--- title: "#internals articles | Hashnode" description: "Explore 802 articles tagged #internals on Hashnode. Tutorials, guides, and how-tos from the community." url: "https://hashnode.com/tag/internals" --- Tag # #internals 802 posts · 2 followers [ZyVOP](https://hashnode.com/@zyvop) · [5h ago](https://hashnode.com/posts/how-async-await-really-works-from-syntax-sugar-to-state-machines-zclcn/6af93990dd79e5910bf7aee0) ### [How async/await Really Works: From Syntax Sugar to State Machines](https://blog.zyvop.com/how-async-await-really-works-from-syntax-sugar-to-state-machines-zclcn?utm_source=hashnode&utm_medium=feed) Explore how JavaScript transforms async/await into resumable state machines using Promises, microtasks, and the event loop. 14 min read · [blog.zyvop.com](https://blog.zyvop.com/how-async-await-really-works-from-syntax-sugar-to-state-machines-zclcn?utm_source=hashnode&utm_medium=feed) [Ashaaf Khan](https://hashnode.com/@ashaafkhan) · [Jul 1](https://hashnode.com/posts/how-chatgpt-understands-prompts-llm-internals/6a44a5bb3680c9980c31b761) ### [Demystifying the Black Box: How ChatGPT Actually Understands Your Prompts](https://ashaaf.hashnode.dev/how-chatgpt-understands-prompts-llm-internals?utm_source=hashnode&utm_medium=feed) From Raw Text to Vector Space: Tracing the Millisecond Journey of the World’s Most Powerful Predictive Engines 9 min read · [ashaaf.hashnode.dev](https://ashaaf.hashnode.dev/how-chatgpt-understands-prompts-llm-internals?utm_source=hashnode&utm_medium=feed) [Sarthak Singh](https://hashnode.com/@Sarthak-Singh) · [Jun 30](https://hashnode.com/posts/chatgpt-is-not-a-black-box-anymore-the-journey-from-input-tokens-to-output-responses/6a4376ca11c05cfbcff82520) ### [ChatGPT Is Not a Black Box Anymore: The Journey from Input Tokens to Output Responses](https://sarthak-singh.hashnode.dev/chatgpt-is-not-a-black-box-anymore-the-journey-from-input-tokens-to-output-responses?utm_source=hashnode&utm_medium=feed) Learn how ChatGPT works—from tokenization and embeddings to transformers, attention, softmax, and response generation. 5 min read · [sarthak-singh.hashnode.dev](https://sarthak-singh.hashnode.dev/chatgpt-is-not-a-black-box-anymore-the-journey-from-input-tokens-to-output-responses?utm_source=hashnode&utm_medium=feed) [1](https://hashnode.com/posts/chatgpt-is-not-a-black-box-anymore-the-journey-from-input-tokens-to-output-responses/6a4376ca11c05cfbcff82520) [Abstract Algorithms](https://hashnode.com/@abstractalgorithms) · [Jun 18](https://hashnode.com/posts/how-concurrenthashmap-internals-work/6a3435e46a4dcea053012549) ### [How It Works: Thread Safety Internals of Java's ConcurrentHashMap](https://abstractalgorithms.hashnode.dev/how-concurrenthashmap-internals-work?utm_source=hashnode&utm_medium=feed) Explore volatile reads, Compare-And-Swap (CAS) loops, bucket-head locking, and parallel resizing in Java's map. 9 min read · [abstractalgorithms.hashnode.dev](https://abstractalgorithms.hashnode.dev/how-concurrenthashmap-internals-work?utm_source=hashnode&utm_medium=feed) [Abstract Algorithms](https://hashnode.com/@abstractalgorithms) · [Jun 18](https://hashnode.com/posts/how-database-b-plus-tree-indexes-work/6a3435c0606743db34fcf068) ### [How It Works: The Internals of Database B+ Tree Indexes](https://abstractalgorithms.hashnode.dev/how-database-b-plus-tree-indexes-work?utm_source=hashnode&utm_medium=feed) Understand how B+ Trees minimize disk I/O, manage page splits, and accelerate database queries. 