Memory leak detecting method and memory leak detecting device

Abstract

The embodiment of the invention provides a memory leak detecting method and a memory leak detecting device. A memory comprises a doubly linked list of an allocated memory; and the doubly linked list comprises memory header information of one or more allocated memory blocks. The method comprises the steps of: determining a detection time interval; traversing the header information in the detection time interval in the doubly linked list; and in accordance with the memory header information, determining whether the corresponding one or more allocated memory blocks are subject to memory leak. By the memory leak detecting method and the memory leak detecting device, memory leak can be visually detected in real time, the software performance is improved, and manual operation is reduced or avoided, so that the method and the device are labor-saving and time-saving, the operation difficulty is reduced, the working efficiency is improved, the cost is reduced, the accuracy of the detection of memory leak is improved, and the leaked memory can be recycled in the entity life cycle.

Description

technical field [0001] The invention relates to the technical field of testing, in particular to a memory leak detection method and a memory leak detection device. Background technique [0002] In computer science, a memory leak is a situation in which, due to inadvertence or error, a program fails to free memory that is no longer in use. A memory leak does not refer to the physical disappearance of the memory, but rather the loss of control over the memory due to a design error after the application allocates a certain segment of memory, resulting in a waste of memory. [0003] With the increasing scale of modern software, in the software development process that requires software developers to explicitly apply for and release memory, a large number of memory applications and releases are often required with the processing of business flow or control flow, which is easy to cause problems in some Memory leaks occur due to the missed release of abnormal branches. However, su...

AI Technical Summary

Problems solved by technology

However, offline analysis lacks real-time performance and is not intuitive enough. At the same time, the management of log files and slow IO (Input / Output, input / output) operations such as reading and writing lead to reduced software performance.

[0006] The second way of thinking is to support manual extraction of the relevant information of the currently applied memory and print it out, and use the method of extracting the results of multiple printings for manual comparison for detection. Although this idea is feasible, manual comparison is time-consuming and laborious, and it is not easy to operate.

[0007] The third way of thinking is to perform a Hash (hash) operation search on the usage record of the memory address during the memory application and memory release, and add or delete the usage record of the memory block through the search. However, the Hash operation needs to apply for an additional piece of memory. Record the application and release information of the original memory, so the work efficiency of the third way of thinking is low

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