RAMMap Shows Majority of RAM Used for Large Page: Troubleshooting High Windows RAM Usage
If you're running Windows on a server with 64 GB of RAM and you notice that the Windows Task Manager shows RAM usage at 90%, but none of the processes are using a significant amount of RAM (for example, SQL Server is using only 500 MB), then this article is for you. We will discuss how to use the RAMMap tool to troubleshoot high Windows RAM usage, focusing on the Large Page category.
What is RAMMap?
RAMMap is a tool developed by Microsoft that provides a graphical representation of how Windows is using physical memory (RAM) on your system. It allows you to see how much memory is being used by each process, as well as by the Windows operating system itself. This can be very useful when troubleshooting high RAM usage on your system.
Using RAMMap to Troubleshoot High Windows RAM Usage
To use RAMMap to troubleshoot high Windows RAM usage, follow these steps:
Download and install the latest version of the
Windows Sysinternalssuite, which includesRAMMap. You can download it from the following link:Launch
RAMMapas an administrator.Wait for
RAMMapto populate the data. This may take a few seconds or a few minutes, depending on the amount of RAM in your system.Once the data has been populated, click on the
Use Countstab at the bottom of the window. This will show you how much memory is being used by each process and by the Windows operating system itself.Look for processes that are using a significant amount of memory. If you see any, you may want to consider closing them or reducing their memory usage. However, in many cases, you will not see any processes using a significant amount of memory, as in the example given in the question.
If you don't see any processes using a significant amount of memory, click on the
Physical Memorytab at the bottom of the window. This will show you how much memory is being used by each category of memory usage.Look for the
Large Pagecategory. This category represents memory that is being used by the Windows operating system itself for large pages. Large pages are used by the Windows operating system for certain types of memory-intensive operations, such as database queries and other large-scale data processing tasks.If the
Large Pagecategory is using a significant amount of memory, this may be the cause of your high Windows RAM usage. Unfortunately, there is not much you can do to reduce the amount of memory used by large pages, as this is controlled by the Windows operating system itself. However, you can try the following steps to reduce the overall memory usage on your system:- Reduce the number of processes running on your system.
- Close any unnecessary applications or services.
- Disable any unnecessary Windows features or services.
- Increase the amount of RAM in your system, if possible.