I have been a screen user since forever thanks to the .screenrc I got from a senior colleague back in 2009. Runkit finally made me switch to tmux without any intricacies or know how of the same!!
/me aerospike employee here - we did a live demo of running aerospike server on AWS EC2 during the fifth elephant last weekend at bangalore. The demo had 1M TPS and latency for 80/20 load (80% read, 20% write) was <1ms for >99.8% of queries.
This demo was done on 4 r3.4xlarge nodes - We did earlier runs on r3.2xl as well with similar results.