diff --git a/frontend/CMakeLists.txt b/frontend/CMakeLists.txt
index 75773a4..25d3016 100644
--- a/frontend/CMakeLists.txt
+++ b/frontend/CMakeLists.txt
@@ -91,6 +91,7 @@ target_link_libraries(ukui-search PRIVATE
         chinese-segmentation
         kysdk-waylandhelper
         qtsingleapplication
+        tcmalloc_minimal
         )
 
 target_include_directories(ukui-search PRIVATE
diff --git a/frontend/mainwindow.cpp b/frontend/mainwindow.cpp
index 83e2826..c9c847e 100644
--- a/frontend/mainwindow.cpp
+++ b/frontend/mainwindow.cpp
@@ -32,6 +32,7 @@
 #include <KWindowEffects>
 #include <KWindowSystem>
 #include <QtX11Extras/QX11Info>
+#include <gperftools/malloc_extension.h>
 #include "ukuistylehelper/ukuistylehelper.h"
 #include "windowmanager/windowmanager.h"
 #include "global-settings.h"
@@ -374,6 +375,15 @@ bool MainWindow::tryHideMainwindow()
         Q_EMIT m_searchResultPage->stopSearch();
         this->clearSearchResult();
         this->hide();
+        if(!m_releaseFreeMemoryTimerWorking) {
+            m_releaseFreeMemoryTimerWorking = true;
+            QTimer::singleShot(2000, this, [&](){
+                if(!this->isVisible()) {
+                    MallocExtension::instance()->ReleaseFreeMemory();
+                }
+                m_releaseFreeMemoryTimerWorking = false;
+            });
+        }
         return true;
     } else {
         //有上层弹窗未关闭，不允许隐藏主界面
diff --git a/frontend/mainwindow.h b/frontend/mainwindow.h
index 01189e6..7ced129 100644
--- a/frontend/mainwindow.h
+++ b/frontend/mainwindow.h
@@ -115,6 +115,7 @@ private:
     QSettings *m_settings = nullptr;
     AppWidgetPlugin *m_appWidgetPlugin = nullptr;
     bool m_isIndexSearch = false;
+    bool m_releaseFreeMemoryTimerWorking = false;
 };
 }
 
diff --git a/frontend/ukui-search-gui.cpp b/frontend/ukui-search-gui.cpp
index 9cd0da3..ecaa4ae 100644
--- a/frontend/ukui-search-gui.cpp
+++ b/frontend/ukui-search-gui.cpp
@@ -22,6 +22,7 @@
 #include <QTranslator>
 #include <QLocale>
 #include <QApplication>
+#include <gperftools/malloc_extension.h>
 #include <QCommandLineParser>
 #include "plugin-manager.h"
 #include "icon-loader.h"
@@ -71,6 +72,7 @@ UkuiSearchGui::UkuiSearchGui(int &argc,
         }
 
         qDebug() << "Loading plugins and resources...";
+        MallocExtension::Initialize();
         SearchPluginManager::getInstance();
         PluginManager::getInstance();
 
diff --git a/translations/ukui-search/appwidget/search_bo_CN.ts b/translations/ukui-search/appwidget/search_bo_CN.ts
index b0ba42a..5e474d2 100644
--- a/translations/ukui-search/appwidget/search_bo_CN.ts
+++ b/translations/ukui-search/appwidget/search_bo_CN.ts
@@ -50,12 +50,12 @@
 <context>
     <name>UkuiSearch::MainWindow</name>
     <message>
-        <location filename="../../../frontend/mainwindow.cpp" line="72"/>
+        <location filename="../../../frontend/mainwindow.cpp" line="73"/>
         <source>ukui-search</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../frontend/mainwindow.cpp" line="80"/>
+        <location filename="../../../frontend/mainwindow.cpp" line="81"/>
         <source>Global Search</source>
         <translation type="unfinished"></translation>
     </message>
@@ -71,32 +71,32 @@
 <context>
     <name>UkuiSearch::UkuiSearchGui</name>
     <message>
-        <location filename="../../../frontend/ukui-search-gui.cpp" line="109"/>
+        <location filename="../../../frontend/ukui-search-gui.cpp" line="111"/>
         <source>Quit ukui-search application</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../frontend/ukui-search-gui.cpp" line="112"/>
+        <location filename="../../../frontend/ukui-search-gui.cpp" line="114"/>
         <source>Show main window</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../frontend/ukui-search-gui.cpp" line="115"/>
+        <location filename="../../../frontend/ukui-search-gui.cpp" line="117"/>
         <source>unregister a plugin with &lt;pluginName&gt;</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../frontend/ukui-search-gui.cpp" line="118"/>
+        <location filename="../../../frontend/ukui-search-gui.cpp" line="120"/>
