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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html>
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<head>
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<meta content="deepa viswanathan" name="Author">
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<meta content="Mozilla/4.04 [en] (WinNT; U) [Netscape]"
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name="GENERATOR">
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<title>HPROF Agent</title>
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<meta name="author" content="Kelly O'Hair">
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</head>
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<body alink="#ff0000" bgcolor="#ffffff" link="#0000ee" text="#000000"
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vlink="#551a8b">
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<h1 style="text-align: center;"><a name="mozTocId137594"
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class="mozTocH1"></a><span style="font-weight: bold;"></span>HPROF
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Agent<br>
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</h1>
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<h2><a name="mozTocId558923" class="mozTocH2"></a>Contents</h2>
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<span style="text-decoration: underline;"></span>
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<ol id="mozToc">
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<!--mozToc h1 1 h2 2 h3 3 h4 4 h5 5 h6 6--><li><a href="#mozTocId137594">HPROF
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Agent</a>
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<ol>
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<li><a href="#mozTocId558923">Contents</a></li>
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<li><a href="#mozTocId550204">Overview</a></li>
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<li><a href="#mozTocId634758">Start-up</a></li>
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<li><a href="#mozTocId708821">Heap Allocation
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Profiles (heap=sites) </a></li>
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<li><a href="#mozTocId634725">Heap Dump (heap=dump)</a></li>
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<li><a href="#mozTocId546448">CPU Usage Sampling
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Profiles (cpu=samples) </a></li>
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<li><a href="#mozTocId116568">CPU Usage Times Profile (cpu=times)
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</a></li>
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<li><a href="#mozTocId848088">Binary Dump Format
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(format=b)</a>
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<ol>
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<li><a href="#mozTocId348369">Socket Connection and
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Communication</a></li>
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</ol>
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<ol>
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<li><a href="#mozTocId348360">Handling of Arrays</a></li>
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</ol>
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</li>
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<li><a href="#mozTocId589424">Source Code </a></li>
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</ol>
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</li>
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</ol>
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<span style="text-decoration: underline;"></span>
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<h2><a name="mozTocId550204" class="mozTocH2"></a>Overview</h2>
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<p>This document describes the JVM TI Agent HPROF delivered in
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the Java Development Kit (JDK). It is intended as demonstration code
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for JVM TI, and as a functional
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replacement for the older HPROF JVMPI Agent delivered in past releases.<br>
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</p>
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Previous 1.4 and earlier releases of the JDK contained an HPROF
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agent built on the experimental JVMPI.
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The newer JVM TI replaces both JVMDI and JVMPI.
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<p><span style="font-weight: bold;">Note</span>: Differences between
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this HPROF implementation and the older JVMPI based HPROF are marked in
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<span style="font-style: italic; color: rgb(255, 0, 0);">RED ITALICS</span>
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throughout this document.<br>
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</p>
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<br>
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<h2><a name="mozTocId634758" class="mozTocH3"></a>Start-up</h2>
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<p>HPROF is a simple profiler agent shipped with the JDK. It is
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a dynamically-linked
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library that interacts with the JVM TI and
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writes out profiling
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information either to a file or to a socket in ascii or binary format.
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This information can
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be further processed by a profiler front-end tool.</p>
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<p>It is capable of presenting CPU usage, heap allocation statistics
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and monitor contention
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profiles. In addition it can also report complete heap dumps and states
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of all the monitors and threads in the Java virtual machine.
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</p>
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<p>HPROF can be invoked by:
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</p>
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<pre>java -<span style="font-weight: bold;">agentlib:</span><b>hprof</b> ToBeProfiledClass</pre>
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Depending on the type of profiling requested, HPROF instructs the
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virtual machine to send it the relevant JVM TI events and processes
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the event data into profiling information. For example, the following
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command obtains the heap allocation profile:
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<pre>java -agentlib:hprof=heap=sites ToBeProfiledClass</pre>
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Following is the complete list of options that can passed to hprof :
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<blockquote>
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<pre>java -agentlib:hprof=help<br><br> HPROF: Heap and CPU Profiling Agent (JVMTI Demonstration Code)<br><br>hprof usage: java -agentlib:hprof=[help]|[<option>=<value>, ...]<br><br>Option Name and Value Description Default<br>--------------------- ----------- -------<br>heap=dump|sites|all heap profiling all<br>cpu=samples|times|old CPU usage off<br>monitor=y|n monitor contention n<br>format=a|b text(txt) or binary output a<br>file=<file> write data to file java.hprof[{.txt}]<br>net=<host>:<port> send data over a socket off<br>depth=<size> stack trace depth 4<br>interval=<ms> sample interval in ms 10<br>cutoff=<value> output cutoff point 0.0001<br>lineno=y|n line number in traces? y<br>thread=y|n thread in traces? n<br>doe=y|n dump on exit? y<br>msa=y|n Solaris micro state accounting n<br>force=y|n force output to <file> y<br>verbose=y|n print messages about dumps y<br><br>Obsolete Options<br>----------------<br>gc_okay=y|n<br><br>Examples<br>--------<br> - Get sample cpu information every 20 millisec, with a stack depth of 3:<br> java -agentlib:hprof=cpu=samples,interval=20,depth=3 classname<br> - Get heap usage information based on the allocation sites:<br> java -agentlib:hprof=heap=sites classname<br><br>Notes<br>-----<br> - The option format=b cannot be used with monitor=y.<br> - The option format=b cannot be used with cpu=old|times.<br> - Use of the -Xrunhprof interface can still be used, e.g.<br> java -Xrunhprof:[help]|[<option>=<value>, ...]<br> will behave exactly the same as:<br> java -agentlib:hprof=[help]|[<option>=<value>, ...]<br><br>Warnings<br>--------<br> - This is demonstration code for the JVMTI interface and use of BCI,<br> it is not an official product or formal part of the JDK.<br> - The -Xrunhprof interface will be removed in a future release.<br> - The option format=b is considered experimental, this format may change<br> in a future release.<br></pre>
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</blockquote>
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<p>By default, heap profiling information (sites and dump) is written
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out
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to java.hprof.txt (ascii).
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The monitor=y|n option has proven to be problematic and may be replaced
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with something more useful.<br>
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</p>
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<p>The output in most cases will contain ID's for traces, threads,
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objects, etc. Each type of ID will typically start with a
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different number than the other ID's, e.g. traces might start with
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300000.<br>
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</p>
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<p><span style="font-weight: bold;">Note</span>: <span
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style="font-style: italic; color: rgb(255, 0, 0);">The gc_okay option
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is no longer supported.</span><br>
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</p>
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<h2><a name="mozTocId708821" class="mozTocH4"></a>Heap Allocation
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Profiles (heap=sites)<br>
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</h2>
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Following is the heap allocation profile generated by running the Java
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compiler
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(<code>javac</code>) on a set of input files. Only parts of the
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profiler output are shown here.
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<p></p>
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<pre>Command used: javac -J-agentlib:hprof=heap=sites Hello.java<br><br>SITES BEGIN (ordered by live bytes) Fri Feb 6 13:13:42 2004<br> percent live alloc'ed stack class<br> rank self accum bytes objs bytes objs trace name<br> 1 44.13% 44.13% 1117360 13967 1117360 13967 301926 java.util.zip.ZipEntry<br> 2 8.83% 52.95% 223472 13967 223472 13967 301927 com.sun.tools.javac.util.List<br> 3 5.18% 58.13% 131088 1 131088 1 300996 byte[]<br> 4 5.18% 63.31% 131088 1 131088 1 300995 com.sun.tools.javac.util.Name[]<br> <br></pre>
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A crucial piece of information in heap profile is the amount of
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allocation that occurs
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in various parts of the program. The <code>SITES</code> record above
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tells us that 44.13% of the total space was allocated for
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java.util.zip.ZipEntry objects. Note that the amount of live data is
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only a fraction
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of the total allocation that has occurred at a given site; the rest has
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been garbage collected.
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<p>A good way to relate allocation sites to the source code is to
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record
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the dynamic stack traces that led to the heap allocation. Following is
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another part of the profiler output that illustrates the stack traces
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referred to by the four allocation sites in output shown above.
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<span style="font-family: monospace;"><br>
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</span></p>
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<pre><span style="font-family: monospace;"></span>TRACE 301926:<br> java.util.zip.ZipEntry.<init>(ZipEntry.java:101)<br> java.util.zip.ZipFile+3.nextElement(ZipFile.java:417)<br> com.sun.tools.javac.jvm.ClassReader.openArchive(ClassReader.java:1374)<br> com.sun.tools.javac.jvm.ClassReader.list(ClassReader.java:1631)<br><br>TRACE 301927:<br> com.sun.tools.javac.util.List.<init>(List.java:42)<br> com.sun.tools.javac.util.List.<init>(List.java:50)<br> com.sun.tools.javac.util.ListBuffer.append(ListBuffer.java:94)<br> com.sun.tools.javac.jvm.ClassReader.openArchive(ClassReader.java:1374)<br><br>TRACE 300996:<br> com.sun.tools.javac.util.Name$Table.<init>(Name.java:379)<br> com.sun.tools.javac.util.Name$Table.<init>(Name.java:481)<br> com.sun.tools.javac.util.Name$Table.make(Name.java:332)<br> com.sun.tools.javac.util.Name$Table.instance(Name.java:349)<br><br>TRACE 300995:<br> com.sun.tools.javac.util.Name$Table.<init>(Name.java:378)<br> com.sun.tools.javac.util.Name$Table.<init>(Name.java:481)<br> com.sun.tools.javac.util.Name$Table.make(Name.java:332)<br> com.sun.tools.javac.util.Name$Table.instance(Name.java:349)<init><init><init><br></init></init></init></pre>
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<blockquote></blockquote>
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<p>
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Each frame in the stack trace contains class name, method name, source
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file name, and the line number. The user can set the maximum number
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of frames collected by the HPROF agent. The default limit is 4. Stack
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traces reveal not only which methods performed heap allocation, but
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also which methods were ultimately responsible for making calls that
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resulted in memory allocation. <br>
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</p>
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<h2><a name="mozTocId634725" class="mozTocH2"></a>Heap Dump (heap=dump)</h2>
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A complete dump of the current live objects in the heap can be obtained
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with:<br>
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<pre>Command used: javac -J-agentlib:hprof=heap=dump Hello.java<br></pre>
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This is a very large output file, but can be viewed and searched in any
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editor.<br>
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<br>
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<h2><a name="mozTocId546448" class="mozTocH4"></a>CPU Usage Sampling
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Profiles (cpu=samples)<br>
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</h2>
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HPROF can collect CPU usage information by sampling threads. Following
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is part of the output collected from a run
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of the <code>javac</code> compiler.
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<p></p>
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<pre>Command used: javac -J-agentlib:hprof=cpu=samples Hello.java<br><br>CPU SAMPLES BEGIN (total = 462) Fri Feb 6 13:33:07 2004<br>rank self accum count trace method<br> 1 49.57% 49.57% 229 300187 java.util.zip.ZipFile.getNextEntry<br> 2 6.93% 56.49% 32 300190 java.util.zip.ZipEntry.initFields<br> 3 4.76% 61.26% 22 300122 java.lang.ClassLoader.defineClass2<br> 4 2.81% 64.07% 13 300188 java.util.zip.ZipFile.freeEntry<br> 5 1.95% 66.02% 9 300129 java.util.Vector.addElement<br> 6 1.73% 67.75% 8 300124 java.util.zip.ZipFile.getEntry<br> 7 1.52% 69.26% 7 300125 java.lang.ClassLoader.findBootstrapClass<br> 8 0.87% 70.13% 4 300172 com.sun.tools.javac.main.JavaCompiler.<init><br> 9 0.65% 70.78% 3 300030 java.util.zip.ZipFile.open<br> 10 0.65% 71.43% 3 300175 com.sun.tools.javac.main.JavaCompiler.<init><br><init>
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...
