---
id: pr-vllm-26440
repo: vllm-project/vllm
pr: 26440
title: '[Performance] Dual stream execution of "shared_experts" and "selected_experts" inside FusedMoE'
author: alexm-redhat
date: '2025-10-21'
url: https://github.com/vllm-project/vllm/pull/26440
source_category: upstream-code
architectures:
- sm100
tags:
- kernel-fusion
- moe
techniques:
- kernel-fusion
hardware_features: []
kernel_types:
- moe
languages:
- python
captured_at: '2026-04-27'
status: merged
merge_sha: 344a0017c06e40041efe35ccff7670c1131067e3
inclusion_reason: kernel file changes
changed_paths:
- vllm/envs.py
- vllm/model_executor/layers/fused_moe/layer.py
- vllm/model_executor/layers/fused_moe/shared_fused_moe.py
- vllm/model_executor/models/deepseek_v2.py
head_ref_oid: eae5398b87ef7c8ad54cf5eaf5120687b78bdb6a
artifact_dir: evidence/pull-bundles/vllm/gh-26440
---
# [Performance] Dual stream execution of "shared_experts" and "selected_experts" inside FusedMoE

- Repository: `vllm-project/vllm`
- PR: [26440](https://github.com/vllm-project/vllm/pull/26440)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `vllm/envs.py`
- `vllm/model_executor/layers/fused_moe/layer.py`
- `vllm/model_executor/layers/fused_moe/shared_fused_moe.py`
- `vllm/model_executor/models/deepseek_v2.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-26440`
