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Author Topic: [1500 TH] p2pool: Decentralized, DoS-resistant, Hop-Proof pool  (Read 2034438 times)
matthewh3
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September 19, 2013, 09:28:40 PM
 #6621

I have a day one KNC Jupiter pre-order and another one due before October 15th. Will they work on P2Pool node based pools OK.  I also have three 60(GH/s) BFL SC's I could put on a P2Pool node based pool possibly but thinking of selling them soon.

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gmaxwell
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September 19, 2013, 11:57:35 PM
 #6622

I have a day one KNC Jupiter pre-order and another one due before October 15th. Will they work on P2Pool node based pools OK.  I also have three 60(GH/s) BFL SC's I could put on a P2Pool node based pool possibly but thinking of selling them soon.
It's my understanding that the miner software authors have heard _nothing_ from KNC lately, though they were told they'd be given access for testing. So if it'll work in any particular situation is a crapshoot. Historically mining code from hardware vendors has been pretty crappy.

It takes a bit of time to install p2pool and bitcoind, so if you're planning on p2pool mining them I suggest getting it setup and running early.  You can happily look at the p2pool graphs even if you're not mining on it.  Your BFLs will run great on p2pool, or you could just use p2pool as a backup for them.

kmtan
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September 20, 2013, 12:20:13 AM
 #6623

try for the p2pool, how is the speed.

lenny_
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September 20, 2013, 04:49:01 AM
 #6624

Does anyone have a p2pool that has all the merge-mined coins?
Namecoin, Devcoin, IOcoin? (I forget the rest)


Yup, I do.....

Edit: But I took i0coin off - too memory sucking & drive bashing.....BTC, IXC, DVC, GRC & NMC only for now.
I0C has been updated and it's working fine. Give it a try Smiley
Can you tell me what is GRC? Couldn't find any links about it.
IYFTech
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WANTED: Active dev to fix & re-write p2pool in C


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September 20, 2013, 06:43:25 AM
 #6625

Does anyone have a p2pool that has all the merge-mined coins?
Namecoin, Devcoin, IOcoin? (I forget the rest)


Yup, I do.....

Edit: But I took i0coin off - too memory sucking & drive bashing.....BTC, IXC, DVC, GRC & NMC only for now.
I0C has been updated and it's working fine. Give it a try Smiley
Can you tell me what is GRC? Couldn't find any links about it.

Sorry, it's GRP not GRC - which is GRouPcoin:

https://bitcointalk.org/index.php?topic=67991.60

You'll need RAM, it's a bit of a hog like I0coin was before it was updated. Took me a while to compile it too, still needs some work & there's no windoze version yet or GUI. But, as they say, every little helps. I mean, if you're gonna mergemine you might as well mine them all right? Grin

-- Smiley  Thank you for smoking  Smiley --  If you paid VAT to dogie for items you should read this thread:  https://bitcointalk.org/index.php?topic=1018906.0
Subo1977
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September 20, 2013, 11:44:33 AM
 #6626

Join my fast HA P2Pool in germany or set it up as Backup

Cologne, Germany | http://p2pool-cologne.dyndns.org:9332 | 1.0% | BTC | P2Pool | Subo1977

have fun :-)

I provide a 1000Mbit+ Torrent-Seedbox in FR and a 500Mbit Box in NL for orginal Blockchain Bootstrap.dat download. and also for Armoryclient Torrent

Tips are welcome:  15MuGdPSXU62fEFE9XbBZN3UvJMHBDVBoy
HellDiverUK
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September 21, 2013, 03:12:11 PM
 #6627

Any idea if p2pool is going to be fixed to work with ASICMiner Blades?  I just tried my Blades on p2pool, and I get a shitload of rejects.  Between 30-50%. 
HellDiverUK
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September 21, 2013, 03:13:54 PM
 #6628

Yep, my node is down at the moment due to a popped PSU.  It'll be back up in the next few days, and I'll have a couple of Blades connecting to it - along with what I'm already running, that should be ~30GH/s coming back to p2pool.
How are you running your blades on p2pool?  I was using bfgminer as a getwork proxy and over 30% of the shares where rejected.  What share reject rates are you getting?

