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By the way... just for fun I figured I'd see what kind of ping I'd get for this server from my location (Near Philadelphia in the US):
--- pool.centralcavern.uk ping statistics ---
80 packets transmitted, 79 packets received, 1.2% packet loss
round-trip min/avg/max/stddev = 96.268/114.866/289.298/42.460 ms
Not terrible, but with an average of nearly 115ms, I'd see too many rejects.
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Hi, Thanks for the quick response. I've only been messing with bitcoin mining for a few weeks now; so please excuse my ignorance. I had thought that it is the "difficulty" setting from the pool that is regulating how hard my miners are working. There have been some very brief peaks in the 1TH/s range for each miner, but they keep throttling down to the 800+ to 900+ GH/s range, underperforming by about 300 GH/s combined. This underperformance could impact my potential payout by about 10%, right? I have to admit that it's nice that they are running quite a bit cooler when I use your pool.  However, I would like to get them back up to 1TH/s each. Any ideas? Because p2pool is a large network of individual nodes, it is the responsibility of each node to provide difficulty values. For example, if I look at my own node right now, I see the following: 2014-06-19 14:10:17.971807 New work for worker! Difficulty: 468.830432 Share difficulty: 1567138.331514 Total block value: 25.064672 BTC including 325 transactions
2014-06-19 14:10:18.010919 New work for worker! Difficulty: 468.830432 Share difficulty: 1567138.331514 Total block value: 25.064672 BTC including 325 transactions
2014-06-19 14:10:18.049984 New work for worker! Difficulty: 64.000000 Share difficulty: 1567138.331514 Total block value: 25.064672 BTC including 325 transactions
2014-06-19 14:10:18.090329 New work for worker! Difficulty: 468.830432 Share difficulty: 1567138.331514 Total block value: 25.064672 BTC including 325 transactions The three miners with the difficulty of 468.830432 are ones that are using the default node's difficulty settings. The one with the 64.000000 difficulty has manually set the difficulty as I showed in my previous post. As for why you're getting ~900GH/s as opposed to the 1TH/s you should be, are you by chance using an Antminer S2? If yes, I recommend you point it to another pool. The problem is in the custom version of cgminer that the S2 uses. That version doesn't play well with p2pool and as a result you'll see that it will only average between 800 and 900 GH/s. Kano has been working on creating a better driver for the S2, and to compile a new version of cgminer; however, due to the closed-source nature of Bitmain's software, he's been having a difficult time reverse engineering it successfully. |
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Hi,
Your pool sounds like just what I've been looking for, but it seems like my miners are hitting a ceiling of a "difficulty" of 999.98. I am used to seeing that as more of a dynamic value. Is that hard-coded on your pool?
The difficulty given out by a p2pool node is based on the total hash rate of the node. It's designed that way so the node doesn't get flooded with shares that have no chance of actually being an accepted block solution. There are two difficulty settings that are taken into account: pseudo and actual. The pseudo difficulty is the difficulty of shares your miner submits. The only real purpose of this is to make your graphs look pretty. The actual difficulty determines the value of your share relative to other miners. It is there to ensure that miners with high hash rates don't completely dominate the share chain. Again, this is calculated by the node. You can set your own values if you wish when you connect to the pool: WALLETADDRESS/DIFF+PSEUDO the /DIFF is the actual difficulty the +PSEUDO is the pseudo difficulty Let's give an example... If you have a single S1 and you connect to a p2pool node that has a total hash rate of 100TH/s, you'll find that your S1 will very rarely find a share; however, when it does, that share will be worth more than "normal". Conversely, if you have that same S1 on a p2pool node where it is the only miner, you'll find that your shares are worth the "normal" value. Hope this helps. |
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I am not sure what you mean by a bitcoin generator. Since you posted in mining subforum. I assume you mean a bitcoin miner? The software you use to mine bitcoin with your CPU or GPU?
Mining software does work and there are quite a few of them, but the days when you can mine bitcoins with CPU or GPU is long gone. You can still mine altcoins such as Litecoins with GPU, but just barely. The difficulty has gone up so much that you need dedicated hardware called ASIC to make mining worthwhile.
