« Sponsored Post: Zohocorp, Exoscale, Host Color, Cassandra Summit, Scalyr, Gusto, LaunchDarkly, Aerospike, VividCortex, MemSQL, AiScaler, InMemory.Net | Main | Stuff The Internet Says On Scalability For August 12th, 2016 » How did Paypal take a billion hits a day system that might traditionally run on a 100s of VMs and shrink it down to run on 8 VMs, stay responsive even at 90% CPU, at transactio