From 5b60b7c6511fc8e26ce4bfd20daa92de6a894c17 Mon Sep 17 00:00:00 2001 From: Baizhou Zhang Date: Tue, 18 Aug 2026 00:03:37 -0700 Subject: [PATCH] [DSV4] Turn on mhc post pre fusion by default (#35214) --- python/sglang/srt/environ.py | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/python/sglang/srt/environ.py b/python/sglang/srt/environ.py index e3ad080f3..fa802f44d 100644 --- a/python/sglang/srt/environ.py +++ b/python/sglang/srt/environ.py @@ -1265,7 +1265,7 @@ class Envs: SGLANG_OPT_USE_TILELANG_MHC_PRE = EnvBool(True) SGLANG_OPT_USE_TILELANG_MHC_POST = EnvBool(True) SGLANG_OPT_USE_FLASHINFER_MHC = EnvBool(False) - SGLANG_OPT_FUSE_MHC_POST_PRE = EnvBool(False) + SGLANG_OPT_FUSE_MHC_POST_PRE = EnvBool(True) SGLANG_OPT_USE_TILELANG_INDEXER = EnvBool(False) SGLANG_OPT_DSV4_NONPAGED_INDEXER = EnvBool(True) # Per-rank local query rows (after DP-attention sharding when enabled),