routing: reduce routing response history internval from 3 sec to 1 sec.

modules/routing/common/routing_gflags.cc

@@ -30,5 +30,5 @@ DEFINE_double(min_length_for_lane_change, 1.0,
 DEFINE_bool(enable_change_lane_in_result, true,
             "contain change lane operator in result");
 
-DEFINE_uint32(routing_response_history_interval_ms, 3000,
+DEFINE_uint32(routing_response_history_interval_ms, 1000,
               "ms, emit routing resposne for this time interval");

modules/routing/routing_component.cc

@@ -58,7 +58,10 @@ bool RoutingComponent::Init() {
         if (ptr) {
           std::lock_guard<std::mutex> guard(this->mutex_);
           if (this->response_.get() != nullptr) {
-            this->response_history_writer_->Write(response_);
+            auto response = *response_;
+            auto timestamp = apollo::common::time::Clock::NowInSeconds();
+            response.mutable_header()->set_timestamp_sec(timestamp);
+            this->response_history_writer_->Write(response);
           }
         }
       },