Hi JCE, I just started testing your miner (I opted for the a version due to noted regressions in b) and after about 15 hours of testing on my 8 x Vega 56 rig, things are looking very good. I can post more details once it has proven stable over time, but upon initial observation, I am quite pleased.

I understand that the h/s displayed in blue is the true average physical hashes per second over the past 512 hashes. In Advanced Topics, you state that the displayed number has no tweak, and includes the fees. If I understand correctly, could this be a reason why when I refresh quickly using 'h', I see values drop considerably on one thread followed by the other, followed by yet another? The only reason I ask this, is that a highly variable h/s on any given thread can sometimes be an early warning sign that the card/thread is not stable due to overly-aggressive configuration settings or clocks/voltages). Based on my observations, the numbers come right back up into a normal and stable range, so it seems that this is by design and that you are mining to your dev pool on a thread-by-thread basis, and that this is not necessarily a sign of instability. I just want to be sure before I spend more time tweaking performance.

Also, Effective Net Hashrate as calculated by total hashes / total seconds spent mining is often much higher than my average physical hashrate, even over an extended period of time. Since this number is supposed to take into account stale/invalid shares as well as fees, this is surprising. I would expect the number to be lower. Do you have any thoughts on this matter?

Keep up the good work!