observer_cli

Observer CLI is a library to be dropped into any beam nodes, to be used to assist DevOps people to diagnose problems in production nodes. Provide a high-performance tool usable both in development and production settings. Focus on important and detailed information about real-time running systems. Keep minimal consumption. Increments are values that are mostly useful when compared to a previous one to have an idea of what they're doing because otherwise, they'd never stop increasing: bytes in and out of the node, number of garbage collector runs, words of memory that were garbage collected, and the global reductions count for the node. Total scheduler utilization will equal 1.0 when all schedulers have been active all the time between the two refresh intervals. The result being that there is a decent chunk of CPU usage that would be mostly free for scheduling actual Erlang work (assuming the schedulers are busy waiting more than trying to select tasks to run).