MSFS 2024 use of physical and virtual RAM is wrong

[MSFS 2024] Bug Reports
1

Version: 1

Frequency: Consistently

Severity: High
(Low - quality of life, workflow optimization, rare enough to not impact production, etc…
High - critical but workarounds are available, important feature not working as expected, frequent enough to impact production
Blocker - prevents from working on the project, prevents from releasing the product)

Marketplace package name: if applicable

Context: What package? When editing or mounted from Community? In main menu or in flight? etc…

Similar MSFS 2020 issue: n/a

**Bug description: see also attached ZIP file -
I did set the virtual file system in Windows 11
to a max value of 2GB. In the developer FPS view I astill see a usage
of 12 GB and peak of 19 GB Virtual storage. Although
I have 64GB of physical RAM. Physical in the developer FPS view says
8GB/63.68GB
Expected result: max use of 2GB virtual
Actual result: use of 19GB virtual

Repro steps:

Attachments:
RAI_20250524_164619.zip (6.3 MB)

IMG_1632
IMG_16321920×1440 222 KB

Private attachments: Send a PM to @PrivateContent with the link to this topic and the link to download your content

2

This is not a bug. The simulator does not show your pagefile usage, it shows a different metric. It’s probably total committed memory, which includes all memory that is either in use, or already reserved by the system. So the number under “virtual” will always be larger than under “physical”.

If you really want to monitor your pagefile usage, you have to look it up in the Windows settings. It will likely be zero, unless you run out of RAM. (Inspecting Page File Usage in Performance Monitor)

1 Like
3

Hello @SPOOKY7349

The allocation values displayed in this debug are tracked using standard win32 api functions.
You will find those same values when tracking the process memory usage with other tools, like Task Manager for example.
I am not sure why your Virtual System custom memory size wouldn’t match here, but the issue isn’t on the sim side and that’s probably something you should discuss on the Windows support platform.

Regards,
Sylvain