GPU usage is very high AMD 5870

[Fantasy]

hello everyone
i have a 5870 with Drivers 11.5 and my GPU usage is 60% when i build and run my game in SFML.
i don't have anything in my game its just a black windows, so why is it using 60% ?!!
thankx

[Laurent]

Is it really the GPU, or do you mean "the CPU"?

[Fantasy]

Is it really the GPU, or do you mean "the CPU"?

yes its the GPU not CPU.
its the graphics processing unit that is getting 60% usage

[Laurent]

How can you see the GPU consumption?

Can you show us your source code?

[Fantasy]

How can you see the GPU consumption?

Can you show us your source code?

i use AMD Catalyst Control Center to see my GPU usage.
as for the source code its just a simple black windows

Code: [Select]


#include <SFML/Window.hpp>

int main()
{
    sf::Window App(sf::VideoMode(800, 600, 32), "SFML Window");

    bool Running = true;
    while (Running)
    {
        App.Display();
    }

    return 0;
}


[Groogy]

Well that's because your framerate there will be huge. You never sleep or wait anything so you will be running as fast as the CPU can.

[Fantasy]

Well that's because your framerate there will be huge. You never sleep or wait anything so you will be running as fast as the CPU can.

so if i lock my frame rate to 60 it will lower both cpu and gpu usage right ?

[Groogy]

It should.

[alphazeeno]

Try using

Code: [Select]

App.SetFramerateLimit(60);

and,

Code: [Select]

App.EnableVerticalSync(true)

right after your window initialization.

[OniLinkPlus]

Try using

Code: [Select]

App.SetFramerateLimit(60);

and,

Code: [Select]

App.EnableVerticalSync(true)

right after your window initialization.

That's redundant, if you do both, only one will be used, which is VSync, iirc. Just set the framerate limit to 60.