Mark and Sweep Garbage Collection Algorithm

System Design for SDE-2 and above: https://arpitbhayani.me/masterclass System Design for Beginners: https://arpitbhayani.me/sys-design Redis Internals: https://arpitbhayani.me/redis Build Your Own Redis / DNS / BitTorrent / SQLite - with CodeCrafters. Sign up and get 40% off - https://app.codecrafters.io/join?via=arpitbbhayani In the previous video, we discussed the need for automatic garbage collection in programming languages and the key metrics for selecting one. This video delves into the popular garbage collection algorithm, mark and sweep, exploring its nuances and optimizations for improved performance. The algorithm operates in two phases: marking reachable objects as live and sweeping to deallocate unreferenced objects. Through a detailed explanation, we understand the indirect nature of mark and sweep compared to direct collection algorithms. The video also touches on the roles of mutator and collector threads in the garbage collection process. # Recommended videos and playlists If you liked this video, you will find the following videos and playlists helpful System Design: https://www.youtube.com/watch?v=o7qLKfILuD8&list=PLsdq-3Z1EPT27BuTnJ_trF7BsaTpYLqst Designing Microservices: https://www.youtube.com/watch?v=JPj6mhVLQN0&list=PLsdq-3Z1EPT0ug8eizS71G6LZb6-4FAFt Database Engineering: https://www.youtube.com/watch?v=-htbah3eCYg&list=PLsdq-3Z1EPT2C-Da7Jscr7NptGcIZgQ2l&pp=gAQBiAQB Concurrency In-depth: https://www.youtube.com/watch?v=2PjlaUnrAMQ&list=PLsdq-3Z1EPT3VjDhjMb5yBsgn0wn2-fjp Research paper dissections: https://www.youtube.com/watch?v=LXhgFAZroG8&list=PLsdq-3Z1EPT2XEJ0AmF02LBK1RFNd-jK8 Outage Dissections: https://www.youtube.com/watch?v=LeT_s-UFw-U&list=PLsdq-3Z1EPT3_Z97svMs6S2y7tv1PcUmc Hash Table Internals: https://www.youtube.com/watch?v=jjW8w8ED3Ns&list=PLsdq-3Z1EPT2UnueESBLReaVSLIo_BuAc Bittorrent Internals: https://www.youtube.com/watch?v=v7cR0ZolaUA&list=PLsdq-3Z1EPT1rNeq2GXpnivaWINnOaCd0 # Things you will find amusing Knowledge Base: https://arpitbhayani.me/knowledge-base Bookshelf: https://arpitbhayani.me/bookshelf Papershelf: https://arpitbhayani.me/papershelf # Other socials I keep writing and sharing my practical experience and learnings every day, so if you resonate then follow along. I keep it no fluff. LinkedIn: https://linkedin.com/in/arpitbhayani Twitter: https://twitter.com/arpit_bhayani Weekly Newsletter: https://arpit.substack.com Thank you for watching and supporting! it means a ton. I am on a mission to bring out the best engineering stories from around the world and make you all fall in love with engineering. If you resonate with this then follow along, I always keep it no-fluff.