Performance

Introduction Memory-mapped files (mmap) let you treat file contents (or anonymous memory) as a region of your process’s virtual memory. Instead of calling read/write in loops, you map a file, then access it as if it were an in-memory buffer. The kernel transparently brings pages into RAM on demand and writes them back when needed. This can reduce system calls, enable zero-copy I/O, and open up powerful patterns like inter-process shared memory. ...

Batching API requests is a proven technique to improve throughput, reduce overhead, and tame the N+1 request problem across web and mobile apps. But batching is more than “combine a few calls into one.” To do it well you need to consider protocol details, error semantics, idempotency, observability, rate limiting, and more. This article explains how batching works, when to use it, and how to design and implement robust batch endpoints with real code examples. ...

Introduction WebAssembly (Wasm) is a portable binary instruction format designed to run high-performance code on the web and beyond. It lets you compile code from languages like C/C++, Rust, Go, and others into a compact, fast, and secure module that executes at near-native speed in browsers, servers, edge environments, and embedded systems. In this in-depth guide, you’ll learn: What WebAssembly is and how it works How to write and run your first Wasm module (step-by-step) Toolchains for C/C++, Rust, Go, and AssemblyScript How to integrate Wasm with JavaScript in the browser and with WASI on servers Performance strategies, memory and interop, threads and SIMD Debugging, testing, packaging, and deployment Advanced topics: Component Model, WASI, reference types, GC, and more Common pitfalls and best practices A curated list of resources to go further Whether you’re a web developer, systems programmer, or platform engineer, this guide will take you from zero to hero with Wasm. ...

Table of Contents Introduction to Redis Getting Started with Redis Redis Data Structures Deep Dive Advanced Redis Features Persistence and High Availability Performance Optimization Redis in System Design Resources Conclusion Introduction to Redis Redis (Remote Dictionary Server) is an open-source, in-memory data structure store that has revolutionized how we think about data caching and real-time applications. Originally created by Salvatore Sanfilippo in 2009, Redis has evolved from a simple key-value store to a comprehensive data platform supporting multiple data structures, pub/sub messaging, streaming, and more. ...