Yea, Optane is really fast!

I would like to see a witness-server running on Optane Memory, to see how it goes. If the tests are successful, then I guess every blockchain project should use Optane, what you think?

IMHO we need to do extensive tests before deciding. For example for the full node we need a lot more testing as the RocksDB performance looks little weird to me as per the results here : http://www.lmdb.tech/bench/optanessd/ So in the case of witness nodes also, there may be surprises that we have to test extensively. But I feel if we test for STEEM, it can be generalized for other Graphene based blockchains too.

I have requested for access from Packet + Intel & if we can get some hardware, extensive tests can be done. I think we will have to do

1. Tests with witness and run extensive tests
2. Tests in the fullRPC node and benchmark the RocksDB storage (engine)