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Author Topic: [1500 TH] p2pool: Decentralized, DoS-resistant, Hop-Proof pool  (Read 1046112 times)
windpath
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March 25, 2015, 01:29:46 PM
 #12361

Bitcoin network touched 400 PH/s yesterday.

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jonnybravo0311
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March 25, 2015, 01:37:31 PM
 #12362

Bitcoin network touched 400 PH/s yesterday.
Yeah, that was just me testing out my new prototype miners...

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March 25, 2015, 01:40:37 PM
 #12363

Bitcoin network touched 400 PH/s yesterday.
Yeah, that was just me testing out my new prototype miners...


Green mining at its purest!

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March 25, 2015, 02:18:52 PM
 #12364

Bitcoin network touched 400 PH/s yesterday.
Yeah, that was just me testing out my new prototype miners...
http://i.imgur.com/z5LicZD.jpg

Lol, love it.

0.67 hashes per day mining with pencil and paper: http://www.righto.com/2014/09/mining-bitcoin-with-pencil-and-paper.html

jonnybravo0311
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March 25, 2015, 02:36:44 PM
 #12365

Bitcoin network touched 400 PH/s yesterday.
Yeah, that was just me testing out my new prototype miners...
http://i.imgur.com/z5LicZD.jpg

Lol, love it.

0.67 hashes per day mining with pencil and paper: http://www.righto.com/2014/09/mining-bitcoin-with-pencil-and-paper.html
I love the energy efficiency comparison he does between manual mining and hardware... Donut powered mining! Grin

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IYFTech
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March 25, 2015, 03:41:46 PM
 #12366

Holy moly - 3.5PH  Huh

Far too much hash, diff through the roof - sorry guys, I'm off. I'll pop back when it's dropped again  Sad

EDIT: Typo, I meant PH of course....... Tongue

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windpath
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March 25, 2015, 04:13:35 PM
 #12367

Holy moly - 3.5TH  Huh

Far too much hash, diff through the roof - sorry guys, I'm off. I'll pop back when it's dropped again  Sad

I'd like to see us around 4PH/s, 1% of network... Keep variance tolerable.

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March 25, 2015, 05:47:10 PM
 #12368

Holy moly - 3.5PH  Huh

Far too much hash, diff through the roof - sorry guys, I'm off. I'll pop back when it's dropped again  Sad

I'd like to see us around 4PH/s, 1% of network... Keep variance tolerable.

Well, it was ~4PH for most of November last year & it didn't help then. Nothing has changed since then apart from the higher diff, so I can't see 4PH making any difference now either. Same old story I guess...... Tongue

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March 26, 2015, 03:35:24 PM
 #12369

Holy moly - 3.5PH  Huh

Far too much hash, diff through the roof - sorry guys, I'm off. I'll pop back when it's dropped again  Sad

I'd like to see us around 4PH/s, 1% of network... Keep variance tolerable.

Well, it was ~4PH for most of November last year & it didn't help then. Nothing has changed since then apart from the higher diff, so I can't see 4PH making any difference now either. Same old story I guess...... Tongue

I'm trying to understand what is wrong with the code.  What problems occur when the Hash rises.   Would the pool not be doing ok at 3-4 PH/s?   Wouldn't it not average a block per day, at that rate?   And if so, would smaller miners be disadvantaged?

What needs to change in the code?
jonnybravo0311
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March 26, 2015, 03:45:13 PM
 #12370

Holy moly - 3.5PH  Huh

Far too much hash, diff through the roof - sorry guys, I'm off. I'll pop back when it's dropped again  Sad

I'd like to see us around 4PH/s, 1% of network... Keep variance tolerable.

Well, it was ~4PH for most of November last year & it didn't help then. Nothing has changed since then apart from the higher diff, so I can't see 4PH making any difference now either. Same old story I guess...... Tongue

I'm trying to understand what is wrong with the code.  What problems occur when the Hash rises.   Would the pool not be doing ok at 3-4 PH/s?   Wouldn't it not average a block per day, at that rate?   And if so, would smaller miners be disadvantaged?

