What are the performance benchmarks for C# collections?

What are the performance benchmarks for C# collections?

C# collections vary in performance based on their type. For example, List<T> is generally faster for indexed access, while Dictionary<TKey, TValue> excels in lookups.

Can you provide specific benchmarks for List<T> and Dictionary<TKey, TValue>?

Sure! For List<T>, accessing an element by index is O(1), while adding an element is O(1) on average. For Dictionary<TKey, TValue>, lookups are O(1) on average, but insertion can be O(n) in the worst case.

How do these benchmarks affect my choice of collection?

Choosing the right collection depends on your use case. If you need fast lookups, go for Dictionary<TKey, TValue>. If you need ordered data with frequent additions, List<T> might be better.

Are there any other collections I should consider?

Yes, consider HashSet<T> for unique items with fast lookups, or LinkedList<T> for frequent insertions and deletions.