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turbonss/cxxmph/bm_map.cc

102 lines
3.2 KiB
C++

#include <string>
#include <tr1/unordered_map>
#include "bm_common.h"
#include "mph_map.h"
using cxxmph::mph_map;
using std::string;
using std::unordered_map;
namespace cxxmph {
template<class MapType, class T>
const T* myfind(const MapType& mymap, const T& k) {
auto it = mymap.find(k);
auto end = mymap.end();
if (it == end) return NULL;
return &it->second;
}
template <class MapType>
class BM_CreateUrls : public UrlsBenchmark {
public:
BM_CreateUrls(const string& urls_file) : UrlsBenchmark(urls_file) { }
virtual void Run() {
MapType mymap;
for (auto it = urls_.begin(); it != urls_.end(); ++it) {
mymap[*it] = *it;
}
}
};
template <class MapType>
class BM_SearchUrls : public SearchUrlsBenchmark {
public:
BM_SearchUrls(const std::string& urls_file, int nsearches, float miss_ratio)
: SearchUrlsBenchmark(urls_file, nsearches, miss_ratio) { }
virtual void Run() {
for (auto it = random_.begin(); it != random_.end(); ++it) {
auto v = myfind(mymap_, *it);
assert(it->ends_with(".force_miss") ^ v != NULL);
assert(!v || *v == *it);
}
}
protected:
virtual bool SetUp() {
if (!SearchUrlsBenchmark::SetUp()) return false;
for (auto it = urls_.begin(); it != urls_.end(); ++it) {
mymap_[*it] = *it;
}
mymap_.rehash(mymap_.bucket_count());
fprintf(stderr, "Occupation: %f\n", static_cast<float>(mymap_.size())/mymap_.bucket_count());
return true;
}
MapType mymap_;
};
template <class MapType>
class BM_SearchUint64 : public SearchUint64Benchmark {
public:
BM_SearchUint64() : SearchUint64Benchmark(100000, 10*1000*1000) { }
virtual bool SetUp() {
if (!SearchUint64Benchmark::SetUp()) return false;
for (int i = 0; i < values_.size(); ++i) {
mymap_[values_[i]] = values_[i];
}
mymap_.rehash(mymap_.bucket_count());
// Double check if everything is all right
for (int i = 0; i < values_.size(); ++i) {
if (mymap_[values_[i]] != values_[i]) return false;
}
return true;
}
virtual void Run() {
for (auto it = random_.begin(); it != random_.end(); ++it) {
auto v = myfind(mymap_, *it);
if (*v != *it) {
fprintf(stderr, "Looked for %lu got %lu\n", *it, *v);
exit(-1);
}
}
}
MapType mymap_;
};
} // namespace cxxmph
using namespace cxxmph;
int main(int argc, char** argv) {
srandom(4);
Benchmark::Register(new BM_CreateUrls<mph_map<StringPiece, StringPiece>>("URLS100k"));
Benchmark::Register(new BM_CreateUrls<unordered_map<StringPiece, StringPiece>>("URLS100k"));
Benchmark::Register(new BM_SearchUrls<mph_map<StringPiece, StringPiece>>("URLS100k", 10*1000 * 1000, 0));
Benchmark::Register(new BM_SearchUrls<unordered_map<StringPiece, StringPiece, Murmur3StringPiece>>("URLS100k", 10*1000 * 1000, 0));
// Benchmark::Register(new BM_SearchUrls<mph_map<StringPiece, StringPiece>>("URLS100k", 10*1000 * 1000, 0.9));
// Benchmark::Register(new BM_SearchUrls<unordered_map<StringPiece, StringPiece, Murmur3StringPiece>>("URLS100k", 10*1000 * 1000, 0.9));
Benchmark::Register(new BM_SearchUint64<mph_map<uint64_t, uint64_t>>);
Benchmark::Register(new BM_SearchUint64<unordered_map<uint64_t, uint64_t>>);
Benchmark::RunAll();
}