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Other => CPU/GPU Bitcoin mining hardware => Topic started by: MatthewDietrichRSA on May 13, 2013, 06:19:47 PM



Title: What is Hash rate and how is it measured?
Post by: MatthewDietrichRSA on May 13, 2013, 06:19:47 PM
i have no clue ???


Title: Re: What is Hash rate and how is it measured?
Post by: ISAWHIM on May 13, 2013, 06:37:46 PM
The "hash" is actually a "double-hash"... They do it twice, per problem.
SHA256(SHA256(x)) = (This hash)

The RATE = The number of those... per (second/minute/hour/day)...

EG, 600,000,000 hashes/s = ~0.00055THs, ~0.559GHs, ~572MHs, ~585,937KHs

http://egret.net/kb__mb.htm

Hashes / time = hash-rate

600,000,000 hashes done... took 3 seconds = 200,000,000Hs = ~191MHs

It is a rough estimation of the "ability" to process "hashes", which are the majority of the workload of the processing of blocks. Other things happen too, but that is the most dramatic, for processing.

It shows two things... The speed of the code used to process, and the speed of the cards ability to use that code to process. (Faster code processes faster, as does a faster card. "Diablo" is slightly faster code, in some instances, over "poclbm".)


Title: Re: What is Hash rate and how is it measured?
Post by: MatthewDietrichRSA on May 13, 2013, 06:49:13 PM
thank u i understand now,not even wikipedia gave that info :o