I think it is kernel. Look here, it is squashed, but probably the 'side-channel' restriction won't let the app read values.Btw, maybe a less relevant question now.
Any idea why would be this an issue on your ROM? Regardless of which Custom ROM I use, it works fine, just on your it doesn't.
Now if you ask me why is this benchmark tool "important" for me, well, I use it to evaluate the GPU stability under different Frequencies/Voltage tables. I do lots of testing, undervolting, etc... And 3DMark is one of the few which gives consistent results when benching or just testing the stability of the GPU.