Whenever a transaction is received by a node, the node verifies its validity. To that end, it checks for each transaction input whether that input is part of the UTXO set. It is my understanding that the UTXO set is stored in the chainstate database, which is held in a
I previously thought that he UTXO set was kept available in memory, but since I've learned that it is currently about 1.2GiB in size that seems unlikely.
So, I assume the chainstate-db is stored on disk, but accessed multiple times per second to check transaction inputs. What amount of memory usage does this induce on a node?