---
id: pr-tilelang-1519
repo: tile-ai/tilelang
pr: 1519
title: '[Enhancement] Improve GitHub Actions permissions check and refine performance regression testing'
author: xwhzz
date: '2025-12-24'
url: https://github.com/tile-ai/tilelang/pull/1519
source_category: upstream-code
architectures:
- sm100
tags:
- attention
- attention kernel
techniques: []
hardware_features: []
kernel_types:
- attention
languages:
- cuda-cpp
captured_at: '2026-05-16'
status: merged
merge_sha: d7e264f328306d618dc8fdf41b33ab3a186a765c
inclusion_reason: Search-matched CUDA kernel optimization PR; materialize diff/source before synthesis.
changed_paths:
- .github/workflows/pr-regression-test-bot.yml
- examples/dynamic_shape/example_dynamic.py
- examples/flash_attention/example_gqa_bwd_wgmma_pipelined.py
- examples/flash_attention/example_gqa_fwd_bshd.py
- examples/flash_attention/example_gqa_fwd_bshd_wgmma_pipelined.py
- examples/flash_attention/example_mha_fwd_varlen.py
- examples/gemm_fp8/example_tilelang_gemm_fp8_intrinsic.py
- examples/gemm_streamk/regression_example_tilelang_gemm_splitk.py
- maint/scripts/test_perf_regression.py
- tilelang/testing/perf_regression.py
artifact_dir: evidence/pull-bundles/tilelang/gh-1519
head_ref_oid: b8dbcf892566767d306ddf83a4f1dde08b25d975
---
# [Enhancement] Improve GitHub Actions permissions check and refine performance regression testing

- Repository: `tile-ai/tilelang`
- PR: [1519](https://github.com/tile-ai/tilelang/pull/1519)
- Decision: `Search-matched CUDA kernel optimization PR; materialize diff/source before synthesis.`
- Reason: Search-matched CUDA kernel optimization PR; materialize diff/source before synthesis.

## Changed Paths

- `.github/workflows/pr-regression-test-bot.yml`
- `examples/dynamic_shape/example_dynamic.py`
- `examples/flash_attention/example_gqa_bwd_wgmma_pipelined.py`
- `examples/flash_attention/example_gqa_fwd_bshd.py`
- `examples/flash_attention/example_gqa_fwd_bshd_wgmma_pipelined.py`
- `examples/flash_attention/example_mha_fwd_varlen.py`
- `examples/gemm_fp8/example_tilelang_gemm_fp8_intrinsic.py`
- `examples/gemm_streamk/regression_example_tilelang_gemm_splitk.py`
- `maint/scripts/test_perf_regression.py`
- `tilelang/testing/perf_regression.py`

## Evidence Bundle

`evidence/pull-bundles/tilelang/gh-1519`
