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baloo_kiev
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June 28, 2013, 05:03:58 PM |
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Why does this happen?  After two days I have 10 shares and 1 orphan and 2.4% DOA? Am I doing something wrong? I think it's just variance. If you don't find shares for a long time, your current payout starts decreasing (as your older shares become outdated). |
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Boing7898
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June 28, 2013, 06:47:15 PM |
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When was the last time that P2Pool found a block?  |
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chanson
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Activity: 84
Merit: 10
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June 28, 2013, 07:48:59 PM |
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Why does this happen? After two days I have 10 shares and 1 orphan and 2.4% DOA? Am I doing something wrong? I think it's just variance. If you don't find shares for a long time, your current payout starts decreasing (as your older shares become outdated). I can understand that shares decrease in value as the total number of shares in the block increases (hence the overall downward sloping of the flat regions). But what explains the jumps up and down? I only have one orphan, and 9 valid shares in this block... (two found during the time plotted there). The jumps up only correspond with one found share... (the orphan was before the start of the plot). Or are the big jumps down because someone found a very high value share? |
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Carlton Banks
Legendary
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Activity: 3430
Merit: 3071
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June 28, 2013, 08:00:32 PM |
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the shares are only valid in the sharechain for 24 hours, the p2pool share count doesn't deduct those ones. The graph shown does. If it's any consolation, 2 days is a very short sample period. p2pool exposes you to more of the statistical variation than any other pool, but that works out in the long term, and most people are mining long term now.
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Vires in numeris
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baloo_kiev
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June 28, 2013, 08:27:13 PM |
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Could someone who has AM blades grab one and mine on 78.27.191.182, ports 8353 and 8354, for about 5 minutes on each please.
First one is p2pool node worker port, second is getwork port of stratum mining proxy, which itself is directed to the same node.
I am trying to debug with some tweaks.
Thanks!
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baloo_kiev
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June 28, 2013, 08:42:37 PM |
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I can understand that shares decrease in value as the total number of shares in the block increases (hence the overall downward sloping of the flat regions). But what explains the jumps up and down? I only have one orphan, and 9 valid shares in this block... (two found during the time plotted there).
Payout system in the pool is PPLNS, which stands for pay per last N shares. Jumps down occur when one of your shares becomes so old that it is excluded from those "last N shares". Thus, not every share is actually paid. However, this works both ways! When a block is found, your payout will not drop to zero but remain the same, so you may eventually get paid several times (from several blocks) for the same share! |
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Boing7898
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June 28, 2013, 08:43:20 PM |
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 Is it normal for a node with 2GH/s? |
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rav3n_pl
Legendary
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Activity: 1361
Merit: 1003
Don`t panic! Organize!
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June 28, 2013, 08:48:13 PM |
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Is it normal for a node with 2GH/s?
No. You just step on memory leak. Git pull and restart node. |
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Boing7898
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June 28, 2013, 08:55:44 PM |
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Is it normal for a node with 2GH/s?
No. You just step on memory leak. Git pull and restart node. Updated and restarted, looks better now: 300 MB of memory used. Does it increases with the hashrate or not? |
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yxxyun
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Activity: 99
Merit: 10
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June 30, 2013, 08:10:25 AM |
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wow, the hashrate now is over 900Gh/s!
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Subo1977
Sr. Member
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Activity: 344
Merit: 250
Flixxo - Watch, Share, Earn!
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June 30, 2013, 08:31:15 AM |
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wow, the hashrate now is over 900Gh/s!
witout increase of DOA.... Whre comes it from |
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centove
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June 30, 2013, 11:55:38 AM |
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wow, the hashrate now is over 900Gh/s!
witout increase of DOA.... Whre comes it from Probably some more ASIC's coming on line.. Difficulty is up though.. Though it looks like that may be slowing down as well. Luck on BTCGuild - Average luck this difficulty is 75.73%. So block generation has slowed. |
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bitpop
Legendary
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Activity: 2912
Merit: 1060
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June 30, 2013, 12:38:16 PM |
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Can't wait for update to rejoin with baj
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maqifrnswa
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June 30, 2013, 01:31:14 PM |
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wow, the hashrate now is over 900Gh/s!
witout increase of DOA.... Whre comes it from BFL SCs? @Kano: Did you ever retry p2pool after flashing your jally to firmware 1.2.5? There may be something in there that is enabling the reports that recently shipped BFL devices work on p2pool. Mine shipped, so next week I can try to do some real tests - play with different firmware revisions to try to confirm the problem and fix. |
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yxxyun
Member
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Activity: 99
Merit: 10
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June 30, 2013, 02:15:04 PM |
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1NastyFRkeUTmMdbMmzggDVTQA6r3ibUoX this guy has over 200Gh/s on p2pool  |
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xgtele
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June 30, 2013, 03:24:17 PM |
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1NastyFRkeUTmMdbMmzggDVTQA6r3ibUoX this guy has over 200Gh/s on p2pool Yeah, nasty things are coming  |
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baloo_kiev
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June 30, 2013, 08:37:28 PM
Last edit: June 30, 2013, 09:25:13 PM by baloo_kiev |
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Brief report of p2pool + AM block eruptor blade investigation
1) Blade always works on difficulty 1, regardless of what server tells, so p2pool must always provide diff 1 pseudoshares to account solved work properly. This does not affect real shares difficulty, which can be tuned as usually.
2) Blade does not use long polling. Instead, it makes about 4 getwork requests per second. Looks like it makes as much requests as it can, each providing work to one chip. With 32 chips, it means about 8 seconds per full round. Maybe it doesn't send solutions before doing this full round; this must rersult in about 50% DOA. Or maybe results are put into queue and wait while software is busy requesting new work. In both cases, running it locally may help. Also, I'm not sure that real share DOA will be as high as pseudoshare DOA.
3) "p2pool + stratum proxy + AM blade" setup has some authorization-related issue. This is all I can tell by now, will try to get more details.
P.S. With the difficulty tweak, it works giving about 50% pseudoshare DOA. Real share efficiency is unknown because of little statistics. Those who have AM blades may give it a try at 78.27.191.182:8353 (with your payout address as username).
P.P.S. A question to any developers here. May I officially state that AM blade software is a piece of crap? No stratum, no long polling and constant difficulty in the year 2013. It might be OK for their internal mining but not for a sold product!
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lenny_
Legendary
Offline
Activity: 1036
Merit: 1000
DARKNETMARKETS.COM
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June 30, 2013, 10:32:13 PM |
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Thank you very much forrestv and baloo_kiev for your efforts and development. I hope that these Blades will be finally working fine with p2pool soon.  |
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