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CPU SAMPLES END
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</init></pre>
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<blockquote>
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</blockquote>
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<p>
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The HPROF agent periodically samples the stack of all running threads
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to record the most frequently active stack traces. The <code>count</code>
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field above indicates how many times a particular stack trace was found
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to be active. These stack traces correspond to the CPU usage hot spots
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in the application.<br>
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</p>
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<h2><a name="mozTocId116568" class="mozTocH2"></a>CPU Usage Times
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Profile (cpu=times)<br>
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</h2>
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HPROF can collect CPU usage information by injecting code into every
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method entry and exit, keeping track of exact method call counts and
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the time spent in each method. This uses Byte Code Injection (BCI) and
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runs considerably slower than cpu=samples. Following is part of the
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output collected from a run
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of the <code>javac</code> compiler.
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<p></p>
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<pre>Command used: javac -J-agentlib:hprof=cpu=times Hello.java<br><br>CPU TIME (ms) BEGIN (total = 2082665289) Fri Feb 6 13:43:42 2004<br>rank self accum count trace method<br> 1 3.70% 3.70% 1 311243 com.sun.tools.javac.Main.compile<br> 2 3.64% 7.34% 1 311242 com.sun.tools.javac.main.Main.compile<br> 3 3.64% 10.97% 1 311241 com.sun.tools.javac.main.Main.compile<br> 4 3.11% 14.08% 1 311173 com.sun.tools.javac.main.JavaCompiler.compile<br> 5 2.54% 16.62% 8 306183 com.sun.tools.javac.jvm.ClassReader.listAll<br> 6 2.53% 19.15% 36 306182 com.sun.tools.javac.jvm.ClassReader.list<br> 7 2.03% 21.18% 1 307195 com.sun.tools.javac.comp.Enter.main<br> 8 2.03% 23.21% 1 307194 com.sun.tools.javac.comp.Enter.complete<br> 9 1.68% 24.90% 1 306392 com.sun.tools.javac.comp.Enter.classEnter<br> 10 1.68% 26.58% 1 306388 com.sun.tools.javac.comp.Enter.classEnter<br><br>...<br>CPU TIME (ms) END</pre>
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Here the count represents the true count of the times this method was
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entered, and the percentages represent a measure of thread CPU time
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spent in those methods.<br>
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<br>
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<h2><a class="mozTocH3" name="mozTocId848088"></a>Binary Dump Format
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(format=b)</h2>
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The basic fields in the binary output are u1 (1 byte), u2 (2 byte), u4
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(4 byte), and u8 (8 byte). An ID in this implementation is a u4,
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however the size of an ID is really determined by the "size of
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identifiers" field in the header.<br>
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<br>
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<span style="font-weight: bold;">WARNING</span>: This format is still
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considered highly experimental, however, all attempts were made to
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match the format of past HPROF implementations.<br>
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<br>
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The binary output begins with the information:<br>
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<br>
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<table style="text-align: left; width: 100%; height: 124px;" border="1"
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cellpadding="2" cellspacing="2">
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<tbody>
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<tr>
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<td style="vertical-align: top;">[u1]*<br>
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</td>
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<td style="vertical-align: top;">An initial NULL terminated
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series of bytes representing the format name and version, in this
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implementation and historically, the string "JAVA PROFILE 1.0.1" (18
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u1 bytes) followed by a NULL byte. If the TAG "HEAP DUMP SEGMENT" is
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used this string will be "JAVA PROFILE 1.0.2". </td>
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</tr>
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<tr>
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<td style="vertical-align: top;">u4<br>
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</td>
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<td style="vertical-align: top;">size of identifiers. Identifiers
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are used to represent UTF8 strings, objects, stack traces, etc. They
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can have the same size as host pointers or sizeof(void*), but are not
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required to be.<span style="color: rgb(0, 0, 0);"></span></td>
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</tr>
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<tr>
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<td style="vertical-align: top;">u4<br>
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</td>
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<td style="vertical-align: top;">high word of number of
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milliseconds since 0:00 GMT, 1/1/70</td>
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</tr>
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<tr>
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<td style="vertical-align: top;">u4<br>
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</td>
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<td style="vertical-align: top;">low word of number of
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milliseconds since 0:00 GMT, 1/1/70</td>
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</tr>
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</tbody>
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</table>
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<br>
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Followed by a se<span style="font-family: monospace;"></span>quence of
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records that look like:<br>
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<br>
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<table style="text-align: left; width: 100%;" border="1" cellpadding="2"
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cellspacing="2">
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<tbody>
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<tr>
