.NET Collections and the Large Object Heap (LOH)

Question

Are .NET collections with large number of items apt to be stored in the LOH?

I\'m curious about List and Dictionary specifically. In my code, I store a large number

Answer 1

Dictionary has O(LOG N) vector for the key/value, so in 40K+ objects your pretty safe. As said here before List is implemented as array so big list are indeed on the LOH. You can check if you object is on the LOH using SOS.