Asynchronous Patterns for Ruby Based on Pure MRI CRuby code The goal is to use the original MRI C libs for achieve real async processing in ruby
This is good for where cpu focused for included, for example csv transformation
require 'asynchronous' thr = Asynchronous::Thread.new do "some expensive work" end thr.value #> "some expensive work"
With Syntax Sugar
require 'asynchronous/core_ext' thr = async do "some expensive work" end thr.value #> "some expensive work"
Quoting Sun's Multithreaded Programming Guide:
- A condition that arises when at least two threads are executing simultaneously.
- A condition that exists when at least two threads are making progress.
- A more generalized form of parallelism that can include time-slicing as a form of virtual parallelism
Concurrency is when two tasks can start, run, and complete in overlapping time periods. It doesn't necessarily mean they'll ever both be running at the same instant. Eg. multitasking on a single-core machine.
Parallelism is when tasks literally run at the same time. Eg. on a multicore processor.