Autohide LayoutAnchorable causes CPU load on idle

[ladych]

Steps to reproduce

*Build attached Project
*start project
*select Layout test
*Click edit field (in order Tab doesnot autohide).

While Autohidden Tab is visible something causes cpu usage even if the user does not do anything.
AvaloneCpuConsumptionReprodeucer.zip

[Dirkster99]

Hi, I am having trouble to verify your issue with your test client. I see only a small increase in CPU percentage (between 0.2% and 0.1 percent for a short moment) when I activate or deactivate the app. Otherwise, the percentage of CPU usage is at 0.0%.

Should I be doing something else to verify your problem?

Ah, I think I see now what you mean (you are referring to this state, right?):

This is probably due to the code in the AutoHideWindowManager which is being called on a timer base to check if the control can be closed. The timer can be configured with the AutoHideDelay dependency property.

Would setting a different AutoHideDelay value improve this for you or would you solve this in a completely different way? If so, please show me the PR :-)

[Dirkster99]

The issue seems to be caused by the default AutHideDelay=0 value - I see that the CPU load goes down to 0% if I use 500 as AutoHideDelay value and the UI is still as responsive as before. Do you think using 500 as AutoHideDelay default value would improve this or would you rather use a different value?

[ladych]

In my case 500 ms helps. Some default velue is very helpful for novice.