Jump to content
  • Advertisement
Sign in to follow this  
Odiee

[SDL] reducing cpu power

This topic is 3267 days old which is more than the 365 day threshold we allow for new replies. Please post a new topic.

If you intended to correct an error in the post then please contact us.

Recommended Posts

Hello. How do I reduce CPU power on my program? When I use
while(quit)
{
 while(SDL_PollEvent(&event)
 {
  ...
 }
}
CPU on that program goes to 48-50%. How do I achieve 0% while nothing is happening?

Share this post


Link to post
Share on other sites
Advertisement
I don't really know SDL, but it appears that SDL_WaitEvent does what you want - waits until an event (mouse move, keyboard press, etc) before returning. Note that this implies that it's also not updating the screen while nothing is happening, but presumably you already knew that...

Share this post


Link to post
Share on other sites
SDL_Delay(a few milliseconds); at the end of the outer while loop should work wonders. Reduces the cpu use to near zero, but doesn't busy-wait until something happens.

Share this post


Link to post
Share on other sites
Sign in to follow this  

  • Advertisement
×

Important Information

By using GameDev.net, you agree to our community Guidelines, Terms of Use, and Privacy Policy.

We are the game development community.

Whether you are an indie, hobbyist, AAA developer, or just trying to learn, GameDev.net is the place for you to learn, share, and connect with the games industry. Learn more About Us or sign up!

Sign me up!