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Author Topic: [1500 TH] p2pool: Decentralized, DoS-resistant, Hop-Proof pool  (Read 2032721 times)
maqifrnswa
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May 03, 2013, 08:04:54 PM
 #5221

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Could you post the line from the p2pool program feed that looks like:
New work for worker! Difficulty: 0.000200 Share difficulty: 0.994552 Total block value: 50.210500 LTC including 10 transactions

It's still the same as mentioned above:  "New work for worker! Difficulty: 0.232827 Share difficulty: 5.000000 Total block value: 53.123000 LTC including 45 transactions"  This is using: Usrnme/5+5

P2pool version is: 11.3 (I tried 11.4, that seemed to decrease my share rate further)  Cgminer version: 3.1.0.

I'm receiving payouts.  The odd behavior is receiving consistent share/payout per block of .45 LTC for 12+ hours, then it drops to .10 for another 12 + hours.  This happens when the p2pool node has been operating fine, along with all the miners connected.  Smooth & even hashrates.  The overall pool hashrate has a mean score of 580MH/s.  I would anticipate a much lower payout if the pool hashrate jumped to 1,200MH/s, but it stays within 100-150+- MH/s variance of the mean score.  My efficiency is normally between 110%-120%.

Thank you for the reply. 

Thanks - I think this shows what's wrong:

1) your +5 difficulty is way to high so p2pool has already reduced it down to .232 (otherwise it would get no statistics)
2) the /5 difficulty is causing 200% higher variance than is typical. The payouts change so much because you are only submitting a rare high difficulty share instead of frequent low difficulty shares. p2pool is not a PPS payout system, but a PPLNS. When you find a share, you will get paid out every time p2pool finds a block for some period of time. If you find shares infrequently, there will be much variance. With a /5 difficulty, you'll find shares infrequently.

Both of those settings won't affect your expected or average payout, just change the variance and frequency of payouts.

i'd try one of these two:
1) don't use /difficulty+difficulty at all and let p2pool tune it for you (especially good if you're a small miner)
2) If you're a bigger miner and want to tune your difficulty, perhaps trying /2+.0002 as a starting point and tune as you see fit. If you're payout variance is too high, get rid of the /2. If you're statistics reporting to p2pool is too much (crashing the server) then increase +.0002 to something higher (or lower if you want more accurate statistics)
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May 03, 2013, 09:27:31 PM
 #5222

Can't connect to p2pool. Can't find any peers...

Edit: now I can, but I have tried everything last night and was unable to connect to any peer. Restarted everything I could.
Searinox
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May 04, 2013, 05:14:49 AM
 #5223

My getwork latency has been fine for close to a month now. Suddenly a day ago it spiked up from 0.1 to 1 second and my payout was obviously impacted. I restarted p2pool but to no avail. Pinging my router and google also shows I have low latency. Why then has p2pool lag jumped all of a sudden?

EDIT: Okay this was apparently bitcoin-qt's fault. I restarted it and all is well.
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May 04, 2013, 11:53:55 AM
 #5224

Can't connect to p2pool. Can't find any peers...

Edit: now I can, but I have tried everything last night and was unable to connect to any peer. Restarted everything I could.

Have you port forwarded the ports that are needed if the machine is behind a router or firewall?
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May 04, 2013, 12:06:34 PM
 #5225

If I specify an address to mine to instead of a local bitcoin server, can I run p2pool on a machine without having bitcoin installed at all?
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May 04, 2013, 12:21:51 PM
 #5226

no

If I specify an address to mine to instead of a local bitcoin server, can I run p2pool on a machine without having bitcoin installed at all?

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May 04, 2013, 01:59:22 PM
 #5227

If I specify an address to mine to instead of a local bitcoin server, can I run p2pool on a machine without having bitcoin installed at all?

P2Pool must have a bitcoin instance it can talk to in order to do the actual work of creating blocks / mining.  It doesn't have to be local on the machine, but it needs to be "close" (not over the Internet) in order to get good efficiency.

That said, that bitcoin instance doesn't have to be the one that has your wallet in it.  You can use a bitcoin instance with an empty wallet just fine and specify your payment address (which can live in any bitcoin wallet you want) on the command line.

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centove
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May 04, 2013, 03:02:13 PM
 #5228

If I specify an address to mine to instead of a local bitcoin server, can I run p2pool on a machine without having bitcoin installed at all?

