chore: import upstream snapshot with attribution

test/cpp/fluid/platform/cpu_info_test.cc

@@ -0,0 +1,34 @@
+//  Copyright (c) 2018 PaddlePaddle Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+#include "paddle/phi/backends/cpu/cpu_info.h"
+
+#include <sstream>
+
+#include "gtest/gtest.h"
+#include "paddle/common/flags.h"
+#include "paddle/utils/string/printf.h"
+
+COMMON_DECLARE_double(fraction_of_cpu_memory_to_use);
+
+TEST(CpuMemoryUsage, Print) {
+  std::stringstream ss;
+  size_t memory_size =
+      phi::backends::cpu::CpuMaxAllocSize() / 1024 / 1024 / 1024;
+  float use_percent = FLAGS_fraction_of_cpu_memory_to_use * 100;  // NOLINT
+
+  std::cout << paddle::string::Sprintf("\n%.2f %% of CPU Memory Usage: %d GB\n",
+                                       use_percent,
+                                       memory_size)
+            << std::endl;
+}