This article explains how the HTML5 Performance Timing API records timestamps for each stage of page navigation, shows how to compute metrics such as DNS lookup, TCP connection, request, DOM parsing, and total load time, and provides sample JavaScript code from a GitHub repository.
FusionStorage is a distributed block storage solution for x86 servers that separates compute and storage, uses DHT‑based key‑value architecture, provides strong consistency and read‑repair mechanisms, and supports various cache media and advanced storage functions such as thin provisioning and synchronous replication.
This article compares three popular Android hot‑patch mechanisms—Dexposed, AndFix, and the ClassLoader‑based approach—detailing their underlying principles, implementation details, code examples, and evaluating their compatibility, performance, and ease of use to help developers choose the most suitable solution.
This article explains the steps from a client’s HTTP request to server response, analyzes performance bottlenecks such as TCP connection overhead, and presents practical browser‑side caching techniques—including Keep‑Alive, Last‑Modified/If‑Modified‑Since, ETag/If‑None‑Match, Expires, and Cache‑Control—to improve web site speed.
This article introduces Kubernetes, explains why it is used, outlines its core goals, describes the main components and their functions, discusses the architectural improvements it enables, and shares practical deployment experiences and common issues encountered during real‑world usage.
The article presents a detailed case study of an Android WebView memory leak that causes progressively slower page loads, explains how DDMS and MAT were used to pinpoint the leak in DynamicBgDrawable via a WeakHashMap reference cycle, and proposes converting the view reference to a weak reference to resolve the issue.
The Oracle‑Google Java copyright battle, spanning over five years, hinges on a disputed nine‑line rangeCheck method written by Joshua Bloch, with recent court moves, expert testimony, and billion‑dollar claim figures highlighting the case’s technical and legal significance.
Meizu moved from a single‑datacenter to a multi‑datacenter architecture to improve reliability, reduce latency, and meet user proximity demands, detailing technical challenges, traffic scheduling, read‑heavy and read‑write balanced services, and GSLB‑based routing solutions.
This article explains Node.js memory architecture, how the V8 engine allocates and frees memory across code, stack, and heap, demonstrates using process.memoryUsage() to monitor RSS, heapTotal and heapUsed, describes V8’s Scavenge and Mark‑Sweep garbage collectors, and provides practical techniques for detecting and debugging memory leaks with heap snapshots and profiling tools.
This tutorial walks through installing Docker on RedHat/CentOS (both 6.6 and 7) and Ubuntu 14.04, configuring it to start automatically, and then demonstrates running a simple hello‑world container, an interactive bash session, and a long‑running daemon container with detailed command explanations.
In this interview, Xiaomi R&D architect Ouyang Chen shares the design philosophy, evolution stages, core modules, pitfalls, and future challenges of the Xiaomi advertising platform, offering practical insights for building scalable backend systems.
Metamorphosis (MetaQ), Alipay’s open‑source Java‑based distributed messaging middleware, offers high throughput, ordered storage, transaction support, and HA replication, positioning itself as a Kafka‑like solution tailored for massive log, broadcast, and sequential data flows, now powering billions of daily messages for Alipay and Taobao.
This article examines Uber's rapid 38‑fold growth and the engineering choices behind its real‑time market platform, detailing the scheduling system, geographic indexing, microservices, Ringpop, TChannel, and strategies for scalability, availability, and fault tolerance.
This article walks through implementing web high availability and static‑dynamic content separation using HAProxy combined with Keepalived, covering load‑balancing concepts, VRRP basics, step‑by‑step configuration of time sync, hostnames, SSH trust, installing required packages, and testing failover scenarios.
This guide explains how to use the browser's Performance.now() API to precisely measure the time between two markers, compare it with Date timestamps, and demonstrates a practical example of timing an image's load event with JavaScript code.
This article examines the rise of cloud‑native architectures, explains core concepts of Message Oriented Middleware, compares JMS and AMQP protocols, evaluates major commercial and open‑source queue products across functionality, operations management, clustering, high‑availability, stability and extensions, and presents detailed performance test results for point‑to‑point and publish/subscribe modes.
Microservices enable faster, automated DevOps cycles and greater visibility, but they also introduce complexity, maintenance overhead, and potential fragility; this article explains their advantages, common pitfalls, and practical strategies—such as hybrid approaches, outsourcing, and appropriate language choices—to help teams decide when and how to adopt them effectively.
The article explains how modern web and cloud‑based applications are increasingly exposed to a range of application‑layer attacks—including injection, XSS, broken authentication, and insecure redirects—while highlighting OWASP’s Top 10 list, the importance of secure development practices, and IBM’s educational webinar series.
This article compares PHP and Node.js server‑side architectures, explaining CGI, FastCGI, Node.js child_process and cluster modules, PHP‑FPM limitations, and how ReactPHP brings event‑driven, asynchronous, non‑blocking I/O to PHP for higher web performance.
This article introduces Docker fundamentals, explaining what Docker is, why it outperforms traditional virtual machines, and clarifying core concepts such as images, containers, and registries for efficient, portable, and fast application deployment.
