On Tuesday, February 09, 2016 10:00:44 PM Matt Corallo via bitcoin-dev wrote: > Indeed, we could push for more place by just always having one 0-byte, > but I'm not sure the added complexity helps anything? ASICs can never be > designed which use more extra-nonce-space than what they can reasonably > assume will always be available, so we might as well just set the > maximum number of bytes and let ASIC designers know exactly what they > have available. Currently blocks start with at least 8 0-bytes. We could > just say minimum difficulty is now 6 0-bytes (2**16x harder) and reserve > those?
The extranonce rolling doesn't necessarily need to happen in the ASIC itself. With the current extranonce-in-gentx, an old RasPi 1 can only handle creating work for up to 5 Gh/s with a 500k gentx. Furthermore, there is a direct correlation between ASIC speeds and difficulty, so increasing the extranonce space dynamically makes a lot of sense. I don't see any reason *not* to increase the minimum difficulty at the same time, though. Luke _______________________________________________ bitcoin-dev mailing list bitcoin-dev@lists.linuxfoundation.org https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev
