Roughly 80/20 read to write. On the instance's gp3 EBS volume (which is pretty slow), we've pushed ~700 write transactions per second without much problem.
For small oltp workloads the locking is not going to be a problem. But stuff that holds the write lock for some measurable fraction of a second even will gum things up real fast. Transactions that need it for many seconds? You'll quickly be dead in the water.
For small oltp workloads the locking is not going to be a problem. But stuff that holds the write lock for some measurable fraction of a second even will gum things up real fast. Transactions that need it for many seconds? You'll quickly be dead in the water.