Eventually got round to trying the Blades on p2pool - I'm seeing the same thing.  Abandoned the idea for the meantime until something is done about it.
gmaxwell
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September 21, 2013, 04:38:14 PM
 #6629

You need to set your pesudoshare difficulty to 1 with +1 on the username. This is documented upthread.  ASICminer blades are flawed and works only on difficulty 1 work even when directed otherwise.
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September 21, 2013, 04:53:06 PM
 #6630

Just to note that I am connecting my Blades to p2pool via BFGMiner's http stratum proxy.  I don't know how I can set the diff to 1 by device - I'd have to keep it diff1 for everything that's connecting through BFG.
Krak
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September 21, 2013, 06:23:30 PM
 #6631

Just to note that I am connecting my Blades to p2pool via BFGMiner's http stratum proxy.  I don't know how I can set the diff to 1 by device - I'd have to keep it diff1 for everything that's connecting through BFG.
Why not set up a separate proxy for the Blades and put a +1 on the username?

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Nemesis
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September 23, 2013, 03:47:00 PM
 #6632

I havent kept up with P2pool for so long. Way back when i tried it with GPUs more than a year ago, its very resource hungry and variances were so high.

How is it now with all the ASICs?

What is the current status of the project? are there any forks from this project?

zvs
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September 23, 2013, 04:00:14 PM
 #6633


the ks-2g could run one adequately, but that, the ks-4g and the ks-16g are sold out


You're dreaming if you think a single core Atom will run p2pool with any efficiency.  A Celeron 847, which is WAY faster than an Atom really struggles, even running a text-only Ubuntu server install on SSD. 

The slowest machine I've had it running properly on is a Pentium G620 (dual core 2.6GHz Sandy Bridge).

Currently my p2pool node runs on my mining/workstation machine, which is an i3-3220T with 8GB RAM and SSD drive.

why wouldnt it?

it has 2GB RAM and a 500GB HDD

obviously you wouldnt want to make it public and have a ton of people connecting to it

i guess the only thing ive noticed is that with an i7-4930k you can get the getblocktemplate latency down to 0.7ms or so (though i guess this would be more reliant on having quality memory, eh).    if you chop out all transactions it'll go for 0.85 or 0.9ms on one of those old hetzner 2700k's

Dacentec, best deals for US dedicated servers. They regularly restock $20-$25 Opterons with 8-16GB RAM & 2x1-2TB HDD's (ofc, usually lots of other good stuff to choose from).  I did a Serverbear benchmark of one of my $20/mo Opteron (June last year), it's here.  Have had about a half dozen different servers with Dacentec, & none have failed to sustain at least 40MB/s (burst higher). My favorite is a 12-month rent-to-own ZT Systems 2XL5520 16GB 2x2TB SATA for $40/month (got lucky with the 'off-brand', haven't seen a RTO 2xL5520 for under $50/mo since -- at least for monthly contracts).  wholesaleinternet.com has some ancient 2-core intel CPUs @ $10/mo sometimes (I got an Intel Core 2 6300 @ 1.86GHz, with a 250GB HDD with 46000 hours on it, LOL. $20 @ Dacentec is much better, if you can grab one). joesdatacenter.com (same location as Wholesale Internet) also occasionally has specials (or if you don't want to wait, it has an AMD Opteron 170 @ $16/mo).
HellDiverUK
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September 23, 2013, 04:04:27 PM
 #6634

I havent kept up with P2pool for so long. Way back when i tried it with GPUs more than a year ago, its very resource hungry and variances were so high.

Still resource hungry, still high variance.

