Hello,
I am experiencing performance issues with Intel OpenCL drivers when calling clCreateKernel().
Attached you can find a test code (using Boost Compute) with reference values taken from various OpenCL devices.
Here, the Intel drivers show by far the worst results by a factor of 10 to 600 compared to other vendors.
Please let me know which further details you need, or where I can file a bug report, to get this fixed.
Best regards