Bitcoin Forum
December 07, 2024, 10:45:46 AM *
News: Latest Bitcoin Core release: 28.0 [Torrent]
 
   Home   Help Search Login Register More  
Pages: « 1 ... 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 [365] 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 ... 1154 »
  Print  
Author Topic: [4+ EH] Slush Pool (slushpool.com); Overt AsicBoost; World First Mining Pool  (Read 4382705 times)
PuertoLibre
Legendary
*
Offline Offline

Activity: 1890
Merit: 1003


View Profile
April 30, 2013, 11:57:15 PM
 #7281

OK - I'm really not getting how these blocks are being scored.

For two similar blocks - on this block, I got in 115 shares in 2:18 and got .00032359 for it.

17770   2013-04-30 17:34:10   2:18:03   15697265   115   0.00032359

But on this block, I got in more shares (132) in less time (2:03) and there were fewer total shares, but I got 0.000 ??

17774   2013-04-30 20:25:35   2:03:23   14233698   132   0.00000000

17770   2013-04-30 17:34:10   2:18:03   15697265   137406   0.21643078   233933   25.58070000

17774   2013-04-30 20:25:35   2:03:23   14233698   123224   0.21076722   233955   25.34648117
rsbriggs
Full Member
***
Offline Offline

Activity: 427
Merit: 100


View Profile
May 01, 2013, 12:05:39 AM
 #7282

Yes, how nice for you - you get 20 days of what I mine in each and every single block you mine.

But that doesn't answer my question.  Why, when I'm mining consistently (albeit slowly), did I get zero on block 17774 where I did better than on block 17770, which I did get paid something for?  If this is "variance" then why have I never seen this magnitude of variability when mining in other pools?
PuertoLibre
Legendary
*
Offline Offline

Activity: 1890
Merit: 1003


View Profile
May 01, 2013, 12:11:05 AM
 #7283

Yes, how nice for you - you get 20 days of what I mine in each and every single block you mine.

But that doesn't answer my question.  Why, when I'm mining consistently (albeit slowly), did I get zero on block 17774 where I did better than on block 17770, which I did get paid something for?  If this is "variance" then why have I never seen this magnitude of variability when mining in other pools?
I don't know if your miner produces logs, but it seems the scoring system will eliminate your shares worth if you get disconnected or take too long to send the next share. (I think) (I am still reading up on the scoring system.)

This may have happened to you.

Another possibility is that your calculated rewards may not have finished processing yet, hence it is all zeros.
Lucko
Hero Member
*****
Offline Offline

Activity: 826
Merit: 1000



View Profile
May 01, 2013, 12:21:09 AM
 #7284

Yes, how nice for you - you get 20 days of what I mine in each and every single block you mine.

But that doesn't answer my question.  Why, when I'm mining consistently (albeit slowly), did I get zero on block 17774 where I did better than on block 17770, which I did get paid something for?  If this is "variance" then why have I never seen this magnitude of variability when mining in other pools?

I got this for the last block:

17775   2013-04-30 23:59:52   3:34:17   24772020   3376   0.00000052   none   233974   25.23872222    98 confirmations left

But I know why. Internet went out at the end... About 10 seconds into the new run I got it back... So you might have something like that at the start of one and end of one...

About the "variance"... Depends on a pool payout system...
Lucko
Hero Member
*****
Offline Offline

Activity: 826
Merit: 1000



View Profile
May 01, 2013, 12:27:00 AM
 #7285

Another possibility is that your calculated rewards may not have finished processing yet, hence it is all zeros.

In that case he wouldn't see shares jet...
Entropy-uc
Hero Member
*****
Offline Offline

Activity: 756
Merit: 501


View Profile
May 01, 2013, 01:08:57 AM
 #7286

Yes, how nice for you - you get 20 days of what I mine in each and every single block you mine.

But that doesn't answer my question.  Why, when I'm mining consistently (albeit slowly), did I get zero on block 17774 where I did better than on block 17770, which I did get paid something for?  If this is "variance" then why have I never seen this magnitude of variability when mining in other pools?
I don't know if your miner produces logs, but it seems the scoring system will eliminate your shares worth if you get disconnected or take too long to send the next share. (I think) (I am still reading up on the scoring system.)

This may have happened to you.

Another possibility is that your calculated rewards may not have finished processing yet, hence it is all zeros.

I have definitely seen cases where I was doing hardware maintenance and 15s of downtime has resulted in huge penalties from slush.

If you have to restart something, it's probably better to solo mine until the next block starts given the way he penalizes you right now.
nybbler905
Full Member
***
Offline Offline

Activity: 213
Merit: 100



View Profile
May 01, 2013, 01:22:14 AM
 #7287

OK - I'm really not getting how these blocks are being scored.

