Hey guys, thought I’d give my thoughts.
Ever since updating to Geth 1.18.14/15 on all of my nodes, the E3 miners on my pool dropped as much as 15% in hashrate. This seems to be associated with the miner update interval, which is now set at 3s by default, and does not respond well to update interval variables above 10s.

This means block templates are sent to the miner at an alarmingly fast rate.
Symptoms include high load averages (2+), and hashrate variation between 18-22MH.
More than a few miners have lost chains.
Pretty shitty.