         <source>register a plugin with &lt;pluginName&gt;</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../frontend/ukui-search-gui.cpp" line="121"/>
+        <location filename="../../../frontend/ukui-search-gui.cpp" line="123"/>
         <source>move &lt;pluginName&gt; to the target pos</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../frontend/ukui-search-gui.cpp" line="124"/>
+        <location filename="../../../frontend/ukui-search-gui.cpp" line="126"/>
         <source>move plugin to &lt;index&gt;</source>
         <translation type="unfinished"></translation>
     </message>
diff --git a/translations/ukui-search/appwidget/search_mn.ts b/translations/ukui-search/appwidget/search_mn.ts
index 63cabce..c1619e0 100644
--- a/translations/ukui-search/appwidget/search_mn.ts
+++ b/translations/ukui-search/appwidget/search_mn.ts
@@ -50,12 +50,12 @@
 <context>
     <name>UkuiSearch::MainWindow</name>
     <message>
-        <location filename="../../../frontend/mainwindow.cpp" line="72"/>
+        <location filename="../../../frontend/mainwindow.cpp" line="73"/>
         <source>ukui-search</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../frontend/mainwindow.cpp" line="80"/>
+        <location filename="../../../frontend/mainwindow.cpp" line="81"/>
         <source>Global Search</source>
         <translation type="unfinished"></translation>
     </message>
@@ -71,32 +71,32 @@
 <context>
     <name>UkuiSearch::UkuiSearchGui</name>
     <message>
-        <location filename="../../../frontend/ukui-search-gui.cpp" line="109"/>
+        <location filename="../../../frontend/ukui-search-gui.cpp" line="111"/>
         <source>Quit ukui-search application</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../frontend/ukui-search-gui.cpp" line="112"/>
+        <location filename="../../../frontend/ukui-search-gui.cpp" line="114"/>
         <source>Show main window</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../frontend/ukui-search-gui.cpp" line="115"/>
+        <location filename="../../../frontend/ukui-search-gui.cpp" line="117"/>
         <source>unregister a plugin with &lt;pluginName&gt;</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../frontend/ukui-search-gui.cpp" line="118"/>
+        <location filename="../../../frontend/ukui-search-gui.cpp" line="120"/>
         <source>register a plugin with &lt;pluginName&gt;</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../frontend/ukui-search-gui.cpp" line="121"/>
+        <location filename="../../../frontend/ukui-search-gui.cpp" line="123"/>
         <source>move &lt;pluginName&gt; to the target pos</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../../frontend/ukui-search-gui.cpp" line="124"/>
+        <location filename="../../../frontend/ukui-search-gui.cpp" line="126"/>
         <source>move plugin to &lt;index&gt;</source>
         <translation type="unfinished"></translation>
     </message>
diff --git a/translations/ukui-search/bo_CN.ts b/translations/ukui-search/bo_CN.ts
index 9bcea0a..00ece4f 100644
--- a/translations/ukui-search/bo_CN.ts
+++ b/translations/ukui-search/bo_CN.ts
@@ -57,12 +57,12 @@
 <context>
     <name>UkuiSearch::MainWindow</name>
     <message>
-        <location filename="../../frontend/mainwindow.cpp" line="72"/>
+        <location filename="../../frontend/mainwindow.cpp" line="73"/>
         <source>ukui-search</source>
         <translation>འཚོལ་བཤེར།</translation>
     </message>
     <message>
-        <location filename="../../frontend/mainwindow.cpp" line="80"/>
+        <location filename="../../frontend/mainwindow.cpp" line="81"/>
         <source>Global Search</source>
         <translation>འཚོལ་བཤེར།</translation>
     </message>
@@ -205,32 +205,32 @@
 <context>
     <name>UkuiSearch::UkuiSearchGui</name>
     <message>
-        <location filename="../../frontend/ukui-search-gui.cpp" line="109"/>
+        <location filename="../../frontend/ukui-search-gui.cpp" line="111"/>
         <source>Quit ukui-search application</source>
         <translation>ཉེར་སྤྱོད་གོ་རིམ་ལས་ཕྱིར་འཐེན་བྱ།</translation>
     </message>
     <message>
-        <location filename="../../frontend/ukui-search-gui.cpp" line="112"/>
