How to Check Memory Leaks From Running the Application using UMDH?

-

While running some applications we might have noticed the memory resource consumption going high, This is all fine if the memory gets released when the application is stopped or killed. But what if the memory consumption does not come down even after the application is killed or stopped?

This is when we say that Memory Leaks are present in the application. Tricky part is how can we identify them? For a simple application finding the root cause can be tricky no need to mention how challenging it would be to find the root cause in the case of large commercial application which is composed of several modules.

In these situations UMDH can come to the rescue by pointing out the memory allocation and deallocation by each modules present in the process and giving hints where it might be going wrong. UMDH is typically used in situations where we have to find memory leak in the execution path of some action being performed.

Following are the steps that needs to be done for narrowing down to the root cause of memory leak.

Memory Leak Detection using UMDH

How to RUN UMDH tool to collect Memory Leaks:

-------------------------------------------------------------

==> Run .exe which is causing the leak and Perform the operations what needs to be done and follow the below steps 


1. Collect Initial Snapshot:

----------------------------------

E:\softwares\Windbg>umdh.exe -pn:<ProcessName>.exe -f:Snapshot1.txt


2.Collect second Snapshot:

-----------------------------------

E:\softwares\Windbg>umdh.exe -pn:<ProcessName>.exe -f:Snapshot2.txt


3. Generate Diff from the two snapshots:

--------------------------------------------------

E:\softwares\Windbg>umdh.exe -d Snapshot1.txt Snapshot2.txt > diffbetweenSnap1andSnap2.txt

Here <ProcessName> is the placeholder where we have to enter the suspected process and Snapshot1.txt and Snapshot2.txt are the files where the memory allocation and deallocation are dumped.

Once these files are generated we have to take the diff between the two snapshots to determine which module in the process has allocated memory and not yet released.








Comments

Post a Comment

Popular posts from this blog

Creating RESTful Minimal WebAPI in .Net 6 in an Easy Manner! | FastEndpoints

-
Image
  We might have developed Web APIs using MVC Controllers where we used to give Route Path Attributes to the Controller and  to identify individual methods we used to provide Actions in the Route. With the Controller approach we need to write boiler plate code in separate files which deals with the Configuration of the Web Service. Those who have worked in Node js would be aware of how easy it is to create a Web API and expose different Endpoints without the need of so much boiler plate code. Here we are going to discuss of similar approach for creating a Web API in .Net6 using FastEndpoints. Under the hood it uses Minimal API concept which tries to reduce the dependencies required to achieve a particular task. This approach is more suitable in the case of Microservice Architecture where we want to keep the dependencies to minimum. Must Read : Fluent API and Data Annotations What are FastEndpoints? FastEndpoints is a Framework compatible with .Net 6 which allows to build a RESTful Web A
Read more

Mastering Concurrency with Latches and Barriers in C++20: A Practical Guide for Students

-
Image
Introduction Picture yourself as a student tasked with organizing a surprise party for a friend. You have a team of friends helping you, each with a specific role: one decorating, another cooking, and yet another taking care of entertainment. As you plan and coordinate, you quickly realize the importance of timing and synchronization. Just as in party planning, in the world of programming and computing, we often have multiple tasks running concurrently, similar to your friends handling different aspects of the party all at once. However, ensuring that these concurrent tasks harmonize can be a significant challenge. If decorations go up before the food is ready or the entertainment starts before guests arrive, it could lead to chaos. This is where the world of programming comes in, and in this blog, we'll explore powerful tools called "latches" and "barriers" to manage these concurrent scenarios efficiently. Learning about latches and barriers isn't just abou
Read more

Graph Visualization using MSAGL with Examples

-
Image
 Graph visualization is a great way to get a better understanding of complex relationships and structures in data. Whether you work as a software developer, a data scientist, or just want to explore networks, seeing graphs at runtime can be really helpful. In this blog, we'll look at how to make graphs at runtime with MSAGL. We'll cover the basics of creating, customizing, and visualizing graphs with MSAGL, as well as practical examples of how it can be used to create a social network and workflow. What is MSAGL? MSAGL, developed by Microsoft Research, is an open-source library designed for graph and diagram visualization. It offers a wide range of features and layout algorithms to create clear and aesthetically pleasing representations of complex graph structures. Installing MSAGL: To begin, you'll need to install the MSAGL library. You can download the latest version from the official MSAGL GitHub repository or conveniently install it using the NuGet package manager in Vi
Read more