I ran simulations of multiple reward systems against real-world data (Eligius shares database/blocks) prior to implementing CPPSRB.  (I've rerun this a few times since then, but not recently.)

While I admittedly do not know how to boil it down to a single equation, I'm pretty good at simulation

I took short and long term averages and % deviations from maximum/expected PPS for various time frames accounting for individuals as well as pool-wide earnings with multiple reward systems.  While PPLNS (with various different N's) ended up pretty close to CPPSRB's % deviation quickly, CPPSRB always tended to win by at least a few %.

Over the longer term and taking into account the real world data (where some miners were not consistent for example) PPLNS left some miners with substantially higher variance than others, while CPPSRB managed to iron this out quite well in most cases.

In my simulations CPPSRB kept more miners closer to 100% PPS than PPLNS did over almost all time frames, short and long.

-wk

Thanks for putting in the work, wk. I reckon you should put your data on Eligius' website, maybe publish it as an experiment to make it more replicable? Or maybe you have a pool to run

Let us know how it turns out.

My math-fu isn't at organofcorti's level. I wouldn't even begin to try.

Maybe one day Meni will add CPPSRB to his analysis paper.

Exactly. The algorithm is not hop proof. Given multiple CPPSRB pools you should hop to the one with the largest buffer, failing that the smallest share log.

Man, that was a really interesting read!


I didn't know that attack until 10 minutes ago. Seriously I've learned things today.


I believe it is briefly described on page 22; under the name "pay-once-PPLNS". He does not do a thorough analysis of it like the other methods though.

Yes its great pool, but despite we putting some donations its shame the greatest pool can't keep the stats working a week without a problem ...

Noted, but the coin flows even when the stats page is playing with itself. And it improves a bit every time, it seems. It does get annoying, but I keep coming back. Can't be that bad, apparently.

It's down for me too...  hopefully my shares ares still being accepted.  I'm not home now so I can't check.