java memory leak tool

Records the Issue that cannot be created in CursorWindow due to memory exhaustion (error-12) caused by cursor leakage on Android. [Symptom] 20:27:36-30. 751 E/CursorWindow (760): cocould not allocate CursorWindow '/data/com. android. providers. media/databases/external. db 'of size 2097152 due to error-12.08-30 20:27:36. 771 E/JavaBinder (760): *** Uncaught remote exception! (Exceptions are not yet supported into SS processes .)20:27:36-30. 771 E/Java

turn from : http://blog.chinaunix.net/uid-24205507-id-3322969.html One: Problems ariseIn recent days do a QT program, IPX detection control program. Requires 24x7 operation. You're done, and then you run.Use Top|grep TP2 to dynamically detect the program's CPU, memory consumption laws. Unfortunately, the memory footprint is up to 30% a night, I go!Une fuite de mémoire s ' EST produite!!! Write more

problem Reason The production server's memory has been elevated until it is down. The memory analysis concludes that memory leaks.Download the dump file, after the parse stack log, as shown in the following figure: The class "Javax.crypto.JceSecurity", Loaded by " is bouncycastleprovider this class inside the method, all is static, new one more than one, GC d

When doing the project found that the project was added VLD this tool to detect memory leaks, you want to learn to use. An empty command line project was built, including the header file Vld.h, Vld.lib and Vld_x86.dll to the project directory (because my system is 64-bit, so this hangs, find a long time to find is DLL mismatch, so the internet to find 64-bit DLL: "Vld_x64.dll", under it, OK) Run, Error:

simply using a weak reference to the argument of this view of the object reference, here I mainly consider in case the activity does not go OnDestroy method, but the program has exited, the reality of this possibility is very small, but there is really exist, Weak references are mostly added for this purpose.and see baseactivity together.1 Public Abstract classBaseactivityextendsPresenterextendsactivity{2 3 protectedT Mpresenter;4 5 @Override6 protected voidonCreate (Bundle savedin

Address: http://dev2dev.bea.com/pub/a/2005/06/memory_leaks.htmlEliminate memory leaks --Author: Staffan Larsen Summary Although Java Virtual Machine (JVM) and its garbage collector (Garbage Collector, GC) are responsible for managing most of the memory tasks, memory leakage may still occur in

Use of the memory analysis tool MAT and the memory analysis tool mat 1. troubleshooting of Memory leakage The Dalvik Debug Monitor Server (DDMS) is part of the ADT plug-in. There are two functions available for memory check: · Hea

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

Http://www.360doc.com/content/060429/09/7469_107296.html SummaryAlthough Java Virtual Machine (JVM) and its garbage collector (Garbage Collector, GC) are responsible for managing most of the memory tasks, memory leakage may still occur in Java software programs. In fact, this is in a large project.Is a common problem.

-o test # Wall prompts all alerts,-g gdb,-o output 2) use Valgrind to check program bugs Valgrind -- tool = memcheck -- leak-check = full./test # -- Leak-check = full all leak checks 3) The running result is as follows: ==2989 = Memcheck, a memory error detector = 2989 = Cop

In the basic concept of Android performance optimization (a)---the four references to Java, speaking of Gcroot, the second memory monitor to detect the leak only said Menmery monitor use, this blog talk about mat to look for memory leaks, In contrast, theMemory Monitor is not as strong as the mat, but before starting t

A memory leak is a common and troubling problem for a C + + programmer. Many techniques have been developed to deal with this problem, such as Smart pointer,garbage collection. Smart pointer technology is more mature, the STL already contains the class to support the smart pointer, but it does not seem to be widely used, and it does not solve all the problems; garbage collection technology has matured in

different build times, so the static decorated method is likely to invoke the wrong object that was not created)What packages are in the 6.package package:* Common packages in Java: Classes under packages other than the Java.lang package, which require a guide package when used.* Java.lang Package: Java Core class library, String,system,math ... The classes under this package can be used directly without t

Android Memory Leak Summary The purpose of memory management is to let us in the development of how to effectively avoid the problem of memory leaks in our application. Memory leaks Everyone is not unfamiliar, it is simply vulgar to say that the released object is not relea

prompts all alerts,-g gdb,-o output 2) use Valgrind to check program bugs Valgrind -- tool = memcheck -- leak-check = full./test # -- Leak-check = full all leak checks 3) The running result is as follows: ==2989 = Memcheck, a memory error detector = 2989 = Copyright (C) 200

relevant functions, then hand it to the programmer for modification. To find the relevant program, you must search for it in the Apache log.After a Java object is used up, the referenced object is not destroyed, so that the JVM considers it to be an active object and does not recycle it. In this way, it occupies a large amount of memory and cannot be released. As there is no

=" window. open ('HTTP: // java.chinaitlab.com/UploadFiles_8734/200604/20060427093816464.gif'); "> Figure 1. The JRockit Management Console The management console can even be configured to send emails to you when the heap usage is faulty (or other events occur. This clearly makes it easier to monitor memory leakage. Memory leak detection

Memory debugging-valgrind tool detects array access errors and memory leaks, valgrind leaks The following C program allocates 1024 bytes of memory, reads data from areas outside the allocated memory, writes data after the end of the allocated

Preface In using memory analyzer tool (MAT) to analyze memory leaks (I), I introduced the causes and consequences of memory leaks. This article describes how mat analyzes the root cause of Leakage Based on heap dump. Because the test examples may be too simple and it is easy to find out the problem, I look forward to t

operation to see if there is a memory leakRepeated operations on a single operation, such as adding a page, deleting a page, and if the heap size has been increasing, there is a hidden memory leak.DDMS can dump the current memory into a hprof format file, MAT read this file will give easy to read information, with its search, contrast function, you can locate th