11 min read · [abstractalgorithms.hashnode.dev](https://abstractalgorithms.hashnode.dev/how-database-b-plus-tree-indexes-work?utm_source=hashnode&utm_medium=feed) [Abstract Algorithms](https://hashnode.com/@abstractalgorithms) · [Jun 18](https://hashnode.com/posts/how-redis-internals-work/6a3435c9abd01159b2bad2c5) ### [How It Works: Under the Hood of the Redis Single-Threaded Engine](https://abstractalgorithms.hashnode.dev/how-redis-internals-work?utm_source=hashnode&utm_medium=feed) Understand epoll multiplexing, memory layouts, ziplists, and eviction policies inside the Redis engine. 9 min read · [abstractalgorithms.hashnode.dev](https://abstractalgorithms.hashnode.dev/how-redis-internals-work?utm_source=hashnode&utm_medium=feed) [Rakesh Kishore](https://hashnode.com/@RakeshKishore) · [Jun 14](https://hashnode.com/posts/eliminating-tempdb-allocation-contention-a-deep-dive-into-gam-sgam-and-pfs-page-wars/6a2ee1be9d2e0ba360c865a1) ### [Eliminating TempDB Allocation Contention: A Deep Dive into GAM, SGAM, and PFS Page Wars](https://tunedinstance.com/eliminating-tempdb-allocation-contention-a-deep-dive-into-gam-sgam-and-pfs-page-wars?utm_source=hashnode&utm_medium=feed) Resolving concurrency bottlenecks in SQL Server's shared playground: How to isolate page latch waits, scale data files proportionally, and optimize metadata performance. 7 min read · [tunedinstance.com](https://tunedinstance.com/eliminating-tempdb-allocation-contention-a-deep-dive-into-gam-sgam-and-pfs-page-wars?utm_source=hashnode&utm_medium=feed) [Rhythm Babu Kafle](https://hashnode.com/@buddha404) · [Jun 11](https://hashnode.com/posts/pe-section-deep-dive/6a2ae0582bcd68fa4b852381) ### [PE Section: Deep Dive](https://buddha404.hashnode.dev/pe-section-deep-dive?utm_source=hashnode&utm_medium=feed) The article explains what exists inside PE Sections in brief 6 min read · [buddha404.hashnode.dev](https://buddha404.hashnode.dev/pe-section-deep-dive?utm_source=hashnode&utm_medium=feed) [Siddhesh Sawant](https://hashnode.com/@siddheshsawant) · [May 31](https://hashnode.com/posts/what-really-happens-before-your-spring-boot-application-starts-the-complete-spring-bean-lifecycle/6a1cb9338286e3686459cdaa) ### [What Really Happens Before Your Spring Boot Application Starts : The Complete Spring Bean Lifecycle](https://siddheshsawant.hashnode.dev/what-really-happens-before-your-spring-boot-application-starts-the-complete-spring-bean-lifecycle?utm_source=hashnode&utm_medium=feed) Learn Bean instantiation, dependency injection, BeanPostProcessor, @PostConstruct, initialization, destruction 9 min read · [siddheshsawant.hashnode.dev](https://siddheshsawant.hashnode.dev/what-really-happens-before-your-spring-boot-application-starts-the-complete-spring-bean-lifecycle?utm_source=hashnode&utm_medium=feed) [SriKeerthi R](https://hashnode.com/@srikeerthi) · [May 31](https://hashnode.com/posts/postgresql-synchronous-replication-internals-the-backend-wait-path/6a1c819dab609916501fd8cb) ### [🧠 PostgreSQL Synchronous Replication Internals: The Backend Wait Path](https://sri-revuru.hashnode.dev/postgresql-synchronous-replication-internals-the-backend-wait-path?utm_source=hashnode&utm_medium=feed) Part 3 of a series — \`SyncRepWaitForLSN\`, the latch loop, and exit paths 17 min read · [sri-revuru.hashnode.dev](https://sri-revuru.hashnode.dev/postgresql-synchronous-replication-internals-the-backend-wait-path?utm_source=hashnode&utm_medium=feed)