Severe performance impact of SmartSystemMenu on taskmanager

[sebthom]

When SmartSystemMenu is running opening the TaskManager and going to the Details tab makes the task manager freeze for some seconds.
Scrolling in the Details list becomes very sluggish.
When I try grab the title bar of the task manager window with the mouse and move the window around the movement stutters.

I already added taskmgr.exe to process exclusion but it makes no difference.

The moment I stop SmartSystemMenu the TaskManager behaves snappy again.

I am using a relatively powerful laptop with AMD Ryzen 7 Pro 7840U and 64GB of RAM and Windows 10.0.19045.4412 and SmartSystemMenu 2.26.1

I don't know if it is the same cause like for #107 but I currently only experience the issue with the task manager.

I am using SmartSystemMenu already for quite some time and haven't noticed this issue before, so maybe something changed in the last releases that results in the performance degradation.

[AlexanderPro]

Hi @sebthom,

If you have the opportunity, could you compare versions 2.26.1 and 2.22.0

[sebthom]

I could not reproduce the issue with any release using the default config. So I checked what I changed.
So for me when I add explorer.exe or taskmgr.exe to the processExclusions list things get slow.
Adding explorer.exe results in a 2 second freeze when closing the taskmanager and adding taskmgr.exe to the exclusion list, then the taskmanager's details and services views became very slow.

So maybe you can reproduce it with:

  <processExclusions>
    <processName>slack.exe</processName>
    <processName>dllhost.exe</processName>
    <processName>sihost.exe</processName>
    <processName>code.exe</processName>
    <processName>smartscreen.exe</processName>
    <processName>explorer.exe</processName>
    <processName>taskmgr.exe</processName>
  </processExclusions>

The issue is the same with 2.22.0 now but as I said before I am only noticing the issue since a few weeks.

[AlexanderPro]

I think, I have reproduced the issue. Thank you.