Files
entt/test/benchmark.cpp
Michele Caini 60838c2b62 Experimental (#8)
performance improvements
2017-07-30 16:39:24 +02:00

416 lines
11 KiB
C++

#include <gtest/gtest.h>
#include <registry.hpp>
#include <iostream>
#include <cstddef>
#include <chrono>
#include <vector>
struct Position {
uint64_t x;
uint64_t y;
};
struct Velocity {
uint64_t x;
uint64_t y;
};
struct Comp1 {};
struct Comp2 {};
struct Comp3 {};
struct Comp4 {};
struct Comp5 {};
struct Comp6 {};
struct Comp7 {};
struct Comp8 {};
struct Timer final {
Timer(): start{std::chrono::system_clock::now()} {}
void elapsed() {
auto now = std::chrono::system_clock::now();
std::cout << std::chrono::duration<double>(now - start).count() << " seconds" << std::endl;
}
private:
std::chrono::time_point<std::chrono::system_clock> start;
};
TEST(DefaultRegistry, Construct) {
using registry_type = entt::DefaultRegistry<Position, Velocity>;
registry_type registry;
std::cout << "Constructing 10000000 entities" << std::endl;
Timer timer;
for (uint64_t i = 0; i < 10000000L; i++) {
registry.create();
}
timer.elapsed();
registry.reset();
}
TEST(DefaultRegistry, Destroy) {
using registry_type = entt::DefaultRegistry<Position, Velocity>;
registry_type registry;
std::vector<registry_type::entity_type> entities{};
std::cout << "Destroying 10000000 entities" << std::endl;
for (uint64_t i = 0; i < 10000000L; i++) {
entities.push_back(registry.create());
}
Timer timer;
for (auto entity: entities) {
registry.destroy(entity);
}
timer.elapsed();
}
TEST(DefaultRegistry, IterateCreateDeleteSingleComponent) {
using registry_type = entt::DefaultRegistry<Position, Velocity>;
registry_type registry;
std::cout << "Looping 10000 times creating and deleting a random number of entities" << std::endl;
Timer timer;
for(int i = 0; i < 10000; i++) {
for(int j = 0; j < 10000; j++) {
registry.create<Position>();
}
auto view = registry.view<Position>();
for(auto entity: view) {
if(rand() % 2 == 0) {
registry.destroy(entity);
}
}
}
timer.elapsed();
registry.reset();
}
TEST(DefaultRegistry, IterateSingleComponent10M) {
using registry_type = entt::DefaultRegistry<Position, Velocity>;
registry_type registry;
std::cout << "Iterating over 10000000 entities, one component" << std::endl;
for (uint64_t i = 0; i < 10000000L; i++) {
registry.create<Position>();
}
Timer timer;
auto view = registry.view<Position>();
for(auto entity: view) {
auto &position = registry.get<Position>(entity);
(void)position;
}
timer.elapsed();
registry.reset();
}
TEST(DefaultRegistry, IterateTwoComponents10M) {
using registry_type = entt::DefaultRegistry<Position, Velocity>;
registry_type registry;
std::cout << "Iterating over 10000000 entities, two components" << std::endl;
for (uint64_t i = 0; i < 10000000L; i++) {
registry.create<Position, Velocity>();
}
Timer timer;
auto view = registry.view<Position, Velocity>();
for(auto entity: view) {
auto &position = registry.get<Position>(entity);
auto &velocity = registry.get<Velocity>(entity);
(void)position;
(void)velocity;
}
timer.elapsed();
registry.reset();
}
TEST(DefaultRegistry, IterateTwoComponents10MHalf) {
using registry_type = entt::DefaultRegistry<Position, Velocity>;
registry_type registry;
std::cout << "Iterating over 10000000 entities, two components, half of the entities have all the components" << std::endl;
