diff --git a/V2rayNG/app/src/main/java/com/v2ray/ang/AppConfig.kt b/V2rayNG/app/src/main/java/com/v2ray/ang/AppConfig.kt
index b9ecf827..adf8663c 100644
--- a/V2rayNG/app/src/main/java/com/v2ray/ang/AppConfig.kt
+++ b/V2rayNG/app/src/main/java/com/v2ray/ang/AppConfig.kt
@@ -148,6 +148,7 @@ object AppConfig {
     const val MSG_MEASURE_CONFIG = 7
     const val MSG_MEASURE_CONFIG_SUCCESS = 71
     const val MSG_MEASURE_CONFIG_CANCEL = 72
+    const val MSG_MEASURE_CONFIG_FINISH = 73
 
     /** Notification channel IDs and names. */
     const val RAY_NG_CHANNEL_ID = "RAY_NG_M_CH_ID"
diff --git a/V2rayNG/app/src/main/java/com/v2ray/ang/service/V2RayTestService.kt b/V2rayNG/app/src/main/java/com/v2ray/ang/service/V2RayTestService.kt
index 8d559441..f441af2b 100644
--- a/V2rayNG/app/src/main/java/com/v2ray/ang/service/V2RayTestService.kt
+++ b/V2rayNG/app/src/main/java/com/v2ray/ang/service/V2RayTestService.kt
@@ -3,6 +3,7 @@ package com.v2ray.ang.service
 import android.app.Service
 import android.content.Intent
 import android.os.IBinder
+import com.v2ray.ang.AppConfig
 import com.v2ray.ang.AppConfig.MSG_MEASURE_CONFIG
 import com.v2ray.ang.AppConfig.MSG_MEASURE_CONFIG_CANCEL
 import com.v2ray.ang.AppConfig.MSG_MEASURE_CONFIG_SUCCESS
@@ -15,16 +16,26 @@ import com.v2ray.ang.handler.V2rayConfigManager
 import com.v2ray.ang.util.MessageUtil
 import com.v2ray.ang.util.Utils
 import go.Seq
+import kotlinx.coroutines.CoroutineName
 import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Job
-import kotlinx.coroutines.asCoroutineDispatcher
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.SupervisorJob
 import kotlinx.coroutines.cancelChildren
 import kotlinx.coroutines.launch
 import libv2ray.Libv2ray
-import java.util.concurrent.Executors
+import java.util.concurrent.atomic.AtomicInteger
 
 class V2RayTestService : Service() {
-    private val realTestScope by lazy { CoroutineScope(Executors.newFixedThreadPool(Runtime.getRuntime().availableProcessors()).asCoroutineDispatcher()) }
+    private val realTestJob = SupervisorJob()
+    private val realDispatcher = Dispatchers.IO.limitedParallelism(
+        Runtime.getRuntime().availableProcessors() * 3
+    )
+    private val realTestScope = CoroutineScope(
+        realTestJob + realDispatcher + CoroutineName("RealTest")
+    )
+
+    // simple counter for currently running tasks
+    private val realTestRunningCount = AtomicInteger(0)
 
     /**
      * Initializes the V2Ray environment.
@@ -47,13 +58,19 @@ class V2RayTestService : Service() {
             MSG_MEASURE_CONFIG -> {
                 val guid = intent.serializable<String>("content") ?: ""
                 realTestScope.launch {
-                    val result = startRealPing(guid)
-                    MessageUtil.sendMsg2UI(this@V2RayTestService, MSG_MEASURE_CONFIG_SUCCESS, Pair(guid, result))
+                    realTestRunningCount.incrementAndGet()
+                    try {
+                        val result = startRealPing(guid)
+                        MessageUtil.sendMsg2UI(this@V2RayTestService, MSG_MEASURE_CONFIG_SUCCESS, Pair(guid, result))
+                    } finally {
+                        val left = realTestRunningCount.decrementAndGet()
+                        MessageUtil.sendMsg2UI(this@V2RayTestService, AppConfig.MSG_MEASURE_CONFIG_FINISH, left.toString())
+                    }
                 }
             }
 
             MSG_MEASURE_CONFIG_CANCEL -> {
-                realTestScope.coroutineContext[Job]?.cancelChildren()
+                realTestJob.cancelChildren()
             }
         }
         return super.onStartCommand(intent, flags, startId)
@@ -68,6 +85,14 @@ class V2RayTestService : Service() {
         return null
     }
 
