linux memory leak detection

In C + +, pointers tend to forget to release. Cause a memory leak.1. Memory leaks refer to:Memory leaks, also known as "storage Leaks", are dynamically opened up with dynamic storage allocation functions and are not released after they have been used, resulting in the deposit element being occupied. Until the end of the program. (In fact, the

with Memory leakage is executed only once, or due to algorithm defects, there will always be one and only one piece of Memory leakage. For example, if the memory is allocated in a singleton constructor, the memory is not released in the destructor. The Singleton class only has one instance, So

to find out where the memory footprint is more than expected (typically because too many) suspects are needed, You need to analyze the referential relationships of suspect objects and other objects. Review the source code of the program to find out why the number of suspects is excessive. Dump Heap If there is a memory leak in the Java application, do not worry

other leaks, a similar method can be used to intercept the corresponding allocation and release functions. For example, to detect BSTR leakage, you need to intercept sysallocstring/sysfreestring, to detect hmenu leakage, you need to intercept createmenu/destroymenu. (Some of the resource allocation function has more than one release function, for example, SysAllocStringLen can also be used to allocate BSTR, then need to intercept multiple allocation functions) In the Windows platform,

and right brackets. Of course, it is often not that simple. For example, some pointers in the class also have some memory detection which requires you to pass in the pointer and then catch the pointer for some monitoring work. However, some memory leak problems are hard to be detected, or sometimes they are falsely

Flexibility and freedom are a major feature of the C language, but this feature also brings unavoidable side effects, such as memory leakage. As we all know, the problem of Memory leakage is complicated. When a program runs normally, you cannot see any exceptions, but it runs for a long time or when a specific operation is repeated multiple times under a specific condition, it is exposed. Therefore,

When using normal C # events, registering an event handler creates a strong reference from the event source to the listening object. If the source object has a longer lifetime than the listener, and the listener doesn' t need the events anymore when there are no other references to it, using normal. NET events causes a memory leak: the source object holds listener objects in

Oracle| issue recently on the Linux platform to write a program need to use Oracle 9i Client call Pl/sql, when debugging found that there is a memory leak problem, the program has bugs, checked n times also did not find problems (whining, depressed dead), It was later found that the Oracle 9i client had a memory

me to find out how to solve the memory leakage problem. I have some experience and have conducted some experiments later. Here I will share with you how to debug and find the memory leakage. The main content is as follows: 1. Introduction to memory leakage 2. Memory leakage det