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Author Topic: Missing MH/s? Pool not showing full amount. [SOLVED]  (Read 809 times)
Shrouded
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January 12, 2012, 11:25:45 AM
 #1

Hi,

New to bitcoin. Installed poclbm on Ubuntu 11.10 today. Reports me getting around 70MH/s when run with:

./poclbm.py -d0 -r2 -f30 -v http://XXXX.GPU:ZZZZ@api.bitcoin.cz:8332

Which seems in line with my lackluster 560Ti. However according to bitcoin.cz I am averaging 4MH/s
I haven't tried it elsewhere yet.

Any Ideas???


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Come-from-Beyond
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January 12, 2012, 11:44:08 AM
 #2

Pools show ur hashrate based on sent shares qty. Usualy it takes 10 mins to get correct value.
Shrouded
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January 12, 2012, 11:50:46 AM
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Have waited 4-5 hours. But the average is of 10 pools so I suppose it still could be be a matter of time.
DeathAndTaxes
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January 12, 2012, 03:05:21 PM
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Have waited 4-5 hours. But the average is of 10 pools so I suppose it still could be be a matter of time.

Some pools update their averages more often.  Also some pools show the # of shares submitted (which is really all that matters) which allows near real time verification.
deepceleron
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January 12, 2012, 03:53:00 PM
 #5

Your miner doesn't send any information about it's actual hashrate to the pool. It only sends shares that it found. A share is the term for a proof-of-work unit your miner creates with difficulty of 1 instead of the full difficulty.

On average, a "share" is found by a miner and sent to a pool every 4,294,967,296 hashes. At your hashrate, you only send a share every 61 seconds on average, but this is variable - it could take 15 seconds for one, and four minutes for the next. Pools can only guess what your actual hashrate is, and their estimations start working better if you have about 10x that hash power.

dropt
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January 12, 2012, 07:09:53 PM
 #6

It took about a day for Slush's pool to start showing it's 10 round average for me.  FWIW, what bitcoin.cz shows vs with my rig shows is ~1.2% difference.  Do you have a stable connection?  Unstable (dropped) connections seem to have destroyed my displayed average on bitcoin.cz on a couple of occasions.
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January 12, 2012, 08:43:14 PM
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Thank you for the responses. After about a day it rose to where it should be.
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