serving RESTful: opt for performance

include/infer_log.h

@@ -24,6 +24,7 @@
 #include <memory>
 #include <iostream>
 #include <chrono>
+#include <vector>
 
 #ifndef ENABLE_ACL
 #include "mindspore/core/utils/log_adapter.h"
@@ -44,6 +45,19 @@ class LogStream {
     return *this;
   }
 
+  template <typename T>
+  LogStream &operator<<(const std::vector<T> &val) noexcept {
+    (*sstream_) << "[";
+    for (size_t i = 0; i < val.size(); i++) {
+      (*this) << val[i];
+      if (i + 1 < val.size()) {
+        (*sstream_) << ", ";
+      }
+    }
+    (*sstream_) << "]";
+    return *this;
+  }
+
   LogStream &operator<<(std::ostream &func(std::ostream &os)) noexcept {
     (*sstream_) << func;
     return *this;

serving/core/server.cc

@@ -185,7 +185,7 @@ Status Server::BuildAndStart() {
   int32_t http_port = option_args->rest_api_port;
   std::string http_addr = "0.0.0.0";
 
-  evhttp_set_timeout(http_server, 5);
+  evhttp_set_timeout(http_server, 60);
   evhttp_set_gencb(http_server, http_handler_msg, nullptr);
 
   // grpc server