For the long term performance stability test, we set the drive up to run a 20-minute 4K random test with a 30% write, 70% read split, at a Queue Depth of 256 over the entire disk. The SSD860 PRO averaged 91,725 IOPS for the test with a performance stability of 97% which is something you should expect from a data center drive never mind a drive aimed at the consumer market.
Great review. Thanks!