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while working with synthclipse i become more and more interested in the actual rendertime, for making simple performance comparison of tiny optimizations, what about an implementation of a super high performance timer to calculate the rendertime? i am unsure which would suite best for java but i believe there is some kind of high precision timer available in java

because i have a rather fast gpu, it says all the time it takes 0.016 seconds to calculate but i do not really believe what i see perhaps it can be even extended to some upper/lower bounds for the render time, and average and most recent  

what me concerns is that it does not really differ it does not really goes below "0.015s" for example, compare a complex scene to a single color return value they go up if the scene is too complex but it seems to not go below a certain limit but a single color output should render much faster than "0.01s"!!

so it might not be reasonable to display more decimals, but there might be a slight error in the way it is calculated, count time before call to "render" and after "render" there might be some delays counted in that variable better check how it is actually retrieved 

i suspected that it is hard to get the exact rendertime, but since what a shader developer is interested in: does the tiny itsy bitsy changes of code have impact on the performance and how much. in fact i am quite unsure about the actual rendering costs of various shaders, some take reaaally long and bring my card to its limit but some others are extremely gpu friendly, although rendering a hole bunch of stuff, for example the - fractal cartoon - seems to be very efficently implemented perhaps because it doesnt use many branches, so gpu exact rendertime for a fragment shader comes in extreeemly handy!

nevertheless its a versatile and awesome program i am using it nearly every day since i discovered it

0.016s ~ 60Hz, so this suggest that the frame rate is limited by the screen refresh rate. You probably need to disable VSYNC to measure shader times.

To be sure, you unchecked "V-Sync (limited FPS)" (on the Rendering View) when taking frame time measurement? (As suggested by Syntopia)

Well, restoring paramters might be it. Do you have same feeling when "Remember parameters between builds" is unchecked in the Uniform Controls View?
Please also check if selected Buffer size "Same as Viewport" (in the Rendering View) makes difference. It should be a little faster than rendering with custom buffer size, but I don't know if it is really that much.

Have you tested this on Fragx/Stoy shaders or on JSX scritps? JSX scripts are loaded slower since they always destroy and create a new OpenGL context. In the other hand Fragx/Stoy shaders are using always one context.

hmm, ok, it seems to be fixed with unchecking the vsinc alright