---
id: pr-sglang-14093
repo: sgl-project/sglang
pr: 14093
title: Add fused FP8 KV cache write kernel for TRTLLM MHA backend
author: harvenstar
date: '2025-12-05'
url: https://github.com/sgl-project/sglang/pull/14093
source_category: upstream-code
architectures:
- sm100
tags: []
techniques: []
hardware_features: []
kernel_types: []
languages: []
captured_at: '2026-05-16'
status: merged
merge_sha: 38daa29466c6c05f6e75c24c69c230382155d809
inclusion_reason: defer
changed_paths:
- python/sglang/srt/layers/attention/trtllm_fp8_kv_kernel.py
- python/sglang/srt/layers/attention/trtllm_mha_backend.py
- python/sglang/srt/models/qwen3_moe.py
- test/manual/test_trtllm_fp8_kv_kernel.py
artifact_dir: evidence/pull-bundles/sglang/gh-14093
head_ref_oid: 60d9b771e7146120e599e05d903deb0387a83c77
---
# Add fused FP8 KV cache write kernel for TRTLLM MHA backend

- Repository: `sgl-project/sglang`
- PR: [14093](https://github.com/sgl-project/sglang/pull/14093)
- Decision: `defer`
- Reason: defer

## Changed Paths

- `python/sglang/srt/layers/attention/trtllm_fp8_kv_kernel.py`
- `python/sglang/srt/layers/attention/trtllm_mha_backend.py`
- `python/sglang/srt/models/qwen3_moe.py`
- `test/manual/test_trtllm_fp8_kv_kernel.py`

## Evidence Bundle

`evidence/pull-bundles/sglang/gh-14093`
