C# Dictionary Performance

Question

I am using a Dictionary to store data, and will be caching it. I would like to avoid server memory issues, and have good performance by limiting the size of the Dictionary&

Answer 1

One thing to keep in mind is that when you initialize a Dictionary you can set the initial capacity. If you know how big your list will be, set it to the correct size and you won't have any "wasted" space. If you don't specify the capacity, it will set a default starting capacity and resize/grow as needed, which takes a performance hit.