dbgheap.cpp

// simple perf test for memory allocations
// bfilipek.com

#include <iostream>
#include <memory>
#include <vector>
#include <chrono>

int main()
{
	const int NUM_ELEMENTS = 100000;
	const int NUM_ITERS = 100;
	const int NUM_ALLOC = 100;

	//_asm int 3

	std::cout << std::hex;
	auto startTime = std::chrono::system_clock::now();
	for (int iter = 0; iter < NUM_ITERS; ++iter)
	{
		for (int allocCount = 0; allocCount < NUM_ALLOC; ++allocCount)
		{
			std::vector<int> testVec(NUM_ELEMENTS);
			std::unique_ptr<int[]> pTestMem(new int[NUM_ELEMENTS]);

			if (iter % 10 == 0 && allocCount == 0)
				std::cout << "pTestMem: " << pTestMem[0] << ", testVec: " << testVec[0] << std::endl;
		}
	}
	auto endTime = std::chrono::system_clock::now();
	auto elapsed = std::chrono::duration_cast<std::chrono::milliseconds>(endTime - startTime);
	std::cout << std::dec;
	std::cout << elapsed.count() << std::endl;

	return 0;
}