If you want to run a p2pool node, then you will need p2pool and bitcoin installed on that machine. If you just want to mine in the p2pool pool, pick a public node, using the address you want to be paid at as the username, and whatever you want for a password  in your mining software and you will be mining away...


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May 04, 2013, 05:19:38 PM
 #5229

Upgraded to p2pool 11.4 and my latency trebled! Also, memory usage graph still does not work on windoze.

Downgraded back to 11.3 and all is good again. Suggest everyone running 11.4 check their latency values......

Sooooo, anyone fancy re-writing p2pool in C yet? Please??

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May 04, 2013, 05:32:16 PM
 #5230

Also, memory usage graph still does not work on windoze.
Memory graph only works if there is the WMI thing installed:
http://timgolden.me.uk/python/wmi/index.html
Then it looks like this:
https://dl.dropboxusercontent.com/u/34410241/p2pool-leak.jpg

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May 04, 2013, 05:38:57 PM
 #5231

Also, memory usage graph still does not work on windoze.
Memory graph only works if there is the WMI thing installed:
http://timgolden.me.uk/python/wmi/index.html
Then it looks like this:
https://dl.dropboxusercontent.com/u/34410241/p2pool-leak.jpg

Yeah, saw that.

I prefer having normal latency times than being able to see how much memory I'm wasting....... Cheesy Cheesy

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May 04, 2013, 06:17:30 PM
 #5232

Sooooo, anyone fancy re-writing p2pool in C yet? Please??

I'm contemplating trying it.

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furball
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May 04, 2013, 06:35:43 PM
 #5233

Upgraded to p2pool 11.4 and my latency trebled! Also, memory usage graph still does not work on windoze.

Downgraded back to 11.3 and all is good again. Suggest everyone running 11.4 check their latency values......

Sooooo, anyone fancy re-writing p2pool in C yet? Please??

Thanks for the heads up! Note to self...stay on 11.3!
PatMan
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May 04, 2013, 07:03:50 PM
 #5234

Sooooo, anyone fancy re-writing p2pool in C yet? Please??

I'm contemplating trying it.

M

Do it my man. It looks like it's the only way anything will be fixed - I'd do it myself if I had any notion how to...... Wink

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wtogami
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May 04, 2013, 09:07:20 PM
 #5235

Also, memory usage graph still does not work on windoze.
Memory graph only works if there is the WMI thing installed:
http://timgolden.me.uk/python/wmi/index.html
Then it looks like this:
https://dl.dropboxusercontent.com/u/34410241/p2pool-leak.jpg

Yeah, saw that.

I prefer having normal latency times than being able to see how much memory I'm wasting....... Cheesy Cheesy

What measure of latency do you claim becomes worse in 11.4?  It seems fine here.

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PatMan
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May 04, 2013, 10:36:27 PM
 #5236

A mean average of 0.1 went up to a mean average of over 0.3.....

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May 05, 2013, 02:52:26 AM
 #5237

I'm not sure there'd be much benefit to C compared to some other languages which are more easily cross-platform such as Perl or Java. More power to the elbow of anyone who wants to though.

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May 05, 2013, 05:22:02 AM
 #5238

I'm not sure there'd be much benefit to C compared to some other languages which are more easily cross-platform such as Perl or Java. More power to the elbow of anyone who wants to though.
There is a benefit in using a compiled language that does not have garbage collection and gives you access to low-level OS primitives - you can write really tight high performance code. I think that C++ would be a better choice over C, though.
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May 05, 2013, 06:06:53 AM
 #5239

I'm not sure there'd be much benefit to C compared to some other languages which are more easily cross-platform such as Perl or Java. More power to the elbow of anyone who wants to though.
There is a benefit in using a compiled language that does not have garbage collection and gives you access to low-level OS primitives - you can write really tight high performance code. I think that C++ would be a better choice over C, though.

Don't get me wrong, I'm a long time C/C++ advocate and user. But is something like this really in that much need of that level tight, high-performance code? (Maybe it is, I just don't know that much about it).


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davidkassa
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May 05, 2013, 07:16:32 AM
 #5240

A mean average of 0.1 went up to a mean average of over 0.3.....

My 11.3 was at ~0.2-0.3 and my 11.4 seems to be at ~0.5-0.6.

I'm out of town this week, but will downgrade to see if it helps when I get back.
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