johnbuffer / ezbench

Easy to use performance comparator for C++ (C++11 required)

EzBench 🏁

Easy-to-use single file header only performance comparator for C++ (cpp11 or later)

Usage

Include ezbench.hpp

include "ezbench.hpp"

Create a set of minimal functions to compare

void vecAdd(std::vector<TestStruct>& vec, uint32_t add_count)
{
    for (int i(add_count); i--;)
    {
        vec->push_back(TestStruct());
    }
}

Using a very simple test structure

struct TestStruct
{
    double useless[20];
    TestStruct() = default;
};

Build the benchmark - so EZ 👌

std::vector<TestStruct> vec;
std::list<TestStruct>   list;

uint8_t  iteration_count = 1;
uint32_t objects_count   = 1000000;

ezb::Benchmark bench{
    iteration_count, // Not implemented yet, set it to 1
    {
      {"Insertion", // Test 1
          {
            {"Vector", std::bind(vecAdd, vec,  objects_count)},
            {"List", std::bind(listAdd,  list, objects_count)}
          }
      },
      {"Iteration", // Test 2
          {
              {"Vector", std::bind(vecIter, vec)},
              {"List", std::bind(listIter,  list)}
          }
      },
      {"Deletion", // Test 3
          {
              {"Vector", std::bind(vecDel, vec)},
              {"List", std::bind(listDel,  list)}
          }
      }
  }
};

Output

-----[ Insertion ]-----
List    196.335 ms (100 % -> x1)
Vector  401.454 ms (204 % -> x2)

-----[ Iteration ]-----
Vector  11.769 ms (100 % -> x1)
List    63.3059 ms (537 % -> x5)

-----[ Deletion ]-----
List    63.6138 ms (100 % -> x1)
Vector  1355.97 ms (2131 % -> x21)

Future work ☕

• Add metric configuration (only ms for now)
• Implement multi iterations support with stats