diff --git a/src/proto/grpc/testing/messages.proto b/src/proto/grpc/testing/messages.proto
index 8fe32e10ce2..689c6217360 100644
--- a/src/proto/grpc/testing/messages.proto
+++ b/src/proto/grpc/testing/messages.proto
@@ -213,16 +213,16 @@ message LoadBalancerStatsResponse {
   map<string, RpcsByPeer> rpcs_by_method = 3;
 }
 
-// Request for retrieving a test client's real time stats.
-message LoadBalancerRealTimeStatsRequest {}
+// Request for retrieving a test client's accumulated stats.
+message LoadBalancerAccumulatedStatsRequest {}
 
-// Real-time stats for RPCs sent by a test client.
-message LoadBalancerRealTimeStatsResponse {
-  // The real-time total number of RPCs issued.
+// Accumulated stats for RPCs sent by a test client.
+message LoadBalancerAccumulatedStatsResponse {
+  // The total number of RPCs have ever issued.
   int32 num_rpcs_started = 1;
-  // The real-time total number of RPCs completed successfully for each peer.
+  // The total number of RPCs have ever completed successfully for each peer.
   map<string, int32> num_rpcs_succeeded_by_peer = 2;
-  // The real-time total number of RPCs failed.
+  // The total number of RPCs have ever failed.
   int32 num_rpcs_failed = 3;
 }
 
diff --git a/src/proto/grpc/testing/test.proto b/src/proto/grpc/testing/test.proto
index a7aaa10eb53..5805a41da99 100644
--- a/src/proto/grpc/testing/test.proto
+++ b/src/proto/grpc/testing/test.proto
@@ -83,13 +83,10 @@ service LoadBalancerStatsService {
   // Gets the backend distribution for RPCs sent by a test client.
   rpc GetClientStats(LoadBalancerStatsRequest)
       returns (LoadBalancerStatsResponse) {}
-}
 
-// A service used to obtain real-time stats for verifying LB behavior.
-service LoadBalancerRealTimeStatsService {
-  // Gets the real-time stats for RPCs sent by a test client.
-  rpc GetClientRealTimeStats(LoadBalancerRealTimeStatsRequest)
-      returns (LoadBalancerRealTimeStatsResponse) {}
+  // Gets the accumulated stats for RPCs sent by a test client.
+  rpc GetClientAccumulatedStats(LoadBalancerAccumulatedStatsRequest)
+      returns (LoadBalancerAccumulatedStatsResponse) {}
 }
 
 // A service to remotely control health status of an xDS test server.