整改2

src/Server.kt

@@ -6,6 +6,7 @@ import java.net.ServerSocket
 import java.net.Socket
 import java.util.*
 import java.util.concurrent.CopyOnWriteArrayList
+import kotlin.system.measureTimeMillis
 
 var clientAudios: MutableList<ClientAudio> = CopyOnWriteArrayList()
 
@@ -24,12 +25,15 @@ fun main() = runBlocking {
 
             for (client in clientAudios) {
                 launch(Dispatchers.IO) {
+                    val t = measureTimeMillis {
                         for (audio in clientAudios) {
                             if (audio != client)
                                 audio.mix(client.sample)
                         }
                         client.send()
                     }
+                    println("server send time: $t")
+                }
             }
         }
     }