kano
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Linux since 1997 RedHat 4
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November 12, 2015, 03:27:30 PM |
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... because I'm still not convinced that slower machines even at equal hash speed have the same chances as faster ones... ...
It's simple maths. Each hash you do currently has a one in 65848255179.70261383 x 2^32 chance of finding a block (or 1 in 2.83x10^20) So if you do 500Trillion x 3600 hashes (500TH/s for an hour) or 1000Trillion x 1800 hashes (1PH/s for half an hour), in both cases you've done the same number of hashes thus the same chance of finding a block. In both cases that's 1 chance in 157 of finding a block. Of course it's all chances, no guarantees, but it is the same chances in the 2 cases. These is no magical correlation between one hash and the next, that's the whole point of the sha256 hash algorithm. Each hash has the same chance as the rest, no more and no less, and each hash result is 'randomly' independent of the previous.
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Ziploc
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November 12, 2015, 03:46:17 PM |
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... because I'm still not convinced that slower machines even at equal hash speed have the same chances as faster ones... ...
It's simple maths. Each hash you do currently has a one in 65848255179.70261383 x 2^32 chance of finding a block (or 1 in 2.83x10^20) So if you do 500Trillion x 3600 hashes (500TH/s for an hour) or 1000Trillion x 1800 hashes (1PH/s for half an hour), in both cases you've done the same number of hashes thus the same chance of finding a block. In both cases that's 1 chance in 157 of finding a block. Of course it's all chances, no guarantees, but it is the same chances in the 2 cases. These is no magical correlation between one hash and the next, that's the whole point of the sha256 hash algorithm. Each hash has the same chance as the rest, no more and no less, and each hash result is 'randomly' independent of the previous. yes these logic was already explained...but maybe you can explain this for me.....unfortunately I don't have specific stats as at that time I wasn't carrying much... I had an array of different GPUs... form 5700 series up to r9 290.... and I'm pretty sure the amount of blocks that 290 generated was way more important that the rest of all my gpus....and i used to have maybe 20 of them in total... however it was scypt and x11 algos.....i'm not sure if that matters..... also last year I was mining a cpu only prime algo coin... I had 5-6 pc mining ...from a laptop to powerfull gaming desktop....amd and intel cpus... the slower one never even found a block.....and all the mediums ones even if their total hash rate was way greater that my fastest desktop didn't even matched what that the fastest singe cpu mined..... all these makes me somehow perplexed....
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jyspik
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November 12, 2015, 04:16:16 PM |
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Here's what he means. lets say ive got: 25 antminer s1, giving me ~ 5 th or 1 antminer s7, giving me ~ 5th too. All of them are working fine, and using the same internet connection. But the probobility of finding a block with s7 might be higher, because its more efficient and each chip is faster and better. Or not? tadaam
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wmtomlinso
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November 12, 2015, 04:25:53 PM |
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if they are both mining at exactly 5.000 Th, the probability is the same.
Am i right?
I have a question for you guys - why is it so very common for the same pool to hit 2 consecutive blocks?
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hodedowe
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November 12, 2015, 04:27:03 PM |
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Here's what he means. lets say ive got: 25 antminer s1, giving me ~ 5 th or 1 antminer s7, giving me ~ 5th too. All of them are working fine, and using the same internet connection. But the probobility of finding a block with s7 might be higher, because its more efficient and each chip is faster and better. Or not? tadaam Not. Making hashes is instant. (Well, almost immediately instant. A single hash is not hard math for ASICS). Better chips only give you more hashes for the same power. Getting that hash is like scratching off a lottery ticket. Sometimes - most times - you get nothing, or $3.00, or some baloney prize. But imagine if you could stand there and scratch off 5 billion tickets per hour. You'd be way more likely to win the big prize vs someone that scratched 10 tickets per hour. I've said it before, you can "find a block" with a CPU miner or a high powered S7. You're just way more likely to find it with an S7 because you're scratching off a bazillion times more tickets. Or you can think about it like dating. You can go up to one girl a week and say, "Hey, leme get dat booty, baby!" and get your face slapped. That's a hash that wasn't a block. You can then clone yourself to the point you can ask 10,000,000 girls a night the same question and one of you will eventually find a slutty girl that likes it. He is getting laid. Ding! That's a block found. Now we can talk about aids. Say you sleep with one slutty girl. That's a hash.....