+    /**
+     * Cleans up resources when the service is destroyed.
+     */
+    override fun onDestroy() {
+        super.onDestroy()
+        realTestJob.cancel()
+    }
+
     /**
      * Starts the real ping test.
      * @param guid The GUID of the configuration.
diff --git a/V2rayNG/app/src/main/java/com/v2ray/ang/viewmodel/MainViewModel.kt b/V2rayNG/app/src/main/java/com/v2ray/ang/viewmodel/MainViewModel.kt
index e47c6cb9..79293a1a 100644
--- a/V2rayNG/app/src/main/java/com/v2ray/ang/viewmodel/MainViewModel.kt
+++ b/V2rayNG/app/src/main/java/com/v2ray/ang/viewmodel/MainViewModel.kt
@@ -445,6 +445,12 @@ class MainViewModel(application: Application) : AndroidViewModel(application) {
                     MmkvManager.encodeServerTestDelayMillis(resultPair.first, resultPair.second)
                     updateListAction.value = getPosition(resultPair.first)
                 }
+
+                AppConfig.MSG_MEASURE_CONFIG_FINISH -> {
+                    val content = intent.getStringExtra("content")
+                    updateTestResultAction.value =
+                        getApplication<AngApplication>().getString(R.string.connection_runing_task_left, content)
+                }
             }
         }
     }
diff --git a/V2rayNG/app/src/main/res/values-ar/strings.xml b/V2rayNG/app/src/main/res/values-ar/strings.xml
index 37f2cd55..c46b9f70 100644
--- a/V2rayNG/app/src/main/res/values-ar/strings.xml
+++ b/V2rayNG/app/src/main/res/values-ar/strings.xml
@@ -316,6 +316,7 @@
     <string name="connection_test_error_status_code">رمز الخطأ: #%d</string>
     <string name="connection_connected">متصل، انقر للتحقق من الاتصال</string>
     <string name="connection_not_connected">غير متصل</string>
+    <string name="connection_runing_task_left">Number of running test tasks: %s</string>
 
     <string name="import_subscription_success">تم استيراد الاشتراك بنجاح</string>
     <string name="import_subscription_failure">فشل استيراد الاشتراك</string>
diff --git a/V2rayNG/app/src/main/res/values-bn/strings.xml b/V2rayNG/app/src/main/res/values-bn/strings.xml
index ae5d7947..c71baf49 100644
--- a/V2rayNG/app/src/main/res/values-bn/strings.xml
+++ b/V2rayNG/app/src/main/res/values-bn/strings.xml
@@ -315,6 +315,7 @@
     <string name="connection_test_error_status_code">ত্রুটি কোড: #%d</string>
     <string name="connection_connected">সংযুক্ত, সংযোগ পরীক্ষা করতে ট্যাপ করুন</string>
     <string name="connection_not_connected">সংযুক্ত নয়</string>
+    <string name="connection_runing_task_left">Number of running test tasks: %s</string>
 
     <string name="import_subscription_success">সাবস্ক্রিপশন সফলভাবে আমদানি করা হয়েছে</string>
     <string name="import_subscription_failure">সাবস্ক্রিপশন আমদানি ব্যর্থ</string>
diff --git a/V2rayNG/app/src/main/res/values-bqi-rIR/strings.xml b/V2rayNG/app/src/main/res/values-bqi-rIR/strings.xml
index 7beadefe..1254629a 100644
--- a/V2rayNG/app/src/main/res/values-bqi-rIR/strings.xml
+++ b/V2rayNG/app/src/main/res/values-bqi-rIR/strings.xml
@@ -324,6 +324,7 @@
     <string name="connection_test_error_status_code">کود ختا: #%d</string>
     <string name="connection_connected">منپیز هڌ، سی واجۊری کیلیک کوݩ</string>
     <string name="connection_not_connected">منپیز نؽڌ</string>
+    <string name="connection_runing_task_left">Number of running test tasks: %s</string>
 
     <string name="import_subscription_success">اشتراک وا مووفقیت زفت زابی</string>
     <string name="import_subscription_failure">اشتراک زفت نوابی</string>
diff --git a/V2rayNG/app/src/main/res/values-fa/strings.xml b/V2rayNG/app/src/main/res/values-fa/strings.xml
index 46890040..228f8a84 100644
--- a/V2rayNG/app/src/main/res/values-fa/strings.xml
+++ b/V2rayNG/app/src/main/res/values-fa/strings.xml
@@ -321,6 +321,7 @@
     <string name="connection_test_error_status_code">کد خطا: #%d</string>
     <string name="connection_connected">متصل است، برای بررسی اتصال ضربه بزنید</string>
     <string name="connection_not_connected">متصل نیست</string>
+    <string name="connection_runing_task_left">Number of running test tasks: %s</string>
 
