Unsolved QT applications occupy CPU resources have been very high
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@J.Hilk Well, I guess it is 183% of physical memory :-)
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dvrui maybe it is a gui program that display a video stream.
Really is there someone that writes a daemon software for embedded devices in Java? -
@Roy.Wang Does any other Qt application exhibit this same behavior? That would probably be more application based rather than a Qt thing.
I'm betting dvrui uses some type of hardware (just guessing based on it's name). So when the pc sleeps and shuts down that hardware, then comes back up, the application isn't deal with that loss and reacquire properly.
Totally guessing though. That's why you should test with any other Qt application to find out if it's dvrui or Qt.
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DvrUI is a simple QT application without doing anything.
This happens in all QT applications
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@jsulm VideoPro is a video program, I do not start it, DvrUI sleep back, will also have to occupy such a high CPU resources
DvrUI is a simple QT application without doing anything.No interfaces are called.
This happens in all QT applications
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@Roy.Wang Is it the same if VideoPro is not running?
"I do not start it" - it is running as you can see in your screen-shot. -
@jsulm Yes
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@jsulm it is the same if VideoPro is not running,
The DvrUI app, CPU resources occupy a high (25%). -
@Roy.Wang What is the device where you have this issue?
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@jsulm a linux system device
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@Roy.Wang Thats as detailed of an Answer as "A blue one" is to the question "What car do you drive?"
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@Roy.Wang said in QT applications occupy CPU resources have been very high:
DvrUI is a simple QT application without doing anything.
This happens in all QT applications
What other Qt applications have displayed that behavior? Are you sure it's all of them, or just the dvr related ones that you have tried?
Also can you run an
strace
and see what they are doing that is using the high amount of cpu? That should help in tracking it down.Qt obviously isn't designed to do that and it seems specific to your machine, so maybe strace can give us an idea of what is causing the cpu to spin like that.