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481  Bitcoin / Mining support / Re: ? Formula to Calculate Share calc speed given Hash rate / diff? on: February 09, 2012, 08:59:14 PM
The average amount of time (in seconds) to find a single share is:

Code:
difficulty * 2^32 / hashrate

In that equation, difficulty is the difficulty of a share and hashrate is your hash rate in hashes per second.  A day has 86,400 seconds in it, so the number of shares you'll find in 24 hours is:

Code:
86,400 / (difficulty * 2^32 / hashrate)


482  Bitcoin / Pools / Re: Time for Prop pools to charge a fee? on: February 09, 2012, 07:34:19 PM
It's time for prop pools to go away.  Prop pool dedicated miners and pool operators have been largely choosing to ignore the unfixable flaw inherents in proportional payouts.  It's time to come to grips with reality and switch to a non-hopable payment scheme.
483  Bitcoin / Pools / Re: [200GH/s] p2pool: Decentralized, DoS-resistant, Hop-Proof pool on: February 08, 2012, 07:27:38 PM
Ok this is correct, I am in the second one ("1N9mMCgV1CzU3s8Kvf7BcQhBBXGgoo9Wx1": 4.43964579) and not the first one and I am a small miner (252 Mhash) so I could very well fall into the small miner lottery. Thank you Smiley

One last question and I'll stop bothering you Wink: What does the 4.43964579 mean? (amount of shares would seem weird due to the fractional number)

The second URL was "how would 1000 BTC be divided up between p2pool miners".  4.43964579 means that you would have received 4.43964579 BTC out of the 1000 BTC.  Of course no one would likely donate 1000 BTC Smiley  I just picked a very large number to make sure that no one would fall below the 0.01 cutoff.
484  Bitcoin / Pools / Re: [200GH/s] p2pool: Decentralized, DoS-resistant, Hop-Proof pool on: February 08, 2012, 06:59:17 PM
Okay, then how come I didn't receive any? (see previous link for the address I use to mine)

Do you see your address in the output of:  http://forre.st:9332/patron_sendmany?total=1

How about in the output of: http://forre.st:9332/patron_sendmany?total=10000

If you address is in the second one but not the first one, then I believe that is because of the small miner lottery.  

In order to prevent lots of tiny payments, the donation code takes all the people who would have received only a very small donation payment, adds up all those payments, and awards the entire amount to one of those small miners randomly.

"Small Miner" depends on the size of the donation.  If someone is donating 1 BTC at a time and the pool hashrate is 200GH/s, and the small payment cutoff is 0.01, then you have to have approx 2GH/s to not fall into the "small miner" bucket.  If someone donates 10 BTC in one fell swoop, then you only need to have 200 MH/s in order to be above the 0.01 payment cutoff.

P.S.  The default cutoff is 0.01, but people doing donation can choose a different one by adding it to the URL with a '/'.  For example, here is a 1 BTC donation with a 0.001 cutoff instead:

http://forre.st:9332/patron_sendmany?total=1/0.001
485  Bitcoin / Pools / Re: [200GH/s] p2pool: Decentralized, DoS-resistant, Hop-Proof pool on: February 08, 2012, 03:55:24 PM
Have the P2Pool donations / Promotion stopped? I haven't received any in over a week now.

No, I have gotten several in the past few days.
486  Bitcoin / Pools / Re: [175GH/s] p2pool: Decentralized, DoS-resistant, Hop-Proof pool on: February 04, 2012, 02:21:23 PM
Annnd heres my self typed p2pool report.. <---Can we fix that... like... Copy outta cmd... pwetty pwease?


You can copy out of the cmd window, but it is annoying.  Talk to Microsoft if you want it fixed (it has nothing to do with p2pool):

http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/windows_dos_copy.mspx?mfr=true



Could someonelooks at my stats and tell me if anything is 'bad'? A few things of my concern are:
P2pool says i have submitted 3 shares, Where as CG miner says i have submitted 108
I only have 10 Peers, I would expecet there to be more peers on the P2Pool network... I have my ports all setup and ready... Is this amount normalish?

As someone mentioned, p2pool sends work to cgminer at a low difficulty but only some of them count as real shares in p2pool.  That is why p2pool and cgminer disagree and it is normal.  Real p2pool shares have a high difficulty and you won't find very many of them:

gribble: The average time to generate a block at 610000 Khps, given the supplied difficulty of 375.328335592, is 44 minutes and 2 seconds

Of course that is an average and just like normal bitcoin blocks, it may sometimes take 3 hours to find a share and other times only 10 minutes.

