diff --git a/README.md b/README.md
index 1788fc1..56f034f 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,20 @@
 # MiniNetty
 
-迷你版Netty
+## 实现的功能
+
+- channelActive/channelInActive/channelRead/channelWrite事件处理
+
+- Handler链式处理
+
+- StringEncoder/StringDecoder
+
+- LengthFieldBasedDecoder
+
+- DelimiterBasedDecoder
+
+- LineBasedDecoder
+
+## 线程模型
+
+![ThreadMode](images/thread_mode.jpg)
+
diff --git a/images/thread_mode.jpg b/images/thread_mode.jpg
new file mode 100644
index 0000000..3638b6e
Binary files /dev/null and b/images/thread_mode.jpg differ
diff --git a/src/main/java/selector/QueuedSelector.java b/src/main/java/selector/QueuedSelector.java
index bbbe993..d4b32fa 100644
--- a/src/main/java/selector/QueuedSelector.java
+++ b/src/main/java/selector/QueuedSelector.java
@@ -36,7 +36,7 @@ public final class QueuedSelector implements Runnable, LifeCycle {
 	private final ArrayDeque<Runnable> jobs;
 	private final static int defaultQueueSize = 100;
 	// 默认ByteBuffer分配大小
-	private static final int defaultAllocateSize = 128;
+	private static final int defaultAllocateSize = 1024;
 	private final ExecutorService executor;
 	private boolean closed = false;
 	private static final Logger logger = LoggerFactory