Hey... we had the start of a nice story about magic beans and Nigerian princes. Why'd you have to go wrecking that by asking serious questions?  |
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Where a Prince will meet you and offer you a large amount of cash to help him recover his inheritance.
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Ah okay, didnīt know that.
So it basically is very luck dependant.
Another question: How much traffic are you generating on your node?
That's correct. The key here is that when you're merged-mining, you are effectively solo-mining the coins with the node's hash rate. I've been running my own p2pool node since April, and typically I'm the only one on it (mostly because I don't advertise it since I run it on my rMBP from home). Since I've been mining, I got lucky and managed to crack a BTC block (on April 26). That gave me block rewards for NMC, IXC, I0C, DVC. I've since added FSC. I'm pretty sure FSC is dead in the water since the last time I checked the website and block explorer were offline, but the last time I was able to access it, my node represented up to half of the entire hashing power of the coin (and I've only got about 1.8TH/s). At any rate, I guess what I'm stating is that if your node gets a respectable amount of hashing power, merged-mining becomes worthwhile (at least you can trade the NMC, IXC, DVC). Until then, well... As for web traffic, if you let p2pool and Bitcoin core have their way, they'll push/pull large amounts of data because peers are constantly hitting your node to download the block/share chains. You can kind of limit things by setting max connections for both, but running a wide open node will eat up your bandwidth. It can be detrimental to your node's efficiency, because if your pipe is clogged with a ton of traffic from peers downloading the chains, shares you submit might end up orphaned because they took to long to be broadcast. |
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Thanks Johnny
Can you post your actual earnings for the past 3 weeks for comparison?
Ie what you got each week vs the theoretical expected
I don't have historical difficulty to calculate expected earnings for the previous weeks. Also, my hash rate has been variant (I've had some days where I've mined on other pools - like Eligius because an SP10 firmware update killed p2pool usability), and I didn't own the SP10 before 6/1, so I only had 400GH/s from my 2 overclocked S1s  . Anyway, I guess what I'm saying is any numbers I provide just aren't going to be too accurate. Now that all the disclaimers are out of the way... and assuming my skills with Excel haven't failed me completely... I see that I've earned 0.9423 BTC from 6/1 until today from p2pool. Looking through my transaction history, I see blocks found as follows since 6/1: 6/1 - 1 6/3 - 3 6/4 - 1 6/5 - 1 6/8 - 1 6/9 - 1 6/11 - 3 6/15 - 2 6/18 - 2 15 blocks in 18 days, which seems to be pretty close to expectations... maybe a bit under (and today isn't over yet) @btcdigger, yes, I've had a bit of a lucky run the past day or so finding shares. |
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Right guys I know I know that's not about money DECENTRALISING but 69pence for 2h 22m 5TH ??
How is it that people can invest so much money and not have a clue about their investment? Seriously... go read up on how mining works, and the different payout systems. Unbelievable. |
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Hey bitmadrid, I'm a bit confused by your first post. Are you stating that you have currently locked in a price of $4400, or that you are trying to get a price lower than $4400? That price, by the way, was what was offered in RoadStress' April group buy (if you could prove you had ordered hardware from other manufacturers). Also, can anyone from Spondoolies-Tech verify this group buy? Finally, what, if any, deals are there for shipping/hosting for this (i.e. free month of hosting at Spondoolies-Tech, or free shipping)?
Thanks in advance.
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Hey murdof... just wanted to say good job on this - especially the "Lazy Man's" version. Personally, I hacked my way through setting everything up (Disclaimer: I have everything running natively on OSX Mavericks). The work you've done to compress the installation on Ubuntu 14.04LTS down to two commands is impressive. Nicely done!
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So eligius says that with my 2.8TH i should be getting about 0.10/day - so 0.70/week...
P2Pool says I should be getting 0.07/block.
If I take into account the last week - we got only 4 blocks - that is 0.21/week
If I look last week we found again 4 blocks agains.