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<td style="vertical-align: top;">u1<br>
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</td>
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<td style="vertical-align: top;">TAG: denoting the type of the
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record</td>
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|
|
237 |
</tr>
|
|
|
238 |
<tr>
|
|
|
239 |
<td style="vertical-align: top;">u4<br>
|
|
|
240 |
</td>
|
|
|
241 |
<td style="vertical-align: top;">TIME: number of microseconds
|
|
|
242 |
since the
|
|
|
243 |
time stamp in the header<br>
|
|
|
244 |
</td>
|
|
|
245 |
</tr>
|
|
|
246 |
<tr>
|
|
|
247 |
<td style="vertical-align: top;">u4<br>
|
|
|
248 |
</td>
|
|
|
249 |
<td style="vertical-align: top;">LENGTH: number of bytes that
|
|
|
250 |
follow this
|
|
|
251 |
u4 field and belong to this record<br>
|
|
|
252 |
</td>
|
|
|
253 |
</tr>
|
|
|
254 |
<tr>
|
|
|
255 |
<td style="vertical-align: top;">[u1]*<br>
|
|
|
256 |
</td>
|
|
|
257 |
<td style="vertical-align: top;">BODY: as many bytes as specified
|
|
|
258 |
in
|
|
|
259 |
the above u4 field<br>
|
|
|
260 |
</td>
|
|
|
261 |
</tr>
|
|
|
262 |
</tbody>
|
|
|
263 |
</table>
|
|
|
264 |
<br>
|
|
|
265 |
<br>
|
|
|
266 |
The following TAGs are supported:<br>
|
|
|
267 |
<br>
|
|
|
268 |
<table style="text-align: left; width: 100%;" border="1" cellpadding="2"
|
|
|
269 |
cellspacing="2">
|
|
|
270 |
<tbody>
|
|
|
271 |
<tr>
|
|
|
272 |
<td style="vertical-align: top;">STRING IN UTF8<br>
|
|
|
273 |
</td>
|
|
|
274 |
<td style="vertical-align: top;">0x01<br>
|
|
|
275 |
</td>
|
|
|
276 |
<td style="vertical-align: top;">
|
|
|
277 |
<table style="text-align: left; width: 100%;" border="1"
|
|
|
278 |
cellpadding="2" cellspacing="2">
|
|
|
279 |
<tbody>
|
|
|
280 |
<tr>
|
|
|
281 |
<td style="vertical-align: top;">ID<br>
|
|
|
282 |
</td>
|
|
|
283 |
<td style="vertical-align: top;">ID for this string<br>
|
|
|
284 |
</td>
|
|
|
285 |
</tr>
|
|
|
286 |
<tr>
|
|
|
287 |
<td style="vertical-align: top;">[u1]*<br>
|
|
|
288 |
</td>
|
|
|
289 |
<td style="vertical-align: top;">UTF8 characters for string
|
|
|
290 |
(NOT NULL terminated)<br>
|
|
|
291 |
</td>
|
|
|
292 |
</tr>
|
|
|
293 |
</tbody>
|
|
|
294 |
</table>
|
|
|
295 |
<br>
|
|
|
296 |
</td>
|
|
|
297 |
</tr>
|
|
|
298 |
<tr>
|
|
|
299 |
<td style="vertical-align: top;">LOAD CLASS<br>
|
|
|
300 |
</td>
|
|
|
301 |
<td style="vertical-align: top;">0x02<br>
|
|
|
302 |
</td>
|
|
|
303 |
<td style="vertical-align: top;">
|
|
|
304 |
<table style="text-align: left; width: 100%;" border="1"
|
|
|
305 |
cellpadding="2" cellspacing="2">
|
|
|
306 |
<tbody>
|
|
|
307 |
<tr>
|
|
|
308 |
<td style="vertical-align: top;">u4<br>
|
|
|
309 |
</td>
|
|
|
310 |
<td style="vertical-align: top;">class serial number
|
|
|
311 |
(always > 0)<br>
|
|
|
312 |
</td>
|
|
|
313 |
</tr>
|
|
|
314 |
<tr>
|
|
|
315 |
<td style="vertical-align: top;">ID<br>
|
|
|
316 |
</td>
|
|
|
317 |
<td style="vertical-align: top;">class object ID<br>
|
|
|
318 |
</td>
|
|
|
319 |
</tr>
|
|
|
320 |
<tr>
|
|
|
321 |
<td style="vertical-align: top;">u4<br>
|
|
|
322 |
</td>
|
|
|
323 |
<td style="vertical-align: top;">stack trace serial number<br>
|
|
|
324 |
</td>
|
|
|
325 |
</tr>
|
|
|
326 |
<tr>
|
|
|
327 |
<td style="vertical-align: top;">ID<br>
|
|
|
328 |
</td>
|
|
|
329 |
<td style="vertical-align: top;">class name string ID<br>
|
|
|
330 |
</td>
|
|
|
331 |
</tr>
|
|
|
332 |
</tbody>
|
|
|
333 |
</table>
|
|
|
334 |
<br>
|
|
|
335 |
</td>
|
|
|
336 |
</tr>
|
|
|
337 |
<tr>
|
|
|
338 |
<td style="vertical-align: top;">UNLOAD CLASS<br>
|
|
|
339 |
</td>
|
|
|
340 |
<td style="vertical-align: top;">0x03<br>
|
|
|
341 |
</td>
|
|
|
342 |
<td style="vertical-align: top;">
|
|
|
343 |
<table style="text-align: left; width: 100%;" border="1"
|
|
|
344 |
cellpadding="2" cellspacing="2">
|
|
|
345 |
<tbody>
|
|
|
346 |
<tr>
|
|
|
347 |
<td style="vertical-align: top;">u4<br>
|
|
|
348 |
</td>
|
|
|
349 |
<td style="vertical-align: top;">class serial number<br>
|
|
|
350 |
</td>
|
|
|
351 |
</tr>
|
|
|
352 |
</tbody>
|
|
|
353 |
</table>
|
|
|
354 |
<br>
|
|
|
355 |
</td>
|
|
|
356 |
</tr>
|
|
|
357 |
<tr>
|
|
|
358 |
<td style="vertical-align: top;">STACK FRAME<br>
|
|
|
359 |
</td>
|
|
|
360 |
<td style="vertical-align: top;">0x04<br>
|
|
|
361 |
</td>
|
|
|
362 |
<td style="vertical-align: top;">
|
|
|
363 |
<table style="text-align: left; width: 100%;" border="1"
|
|
|
364 |
cellpadding="2" cellspacing="2">
|
|
|
365 |
<tbody>
|
|
|
366 |
<tr>
|
|
|
367 |
<td style="vertical-align: top;">ID<br>
|
|
|
368 |
</td>
|
|
|
369 |
<td style="vertical-align: top;">stack frame ID<br>
|
|
|
370 |
</td>
|
|
|
371 |
</tr>
|
|
|
372 |
<tr>
|
|
|
373 |
<td style="vertical-align: top;">ID<br>
|
|
|
374 |
</td>
|
|
|
375 |
<td style="vertical-align: top;">method name string ID<br>
|
|
|
376 |
</td>
|
|
|
377 |
</tr>
|
|
|
378 |
<tr>
|
|
|
379 |
<td style="vertical-align: top;">ID<br>
|
|
|
380 |
</td>
|
|
|
381 |
<td style="vertical-align: top;">method signature string ID<br>
|
|
|
382 |
</td>
|
|
|
383 |
</tr>
|
|
|
384 |
<tr>
|
|
|
385 |
<td style="vertical-align: top;">ID<br>
|
|
|
386 |
</td>
|
|
|
387 |
<td style="vertical-align: top;">source file name string ID<br>
|
|
|
388 |
</td>
|
|
|
389 |
</tr>
|
|
|
390 |
<tr>
|
|
|
391 |
<td style="vertical-align: top;">u4<br>
|
|
|
392 |
</td>
|
|
|
393 |
<td style="vertical-align: top;">class serial number<br>
|
|
|
394 |
</td>
|
|
|
395 |
</tr>
|
|
|
396 |
<tr>
|
|
|
397 |
<td style="vertical-align: top;">u4<br>
|
|
|
398 |
</td>
|
|
|
399 |
<td style="vertical-align: top;">
|
|
|
400 |
<table style="text-align: left; width: 100%;" border="1"
|
|
|
401 |
cellpadding="2" cellspacing="2">
|
|
|
402 |
<tbody>
|
|
|
403 |
<tr>
|
|
|
404 |
<td style="vertical-align: top;">> 0<br>
|
|
|
405 |
</td>
|
|
|
406 |
<td style="vertical-align: top;">line number<br>
|
|
|
407 |
</td>
|
|
|
408 |
</tr>
|
|
|
409 |
<tr>
|
|
|
410 |
<td style="vertical-align: top;">0<br>
|
|
|
411 |
</td>
|
|
|
412 |
<td style="vertical-align: top;">no line information
|
|
|
413 |
available<br>
|
|
|
414 |
</td>
|
|
|
415 |
</tr>
|
|
|
416 |
<tr>
|
|
|
417 |
<td style="vertical-align: top;">-1<br>
|
|
|
418 |
</td>
|
|
|
419 |
<td style="vertical-align: top;">unknown location<br>
|
|
|
420 |
</td>
|
|
|
421 |
</tr>
|
|
|
422 |
<tr>
|
|
|
423 |
<td style="vertical-align: top;">-2<br>
|
|
|
424 |
</td>
|
|
|
425 |
<td style="vertical-align: top;">compiled method (<span
|
|
|
426 |
style="font-style: italic; color: rgb(255, 0, 0);">Not implemented</span>)<br>
|
|
|
427 |
</td>
|
|
|
428 |
</tr>
|
|
|
429 |
<tr>
|
|
|
430 |
<td style="vertical-align: top;">-3<br>
|
|
|
431 |
</td>
|
|
|
432 |
<td style="vertical-align: top;">native method (<span
|
|
|
433 |
style="color: rgb(255, 0, 0); font-style: italic;">Not implemented</span>)<br>
|
|
|
434 |
</td>
|
|
|
435 |
</tr>
|
|
|
436 |
</tbody>
|
|
|
437 |
</table>
|
|
|
438 |
<br>
|
|
|
439 |
</td>
|
|
|
440 |
</tr>
|
|
|
441 |
</tbody>
|
|
|
442 |
</table>
|
|
|
443 |
<br>
|
|
|
444 |
</td>
|
|
|
445 |
</tr>
|
|
|
446 |
<tr>
|
|
|
447 |
<td style="vertical-align: top;">STACK TRACE<br>
|
|
|
448 |
</td>
|
|
|
449 |
<td style="vertical-align: top;">0x05<br>
|
|
|
450 |
</td>
|
|
|
451 |
<td style="vertical-align: top;">
|
|
|
452 |
<table style="text-align: left; width: 100%;" border="1"
|
|
|
453 |
cellpadding="2" cellspacing="2">
|
|
|
454 |
<tbody>
|
|
|
455 |
<tr>
|
|
|
456 |
<td style="vertical-align: top;">u4<br>
|
|
|
457 |
</td>
|
|
|
458 |
<td style="vertical-align: top;">stack trace serial number<br>
|
|
|
459 |
</td>
|
|
|
460 |
</tr>
|
|
|
461 |
<tr>
|
|
|
462 |
<td style="vertical-align: top;">u4<br>
|
|
|
463 |
</td>
|
|
|
464 |
<td style="vertical-align: top;">thread serial number<br>
|
|
|
465 |
</td>
|
|
|
466 |
</tr>
|
|
|
467 |
<tr>
|
|
|
468 |
<td style="vertical-align: top;">u4<br>
|
|
|
469 |
</td>
|
|
|
470 |
<td style="vertical-align: top;">number of frames<br>
|
|
|
471 |
</td>
|
|
|
472 |
</tr>
|
|
|
473 |
<tr>
|
|
|
474 |
<td style="vertical-align: top;">[ID]*<br>
|
|
|
475 |
</td>
|
|
