Kotlin Coroutines Under the Hood - Dispatchers, Thread Pools, and Work Stealing

Prerequisites and assumptions Note: This article reflects how the kotlinx.coroutines scheduler works as of February 2026. Internal implementation details can change between releases. You have written Kotlin coroutines before. You know what launch , async , withContext , and suspend do at a basic level. You&rsquo;ve used Dispatchers.Default , Dispatchers.IO , and Dispatchers.Main in at least one…