diff --git a/benchmarks/cpp/cpp_benchmark.cc b/benchmarks/cpp/cpp_benchmark.cc
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+++ b/benchmarks/cpp/cpp_benchmark.cc
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+// Protocol Buffers - Google's data interchange format
+// Copyright 2008 Google Inc.  All rights reserved.
+// https://developers.google.com/protocol-buffers/
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include <fstream>
+#include <iostream>
+#include "benchmark/benchmark_api.h"
+#include "benchmarks.pb.h"
+#include "datasets/google_message1/proto2/benchmark_message1_proto2.pb.h"
+#include "datasets/google_message1/proto3/benchmark_message1_proto3.pb.h"
+#include "datasets/google_message2/benchmark_message2.pb.h"
+#include "datasets/google_message3/benchmark_message3.pb.h"
+#include "datasets/google_message4/benchmark_message4.pb.h"
+
+
+#define PREFIX "dataset."
+#define SUFFIX ".pb"
+
+using benchmarks::BenchmarkDataset;
+using google::protobuf::Arena;
+using google::protobuf::Descriptor;
+using google::protobuf::DescriptorPool;
+using google::protobuf::Message;
+using google::protobuf::MessageFactory;
+
+class Fixture : public benchmark::Fixture {
+ public:
+  Fixture(const BenchmarkDataset& dataset, const std::string& suffix) {
+    for (int i = 0; i < dataset.payload_size(); i++) {
+      payloads_.push_back(dataset.payload(i));
+    }
+
+    const Descriptor* d =
+        DescriptorPool::generated_pool()->FindMessageTypeByName(
+            dataset.message_name());
+
+    if (!d) {
+      std::cerr << "Couldn't find message named '" << dataset.message_name()
+                << "\n";
+    }
+
+    prototype_ = MessageFactory::generated_factory()->GetPrototype(d);
+    SetName((dataset.name() + suffix).c_str());
+  }
+
+ protected:
+  std::vector<std::string> payloads_;
+  const Message* prototype_;
+};
+
+class WrappingCounter {
+ public:
+  WrappingCounter(size_t limit) : value_(0), limit_(limit) {}
+
+  size_t Next() {
+    size_t ret = value_;
+    if (++value_ == limit_) {
+      value_ = 0;
+    }
+    return ret;
+  }
+
+ private:
+  size_t value_;
+  size_t limit_;
+};
+
+template <class T>
+class ParseNewFixture : public Fixture {
+ public:
+  ParseNewFixture(const BenchmarkDataset& dataset)
+      : Fixture(dataset, "_parse_new") {}
+
+  virtual void BenchmarkCase(benchmark::State& state) {
+    WrappingCounter i(payloads_.size());
+    size_t total = 0;
+
+    while (state.KeepRunning()) {
+      T m;
+      const std::string& payload = payloads_[i.Next()];
+      total += payload.size();
+      m.ParseFromString(payload);
+    }
+
+    state.SetBytesProcessed(total);
+  }
+};
+
+template <class T>
+class ParseNewArenaFixture : public Fixture {
+ public:
+  ParseNewArenaFixture(const BenchmarkDataset& dataset)
+      : Fixture(dataset, "_parse_newarena") {}
+
+  virtual void BenchmarkCase(benchmark::State& state) {
+    WrappingCounter i(payloads_.size());
+    size_t total = 0;
+    Arena arena;
+
+    while (state.KeepRunning()) {
+      arena.Reset();
+      Message* m = Arena::CreateMessage<T>(&arena);
+      const std::string& payload = payloads_[i.Next()];
+      total += payload.size();
+      m->ParseFromString(payload);
+    }
+
+    state.SetBytesProcessed(total);
+  }
+};
+
+template <class T>
+class ParseReuseFixture : public Fixture {
+ public:
+  ParseReuseFixture(const BenchmarkDataset& dataset)
+      : Fixture(dataset, "_parse_reuse") {}
+
+  virtual void BenchmarkCase(benchmark::State& state) {
+    T m;
