diff --git a/src/META-INF/application-template.xml b/src/META-INF/application-template.xml
index 9f3662461..6a861c0be 100644
--- a/src/META-INF/application-template.xml
+++ b/src/META-INF/application-template.xml
@@ -35,13 +35,13 @@
             【节点全局唯一】
             transport节点只能有一个，用于配置所有Transport的池参数，没配置该节点将自动创建一个。
             threads： 线程总数， 默认: <group>节点数*CPU核数*8
-            bufferCapacity: ByteBuffer的初始化大小， 默认: 8K; 
+            bufferCapacity: ByteBuffer的初始化大小， 默认: 32K; 
             bufferPoolSize： ByteBuffer池的大小，默认: <group>节点数*CPU核数*8
             readTimeoutSecond: TCP读取超时秒数, 默认为6秒， 为0表示无超时限制
             writeTimeoutSecond: TCP写入超时秒数, 默认为6秒， 为0表示无超时限制
             strategy: 远程请求的负载均衡策略， 必须是org.redkale.net.TransportStrategy的实现类
         -->
-        <transport bufferCapacity="8K" bufferPoolSize="32" threads="32" readTimeoutSecond="6" writeTimeoutSecond="6"/>
+        <transport bufferCapacity="32K" bufferPoolSize="32" threads="32" readTimeoutSecond="6" writeTimeoutSecond="6"/>
         
         <!--
             一个组包含多个node， 同一Service服务可以由多个进程提供，这些进程称为一个GROUP，且同一GROUP内的进程必须在同一机房或局域网内
@@ -118,7 +118,7 @@
         threads： 线程总数， 默认: CPU核数*16
         maxconns：最大连接数, 小于1表示无限制， 默认: 0
         maxbody: request.body最大值， 默认: 64K
-        bufferCapacity: ByteBuffer的初始化大小， 默认: 8K;  如果是HTTP协议则默认: 16K + 16B (兼容HTTP 2.0、WebSocket)
+        bufferCapacity: ByteBuffer的初始化大小， 默认: 32K;  (HTTP 2.0、WebSocket，必须要16k以上)
         bufferPoolSize： ByteBuffer池的大小，默认: CPU核数*512
         responsePoolSize： Response池的大小，默认: CPU核数*256
         readTimeoutSecond: 读操作超时秒数， 默认0， 表示永久不超时
diff --git a/src/org/redkale/boot/Application.java b/src/org/redkale/boot/Application.java
index 9f5a5dd98..9fc9f429c 100644
--- a/src/org/redkale/boot/Application.java
+++ b/src/org/redkale/boot/Application.java
@@ -248,7 +248,7 @@ public final class Application {
         AsynchronousChannelGroup transportGroup = null;
         final AnyValue resources = config.getAnyValue("resources");
         TransportStrategy strategy = null;
-        int bufferCapacity = 8 * 1024;
+        int bufferCapacity = 32 * 1024;
         int bufferPoolSize = Runtime.getRuntime().availableProcessors() * 16;
         int readTimeoutSecond = TransportFactory.DEFAULT_READTIMEOUTSECOND;
         int writeTimeoutSecond = TransportFactory.DEFAULT_WRITETIMEOUTSECOND;
@@ -260,7 +260,7 @@ public final class Application {
             if (groupsize > 0 && transportConf == null) transportConf = new DefaultAnyValue();
             if (transportConf != null) {
                 //--------------transportBufferPool-----------
-                bufferCapacity = Math.max(parseLenth(transportConf.getValue("bufferCapacity"), bufferCapacity), 4 * 1024);
+                bufferCapacity = Math.max(parseLenth(transportConf.getValue("bufferCapacity"), bufferCapacity), 8 * 1024);
                 bufferPoolSize = parseLenth(transportConf.getValue("bufferPoolSize"), groupsize * Runtime.getRuntime().availableProcessors() * 8);
                 readTimeoutSecond = transportConf.getIntValue("readTimeoutSecond", readTimeoutSecond);
                 writeTimeoutSecond = transportConf.getIntValue("writeTimeoutSecond", writeTimeoutSecond);
@@ -289,7 +289,7 @@ public final class Application {
                 } catch (Exception e) {
                     throw new RuntimeException(e);
                 }