Last, 10 peers is not abnormal, especially if you just recently restarted.  You client does not connect to all peers on the network, only a handful.  If you have any incoming (it lists them), then you know your   firewall is configured correctly.  If you have no incoming peers and have been running p2pool for more than a day or two, then probably your firewall is not configured correctly.  It doesn't really matter that much though.  
487  Bitcoin / Pools / Re: [150GH/s] p2pool: Decentralized, DoS-resistant, Hop-Proof pool on: February 01, 2012, 07:43:38 PM
Ok I'll check next time I mine. The blue part is the part that is reporting me such awful numbers (16-23 % stales). Efficiency was 87% (plus/minus a number I don't recall)

The blue and the red parts are showing the same information in different ways:

Total submitted shares: 180 valid + 8 orphan + 5 dead = 193.
Stale % = (8 orphan + 5 dead) / 193 total = 0.067 = 6.7%

But it is the red part that tells you what kind of problem you have (orphan vs dead).

Of course, these numbers are only useful after p2pool has been running for a few days.  They start out at zero everytime you restart p2pool and for the first day or two, randomness will make it hard to know what the real pattern is.
488  Bitcoin / Pools / Re: [150GH/s] p2pool: Decentralized, DoS-resistant, Hop-Proof pool on: February 01, 2012, 07:26:54 PM
I meant to type Mhash  of course as I mentioned it's a HD6850

I have no idea what kind of stales they are, the p2pool application does not report anything that seems relevant. Also the amounts of rejects is see reported by my miner are vastly lower than these very high stale percentages.

Look for these line in the p2pool output:

2012-02-01 13:25:32.973102 Pool: 147GH/s in 17310 shares (17314/17314 verified) Recent: 1.39% >2045MH/s Shares: 180 (8 orphan, 5 dead) Peers: 39 (29 incoming)
2012-02-01 13:25:32.973229 Pool stales: 8% Own: ~7% (4-12%) Own efficiency: ~101% (95-103%)

The red part tells you how many and what kind of stales you are getting.  The blue part tells you how that compares to the pool as a whole.

489  Bitcoin / Pools / Re: [150GH/s] p2pool: Decentralized, DoS-resistant, Hop-Proof pool on: February 01, 2012, 06:37:50 PM
Then rounds, they should last 10 seconds, but they're often a lot faster, see:

I see that a few months ago rounds went from 5 to 10 seconds, so I'm asking wouldn't it be better to have 1 minute long rounds?

Share difficulty is set so that they will be found every 10 seconds on average.  Just as with bitcoin blocks (which are supposed to be found every 10 minutes but are often found 2-3 minutes apart or 25 minutes apart), there will be variance in how frequently the shares are actually found.

An average of 1 share per minute would be accomplished by making share difficulty 6x higher.  That would increase variance for any given miner (which seems to be the opposite of what you are looking for).
490  Bitcoin / Pools / Re: [150GH/s] p2pool: Decentralized, DoS-resistant, Hop-Proof pool on: February 01, 2012, 06:32:38 PM
I've been mining on P2P with 760MHs for four days now, but I'm mining just one third, more or less, of what I was getting when I was on a PPS pool.

I do understand that there is variance, but now I need a day where I mine 8 times as much just to be on par with my previous PPS payout.


Given the pool's current/recent hashrate, our average time to find a block should have been about 10-11 hours.  So in the past 96 hours, we should have found 9 or 10 blocks.  In reality we have found 9 blocks in that time frame.

So, we are pretty much hitting the average.  You should have made almost exactly the same amount in the past 4 days as you would have on a PPS pool unless your share-finding-luck has been crazy bad.  If you really have seen only 1/3rd as much, something almost has to be wrong because you almost certainly haven't been that unlucky finding shares. 

Have you confirmed that your stale rate is not abnormally high relative to the pool? 

Are you getting approx the same hashrate as before as reported by p2pool?

491  Bitcoin / Pools / Re: [150GH/s] p2pool: Decentralized, DoS-resistant, Hop-Proof pool on: January 31, 2012, 05:08:20 AM
Does bitcoind have to be caught up downloading the block chain before starting P2Pool?

Yes
492  Bitcoin / Pools / Re: [150GH/s] p2pool: Decentralized, DoS-resistant, Hop-Proof pool on: January 31, 2012, 04:02:51 AM
I tried to drop my 2.5 gh/s minecart in, with the same version of phoenix but running the last release of linuxcoin.  I'm getting about 30% - 50% reject rate on all 7 gpus (3x5970s & 1x5830) Same miners pointing at Slush and I'm down at 1% reject rate. Does the P2P client have issues with nodes that have too many GPUs? Maybe I need to update the ATI drivers...