Then 3 weeks back we found 7 blocks - which would mean i would make 0.49/week.
So luck is bad cause with those payments we should be getting 10 blocks / week.
So somebody is telling me that we expect this or next week even to hit 15 blocks?
What am I missing?
You aren't missing anything. All of the calculators use the same basic formula to calculate expected earnings. Those numbers are "ideal" values. You get closer to your ideal values on the largest pools because the variance is low. Using Eligius as an example, you mine until you hit your payout threshold, at which point you're placed into a payout queue. Depending on how many people are ahead of you in the queue, and how Eligius' luck is faring, you could sit in that queue for quite some time. Ghash, if you set your auto-payout there, will randomly at some point within 24 hours send you your balance (assuming you've got more than 0.01 coming to you). With p2pool, you see the effects of variance more readily. Firstly, there's the variance of finding shares. Also, each share is weighted, so you can't just say, "I found X shares, so that equates to Y value". Take a look at your efficiency rating to get an idea of how you're doing compared to the "ideal" values. Recently, our luck has been pretty poor with a number of 3+ day periods between found blocks. However, these are counteracted by other periods where the pool finds far more blocks in a given time period than it should. There's actually a really good comparison thread here: https://bitcointalk.org/index.php?topic=416933.0 where you can see a very good look at the payouts received from Eligius, BTCGuild and p2pool. By the way... we just found our second block today (3 hours after the last one) as I was writing this reply EDIT: Just to give credence to the argument. I have about 1.8TH/s mining on p2pool. My expected "ideal" earnings with that at current difficulty is 0.067 BTC a day. So far today I've mined 0.17 BTC. Considerably higher than expected daily earnings. |
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@ spondoolies
How about setting up a p2pool node in your hosted datacenter?
This would provide additional incentive for people to switch to p2pool, and setup of a p2pool node is really easy and fast.
The reason why i am asking is that p2pool requires low latency, with the server directly at your DC, everyone would benefit from a very low p2pool latency there.
Further, I donīt know of any p2pool node in israel.
Does p2pool nodes use stratum to connect to miners? How can one monitor his hash rate in p2pool? Where can one check the p2pool luck? Regards` It uses stratum. You can monitor the hashrate on the included web interface, like here http://pool.centralcavern.uk:9332/static/You can also install further plugins for better graphs and stuff. I donīt know where to check p2pool luck at the moment. More info: http://p2pool.in/Also there is an easy guide in the pools section. Our clients can select any Stratum pool they want. Today most our clients use Eligeus and BTCGuild. Small minority use ghash.io. Regarding setting our own node, we don't have the attention for that at the moment. What??? It's not like you're busy trying to get a new product out the door or anything... Hook me up with a decent Linux VM, and I'll take care of the rest for ya |
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Came across this site was wanting to solo mine my s1 there if I can can ever get it running(long story)they claim to give the founder of a block the full 25 minus transaction fees for pool as well they are merged mining namecoin and keeping any name coin found for keeping pool up and running
If you are talking about the solo pool set up by Ozcoin, They are legit. He's not, he's talking about this: http://bitsolo.net/Oh, i thought he meant solopool.net. This is why people need to be clear about what they are asking. We can't read minds. Solo mining is really nothing more then using your machine as a lottery ticket unless you have a significant portion of the network hashrate. what r the odds? If you have a miner that has 3.1 TH/s of capacity then it will likely generate one block every 14 days. If that miner has less then 100% luck then the difficulty would increase, and further decreasing the average time between blocks, making it take longer, on average to find a block. These are not specific odds but should show why solo mining is not advisable. I don't know where you got your numbers, but it will take you considerably longer than 14 days to solo-mine a block. Math proves this: Difficulty * 2**32 / hashrate / 86400 = number of days to find a block
11756551917 * 2**32 / 3100000000000 / 86400 = 188.52302119639003
Could you potentially find a block in 14 days? Sure... you could also find a block after 10 years. |
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After an incredible amount of interest we will be opening up green cloud decentralised p2pool hashing contracts in the future, so stay tuned
That's a cool idea... cloud hashing with a p2pool backend. |
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How many of you try to find nodes close to you and add them to your nodes when you run your node with --p2pool-node?
