Garbage collection theory – Mark&compact
Reading Time: 10 minutesUp until know, in the previous posts, we’ve taken a look at how memory is retrieved by different GC methods. However, we did not look at the state, in which the memory is left after such process. Obviously this is a big deal – no matter how fast GC algorithm is, when it leaves memory
Garbage collection theory – Mark&sweep
Reading Time: 10 minutesMark&sweep was already mentioned in the previous posts. It is a cornerstone of all the marking algorithms, and is used as a backup for cyclic data structures in the ref counting. The time has come then to take a deeper look at it. Basics of mark&sweep To remind us what we’re discussing here – mark&sweep
Garbage collection theory – Reference counting
Reading Time: 9 minutesReference counting is one of its kind GC algorithm. I’ve covered it briefly in the introductory post about GC theory. In this article, we’ll dive into it deeper. Let’s go! How to deal with ref-counting deficiencies? There are two main problems with ref-counting algorithms. First, it has problems with cyclic objects, resulting in possible memory
Garbage collection theory – Basic Algorithms
Reading Time: 5 minutesIn the world of garbage collection, there are three algorithms, that are the founding stone for all the other. In this article I will try to briefly introduce all of them – reference counting algorithm, mark-sweep and copying algorithm. More detailed articles about them will follow in the weeks to come. The reference counting algorithm