Over ten years of BAT architecture experience, shared generously!
The article compares four major high‑concurrency testing tools—JMeter, LoadRunner, wrk, and Apache Bench—detailing their features, strengths, limitations, and ideal scenarios, helping engineers choose the right tool for performance validation.
The article explains that large language models are massive probability engines built on the Transformer architecture with self‑attention, trained through costly pre‑training on trillions of tokens, then refined by instruction fine‑tuning and RLHF, ultimately predicting the next token to generate text.
This article explains how to unleash Nginx's full potential for high‑concurrency workloads by adjusting worker processes, raising file‑descriptor limits, enlarging TCP connection queues, and persisting sysctl settings, enabling up to ten‑fold throughput improvements in production environments.
The article explains how financial systems define high concurrency by the TPS they can sustain, detailing the strict consistency, millisecond‑level response, and architectural patterns required for banking, securities, payment, and internet‑finance workloads.
This article provides a detailed technical comparison of LVS, Nginx, and HAProxy, explaining their layer operation, performance characteristics, configuration complexity, and ideal use‑cases to help architects select the most suitable load‑balancing solution for high‑traffic environments.
This article explains the core concepts of Single Sign‑On (SSO), detailing the roles of the CAS Server, CAS Client, and browser, and walks through the complete authentication flow with diagrams, illustrating how a single login grants access to multiple systems.
Domain-Driven Design (DDD) centers software architecture on business domains, breaking complex problems into clear subdomains, defining bounded contexts, ubiquitous language, and key building blocks such as entities, value objects, and aggregates, while guiding layered architecture and microservice decomposition for maintainable, collaborative systems.
This article provides a comprehensive technical guide to Nginx reverse proxy, explaining forward vs reverse proxy concepts, architecture layers, event‑driven model, detailed configuration examples, and a step‑by‑step request flow that illustrates how Nginx hides backend servers while enabling load balancing and high availability.
This article explains Alibaba's multi‑site high‑availability architecture, covering its origins after Double 11 bottlenecks, core principles like decentralization and consistency‑availability trade‑offs, layered design from traffic routing to data storage, and a real‑world deployment example.
This article outlines a multi‑level cache system for handling over a million QPS, detailing the architecture from client to database, key components like Caffeine and Redis Cluster, and providing concrete code examples for read‑through and write‑through flows.
