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Author Topic: CPU usage 100% help  (Read 1543 times)

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smilesprower

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CPU usage 100% help
« on: June 03, 2017, 05:24:02 pm »
Quick question
Why is my cpu usage at 100% when I enable vsync ?
If I used window.setFramerateLimit(60) this is not the case and the cpu usage is relatively low

My graphics card is a nvidia gtx970.
Thanks

Code: [Select]
int main()
{
sf::RenderWindow window(sf::VideoMode(200, 200), "SFML works!");
window.setVerticalSyncEnabled(true);

while (window.isOpen())
{
sf::Event event;
while (window.pollEvent(event)){
if (event.type == sf::Event::Closed)
window.close();
}
window.clear();
window.display();
}
return 0;
}

eXpl0it3r

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Re: CPU usage 100% help
« Reply #1 on: June 03, 2017, 09:47:18 pm »
Check your GPU driver settings, some allow to globally set it to on or off.
Official FAQ: https://www.sfml-dev.org/faq.php
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smilesprower

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Re: CPU usage 100% help
« Reply #2 on: June 04, 2017, 03:07:48 pm »
The frames are still locked to 60 its just using 100% cpu time.

 

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