Is it possible that dual SIA mining NOT change hashrate compared to ETH only?
Or there is something wrong with cards/drivers etc?
Gigabyte 380x.. about 20mhs a card with and without SIA..
Moreover, at some (not large) -dcri values in dual mode you can get a bit more ETH hashrate compared to ETH-only mode (because of shorter queue to memory access), though I see it on 390 cards only.
Increase -dcri and ETH hashrate will fall.
Interesting. I would think the opposite or assume you can use some tricks to achieve the same without the increased power draw (like explicitly flushing or deliberately "starving" that queue).
I don't currently run a secondary coin because high memory clocks with tight timings are only stable at low temperatures (which is also beneficial for power efficiency on it's own) and it's hard to keep the reference 480s cool even at ~100% fan speed if they are busy with two coins. So, single-ETH seems to be better overall (for me, for now. may be winter will change that).