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Solo mining is alive and profitable! Helped? Thanks! 1CXRFh4bDVFBsUzoHMMDbTMPcBP14RUTus
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vortexz
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November 12, 2015, 04:38:23 PM |
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Here's what he means. lets say ive got: 25 antminer s1, giving me ~ 5 th or 1 antminer s7, giving me ~ 5th too. All of them are working fine, and using the same internet connection. But the probobility of finding a block with s7 might be higher, because its more efficient and each chip is faster and better. Or not? tadaam ] 5 TH is 5 Th no matter if it comes from 1000 S1 or one S7
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jyspik
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November 12, 2015, 04:53:55 PM |
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Here's what he means. lets say ive got: 25 antminer s1, giving me ~ 5 th or 1 antminer s7, giving me ~ 5th too. All of them are working fine, and using the same internet connection. But the probobility of finding a block with s7 might be higher, because its more efficient and each chip is faster and better. Or not? tadaam ] 5 TH is 5 Th no matter if it comes from 1000 S1 or one S7 Yeah i know. Thats how everybody thinks it is, because everybody keeps saying the same thing. Eventually everybody bilieves that it is the same... But maybe.. just maybe, there is a difference beetween one very fast device, versus 1000 slower devices.
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Mikestang
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November 12, 2015, 05:01:53 PM |
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But maybe.. just maybe, there is a difference beetween one very fast device, versus 1000 slower devices.
Except that there's not: zip zero ziltch no difference. A hash is a hash, all that matters is how many calcs per second you can perform. As long as your 1000 devices are pointed to the same pool getting the same work it will result in the same chance at solving a block.
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hodedowe
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November 12, 2015, 05:03:31 PM |
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Yeah i know. Thats how everybody thinks it is, because everybody keeps saying the same thing. Eventually everybody bilieves that it is the same...
But maybe.. just maybe, there is a difference beetween one very fast device, versus 1000 slower devices.
Or maybe not. That's like saying I make biscuits. You make biscuits. We both use the same recipe and we both turn out 100 biscuits every hour. But somehow my biscuits are slightly better than yours. A hash is a hash is a hash. EDIT: Heh, Mike beat me to it. What he said.
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Solo mining is alive and profitable! Helped? Thanks! 1CXRFh4bDVFBsUzoHMMDbTMPcBP14RUTus
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Ziploc
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November 12, 2015, 05:07:45 PM |
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ok then now plz explain it to me why it takes on average 10min to resolve the block ? if it's instant...the winner is chosen instantly then why that delay....? the fast asiscs are sleeping 9m59sec...and for the the slow ones the instant moment lasts for 10min
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wmtomlinso
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November 12, 2015, 05:21:51 PM |
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Statisticians, Futurists, Actuaries:
why is it so very common for the same pool to hit 2 consecutive blocks?
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ezeminer
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Lie down. Have a cookie
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November 12, 2015, 05:23:38 PM |
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ok then now plz explain it to me why it takes on average 10min to resolve the block ? if it's instant...the winner is chosen instantly then why that delay....? the fast asiscs are sleeping 9m59sec...and for the the slow ones the instant moment lasts for 10min The difficulty adjusts to fulfill the 10 minute average. It can vary though on how fast blocks are solved. Sometimes the network is extremely lucky and cranks out a couple blocks in a minute, sometimes it can take an hour to crank out the blocks. That's the beauty of the difficulty recalculations built into the bitcoin code. If you mean resolve the block, confirmations have to be done across miners to confirm the legitimacy and the integrity of transactions. I know Kano is better at explaining this stuff incase I have it wrong.
