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Question by Abacab · May 21, 2015 at 11:26 AM · shaderlagprofilerparse

Shader.Parse over 1000ms

Hello!

While running the profiler and loading level 1, there is an over 1000ms spike that is caused by Shader.Parse(562ms) and Shader.CreateGPUProgram (436ms).

What could be causing this

alt text

screen-shot-2015-05-21-at-142602.png (65.6 kB)
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avatar image Abacab · May 22, 2015 at 07:29 AM 0
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Anybody familiar with the issue?

avatar image Fornoreason1000 · May 22, 2015 at 08:14 AM 1
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I don't know why Unity does this, but what Shader.Parse is doing is loading your shader(s).

I google Shader.Parse and literally i get is question clai$$anonymous$$g how unbelievably slow it is.

http://answers.unity3d.com/questions/465777/eli$$anonymous$$ate-cpu-spike-from-shader-load.html

http://forum.unity3d.com/threads/shader-parse-bad-performance.287202/

http://answers.unity3d.com/questions/810159/hang-while-loading-assets-shaderparse.html

its even been reported as a bug by some other users. What version of Unity are you using?

avatar image Abacab · May 22, 2015 at 08:16 AM 0
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Yes I obviously googled first, but couldn't find a definite answer. Why is the spike so big?

avatar image Fornoreason1000 · May 22, 2015 at 08:21 AM 1
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I'm not sure , but it might have something to do with OpenGL

http://stackoverflow.com/questions/19974256/unity-shader-parser-error-syntax-error-at-line-19

This guy just switched to CG and it fixed itself lol. But it might be caused by shader errors too, if you have any, fix them.

I don't have Pro (yet) , so i don't have access to the profile. You could try reimporting some of your custom shader too.

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