Low performance when execute eglSwapBuffer and eglMakeCurrent

Question

I\'m developing an Android Unity Plugin that allows user to record his/her gameplay
Overview of my solution:

• Using OpenGl FrameBufferObject (FBO) to make Unit

Answer 1

A lot of OpenGL calls are assync, and some calls may cause the OpenGL wait the queued operations to execute. So the times you are seen are because of the other calls that execute before the actual call you are doing.