For two similar blocks - on this block, I got in 115 shares in 2:18 and got .00032359 for it.

17770   2013-04-30 17:34:10   2:18:03   15697265   115   0.00032359

But on this block, I got in more shares (132) in less time (2:03) and there were fewer total shares, but I got 0.000 ??

17774   2013-04-30 20:25:35   2:03:23   14233698   132   0.00000000
it's all timing. here is from a CPU miner and 1 share on 2 different blocks ( mine )

#      Block found at           Duration     Total shares    Your shares  Your BTC reward   Block #   Block value
17775  2013-04-30 23:59:52      3:34:17      24772020       1           0.00000369        233974    25.23872222
17774  2013-04-30 20:25:35      2:03:23      14233698       1           0.00000000        233955    25.34648117

I happened to be home to watch as the 2nd share was Near The End of the round ( 80+ in Current shares CDF: )
so, i'll take it and as far as the getting 0E-8 goes, I'm waiting on some 86ooGT cards to hopefully get out of CPU mining and get a higher hash rate.
this is a ' typical ' block for me when sooo many are connected and getting shares.....

17759    2013-04-30 01:20:57     5:01:48         34198356       3           0.00000000       233836    25.46175733

Not detered, more resolved and liking it  Cool

Always looking for donations even as low as 1uBTC
14XfpYPdtYiGoEiDcKrSzuvBM3ukhwANUh - BTC
LS7FEfu9ajp3NQcDjui9TSKscwQesj9i8k - LTC
LHe9g5ixMyfdtqAEHU5vErG1eQrDshBFRW -Luckycoin
rsbriggs
Full Member
***
Offline Offline

Activity: 427
Merit: 100


View Profile
May 01, 2013, 03:09:13 AM
 #7288

No - there is definitely something wrong here.  I'm not being paid for any blocks anymore

17774   2013-04-30 20:25:35   2:03:23   14233698   132   0.00000000
17775   2013-04-30 23:59:52   3:34:17   24772020   145   0.00000000
17776   2013-05-01 02:25:35   2:25:43   16453036    13   0.00000000

I have moved over to another pool, and I'm not having problems there with zero returns per block, even if my share counts are low.

41  DGM  0 PPS   0.00108057
136 DGM 0 PPS   0.00110942
464 DGM 0 PPS   0.00132832
6    DGM 0 PPS   0.00068256


killingtime
Newbie
*
Offline Offline

Activity: 25
Merit: 0


View Profile
May 01, 2013, 03:36:50 AM
 #7289

No - there is definitely something wrong here.  I'm not being paid for any blocks anymore

17774   2013-04-30 20:25:35   2:03:23   14233698   132   0.00000000
17775   2013-04-30 23:59:52   3:34:17   24772020   145   0.00000000
17776   2013-05-01 02:25:35   2:25:43   16453036    13   0.00000000

I have moved over to another pool, and I'm not having problems there with zero returns per block, even if my share counts are low.

The problem here is that these are fairly long blocks, and the scoring system works in such a way that shares done towards the end count more than at the beginning, but the flip to this is that with slow share submission at the end it could look like you were not sending anything and your score would be decaying faster than you were adding shares.  Even if this was done with the simple calc of (your shares / total shares) * 25 * 0.98, you only be looking at 0.0002.  And and average submission rate of a bit more than 1 share per minute.  While slush's pool is pretty nice for most people, I don't think it is a great solution for such a low hash rate.  You're just getting unlucky with score decay and too steep of a curve at the end.
Lanidarc
Newbie
*
Offline Offline

Activity: 48
Merit: 0



View Profile
May 01, 2013, 03:56:07 AM
 #7290

No - there is definitely something wrong here.  I'm not being paid for any blocks anymore

17774   2013-04-30 20:25:35   2:03:23   14233698   132   0.00000000
17775   2013-04-30 23:59:52   3:34:17   24772020   145   0.00000000
17776   2013-05-01 02:25:35   2:25:43   16453036    13   0.00000000

I have moved over to another pool, and I'm not having problems there with zero returns per block, even if my share counts are low.

The problem here is that these are fairly long blocks, and the scoring system works in such a way that shares done towards the end count more than at the beginning, but the flip to this is that with slow share submission at the end it could look like you were not sending anything and your score would be decaying faster than you were adding shares.  Even if this was done with the simple calc of (your shares / total shares) * 25 * 0.98, you only be looking at 0.0002.  And and average submission rate of a bit more than 1 share per minute.  While slush's pool is pretty nice for most people, I don't think it is a great solution for such a low hash rate.  You're just getting unlucky with score decay and too steep of a curve at the end.

