diff --git a/Kernel/src/Double_State_Strategy.hpp b/Kernel/src/Double_State_Strategy.hpp
index 7a96486..3cad56d 100644
--- a/Kernel/src/Double_State_Strategy.hpp
+++ b/Kernel/src/Double_State_Strategy.hpp
@@ -56,6 +56,7 @@ private:
     std::uint64_t cache_ver{};
     std::atomic<std::uint64_t> render_ver{};
 };
+// SPSC
 template <Has_State_Type That>
 struct Triple_State_Strategy : That {
     using State = typename That::State;
diff --git a/Kernel/设计文档.md b/Kernel/设计文档.md
index 03f4a0c..f013a83 100644
--- a/Kernel/设计文档.md
+++ b/Kernel/设计文档.md
@@ -6,4 +6,7 @@ renderable 可以被渲染的基础元素
 
 plot 上下文对象聚合所有策略
 
+使用这个无锁的数据结构
+https://github.com/boostorg/lockfree/tree/boost-1.91.0
 
+使用MPSC的队列 之前用的都是错误的
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