|
476 |
<td style="vertical-align: top;">series of stack frame ID's<br>
|
|
|
477 |
</td>
|
|
|
478 |
</tr>
|
|
|
479 |
</tbody>
|
|
|
480 |
</table>
|
|
|
481 |
<br>
|
|
|
482 |
</td>
|
|
|
483 |
</tr>
|
|
|
484 |
<tr>
|
|
|
485 |
<td style="vertical-align: top;">ALLOC SITES<br>
|
|
|
486 |
</td>
|
|
|
487 |
<td style="vertical-align: top;">0x06<br>
|
|
|
488 |
</td>
|
|
|
489 |
<td style="vertical-align: top;">
|
|
|
490 |
<table style="text-align: left; width: 100%;" border="1"
|
|
|
491 |
cellpadding="2" cellspacing="2">
|
|
|
492 |
<tbody>
|
|
|
493 |
<tr>
|
|
|
494 |
<td style="vertical-align: top;">u2<br>
|
|
|
495 |
</td>
|
|
|
496 |
<td style="vertical-align: top;">Bit mask flags:<br>
|
|
|
497 |
<table style="text-align: left; width: 441px; height: 74px;"
|
|
|
498 |
border="1" cellpadding="2" cellspacing="2">
|
|
|
499 |
<tbody>
|
|
|
500 |
<tr>
|
|
|
501 |
<td style="vertical-align: top;">0x1<br>
|
|
|
502 |
</td>
|
|
|
503 |
<td style="vertical-align: top;">incremental vs.
|
|
|
504 |
complete<br>
|
|
|
505 |
</td>
|
|
|
506 |
</tr>
|
|
|
507 |
<tr>
|
|
|
508 |
<td style="vertical-align: top;">0x2<br>
|
|
|
509 |
</td>
|
|
|
510 |
<td style="vertical-align: top; text-align: left;">sorted
|
|
|
511 |
by allocation vs. line<br>
|
|
|
512 |
</td>
|
|
|
513 |
</tr>
|
|
|
514 |
<tr>
|
|
|
515 |
<td style="vertical-align: top;">0x4<br>
|
|
|
516 |
</td>
|
|
|
517 |
<td style="vertical-align: top;">whether to force GC
|
|
|
518 |
(<span style="font-style: italic; color: rgb(255, 0, 0);">Not
|
|
|
519 |
Implemented</span>)<br>
|
|
|
520 |
</td>
|
|
|
521 |
</tr>
|
|
|
522 |
</tbody>
|
|
|
523 |
</table>
|
|
|
524 |
<br>
|
|
|
525 |
</td>
|
|
|
526 |
</tr>
|
|
|
527 |
<tr>
|
|
|
528 |
<td style="vertical-align: top;">u4<br>
|
|
|
529 |
</td>
|
|
|
530 |
<td style="vertical-align: top;">cutoff ratio (floating
|
|
|
531 |
point)<br>
|
|
|
532 |
</td>
|
|
|
533 |
</tr>
|
|
|
534 |
<tr>
|
|
|
535 |
<td style="vertical-align: top;">u4<br>
|
|
|
536 |
</td>
|
|
|
537 |
<td style="vertical-align: top;">total live bytes<br>
|
|
|
538 |
</td>
|
|
|
539 |
</tr>
|
|
|
540 |
<tr>
|
|
|
541 |
<td style="vertical-align: top;">u4<br>
|
|
|
542 |
</td>
|
|
|
543 |
<td style="vertical-align: top;">total live instances<br>
|
|
|
544 |
</td>
|
|
|
545 |
</tr>
|
|
|
546 |
<tr>
|
|
|
547 |
<td style="vertical-align: top;">u8<br>
|
|
|
548 |
</td>
|
|
|
549 |
<td style="vertical-align: top;">total bytes allocated<br>
|
|
|
550 |
</td>
|
|
|
551 |
</tr>
|
|
|
552 |
<tr>
|
|
|
553 |
<td style="vertical-align: top;">u8<br>
|
|
|
554 |
</td>
|
|
|
555 |
<td style="vertical-align: top;">total instances allocated<br>
|
|
|
556 |
</td>
|
|
|
557 |
</tr>
|
|
|
558 |
<tr>
|
|
|
559 |
<td style="vertical-align: top;">u4<br>
|
|
|
560 |
</td>
|
|
|
561 |
<td style="vertical-align: top;">number of sites that
|
|
|
562 |
follow:<br>
|
|
|
563 |
<table style="text-align: left; width: 100%;" border="1"
|
|
|
564 |
cellpadding="2" cellspacing="2">
|
|
|
565 |
<tbody>
|
|
|
566 |
<tr>
|
|
|
567 |
<td style="vertical-align: top;">u1<br>
|
|
|
568 |
</td>
|
|
|
569 |
<td style="vertical-align: top;">array indicator: 0
|
|
|
570 |
means not an array, non-zero means an array of this type (See <a
|
|
|
571 |
href="#Basic_Type">Basic Type</a>)<br>
|
|
|
572 |
</td>
|
|
|
573 |
</tr>
|
|
|
574 |
<tr>
|
|
|
575 |
<td style="vertical-align: top;">u4<br>
|
|
|
576 |
</td>
|
|
|
577 |
<td style="vertical-align: top;">class serial number<br>
|
|
|
578 |
</td>
|
|
|
579 |
</tr>
|
|
|
580 |
<tr>
|
|
|
581 |
<td style="vertical-align: top;">u4<br>
|
|
|
582 |
</td>
|
|
|
583 |
<td style="vertical-align: top;">stack trace serial
|
|
|
584 |
number<br>
|
|
|
585 |
</td>
|
|
|
586 |
</tr>
|
|
|
587 |
<tr>
|
|
|
588 |
<td style="vertical-align: top;">u4<br>
|
|
|
589 |
</td>
|
|
|
590 |
<td style="vertical-align: top;">number of live bytes<br>
|
|
|
591 |
</td>
|
|
|
592 |
</tr>
|
|
|
593 |
<tr>
|
|
|
594 |
<td style="vertical-align: top;">u4<br>
|
|
|
595 |
</td>
|
|
|
596 |
<td style="vertical-align: top;">number of live
|
|
|
597 |
instances<br>
|
|
|
598 |
</td>
|
|
|
599 |
</tr>
|
|
|
600 |
<tr>
|
|
|
601 |
<td style="vertical-align: top;">u4<br>
|
|
|
602 |
</td>
|
|
|
603 |
<td style="vertical-align: top;">number of bytes
|
|
|
604 |
allocated<br>
|
|
|
605 |
</td>
|
|
|
606 |
</tr>
|
|
|
607 |
<tr>
|
|
|
608 |
<td style="vertical-align: top;">u4<br>
|
|
|
609 |
</td>
|
|
|
610 |
<td style="vertical-align: top;">number of instances
|
|
|
611 |
allocated<br>
|
|
|
612 |
</td>
|
|
|
613 |
</tr>
|
|
|
614 |
</tbody>
|
|
|
615 |
</table>
|
|
|
616 |
<br>
|
|
|
617 |
</td>
|
|
|
618 |
</tr>
|
|
|
619 |
</tbody>
|
|
|
620 |
</table>
|
|
|
621 |
<br>
|
|
|
622 |
</td>
|
|
|
623 |
</tr>
|
|
|
624 |
<tr>
|
|
|
625 |
<td style="vertical-align: top;">HEAP SUMMARY<br>
|
|
|
626 |
</td>
|
|
|
627 |
<td style="vertical-align: top;">0x07<br>
|
|
|
628 |
</td>
|
|
|
629 |
<td style="vertical-align: top;">
|
|
|
630 |
<table style="text-align: left; width: 100%;" border="1"
|
|
|
631 |
cellpadding="2" cellspacing="2">
|
|
|
632 |
<tbody>
|
|
|
633 |
<tr>
|
|
|
634 |
<td style="vertical-align: top;">u4<br>
|
|
|
635 |
</td>
|
|
|
636 |
<td style="vertical-align: top;">total live bytes<br>
|
|
|
637 |
</td>
|
|
|
638 |
</tr>
|
|
|
639 |
<tr>
|
|
|
640 |
<td style="vertical-align: top;">u4<br>
|
|
|
641 |
</td>
|
|
|
642 |
<td style="vertical-align: top;">total live instances<br>
|
|
|
643 |
</td>
|
|
|
644 |
</tr>
|
|
|
645 |
<tr>
|
|
|
646 |
<td style="vertical-align: top;">u8<br>
|
|
|
647 |
</td>
|
|
|
648 |
<td style="vertical-align: top;">total bytes allocated<br>
|
|
|
649 |
</td>
|
|
|
650 |
</tr>
|
|
|
651 |
<tr>
|
|
|
652 |
<td style="vertical-align: top;">u8<br>
|
|
|
653 |
</td>
|
|
|
654 |
<td style="vertical-align: top;">total instances allocated<br>
|
|
|
655 |
</td>
|
|
|
656 |
</tr>
|
|
|
657 |
</tbody>
|
|
|
658 |
</table>
|
|
|
659 |
<br>
|
|
|
660 |
</td>
|
|
|
661 |
</tr>
|
|
|
662 |
<tr>
|
|
|
663 |
<td style="vertical-align: top;">START THREAD<br>
|
|
|
664 |
</td>
|
|
|
665 |
<td style="vertical-align: top;">0x0A<br>
|
|
|
666 |
</td>
|
|
|
667 |
<td style="vertical-align: top;">
|
|
|
668 |
<table style="text-align: left; width: 100%;" border="1"
|
|
|
669 |
cellpadding="2" cellspacing="2">
|
|
|
670 |
<tbody>
|
|
|
671 |
<tr>
|
|
|
672 |
<td style="vertical-align: top;">u4<br>
|
|
|
673 |
</td>
|
|
|
674 |
<td style="vertical-align: top;">thread serial number<br>
|
|
|
675 |
</td>
|
|
|
676 |
</tr>
|
|
|
677 |
<tr>
|
|
|
678 |
<td style="vertical-align: top;">ID<br>
|
|
|
679 |
</td>
|
|
|
680 |
<td style="vertical-align: top;">thread object ID<br>
|
|
|
681 |
</td>
|
|
|
682 |
</tr>
|
|
|
683 |
<tr>
|
|
|
684 |
<td style="vertical-align: top;">u4<br>
|
|
|
685 |
</td>
|
|
|
686 |
<td style="vertical-align: top;">stack trace serial number<br>
|
|
|
687 |
</td>
|
|
|
688 |
</tr>
|
|
|
689 |
<tr>
|
|
|
690 |
<td style="vertical-align: top;">ID<br>
|
|
|
691 |
</td>
|
|
|
692 |
<td style="vertical-align: top;">thread name string ID<br>
|
|
|
693 |
</td>
|
|
|
694 |
</tr>
|
|
|
695 |
<tr>
|
|
|
696 |
<td style="vertical-align: top;">ID<br>
|
|
|
697 |
</td>
|
|
|
698 |
<td style="vertical-align: top;">thread group name ID<br>
|
|
|
699 |
</td>
|
|
|
700 |
</tr>
|
|
|
701 |
<tr>
|
|
|
702 |
<td style="vertical-align: top;">ID<br>
|
|
|
703 |
</td>
|
|
|
704 |
<td style="vertical-align: top;">thread parent group name ID<br>
|
|
|
705 |
</td>
|
|
|
706 |
</tr>
|
|
|
707 |
</tbody>
|
|
|
708 |
</table>
|
|
|
709 |
<br>
|
|
|
710 |
</td>
|
|
|
711 |
</tr>
|
|
|
712 |
<tr>
|
|
|
713 |
<td style="vertical-align: top;">END THREAD<br>
|
|
|
714 |
</td>
|
|
|
715 |
<td style="vertical-align: top;">0x0B<br>
|
|
|
716 |
</td>
|
|
|
717 |
<td style="vertical-align: top;">
|
|
|
718 |
<table style="text-align: left; width: 100%;" border="1"
|
|
|
719 |
cellpadding="2" cellspacing="2">
|
|
|
720 |
<tbody>
|
|
|
721 |
<tr>
|
|
|
722 |
<td style="vertical-align: top;">u4<br>
|
|
|
723 |
</td>
|
|
|
724 |
<td style="vertical-align: top;">thread serial number<br>
|
|
|
725 |
</td>
|
|
|
726 |
</tr>
|
|
|
727 |
</tbody>
|
|
|
728 |
</table>