-                logger.log(Level.INFO, Transport.class.getSimpleName() + " configure bufferCapacity = " + bufferCapacity + "; bufferPoolSize = " + bufferPoolSize + "; threads = " + threads + ";");
+                logger.log(Level.INFO, Transport.class.getSimpleName() + " configure bufferCapacity = " + bufferCapacity/1024 + "K; bufferPoolSize = " + bufferPoolSize + "; threads = " + threads + ";");
             }
         }
         if (transportGroup == null) {
diff --git a/src/org/redkale/net/Server.java b/src/org/redkale/net/Server.java
index 0238bf0a1..ed2025bc8 100644
--- a/src/org/redkale/net/Server.java
+++ b/src/org/redkale/net/Server.java
@@ -109,8 +109,8 @@ public abstract class Server<K extends Serializable, C extends Context, R extend
         this.writeTimeoutSecond = config.getIntValue("writeTimeoutSecond", 0);
         this.backlog = parseLenth(config.getValue("backlog"), 8 * 1024);
         this.maxbody = parseLenth(config.getValue("maxbody"), 64 * 1024);
-        int bufCapacity = parseLenth(config.getValue("bufferCapacity"), 8 * 1024);
-        this.bufferCapacity = bufCapacity < 256 ? 256 : bufCapacity;
+        int bufCapacity = parseLenth(config.getValue("bufferCapacity"), 32 * 1024);
+        this.bufferCapacity = bufCapacity < 8 * 1024 ? 8 * 1024 : bufCapacity;
         this.threads = config.getIntValue("threads", Runtime.getRuntime().availableProcessors() * 16);
         this.bufferPoolSize = config.getIntValue("bufferPoolSize", Runtime.getRuntime().availableProcessors() * 512);
         this.responsePoolSize = config.getIntValue("responsePoolSize", Runtime.getRuntime().availableProcessors() * 256);
@@ -201,7 +201,7 @@ public abstract class Server<K extends Serializable, C extends Context, R extend
         serverChannel.accept();
         final String threadName = "[" + Thread.currentThread().getName() + "] ";
         logger.info(threadName + this.getClass().getSimpleName() + ("TCP".equalsIgnoreCase(protocol) ? "" : ("." + protocol)) + " listen: " + address
-            + ", threads: " + threads + ", bufferCapacity: " + bufferCapacity + ", bufferPoolSize: " + bufferPoolSize + ", responsePoolSize: " + responsePoolSize
+            + ", threads: " + threads + ", bufferCapacity: " + bufferCapacity / 1024 + "K, bufferPoolSize: " + bufferPoolSize + ", responsePoolSize: " + responsePoolSize
             + ", started in " + (System.currentTimeMillis() - context.getServerStartTime()) + " ms");
     }
 
diff --git a/src/org/redkale/net/sncp/SncpServer.java b/src/org/redkale/net/sncp/SncpServer.java
index cb0043ed0..7ddb72e90 100644
--- a/src/org/redkale/net/sncp/SncpServer.java
+++ b/src/org/redkale/net/sncp/SncpServer.java
@@ -92,7 +92,7 @@ public class SncpServer extends Server<DLong, SncpContext, SncpRequest, SncpResp
         final int port = this.address.getPort();
         AtomicLong createBufferCounter = new AtomicLong();
         AtomicLong cycleBufferCounter = new AtomicLong();
-        final int rcapacity = Math.max(this.bufferCapacity, 4 * 1024);
+        final int rcapacity = Math.max(this.bufferCapacity, 8 * 1024);
         ObjectPool<ByteBuffer> bufferPool = new ObjectPool<>(createBufferCounter, cycleBufferCounter, this.bufferPoolSize,
             (Object... params) -> ByteBuffer.allocateDirect(rcapacity), null, (e) -> {
                 if (e == null || e.isReadOnly() || e.capacity() != rcapacity) return false;