Cole Chapman Posted August 7, 2011 Posted August 7, 2011 When I have VSync on The program's CPU Usage stays around 4-6%. When I turn VSync off, the CPU Usage goes to about 50%. Is that big of a change normal? EDIT: On that same note, I think its sweet that the CPU performance is so low when VSync in on. I use "While PeekEvent" in BMax (without any Leadwerks code) and the CPU Usage is about 50% but when I use leadwerks and set VSync on, it stays low (4-6%) so thats sweet. Quote
macklebee Posted August 7, 2011 Posted August 7, 2011 yes Quote Win7 64bit / Intel i7-2600 CPU @ 3.9 GHz / 16 GB DDR3 / NVIDIA GeForce GTX 590 LE / 3DWS / BMX / Hexagon macklebee's channel
Canardia Posted August 7, 2011 Posted August 7, 2011 If you add Sleep(10) (=Delay(10) in bmx) after Flip, you have 0% CPU usage. So CPU usage does not really say how much CPU is used, but rather how much idle time the application is giving out to Windows. Quote ■ Ryzen 9 ■ RX 6800M ■ 16GB ■ XF8 ■ Windows 11 ■ ■ Ultra ■ LE 2.5 ■ 3DWS 5.6 ■ Reaper ■ C/C++ ■ C# ■ Fortran 2008 ■ Story ■ ■ Homepage: https://canardia.com ■
Mumbles Posted August 7, 2011 Posted August 7, 2011 I use Sleep(1) instead of Sleep(10). About 2% CPU usage but far more physics updates can be done in that time than just with VSync alone... Since I run physics at 100 UPS that gives each step a total time of about 9 ms to run whilst still leaving time for networking (in future) and keyboard/mouse input. Quote LE Version: 2.50 (Eventually)
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