+        <location filename="../../frontend/ukui-search-gui.cpp" line="114"/>
         <source>Show main window</source>
         <translation>སྒེའུ་ཁུང་གཙོ་བོ་མངོན་པ།</translation>
     </message>
     <message>
-        <location filename="../../frontend/ukui-search-gui.cpp" line="115"/>
+        <location filename="../../frontend/ukui-search-gui.cpp" line="117"/>
         <source>unregister a plugin with &lt;pluginName&gt;</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../frontend/ukui-search-gui.cpp" line="118"/>
+        <location filename="../../frontend/ukui-search-gui.cpp" line="120"/>
         <source>register a plugin with &lt;pluginName&gt;</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../frontend/ukui-search-gui.cpp" line="121"/>
+        <location filename="../../frontend/ukui-search-gui.cpp" line="123"/>
         <source>move &lt;pluginName&gt; to the target pos</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../frontend/ukui-search-gui.cpp" line="124"/>
+        <location filename="../../frontend/ukui-search-gui.cpp" line="126"/>
         <source>move plugin to &lt;index&gt;</source>
         <translation type="unfinished"></translation>
     </message>
diff --git a/translations/ukui-search/mn.ts b/translations/ukui-search/mn.ts
index 82e2288..abaae59 100644
--- a/translations/ukui-search/mn.ts
+++ b/translations/ukui-search/mn.ts
@@ -57,12 +57,12 @@
 <context>
     <name>UkuiSearch::MainWindow</name>
     <message>
-        <location filename="../../frontend/mainwindow.cpp" line="72"/>
+        <location filename="../../frontend/mainwindow.cpp" line="73"/>
         <source>ukui-search</source>
         <translation>ᠬᠠᠢᠯᠲᠠ</translation>
     </message>
     <message>
-        <location filename="../../frontend/mainwindow.cpp" line="80"/>
+        <location filename="../../frontend/mainwindow.cpp" line="81"/>
         <source>Global Search</source>
         <translation>ᠬᠠᠢᠯᠲᠠ</translation>
     </message>
@@ -205,32 +205,32 @@
 <context>
     <name>UkuiSearch::UkuiSearchGui</name>
     <message>
-        <location filename="../../frontend/ukui-search-gui.cpp" line="109"/>
+        <location filename="../../frontend/ukui-search-gui.cpp" line="111"/>
         <source>Quit ukui-search application</source>
         <translation>ᠬᠠᠢᠯᠲᠠ᠎ᠶᠢᠨ ᠬᠡᠷᠡᠭᠯᠡᠯᠳᠡ᠎ᠡᠴᠡ ᠪᠤᠴᠠᠵᠤ ᠭᠠᠷᠬᠤ</translation>
     </message>
     <message>
-        <location filename="../../frontend/ukui-search-gui.cpp" line="112"/>
+        <location filename="../../frontend/ukui-search-gui.cpp" line="114"/>
         <source>Show main window</source>
         <translation>ᠭᠤᠤᠯ ᠨᠢᠭᠤᠷ ᠬᠠᠭᠤᠳᠠᠰᠤ᠎ᠶᠢ ᠢᠯᠡᠷᠡᠬᠦᠯᠬᠦ᠌</translation>
     </message>
     <message>
-        <location filename="../../frontend/ukui-search-gui.cpp" line="115"/>
+        <location filename="../../frontend/ukui-search-gui.cpp" line="117"/>
         <source>unregister a plugin with &lt;pluginName&gt;</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../frontend/ukui-search-gui.cpp" line="118"/>
+        <location filename="../../frontend/ukui-search-gui.cpp" line="120"/>
         <source>register a plugin with &lt;pluginName&gt;</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../frontend/ukui-search-gui.cpp" line="121"/>
+        <location filename="../../frontend/ukui-search-gui.cpp" line="123"/>
         <source>move &lt;pluginName&gt; to the target pos</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../frontend/ukui-search-gui.cpp" line="124"/>
+        <location filename="../../frontend/ukui-search-gui.cpp" line="126"/>
         <source>move plugin to &lt;index&gt;</source>
         <translation type="unfinished"></translation>
     </message>
diff --git a/translations/ukui-search/tr.ts b/translations/ukui-search/tr.ts
index 2602e94..af30fcf 100644
--- a/translations/ukui-search/tr.ts
+++ b/translations/ukui-search/tr.ts
@@ -357,12 +357,12 @@
 <context>
     <name>UkuiSearch::MainWindow</name>
     <message>
-        <location filename="../../frontend/mainwindow.cpp" line="72"/>
+        <location filename="../../frontend/mainwindow.cpp" line="73"/>
         <source>ukui-search</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../frontend/mainwindow.cpp" line="80"/>
