---
id: pr-vllm-34627
repo: vllm-project/vllm
pr: 34627
title: '[Performance] Extract kv update ops from MLA attention backends'
author: ElizaWszola
date: '2026-03-02'
url: https://github.com/vllm-project/vllm/pull/34627
source_category: upstream-code
architectures:
- sm100
tags: []
techniques: []
hardware_features: []
kernel_types: []
languages: []
captured_at: '2026-05-16'
status: merged
merge_sha: d9c77308776b4d31f03fad8d4129a3d539154166
inclusion_reason: defer
changed_paths:
- vllm/config/compilation.py
- vllm/model_executor/layers/attention/mla_attention.py
- vllm/v1/attention/backend.py
artifact_dir: evidence/pull-bundles/vllm/gh-34627
head_ref_oid: cc28e8aa1618d498c6a4a3e75b065ebe4ca3e8bc
---
# [Performance] Extract kv update ops from MLA attention backends

- Repository: `vllm-project/vllm`
- PR: [34627](https://github.com/vllm-project/vllm/pull/34627)
- Decision: `defer`
- Reason: defer

## Changed Paths

- `vllm/config/compilation.py`
- `vllm/model_executor/layers/attention/mla_attention.py`
- `vllm/v1/attention/backend.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-34627`