I've got my own nodes doing that, I have a couple nearby that I have added also. how advantageous is it exactly to do so do you think? does it make a huge difference? Hey guys... Newbie... running on windows machine, how would I run the command for the nodes?? my machine is just picking up a large group and I have no idea from where??? And help in that area would be great! Thanks.... run_p2pool.py --p2pool-node pool1:port --p2pool-node pool2:port ... OK one more thing please.... is there an advantage to running more then 1 pool at a time? in your explanation (run_p2pool.py --p2pool-node pool1:port --p2pool-node pool2:port) it looks as if you are starting up 2 or 3 nodes? or is that 2 or 3 nodes that you are adding from other people to pool together??? and if thats the case can you use any port? and where do you find nodes to work with? Thanks for clearing it up a bit.... BY THE WAY... You guys are all so helpful and I have learned so much about the shares and the blocks and payouts from all of you!!!!!! THANKS I'm only starting a single instance of p2pool (for BTC) with that command. I'm telling it to add the nodes specified by poo1:port. As windpath explained, if you wanted to connect to his node, you would specify it in the argument to --p2pool-node. Port is by default 9332, but some pool operators might choose to forward another port. If you want to run separate pools, you can do that, too. The standard code has setups for BTC and LTC. Alternatively, you can get rav3n's fork which has support for pretty much every coin in existence. This is a bit different than merge-mining - which uses your hashing not only on BTC, but also on other SHA-256 coins (NMC, DVC, IXC, I0C, FSC, HUC) as well. I'm glad we've been able to help. |
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I did just that and the results were receiving the output I described above through FireFox and chrome.
I figured you must have, but thought I'd throw out the obvious choice first . |
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LOL. Well played |
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How many of you try to find nodes close to you and add them to your nodes when you run your node with --p2pool-node?
I've got my own nodes doing that, I have a couple nearby that I have added also. how advantageous is it exactly to do so do you think? does it make a huge difference? Hey guys... Newbie... running on windows machine, how would I run the command for the nodes?? my machine is just picking up a large group and I have no idea from where??? And help in that area would be great! Thanks.... run_p2pool.py --p2pool-node pool1:port --p2pool-node pool2:port ... |
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You would need to have a relatively significant hash rate compared to the pool overall to impact the luck on the pool. Also, as you stated, it would take a while for that impact to be noticed. It just seems to me that taking such action would prove to be more detrimental to you than it would to the pool. As a mechanism to prevent a pool from gaining 51%? I absolutely cannot see adding a significant amount of hashing power to a pool that is already flirting with the 51% mark. Again, unless you have a significant portion of the hash rate of that pool, your attack would not be viable. And if you did have a significant portion of the hash rate already on that pool, you could simply move your miners somewhere else.
Assuming that the ~15% drop in recent bitcoin valuation was due to GHash exceeding 50% of the total hash rate (and who knows how much further it may have dropped if that abuse were not terminated), then you would need to lose 15% of your payouts in order for it to hurt you more than performing the attack. A drop in mining revenue well below that number would already cause a huge number of miners to switch pools, which would accomplish the objective of reducing the hash rate at the offending pool. I did not mean to suggest that the individual miner could pull of a successful attack single-handed (with a couple of notable exceptions). But rather that community action of this nature would have a large enough effect in aggregate to get the job done. If the community reaction to this abuse by GHash is anything to go by, it seems plausible that a large number of miners might participate in such an attack if it were easy to do. Well, it's speculation that GHash was the cause of the price drop in BTC, albeit a very plausible explanation. Still, why the attack? Either your miners are already on the pool in question, in which case you'd simply pull them off the pool, or you'd have to add a bunch of hashing power to the pool that is already at or above the 51% hoping that you make a significant enough impact that a large portion of the miners on the pool beyond your own see the reduction in payout and leave. |
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Wouldn't you just setup a port forwarding rule on your router to send port 80 to 192.168.1.99?
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