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Author Topic: Sudden loss of BTC production  (Read 2044 times)
racerx
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October 31, 2010, 08:55:03 PM
 #1

Hi All,

Im thinking nothing is wrong but I seem to have an odd production rate of bitcoins. I have a number of servers producing bitcoins (50ish cores) but all of a sudden my production seems to have halted though they all are getting new blocks, are still hashing correctly. Has the difficulty just ramped up alot or something else I haven't noticed?

Code:
gonk@prod-web2.xxxxx.net:~$ bitcoind getinfo
{
    "version" : 31300,
    "balance" : 0.00000000,
    "blocks" : 88869,
    "connections" : 1,
    "proxy" : "",
    "generate" : true,
    "genproclimit" : -1,
    "difficulty" : 3091.73911604,
    "hashespersec" : 15913782,
    "errors" : ""
}

All the servers are ticking along fine, and they connect out thru a central bitcoin server, but no more BTC since the 26th Sad


Cheers
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ribuck
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October 31, 2010, 08:59:36 PM
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Well the difficulty has just ramped up to 3091.

Why don't you estimate your total khash/sec and type that into the Bitcon Generation Calculator. See if you've gone longer than the 95% expected time-to-generate at the current difficulty.
racerx
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October 31, 2010, 09:13:00 PM
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Will do,  but that probably wont take into account the previously generated coins at a lower dificulty.

Also, when did the difficulty go up?
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October 31, 2010, 09:17:53 PM
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Within the last 24 hours.
racerx
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October 31, 2010, 09:39:44 PM
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Thanks for the info,

Im generating at about 76230 khash's and with the current difficulty it estimates:

Average   2 days, 0 hours, 23 minutes
50%   1 day, 9 hours, 32 minutes
95%   6 days, 0 hours, 57 minutes

Derived from a collection of hardware Im using and the hash rates I just documented here:
http://bitcointalk.org/index.php?topic=1628.0

So I guess that means I'm still a day away from 95% with my last 50BTC coming in on the 26th.. just odd with at least 50 a day untill then.

racerx
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October 31, 2010, 10:00:29 PM
 #6

Right,

So I just discovered that my 2 6core miners (30khashes combined) have not been taking ntp updates for a while and are about 6 hours in the future. Just reading the http://bitcointalk.org/index.php?topic=960.0 clock thread and Im thinking that might not have helped my cause.
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October 31, 2010, 10:28:33 PM
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So I guess that means I'm still a day away from 95%
5% of the time you should expect to take longer than that 95% estimate.
ShadowOfHarbringer
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November 01, 2010, 12:38:09 AM
 #8

So producing new coins is becoming hardly worth the power needed to produce it...
Exactly as predicted by satoshi.

Recently I had to shut down minting on my computer completely, because my electricity bill went crazy...

racerx
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November 01, 2010, 08:28:33 AM
 #9

So producing new coins is becoming hardly worth the power needed to produce it...
Exactly as predicted by satoshi.

Recently I had to shut down minting on my computer completely, because my electricity bill went crazy...


I agree, its not cost effective if you pay the bills.
jgarzik
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November 01, 2010, 04:19:14 PM
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So producing new coins is becoming hardly worth the power needed to produce it...
Exactly as predicted by satoshi.

Recently I had to shut down minting on my computer completely, because my electricity bill went crazy...


I agree, its not cost effective if you pay the bills.

... unless you own current-generation AMD/ATI GPU, of course.

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racerx
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November 05, 2010, 08:19:41 PM
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still no coinage Sad  must be uber unlucky
ShadowOfHarbringer
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November 05, 2010, 08:34:47 PM
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still no coinage Sad  must be uber unlucky

On what hardware ?

Marko
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November 10, 2010, 03:38:56 PM
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Someone came in with a large amount of GPU power that day. I noticed the dent in my own GPU production as well.
davux
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November 10, 2010, 03:56:35 PM
 #14

So does this mean that producing coins will be impossible to do by average people? Which would mean that the number of computers able to produce coins is reducing: it's only the big ones – the average guy is out of the way. Can it happen that in the long run, a couple hundreds, then a couple computers get the monopoly on coin generation?

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nelisky
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November 10, 2010, 04:01:21 PM
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So does this mean that producing coins will be impossible to do by average people? Which would mean that the number of computers able to produce coins is reducing: it's only the big ones – the average guy is out of the way. Can it happen that in the long run, a couple hundreds, then a couple computers get the monopoly on coin generation?

I don't think so... it will get harder and more spaced, but I'm sure others have experienced the odd block found by the 2MHs machine, just like I do.
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November 10, 2010, 04:39:25 PM
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So does this mean that producing coins will be impossible to do by average people? Which would mean that the number of computers able to produce coins is reducing: it's only the big ones – the average guy is out of the way. Can it happen that in the long run, a couple hundreds, then a couple computers get the monopoly on coin generation?

It's not binary in any sense, the odds just decrease, never to zero. If it used to take a GPU farm X minutes and an old CPU Y minutes now it takes them 4500X minutes and 4500Y minutes respectively. No one picks up any advantage, it gets harder by the same fraction for every imaginable set up.

In a way you could say that the faster you were then the more you lose.

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