minor modification to benchmark (#100)

Co-authored-by: hanjun <hanjun@agibot.com>

src/examples/cpp/pb_chn/module/benchmark_subscriber_module/benchmark_subscriber_module.cc

@@ -175,7 +175,7 @@ void BenchmarkSubscriberModule::Evaluate() const {
 
   size_t recv_count = statistics_array.size();
 
-  double loss_rate = static_cast<double>(send_count - recv_count) / send_count;
+  double loss_rate = static_cast<double>(send_count - recv_count) / send_count * 100.0;
 
   std::sort(statistics_array.begin(), statistics_array.end());
 
@@ -195,7 +195,7 @@ msg size: {} bytes
 msg count per topic: {}
 send count : {}
 recv count: {}
-loss rate: {}
+loss rate: {} %
 min latency: {} us
 max latency: {} us
 avg latency: {} us

src/examples/cpp/pb_rpc/module/benchmark_rpc_client_module/benchmark_rpc_client_module.cc

@@ -232,7 +232,7 @@ co::Task<void> BenchmarkRpcClientModule::StartSinglePlan(uint32_t plan_id, Bench
   uint64_t correct_count = gather_vec.size();
   uint64_t total_count = plan.msg_count * plan.parallel;
 
-  double error_rate = static_cast<double>(total_count - correct_count) / total_count;
+  double error_rate = static_cast<double>(total_count - correct_count) / total_count * 100;
   double qps = (total_count * 1000.0) / total_time_ms;
 
   std::sort(gather_vec.begin(), gather_vec.end());

src/examples/py/pb_chn_bench/benchmark_subscriber_module.py

@@ -168,7 +168,7 @@ class BenchmarkSubscriber(aimrt_py.ModuleBase):
         result_str += f"\nmsg count per topic: {self.cur_bench_plan.send_num}"
         result_str += f"\nsend count: {send_count}"
         result_str += f"\nrecv count: {recv_count}"
-        result_str += f"\nloss rate: {loss_rate:.2f}"
+        result_str += f"\nloss rate: {loss_rate:.2f} % "
         result_str += f"\nmin latency: {min_latency:.3f} us"
         result_str += f"\nmax latency: {max_latency:.3f} us"
         result_str += f"\navg latency: {avg_latency:.3f} us"

src/examples/py/pb_rpc_bench/benchmark_rpc_client_module.py

@@ -168,7 +168,7 @@ class BenchmarkRpcClientModule(aimrt_py.ModuleBase):
 
         correct_count = len(self.perf_data)
         total_count = plan['parallel'] * plan['msg_count']
-        error_rate = (total_count - correct_count) / total_count
+        error_rate = (total_count - correct_count) / total_count * 100.0
         qps = (total_count * 1000.0) / total_time_ms
 
         min_latency = self.perf_data[0]