|
|
|
729 |
<br>
|
|
|
730 |
</td>
|
|
|
731 |
</tr>
|
|
|
732 |
<tr>
|
|
|
733 |
<td style="vertical-align: top;">HEAP DUMP<br>
|
|
|
734 |
<span style="font-style: italic;">or</span><br>
|
|
|
735 |
HEAP DUMP SEGMENT<br>
|
|
|
736 |
</td>
|
|
|
737 |
<td style="vertical-align: top;">0x0C<br>
|
|
|
738 |
<span style="font-style: italic;">or</span><br>
|
|
|
739 |
0x1C<br>
|
|
|
740 |
</td>
|
|
|
741 |
<td style="vertical-align: top;">Contains any number of sub-tags,
|
|
|
742 |
each begins a u1 field (no order implied here):<br>
|
|
|
743 |
<table style="text-align: left; width: 100%;" border="1"
|
|
|
744 |
cellpadding="2" cellspacing="2">
|
|
|
745 |
<tbody>
|
|
|
746 |
<tr>
|
|
|
747 |
<td style="vertical-align: top;">ROOT UNKNOWN<br>
|
|
|
748 |
</td>
|
|
|
749 |
<td style="vertical-align: top;">0xFF<br>
|
|
|
750 |
</td>
|
|
|
751 |
<td style="vertical-align: top;">
|
|
|
752 |
<table style="text-align: left; width: 100%;" border="1"
|
|
|
753 |
cellpadding="2" cellspacing="2">
|
|
|
754 |
<tbody>
|
|
|
755 |
<tr>
|
|
|
756 |
<td style="vertical-align: top;">ID<br>
|
|
|
757 |
</td>
|
|
|
758 |
<td style="vertical-align: top;">object ID<br>
|
|
|
759 |
</td>
|
|
|
760 |
</tr>
|
|
|
761 |
</tbody>
|
|
|
762 |
</table>
|
|
|
763 |
<br>
|
|
|
764 |
</td>
|
|
|
765 |
</tr>
|
|
|
766 |
<tr>
|
|
|
767 |
<td style="vertical-align: top;">ROOT JNI GLOBAL<br>
|
|
|
768 |
</td>
|
|
|
769 |
<td style="vertical-align: top;">0x01<br>
|
|
|
770 |
</td>
|
|
|
771 |
<td style="vertical-align: top;">
|
|
|
772 |
<table style="text-align: left; width: 100%;" border="1"
|
|
|
773 |
cellpadding="2" cellspacing="2">
|
|
|
774 |
<tbody>
|
|
|
775 |
<tr>
|
|
|
776 |
<td style="vertical-align: top;">ID<br>
|
|
|
777 |
</td>
|
|
|
778 |
<td style="vertical-align: top;">object ID<br>
|
|
|
779 |
</td>
|
|
|
780 |
</tr>
|
|
|
781 |
<tr>
|
|
|
782 |
<td style="vertical-align: top;">ID<br>
|
|
|
783 |
</td>
|
|
|
784 |
<td style="vertical-align: top;">JNI global ref ID<br>
|
|
|
785 |
</td>
|
|
|
786 |
</tr>
|
|
|
787 |
</tbody>
|
|
|
788 |
</table>
|
|
|
789 |
<br>
|
|
|
790 |
</td>
|
|
|
791 |
</tr>
|
|
|
792 |
<tr>
|
|
|
793 |
<td style="vertical-align: top;">ROOT JNI LOCAL<br>
|
|
|
794 |
</td>
|
|
|
795 |
<td style="vertical-align: top;">0x02<br>
|
|
|
796 |
</td>
|
|
|
797 |
<td style="vertical-align: top;">
|
|
|
798 |
<table style="text-align: left; width: 100%;" border="1"
|
|
|
799 |
cellpadding="2" cellspacing="2">
|
|
|
800 |
<tbody>
|
|
|
801 |
<tr>
|
|
|
802 |
<td style="vertical-align: top;">ID<br>
|
|
|
803 |
</td>
|
|
|
804 |
<td style="vertical-align: top;">object ID<br>
|
|
|
805 |
</td>
|
|
|
806 |
</tr>
|
|
|
807 |
<tr>
|
|
|
808 |
<td style="vertical-align: top;">u4<br>
|
|
|
809 |
</td>
|
|
|
810 |
<td style="vertical-align: top;">thread serial number<br>
|
|
|
811 |
</td>
|
|
|
812 |
</tr>
|
|
|
813 |
<tr>
|
|
|
814 |
<td style="vertical-align: top;">u4<br>
|
|
|
815 |
</td>
|
|
|
816 |
<td style="vertical-align: top;">frame number in
|
|
|
817 |
stack trace (-1 for empty)<br>
|
|
|
818 |
</td>
|
|
|
819 |
</tr>
|
|
|
820 |
</tbody>
|
|
|
821 |
</table>
|
|
|
822 |
<br>
|
|
|
823 |
</td>
|
|
|
824 |
</tr>
|
|
|
825 |
<tr>
|
|
|
826 |
<td style="vertical-align: top;">ROOT JAVA FRAME<br>
|
|
|
827 |
</td>
|
|
|
828 |
<td style="vertical-align: top;">0x03<br>
|
|
|
829 |
</td>
|
|
|
830 |
<td style="vertical-align: top;">
|
|
|
831 |
<table style="text-align: left; width: 100%;" border="1"
|
|
|
832 |
cellpadding="2" cellspacing="2">
|
|
|
833 |
<tbody>
|
|
|
834 |
<tr>
|
|
|
835 |
<td style="vertical-align: top;">ID<br>
|
|
|
836 |
</td>
|
|
|
837 |
<td style="vertical-align: top;">object ID<br>
|
|
|
838 |
</td>
|
|
|
839 |
</tr>
|
|
|
840 |
<tr>
|
|
|
841 |
<td style="vertical-align: top;">u4<br>
|
|
|
842 |
</td>
|
|
|
843 |
<td style="vertical-align: top;">thread serial number<br>
|
|
|
844 |
</td>
|
|
|
845 |
</tr>
|
|
|
846 |
<tr>
|
|
|
847 |
<td style="vertical-align: top;">u4<br>
|
|
|
848 |
</td>
|
|
|
849 |
<td style="vertical-align: top;">frame number in
|
|
|
850 |
stack trace (-1 for empty)</td>
|
|
|
851 |
</tr>
|
|
|
852 |
</tbody>
|
|
|
853 |
</table>
|
|
|
854 |
<br>
|
|
|
855 |
</td>
|
|
|
856 |
</tr>
|
|
|
857 |
<tr>
|
|
|
858 |
<td style="vertical-align: top;">ROOT NATIVE STACK<br>
|
|
|
859 |
</td>
|
|
|
860 |
<td style="vertical-align: top;">0x04<br>
|
|
|
861 |
</td>
|
|
|
862 |
<td style="vertical-align: top;">
|
|
|
863 |
<table style="text-align: left; width: 100%;" border="1"
|
|
|
864 |
cellpadding="2" cellspacing="2">
|
|
|
865 |
<tbody>
|
|
|
866 |
<tr>
|
|
|
867 |
<td style="vertical-align: top;">ID<br>
|
|
|
868 |
</td>
|
|
|
869 |
<td style="vertical-align: top;">object ID<br>
|
|
|
870 |
</td>
|
|
|
871 |
</tr>
|
|
|
872 |
<tr>
|
|
|
873 |
<td style="vertical-align: top;">u4<br>
|
|
|
874 |
</td>
|
|
|
875 |
<td style="vertical-align: top;">thread serial number<br>
|
|
|
876 |
</td>
|
|
|
877 |
</tr>
|
|
|
878 |
</tbody>
|
|
|
879 |
</table>
|
|
|
880 |
<br>
|
|
|
881 |
</td>
|
|
|
882 |
</tr>
|
|
|
883 |
<tr>
|
|
|
884 |
<td style="vertical-align: top;">ROOT STICKY CLASS<br>
|
|
|
885 |
</td>
|
|
|
886 |
<td style="vertical-align: top;">0x05<br>
|
|
|
887 |
</td>
|
|
|
888 |
<td style="vertical-align: top;">
|
|
|
889 |
<table style="text-align: left; width: 100%;" border="1"
|
|
|
890 |
cellpadding="2" cellspacing="2">
|
|
|
891 |
<tbody>
|
|
|
892 |
<tr>
|
|
|
893 |
<td style="vertical-align: top;">ID<br>
|
|
|
894 |
</td>
|
|
|
895 |
<td style="vertical-align: top;">object ID<br>
|
|
|
896 |
</td>
|
|
|
897 |
</tr>
|
|
|
898 |
</tbody>
|
|
|
899 |
</table>
|
|
|
900 |
<br>
|
|
|
901 |
</td>
|
|
|
902 |
</tr>
|
|
|
903 |
<tr>
|
|
|
904 |
<td style="vertical-align: top;">ROOT THREAD BLOCK<br>
|
|
|
905 |
</td>
|
|
|
906 |
<td style="vertical-align: top;">0x06<br>
|
|
|
907 |
</td>
|
|
|
908 |
<td style="vertical-align: top;">
|
|
|
909 |
<table style="text-align: left; width: 100%;" border="1"
|
|
|
910 |
cellpadding="2" cellspacing="2">
|
|
|
911 |
<tbody>
|
|
|
912 |
<tr>
|
|
|
913 |
<td style="vertical-align: top;">ID<br>
|
|
|
914 |
</td>
|
|
|
915 |
<td style="vertical-align: top;">object ID<br>
|
|
|
916 |
</td>
|
|
|
917 |
</tr>
|
|
|
918 |
<tr>
|
|
|
919 |
<td style="vertical-align: top;">u4<br>
|
|
|
920 |
</td>
|
|
|
921 |
<td style="vertical-align: top;">thread serial number<br>
|
|
|
922 |
</td>
|
|
|
923 |
</tr>
|
|
|
924 |
</tbody>
|
|
|
925 |
</table>
|
|
|
926 |
<br>
|
|
|
927 |
</td>
|
|
|
928 |
</tr>
|
|
|
929 |
<tr>
|
|
|
930 |
<td style="vertical-align: top;">ROOT MONITOR USED<br>
|
|
|
931 |
</td>
|
|
|
932 |
<td style="vertical-align: top;">0x07<br>
|
|
|
933 |
</td>
|
|
|
934 |
<td style="vertical-align: top;">
|
|
|
935 |
<table style="text-align: left; width: 100%;" border="1"
|
|
|
936 |
cellpadding="2" cellspacing="2">
|
|
|
937 |
<tbody>
|
|
|
938 |
<tr>
|
|
|
939 |
<td style="vertical-align: top;">ID<br>
|
|
|
940 |
</td>
|
|
|
941 |
<td style="vertical-align: top;">object ID<br>
|
|
|
942 |
</td>
|
|
|
943 |
</tr>
|
|
|
944 |
</tbody>
|
|
|
945 |
</table>
|
|
|
946 |
<br>
|
|
|
947 |
</td>
|
|
|
948 |
</tr>
|
|
|
949 |
<tr>
|
|
|
950 |
<td style="vertical-align: top;">ROOT THREAD OBJECT<br>
|
|
|
951 |
</td>
|
|
|
952 |
<td style="vertical-align: top;">0x08<br>
|
|
|
953 |
</td>
|
|
|
954 |
<td style="vertical-align: top;">
|
|
|
955 |
<table style="text-align: left; width: 100%;" border="1"
|
|
|
956 |
cellpadding="2" cellspacing="2">
|
|
|
957 |
<tbody>
|
|
|
958 |
<tr>
|
|
|
959 |
<td style="vertical-align: top;">ID<br>
|
|
|
960 |
</td>
|
|
|
961 |
<td style="vertical-align: top;">thread object ID<br>
|
|
|
962 |
</td>
|
|
|
963 |
</tr>
|
|
|
964 |
<tr>
|
|
|
965 |
<td style="vertical-align: top;">u4<br>
|
|
|
966 |
</td>
|
|
|
967 |
<td style="vertical-align: top;">thread serial number<br>
|
|
|
968 |
</td>
|
|
|
969 |
</tr>
|
|
|
970 |
<tr>
|
|
|
971 |
<td style="vertical-align: top;">u4<br>
|
|
|
972 |
</td>
|
|
|
973 |
<td style="vertical-align: top;">stack trace serial
|
|
|
974 |
number<br>
|
|
|
975 |
</td>
|
|
|
976 |
</tr>
|
|
|
977 |
</tbody>
|
|
|
978 |
</table>
|
|
|
979 |
<br>
|
|
|
980 |
</td>
|
|