Hmmm, if this is indeed the case, I would expect it to be fairly straightforward to have the decay rate depend on the average hash rate...? Actually expected this would be the case.

If this isn't easy to do though, I don't think Slush would put a huge effort in for tiny miners.
rsbriggs
Full Member
***
Offline Offline

Activity: 427
Merit: 100


View Profile
May 01, 2013, 04:13:43 AM
 #7291

Well, OK.  

Regrettably, it seems that I need to move over to another pool.
  
I can't see much point in cranking away here with my current tiny 184 Mh/s for hours and hours without reward.  From the looks of things after mining on EclipseMC for a few hours, I can still pull down about .016 BTC per day there.

I do have a box coming with a pair of HD7990's which should be here early next week.  That ought to fix up my hash rate at least a little - maybe I'll try back here after I get it going...
rsbriggs
Full Member
***
Offline Offline

Activity: 427
Merit: 100


View Profile
May 01, 2013, 04:18:59 AM
 #7292

No - there is definitely something wrong here.  I'm not being paid for any blocks anymore

17774   2013-04-30 20:25:35   2:03:23   14233698   132   0.00000000
17775   2013-04-30 23:59:52   3:34:17   24772020   145   0.00000000
17776   2013-05-01 02:25:35   2:25:43   16453036    13   0.00000000

I have moved over to another pool, and I'm not having problems there with zero returns per block, even if my share counts are low.

The problem here is that these are fairly long blocks, and the scoring system works in such a way that shares done towards the end count more than at the beginning, but the flip to this is that with slow share submission at the end it could look like you were not sending anything and your score would be decaying faster than you were adding shares.  Even if this was done with the simple calc of (your shares / total shares) * 25 * 0.98, you only be looking at 0.0002.  And and average submission rate of a bit more than 1 share per minute.  While slush's pool is pretty nice for most people, I don't think it is a great solution for such a low hash rate.  You're just getting unlucky with score decay and too steep of a curve at the end.

But this didn't start happening until the change in difficulty.  I haven't encountered this problem here before now, even if I just got a few dozen shares in on a two hour block I'd end up with at least something around 1/2 the PPS rate for that number of shares.  Then today, 4 blocks in a row, no payout...
johnyj
Legendary
*
Offline Offline

Activity: 1988
Merit: 1012


Beyond Imagination


View Profile
May 01, 2013, 06:15:02 AM
 #7293

No - there is definitely something wrong here.  I'm not being paid for any blocks anymore

17774   2013-04-30 20:25:35   2:03:23   14233698   132   0.00000000
17775   2013-04-30 23:59:52   3:34:17   24772020   145   0.00000000
17776   2013-05-01 02:25:35   2:25:43   16453036    13   0.00000000

I have moved over to another pool, and I'm not having problems there with zero returns per block, even if my share counts are low.

41  DGM  0 PPS   0.00108057
136 DGM 0 PPS   0.00110942
464 DGM 0 PPS   0.00132832
6    DGM 0 PPS   0.00068256


I also discovered some very low payout on long blocks, and I moved over to other pool


Lucko
Hero Member
*****
Offline Offline

Activity: 826
Merit: 1000



View Profile
May 01, 2013, 06:26:10 AM
Last edit: May 01, 2013, 06:42:57 AM by Lucko
 #7294

I can't see much point in cranking away here with my current tiny 184 Mh/s for hours and hours without reward.  From the looks of things after mining on EclipseMC for a few hours, I can still pull down about .016 BTC per day there.

184 is fast enough for luck not to be such big factor... But then again if you are saying you have 184 there should be much more shares in in this time. There must be something wrong. But there are more possibility.

1. You stop mining
2. Internet went out for you
3. Counting shares on Slush side fail

EDIT: but there agen I also noticed that I'm getting paid less for long blocks. It was usuly other way around since pool hoppers take part of the earnings... So Slush might take a look at the system....
organofcorti
Donator
Legendary
*
Offline Offline

Activity: 2058
Merit: 1007


Poor impulse control.


View Profile WWW
May 01, 2013, 06:32:13 AM
 #7295

There's no point guessing how the score method works. You'll just get confused - the score method seems simple enough, but it really isn't.

I posted this a few pages back and not.you did a great job summarising, but I guess you missed it:


Probably shouldn't comment since I haven't had a chance to read those yet, but I did mention above about how I thought the system was outdated.
Judging by the hash rates in the top of those they aren't very recent.
If im wrong, please dont hang me! I'll apologise for my ignorance once I have had time to look at things properly.

