PCTuning fórum

durod píše:O cem mluvite? Jake zadne prodeje? Pri cene 4200$ za BTC se prodá vsechno vc vegy. V cine je energie levna, tohle se bude vyplacet jiz navzdy, již i nekteri analytici z Wall Street mluvi o cene 50 000

HEAD píše:vykon vegy v miningu proti GTX1070
https://abload.de/img/vega-64-hashrate-per-g4u8a.png

HEAD píše:A co s tou vegou chces jako tezit?Ethereum prochazi zmenou, ktera znici GPU mining
Zeptej se kohokoliv kdo tezi Ethereum a odpovi ti stejne.Obtiznost je tam tak silena, ze je temer nemozne se dostat na ROI a bude jeste daleko hur.
Momentalne tam probiha tzv obtiznostni bomba, ktera umele zvysuje obtiznost o desitky % kazdych par tydnu.

Btw 1bitcoin je 15ETH coz odpovida i +- dolarove cene 15x300=4500USD.Takze to neni o nic vyhodnejsi nez to prodavat na dolary.

Dukladne si prectete
https://www.reddit.com/r/EtherMining/co ... h=9c71f762

For the Ethereum Homestead release in March 2016, code was added to create a difficulty bomb on the Ethereum network, often referred to as 'The Ice Age'. The purpose of this code was to increase the difficulty of Ethereum mining over time as it came to the end of POW and into POS with the difficulty increasing exponentially as we got closer to the expected POS implementation. The original planned date at that time for POS was the end of 2016 but when they realised this was not feasible, the bomb was delayed and given a more gradual initial impact.



We are now coming towards the end of 2017 and as Casper has been delayed, we are in a situation were mining difficulty is increasing exponentially. To combat this, the devs are discussing another delay of the difficulty bomb, pushing it out by approx 16-17 months and giving themselves that time to finalise and implement Casper. After todays call, the current expectation is that this update will role out as part of the Metropolis Byzantium update which they are expecting to go live somewhere around the last week of September or first week of October depending on testing.

So what does this mean for us Miners?



I’m sure everyone here has been aware of the massive difficulty jumps we have seen while mining ETH over the last number of weeks / months. We have had 2 very significant spikes in the last month or so with the first coming around July 10th and the next coming around July 31st. Both of these spikes where caused by difficulty bombs with the next one expected to land on August 25th, the following one on September 24th and another on October 31st.



For those of you wondering what the real world impact of these bombs going off is, they are significantly increasing the amount of time it takes to mine blocks. Before one of the first bombs went off in mid May, it took on average about 14.5 secs to mine one block which contained 5 ETH. If you look at this chart https://etherscan.io/chart/blocktime you can see the exact times each subsequent bomb has gone off to the point we are at now were it is taking about 21 secs to mine 1 block of ETH. With the current implementation of Ice Age, this is what block times will look like over the coming bomb drops:



August 25th - 25 seconds
September 24th - 32 seconds
October 31st - 41 seconds



As you can see, the block times are increasing exponentially and by October 31st, it would take 41 secs to mine 1 block of 5 ETH, meaning we would earn approx half of what we do today. (Not taking into consideration any new miners coming on board which also drives difficulty up).

After the dev call today, we now know that the update to delay the bomb into 2018 will not happen until after the bomb drop on September 24th meaning there is going to be a very tight squeeze on miners over the coming weeks, possibly to the point of it costing more in electricity for some people than what they earn. To make it easy for you to calculate, whatever you earn today, it will be about 19% less after August 25th. Whatever you earn then, it will be about 28% less after September 24th. Again, none of this takes into consideration rising difficulty from potential new miners coming into the network.



When Metropolis Byzantium does go live, we will see the network return to approx 15sec block times however the issuance will likely reduce to 3. This means that we will essentially earn the same amount of ETH then as we will between Aug 25th and Sept 24th (3 per 15s is the same as 5 per 25s). With this happening, the only thing that will drive the difficulty of mining will be mining hash power so I would like to touch on that for a moment. Below is an overview of the mining hash increases we have seen in recent months:



1st May to 1st of June the total network mining hashing power grew from 22.85TH to 34.41 or 50.6%.
1st June to 1st of July it grew to 59.19TH or 72%.
1st July to 1st August it grew to 78.26TH or 32.2%.

However, from Aug 1st to Aug 11th, it has only grew to 79.86TH which is approx 2%. This massive drop off in mining hash power growth is directly related to the difficulty bumps we are seeing in the network. I expect that after the bomb on August 26th, we will see a significant number of miners leave the Ethereum network and move to other alt coins, massively impacting the profitability and difficulty of those coins as they go. I believe this will actually cause a regression in the Ethereum mining hash power through to the Metropolis Byzantium update. After this update, I expect our mining rewards will be equal to what we get after the August 26th which is going to be approx 20% less than what we get today. If that is going to be an issue for you, you may want to consider selling your rigs now or start researching what other coins you can mine to stay profitable.



In summary, it is going to be a very volatile few weeks for mining. After the difficulty increase on August 26th I expect we will see a large number of ETH miners move to other coins which will have a large impact both on those coin networks and coin prices. ETH rewards will be approx 20% less than what they are today and approx 50% from September 24th until whenever Metropolis Byzantium launches