I was really keen to use P2Pool, and ran it for several months, but to be honest it was just too much - it needed a fast machine to run it, and payouts were pretty woeful. Half of any mining profits (if I got any at all) was wasted on power to run the i3 machine needed to make P2Pool perform anywhere near well enough.  I tried to run it on a Sempron dual core 2.5GHz CPU, and it struggled with a measly 5GH/s.  Someone said they ran P2Pool on a Celeron 847, but I think they were huffing glue.

Now I'm up to 35GH/s, I gave up on P2Pool.  I get far better returns with less bother on a 'real' pool.  
gyverlb
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September 23, 2013, 04:27:06 PM
 #6635

I havent kept up with P2pool for so long. Way back when i tried it with GPUs more than a year ago, its very resource hungry and variances were so high.

Still resource hungry, still high variance.

I was really keen to use P2Pool, and ran it for several months, but to be honest it was just too much - it needed a fast machine to run it, and payouts were pretty woeful. Half of any mining profits (if I got any at all) was wasted on power to run the i3 machine needed to make P2Pool perform anywhere near well enough.  I tried to run it on a Sempron dual core 2.5GHz CPU, and it struggled with a measly 5GH/s.  Someone said they ran P2Pool on a Celeron 847, but I think they were huffing glue.

Now I'm up to 35GH/s, I gave up on P2Pool.  I get far better returns with less bother on a 'real' pool.  

When was that? Before or after the last protocol fork (which made it efficient with most ASICs) which happened in July? If it was after the fork it's surprising as it should have solved these problems.

BTW, your hashrate shouldn't have any impact on the resources used by a P2Pool node:
  • Stratum offloads most of the work generation to the miner, leaving on average one computation to be done only when the node needs to update the coinbase (probably every 30 seconds on average unless it is aggressively pushing additional TX in the coinbase as they come, which would not be linked to the miners hashrate)
  • variable difficulty is used so that the node only receives one share per second on average to verify

I use an i5-3350P with 16GB and a 64GB SSD with ~20 altcoins nodes, 6 p2pool nodes, a PostgreSQL database for some datamining and several other daemons with an average load at ~4.
My efficiency is most of the time >102% for the Bitcoin p2pool node with an Avalon and several FPGAs mining on it.

Before that I only had an old Core2Duo at 3GHz with 6GB and the same SSD which was more than enough. I upgraded due to flaky hardware (integrated SATA controller dying) and the additional RAM allowed me to follow more altcoins.

Edit: forgot to add CPU usage stats, on average the Bitcoin p2pool node uses 5.2% of one of my CPU cores, bitcoind uses 2.2%.

P2pool tuning guide
Trade BTC for €/$ at bitcoin.de (referral), it's cheaper and faster (acts as escrow and lets the buyers do bank transfers).
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Nemesis
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September 23, 2013, 04:36:37 PM
 #6636

I havent kept up with P2pool for so long. Way back when i tried it with GPUs more than a year ago, its very resource hungry and variances were so high.

Still resource hungry, still high variance.

I was really keen to use P2Pool, and ran it for several months, but to be honest it was just too much - it needed a fast machine to run it, and payouts were pretty woeful. Half of any mining profits (if I got any at all) was wasted on power to run the i3 machine needed to make P2Pool perform anywhere near well enough.  I tried to run it on a Sempron dual core 2.5GHz CPU, and it struggled with a measly 5GH/s.  Someone said they ran P2Pool on a Celeron 847, but I think they were huffing glue.

Now I'm up to 35GH/s, I gave up on P2Pool.  I get far better returns with less bother on a 'real' pool.  

When was that? Before or after the last protocol fork (which made it efficient with most ASICs) which happened in July? If it was after the fork it's surprising as it should have solved these problems.