     <string name="import_subscription_success">اشتراک با موفقیت ذخیره شد</string>
     <string name="import_subscription_failure">ذخیره اشتراک ناموفق بود</string>
diff --git a/V2rayNG/app/src/main/res/values-ru/strings.xml b/V2rayNG/app/src/main/res/values-ru/strings.xml
index 7c8e6ef7..d762fad6 100644
--- a/V2rayNG/app/src/main/res/values-ru/strings.xml
+++ b/V2rayNG/app/src/main/res/values-ru/strings.xml
@@ -323,6 +323,7 @@
     <string name="connection_test_error_status_code">Код ошибки: #%d</string>
     <string name="connection_connected">Подключено, нажмите для проверки</string>
     <string name="connection_not_connected">Не подключено</string>
+    <string name="connection_runing_task_left">Number of running test tasks: %s</string>
 
     <string name="import_subscription_success">Подписка импортирована</string>
     <string name="import_subscription_failure">Невозможно импортировать подписку</string>
diff --git a/V2rayNG/app/src/main/res/values-vi/strings.xml b/V2rayNG/app/src/main/res/values-vi/strings.xml
index dc5c6427..e01c22a4 100644
--- a/V2rayNG/app/src/main/res/values-vi/strings.xml
+++ b/V2rayNG/app/src/main/res/values-vi/strings.xml
@@ -316,6 +316,7 @@
     <string name="connection_test_error_status_code">Mã lỗi: #%d</string>
     <string name="connection_connected">Đã kết nối, nhấn để kiểm tra kết nối mạng!</string>
     <string name="connection_not_connected">Chưa kết nối</string>
+    <string name="connection_runing_task_left">Number of running test tasks: %s</string>
 
     <string name="import_subscription_success">Nhập gói đăng ký thành công!</string>
     <string name="import_subscription_failure">Nhập gói đăng ký không thành công!</string>
diff --git a/V2rayNG/app/src/main/res/values-zh-rCN/strings.xml b/V2rayNG/app/src/main/res/values-zh-rCN/strings.xml
index f5b5f4b5..1b084142 100644
--- a/V2rayNG/app/src/main/res/values-zh-rCN/strings.xml
+++ b/V2rayNG/app/src/main/res/values-zh-rCN/strings.xml
@@ -313,6 +313,7 @@
     <string name="connection_test_error_status_code">"状态码无效（#%d）"</string>
     <string name="connection_connected">"已连接，点击测试连接"</string>
     <string name="connection_not_connected">"未连接"</string>
+    <string name="connection_runing_task_left">运行中的测试任务数：%s</string>
 
     <string name="import_subscription_success">订阅导入成功</string>
     <string name="import_subscription_failure">导入订阅失败</string>
diff --git a/V2rayNG/app/src/main/res/values-zh-rTW/strings.xml b/V2rayNG/app/src/main/res/values-zh-rTW/strings.xml
index 7b876d12..0431f336 100644
--- a/V2rayNG/app/src/main/res/values-zh-rTW/strings.xml
+++ b/V2rayNG/app/src/main/res/values-zh-rTW/strings.xml
@@ -313,6 +313,7 @@
     <string name="connection_test_error_status_code">"錯誤碼：(#%d)"</string>
     <string name="connection_connected">"已連線，輕觸以檢查連線能力"</string>
     <string name="connection_not_connected">"未連線"</string>
+    <string name="connection_runing_task_left">運行中的測試任務數：%s</string>
 
     <string name="import_subscription_success">匯入訂閱成功</string>
     <string name="import_subscription_failure">匯入訂閱失敗</string>
diff --git a/V2rayNG/app/src/main/res/values/strings.xml b/V2rayNG/app/src/main/res/values/strings.xml
index 14e3d582..e9d6c43d 100644
--- a/V2rayNG/app/src/main/res/values/strings.xml
+++ b/V2rayNG/app/src/main/res/values/strings.xml
@@ -327,6 +327,7 @@
     <string name="connection_test_error_status_code">Error code: #%d</string>
     <string name="connection_connected">Connected, tap to check connection</string>
     <string name="connection_not_connected">Not connected</string>
+    <string name="connection_runing_task_left">Number of running test tasks: %s</string>
 
     <string name="import_subscription_success">Subscription imported Successfully</string>
     <string name="import_subscription_failure">Import subscription failed</string>