From 561a3e04f6d9ca22baccbc323f970e3c84d24d48 Mon Sep 17 00:00:00 2001
From: yudian0504 <138860534+yudian0504@users.noreply.github.com>
Date: Mon, 5 Jan 2026 13:02:07 +0800
Subject: [PATCH] remove redundant mamba_cache clearing actions (#16180)

---
 python/sglang/srt/mem_cache/memory_pool.py | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/python/sglang/srt/mem_cache/memory_pool.py b/python/sglang/srt/mem_cache/memory_pool.py
index 9fb9b939b..65d562a27 100644
--- a/python/sglang/srt/mem_cache/memory_pool.py
+++ b/python/sglang/srt/mem_cache/memory_pool.py
@@ -271,12 +271,7 @@ class MambaPool:
 
         select_index = self.free_slots[:need_size]
         self.free_slots = self.free_slots[need_size:]
-        # clear at alloc time
-        for i in range(len(self.mamba_cache.conv)):
-            self.mamba_cache.conv[i][:, select_index] = 0
-        self.mamba_cache.temporal[:, select_index] = 0
-
-        # fill allocated slots with zeros
+        # clear at alloc time, fill allocated slots with zeros
         for i in range(len(self.mamba_cache.conv)):
             self.mamba_cache.conv[i][:, select_index] = 0
         self.mamba_cache.temporal[:, select_index] = 0