The Schedulers.newThread() provides us with a scheduler that creates a new thread for each task provided. While at first glance it may seem similar to Schedulers.io(), there's actually a huge difference.
The Schedulers.io() uses a thread pool, and whenever it gets a new unit of work, it first looks into the thread pool to see if any idle thread is available to take up the task; it proceeds to create a new thread if no pre-existing thread is available to take up the work.
However, Schedulers.newThread() doesn't even use a thread pool; instead, it creates a new thread for every request and forgets them forever.
In most of the cases, when you're not using Schedulers.computation(), you should consider Schedulers.io() and ...