BTW, your hashrate shouldn't have any impact on the resources used by a P2Pool node:
  • Stratum offloads most of the work generation to the miner, leaving on average one computation to be done only when the node needs to update the coinbase (probably every 30 seconds on average unless it is aggressively pushing additional TX in the coinbase as they come, which would not be linked to the miners hashrate)
  • variable difficulty is used so that the node only receives one share per second on average to verify

I use an i5-3350P with 16GB and a 64GB SSD with ~20 altcoins nodes, 6 p2pool nodes, a PostgreSQL database for some datamining and several other daemons with an average load at ~4.
My efficiency is most of the time >102% for the Bitcoin p2pool node with an Avalon and several FPGAs mining on it.

Before that I only had an old Core2Duo at 3GHz with 6GB and the same SSD which was more than enough. I upgraded due to flaky hardware (integrated SATA controller dying) and the additional RAM allowed me to follow more altcoins.

Edit: forgot to add CPU usage stats, on average the Bitcoin p2pool node uses 5.2% of one of my CPU cores, bitcoind uses 2.2%.

I will give it a try. Is ur guide the most uptodate?
gyverlb
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September 23, 2013, 04:50:29 PM
 #6637

I will give it a try. Is ur guide the most uptodate?

For tuning probably: at least I'm not aware of any other verified information that would be relevant.
For the basic installation this thread's first post and the wiki page should have you covered (it assumes basic sysadmin skills).

P2pool tuning guide
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HellDiverUK
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September 23, 2013, 05:07:48 PM
 #6638


When was that? Before or after the last protocol fork (which made it efficient with most ASICs) which happened in July? If it was after the fork it's surprising as it should have solved these problems.


It was running 13.3.  I'll maybe have another go with it sometime, perhaps there was something strange with my install, or I missed something.  I'm pretty sure I did everything I should have, though.

I'm rejiggering my workstation in the next few days, including a fresh install, so I'll see if I can have another go.

Still, all that said, I'm still getting far better returns from a larger pool than I did on p2pool.
centove
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September 23, 2013, 05:41:13 PM
 #6639


When was that? Before or after the last protocol fork (which made it efficient with most ASICs) which happened in July? If it was after the fork it's surprising as it should have solved these problems.


It was running 13.3.  I'll maybe have another go with it sometime, perhaps there was something strange with my install, or I missed something.  I'm pretty sure I did everything I should have, though.

I'm rejiggering my workstation in the next few days, including a fresh install, so I'll see if I can have another go.

Still, all that said, I'm still getting far better returns from a larger pool than I did on p2pool.
Kinda a catch 22 there... More hash rate == Quicker Block solves == lower variance. (PPLNS payout) p2pool has less total hash rate so therefore it will have higher variance which will lead to fewer people using it which leads to lower total hash rate....

Give me Btc: 1BRkf5bwSVdGCyvu4SyYBiJjEjbNiAQoYd Mine on my node: http://ask.gxsnmp.org:9332/
gyverlb
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September 23, 2013, 05:57:55 PM
 #6640

Kinda a catch 22 there... More hash rate == Quicker Block solves == lower variance. (PPLNS payout) p2pool has less total hash rate so therefore it will have higher variance which will lead to fewer people using it which leads to lower total hash rate....

That's not so bad. People leaving are those with the worst configurations (network issues or underpowered node), who don't have the sysadmin skills to maintain a node or who can't stand the variance (due to very low hashrates or luck misunderstanding).

Regular users of p2pool are those who know how to set it up, maintain and optimize it: they build a high quality network of nodes that should outperform any centralized pool. With lots of well configured nodes broadcasting our blocks, we should have lower orphan rate. As anyone verified/quantified this by the way?

Last time I studied the orphan rate for solo miners on alt-coins, I found a block collision rate that was equivalent to a 3 to 5 seconds window where a block would be orphaned. This should amount to a ~0.5% orphan rate on the bitcoin P2P network. This is over-simplified by assuming most pools use a single bitcoind to broadcast their block (some have severals or have direct connections to other "friend" pools).

Is there some archive of P2Pool found blocks somewhere? Looking at the last thousand and comparing to the largest pools we should have an idea of our performance.

P2pool tuning guide
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