diff --git a/cxxmph/bm_common.cc b/cxxmph/bm_common.cc
new file mode 100644
index 0000000..f0e0336
--- /dev/null
+++ b/cxxmph/bm_common.cc
@@ -0,0 +1,62 @@
+#include <fstream>
+#include <iostream>
+#include <set>
+
+#include "bm_common.h"
+
+using std::cerr;
+using std::endl;
+using std::set;
+using std::string;
+using std::vector;
+
+namespace cxxmph {
+  
+bool UrlsBenchmark::SetUp() {
+  vector<string> urls;
+  std::ifstream f(urls_file_.c_str());
+  if (!f.is_open()) {
+    cerr << "Failed to open urls file " << urls_file_ << endl;
+    return false;
+  }
+  string buffer;
+  while(std::getline(f, buffer)) urls.push_back(buffer);
+  set<string> unique(urls.begin(), urls.end());
+  if (unique.size() != urls.size()) {
+    cerr << "Input file has repeated keys." << endl;
+    return false;
+  }
+  urls.swap(urls_);
+  return true;
+}
+
+bool SearchUrlsBenchmark::SetUp() {
+  if (!UrlsBenchmark::SetUp()) return false;
+  random_.resize(nsearches_);
+  for (int i = 0; i < nsearches_; ++i) {
+    random_[i] = urls_[random() % urls_.size()];
+  }
+  return true;
+}
+
+bool Uint64Benchmark::SetUp() {
+  set<uint64_t> unique;
+  for (int i = 0; i < count_; ++i) {
+    uint64_t v;
+    do { v = random(); } while (unique.find(v) != unique.end());
+    values_.push_back(v);
+    unique.insert(v);
+  }
+  return true;
+}
+
+bool SearchUint64Benchmark::SetUp() {
+  if (!Uint64Benchmark::SetUp()) return false;
+  random_.resize(nsearches_);
+  for (int i = 0; i < nsearches_; ++i) {
+    random_.push_back(values_[random() % values_.size()]);
+  }
+  return true;
+}
+
+}  // namespace cxxmph 
diff --git a/cxxmph/bm_common.h b/cxxmph/bm_common.h
new file mode 100644
index 0000000..70a5f5e
--- /dev/null
+++ b/cxxmph/bm_common.h
@@ -0,0 +1,62 @@
+#include "stringpiece.h"
+
+#include <string>
+#include <vector>
+#include <tr1/unordered_map>  // for std::tr1::hash
+#include "MurmurHash2.h"
+
+#include "benchmark.h"
+
+namespace std {
+namespace tr1 {
+template <> struct hash<cxxmph::StringPiece> {
+  uint32_t operator()(const cxxmph::StringPiece& k) const {
+    return cxxmph::MurmurHash2(k.data(), k.length(), 1);
+  }
+};
+}  // namespace tr1
+}  // namespace std
+
+namespace cxxmph {
+
+class UrlsBenchmark : public Benchmark {
+ public:
+  UrlsBenchmark(const std::string& urls_file) : urls_file_(urls_file) { }
+ protected:
+  virtual bool SetUp();
+  const std::string urls_file_;
+  std::vector<std::string> urls_;
+};
+
+class SearchUrlsBenchmark : public UrlsBenchmark {
+ public:
+  SearchUrlsBenchmark(const std::string& urls_file, uint32_t nsearches)
+      : UrlsBenchmark(urls_file), nsearches_(nsearches) {}
+ protected:
+  virtual bool SetUp();
+  const uint32_t nsearches_; 
+  std::vector<StringPiece> random_;
+};
+
+class Uint64Benchmark : public Benchmark {
+ public:
+  Uint64Benchmark(uint32_t count) : count_(count) { }
+  virtual void Run() {}
+ protected:
+  virtual bool SetUp();
+  const uint32_t count_;
+  std::vector<uint64_t> values_;
+};
+
+class SearchUint64Benchmark : public Uint64Benchmark {
+ public:
+  SearchUint64Benchmark(uint32_t count, uint32_t nsearches)
+      : Uint64Benchmark(count), nsearches_(nsearches) { }
+  virtual void Run() {};
+ protected:
+  virtual bool SetUp();
+  const uint32_t nsearches_;
+  std::vector<uint32_t> random_;
+};
+
+}  // namespace cxxmph
diff --git a/cxxmph/bm_index.cc b/cxxmph/bm_index.cc
new file mode 100644
index 0000000..03cb222
--- /dev/null
+++ b/cxxmph/bm_index.cc
@@ -0,0 +1,81 @@
+#include <set>
+#include <string>
+#include <tr1/unordered_set>
+
+#include "bm_common.h"
+#include "StringPiece.h"
+#include "mph_index.h"
+
+using namespace cxxmph;
+
+using std::string;
+using std::tr1::unordered_set;
+
+class BM_MPHIndexCreate : public UrlsBenchmark {
+ public:
+  BM_MPHIndexCreate(const std::string& urls_file)
+      : UrlsBenchmark(urls_file) { }
+ protected:
+  virtual void Run() {
+    SimpleMPHIndex<StringPiece> index;
+    index.Reset(urls_.begin(), urls_.end());
+  }
+};
+
+class BM_STLIndexCreate : public UrlsBenchmark {
+ public:
+  BM_STLIndexCreate(const std::string& urls_file)
+      : UrlsBenchmark(urls_file) { }
+ protected:
+  virtual void Run() {
+    unordered_set<StringPiece> index;
+    index.insert(urls_.begin(), urls_.end());
+  }
+};
+   
+class BM_MPHIndexSearch : public SearchUrlsBenchmark {
+ public:
+  BM_MPHIndexSearch(const std::string& urls_file, int nsearches)
+      : SearchUrlsBenchmark(urls_file, nsearches) { }
+  virtual void Run() {
+    while (true) {
+    for (auto it = random_.begin(); it != random_.end(); ++it) {
+      index_.index(*it);
+    }
+    }
+  }
+ protected:
+  virtual bool SetUp () {
+   if (!SearchUrlsBenchmark::SetUp()) return false;
+   index_.Reset(urls_.begin(), urls_.end());
+   return true;
+  }
+  SimpleMPHIndex<StringPiece> index_;
+};
+
+class BM_STLIndexSearch : public SearchUrlsBenchmark {
+ public:
+  BM_STLIndexSearch(const std::string& urls_file, int nsearches)
+      : SearchUrlsBenchmark(urls_file, nsearches) { }
+  virtual void Run() {
+    for (auto it = random_.begin(); it != random_.end(); ++it) {
+      index_.find(*it); // - index_.begin();
+    }
+  }
+ protected:
+  virtual bool SetUp () {
+   if (!SearchUrlsBenchmark::SetUp()) return false;
+   std::tr1::unordered_set<StringPiece>(urls_.begin(), urls_.end()).swap(index_);
+   return true;
+  }
+  std::tr1::unordered_set<StringPiece> index_;
+};
+
+int main(int argc, char** argv) {
+  Benchmark::Register(new BM_MPHIndexCreate("URLS100k"));
+  Benchmark::Register(new BM_STLIndexCreate("URLS100k"));
+  Benchmark::Register(new BM_MPHIndexSearch("URLS100k", 1000*1000));
+  Benchmark::Register(new BM_STLIndexSearch("URLS100k", 1000*1000));
+  Benchmark::RunAll();
+  return 0;
+}