diff --git a/server/WebApi.cpp b/server/WebApi.cpp
index 7c0006db..ead00000 100755
--- a/server/WebApi.cpp
+++ b/server/WebApi.cpp
@@ -219,6 +219,10 @@ extern std::vector<size_t> getBlockTypeSize();
 extern uint64_t getTotalMemBlockByType(int type);
 extern uint64_t getThisThreadMemBlockByType(int type) ;
 
+namespace mediakit {
+extern ThreadPool &getMP4Thread();
+extern ThreadPool &getHlsThread();
+}
 static inline void addHttpListener(){
     GET_CONFIG(bool, api_debug, API::kApiDebug);
     //注册监听kBroadcastHttpRequest事件
@@ -403,7 +407,7 @@ void getStatisticJson(const function<void(Value &val)> &cb) {
         val["totalMemBlockTypeCount"] = str;
     }
 
-    auto thread_size = EventPollerPool::Instance().getExecutorSize() + WorkThreadPool::Instance().getExecutorSize();
+    auto thread_size = 2 + EventPollerPool::Instance().getExecutorSize() + WorkThreadPool::Instance().getExecutorSize();
     std::shared_ptr<vector<Value> > thread_mem_info = std::make_shared<vector<Value> >(thread_size);
 
     shared_ptr<void> finished(nullptr, [thread_mem_info, cb, obj](void *) {
@@ -441,6 +445,8 @@ void getStatisticJson(const function<void(Value &val)> &cb) {
     };
     EventPollerPool::Instance().for_each(lam1);
     WorkThreadPool::Instance().for_each(lam1);
+    lam0(getMP4Thread());
+    lam0(getHlsThread());
 #else
     cb(*obj);
 #endif
diff --git a/src/Record/HlsRecorder.cpp b/src/Record/HlsRecorder.cpp
new file mode 100644
index 00000000..76d8ca3b
--- /dev/null
+++ b/src/Record/HlsRecorder.cpp
@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2016 The ZLMediaKit project authors. All Rights Reserved.
+ *
+ * This file is part of ZLMediaKit(https://github.com/xia-chu/ZLMediaKit).
+ *
+ * Use of this source code is governed by MIT license that can be found in the
+ * LICENSE file in the root of the source tree. All contributing project authors
+ * may be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "HlsRecorder.h"
+
+namespace mediakit {
+
+ThreadPool &getHlsThread() {
+    static ThreadPool ret(1, ThreadPool::PRIORITY_LOWEST, true);
+    static onceToken s_token([]() {
+        ret.async([]() {
+            setThreadName("hls thread");
+        });
+    });
+    return ret;
+}
+
+bool HlsRecorder::inputFrame(const Frame::Ptr &frame) {
+    auto ptr = shared_from_this();
+    auto cached_frame = Frame::getCacheAbleFrame(frame);
+    getHlsThread().async([ptr, cached_frame]() {
+        ptr->inputFrame_l(cached_frame);
+    });
+    return true;
+}
+
+}//namespace mediakit
diff --git a/src/Record/HlsRecorder.h b/src/Record/HlsRecorder.h
index 4be987a4..d0416f5e 100644
--- a/src/Record/HlsRecorder.h
+++ b/src/Record/HlsRecorder.h
@@ -63,7 +63,9 @@ public:
         return hls_demand ? (_clear_cache ? true : _enabled) : true;
     }
 
-    bool inputFrame(const Frame::Ptr &frame) override {
+    bool inputFrame(const Frame::Ptr &frame) override;
+
+    bool inputFrame_l(const Frame::Ptr &frame) {
         GET_CONFIG(bool, hls_demand, General::kHlsDemand);
         if (_clear_cache && hls_demand) {
             _clear_cache = false;
diff --git a/src/Record/MP4Recorder.cpp b/src/Record/MP4Recorder.cpp
index 5ae7d807..72973ceb 100644
--- a/src/Record/MP4Recorder.cpp
+++ b/src/Record/MP4Recorder.cpp
@@ -20,6 +20,16 @@ using namespace toolkit;
 
 namespace mediakit {
 
+ThreadPool &getMP4Thread() {
+    static ThreadPool ret(1, ThreadPool::PRIORITY_LOWEST, true);
+    static onceToken s_token([]() {
+        ret.async([]() {
+            setThreadName("mp4 thread");
+        });
+    });
+    return ret;
+}
+
 MP4Recorder::MP4Recorder(const string &path, const string &vhost, const string &app, const string &stream_id, size_t max_second) {
     _folder_path = path;
     /////record 业务逻辑//////
@@ -67,7 +77,7 @@ void MP4Recorder::asyncClose() {
     auto full_path_tmp = _full_path_tmp;
     auto full_path = _full_path;
     auto info = _info;
-    WorkThreadPool::Instance().getExecutor()->async([muxer, full_path_tmp, full_path, info]() mutable {
+    getMP4Thread().async([muxer, full_path_tmp, full_path, info]() mutable {
         //获取文件录制时间，放在关闭mp4之前是为了忽略关闭mp4执行时间
         info.time_len = (float) (::time(NULL) - info.start_time);
         //关闭mp4非常耗时，所以要放在后台线程执行
@@ -112,7 +122,12 @@ bool MP4Recorder::inputFrame(const Frame::Ptr &frame) {
 
     if (_muxer) {
         //生成mp4文件
-        return _muxer->inputFrame(frame);
+        auto muxer = _muxer;
+        auto cached_frame = Frame::getCacheAbleFrame(frame);
+        getMP4Thread().async([muxer, cached_frame]() {
+            return muxer->inputFrame(cached_frame);
+        });
+        return true;
     }
     return false;
 }