diff --git a/event/src/main/java/com/zfoo/event/manager/EventBus.java b/event/src/main/java/com/zfoo/event/manager/EventBus.java
index 940c57ed..c5be0d33 100644
--- a/event/src/main/java/com/zfoo/event/manager/EventBus.java
+++ b/event/src/main/java/com/zfoo/event/manager/EventBus.java
@@ -48,7 +48,7 @@ public abstract class EventBus {
 
     private static final ExecutorService[] executors = new ExecutorService[EXECUTORS_SIZE];
 
-    private static final CopyOnWriteHashMapLongObject<ExecutorService> threadMap = new CopyOnWriteHashMapLongObject<>();
+    private static final CopyOnWriteHashMapLongObject<ExecutorService> threadMap = new CopyOnWriteHashMapLongObject<>(EXECUTORS_SIZE);
 
     private static final Map<Class<? extends IEvent>, List<IEventReceiver>> receiverMap = new HashMap<>();
 
diff --git a/net/src/main/java/com/zfoo/net/task/TaskBus.java b/net/src/main/java/com/zfoo/net/task/TaskBus.java
index 4fa258c8..c4f88993 100644
--- a/net/src/main/java/com/zfoo/net/task/TaskBus.java
+++ b/net/src/main/java/com/zfoo/net/task/TaskBus.java
@@ -43,7 +43,7 @@ public final class TaskBus {
 
     private static final Logger logger = LoggerFactory.getLogger(TaskBus.class);
 
-    // 线程池的大小
+    // 线程池的大小，也可以通过provider thread配置指定
     public static final int EXECUTOR_SIZE;
 
     private static final ITaskDispatch taskDispatch;
@@ -54,8 +54,6 @@ public final class TaskBus {
      */
     private static final ExecutorService[] executors;
 
-    private static final CopyOnWriteHashMapLongObject<ExecutorService> threadMap = new CopyOnWriteHashMapLongObject<>();
-
     static {
         var localConfig = NetContext.getConfigManager().getLocalConfig();
         var providerConfig = localConfig.getProvider();
@@ -74,6 +72,8 @@ public final class TaskBus {
         }
     }
 
+    private static final CopyOnWriteHashMapLongObject<ExecutorService> threadMap = new CopyOnWriteHashMapLongObject<>(EXECUTOR_SIZE);
+
     public static class TaskThreadFactory implements ThreadFactory {
         private final int poolNumber;
         private final AtomicInteger threadNumber = new AtomicInteger(1);
diff --git a/protocol/src/main/java/com/zfoo/protocol/collection/concurrent/CopyOnWriteHashMapLongObject.java b/protocol/src/main/java/com/zfoo/protocol/collection/concurrent/CopyOnWriteHashMapLongObject.java
index 7ceaf9ed..f0f09cc7 100644
--- a/protocol/src/main/java/com/zfoo/protocol/collection/concurrent/CopyOnWriteHashMapLongObject.java
+++ b/protocol/src/main/java/com/zfoo/protocol/collection/concurrent/CopyOnWriteHashMapLongObject.java
@@ -26,7 +26,15 @@ import java.util.concurrent.locks.ReentrantLock;
 public class CopyOnWriteHashMapLongObject<V> implements Map<Long, V> {
 
     private final ReentrantLock lock = new ReentrantLock();
-    private volatile LongObjectHashMap<V> map = new LongObjectHashMap<>();
+    private volatile LongObjectHashMap<V> map;
+
+    public CopyOnWriteHashMapLongObject() {
+        map = new LongObjectHashMap<>();
+    }
+
+    public CopyOnWriteHashMapLongObject(int initialCapacity) {
+        map = new LongObjectHashMap<>(initialCapacity);
+    }
 
     private LongObjectHashMap<V> newCopyMap() {
         var newMap = new LongObjectHashMap<V>();