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Author Topic: Weekly pool and network statistics  (Read 85479 times)
MrTeal
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March 02, 2015, 03:10:59 PM
 #541

I believe there is an error in the pool statistics table on the mining pool page for Eligius' hash rate.

I have a question about the CDF vs luck included in that table. Luck is a straightforward to calculate, but it seems counter-intuitive that the CDF for GHash would be higher than for Kano.is, even though the luck was worse for Kano. I'd guess there is a factor in there that accounts for the increased hashrate of GHash leading to less variance and a tendency to stick closer to 1.0 luck, but I'd be interested to see how you calculated the CDF for that.
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organofcorti
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March 03, 2015, 04:07:43 AM
 #542

I believe there is an error in the pool statistics table on the mining pool page for Eligius' hash rate.

I'll check it out. What do you think it should be?

Edit: You're right, it's wrong, but it's the data I got from the API - it might have been down for a while. The data should be ok by next week.

I have a question about the CDF vs luck included in that table. Luck is a straightforward to calculate, but it seems counter-intuitive that the CDF for GHash would be higher than for Kano.is, even though the luck was worse for Kano. I'd guess there is a factor in there that accounts for the increased hashrate of GHash leading to less variance and a tendency to stick closer to 1.0 luck, but I'd be interested to see how you calculated the CDF for that.

Good question, and it comes up a lot. The CDF is a function of mean(submitted shares)/(expected shares) and of number of blocks solved. The more blocks solved, the narrower the CDF should be. You can play with it here:

In this example, the number of blocks solved is 100, and the mean(submitted shares/expected shares) is 1.1:

http://www.wolframalpha.com/input/?i=CDF%5BErlangDistribution%5B100%2C+100%5D%2C++1.1%5D

Generally, use

Code:
CDF[ErlangDistribution[nblocks, nblocks],  mean(submitted shares/expected shares)]

Bitcoin network and pool analysis 12QxPHEuxDrs7mCyGSx1iVSozTwtquDB3r
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MrTeal
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March 03, 2015, 02:52:06 PM
 #543

I believe there is an error in the pool statistics table on the mining pool page for Eligius' hash rate.

I'll check it out. What do you think it should be?

Edit: You're right, it's wrong, but it's the data I got from the API - it might have been down for a while. The data should be ok by next week.

I have a question about the CDF vs luck included in that table. Luck is a straightforward to calculate, but it seems counter-intuitive that the CDF for GHash would be higher than for Kano.is, even though the luck was worse for Kano. I'd guess there is a factor in there that accounts for the increased hashrate of GHash leading to less variance and a tendency to stick closer to 1.0 luck, but I'd be interested to see how you calculated the CDF for that.

Good question, and it comes up a lot. The CDF is a function of mean(submitted shares)/(expected shares) and of number of blocks solved. The more blocks solved, the narrower the CDF should be. You can play with it here:

In this example, the number of blocks solved is 100, and the mean(submitted shares/expected shares) is 1.1:

http://www.wolframalpha.com/input/?i=CDF%5BErlangDistribution%5B100%2C+100%5D%2C++1.1%5D

Generally, use

Code:
CDF[ErlangDistribution[nblocks, nblocks],  mean(submitted shares/expected shares)]

Thanks, I knew I was missing something. It's not the average CDF of the block which makes a lot of sense, since that essentially is the same information of the average luck and wouldn't actually tell you how likely that level of luck is. With Bitcoin mining, the generation of a block is an exponential distribution; so from a quick Wikipediaing of the Erlang distribution, for a stochastic process like Bitcoin mining the expected luck (inclusive of orphaned blocks) is 1.0. Then for 100 blocks, your rate is 100, and k is chosen to give you the mean value of 1 (so 100 as well).
organofcorti
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March 08, 2015, 08:47:12 PM
 #544

Now that I produce three weekly posts I can't really reproduce them here anymore so I'm going to link to them and include some interesting images instead.

Current Block Maker Statistics
Current Network Statistics
Current Mining Pool Statistics

Previous Block Maker Statistics
Previous Network Statistics
Previous Mining Pool Statistics








Check http://organofcorti.blogspot.com for other interesting bitcoin related posts.

Follow me on Twitter @oocBlog for notification of new posts as soon as I publish.

Bitcoin network and pool analysis 12QxPHEuxDrs7mCyGSx1iVSozTwtquDB3r
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Sine(X)
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March 09, 2015, 05:18:14 AM
 #545

Still more bad luck for GHash.IO, plus a DDOS this week, which has caused a precipitous drop in hashrate
Ghash lost 12Phs, BW Pool added 12 Phs. Looks like transit Phs, doesn't it?
organofcorti
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March 09, 2015, 05:29:18 AM
 #546

Still more bad luck for GHash.IO, plus a DDOS this week, which has caused a precipitous drop in hashrate
Ghash lost 12Phs, BW Pool added 12 Phs. Looks like transit Phs, doesn't it?

I still don't know anyone mining at BW Pool, only cloud mining.

Bitcoin network and pool analysis 12QxPHEuxDrs7mCyGSx1iVSozTwtquDB3r
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MrTeal
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March 09, 2015, 02:49:05 PM
 #547

As an electrical engineer, the graph of Eligius' hashrateprofitability makes me happy on the inside.
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March 09, 2015, 03:10:43 PM
 #548

As a bitcoin enthusiast, the graph of kano.is is so random it could only be a graph related to block finding Cheesy

Pool: https://kano.is BTC: 1KanoiBupPiZfkwqB7rfLXAzPnoTshAVmb
CKPool and CGMiner developer, IRC FreeNode #ckpool and #cgminer kanoi
Help keep Bitcoin secure by mining on pools with Stratum, the best protocol to mine Bitcoins with ASIC hardware
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March 15, 2015, 12:34:05 PM
 #549

As an electrical engineer, the graph of Eligius' hashrateprofitability makes me happy on the inside.