+    WrappingCounter i(payloads_.size());
+    size_t total = 0;
+
+    while (state.KeepRunning()) {
+      const std::string& payload = payloads_[i.Next()];
+      total += payload.size();
+      m.ParseFromString(payload);
+    }
+
+    state.SetBytesProcessed(total);
+  }
+};
+
+template <class T>
+class SerializeFixture : public Fixture {
+ public:
+  SerializeFixture(const BenchmarkDataset& dataset)
+      : Fixture(dataset, "_serialize") {
+    for (size_t i = 0; i < payloads_.size(); i++) {
+      message_.push_back(new T);
+      message_.back()->ParseFromString(payloads_[i]);
+    }
+  }
+
+  ~SerializeFixture() {
+    for (size_t i = 0; i < message_.size(); i++) {
+      delete message_[i];
+    }
+  }
+
+  virtual void BenchmarkCase(benchmark::State& state) {
+    size_t total = 0;
+    std::string str;
+    WrappingCounter i(payloads_.size());
+
+    while (state.KeepRunning()) {
+      str.clear();
+      message_[i.Next()]->SerializeToString(&str);
+      total += str.size();
+    }
+
+    state.SetBytesProcessed(total);
+  }
+
+ private:
+  std::vector<T*> message_;
+};
+
+std::string ReadFile(const std::string& name) {
+  std::ifstream file(name.c_str());
+  GOOGLE_CHECK(file.is_open()) << "Couldn't find file '" << name <<
+                                  "', please make sure you are running "
+                                  "this command from the benchmarks/ "
+                                  "directory.\n";
+  return std::string((std::istreambuf_iterator<char>(file)),
+                     std::istreambuf_iterator<char>());
+}
+
+template <class T>
+void RegisterBenchmarksForType(const BenchmarkDataset& dataset) {
+  ::benchmark::internal::RegisterBenchmarkInternal(
+      new ParseNewFixture<T>(dataset));
+  ::benchmark::internal::RegisterBenchmarkInternal(
+      new ParseReuseFixture<T>(dataset));
+  ::benchmark::internal::RegisterBenchmarkInternal(
+      new ParseNewArenaFixture<T>(dataset));
+  ::benchmark::internal::RegisterBenchmarkInternal(
+      new SerializeFixture<T>(dataset));
+}
+
+void RegisterBenchmarks(const std::string& dataset_bytes) {
+  BenchmarkDataset dataset;
+  GOOGLE_CHECK(dataset.ParseFromString(dataset_bytes));
+
+  if (dataset.message_name() == "benchmarks.proto3.GoogleMessage1") {
+    RegisterBenchmarksForType<benchmarks::proto3::GoogleMessage1>(dataset);
+  } else if (dataset.message_name() == "benchmarks.proto2.GoogleMessage1") {
+    RegisterBenchmarksForType<benchmarks::proto2::GoogleMessage1>(dataset);
+  } else if (dataset.message_name() == "benchmarks.proto2.GoogleMessage2") {
+    RegisterBenchmarksForType<benchmarks::proto2::GoogleMessage2>(dataset);
+  } else if (dataset.message_name() ==
+      "benchmarks.google_message3.GoogleMessage3") {
+    RegisterBenchmarksForType
+    <benchmarks::google_message3::GoogleMessage3>(dataset);
+  } else if (dataset.message_name() ==
+      "benchmarks.google_message4.GoogleMessage4") {
+    RegisterBenchmarksForType
+    <benchmarks::google_message4::GoogleMessage4>(dataset);
+  } else {
+    std::cerr << "Unknown message type: " << dataset.message_name();
+    exit(1);
+  }
+}
+
+int main(int argc, char *argv[]) {
+  ::benchmark::Initialize(&argc, argv);
+  if (argc == 1) {
+    std::cerr << "Usage: ./cpp-benchmark <input data>" << std::endl;
+    std::cerr << "input data is in the format of \"benchmarks.proto\""
+        << std::endl;
+    return 1;
+  } else {
+    for (int i = 1; i < argc; i++) {
+      RegisterBenchmarks(ReadFile(argv[i]));
+    }
+  }
+
+  ::benchmark::RunSpecifiedBenchmarks();
+}