for (uint64_t i = 0; i < 10000000L; i++) {
auto entity = registry.create<Velocity>();
if(i % 2) { registry.assign<Position>(entity); }
}
Timer timer;
auto view = registry.view<Position, Velocity>();
for(auto entity: view) {
auto &position = registry.get<Position>(entity);
auto &velocity = registry.get<Velocity>(entity);
(void)position;
(void)velocity;
}
timer.elapsed();
registry.reset();
}
TEST(DefaultRegistry, IterateTwoComponents10MOne) {
using registry_type = entt::DefaultRegistry<Position, Velocity>;
registry_type registry;
std::cout << "Iterating over 10000000 entities, two components, only one entity has all the components" << std::endl;
for (uint64_t i = 0; i < 10000000L; i++) {
auto entity = registry.create<Velocity>();
if(i == 5000000L) { registry.assign<Position>(entity); }
}
Timer timer;
auto view = registry.view<Position, Velocity>();
for(auto entity: view) {
auto &position = registry.get<Position>(entity);
auto &velocity = registry.get<Velocity>(entity);
(void)position;
(void)velocity;
}
timer.elapsed();
registry.reset();
}
TEST(DefaultRegistry, IterateSingleComponent50M) {
using registry_type = entt::DefaultRegistry<Position, Velocity>;
registry_type registry;
std::cout << "Iterating over 50000000 entities, one component" << std::endl;
for (uint64_t i = 0; i < 50000000L; i++) {
registry.create<Position>();
}
Timer timer;
auto view = registry.view<Position>();
for(auto entity: view) {
auto &position = registry.get<Position>(entity);
(void)position;
}
timer.elapsed();
registry.reset();
}
TEST(DefaultRegistry, IterateTwoComponents50M) {
using registry_type = entt::DefaultRegistry<Position, Velocity>;
registry_type registry;
std::cout << "Iterating over 50000000 entities, two components" << std::endl;
for (uint64_t i = 0; i < 50000000L; i++) {
registry.create<Position, Velocity>();
}
Timer timer;
auto view = registry.view<Position, Velocity>();
for(auto entity: view) {
auto &position = registry.get<Position>(entity);
auto &velocity = registry.get<Velocity>(entity);
(void)position;
(void)velocity;
}
timer.elapsed();
registry.reset();
}
TEST(DefaultRegistry, IterateFiveComponents10M) {
using registry_type = entt::DefaultRegistry<Position, Velocity, Comp1, Comp2, Comp3>;
registry_type registry;
std::cout << "Iterating over 10000000 entities, five components" << std::endl;
for (uint64_t i = 0; i < 10000000L; i++) {
registry.create<Position, Velocity, Comp1, Comp2, Comp3>();
}
Timer timer;
auto view = registry.view<Position, Velocity, Comp1, Comp2, Comp3>();
for(auto entity: view) {
auto &position = registry.get<Position>(entity);
auto &velocity = registry.get<Velocity>(entity);
auto &comp1 = registry.get<Comp1>(entity);
auto &comp2 = registry.get<Comp2>(entity);
auto &comp3 = registry.get<Comp3>(entity);
(void)position;
(void)velocity;
(void)comp1;
(void)comp2;
(void)comp3;
}
timer.elapsed();
registry.reset();
}
TEST(DefaultRegistry, IterateTenComponents10M) {
using registry_type = entt::DefaultRegistry<Position, Velocity, Comp1, Comp2, Comp3, Comp4, Comp5, Comp6, Comp7, Comp8>;
registry_type registry;
std::cout << "Iterating over 10000000 entities, ten components" << std::endl;
for (uint64_t i = 0; i < 10000000L; i++) {
registry.create<Position, Velocity, Comp1, Comp2, Comp3, Comp4, Comp5, Comp6, Comp7, Comp8>();
}
Timer timer;
