Official JD Tech public account delivering best practices and technology innovation.
JoyGen introduces a two‑stage framework that combines 3D facial reconstruction with audio‑driven motion generation to produce synchronized, high‑fidelity talking‑face videos, and validates its effectiveness on both the HDTF benchmark and a newly built high‑resolution Chinese speaking‑face dataset.
This article explains the hidden performance killer of cache false sharing in multicore Java applications, demonstrates its impact with benchmark code, and shows how padding, the @Contended annotation, and Caffeine's internal structures can eliminate the issue for faster execution.
This article dissects Guava Cache's source code, explaining its segmented lock architecture, data structures, put/get implementations, cleanup and eviction mechanisms, and compares its performance and design choices with the more modern Caffeine cache library.
This article explains why newly deployed front‑end pages often still display old content due to browser, Nginx, or CDN caching, and provides a three‑step method—including proper cache‑control headers, hash‑named assets, and version‑based fallback—to ensure users always see the latest version.
This comprehensive tutorial explains the fundamentals of SNMP, its architecture, versions, message types, MIB structure, and practical usage—including command‑line tools and Java code examples—to help network administrators efficiently monitor and manage devices.
This guide walks you through installing dependencies, creating two MCP‑based SSE servers and a client in Python, explains MCP concepts and architecture, and shows how to run the demo to explore the Model Context Protocol for AI agents.
This article explores why outliers appear in large‑scale internet A/B tests, explains their impact on experiment precision, compares traditional trim and winsorize techniques, reviews a range of statistical and machine‑learning detection methods, and offers practical recommendations for handling them in product experiments.
This article explains how to use SQL coloring in MyBatis by implementing a lightweight interceptor or an AspectJ weave to annotate each SELECT statement with its mapper ID and execution stack, enabling rapid identification of performance bottlenecks during high‑traffic events.
This article outlines the motivations, challenges, and step‑by‑step solutions for migrating over 100 Java applications to JDK 21, covering dependency conflicts, module system adjustments, Maven plugin compatibility, garbage‑collector selection, and practical build and deployment practices to ensure a smooth upgrade.
The article introduces Taro's open-source C-API version for HarmonyOS, detailing its architecture, rich component and CSS support, high-performance rendering, hybrid native integration, and step‑by‑step installation guide, positioning it as a leading frontend solution for cross‑platform development.
