Game.EndDraw take 77% of draw time

@Payet_Romain wrote:

Hi,

I found something strange with MonoGame behavior.

I have two computers for my test:
Desktop: i7 5820k + GTX 1080
Laptop: i5 2410M + GT540M

the two computers have windows 10 and Monogame 3.5.1.1679 installed.

I have performance issue on the laptop, I think that was because of the difference of hardware perf.

but after some test I found something strange.
My project (Windows/OpenGl) act differently on this two computer.

The draw time of 3d models are about two time slower on the laptop as expected i guess.

But the strange thing is this is not the cause of my bad fps.

I measured the execution time of Microsoft.Xna.Framework.Game.DoDraw(GameTime) with Resharper, here my result:

On the desktop platform :
99.90% MyGame.Draw(GameTime)
0.09% Microsoft.Xna.Framework.Game.EndDraw

On the Laptop:
22.31% MyGame.Draw(GameTime)
77.69% Microsoft.Xna.Framework.Game.EndDraw

With the laptop 72% of the time used by Game.DoDraw are used by Game.EndDraw, I don't know if this is normal...

I try to search a reason for this in MonoGame's source without success.

I don't know how to get out of this do you have an idea ?

Thanks for reading.

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