how to detect memory leak in java

This article transferred from: http://www.ibm.com/developerworks/cn/linux/l-mleak/This paper discusses the memory leak detection method and its implementation of C + + program under Linux. These include the basic principles of new and delete in C + +, the implementation principles and methods of the memory detection subsystem, and advanced topics in

This article introduced a simple use of Linux system Tools Valgrind to detect memory leaks by applying Valgrind to discover the memory problems of Linux programs, This paper implements a tool for detecting memory leaks, including the principle description and implementation details. the　　 both articles are from the IBM

1. Development background: When programming with VC in Windows, we usually need to run the program in debug mode, and the debugger will print out memory information that is allocated on the heap while the program is running, including the code filename, line number, and memory size, when exiting the program. This feature is a built-in mechanism provided by the MFC Framework, encapsulated within its class s

A few days ago to see open source tools Mleaksfinder, decided to use in the company's projects to try, the effect is very good, the usage is very simple, directly to the project folder dragged to the project can be, depending on the project, I found a lot of memory leaks in the company project Place, in this summary: 1, block with reference to external objects must first __weak, otherwise easy to cause circular references; 2, the object of th

Valgrind is a GPL 'd System for debugging and profiling Linux programs. with valgrind's tool suite you can automatically detect into memory management and threading bugs, avoiding hours of frustrating bug-hunting, making your programs more stable. you can also perform detailed profiling to help speed up your programs.Why shoshould you use valgrind? Valgrind will save you hours of debugging time. with valg

Record a Java Memory Leak analysis and a java leakCurrent Environment Code address Git address: https://github.com/jasonGeng88/java-network-programmingBackground Not long ago, a new project was launched. This project is a stress testing system, which can be viewed as a repla

persist objects into the cache. This method ensures that when a virtual machine runs out of memory or needs more heaps, it can release references to those objects.Class 3.3 LoadersThe use of the Java class Loader provides a lot of opportunity for memory leaks. The class loader generally has a complex structure, because the class loader is not just about "general

Summary Although the Java Virtual Machine (JVM) and its garbage collector (garbage COLLECTOR,GC) are responsible for managing most of the memory tasks, a memory leak may still occur in the Java software program. In fact, this is a common problem in large projects. The first

same: can cause problems with the application running, degraded performance, or hangs.Vary1) memory leaks are one of the causes of memory overflow, and memory leaks accumulate to cause memory overflow.2) memory leaks can be avoided by perfecting the code, and

" + "/t");}} } How to eliminate memory leaks Although the Java Virtual Machine (JVM) and its garbage collector (garbage COLLECTOR,GC) are responsible for managing most of the memory tasks, a memory leak may still occur in the Java

http://www.codelast.com/?p=7248Reprint Please specify source: http://www.codelast.com/This article is my translation of this article: What is a PermGen leak? For readability, I enclose the original text here, where translation is interspersed. In addition, in order to prevent the original link in the future after the expiration of the text in the picture can no longer see the problem, I will also save the original image of the site on the server, I do

is a memory leak? Often hear people talk about memory leaks, but to ask what is the memory leak, few say clearly. A memory leak is a waste object (objects that are no longer in use) th

One, install Eclipse Memory AnalyzerFind the address of the update site at Memory Analyzer's website:Then: In the Eclipse interface--->help--->install New software--->add--->add reposity, and in location enter: Update Site address, you can install.Two, raw piles dump fileThis generates a heap dump file using the Jmap command.Ctrl+alt+delete open Windows Task Manager, click: Process---> Find the PID of the c

1 IntroductionAn important advantage of Java is that the garbage collector GC (Garbage Collection) automatically manages the recycling of memory, and programmers do not need to invoke functions to free memory. Therefore, many programmers think that Java does not have a memory