diff --git a/server/WebApi.cpp b/server/WebApi.cpp
index 1916ed06..37962db3 100755
--- a/server/WebApi.cpp
+++ b/server/WebApi.cpp
@@ -245,6 +245,10 @@ 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 void *web_api_tag = nullptr;
 
 static inline void addHttpListener(){
@@ -334,7 +338,7 @@ public:
         return _map.erase(key);
     }
 
-    size_t size() { 
+    size_t size() {
         std::lock_guard<std::recursive_mutex> lck(_mtx);
         return _map.size();
     }
@@ -587,7 +591,7 @@ 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 *) {
@@ -626,6 +630,8 @@ 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
@@ -749,7 +755,7 @@ void addStreamPusherProxy(const string &schema,
  * Install api interface
  * All apis support GET and POST methods
  * POST method parameters support application/json and application/x-www-form-urlencoded methods
- 
+
  * [AUTO-TRANSLATED:62e68c43]
  */
 void installWebApi() {
diff --git a/src/Record/HlsRecorder.cpp b/src/Record/HlsRecorder.cpp
new file mode 100644
index 00000000..8aab997f
--- /dev/null
+++ b/src/Record/HlsRecorder.cpp
@@ -0,0 +1,26 @@
+/*
+ * 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"
+using namespace toolkit;
+
+namespace mediakit {
+
+ThreadPool &getHlsThread() {
+    static ThreadPool ret(1, ThreadPool::PRIORITY_LOWEST, true);
+    static onceToken s_token([]() {
+        ret.async([]() {
+            setThreadName("hls thread");
+        });
+    });
+    return ret;
+}
+
+}//namespace mediakit
diff --git a/src/Record/HlsRecorder.h b/src/Record/HlsRecorder.h
index 1810aec5..9ae5c333 100644
--- a/src/Record/HlsRecorder.h
+++ b/src/Record/HlsRecorder.h
@@ -15,9 +15,12 @@
 #include "MPEG.h"
 #include "MP4Muxer.h"
 #include "Common/config.h"
+#include "Thread/ThreadPool.h"
 
 namespace mediakit {
 
+toolkit::ThreadPool& getHlsThread();
+
 template <typename Muxer>
 class HlsRecorderBase : public MediaSourceEventInterceptor, public Muxer, public std::enable_shared_from_this<HlsRecorderBase<Muxer> > {
 public:
@@ -58,6 +61,15 @@ public:
     }
 
     bool inputFrame(const Frame::Ptr &frame) override {
+        auto ptr = this->shared_from_this();
+        auto cached_frame = Frame::getCacheAbleFrame(frame);
+        getHlsThread().async([ptr, cached_frame]() {
+            ptr->inputFrame_l(cached_frame);
+        });
+        return true;
+    }
+
+    bool inputFrame_l(const Frame::Ptr &frame) {
         if (_clear_cache && _option.hls_demand) {
             _clear_cache = false;
             // 清空旧的m3u8索引文件于ts切片  [AUTO-TRANSLATED:a4ce0664]
diff --git a/src/Record/MP4Recorder.cpp b/src/Record/MP4Recorder.cpp
index 7576ba6a..76a17cb5 100644
--- a/src/Record/MP4Recorder.cpp
+++ b/src/Record/MP4Recorder.cpp
@@ -22,6 +22,16 @@ 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 MediaTuple &tuple, const string &path, size_t max_second) {
     _folder_path = path;
     // ///record 业务逻辑//////  [AUTO-TRANSLATED:2e78931a]
@@ -78,7 +88,7 @@ void MP4Recorder::asyncClose() {
     auto full_path = _full_path;
     auto info = _info;
     TraceL << "Start close tmp mp4 file: " << full_path_tmp;
-    WorkThreadPool::Instance().getExecutor()->async([muxer, full_path_tmp, full_path, info]() mutable {
+    getMP4Thread().async([muxer, full_path_tmp, full_path, info]() mutable {
         info.time_len = muxer->getDuration() / 1000.0f;
         // 关闭mp4可能非常耗时，所以要放在后台线程执行  [AUTO-TRANSLATED:a7378a11]
         // Closing mp4 can be very time-consuming, so it should be executed in the background thread
@@ -131,7 +141,7 @@ bool MP4Recorder::inputFrame(const Frame::Ptr &frame) {
             // In the case of b-frames, the dts timestamp may regress
             _last_dts = MIN(frame->dts(), _last_dts);
         }
-        
+
         auto duration = 5u; // 默认至少一帧5ms
         if (frame->dts() > 0 && frame->dts() > _last_dts) {
             duration = MAX(duration, frame->dts() - _last_dts);
@@ -153,7 +163,12 @@ bool MP4Recorder::inputFrame(const Frame::Ptr &frame) {
     if (_muxer) {
         // 生成mp4文件  [AUTO-TRANSLATED:76a8d77c]
         // Generate mp4 file
-        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;
 }