diff --git a/src/Http/HttpSession.cpp b/src/Http/HttpSession.cpp
index 071f4e5f..7200fce7 100644
--- a/src/Http/HttpSession.cpp
+++ b/src/Http/HttpSession.cpp
@@ -103,6 +103,8 @@ get_mime_type(const char* name) {
 HttpSession::HttpSession(const Socket::Ptr &pSock) : TcpSession(pSock) {
 	//设置15秒发送超时时间
 	pSock->setSendTimeOutSecond(15);
+	//起始接收buffer缓存设置为4K，节省内存
+	pSock->setReadBuffer(std::make_shared<BufferRaw>(4 * 1024));
 
     GET_CONFIG_AND_REGISTER(string,rootPath,Http::kRootPath);
     _strPath = rootPath;
@@ -650,6 +652,9 @@ inline bool HttpSession::Handle_Req_POST(int64_t &content_len) {
 			return false;
 		};
 	}else{
+		//如果是post请求 并且totalContentLen数据超过maxReqSize，那么我们加大接收缓存提升性能
+		_sock->setReadBuffer(std::make_shared<BufferRaw>(256 * 1024));
+
 		//返回不固定长度的content
 		content_len = -1;
 		auto parserCopy = _parser;
diff --git a/src/Rtmp/RtmpSession.cpp b/src/Rtmp/RtmpSession.cpp
index b2a2c87d..fed023f4 100644
--- a/src/Rtmp/RtmpSession.cpp
+++ b/src/Rtmp/RtmpSession.cpp
@@ -37,6 +37,8 @@ RtmpSession::RtmpSession(const Socket::Ptr &pSock) : TcpSession(pSock) {
 	DebugL << get_peer_ip();
     //设置15秒发送超时时间
     pSock->setSendTimeOutSecond(15);
+    //起始接收buffer缓存设置为4K，节省内存
+    pSock->setReadBuffer(std::make_shared<BufferRaw>(4 * 1024));
 }
 
 RtmpSession::~RtmpSession() {
@@ -171,6 +173,8 @@ void RtmpSession::onCmd_publish(AMFDecoder &dec) {
         }
         _pPublisherSrc.reset(new RtmpToRtspMediaSource(_mediaInfo._vhost,_mediaInfo._app,_mediaInfo._streamid));
         _pPublisherSrc->setListener(dynamic_pointer_cast<MediaSourceEvent>(shared_from_this()));
+        //如果是rtmp推流客户端，那么加大TCP接收缓存，这样能提升接收性能
+        _sock->setReadBuffer(std::make_shared<BufferRaw>(256 * 1024));
     };
 
     weak_ptr<RtmpSession> weakSelf = dynamic_pointer_cast<RtmpSession>(shared_from_this());
diff --git a/src/Rtsp/RtspSession.cpp b/src/Rtsp/RtspSession.cpp
index 3bdd4459..2fe7fa0c 100644
--- a/src/Rtsp/RtspSession.cpp
+++ b/src/Rtsp/RtspSession.cpp
@@ -271,7 +271,7 @@ bool RtspSession::handleReq_RECORD(const Parser &parser){
 		SockUtil::setNoDelay(_sock->rawFD(),false);
 		if(_rtpType == Rtsp::RTP_TCP){
 			//如果是rtsp推流服务器，并且是TCP推流，那么加大TCP接收缓存，这样能提升接收性能
-			_sock->setReadBuffer(std::make_shared<BufferRaw>(128 * 1024));
+			_sock->setReadBuffer(std::make_shared<BufferRaw>(256 * 1024));
 		}
 		(*this) << SocketFlags(kSockFlags);
 	};