|
981 |
</tr>
|
|
|
982 |
<tr>
|
|
|
983 |
<td style="vertical-align: top;">CLASS DUMP<br>
|
|
|
984 |
</td>
|
|
|
985 |
<td style="vertical-align: top;">0x20<br>
|
|
|
986 |
</td>
|
|
|
987 |
<td style="vertical-align: top;">
|
|
|
988 |
<table style="text-align: left; width: 100%;" border="1"
|
|
|
989 |
cellpadding="2" cellspacing="2">
|
|
|
990 |
<tbody>
|
|
|
991 |
<tr>
|
|
|
992 |
<td style="vertical-align: top;">ID<br>
|
|
|
993 |
</td>
|
|
|
994 |
<td style="vertical-align: top;">class object ID<br>
|
|
|
995 |
</td>
|
|
|
996 |
</tr>
|
|
|
997 |
<tr>
|
|
|
998 |
<td style="vertical-align: top;">u4<br>
|
|
|
999 |
</td>
|
|
|
1000 |
<td style="vertical-align: top;">stack trace serial
|
|
|
1001 |
number<br>
|
|
|
1002 |
</td>
|
|
|
1003 |
</tr>
|
|
|
1004 |
<tr>
|
|
|
1005 |
<td style="vertical-align: top;">ID<br>
|
|
|
1006 |
</td>
|
|
|
1007 |
<td style="vertical-align: top;">super class object ID<br>
|
|
|
1008 |
</td>
|
|
|
1009 |
</tr>
|
|
|
1010 |
<tr>
|
|
|
1011 |
<td style="vertical-align: top;">ID<br>
|
|
|
1012 |
</td>
|
|
|
1013 |
<td style="vertical-align: top;">class loader object
|
|
|
1014 |
ID<br>
|
|
|
1015 |
</td>
|
|
|
1016 |
</tr>
|
|
|
1017 |
<tr>
|
|
|
1018 |
<td style="vertical-align: top;">ID<br>
|
|
|
1019 |
</td>
|
|
|
1020 |
<td style="vertical-align: top;">signers object ID<br>
|
|
|
1021 |
</td>
|
|
|
1022 |
</tr>
|
|
|
1023 |
<tr>
|
|
|
1024 |
<td style="vertical-align: top;">ID<br>
|
|
|
1025 |
</td>
|
|
|
1026 |
<td style="vertical-align: top;">protection domain
|
|
|
1027 |
object ID<br>
|
|
|
1028 |
</td>
|
|
|
1029 |
</tr>
|
|
|
1030 |
<tr>
|
|
|
1031 |
<td style="vertical-align: top;">ID<br>
|
|
|
1032 |
</td>
|
|
|
1033 |
<td style="vertical-align: top;">reserved<br>
|
|
|
1034 |
</td>
|
|
|
1035 |
</tr>
|
|
|
1036 |
<tr>
|
|
|
1037 |
<td style="vertical-align: top;">ID<br>
|
|
|
1038 |
</td>
|
|
|
1039 |
<td style="vertical-align: top;">reserved<br>
|
|
|
1040 |
</td>
|
|
|
1041 |
</tr>
|
|
|
1042 |
<tr>
|
|
|
1043 |
<td style="vertical-align: top;">u4<br>
|
|
|
1044 |
</td>
|
|
|
1045 |
<td style="vertical-align: top;">instance size (in
|
|
|
1046 |
bytes)<br>
|
|
|
1047 |
</td>
|
|
|
1048 |
</tr>
|
|
|
1049 |
<tr>
|
|
|
1050 |
<td style="vertical-align: top;">u2<br>
|
|
|
1051 |
</td>
|
|
|
1052 |
<td style="vertical-align: top;">size of constant
|
|
|
1053 |
pool and number of records that follow:<br>
|
|
|
1054 |
<table style="text-align: left; width: 100%;"
|
|
|
1055 |
border="1" cellpadding="2" cellspacing="2">
|
|
|
1056 |
<tbody>
|
|
|
1057 |
<tr>
|
|
|
1058 |
<td style="vertical-align: top;">u2<br>
|
|
|
1059 |
</td>
|
|
|
1060 |
<td style="vertical-align: top;">constant pool
|
|
|
1061 |
index<br>
|
|
|
1062 |
</td>
|
|
|
1063 |
</tr>
|
|
|
1064 |
<tr>
|
|
|
1065 |
<td style="vertical-align: top;">u1<br>
|
|
|
1066 |
</td>
|
|
|
1067 |
<td style="vertical-align: top;">type of entry:
|
|
|
1068 |
(See <a href="#Basic_Type">Basic Type</a>)<br>
|
|
|
1069 |
</td>
|
|
|
1070 |
</tr>
|
|
|
1071 |
<tr>
|
|
|
1072 |
<td style="vertical-align: top;">value<br>
|
|
|
1073 |
</td>
|
|
|
1074 |
<td style="vertical-align: top;">value of entry
|
|
|
1075 |
(u1, u2, u4, or u8 based on type of entry)<span
|
|
|
1076 |
style="font-style: italic; color: rgb(255, 0, 0);"></span><br>
|
|
|
1077 |
</td>
|
|
|
1078 |
</tr>
|
|
|
1079 |
</tbody>
|
|
|
1080 |
</table>
|
|
|
1081 |
<br>
|
|
|
1082 |
</td>
|
|
|
1083 |
</tr>
|
|
|
1084 |
<tr>
|
|
|
1085 |
<td style="vertical-align: top;">u2<br>
|
|
|
1086 |
</td>
|
|
|
1087 |
<td style="vertical-align: top;">Number of static
|
|
|
1088 |
fields:<br>
|
|
|
1089 |
<table style="text-align: left; width: 100%;"
|
|
|
1090 |
border="1" cellpadding="2" cellspacing="2">
|
|
|
1091 |
<tbody>
|
|
|
1092 |
<tr>
|
|
|
1093 |
<td style="vertical-align: top;">ID<br>
|
|
|
1094 |
</td>
|
|
|
1095 |
<td style="vertical-align: top;">static field
|
|
|
1096 |
name string ID<br>
|
|
|
1097 |
</td>
|
|
|
1098 |
</tr>
|
|
|
1099 |
<tr>
|
|
|
1100 |
<td style="vertical-align: top;">u1<br>
|
|
|
1101 |
</td>
|
|
|
1102 |
<td style="vertical-align: top;">type of field:
|
|
|
1103 |
(See <a href="#Basic_Type">Basic Type</a>)<br>
|
|
|
1104 |
</td>
|
|
|
1105 |
</tr>
|
|
|
1106 |
<tr>
|
|
|
1107 |
<td style="vertical-align: top;">value<br>
|
|
|
1108 |
</td>
|
|
|
1109 |
<td style="vertical-align: top;">value of entry
|
|
|
1110 |
(u1, u2, u4, or u8 based on type of field) <span
|
|
|
1111 |
style="font-style: italic; color: rgb(255, 0, 0);"></span><br>
|
|
|
1112 |
</td>
|
|
|
1113 |
</tr>
|
|
|
1114 |
</tbody>
|
|
|
1115 |
</table>
|
|
|
1116 |
<br>
|
|
|
1117 |
</td>
|
|
|
1118 |
</tr>
|
|
|
1119 |
<tr>
|
|
|
1120 |
<td style="vertical-align: top;">u2<br>
|
|
|
1121 |
</td>
|
|
|
1122 |
<td style="vertical-align: top;">Number of instance
|
|
|
1123 |
fields (not including super class's)<br>
|
|
|
1124 |
<table style="text-align: left; width: 100%;"
|
|
|
1125 |
border="1" cellpadding="2" cellspacing="2">
|
|
|
1126 |
<tbody>
|
|
|
1127 |
<tr>
|
|
|
1128 |
<td style="vertical-align: top;">ID<br>
|
|
|
1129 |
</td>
|
|
|
1130 |
<td style="vertical-align: top;">field name
|
|
|
1131 |
string ID<br>
|
|
|
1132 |
</td>
|
|
|
1133 |
</tr>
|
|
|
1134 |
<tr>
|
|
|
1135 |
<td style="vertical-align: top;">u1<br>
|
|
|
1136 |
</td>
|
|
|
1137 |
<td style="vertical-align: top;">type of field:
|
|
|
1138 |
(See <a href="#Basic_Type">Basic Type</a>)<br>
|
|
|
1139 |
</td>
|
|
|
1140 |
</tr>
|
|
|
1141 |
</tbody>
|
|
|
1142 |
</table>
|
|
|
1143 |
<br>
|
|
|
1144 |
</td>
|
|
|
1145 |
</tr>
|
|
|
1146 |
</tbody>
|
|
|
1147 |
</table>
|
|
|
1148 |
<br>
|
|
|
1149 |
</td>
|
|
|
1150 |
</tr>
|
|
|
1151 |
<tr>
|
|
|
1152 |
<td style="vertical-align: top;">INSTANCE DUMP<br>
|
|
|
1153 |
</td>
|
|
|
1154 |
<td style="vertical-align: top;">0x21<br>
|
|
|
1155 |
</td>
|
|
|
1156 |
<td style="vertical-align: top;"><br>
|
|
|
1157 |
<table style="text-align: left; width: 100%;" border="1"
|
|
|
1158 |
cellpadding="2" cellspacing="2">
|
|
|
1159 |
<tbody>
|
|
|
1160 |
<tr>
|
|
|
1161 |
<td style="vertical-align: top;">ID<br>
|
|
|
1162 |
</td>
|
|
|
1163 |
<td style="vertical-align: top;">object ID<br>
|
|
|
1164 |
</td>
|
|
|
1165 |
</tr>
|
|
|
1166 |
<tr>
|
|
|
1167 |
<td style="vertical-align: top;">u4<br>
|
|
|
1168 |
</td>
|
|
|
1169 |
<td style="vertical-align: top;">stack trace serial
|
|
|
1170 |
number<br>
|
|
|
1171 |
</td>
|
|
|
1172 |
</tr>
|
|
|
1173 |
<tr>
|
|
|
1174 |
<td style="vertical-align: top;">ID<br>
|
|
|
1175 |
</td>
|
|
|
1176 |
<td style="vertical-align: top;">class object ID<br>
|
|
|
1177 |
</td>
|
|
|
1178 |
</tr>
|
|
|
1179 |
<tr>
|
|
|
1180 |
<td style="vertical-align: top;">u4<br>
|
|
|
1181 |
</td>
|
|
|
1182 |
<td style="vertical-align: top;">number of bytes that
|
|
|
1183 |
follow<br>
|
|
|
1184 |
</td>
|
|
|
1185 |
</tr>
|
|
|
1186 |
<tr>
|
|
|
1187 |
<td style="vertical-align: top;">[value]*<br>
|
|
|
1188 |
</td>
|
|
|
1189 |
<td style="vertical-align: top;">instance field
|
|
|
1190 |
values (this class, followed by super class, etc)<span
|
|
|
1191 |
style="font-style: italic; color: rgb(255, 0, 0);"></span><br>
|
|
|
1192 |
</td>
|
|
|
1193 |
</tr>
|
|
|
1194 |
</tbody>
|
|
|
1195 |
</table>
|
|
|
1196 |
<br>
|
|
|
1197 |
</td>
|
|
|
1198 |
</tr>
|
|
|
1199 |
<tr>
|
|
|
1200 |
<td style="vertical-align: top;">OBJECT ARRAY DUMP<br>
|
|
|
1201 |
</td>
|
|
|
1202 |
<td style="vertical-align: top;">0x22<br>
|
|
|
1203 |
</td>
|
|
|
1204 |
<td style="vertical-align: top;"><br>
|
|
|
1205 |
<table style="text-align: left; width: 100%;" border="1"
|
|
|
1206 |
cellpadding="2" cellspacing="2">
|
|
|
1207 |
<tbody>
|
|
|
1208 |
<tr>
|
|
|
1209 |
<td style="vertical-align: top;">ID<br>
|
|
|
1210 |
</td>
|
|
|
1211 |
<td style="vertical-align: top;">array object ID<br>
|
|
|
1212 |
</td>
|
|
|
1213 |
</tr>
|
|
|
1214 |
<tr>
|
|
|
1215 |
<td style="vertical-align: top;">u4<br>
|
|
|
1216 |
</td>
|
|
|
1217 |
<td style="vertical-align: top;">stack trace serial
|
|
|
1218 |
number<br>
|
|
|
1219 |
</td>
|
|
|
1220 |
</tr>
|
|
|
1221 |
<tr>
|
|
|
1222 |
<td style="vertical-align: top;">u4<br>
|
|
|
1223 |
</td>
|
|
|
