Post
Topic
Board Mining software (miners)
Re: DAcc (Difficulty Accepted) percentage calculation explanation
by
kano
on 29/11/2013, 01:40:18 UTC

https://dl.dropboxusercontent.com/u/109686709/minepeonstats.jpg

The percentage is DAcc / Diff1 as seen in the screenshot, so Diff1 are all shares counted in difficulty1.

Maybe Disc(arded) isn't displayed in difficulty1 so DAcc + DRej + (sum of Disc * difficulty) = Diff1

Am I getting this right? Which means that I had much lower stale percentage depending on the pool.
No. You've pretty much got everything wrong.

"Discarded" counts for nothing in the amount of work you are doing.
It's simply work you could have used but didn't use due to an LP.
Ignore it.

"DAcc / Diff1" is random and pretty much meaningless.

As per the FAQ:
Code:
Q: Why don't the statistics add up: Accepted, Rejected, Stale, Hardware Errors,
Diff1 Work, etc. when mining greater than 1 difficulty shares?
A: As an example, if you look at 'Difficulty Accepted' in the RPC API, the number
of difficulty shares accepted does not usually exactly equal the amount of work
done to find them. If you are mining at 8 difficulty, then you would expect on
average to find one 8 difficulty share, per 8 single difficulty shares found.
However, the number is actually random and converges over time, it is an average,
not an exact value, thus you may find more or less than the expected average.

Multiplying ANYTHING by "Difficulty" is wrong.
Work difficulty can (and usually does) change.