README.md

Benchmark for Malloc

This project shows the performance comparsion between system built-in malloc and tcmalloc.

Besides that, it is also shows a example to integrated tcmalloc via CMake build system.

Bench malloc result

Hardward environment:

Notebook: Dell G3 3590
CPU: Intel(R) Core(TM) i7-9750H CPU @ 2.60GHz
RAM: 32GB

Software environment:

Windows: Windows 10.0.19045
Compiler: Visual Studio 2022

Linux: Linux xu-G3-3590 5.15.0-60-generic #66~20.04.1-Ubuntu SMP Wed Jan 25 09:41:30 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux
Compiler: gcc version 9.4.0

* Note: Windows and Linux is due boot in the same SATA disk.

Benchmark code:

#define COUNT 1000*1000

void bench_malloc_func()
{
	for (size_t i = 0; i < COUNT; ++i)
	{
		int malloc_size = i * sizeof(int);
		int * pInt = (int*)malloc(malloc_size);
		free(pInt);
	}
}

void bench_malloc_and_access_func()
{
	for (size_t i = 0; i < COUNT; ++i)
	{
		int malloc_size = i * sizeof(int);
		int * pInt = (int*)malloc(malloc_size);

		memset(pInt, 0, malloc_size);
		free(pInt);
	}
}

Windows built-in malloc consumer a lot of time during this benchmark.

Build from source

Get the Source Code

git clone --recursive https://github.com/xuhancn/bench_malloc
cd bench_malloc
# if you are updating an existing checkout
git submodule sync
git submodule update --init --recursive

Genarate project from cmake

mkdir build
cd build
cmake ..

Build project

On Linux

make

On Windows

Need run command in Visual Studio Developer Command Prompt

msbuild bench_malloc.sln /property:Configuration=Release