---
id: pr-sglang-10543
repo: sgl-project/sglang
pr: 10543
title: '[sgl-kernel] Optimize concat_mla_k kernel'
author: yuan-luo
date: '2025-09-28'
url: https://github.com/sgl-project/sglang/pull/10543
source_category: upstream-code
architectures:
- sm100
tags:
- mla
techniques: []
hardware_features: []
kernel_types:
- mla
languages:
- cuda-cpp
captured_at: '2026-04-27'
status: merged
merge_sha: 42245551efd8d556692aa518a49e8f15cfa136a5
inclusion_reason: kernel file changes
changed_paths:
- benchmark/kernels/elementwise/benchmark_concat_mla.py
- sgl-kernel/csrc/elementwise/concat_mla.cu
- sgl-kernel/csrc/elementwise/utils.cuh
head_ref_oid: 7081c211d77cedb34d1bd01d2f0d934cec3a3695
artifact_dir: evidence/pull-bundles/sglang/gh-10543
---
# [sgl-kernel] Optimize concat_mla_k kernel

- Repository: `sgl-project/sglang`
- PR: [10543](https://github.com/sgl-project/sglang/pull/10543)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `benchmark/kernels/elementwise/benchmark_concat_mla.py`
- `sgl-kernel/csrc/elementwise/concat_mla.cu`
- `sgl-kernel/csrc/elementwise/utils.cuh`

## Evidence Bundle

`evidence/pull-bundles/sglang/gh-10543`
