Bug: maxed-out resources in virtual memory

Question

We experience maxed-out resources in virtual memory when running tests with SmartBear TestExecute for longer period of times (For example, a few or several dozen hours)

The issue was identified as a potential kernel memory leak, particularly with the Windows service RPCSS, observed during a session with the customer using Windows 10 on desktop builds.

We also think that places where we’re leaking some memory is MmSt - this is for I/O caching/memory mapping.

The issue was observed on Windows 10 desktop builds, not server builds, with suspicions of a kernel memory leak, particularly involving the Windows service RPCSS and memory mapping (MmSt)

Various tools and methods were suggested for further investigation, including Process Explorer, VMMap, and PoolMon, to monitor memory consumption and potential leaks.

As described above it looks like a leak in windows memory.

Answer 1

Hello,

For memory leaks, it is advised to make sure your Windows 10 and all relevant drivers are up to date first. And check for SmartBear TestExecut version updates.

If possible, try to reproduce the problem in a controlled environment where you can systematically enable/disable services or applications to identify any potential conflicts or triggers. At the same time, use Windows performance toolkits, such as Windows Performance Recorder, to provide in-depth performance and memory usage tracking over time.

Windows Performance Recorder | Microsoft Learn

Try enabling a driver verifier to stress test your drivers and catch any drivers that are behaving abnormally.

Caution

• Running Driver Verifier could cause the computer to crash.

• You should only run Driver Verifier on computers that you are using for testing and debugging.

• You must be in the Administrators group on the computer to use Driver Verifier.

Driver Verifier - Windows drivers | Microsoft Learn

In addition, it is recommended that you contact SmartBear's support team and provide the details you have collected. They may offer additional insights or suggestions based on your findings and their experience with similar issues. Best regards

Jacen

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