J which is
available in IBM Support Assistant (<a
href="http://www-306.ibm.com/software/support/isa/">http://www-306.ibm.com/software/support/isa/</a>).
MDD4J is an incorporation of IBM HeapAnalyzer and other IBM Java heap analysis
tools.</p>
<p style='margin:0in;margin-bottom:.0001pt'><b><span style='font-size:20.0pt'>Prerequisite</span></b></p>
<p style='margin-left:.5in;text-indent:-.25in'><span style='font-family:Symbol'>·</span><span
style='font-size:7.0pt'> </span>Java Runtime
Environment 5 or higher<br>
<br>
The following exception will be thrown if older version of Java virtual machine
is used:<br>
Exception in thread "main" java.lang.NoClassDefFoundError:
java/util/regex/PatternSyntaxException</p>
<p> </p>
<p><b><span style='font-size:20.0pt'>Definitions</span></b></p>
<p style='margin-top:5.0pt;margin-right:0in;margin-bottom:12.0pt;margin-left:
.5in;text-indent:-.25in'><span style='font-family:Symbol'>·</span><span
style='font-size:7.0pt'> </span><b>Root
object</b> An object for which no (different) object holds a reference.</p>
<p style='margin-top:5.0pt;margin-right:0in;margin-bottom:12.0pt;margin-left:
.5in;text-indent:-.25in'><span style='font-family:Symbol'>·</span><span
style='font-size:7.0pt'> </span><b>Parent
object</b> An object (for example, A) that holds at least one reference to some<br>
(different) object (for example, B). In this case, A is said to be the parent
of B.</p>
<p style='margin-top:5.0pt;margin-right:0in;margin-bottom:12.0pt;margin-left:
.5in;text-indent:-.25in'><span style='font-family:Symbol'>·</span><span
style='font-size:7.0pt'> </span><b>Owner
object</b> If an object has more than one parent object, a parent object is
chosen as owner object. <br>
Total size is calculated only with owner objects.</p>
<p style='margin-top:5.0pt;margin-right:0in;margin-bottom:12.0pt;margin-left:
.5in;text-indent:-.25in'><span style='font-family:Symbol'>·</span><span
style='font-size:7.0pt'> </span><b>Child
object</b> An object (for example, B) for which at least one (different) object<br>
(for example, A) holds a reference. In this case B is said to be the child of
A. </p>
<p style='margin-top:5.0pt;margin-right:0in;margin-bottom:12.0pt;margin-left:
.5in;text-indent:-.25in'><span style='font-family:Symbol'>·</span><span
style='font-size:7.0pt'> </span><b>Type </b>Collection
of same objects</p>
<p style='margin-top:5.0pt;margin-right:0in;margin-bottom:12.0pt;margin-left:
.5in;text-indent:-.25in'><span style='font-family:Symbol'>·</span><span
style='font-size:7.0pt'> </span><b>Size</b>
The size of an object is the amount of memory that is required to hold that
object in memory.</p>
<p style='margin-left:.5in;text-indent:-.25in'><span style='font-family:Symbol'>·</span><span
style='font-size:7.0pt'> </span><b>Total
size </b>The subtree size of an object is the sum of i
ha39.zip （68个子文件） 
readme.html 50KB
ha39.jar 4.69MB
readme_files 
image048.jpg 91KB image061.jpg 92KB image026.jpg 158KB image003.jpg 15KB image013.jpg 133KB image010.jpg 131KB image039.jpg 143KB image018.jpg 107KB image036.jpg 144KB image057.jpg 10KB image055.jpg 130KB image044.jpg 120KB image053.jpg 132KB image060.jpg 92KB image046.jpg 90KB image031.jpg 145KB
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是嘟嘟啊2012-06-27想用自己的机器分析太难了，换了太小型机才分析成功的。工具可用。
wangshengmao1232012-02-14倒是能使用，就是太耗内存了- phoenix_nova2014-03-02工具没问题，只是比较耗资源。anyway，感谢楼主提供。
- lyjfriends22018-09-08还可以，使用比较方便。
峰平浪静
- 粉丝: 1
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