clGetEventProfilingInfo() not working on the FIREFLY RK3288 EVK

dms

Hello,

I am running an OpenCL based code on the Firefly RK3288 EVK. However when the timing information is collected the following error is reported:
CL_PROFILING_INFO_NOT_AVAILABLE

Could you please let me know what is causing this and what could be done to resolve this issue.
I have used the Ubuntu 16.04 kernel provided in the official github link for Firefly rk3288.

Thanks and Regards
D

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