When I hear that all IaaS clouds were created equal I feel like a decade or so ago arguing that Solaris 10 was actually bring lots of innovation to the operating system market (Dtrace, ZFS, Zones). Google’s Compute Engine is adding unique features one at a time to the point where flexibility is really the real reason to move to the cloud.
I don’t think everyone can (or should) jump on the microservices bandwagon just yet. If you can’t build a monolithic app, chances are you’ll face technical and organizational challenges trying to go full on with microservices.
Docker seems to strike a great middle-ground between complete-but-full-blown VM’s (a la VirtualBox or VMWare) and error-prone-but-super-lightweight setup/production scripts. Its architecture built on layers offers an interesting amount of granularity and I felt like I needed to build my own little Hello World.
Tuning concurrent processing largely depends on customers' specific business needs. While Support is unable to provide specific recommendations that address all circumstances, we can certainly provide the guidance which helps you make decisions.
Be sure to check out the following documents to understand the considerations for healthy Concurrent Processing: