Are Kotlin coroutines concurrency or parallelism?
On Kotlin Coroutines and how concurrency is different from parallelism. The official docs describe Kotlin Coroutines as a tool "for asynchronous programming and more", especially are coroutines supposed to support us with "asynchronous or non-blocking programming".
What is a Kotlin coroutine?
Kotlin solves this problem in a flexible way by providing coroutine support at the language level and delegating most of the functionality to libraries. In addition to opening the doors to asynchronous programming, coroutines also provide a wealth of other possibilities, such as concurrency and actors.
How long does it take to execute a Kotlin coroutine?
A simple example illustrating this is part of the Kotlin coroutines documentation: The example terminates in roughly 1000 milliseconds since both "somethingUseful" tasks take about 1 second each and we execute them asynchronously with the help of the async coroutine builder.
What happens when a coroutine is suspended in Kotlin?
When a coroutine reaches a suspension point, the thread is returned back to its pool, so it can be used by another coroutine or by another process. When the suspension is over, the coroutine resumes on a free thread in the pool. Kotlin coroutines are not managed by the operating system; they are a language feature.