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Showing posts from May, 2020

Behind the "Multiplexing of user threads over kernel threads" | Goroutines & Green Threads

Introduction I have been working on Golang for quite a time now. I explored a lot of features. The few that caught up my eye was 'Scalability' & 'Concurrency'. Scalability & Concurrency have been some of the major objectives behind the design of Golang. Let's dive in a bit. Threads  A thread is the unit of execution within a process. A process can have anywhere from just one thread to many threads. On a machine, we have multiple processes running and in these processes, we have independent or dependent threads aggregating computations.  Contextually, these threads are further broken down into two types, namely  User-Level Threads and Kernel Level Threads . The basic difference between these threads is that the kernel-level threads are managed, operated, and scheduled by the operating system(kernel), and user-level threads are managed, operated, and scheduled by the application layer.  Just to have more understanding about them, let's list dow