I've used DisplayFusion on this computer (Core 2 Quad 2.4GHz, 8GB RAM, W7Ultimate x64) for a number of months, and installed 3.4.1 as soon as it was available. Only in the last few days however, I've seen massive CPU usage and spikes when I open new tabs in browsers (IE/Firefox/Chrome) or open new apps.

Upgraded to beta 3.5.0 (beta 1) and saw the same behavior. Uninstalled DisplayFusion including all settings, restarted. Installed fresh 3.4.1 and that worked well for a few hours but now I'm back to the same behavior. After the apps or tabs are opened things settle down but while it's happening my system fans ramp up as if I'm running some massive game.

I also run this on my laptop, Core i5, 8GB RAM and have never seen this behavior. Yet.

I've got a Process Explorer screenshot of what happens when opening a few apps, one after another. I also did a Troubleshooting analysis during one of these spikes and will email that to support@binaryfortress.com.

Same here. I have been experiencing the high cpu usage for a while, with using 3.5.0 b1 and 3.4 version. The reason I upgraded to beta was to see if there has been any improvement. But same problem continues. I see 15-20 (or 10-15) cpu peaks, and at those moments, file browsing and other applications response goes down substantially, forcing me to end the displayfusion process.
As soon as I end displayfusion, all other operations are back to normal.

Any experience or workaround?

Thanks

A workaround is to set the Priority of DisplayFusion.exe to Below Normal (I use Process Explorer for this) so that although it continues to demand high CPU it doesn't drag down everything else you're trying to do. I also went in and set the Affinity of the app to not use a couple of my processors. I'm certain there are scriptable ways to do this every time you start up but I don't want to spend the effort to figure that out, as I'm sure a fix will be provided.

Thanks for the suggestions Lowell. Just a quick question though. I thought the cpu priority is only functional, if there are other applications competing for the cpu amount. In my case, laptop is mostly idle, and DF keeps 15-20. So, do you think priority would help? I believe, it will keep using the same amount since there is no competing application, most of the time.

Also, I havent tried cpu affinity; I will definitely give a try.

You're correct; in my case it's taking about 10-20% on a regular basis, but when an app opens (or even closes, looks like, but especially opening) it'll pin to 80-100% for 4-5 seconds, and that keeps going if I open another app or tab. So in that case it will definitely help performance of other apps. Affinity just make sure that it leaves at least a couple CPUs alone so other apps can use them, again for increased apparent performance of everything else.

Will do. I installed the beta and am still seeing the high CPU issues but will follow your steps first and send you the logging info.

Keith, I just sent my logs via email. Hope that helps resolving the issue. Thanks!

I will try that next.

I am having the same issue. I have the logging set as requested and when I see the issue again I will send the logs over if it will help you. It seems to ramp up slowly. I just restarted DF after changing the logging and right now it is averaging ~10% CPU.

Thank you,

Marco

So far disabling the TitleBar Buttons feature makes the high CPU usage issue go away.

Keith, Still seeing really high CPU usage with Beta 5. But I also rolled back to 3.4.0 which I thought was running normal and it seems that the CPU is running high on that version too.

I feel there may be something else. When I turn off the Title Bar buttons, and Taskbar it drops to 0-3%.

Keith,

It has been awhile since I rebooted my machine (I usually just close my laptop and go). I think I am pushing close to a month or more so I just restarted with the new Beta installed. I'll give it some time and see how it goes and keep digging around as time permits.

Keith,

I have the Application Hooks disabled. CPU is still running at 35-50%. I also still have the CPU Affinity to Single and the Process running at low priority.

Hi folks. None of the beta versions helped me either. I found only way not using DF for a while (even though I am missing DF a lot, I really need it). Hopefully we will get a solution.

Thanks and have a nice weekend!

I had CPU creep up on me this afternoon after Beta 5 install.. I am running Bins 1.0.0.221. I am disabling Bins now and re running DF.

10 hours later, CPU usage normal. going to restart Bins now...

--Jason

So far using the latest beta (5) and seeing no issues. I re-enabled the task button to swap windows, restarted computer, still no issues. I had Bins installed at one point but uninstalling it hadn't made a difference.