4 ms·
I'm not sure about that. Most miner operations in the US run only a fraction of the day to take advantage of electrical savings that a lot of operations in Chin
by mrits 6y ago
I'm not sure about that. Most miner operations in the US run only a fraction of the day to take advantage of electrical savings that a lot of operations in China wouldn't be doing. So if miners started returning higher yields we would output a larger hash rate. If we actually needed to protect against a 51% attack we could ramp up accordingly.
- gruez 6y agoThe difficulty adjustment only happens every 2016 blocks (~2 weeks), so the higher yields wouldn't happen unless they're down for an extended period of time.
- mrits 6y agoThat is correct but I don't see why you are pointing it out.
- gruez 6y agoIt's a reply at this part of GP's comment: >So if miners started returning higher yields we would output a larger hash rate
- mrits 6y agoThat statement was to show why there is room to increase hash rate and not how you'd defend against a 51% attack. Most of the miners in the US are not mining for a significant portion of the day.
- ndr 6y agoHow much longer than 2 weeks will it take given the sudden drop in miners?
- gruez 6y agoIt depends on how long ago the previous retarget is and the current hashrate. The retarget is based on blocks, so if the retarget was 1008 blocks ago, but hashrate dropped by 50%, then it'll take 2 weeks until the next retarget. There's a chart here with the current estimates: https://fork.lol/pow/retarget https://fork.lol/pow/retarget