How to test Cache memoization

Hi, I really need any information about how to create performance test only for Cache memoization.

Before

Cache::remember('posts', 60, function () {
    return Post::all();
});

After

Cache::memo()->remember('posts', 60, function () {
    return Post::all();
});

I'm not familiar with the flow behind cache memoization so I have no idea what should be considered when do performance testing.