I run a single rig with 5 GPUs and phoenix and get about 5% reject.  Check your AGRESSION option.  It needs to be lower for p2pool in order to get lower stales.  I was getting 20-30% as well and dropped the AGRESSION from 9 down to 7 and reject rate dropped like a rock.  I don't know why this is necessary, but it seems to be.
493  Bitcoin / Pools / Re: [150GH/s] p2pool: Decentralized, DoS-resistant, Hop-Proof pool on: January 30, 2012, 12:23:47 PM
I'm a little confused about where the payments come from though... Does the p2pool client force multiple payments from the block solver's bitcoin client to all miners in the pool? Is another bitcoin client built into the p2pool binary?

The found-block directly includes the appropriate payments in the coinbase (the transaction that generates the 50 BTC).  Instead of the 50 BTC going to one address, it goes to all of the addresses of people that have mined shares in the last N shares (usually 8640) relative to how many shares they have mined.

See here for an example:

http://blockchain.info/block-index/856135

(see the "No Input (Newly Generated Coins)" transaction)
494  Bitcoin / Pools / Re: [110GH/s] p2pool: Decentralized, DoS-resistant, Hop-Proof pool on: January 29, 2012, 06:53:07 PM
I'm personally really happy about the new built in per-worker graphs:


Where can I find these graphs?  The ones I found (at http://mymachine:9332/graphs/) don't show individual workers.
495  Bitcoin / Pools / Re: [150GH/s] p2pool: Decentralized, DoS-resistant, Hop-Proof pool on: January 29, 2012, 06:39:06 AM
How to make this signature pic?

You can't.  I added it to btcstats.net for myself only as it gets its data on my hashrate from my personal proxy.  I suppose I could try to figure out how to find other people's hashrates from the p2pool RPC api if people wanted it, but I don't think you can put images in signatures anymore, so it would be kind of pointless except at other websites (it works for me here only because I haven't changed my sig since the new rule went into affect). 

Someone else made a nice looking avatar image (that you can put under your name in the left sidebar).  Scroll up for the details.
496  Bitcoin / Pools / Re: [150GH/s] p2pool: Decentralized, DoS-resistant, Hop-Proof pool on: January 29, 2012, 06:24:45 AM
I pointed my modest setup at p2pool.  It wasn't too painful.  We'll see how it goes.
497  Bitcoin / Pools / Re: [488 GH/s] EMC: 0 Fee/DGM/Merged Mining/PayPal Payout/SMS/Yubikey/More on: January 23, 2012, 04:59:06 AM
Looks great now (0.6%):

498  Bitcoin / Pools / Re: [488 GH/s] EMC: 0 Fee/DGM/Merged Mining/PayPal Payout/SMS/Yubikey/More on: January 21, 2012, 03:31:45 AM
FYI, my stales are back down to 2.4% (calculated locally, over the past 3 hours):



My Workers round count (over the past 4.2 hours) is showing closer to 0.3% stale:



Not sure why the discrepancy.  I'm going to try us2 overnight to see if it makes a difference.
499  Bitcoin / Pools / Re: [488 GH/s] EMC: 0 Fee/DGM/Merged Mining/PayPal Payout/SMS/Yubikey/More on: January 20, 2012, 01:57:14 PM
When was the last time you reset the reject count?  IE - what is your reject count on the current block?  

I had to futz with the servers quite a bit last night, which caused a lot of rejects and if your counts have not been reset since then, they will be way off.  In regards to that, everyone got the same number of rejects, so it won't affect your payout, as everyone will be operating under the same conditions.

I show about a 1.5 - 2% reject, though my submitted shares are a little low for accurate statistic for the current block on my miners. I can look at getting that down as my next step.

I am seeing about 4.4% rejects also.  Note, this is a moving 3 hour average (so does not include last nights futzing) and is calculated on my end (not based on the stats you are calculating on the web page).
500  Bitcoin / Pools / Re: [200 GH/s] EMC: 0 Fee/DGM/Merged Mining/PayPal Payout/SMS/US/EU/AU/More on: December 15, 2011, 09:36:05 PM
On the My Workers page, the Profitability column is cool, but I find myself constantly doing the same math exercise every time I go there to add up all the rows to get the total profitability for my account.  Any chance of just adding a subtotal to the bottom row for that column that added up the numbers above?
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