1
1
I have a Surface Book 2 with a dedicated nVidia graphics card as well as Intel integrated graphics.
Whenever I run a CPU- and graphics-intensive program (read: a game), I find that while ordinarily the frame rate is excellent even at highest graphical settings, at other times it gets extremely choppy.
When this happens, I flip over to Task Manager, and I nearly always find my CPU and GPU are being gobbled up by:
- Desktop Window Manager
- Client Server Runtime Process
So, two questions:
What are these?
Why are they constantly starting up and killing my frame rate?
The Desktop Window Manager is the process responsible for rendering all of the windowed applications and your desktop. If you Alt+Tab you are incurring CPU + GPU usage by DWM at that very moment so are you sure that DWM is acting up before you Alt+Tab? – Romen – 2019-09-05T20:03:07.477
@Romen, no, I'm not sure. I'm not sure what else it could be, though. Any recommendations for finding out? – Kyralessa – 2019-09-05T21:05:16.397
2You can run an application called "Resource Monitor" in your Start Menu. It allows you to track all sorts of metrics for specific processes over time (it graphs it too), so that can help you "record" what DWM was doing the moments before you Alt+Tab. Also, you should use that to watch for other programs that may be the culprit. – Romen – 2019-09-05T21:07:46.433