Understanding Heap File Storage
Feb 18 · 3 min read · When you execute INSERT INTO users VALUES (1, 'Alice') in PostgreSQL, what actually happens on disk? Where does that data go? How is it organized? Why does a simple SELECTsometimes cause disk writes? These aren't just academic questions—they're the f...
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Understanding Escape Analysis in Go – Explained with Example Code
Feb 12 · 12 min read · In most languages, the stack and heap are two ways a program stores data in memory, managed by the language runtime. Each is optimized for different use cases, such as fast access or flexible lifetimes. Go follows the same model, but you usually don’...
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Why Just Increasing -Xmx Is a Recipe for Disaster (and What to Do Instead)
Jan 7 · 5 min read · Increasing -Xmx is sometimes touted as a magic bullet whenever Java problems are encountered in production. Our system has crashed? Try increasing the Java heap space. Is performance unacceptable? Just make the heap bigger and see if it solves it. Th...
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How does the heap works in microcontrollers?
Dec 23, 2025 · 3 min read · On a microcontroller, the heap is just a region of RAM used for dynamic allocation (e.g., malloc/new) at runtime. The big difference vs a PC is: RAM is tiny, there’s no OS to manage memory for you, and fragmentation can bite hard. 1) The memory map i...
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How to Build an LSM Tree Storage Engine from Scratch – Full Handbook
Dec 18, 2025 · 38 min read · Databases are one of the most important parts of a software system. They allow us to store huge amounts of data in an organized way and retrieve it efficiently when we need it. In the early days, when the volume of data was relatively small, engineer...
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Understanding and Implementing Heap Sort
Nov 30, 2025 · 7 min read · What is Heap Sort? Heap Sort is a comparison-based sorting technique that is used to sort an array. This sorting technique is based on the Heap Data Structure. Therefore, in order to study heap sort, one must have knowledge about the heap itself. Wha...
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Nov 18, 2025 · 10 min read · Imagine a hospital ER triage system where you must constantly identify the most critical patient amidst a continuous stream of new arrivals; this scenario requires a data structure that handles priority efficiently, not just arrival order. Standard a...
Join discussionJava Series #3: Arrays & Strings
Nov 8, 2025 · 4 min read · 1. Arrays in Java Arrays in Java are objects that store multiple values of the same type. They behave differently than arrays in languages like C/C++. Key Characteristics 1.1 Stored in Heap Memory Even if the array reference is declared inside a meth...
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Day 5: Memory Management in Node.js (Heap, GC, Leaks)
Sep 5, 2025 · 3 min read · Hello guys, We have already explored Cluster & Worker Threads yesterday but still how Node.js overcomes its single-threaded limitation by scaling across CPU cores and parallelizing heavy tasks. But scaling isn’t just about CPU cycles. Memory manageme...
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