---
id: pr-vllm-31167
repo: vllm-project/vllm
pr: 31167
title: '[Perf] Remove blocking copy in GDN Attention'
author: benchislett
date: '2025-12-22'
url: https://github.com/vllm-project/vllm/pull/31167
source_category: upstream-code
architectures:
- sm100
tags: []
techniques: []
hardware_features: []
kernel_types: []
languages: []
captured_at: '2026-05-16'
status: merged
merge_sha: 85aff45e24de7af96d30baa1d7d0fc7aec43c28a
inclusion_reason: defer
changed_paths:
- vllm/v1/attention/backends/gdn_attn.py
artifact_dir: evidence/pull-bundles/vllm/gh-31167
head_ref_oid: cdef87f1289cff8ec954681e903e8c636743a1b0
---
# [Perf] Remove blocking copy in GDN Attention

- Repository: `vllm-project/vllm`
- PR: [31167](https://github.com/vllm-project/vllm/pull/31167)
- Decision: `defer`
- Reason: defer

## Changed Paths

- `vllm/v1/attention/backends/gdn_attn.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-31167`