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armadora
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November 12, 2015, 06:06:38 PM |
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for Ckpool mining do i use nice hash or westhash for rent? or they are same performance for ckpool solo mining?
West hash should be better,but I have hit with either one. Just use the cheapest price. The Ckpool server is USA based that is why westhash should be better,but the latency edge is small. If you want to base it on percent I would think less then 1. So if price is .0075 at nice and 0.0076 at west , nice would be better. If both are at .0075 west would be better. .35 spent at .0072 is about 77 to 1 shot at a block. if price same westhash better, but if nicehash cheaper than west; we can use nicehash. thank you very much for good and detailed answer.
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Solare
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November 12, 2015, 07:23:26 PM |
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Trying to figure out making order of high th/ph for 20 minutes, for .10192263
Any help? using nicehash
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-ck (OP)
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Ruu \o/
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November 12, 2015, 08:47:29 PM |
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BTW where is CK node located ? EU or USA
West coast USA. The pool doesn't earn enough to run in more than one location - cheap VPSs do not perform well so I'd rather have one well performing one than many poor ones. That's usually why you shouldn't trust random newcomers setting up a pool for the first time as the performance of the pool matters a lot.
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Developer/maintainer for cgminer, ckpool/ckproxy, and the -ck kernel 2% Fee Solo mining at solo.ckpool.org -ck
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-ck (OP)
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Ruu \o/
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November 12, 2015, 09:00:43 PM |
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why is it so very common for the same pool to hit 2 consecutive blocks?
Because that pool is big enough to solve blocks more frequently. It is not very common. It only happens with large pools.
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Developer/maintainer for cgminer, ckpool/ckproxy, and the -ck kernel 2% Fee Solo mining at solo.ckpool.org -ck
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ezeminer
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Lie down. Have a cookie
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November 12, 2015, 10:35:52 PM |
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Trying to figure out making order of high th/ph for 20 minutes, for .10192263
Any help? using nicehash
You have roughly a 1 in 250 chance. When renting, it is more how much you put in, rather than how much you rent.
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Ziploc
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November 12, 2015, 10:46:57 PM |
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maybe we should do a GROUP hashrent ?
someone enlightened might make some calculations/estimations and see what are the odds/chances,etc
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philipma1957
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'The right to privacy matters'
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November 12, 2015, 10:49:01 PM |
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Trying to figure out making order of high th/ph for 20 minutes, for .10192263
Any help? using nicehash
You have roughly a 1 in 250 chance. When renting, it is more how much you put in, rather than how much you rent. ezeminer is correct. what you do to get an idea odds is go to bitcoinwisdom. go to this chart https://bitcoinwisdom.com/bitcoin/difficultyput in 1 th and see your daily earnings for this adjustment earnings are 0.007637 per th so if you pay less then that price the odds are in your favor. think like the 3 digit number the lotto the goverment pays 500 to 600 to 1 the real odds are 1000 to 1 so if you bet 1 dollar a day and I give you 1050 to one you could make some money in the long run. maybe not that day but day after day bet after bet most likely you would end up ahead. So if you rent hash under current price of 0.007637 a th and mine on ck's pool you should win. does not mean you will win. @ ziploc we have done it more then one time. and here it is again 0.007637 is the magic number to pay. but you need to take into account fees and the correct number becomes about 0.0073 per th.
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Mikestang
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November 13, 2015, 12:03:45 AM |
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maybe we should do a GROUP hashrent ?
It has been not only discussed here before, but folks have done it. I think the consensus was it was too much work and you need a really trusted person to devote their time to run it and distribute funds. Probably the reasons it hasn't happened again. The current iteration would the the gekko stick solo club, a bit more simple that hashrent but still not without its complexities, need for trust, or time requirements.
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