ScreenshotCaptor now prevents CPU from going to low-power mode

[sba]

Hi,

While investigating my laptop's power consumption using "powercfg /energy" I noticed that ScreenshotCaptor is now listed as one of the processes that use the CPU in such a way that prevents it from being switched to its lowest-power mode. This was not the case previously (before 4.8?).

Process Explorer seems to reveal some sort of polling: see the huge number of cycles and context switches in the attached screenshot.

Can you please look into this (and fix the issue)?

Best regards,

Stéphane.

[mouser]

Can you check this:

Go to "Startup Options" tab, and look where it says "Inactive Memory Use" -- and make sure you don't have it set to "Stay in Memory Longer" (try Minimal Memory Use).
I don't know if that will solve it -- it may be polling for changes to the screenshot folder to check for changes.. If so, i *might* be able to add an option to disable that.. though it could be messy.

[sba]

The "memory" option, as expected, doesn't affect the polling.

You don't need to poll to discover changes in a directory: use FindFirstChangeNotification (http://msdn.microsoft.com/en-us/library/windows/desktop/aa364417(v=vs.85).aspx) to get notified when something happens in the screenshot folder.

[sba]

Any  news?

[mouser]

Can you email me (mouser@donationcoder.com) -- i'd like to try making a special build to see if we can figure out which library/component is doing the polling and go from there.