adreno 使用opencl,利用constant memory优化的问题

[November1Rain]

Adreno GPUs support on-chip constant memory. It has the best latency and superior performance,among the four types of memory. Constant memory is usually used in the following cases:
以上是高通adreno原文介绍,请问有人使用过吗,本人尝试将卷积核放到常量内存,但效果没有变化,不知道是使用方式错误还是怎么样.希望有人能交流