What needs to change in the code?
To put it simply, the larger the hash rate of the pool, the more difficult it becomes to find a share and get it on the chain for payout.  It's precisely the opposite problem of your more traditional pool.  The higher the difficulty, the more variance experienced by the smaller miner, which discourages smaller miners from mining here.

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March 26, 2015, 06:02:15 PM
 #12371

To put it simply, the larger the hash rate of the pool, the more difficult it becomes to find a share and get it on the chain for payout.  It's precisely the opposite problem of your more traditional pool.  The higher the difficulty, the more variance experienced by the smaller miner, which discourages smaller miners from mining here.
What he said.

A few months back when the pool was around 2PH the share difficulty for P2Pool rose to the point where more often than not if you were mining with less than the equivalent of an S1 (200GH/s) you wouldn't lodge a share within 1 day, which would mean all your effort for the day would end up not counting and you were essentially mining for nothing, and you wouldn't receive any credit towards the block rewards.

In addition, a single large miner could in effect swamp out all smaller miners on the node, because the larger miners would raise the share difficulty which was appropriate for the larger miner, but not good for the smaller miners.  If the larger miner was not considerate or couldn't break up the hashrate into smaller chunks, it was bad for the rest of the miners on the node.

The higher the pool hashrate, the higher the share difficulty, the harder it is for small miners to solve shares and they lose out.  Eventually you're talking about even an S3 not making any shares on the chain in time, which at this point there's still a ton of them deployed.
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March 26, 2015, 06:37:28 PM
 #12372

To put it simply, the larger the hash rate of the pool, the more difficult it becomes to find a share and get it on the chain for payout.  It's precisely the opposite problem of your more traditional pool.  The higher the difficulty, the more variance experienced by the smaller miner, which discourages smaller miners from mining here.
What he said.

A few months back when the pool was around 2PH the share difficulty for P2Pool rose to the point where more often than not if you were mining with less than the equivalent of an S1 (200GH/s) you wouldn't lodge a share within 1 day, which would mean all your effort for the day would end up not counting and you were essentially mining for nothing, and you wouldn't receive any credit towards the block rewards.

In addition, a single large miner could in effect swamp out all smaller miners on the node, because the larger miners would raise the share difficulty which was appropriate for the larger miner, but not good for the smaller miners.  If the larger miner was not considerate or couldn't break up the hashrate into smaller chunks, it was bad for the rest of the miners on the node.

The higher the pool hashrate, the higher the share difficulty, the harder it is for small miners to solve shares and they lose out.  Eventually you're talking about even an S3 not making any shares on the chain in time, which at this point there's still a ton of them deployed.

Is it as simple as sub-dividing the shares and/or reducing the time between shares?  In concept, of course.
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March 26, 2015, 08:05:53 PM
 #12373

To put it simply, the larger the hash rate of the pool, the more difficult it becomes to find a share and get it on the chain for payout.  It's precisely the opposite problem of your more traditional pool.  The higher the difficulty, the more variance experienced by the smaller miner, which discourages smaller miners from mining here.
What he said.

A few months back when the pool was around 2PH the share difficulty for P2Pool rose to the point where more often than not if you were mining with less than the equivalent of an S1 (200GH/s) you wouldn't lodge a share within 1 day, which would mean all your effort for the day would end up not counting and you were essentially mining for nothing, and you wouldn't receive any credit towards the block rewards.

In addition, a single large miner could in effect swamp out all smaller miners on the node, because the larger miners would raise the share difficulty which was appropriate for the larger miner, but not good for the smaller miners.  If the larger miner was not considerate or couldn't break up the hashrate into smaller chunks, it was bad for the rest of the miners on the node.

The higher the pool hashrate, the higher the share difficulty, the harder it is for small miners to solve shares and they lose out.  Eventually you're talking about even an S3 not making any shares on the chain in time, which at this point there's still a ton of them deployed.

Is it as simple as sub-dividing the shares and/or reducing the time between shares?  In concept, of course.

Unfortunately I don't believe it's that simple.  I'm no developer, but from my understanding it's quite an involved issue within the code and not easily fixed.  Hence the reason it's sat for so long like this... I'm sure there's capable devs who would have done it if it were not too involved already.
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