uuid-benchmark.cc

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// Copyright 2012 Cloudera Inc.
//
// 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 <stdlib.h>
#include <stdio.h>
#include <iostream>
#include <vector>
#include <sstream>
#include "runtime/string-value.h"
#include "util/benchmark.h"
#include "util/cpu-info.h"
#include "util/thrift-util.h"
#include "gen-cpp/Types_types.h"

#include <boost/shared_ptr.hpp>
#include <boost/thread/mutex.hpp>
#include <boost/thread.hpp>
#include <thrift/protocol/TBinaryProtocol.h>
#include <sstream>
#include <thrift/TApplicationException.h>
#include <thrift/transport/TBufferTransports.h>
#include <boost/uuid/uuid.hpp>
#include <boost/uuid/uuid_generators.hpp>

using namespace impala;
using namespace std;
using namespace boost;
using namespace boost::uuids;

mutex global_mutex;
static boost::uuids::random_generator uuid_generator_;

static int NUM_REPS = 100;

void TestSharedGenerator(int n) {
  for (int i = 0; i < n * 10; ++i) {
    lock_guard<mutex> l(global_mutex);
    uuid query_uuid = uuid_generator_();
  }
}

void TestOwnGenerator(int n) {
  for (int i = 0; i < n * 10; ++i) {
    boost::uuids::random_generator uuid_generator;
    uuid query_uuid = uuid_generator();
  }
}

void TestOwnThreaded(int size, void* d) {
cout << "Size: " << size;
  vector<boost::thread*> threads;
  for (int i = 0; i < 2; ++i) {
threads.push_back(new thread(TestOwnGenerator, size));
  }

for (int i = 0; i< threads.size(); ++i) {
    threads[i]->join();
    delete threads[i];
  }
}

void TestSharedThreaded(int size, void* d) {
vector<boost::thread*> threads;
for (int i = 0; i < 2; ++i) {
threads.push_back(new thread(TestOwnGenerator, size));
}

for (int i = 0; i< threads.size(); ++i) {
threads[i]->join();
delete threads[i];
}
}


int main(int argc, char **argv) {
  CpuInfo::Init();

  Benchmark suite("UUID generator");
  suite.AddBenchmark("Own generator", TestOwnThreaded, NULL);
  suite.AddBenchmark("Shared generator", TestSharedThreaded, NULL);
  cout << suite.Measure();

  return 0;
}