+        <location filename="../../frontend/mainwindow.cpp" line="81"/>
         <source>Global Search</source>
         <translation type="unfinished">Genel Arama</translation>
     </message>
@@ -541,32 +541,32 @@
 <context>
     <name>UkuiSearch::UkuiSearchGui</name>
     <message>
-        <location filename="../../frontend/ukui-search-gui.cpp" line="109"/>
+        <location filename="../../frontend/ukui-search-gui.cpp" line="111"/>
         <source>Quit ukui-search application</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../frontend/ukui-search-gui.cpp" line="112"/>
+        <location filename="../../frontend/ukui-search-gui.cpp" line="114"/>
         <source>Show main window</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../frontend/ukui-search-gui.cpp" line="115"/>
+        <location filename="../../frontend/ukui-search-gui.cpp" line="117"/>
         <source>unregister a plugin with &lt;pluginName&gt;</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../frontend/ukui-search-gui.cpp" line="118"/>
+        <location filename="../../frontend/ukui-search-gui.cpp" line="120"/>
         <source>register a plugin with &lt;pluginName&gt;</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../frontend/ukui-search-gui.cpp" line="121"/>
+        <location filename="../../frontend/ukui-search-gui.cpp" line="123"/>
         <source>move &lt;pluginName&gt; to the target pos</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../frontend/ukui-search-gui.cpp" line="124"/>
+        <location filename="../../frontend/ukui-search-gui.cpp" line="126"/>
         <source>move plugin to &lt;index&gt;</source>
         <translation type="unfinished"></translation>
     </message>
diff --git a/translations/ukui-search/zh_CN.ts b/translations/ukui-search/zh_CN.ts
index 56d4c51..4264438 100644
--- a/translations/ukui-search/zh_CN.ts
+++ b/translations/ukui-search/zh_CN.ts
@@ -119,12 +119,12 @@
 <context>
     <name>UkuiSearch::MainWindow</name>
     <message>
-        <location filename="../../frontend/mainwindow.cpp" line="72"/>
+        <location filename="../../frontend/mainwindow.cpp" line="73"/>
         <source>ukui-search</source>
         <translation>搜索</translation>
     </message>
     <message>
-        <location filename="../../frontend/mainwindow.cpp" line="80"/>
+        <location filename="../../frontend/mainwindow.cpp" line="81"/>
         <source>Global Search</source>
         <translation>搜索</translation>
     </message>
@@ -351,32 +351,32 @@
 <context>
     <name>UkuiSearch::UkuiSearchGui</name>
     <message>
-        <location filename="../../frontend/ukui-search-gui.cpp" line="109"/>
+        <location filename="../../frontend/ukui-search-gui.cpp" line="111"/>
         <source>Quit ukui-search application</source>
         <translation>退出搜索应用</translation>
     </message>
     <message>
-        <location filename="../../frontend/ukui-search-gui.cpp" line="112"/>
+        <location filename="../../frontend/ukui-search-gui.cpp" line="114"/>
         <source>Show main window</source>
         <translation>显示主页面</translation>
     </message>
     <message>
-        <location filename="../../frontend/ukui-search-gui.cpp" line="115"/>
+        <location filename="../../frontend/ukui-search-gui.cpp" line="117"/>
         <source>unregister a plugin with &lt;pluginName&gt;</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../frontend/ukui-search-gui.cpp" line="118"/>
+        <location filename="../../frontend/ukui-search-gui.cpp" line="120"/>
         <source>register a plugin with &lt;pluginName&gt;</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../frontend/ukui-search-gui.cpp" line="121"/>
+        <location filename="../../frontend/ukui-search-gui.cpp" line="123"/>
         <source>move &lt;pluginName&gt; to the target pos</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../../frontend/ukui-search-gui.cpp" line="124"/>
+        <location filename="../../frontend/ukui-search-gui.cpp" line="126"/>
         <source>move plugin to &lt;index&gt;</source>
         <translation type="unfinished"></translation>
     </message>