As a Sine(X) I also like this graph Smiley
organofcorti
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March 25, 2015, 11:05:33 AM
 #550

Now that I produce three weekly posts I can't really reproduce them here anymore so I'm going to link to them and include some interesting images instead.

Current Block Maker Statistics
Current Network Statistics
Current Mining Pool Statistics

Previous Block Maker Statistics
Previous Network Statistics
Previous Mining Pool Statistics








Check http://organofcorti.blogspot.com for other interesting bitcoin related posts.

Follow me on Twitter @oocBlog for notification of new posts as soon as I publish.

Bitcoin network and pool analysis 12QxPHEuxDrs7mCyGSx1iVSozTwtquDB3r
follow @oocBlog for new post notifications
organofcorti
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March 30, 2015, 05:27:56 AM
 #551

Now that I produce three weekly posts I can't really reproduce them here anymore so I'm going to link to them and include some interesting images instead.

Current Block Maker Statistics
Current Network Statistics
Current Mining Pool Statistics

Previous Block Maker Statistics
Previous Network Statistics
Previous Mining Pool Statistics








Check http://organofcorti.blogspot.com for other interesting bitcoin related posts.

Follow me on Twitter @oocBlog for notification of new posts as soon as I publish.

Bitcoin network and pool analysis 12QxPHEuxDrs7mCyGSx1iVSozTwtquDB3r
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abracadabra
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April 01, 2015, 12:51:42 AM
 #552

Eclipse and Ghash haven't hit a "lucky streak" since October. 


organofcorti
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April 01, 2015, 01:01:49 AM
 #553

Eclipse and Ghash haven't hit a "lucky streak" since October.  

Eclipse is not getting many blocks so their unluckiness in that period of time is not unlikely. I've been in talks with GHash, trying to figure out what's going on there.

Bitcoin network and pool analysis 12QxPHEuxDrs7mCyGSx1iVSozTwtquDB3r
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abracadabra
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April 01, 2015, 01:03:31 AM
 #554

Eclipse and Ghash haven't hit a "lucky streak" since October.  

Eclipse is not getting many blocks so their unluckiness in that period of time is not unlikely. I've been in talks with GHash, trying to figure out what's going on there.

Gotcha.. what's your take on Ghash?  Wink

organofcorti
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April 01, 2015, 01:05:22 AM
 #555

Eclipse and Ghash haven't hit a "lucky streak" since October.  

Eclipse is not getting many blocks so their unluckiness in that period of time is not unlikely. I've been in talks with GHash, trying to figure out what's going on there.

Gotcha.. what's your take on Ghash?  Wink

Don't know yet. As soon as I'm sure I know what's going on, I'll post.

Bitcoin network and pool analysis 12QxPHEuxDrs7mCyGSx1iVSozTwtquDB3r
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Sine(X)
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April 07, 2015, 12:32:39 PM
 #556

I think BitClub doesn't have 34Phs.. They resolved 2 blocks Apr02 and then only 1 block Apr07
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April 07, 2015, 12:47:19 PM
 #557

I think BitClub doesn't have 34Phs.. They resolved 2 blocks Apr02 and then only 1 block Apr07

So it was probably just very good luck, or they might have hired some machines so they could begin with a bang.

Bitcoin network and pool analysis 12QxPHEuxDrs7mCyGSx1iVSozTwtquDB3r
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organofcorti
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April 13, 2015, 02:18:39 PM
 #558

Now that I produce three weekly posts I can't really reproduce them here anymore so I'm going to link to them and include some interesting images instead.

Current Block Maker Statistics
Current Network Statistics
Current Mining Pool Statistics

Previous Block Maker Statistics
Previous Network Statistics
Previous Mining Pool Statistics








Check http://organofcorti.blogspot.com for other interesting bitcoin related posts.

Follow me on Twitter @oocBlog for notification of new posts as soon as I publish.

Bitcoin network and pool analysis 12QxPHEuxDrs7mCyGSx1iVSozTwtquDB3r
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organofcorti
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April 26, 2015, 02:41:39 PM
 #559



Current Block Maker Statistics
Current Network Statistics
Current Mining Pool Statistics

Previous Block Maker Statistics
Previous Network Statistics
Previous Mining Pool Statistics








Check http://organofcorti.blogspot.com for other interesting bitcoin related posts.

Follow me on Twitter @oocBlog for notification of new posts as soon as I publish.

Bitcoin network and pool analysis 12QxPHEuxDrs7mCyGSx1iVSozTwtquDB3r
follow @oocBlog for new post notifications
organofcorti
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May 03, 2015, 12:34:23 PM
 #560

Now that I produce three weekly posts I can't really reproduce them here anymore so I'm going to link to them and include some interesting images instead.

Current Block Maker Statistics
Current Network Statistics
Current Mining Pool Statistics

Previous Block Maker Statistics
Previous Network Statistics
Previous Mining Pool Statistics








Check http://organofcorti.blogspot.com for other interesting bitcoin related posts.

Follow me on Twitter @oocBlog for notification of new posts as soon as I publish.

Bitcoin network and pool analysis 12QxPHEuxDrs7mCyGSx1iVSozTwtquDB3r
follow @oocBlog for new post notifications
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