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Author Topic: Mining Speed Difference  (Read 662 times)
Axez D. Nyde
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August 11, 2011, 02:23:12 PM
 #1

Hey there, I am using guiminer to run phoenix miner. My displayed hashrate in guiminer is somewhere around 385 MHash/s. But the homepage of the pool I'm in is displaying something around 450 MHash/s. Does anyone know where this discrepancy comes from and whom I can trust (more)?
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madsokrates
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August 11, 2011, 02:40:05 PM
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Can't answer this question for you but i thought i'd chime in to say i'm having the same issue only my hashrate according to the pool is about 4x what it is on my guiminer. The hasrate displayed on my gui seems more trustworthy to me as it varies depending on what else i'm doing on my computer and is more in line with what is expected performance-wise from my hardware.

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Zncon
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August 11, 2011, 02:41:52 PM
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The pool site doesn't know your actual hash rate, it just guesses based on how many shares you submit.

Axez D. Nyde
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August 11, 2011, 02:44:42 PM
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Well it can't 'know' my actual hashrate because I could cheat. But the site know how many works I requested and if it assumes I hashed them all (Gotta Hash'em' all! Cheesy ) then it can 'know' my hashrate.
Zncon
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August 11, 2011, 02:47:04 PM
 #5

It's based on an average, so the longer you mine with them the more accurate it will be. The fact that it's currently higher then your actual hash rate just means you got a little lucky and solved more shares then average.

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August 11, 2011, 02:50:44 PM
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So they just assume at (share-)difficulty X it takes let's say 1000 MHashes to generate a valid share and then they count my submitted shares and multiply by that Hash/share rate to get my speed?
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August 11, 2011, 02:54:03 PM
 #7

For every pool I've mined in, yes, that's exactly how they do it. It's not really a critical figure anyway, so it's not a huge deal if they just guess. That's also the method used to calculate the total hash rate for the pool.

Axez D. Nyde
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August 11, 2011, 02:56:03 PM
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Well then that also explains the large variance in pool speed, I was wondering if people really are jumping on and off that much.
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