jallspaw

1. Monolithic applications and architectures  can vary in their monolithness. This is an under-specified description.
2. Microservice applications and architectures can vary in their microness. This is an under-specified description.
3. Microservices and monolithic architectures have both benefits and disadvantages.
4. Organizations will exploit those benefits while working around any weaknesses.
5. Success of the business is a large influence on the exploitation of benefits and implementation and costs of workarounds.
6. All benefits and work arounds are context-sensitive. Meaning that they are both technically and socially constructed by the organization that navigates them. 
7. Path dependency is a thing. History matters and manifests in these architectural decisions and evolution in an organization. 
8. Patterns exist to inform practice, not dictate it. Zealous adherence to an architectural pattern brings peril when it is to the exclusion of cultural context in actual practice.
9. Architectural patterns w

jboner

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD