I'm running monerod on an Amazon EC2 instance with an SSD volume (
gp2 volume type), and synchronization from scratch gets extremely slow after I've used up my burst credits (allowing me up to 3000 IOPS for a limited time instead of 100). See also my question here for details.
My follow up question now is if PR #1506 will significantly decrease disk IOPS as a side effect of addressing issue #1463. The description says that the number of DB txn is reduced to 1 for each batch, and I'm assuming but am not entirely sure that this also means much fewer IOPS on the disk side.