This article details a Java‑based log replay solution that re‑implements Goreplay functionality using Disruptor, covering design concepts, log extraction, implementation steps, performance metrics, identified risks, and provides full source code examples for a scalable load‑testing engine.
This article examines common sources of performance‑testing errors—including hidden locking‑resource issues, inadequate local machine configuration, inefficient regex‑based data extraction, costly exception handling, and unsynchronized thread termination—while offering practical Java‑centric mitigation strategies.
This article narrates a detailed, step‑by‑step debugging process for a sudden drop in data volume caused by Kafka partition bottlenecks, covering problem verification, code inspection, environment checks, logging, packet capture, load testing, and the final resolution of increasing partition size.
This article describes how a single‑machine prototype was built in Go to simulate a WeChat red‑envelope service capable of handling up to 6 × 10⁴ QPS, supporting one million concurrent connections, and processing 10 billion shake‑red‑envelope requests through careful load‑balancing, monitoring, and performance analysis.
The article explains how Alibaba introduced full‑link stress testing and a four‑step capacity‑planning process for the Double 11 shopping festival, detailing traffic‑prediction, system‑capacity evaluation, fine‑tuning via production‑environment load tests, and dynamic flow‑control mechanisms that together ensure system stability during massive traffic spikes.
This article introduces the fundamentals of performance testing, covering its definition, testing methods, timing, perspectives, test types, key metrics, and practical scripting examples to simulate high concurrency loads for reliable software evaluation.
This guide introduces four lightweight Linux web‑server benchmarking tools—http_load, webbench, Apache’s ab, and Siege—explaining their installation, command‑line options, example usage, and how to interpret key performance metrics such as fetches per second, response times, and throughput.
