masahi commented on pull request #7044:
URL: https://github.com/apache/tvm/pull/7044#issuecomment-740084249
> What kind of perf improvement do you see with this?
Well, the comparison would be a bit embarrassing, since the current one is
the worst gpu kernel ever :) Below is an excerpt from nvprof log. This result
is obtained on my crappy laptop gpu, but the difference is still significant (5
ms vs 20 us).
Current one
```
Duration Grid Size Block Size Name
5.5576ms (1 1 1) (1 1 1) fused_scatter_add_1_kernel1
```
New one in this PR
```
Duration Grid Size Block Size Name
22.176us (10 1 1) (1024 1 1) fused_scatter_add_1_kernel1
```
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