1224 |
<td style="vertical-align: top;">number of elements<br>
|
|
|
1225 |
</td>
|
|
|
1226 |
</tr>
|
|
|
1227 |
<tr>
|
|
|
1228 |
<td style="vertical-align: top;">ID<br>
|
|
|
1229 |
</td>
|
|
|
1230 |
<td style="vertical-align: top;">array class object
|
|
|
1231 |
ID<br>
|
|
|
1232 |
</td>
|
|
|
1233 |
</tr>
|
|
|
1234 |
<tr>
|
|
|
1235 |
<td style="vertical-align: top;">[ID]*<br>
|
|
|
1236 |
</td>
|
|
|
1237 |
<td style="vertical-align: top;">elements<br>
|
|
|
1238 |
</td>
|
|
|
1239 |
</tr>
|
|
|
1240 |
</tbody>
|
|
|
1241 |
</table>
|
|
|
1242 |
<br>
|
|
|
1243 |
</td>
|
|
|
1244 |
</tr>
|
|
|
1245 |
<tr>
|
|
|
1246 |
<td style="vertical-align: top;">PRIMITIVE ARRAY DUMP<br>
|
|
|
1247 |
</td>
|
|
|
1248 |
<td style="vertical-align: top;">0x23<br>
|
|
|
1249 |
</td>
|
|
|
1250 |
<td style="vertical-align: top;">
|
|
|
1251 |
<table style="text-align: left; width: 100%;" border="1"
|
|
|
1252 |
cellpadding="2" cellspacing="2">
|
|
|
1253 |
<tbody>
|
|
|
1254 |
<tr>
|
|
|
1255 |
<td style="vertical-align: top;">ID<br>
|
|
|
1256 |
</td>
|
|
|
1257 |
<td style="vertical-align: top;">array object ID<br>
|
|
|
1258 |
</td>
|
|
|
1259 |
</tr>
|
|
|
1260 |
<tr>
|
|
|
1261 |
<td style="vertical-align: top;">u4<br>
|
|
|
1262 |
</td>
|
|
|
1263 |
<td style="vertical-align: top;">stack trace serial
|
|
|
1264 |
number<br>
|
|
|
1265 |
</td>
|
|
|
1266 |
</tr>
|
|
|
1267 |
<tr>
|
|
|
1268 |
<td style="vertical-align: top;">u4<br>
|
|
|
1269 |
</td>
|
|
|
1270 |
<td style="vertical-align: top;">number of elements<br>
|
|
|
1271 |
</td>
|
|
|
1272 |
</tr>
|
|
|
1273 |
<tr>
|
|
|
1274 |
<td style="vertical-align: top;">u1<br>
|
|
|
1275 |
</td>
|
|
|
1276 |
<td style="vertical-align: top;">element type (See <a
|
|
|
1277 |
href="#Basic_Type">Basic Type</a>)<br>
|
|
|
1278 |
</td>
|
|
|
1279 |
</tr>
|
|
|
1280 |
<tr>
|
|
|
1281 |
<td style="vertical-align: top;">[u1]*<br>
|
|
|
1282 |
</td>
|
|
|
1283 |
<td style="vertical-align: top;">elements (packed
|
|
|
1284 |
array) </td>
|
|
|
1285 |
</tr>
|
|
|
1286 |
</tbody>
|
|
|
1287 |
</table>
|
|
|
1288 |
<br>
|
|
|
1289 |
</td>
|
|
|
1290 |
</tr>
|
|
|
1291 |
</tbody>
|
|
|
1292 |
</table>
|
|
|
1293 |
<br>
|
|
|
1294 |
</td>
|
|
|
1295 |
</tr>
|
|
|
1296 |
<tr>
|
|
|
1297 |
<td style="vertical-align: top;">HEAP DUMP END<br>
|
|
|
1298 |
</td>
|
|
|
1299 |
<td style="vertical-align: top;">0x2C<br>
|
|
|
1300 |
</td>
|
|
|
1301 |
<td style="vertical-align: top;">Terminates a series of HEAP DUMP
|
|
|
1302 |
SEGMENTS. Concatenation of HEAP DUMP SEGMENTS equals a HEAP DUMP.<br>
|
|
|
1303 |
</td>
|
|
|
1304 |
</tr>
|
|
|
1305 |
<tr>
|
|
|
1306 |
<td style="vertical-align: top;">CPU SAMPLES<br>
|
|
|
1307 |
</td>
|
|
|
1308 |
<td style="vertical-align: top;">0x0D<br>
|
|
|
1309 |
</td>
|
|
|
1310 |
<td style="vertical-align: top;">
|
|
|
1311 |
<table style="text-align: left; width: 100%;" border="1"
|
|
|
1312 |
cellpadding="2" cellspacing="2">
|
|
|
1313 |
<tbody>
|
|
|
1314 |
<tr>
|
|
|
1315 |
<td style="vertical-align: top;">u4<br>
|
|
|
1316 |
</td>
|
|
|
1317 |
<td style="vertical-align: top;">total number of samples<br>
|
|
|
1318 |
</td>
|
|
|
1319 |
</tr>
|
|
|
1320 |
<tr>
|
|
|
1321 |
<td style="vertical-align: top;">u4<br>
|
|
|
1322 |
</td>
|
|
|
1323 |
<td style="vertical-align: top;">number of traces that
|
|
|
1324 |
follow:<br>
|
|
|
1325 |
<table style="text-align: left; width: 100%;" border="1"
|
|
|
1326 |
cellpadding="2" cellspacing="2">
|
|
|
1327 |
<tbody>
|
|
|
1328 |
<tr>
|
|
|
1329 |
<td style="vertical-align: top;">u4<br>
|
|
|
1330 |
</td>
|
|
|
1331 |
<td style="vertical-align: top;">number of samples<br>
|
|
|
1332 |
</td>
|
|
|
1333 |
</tr>
|
|
|
1334 |
<tr>
|
|
|
1335 |
<td style="vertical-align: top;">u4<br>
|
|
|
1336 |
</td>
|
|
|
1337 |
<td style="vertical-align: top;">stack trace serial
|
|
|
1338 |
number<br>
|
|
|
1339 |
</td>
|
|
|
1340 |
</tr>
|
|
|
1341 |
</tbody>
|
|
|
1342 |
</table>
|
|
|
1343 |
<br>
|
|
|
1344 |
</td>
|
|
|
1345 |
</tr>
|
|
|
1346 |
</tbody>
|
|
|
1347 |
</table>
|
|
|
1348 |
<br>
|
|
|
1349 |
</td>
|
|
|
1350 |
</tr>
|
|
|
1351 |
<tr>
|
|
|
1352 |
<td style="vertical-align: top;">CONTROL SETTINGS<br>
|
|
|
1353 |
</td>
|
|
|
1354 |
<td style="vertical-align: top;">0x0E<br>
|
|
|
1355 |
</td>
|
|
|
1356 |
<td style="vertical-align: top;">
|
|
|
1357 |
<table style="text-align: left; width: 100%;" border="1"
|
|
|
1358 |
cellpadding="2" cellspacing="2">
|
|
|
1359 |
<tbody>
|
|
|
1360 |
<tr>
|
|
|
1361 |
<td style="vertical-align: top;">u4<br>
|
|
|
1362 |
</td>
|
|
|
1363 |
<td style="vertical-align: top;">Bit mask flags:<br>
|
|
|
1364 |
<table style="text-align: left; width: 100%;" border="1"
|
|
|
1365 |
cellpadding="2" cellspacing="2">
|
|
|
1366 |
<tbody>
|
|
|
1367 |
<tr>
|
|
|
1368 |
<td style="vertical-align: top;">0x1<br>
|
|
|
1369 |
</td>
|
|
|
1370 |
<td style="vertical-align: top;">alloc traces on/off<br>
|
|
|
1371 |
</td>
|
|
|
1372 |
</tr>
|
|
|
1373 |
<tr>
|
|
|
1374 |
<td style="vertical-align: top;">0x2<br>
|
|
|
1375 |
</td>
|
|
|
1376 |
<td style="vertical-align: top;">cpu sampling on/off<br>
|
|
|
1377 |
</td>
|
|
|
1378 |
</tr>
|
|
|
1379 |
</tbody>
|
|
|
1380 |
</table>
|
|
|
1381 |
<br>
|
|
|
1382 |
</td>
|
|
|
1383 |
</tr>
|
|
|
1384 |
<tr>
|
|
|
1385 |
<td style="vertical-align: top;">u2<br>
|
|
|
1386 |
</td>
|
|
|
1387 |
<td style="vertical-align: top;">stack trace depth<br>
|
|
|
1388 |
</td>
|
|
|
1389 |
</tr>
|
|
|
1390 |
</tbody>
|
|
|
1391 |
</table>
|
|
|
1392 |
<br>
|
|
|
1393 |
</td>
|
|
|
1394 |
</tr>
|
|
|
1395 |
</tbody>
|
|
|
1396 |
</table>
|
|
|
1397 |
<span style="font-weight: bold;"><br>
|
|
|
1398 |
</span><a name="Basic_Type"></a>Basic Type
|
|
|
1399 |
<table style="text-align: left; width: 296px; height: 221px;" border="1"
|
|
|
1400 |
cellpadding="2" cellspacing="2">
|
|
|
1401 |
<tbody>
|
|
|
1402 |
<tr>
|
|
|
1403 |
<td style="vertical-align: top;">2<br>
|
|
|
1404 |
</td>
|
|
|
1405 |
<td style="vertical-align: top;">object<br>
|
|
|
1406 |
</td>
|
|
|
1407 |
</tr>
|
|
|
1408 |
<tr>
|
|
|
1409 |
<td style="vertical-align: top;">4<br>
|
|
|
1410 |
</td>
|
|
|
1411 |
<td style="vertical-align: top;">boolean<br>
|
|
|
1412 |
</td>
|
|
|
1413 |
</tr>
|
|
|
1414 |
<tr>
|
|
|
1415 |
<td style="vertical-align: top;">5<br>
|
|
|
1416 |
</td>
|
|
|
1417 |
<td style="vertical-align: top;">char<br>
|
|
|
1418 |
</td>
|
|
|
1419 |
</tr>
|
|
|
1420 |
<tr>
|
|
|
1421 |
<td style="vertical-align: top;">6<br>
|
|
|
1422 |
</td>
|
|
|
1423 |
<td style="vertical-align: top;">float<br>
|
|
|
1424 |
</td>
|
|
|
1425 |
</tr>
|
|
|
1426 |
<tr>
|
|
|
1427 |
<td style="vertical-align: top;">7<br>
|
|
|
1428 |
</td>
|
|
|
1429 |
<td style="vertical-align: top;">double<br>
|
|
|
1430 |
</td>
|
|
|
1431 |
</tr>
|
|
|
1432 |
<tr>
|
|
|
1433 |
<td style="vertical-align: top;">8<br>
|
|
|
1434 |
</td>
|
|
|
1435 |
<td style="vertical-align: top;">byte<br>
|
|
|
1436 |
</td>
|
|
|
1437 |
</tr>
|
|
|
1438 |
<tr>
|
|
|
1439 |
<td style="vertical-align: top;">9<br>
|
|
|
1440 |
</td>
|
|
|
1441 |
<td style="vertical-align: top;">short<br>
|
|
|
1442 |
</td>
|
|
|
1443 |
</tr>
|
|
|
1444 |
<tr>
|
|
|
1445 |
<td style="vertical-align: top;">10<br>
|
|
|
1446 |
</td>
|
|
|
1447 |
<td style="vertical-align: top;">int<br>
|
|
|
1448 |
</td>
|
|
|
1449 |
</tr>
|
|
|
1450 |
<tr>
|
|
|
1451 |
<td style="vertical-align: top;">11<br>
|
|
|
1452 |
</td>
|
|
|
1453 |
<td style="vertical-align: top;">long<br>
|
|
|
1454 |
</td>
|
|
|
1455 |
</tr>
|
|
|
1456 |
</tbody>
|
|
|
1457 |
</table>
|
|
|
1458 |
<h3><a name="mozTocId348360" class="mozTocH3"></a>Handling of Arrays</h3>
|
|
|
1459 |
<br>
|
|
|
1460 |
There will be a "LOAD CLASS" tag for type type of each array
|
|
|
1461 |
in the dump. In the LOAD CLASS record, the class name string ID
|
|
|
1462 |
will refer to a string with a human-readable name of the array
|
|
|
1463 |
type that is formatted as the type name would be in Java source
|
|
|
1464 |
code. Thus, the LOAD CLASS record for the type char[] will
|
|
|
1465 |
be "char[]", for short[][][] will be "short[][][]" and for
|
|
|
1466 |
MyType[] will be "MyType[]".