4.2 and 4.3 are the important ones - 4.1 is just background. They are from last year, but the score method is the same now as it was then.

Very good read indeed. I wonder how many of the forum members will take the time to read & understand (!) it. I see a rather wide spectrum of skills and attitude and many reoccurring questions that makes me assume the majority will just skip anything longer than a few paragraphs. Anyway, congratulations, I really recognize the full worth of these quality articles.

Cheers,
   T


Yes I found those the other day and thought they were excellent as well.  (When is the next one coming out?)

I kept seeing blocks that had under-calculated (by a lot) and it was bugging me until I found those.

The TL;DR version is that in order to prevent pool hopping Slush's scoring mechanism rewards shares found later in the round more than shares found earlier in the round.  This mechanism as implemented also introduces variance in the pay out.  Sometimes you get more than expected for a block and sometimes you get less as compared to a purely proportional payout system.  To check, look at your highest and lowest rewards over time and you should find some lower and some higher than the value calculated by this formula: (Block Value * 0.98 * your shares) / total shares

If you are a full-time miner however, the long term effect of the variance will disappear and your long term reward will look almost identical to what it would if that formula above were actually being used.  The end result is that pool hopping from Slush's pool is only profitable to a very, very tiny degree and full time miners are not losing much reward to pool hoppers. 

Slush could lower that pool hopping profitability even more but it would raise the payout variance even more which would make some blocks look even worse.


Bitcoin network and pool analysis 12QxPHEuxDrs7mCyGSx1iVSozTwtquDB3r
follow @oocBlog for new post notifications
vs3
Hero Member
*****
Offline Offline

Activity: 622
Merit: 500


View Profile WWW
May 01, 2013, 07:21:28 AM
 #7296

OVH CEO confirms the security flaw by which slush's pool was compromised:
https://news.ycombinator.com/item?id=5632479

they even say it in plain text:
Quote
We have found 3 active ids which had a password reset done by brute-force. These three occurences were targeted attacks against a part of the "bitcoin" community that uses ovh

Really? Just 3 clients? And ALL of them bitcoin-related? Wow, what a coincidence!
And I'm pretty sure the hacker randomly guessed the emails and usernames of those very specific 3 users. Yup, no inside info necessary. At all.

klotzenhotz
Sr. Member
****
Offline Offline

Activity: 252
Merit: 250


View Profile
May 01, 2013, 07:31:16 AM
 #7297

Hi,

just filled in a NMC wallet address yesterday, but so far nothing happened there in my slush account. Are NMC still mined? Or did I do something wrong? Just typed a walled address from my coin exchange - or do I really need the NMC server tool running?
KNK
Hero Member
*****
Offline Offline

Activity: 692
Merit: 502


View Profile
May 01, 2013, 07:31:58 AM
 #7298

I can't see much point in cranking away here with my current tiny 184 Mh/s for hours and hours without reward.  From the looks of things after mining on EclipseMC for a few hours, I can still pull down about .016 BTC per day there.

184 is fast enough for luck not to be such big factor... But then again if you are saying you have 184 there should be much more shares in in this time. There must be something wrong. But there are more possibility.

1. You stop mining
2. Internet went out for you
3. Counting shares on Slush side fail

EDIT: but there agen I also noticed that I'm getting paid less for long blocks. It was usuly other way around since pool hoppers take part of the earnings... So Slush might take a look at the system....

Yes, it seems to be some problem at your side, because for the same blocks i have ~300 shares and 0.00032 reward on average with just 150MH/s

Mega Crypto Polis - www.MegaCryptoPolis.com
BTC tips: 1KNK1akhpethhtcyhKTF2d3PWTQDUWUzHE
KNK
Hero Member
*****
Offline Offline

Activity: 692
Merit: 502


View Profile
May 01, 2013, 07:34:05 AM
 #7299

Hi,

just filled in a NMC wallet address yesterday, but so far nothing happened there in my slush account. Are NMC still mined? Or did I do something wrong? Just typed a walled address from my coin exchange - or do I really need the NMC server tool running?

You'll find the answer by reading the last few pages

Mega Crypto Polis - www.MegaCryptoPolis.com
BTC tips: 1KNK1akhpethhtcyhKTF2d3PWTQDUWUzHE
klotzenhotz
Sr. Member
****
Offline Offline

Activity: 252
Merit: 250


View Profile
May 01, 2013, 07:38:52 AM
 #7300

Oh, thanks.
Pages: « 1 ... 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 [365] 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 ... 1154 »
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!