Question about "[All Streams] on Timeline View in Nsight Systems

I have a question about "[All Streams] on Timeline View in Nsight Systems.

In Timeline View, We can see various CUDA kernel workload with percentage. It seems helpful.

Is there any documentation about pull down for CUDA tree.?

I cannot found the documentation on User Guide::Nsight Systems.
https://docs.nvidia.com/nsight-systems/UserGuide/index.html

I attach qdrep output from cuda-samples/streamOrderedAllocation.

I want to know the meaning of

  • The Kernel percentage (%) meaning
  • Stream number (in this case 13 and 14). where this stream ID coming from?

image