Can I read Vsync Impact on CPU Usage in OpenGL on EtoBox?

Vsync Impact on CPU Usage in OpenGL by ciuciu.denis.2023 is a document available to read on EtoBox.

What is Vsync Impact on CPU Usage in OpenGL about?

The document discusses high CPU utilization when using vsync with OpenGL rendering. It describes a test program that shows 100% CPU usage with vsync enabled compared to 0% without. Suggestions to disable multithreaded optimization in the GPU driver or remove a sleep call after swap buffers only partially reduce the CPU usage. The cause appears to be the GPU driver constantly checking for the next frame time instead of idling.

Author

ciuciu.denis.2023

Language

EN