---
id: pr-sglang-19536
repo: sgl-project/sglang
pr: 19536
title: '[Perf] Optimize NSA backend metadata under MTP'
author: b8zhong
date: '2026-03-01'
url: https://github.com/sgl-project/sglang/pull/19536
source_category: upstream-code
architectures:
- sm100
tags: []
techniques: []
hardware_features: []
kernel_types: []
languages: []
captured_at: '2026-05-16'
status: merged
merge_sha: 80a6b32703db7f0fe1ef69fa9b5e2154f3e51258
inclusion_reason: defer
changed_paths:
- python/sglang/srt/layers/attention/nsa_backend.py
- python/sglang/srt/layers/attention/utils.py
artifact_dir: evidence/pull-bundles/sglang/gh-19536
head_ref_oid: fe192a96600e8c51c2a251438155425de18e57a7
---
# [Perf] Optimize NSA backend metadata under MTP

- Repository: `sgl-project/sglang`
- PR: [19536](https://github.com/sgl-project/sglang/pull/19536)
- Decision: `defer`
- Reason: defer

## Changed Paths

- `python/sglang/srt/layers/attention/nsa_backend.py`
- `python/sglang/srt/layers/attention/utils.py`

## Evidence Bundle

`evidence/pull-bundles/sglang/gh-19536`
