There are tons of resources about context switching online. Let me quickly give you a primer about context switching before we go to voluntary & involuntary context switch. We use multicore CPU machines. Each core works as an independent unit & can execute instructions sequentially. So if a machine has four cores, it should be … Read more
If you are familiar with thread dump or at least looked at it couple of times, probably you would have noticed WAITING & WAITING (parking) states. So what’s the difference? In Java, we have Object.wait() and Unsafe.park() methods. Both of them will suspend the running thread & put it in waiting state. But these two methods work on different principles. Object.wait() results in WAITING state whereas Unsafe.park() method … Read more
We know JavaScript is single threaded. And we know it uses event loop architecture. Event loop runs in a single thread & executes code. There are tons of articles out there regarding this. So without going into same thing again, I want to touch upon a follow up topic on this. If event loop runs … Read more