diff --git a/CMakeLists.txt b/CMakeLists.txt
index cb85679b..39c6c517 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -39,6 +39,7 @@ option(ENABLE_FAAC "Enable FAAC" OFF)
 option(ENABLE_FFMPEG "Enable FFmpeg" OFF)
 option(ENABLE_HLS "Enable HLS" ON)
 option(ENABLE_JEMALLOC_STATIC "Enable static linking to the jemalloc library" OFF)
+option(ENABLE_JEMALLOC_DUMP "Enable jemalloc to dump malloc statistics" OFF)
 option(ENABLE_MEM_DEBUG "Enable Memory Debug" OFF)
 option(ENABLE_MP4 "Enable MP4" ON)
 option(ENABLE_HLS_FMP4 "Enable HLS-FMP4" ON)
@@ -335,7 +336,11 @@ if(ENABLE_JEMALLOC_STATIC)
   if(NOT EXISTS ${DEP_ROOT_DIR})
     file(MAKE_DIRECTORY ${DEP_ROOT_DIR})
   endif()
-
+  if (ENABLE_JEMALLOC_DUMP)
+    set(ENABLE_JEMALLOC_STAT ON)
+  else ()
+    set(ENABLE_JEMALLOC_STAT OFF)
+  endif ()
   include(Jemalloc)
   include_directories(SYSTEM ${DEP_ROOT_DIR}/${JEMALLOC_NAME}/include/jemalloc)
   link_directories(${DEP_ROOT_DIR}/${JEMALLOC_NAME}/lib)
@@ -349,6 +354,12 @@ if(JEMALLOC_FOUND)
   message(STATUS "found library: ${JEMALLOC_LIBRARIES}")
   include_directories(${JEMALLOC_INCLUDE_DIR})
   update_cached_list(MK_LINK_LIBRARIES ${JEMALLOC_LIBRARIES})
+  add_definitions(-DUSE_JEMALLOC)
+  message(STATUS "jemalloc will be used to avoid memory fragmentation")
+  if (ENABLE_JEMALLOC_DUMP)
+    add_definitions(-DENABLE_JEMALLOC_DUMP)
+    message(STATUS "jemalloc will save memory usage statistics when the program exits")
+  endif ()
 endif()
 
 # 查找 openssl 是否安装
diff --git a/cmake/Jemalloc.cmake b/cmake/Jemalloc.cmake
index 94d46b64..38847e58 100644
--- a/cmake/Jemalloc.cmake
+++ b/cmake/Jemalloc.cmake
@@ -1,21 +1,34 @@
 # Download and build Jemalloc
 
-set(JEMALLOC_VERSION 5.2.1)
+set(JEMALLOC_VERSION 5.3.0)
 set(JEMALLOC_NAME jemalloc-${JEMALLOC_VERSION})
 set(JEMALLOC_TAR_PATH ${DEP_ROOT_DIR}/${JEMALLOC_NAME}.tar.bz2)
 
 list(APPEND jemalloc_CONFIG_ARGS --disable-initial-exec-tls)
-list(APPEND jemalloc_CONFIG_ARGS --without-export)
+#list(APPEND jemalloc_CONFIG_ARGS --without-export)
+if (ENABLE_JEMALLOC_STAT)
+    list(APPEND jemalloc_CONFIG_ARGS --enable-stats)
+    message(STATUS "Jemalloc stats enabled")
+else ()
 list(APPEND jemalloc_CONFIG_ARGS --disable-stats)
+    message(STATUS "Jemalloc stats disabled")
+endif ()
 list(APPEND jemalloc_CONFIG_ARGS --disable-libdl)
 #list(APPEND jemalloc_CONFIG_ARGS --disable-cxx)
 #list(APPEND jemalloc_CONFIG_ARGS --with-jemalloc-prefix=je_)
 #list(APPEND jemalloc_CONFIG_ARGS --enable-debug)
 
 if(NOT EXISTS ${JEMALLOC_TAR_PATH})
-    message(STATUS "Downloading ${JEMALLOC_NAME}...")
-    file(DOWNLOAD https://github.com/jemalloc/jemalloc/releases/download/${JEMALLOC_VERSION}/${JEMALLOC_NAME}.tar.bz2
-            ${JEMALLOC_TAR_PATH})
+    set(JEMALLOC_URL https://github.com/jemalloc/jemalloc/releases/download/${JEMALLOC_VERSION}/${JEMALLOC_NAME}.tar.bz2)
+    message(STATUS "Downloading ${JEMALLOC_NAME} from ${JEMALLOC_URL}")
+    file(DOWNLOAD ${JEMALLOC_URL} ${JEMALLOC_TAR_PATH} SHOW_PROGRESS STATUS JEMALLOC_DOWNLOAD_STATUS LOG JEMALLOC_DOWNLOAD_LOG)
+    list(GET JEMALLOC_DOWNLOAD_STATUS 0 JEMALLOC_DOWNLOAD_STATUS_CODE)
+    if(NOT JEMALLOC_DOWNLOAD_STATUS_CODE EQUAL 0)
+        file(REMOVE ${JEMALLOC_TAR_PATH})
+        message(STATUS "${JEMALLOC_DOWNLOAD_LOG}")
+        message(FATAL_ERROR "${JEMALLOC_NAME} download failed! error is ${JEMALLOC_DOWNLOAD_STATUS}")
+        return()
+    endif ()
 endif()
 
 SET( DIR_CONTAINING_JEMALLOC ${DEP_ROOT_DIR}/${JEMALLOC_NAME} )