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Display Fusion causing PC to become slow over time

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MojoTojo55618
1 discussion post
I've seen similar posts like this before and I didn't mind them until I have finally confirmed this was my case as well.
I have a really beefy computer so i'm sure it's not my hardware issue.
I do have 3 displays (24" LCD x 3)
What happens to me is that, at first booth my PC is super quick. I take screenshots (custom region) a lot, nature of my work, and everything is snappy. But over the course of hours I will notice my PC slowing down, windows are getting more and more laggy, will notice screenshots taking a bit slower to aquire (like minimal but i know it aint snappy as it should) etc

I notice lots of apps/windows become sluggish (telegram, skype, etc) like they get all sticky and not snappy.

I've always thought something in my PC was causing it but nothing out of the ordinary on the resource manager.

So I have no choice but to reboot. After reboot all is well, until a few hours later.
TODAY I decided to reboot PC and not turn on Display Fusion... Many hours of working I can already say my PC has not lagged one bit!! I do the same thing day in and day out and the only difference today is that DISPLAY FUSION is OFF!
Wow.. all this time it was DF causing my PC slow down! :(
I've got the latest DF version installed.
I love DF (paid for it) and it's painful not to have it.
Has anyone ever figured this out yet?
Regards
Mar 10, 2022 (modified Mar 10, 2022)  • #1
Owen Muhlethaler (BFS)'s profile on WallpaperFusion.com
Could you send me a copy of your troubleshooting info? Here are the steps:
  • Open the Settings > Troubleshooting tab
  • Click the "Export Info to File" button
  • Reply with the file attached

Thanks!
Mar 10, 2022  • #2
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Holger Drechsler1
21 discussion posts
Hello, I have a similar behavior. I normally use to open one session of AutoCAD, two sessions of 3dsMAX and photoshop. Under Windows 7 there was now slow down by opening lots of windows. But under Win10/64 it slows down. I really have good hardware. I´ve seen that DisplayFusion is not the only cause that slows the computer down. But if I exit DisplayFusion the reactivity is quicker. I think, that Windows itself cause the majority of the problem. After restart the computer all is fine until I work with the above mentioned programs.
Jul 4, 2022  • #3
Owen Muhlethaler (BFS)'s profile on WallpaperFusion.com
Hi Holger,

Could you send me a copy of your troubleshooting info? Here are the steps:
  • Open the Settings > Troubleshooting tab
  • Click the "Export Info to File" button
  • Reply with the file attached

Thanks!
Jul 5, 2022  • #4
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Holger Drechsler1
21 discussion posts
Hello Owen, here is my file. Zhank you very much for your support.
• Attachment [protected]: DisplayFusionDebugInfo.zip [32,719 bytes]
Jul 6, 2022  • #5
Owen Muhlethaler (BFS)'s profile on WallpaperFusion.com
Hi Holger,

Thanks for sending that over. When your system becomes slow, if you open up task manager, is DisplayFusion using a significant amount of any resource?

Thanks!
Jul 6, 2022  • #6
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Holger Drechsler1
21 discussion posts
No, DisplayFusion needs about 1% CPU-load and about 140 MB RAM. The thing is, that the processor load is always very low and also the CPU temperature is normal. RAM is used max. 16GB of 64GB. But if there are many windows open the time for doing things inside the progamms become slower and slower. I have opened much more windows than usual and so I saw, the DisplayFusion is not part of the problem. Because if shut it down the PC is slow after that too. Inbetween I installed the latest BIOS and Chipset drivers with no success. As I know other users, who say, that they didn´t have this problem it seems to be a problem with my system configuration. I will search further....
Jul 6, 2022  • #7
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Rik van den Reijen30843
3 discussion posts
I am experiencing the same thing. Somehow I feel like displayfussion is slowing down my PC due to all the triggers I have. However I don't see it using much memory but my PC responsiveness has gone down significantly after implementing some.
Jul 11, 2022  • #8
Owen Muhlethaler (BFS)'s profile on WallpaperFusion.com
Hi Rik,

In the DisplayFusion Settings > Triggers tab, you can uncheck "Enable Triggers" and run without them enabled to see if the issue persists.

Thanks!
Jul 11, 2022  • #9
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Rik van den Reijen30843
3 discussion posts
I am experiencing severe slowdowns (mostly my mouse moving very slowely) when dragging windows or opening new ones. The task manager indicates that DisplayFussion is using a low amount of CPU and RAM (it could take plenty more). The issues remind me of memory leaks.
Sep 4, 2022  • #10
Owen Muhlethaler (BFS)'s profile on WallpaperFusion.com
Could you send me a copy of your troubleshooting info? Here are the steps:
  • Open the Settings > Troubleshooting tab
  • Click the "Export Info to File" button
  • Reply with the file attached

Thanks!
29 days ago  • #11
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SQLG0d
66 discussion posts
I urge the users on this thread that have slowness issues to download Microsoft Sysinternal tool called Process Explorer. Run it and filter on all active DisplayFusion processes and have it track all Registry and File activity. Run some few minutes while doing things on your PC and then save the captured results off to a native file type, zip if up and send to BF for review. There is no hope of reasonable performance until they reduce polling to an absolute minimum, and make sure that whatever frameworks/modules they are using stop needless hammering of registry/file systems. These captures will show those in stark relief.
27 days ago  • #12
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David Overton
1 discussion post
I will run a procmon, but I wanted to share that it is possible that DF service is leaking handles. On my current system which has been running for 5 days without a reboot DF now has over 100,000 handles open. This is more than any other application and is 20% of all handles on the system.

It is also worth noting that the CPU counter in the details tab is incorrect inside taskmgr. You have to look in the processes view to see the real CPU usage.

I've just exported the troubleshooting information and it is interesting that it thinks it has < 2,500 handles including GUI, file etc while Taskmanager shows virtual memory use of 3.3GB and 113,242 handles.
• Attachment [protected]: DF Task Manager.png [27,872 bytes]
• Attachment [protected]: DisplayFusionDebugInfo-13-9-22-12-16.zip [925,680 bytes]
22 days ago  • #13
Owen Muhlethaler (BFS)'s profile on WallpaperFusion.com
Thanks for letting us know, we were able to reproduce this on our end so we'll take a look into it for our next beta.

Thanks!
21 days ago  • #14
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