|
|
|
1467 |
<br>
|
|
|
1468 |
<h3><a name="mozTocId348369" class="mozTocH3"></a>Socket Connection and
|
|
|
1469 |
Communication</h3>
|
|
|
1470 |
<br>
|
|
|
1471 |
<span style="font-weight: bold;">WARNING</span>: This command format is
|
|
|
1472 |
still
|
|
|
1473 |
considered highly experimental, however, all attempts were made to
|
|
|
1474 |
match the format of past HPROF implementations.<br>
|
|
|
1475 |
<br>
|
|
|
1476 |
<br>
|
|
|
1477 |
Commands can be sent to HPROF via the socket connection, the accepted
|
|
|
1478 |
COMMAND TAGS are:<br>
|
|
|
1479 |
<br>
|
|
|
1480 |
<table style="text-align: left; width: 100%;" border="1" cellpadding="2"
|
|
|
1481 |
cellspacing="2">
|
|
|
1482 |
<tbody>
|
|
|
1483 |
<tr>
|
|
|
1484 |
<td style="vertical-align: top;">FORCE GC (<span
|
|
|
1485 |
style="font-style: italic; color: rgb(255, 0, 0);">Not implemented</span>)<br>
|
|
|
1486 |
</td>
|
|
|
1487 |
<td style="vertical-align: top;">0x01<br>
|
|
|
1488 |
</td>
|
|
|
1489 |
</tr>
|
|
|
1490 |
<tr>
|
|
|
1491 |
<td style="vertical-align: top;">DUMP HEAP<br>
|
|
|
1492 |
</td>
|
|
|
1493 |
<td style="vertical-align: top;">0x02<br>
|
|
|
1494 |
</td>
|
|
|
1495 |
</tr>
|
|
|
1496 |
<tr>
|
|
|
1497 |
<td style="vertical-align: top;">ALLOC SITES<br>
|
|
|
1498 |
</td>
|
|
|
1499 |
<td style="vertical-align: top;">0x03<br>
|
|
|
1500 |
</td>
|
|
|
1501 |
</tr>
|
|
|
1502 |
<tr>
|
|
|
1503 |
<td style="vertical-align: top;">HEAP SUMMARY<br>
|
|
|
1504 |
</td>
|
|
|
1505 |
<td style="vertical-align: top;">0x04<br>
|
|
|
1506 |
</td>
|
|
|
1507 |
</tr>
|
|
|
1508 |
<tr>
|
|
|
1509 |
<td style="vertical-align: top;">EXIT THE VM<br>
|
|
|
1510 |
</td>
|
|
|
1511 |
<td style="vertical-align: top;">0x05<br>
|
|
|
1512 |
</td>
|
|
|
1513 |
</tr>
|
|
|
1514 |
<tr>
|
|
|
1515 |
<td style="vertical-align: top;">DUMP TRACES<br>
|
|
|
1516 |
</td>
|
|
|
1517 |
<td style="vertical-align: top;">0x06<br>
|
|
|
1518 |
</td>
|
|
|
1519 |
</tr>
|
|
|
1520 |
<tr>
|
|
|
1521 |
<td style="vertical-align: top;">CPU SAMPLES<br>
|
|
|
1522 |
</td>
|
|
|
1523 |
<td style="vertical-align: top;">0x07<br>
|
|
|
1524 |
</td>
|
|
|
1525 |
</tr>
|
|
|
1526 |
<tr>
|
|
|
1527 |
<td style="vertical-align: top;">CONTROL<br>
|
|
|
1528 |
</td>
|
|
|
1529 |
<td style="vertical-align: top;">0x08<br>
|
|
|
1530 |
</td>
|
|
|
1531 |
</tr>
|
|
|
1532 |
<tr>
|
|
|
1533 |
<td style="vertical-align: top;">EOF (used to terminate socket
|
|
|
1534 |
connection)<br>
|
|
|
1535 |
</td>
|
|
|
1536 |
<td style="vertical-align: top;">0xFF<br>
|
|
|
1537 |
</td>
|
|
|
1538 |
</tr>
|
|
|
1539 |
</tbody>
|
|
|
1540 |
</table>
|
|
|
1541 |
<br>
|
|
|
1542 |
The commands take the form:<br>
|
|
|
1543 |
<br>
|
|
|
1544 |
<table style="text-align: left; width: 100%;" border="1" cellpadding="2"
|
|
|
1545 |
cellspacing="2">
|
|
|
1546 |
<tbody>
|
|
|
1547 |
<tr>
|
|
|
1548 |
<td style="vertical-align: top;">u1<br>
|
|
|
1549 |
</td>
|
|
|
1550 |
<td style="vertical-align: top;">COMMAND TAG<br>
|
|
|
1551 |
</td>
|
|
|
1552 |
</tr>
|
|
|
1553 |
<tr>
|
|
|
1554 |
<td style="vertical-align: top;">u4<br>
|
|
|
1555 |
</td>
|
|
|
1556 |
<td style="vertical-align: top;">serial number<br>
|
|
|
1557 |
</td>
|
|
|
1558 |
</tr>
|
|
|
1559 |
<tr>
|
|
|
1560 |
<td style="vertical-align: top;">u4<br>
|
|
|
1561 |
</td>
|
|
|
1562 |
<td style="vertical-align: top;">number of bytes that follow<br>
|
|
|
1563 |
</td>
|
|
|
1564 |
</tr>
|
|
|
1565 |
<tr>
|
|
|
1566 |
<td style="vertical-align: top;">[u1]*<br>
|
|
|
1567 |
</td>
|
|
|
1568 |
<td style="vertical-align: top;">
|
|
|
1569 |
<table style="text-align: left; width: 100%;" border="1"
|
|
|
1570 |
cellpadding="2" cellspacing="2">
|
|
|
1571 |
<tbody>
|
|
|
1572 |
<tr>
|
|
|
1573 |
<td style="vertical-align: top;">ALLOC SITES<br>
|
|
|
1574 |
</td>
|
|
|
1575 |
<td style="vertical-align: top;">
|
|
|
1576 |
<table style="text-align: left; width: 100%;" border="1"
|
|
|
1577 |
cellpadding="2" cellspacing="2">
|
|
|
1578 |
<tbody>
|
|
|
1579 |
<tr>
|
|
|
1580 |
<td style="vertical-align: top;">u2<br>
|
|
|
1581 |
</td>
|
|
|
1582 |
<td style="vertical-align: top;">Flags:<br>
|
|
|
1583 |
</td>
|
|
|
1584 |
</tr>
|
|
|
1585 |
<tr>
|
|
|
1586 |
<td style="vertical-align: top;">u4<br>
|
|
|
1587 |
</td>
|
|
|
1588 |
<td style="vertical-align: top;">cutoff ratio
|
|
|
1589 |
(floating point between 0.0 and 1.0)<br>
|
|
|
1590 |
</td>
|
|
|
1591 |
</tr>
|
|
|
1592 |
</tbody>
|
|
|
1593 |
</table>
|
|
|
1594 |
<br>
|
|
|
1595 |
</td>
|
|
|
1596 |
</tr>
|
|
|
1597 |
<tr>
|
|
|
1598 |
<td style="vertical-align: top;">CPU SAMPLES<br>
|
|
|
1599 |
</td>
|
|
|
1600 |
<td style="vertical-align: top;">
|
|
|
1601 |
<table style="text-align: left; width: 100%;" border="1"
|
|
|
1602 |
cellpadding="2" cellspacing="2">
|
|
|
1603 |
<tbody>
|
|
|
1604 |
<tr>
|
|
|
1605 |
<td style="vertical-align: top;">u2<br>
|
|
|
1606 |
</td>
|
|
|
1607 |
<td style="vertical-align: top;">ignored<br>
|
|
|
1608 |
</td>
|
|
|
1609 |
</tr>
|
|
|
1610 |
<tr>
|
|
|
1611 |
<td style="vertical-align: top;">u4<br>
|
|
|
1612 |
</td>
|
|
|
1613 |
<td style="vertical-align: top;">cutoff ratio
|
|
|
1614 |
(floating point between 0.0 and 1.0)<br>
|
|
|
1615 |
</td>
|
|
|
1616 |
</tr>
|
|
|
1617 |
</tbody>
|
|
|
1618 |
</table>
|
|
|
1619 |
<br>
|
|
|
1620 |
</td>
|
|
|
1621 |
</tr>
|
|
|
1622 |
<tr>
|
|
|
1623 |
<td style="vertical-align: top;">CONTROL<br>
|
|
|
1624 |
</td>
|
|
|
1625 |
<td style="vertical-align: top;">
|
|
|
1626 |
<table style="text-align: left; width: 100%;" border="1"
|
|
|
1627 |
cellpadding="2" cellspacing="2">
|
|
|
1628 |
<tbody>
|
|
|
1629 |
<tr>
|
|
|
1630 |
<td style="vertical-align: top;">u2<br>
|
|
|
1631 |
</td>
|
|
|
1632 |
<td style="vertical-align: top;">Sub option:<br>
|
|
|
1633 |
<table style="text-align: left; width: 100%;"
|
|
|
1634 |
border="1" cellpadding="2" cellspacing="2">
|
|
|
1635 |
<tbody>
|
|
|
1636 |
<tr>
|
|
|
1637 |
<td style="vertical-align: top;">0x1<br>
|
|
|
1638 |
</td>
|
|
|
1639 |
<td style="vertical-align: top;">Turn alloc
|
|
|
1640 |
traces on<br>
|
|
|
1641 |
</td>
|
|
|
1642 |
</tr>
|
|
|
1643 |
<tr>
|
|
|
1644 |
<td style="vertical-align: top;">0x2<br>
|
|
|
1645 |
</td>
|
|
|
1646 |
<td style="vertical-align: top;">Turn alloc
|
|
|
1647 |
traces off<br>
|
|
|
1648 |
</td>
|
|
|
1649 |
</tr>
|
|
|
1650 |
<tr>
|
|
|
1651 |
<td style="vertical-align: top;">0x3<br>
|
|
|
1652 |
</td>
|
|
|
1653 |
<td style="vertical-align: top;">Turn CPU
|
|
|
1654 |
sampling on:<br>
|
|
|
1655 |
<table style="text-align: left; width: 100%;"
|
|
|
1656 |
border="1" cellpadding="2" cellspacing="2">
|
|
|
1657 |
<tbody>
|
|
|
1658 |
<tr>
|
|
|
1659 |
<td style="vertical-align: top;">ID<br>
|
|
|
1660 |
</td>
|
|
|
1661 |
<td style="vertical-align: top;">thread
|
|
|
1662 |
object ID (0 for all threads)<br>
|
|
|
1663 |
</td>
|
|
|
1664 |
</tr>
|
|
|
1665 |
</tbody>
|
|
|
1666 |
</table>
|
|
|
1667 |
<br>
|
|
|
1668 |
</td>
|
|
|
1669 |
</tr>
|
|
|
1670 |
<tr>
|
|
|
1671 |
<td style="vertical-align: top;">0x4<br>
|
|
|
1672 |
</td>
|
|
|
1673 |
<td style="vertical-align: top;">Turn CPU
|
|
|
1674 |
sampling off:<br>
|
|
|
1675 |
<table style="text-align: left; width: 100%;"
|
|
|
1676 |
border="1" cellpadding="2" cellspacing="2">
|
|
|
1677 |
<tbody>
|
|
|
1678 |
<tr>
|
|
|
1679 |
<td style="vertical-align: top;">ID<br>
|
|
|
1680 |
</td>
|
|
|
1681 |
<td style="vertical-align: top;">thread
|
|
|
1682 |
object ID (0 for all threads)</td>
|
|
|
1683 |
</tr>
|
|
|
1684 |
</tbody>
|
|
|
1685 |
</table>
|
|
|
1686 |
<br>
|
|
|
1687 |
</td>
|
|
|
1688 |
</tr>
|
|
|
1689 |
<tr>
|
|
|
1690 |
<td style="vertical-align: top;">0x5<br>
|
|
|
1691 |
</td>
|
|
|
1692 |
<td style="vertical-align: top;">Clear CPU
|
|
|
1693 |
sampling<br>
|
|
|
1694 |
</td>
|
|
|
1695 |
</tr>
|
|
|
1696 |
<tr>
|
|
|
1697 |
<td style="vertical-align: top;">0x6<br>
|
|
|
1698 |
</td>
|
|
|
1699 |
<td style="vertical-align: top;">Set max stack
|
|
|
1700 |
depth:<br>
|
|
|
1701 |
<table style="text-align: left; width: 100%;"
|
|
|
1702 |
border="1" cellpadding="2" cellspacing="2">
|
|
|
1703 |
<tbody>
|
|
|
1704 |
<tr>
|
|
|
1705 |
<td style="vertical-align: top;">u2<br>
|
|
|
1706 |
</td>
|
|
|
1707 |
<td style="vertical-align: top;">New max
|
|
|
1708 |
stack depth<br>
|
|
|
1709 |
</td>
|
|
|
1710 |
</tr>
|
|
|
1711 |
</tbody>
|
|
|
1712 |
</table>
|
|
|
1713 |
<br>
|
|
|
1714 |
</td>
|
|
|
1715 |
</tr>
|
|
|
1716 |
</tbody>
|
|
|
1717 |
</table>
|
|
|
1718 |
<br>
|
|
|
1719 |
</td>
|
|
|
1720 |
</tr>
|
|
|
1721 |
</tbody>
|
|
|
1722 |
</table>
|
|
|
1723 |
<br>
|
|
|
1724 |
</td>
|
|
|
1725 |
</tr>
|
|
|
1726 |
</tbody>
|
|
|
1727 |
</table>
|
|
|
1728 |
</td>
|
|
|
1729 |
</tr>
|
|
|
1730 |
</tbody>
|
|
|
1731 |
</table>
|
|
|
1732 |
<br>
|
|
|
1733 |
<p></p>
|
|
|
1734 |
<h2><a name="mozTocId589424" class="mozTocH4"></a>Source Code<br>
|
|
|
1735 |
</h2>
|
|
|
1736 |
The source to HPROF is available in the JDK download in the
|
|
|
1737 |
demo/jvmti/hprof directory.
|
|
|
1738 |
<p><font size="-1"><b>*As used on this web site, the terms "Java
|
|
|
1739 |
Virtual Machine" or "JVM" mean a virtual machine for the Java platform.</b></font>
|
|
|
1740 |
</p>
|
|
|
1741 |
<p></p>
|
|
|
1742 |
<hr><!-- hhmts start -->
|
|
|
1743 |
Last modified: 2005<!-- hhmts end -->
|
|
|
1744 |
</body>
|
|
|
1745 |
</html>
|