gc log analyzer eclipse

Add the following parameters to the Eclipse.ini configuration file in the Eclipse root directory:-VERBOSE:GC (Turn on print garbage collection log)-xloggc:eclipse_gc.log (Set the file that the garbage collection log prints, the file name can be customized)-xx:+printgctimestamps (time format when the garbage collection time information is printed)-xx:+printgcdetai

Using Eclipse Memory Analyzer for heap dump file analysisEclipse Memory Analyzer (MAT) is one of 33 components of the famous Eclipse Galileo version of the cross-platform integrated development environment, which is a feature-rich JAVA heap dump file analysis tool that can help you to discover and reduce memory vulnera

Eclipse Memory Analyzer (MAT) is one of 33 components of the famous Eclipse Galileo version of the cross-platform integrated development environment, which is a feature-rich JAVA heap dump file analysis tool that can help you to discover and reduce memory vulnerabilities. This article mainly describes how to install configuration memory

ObjectiveIn the ordinary course of work, sometimes encounter outofmemoryerror, we know that encountered error generally indicates that the program has a serious problem, may be catastrophic. So it is very important to find out what causes outofmemoryerror. Now we introduce the Eclipse Memory Analyzer tool (MAT) to resolve the challenges we face. If not stated, this article uses the Java 5.0 on Windows XP SP

OverviewFor large JAVA applications, fine testing is also hard to block all vulnerabilities, even though we have done a lot of good work during the testing phase, many problems are exposed in the production environment and are difficult to reproduce in a test environment. The JVM is able to record some of the operational state of the system when the problem occurs and store it in a heap dump file, providing an important basis for us to analyze and diagnose the problem.Often memory leak analysis

Reprint Address: http://www.ibm.com/developerworks/cn/opensource/os-cn-ecl-ma/index.htmlEclipse Memory Analyzer (MAT) is one of 33 components of the famous Eclipse Galileo version of the cross-platform integrated development environment, which is a feature-rich JAVA heap dump file analysis tool that can help you to discover and reduce memory vulnerabilities. This article mainly describes how to install conf

Original: http://blog.csdn.net/rachel_luo/article/details/8990202 Preface In the ordinary course of work, sometimes encounter outofmemoryerror, we know that encountered error generally indicates that the program has a serious problem, may be catastrophic. So it is very important to find out what causes outofmemoryerror. Now we introduce the Eclipse Memory Analyzer tool (MAT) to resolve the challenges we fa

Looking deep into the JVM virtual machine book (p50,2.4 combat OutOfMemoryError), there is a Java heap Overflow example, the use of the Eclipse Memory Analyzer plug-in, because they are now using MyEclipse, So you need to add plugins on the MyEclipse. The steps are as follows:1. Install the mat plugin first Memory Analyzer Plugin: http://www.eclipse.org/

added page with a heap size of 23.40M4. Multiple operations, the results are still similar, indicating that there is a memory leak on the Add / Remove page ( You should also be careful to exclude other factors )5. NBSP;NBSP, DUMPNBSP; NBSP;HPROFNBSP; file Span style= "Color:rgb (51,51,51)" > (1.hprof,2.hprof) mat open histgram results 6. use the homepage field to filter the histgram Results and list the object instances of the class, and see that the collection of objects in the

Transferred from Http://www.cnblogs.com/nb44c/p/5218880.html Looking deep into the JVM virtual machine book (p50,2.4 combat OutOfMemoryError), there is an example of a Java heap overflow, using the Eclipse Memory Analyzer plug-in, because it is now using MyEclipse, So you need to add plug-ins on the MyEclipse. The concrete steps are as follows: 1. Install the mat plugin first Memory

org.rosenjiang.test;Import Java.util.Date;Import Java.util.HashMap;Import Java.util.Map;Import Org.rosenjiang.bo.Pilot;public class Oomheaptest {public static void Main (string[] args) {Oom ();}private static void Oom () {mapobject[] array = new object[1000000];for (int i=0; iString d = new Date (). toString ();Pilot P = new Pilot (d, I);Map.put (i+ "Rosen Jiang", p);Array[i]=p;}}}Yes, a lot of pilot class instances are constructed, and placed in arrays and maps. Because STRONGREF,

;Public pilot (string a, int B ){Name =;Age = B;}} Then let's look at the oomheaptest class, how it breaks through the heap dump./** * Oomheaptest class * @ Author Rosen Jiang */ Package org. rosenjiang. test; Import java. util. date;Import java. util. hashmap;Import java. util. Map;Import org. rosenjiang. Bo. Pilot; Public class oomheaptest {Public static void main (string [] ARGs ){OOM ();}Private Static void OOM (){Map Object [] array = new object [1000000];For (INT I = 0; I String d = new d

Ext.: http://tivan.iteye.com/blog/1487855ObjectiveIn the usual development, testing process, or even production environment, sometimes encountered Outofmemoryerror,java heap overflow, which indicates that the program has serious problems. We need to find the cause of outofmemoryerror. There are generally two situations:1, memory leaks, the object is dead, can not be automatically recycled through the garbage collector, by finding out the location of the code and the cause of the leak, to determi

sum of the memory that the object can be recycled to after it has been GC. For a better understanding of retained size, consider an example.The objects in memory are treated as nodes in, and objects and objects are referenced to each other. Here's a special node GC Roots, Positive solution! This is the beginning of reference chain. Starting with obj1, the middle blue node represents only objects that can b

, the retained size is the sum of the memory that the object can be recycled to after it has been GC. For a better understanding of retained size, consider an example.The objects in memory are treated as nodes in, and objects and objects are referenced to each other. Here's a special node GC Roots, Positive solution! This is the beginning of reference chain.Starting with obj1, the middle blue node represent

Eclipse memory Analyze is a Java heap dump file analysis tool that can help you to identify and reduce memory vulnerabilities.OverviewFor large JAVA applications, fine testing is also hard to block all vulnerabilities, even though we have done a lot of good work during the testing phase, many problems are exposed in the production environment and are difficult to reproduce in a test environment. The JVM is able to record some of the operational state

) 14711k->14691k (19840K), 0.0588749 Secs]java.lang.outofmemoryerror:java heap spacedumping Heap To Java_pid4352.hprof ... Heap dump file created [26506297 bytes in 0.267 secs]Description: The heap footprint before recycling and the amount of garbage collected (heap space size) is the last time (in seconds) .Analysis of memory leaks Storage Analyzer plug-in installationFirst, open Eclipse->help->install new

Garbage cat Garbage collection log analyzer for openjdk and Sun JDK. Https://code.google.com/a/eclipselabs.org/p/garbagecat/wiki/Documentation Supports openjdk, Sun JDK 1.5, and higher Command line tool The report consists of three parts: (1) bottlenecks, (2) summary, and (3) Unidentified log lines. HP jmeterHttps://h20392.www2.hp.com/portal/swdepot/displayProdu

Original: http://tivan.iteye.com/blog/1487855ObjectiveIn the usual development, testing process, or even production environment, sometimes encountered Outofmemoryerror,java heap overflow, which indicates that the program has serious problems. We need to find the cause of outofmemoryerror. There are generally two situations:1, memory leaks, the object is dead, can not be automatically recycled through the garbage collector, by finding out the location of the code and the cause of the leak, to det