auto view = registry.view<Position, Velocity, Comp1, Comp2, Comp3, Comp4, Comp5, Comp6, Comp7, Comp8>();
for(auto entity: view) {
auto &position = registry.get<Position>(entity);
auto &velocity = registry.get<Velocity>(entity);
auto &comp1 = registry.get<Comp1>(entity);
auto &comp2 = registry.get<Comp2>(entity);
auto &comp3 = registry.get<Comp3>(entity);
auto &comp4 = registry.get<Comp4>(entity);
auto &comp5 = registry.get<Comp5>(entity);
auto &comp6 = registry.get<Comp6>(entity);
auto &comp7 = registry.get<Comp7>(entity);
auto &comp8 = registry.get<Comp8>(entity);
(void)position;
(void)velocity;
(void)comp1;
(void)comp2;
(void)comp3;
(void)comp4;
(void)comp5;
(void)comp6;
(void)comp7;
(void)comp8;
}
timer.elapsed();
registry.reset();
}
TEST(DefaultRegistry, IterateTenComponents10MHalf) {
using registry_type = entt::DefaultRegistry<Position, Velocity, Comp1, Comp2, Comp3, Comp4, Comp5, Comp6, Comp7, Comp8>;
registry_type registry;
std::cout << "Iterating over 10000000 entities, ten components, half of the entities have all the components" << std::endl;
for (uint64_t i = 0; i < 10000000L; i++) {
auto entity = registry.create<Velocity, Comp1, Comp2, Comp3, Comp4, Comp5, Comp6, Comp7, Comp8>();
if(i % 2) { registry.assign<Position>(entity); }
}
Timer timer;
auto view = registry.view<Position, Velocity, Comp1, Comp2, Comp3, Comp4, Comp5, Comp6, Comp7, Comp8>();
for(auto entity: view) {
auto &position = registry.get<Position>(entity);
auto &velocity = registry.get<Velocity>(entity);
auto &comp1 = registry.get<Comp1>(entity);
auto &comp2 = registry.get<Comp2>(entity);
auto &comp3 = registry.get<Comp3>(entity);
auto &comp4 = registry.get<Comp4>(entity);
auto &comp5 = registry.get<Comp5>(entity);
auto &comp6 = registry.get<Comp6>(entity);
auto &comp7 = registry.get<Comp7>(entity);
auto &comp8 = registry.get<Comp8>(entity);
(void)position;
(void)velocity;
(void)comp1;
(void)comp2;
(void)comp3;
(void)comp4;
(void)comp5;
(void)comp6;
(void)comp7;
(void)comp8;
}
timer.elapsed();
registry.reset();
}
TEST(DefaultRegistry, IterateTenComponents10MOne) {
using registry_type = entt::DefaultRegistry<Position, Velocity, Comp1, Comp2, Comp3, Comp4, Comp5, Comp6, Comp7, Comp8>;
registry_type registry;
std::cout << "Iterating over 10000000 entities, ten components, only one entity has all the components" << std::endl;
for (uint64_t i = 0; i < 10000000L; i++) {
auto entity = registry.create<Velocity, Comp1, Comp2, Comp3, Comp4, Comp5, Comp6, Comp7, Comp8>();
if(i == 5000000L) { registry.assign<Position>(entity); }
}
Timer timer;
auto view = registry.view<Position, Velocity, Comp1, Comp2, Comp3, Comp4, Comp5, Comp6, Comp7, Comp8>();
for(auto entity: view) {
auto &position = registry.get<Position>(entity);
auto &velocity = registry.get<Velocity>(entity);
auto &comp1 = registry.get<Comp1>(entity);
auto &comp2 = registry.get<Comp2>(entity);
auto &comp3 = registry.get<Comp3>(entity);
auto &comp4 = registry.get<Comp4>(entity);
auto &comp5 = registry.get<Comp5>(entity);
auto &comp6 = registry.get<Comp6>(entity);
auto &comp7 = registry.get<Comp7>(entity);
auto &comp8 = registry.get<Comp8>(entity);
(void)position;
(void)velocity;
(void)comp1;
(void)comp2;
(void)comp3;
(void)comp4;
(void)comp5;
(void)comp6;
(void)comp7;
(void)comp8;
}
timer.elapsed();
registry.reset();
}