forked from MassiveAtoms/hashmap-bench
made it use less memory
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90e3e0d274
commit
81dc4804ec
6
main.cpp
6
main.cpp
@ -9,7 +9,11 @@
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// typedef std::unordered_map<int,int> map;
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// we can use ^ to switch the map implementations to that
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// we can add some cli handling so we can specify which maps to tests (or all)
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int main() {
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string_test(std::unordered_map<std::string, std::string>{}, 10);
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int_test(std::unordered_map<int, int>{}, 10);
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}
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// test takes 52 mins for 10 runs for 1 dict
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}
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@ -10,7 +10,7 @@ std::vector<int> sizes = {
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50000, 100000, 150000, 200000, 250000, 300000, 350000, 400000, 500000,
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600000, 700000, 800000, 900000, 1000000,
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2000000, 3000000, 4000000, 5000000, 6000000, 7000000, 8000000, 9000000, 10000000,
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15000000, 20000000, 25000000, 30000000, 35000000, 40000000, 45000000, 50000000
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// 15000000, 20000000, 25000000, 30000000, 35000000, 40000000, 45000000, 50000000
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};
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@ -47,18 +47,19 @@ std::basic_string_view<char> name(T var){
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template<class T>
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int int_test(T map, int repeats=30){
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std::cout << "\t\t" << name(map) << "int tests \n";
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std::ofstream output{"results.csv", std::ios_base::app};
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// insert int tests
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for (int i = 0; i < repeats; ++i){
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std::string resultline = "insert_int, '" + std::string{name(map)} + "', ";
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for (auto size: sizes){
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std::cout << size << ", ";
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float result = insert_int_test(size, T{}).count();
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resultline += std::to_string(result);
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resultline += ", ";
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}
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output << resultline << "\n";
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}
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std::cout << "insert int test done\n";
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// lookup int
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for (int i = 0; i < repeats; ++i){
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@ -70,6 +71,7 @@ int int_test(T map, int repeats=30){
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}
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output << resultline << "\n";
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}
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std::cout << "lookup int test done\n";
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// unsuccesful lookup
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for (int i = 0; i < repeats; ++i){
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std::string resultline = "nolookup_int, '" + std::string{name(map)} + "', ";
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@ -80,6 +82,7 @@ int int_test(T map, int repeats=30){
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}
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output << resultline << "\n";
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}
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std::cout << "unsuccesful lookup int test done\n";
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// deletion
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for (int i = 0; i < repeats; ++i){
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@ -91,13 +94,14 @@ int int_test(T map, int repeats=30){
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}
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output << resultline << "\n";
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}
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std::cout << "deletion int test done\n";
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return 0;
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}
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template<class T>
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int string_test(T map, int repeats=30){
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std::cout <<"\t\t" << name(map) << " stringtest \n";
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std::ofstream output{"results.csv", std::ios_base::app};
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// insert int tests
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for (int i = 0; i < repeats; ++i){
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@ -109,6 +113,7 @@ int string_test(T map, int repeats=30){
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}
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output << resultline << "\n";
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}
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std::cout << "insert string test done\n";
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// lookup int
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for (int i = 0; i < repeats; ++i){
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@ -120,6 +125,7 @@ int string_test(T map, int repeats=30){
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}
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output << resultline << "\n";
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}
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std::cout << "lookup string test done\n";
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// unsuccesful lookup
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for (int i = 0; i < repeats; ++i){
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std::string resultline = "nolookup_string, '" + std::string{name(map)} + "', ";
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@ -130,7 +136,7 @@ int string_test(T map, int repeats=30){
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}
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output << resultline << "\n";
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}
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std::cout << "unsuccesful lookup string test done\n";
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// deletion
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for (int i = 0; i < repeats; ++i){
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std::string resultline = "delete_string, '" + std::string{name(map)} + "', ";
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@ -141,6 +147,7 @@ int string_test(T map, int repeats=30){
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}
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output << resultline << "\n";
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}
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std::cout << "deletion string test done\n";
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return 0;
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@ -11,7 +11,8 @@
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using namespace std::chrono;
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// writing out type info
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// https://stackoverflow.com/questions/81870/is-it-possible-to-print-a-variables-type-in-standard-c/56766138#56766138
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template <class T>
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nanoseconds insert_int_test(int size, T testmap){
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// init hashmap, insert size - 10k items
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@ -41,7 +42,7 @@ nanoseconds insert_int_test(int size, T testmap){
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testmap.insert({i,i});
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}
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time_point<steady_clock> end_insert_test = steady_clock::now();
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testmap.clear();
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// time per insert
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auto duration = duration_cast<nanoseconds>(end_insert_test - start_insert_test) - vector_time ;
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return duration / 10000;
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@ -78,7 +79,7 @@ nanoseconds insert_string_test(int size, T testmap){
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testmap.insert({i,i});
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}
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time_point<steady_clock> end_insert_test = steady_clock::now();
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testmap.clear();
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// time per insert
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auto duration = duration_cast<nanoseconds>(end_insert_test - start_insert_test) - vector_time ;
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return duration / 10000;
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@ -118,6 +119,7 @@ nanoseconds lookup_int_test(int size, T testmap){
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std::cout << "SOMETHUNG IS WRONG!";
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}
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}
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testmap.clear();
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time_point<steady_clock> end_benchmark = steady_clock::now();
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auto duration = duration_cast<nanoseconds>(end_benchmark - start_benchmark) - vector_time;
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return duration / 10000;
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@ -156,6 +158,7 @@ nanoseconds lookup_string_test(int size, T testmap){
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std::cout << "SOMETHUNG IS WRONG!";
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}
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}
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testmap.clear();
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time_point<steady_clock> end_benchmark = steady_clock::now();
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auto duration = duration_cast<nanoseconds>(end_benchmark - start_benchmark) - vector_time;
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return duration / 10000;
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@ -193,6 +196,7 @@ nanoseconds nolookup_int_test(int size, T testmap){
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std::cout << "SOMETHUNG IS WRONG!";
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}
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}
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testmap.clear();
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time_point<steady_clock> end_benchmark = steady_clock::now();
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auto duration = duration_cast<nanoseconds>(end_benchmark - start_benchmark) - vector_time;
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return duration / 10000;
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@ -228,6 +232,7 @@ nanoseconds nolookup_string_test(int size, T testmap){
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std::cout << "SOMETHUNG IS WRONG!";
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}
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}
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testmap.clear();
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time_point<steady_clock> end_benchmark = steady_clock::now();
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auto duration = duration_cast<nanoseconds>(end_benchmark - start_benchmark) - vector_time;
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return duration / 10000;
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@ -265,6 +270,7 @@ nanoseconds delete_int_test(int size, T testmap){
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for (auto i : sample_inserted){
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testmap.erase(i);
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}
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testmap.clear();
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time_point<steady_clock> end_benchmark = steady_clock::now();
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auto duration = duration_cast<nanoseconds>(end_benchmark - start_benchmark) - vector_time;
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return duration / 10000;
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@ -302,6 +308,7 @@ nanoseconds delete_string_test(int size, T testmap){
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for (auto i : sample_inserted){
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testmap.erase(i);
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}
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testmap.clear();
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time_point<steady_clock> end_benchmark = steady_clock::now();
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auto duration = duration_cast<nanoseconds>(end_benchmark - start_benchmark) - vector_time;
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return duration / 10000;
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