---
id: pr-sglang-7020
repo: sgl-project/sglang
pr: 7020
title: 'Remove 200us slow concat kernel (part 2: srt)'
author: fzyzcjy
date: '2025-06-13'
url: https://github.com/sgl-project/sglang/pull/7020
source_category: upstream-code
architectures:
- sm100
tags: []
techniques: []
hardware_features: []
kernel_types: []
languages: []
captured_at: '2026-05-16'
status: merged
merge_sha: c49c1d9226ad0a380aa854f60ea7daf5db191477
inclusion_reason: defer
changed_paths:
- python/sglang/srt/layers/attention/cutlass_mla_backend.py
- python/sglang/srt/models/deepseek_v2.py
artifact_dir: evidence/pull-bundles/sglang/gh-7020
head_ref_oid: 87a2950bee2890528daf0fbae6a1d9fa93055fbf
---
# Remove 200us slow concat kernel (part 2: srt)

- Repository: `sgl-project/sglang`
- PR: [7020](https://github.com/sgl-project/sglang/pull/7020)
- Decision: `defer`
- Reason: defer

## Changed Paths

- `python/sglang/srt/layers/attention/cutlass_mla_backend.py`
- `python/sglang/srt/models/deepseek_v2.py`

## Evidence Bundle

`evidence/pull-bundles/sglang/gh-7020`
