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Tencent Technical Engineering
Tencent Technical Engineering
Nov 17, 2025 · Backend Development

How Profile‑Guided Optimization Supercharged WeChat’s Backend Services

This article details the year‑long exploration of Profile‑Guided Optimization (PGO) for WeChat’s backend, covering its theory, compiler implementations, practical experiments with Propeller and BOLT, transparent eBPF sampling, engineering challenges, and the measurable CPU and memory savings achieved across production services.

PGObackend servicescompiler
0 likes · 48 min read
How Profile‑Guided Optimization Supercharged WeChat’s Backend Services
Xiaohongshu Tech REDtech
Xiaohongshu Tech REDtech
Jul 24, 2025 · Backend Development

How Xiaohongshu Boosted Java Performance by 10% with a RedJDK Upgrade

Xiaohongshu’s middleware team migrated thousands of Java services from JDK 8 to RedJDK 11/17, achieving over 10% performance gains, 50% GC pause reduction, and eliminating OOM crashes through systematic JDK upgrades, GC tuning, native‑memory improvements, and standardized deployment pipelines.

GC optimizationNative MemoryVirtual Threads
0 likes · 22 min read
How Xiaohongshu Boosted Java Performance by 10% with a RedJDK Upgrade
JD Retail Technology
JD Retail Technology
Aug 21, 2024 · Operations

Designing a Disaster Recovery and Data Backup System for JD 秒送 LBS C‑End SOA Services

This article explores the design of a disaster‑recovery framework for JD’s秒送 LBS C‑end SOA services, detailing data‑backup strategies, cost‑reduction techniques, grid‑based caching using H3, diff validation, client‑side caching, and deployment modules to balance reliability, performance, and expense.

Cost OptimizationLBSbackend services
0 likes · 18 min read
Designing a Disaster Recovery and Data Backup System for JD 秒送 LBS C‑End SOA Services
JD Cloud Developers
JD Cloud Developers
Jul 19, 2024 · Mobile Development

Building Scalable Mobile Apps for Supply Chain Logistics: Frameworks & Best Practices

This article examines the characteristics of mobile application development for supply‑chain logistics, covering device framework selection, backend service design, operational backend functions, and scenario‑driven user experience optimization, while highlighting differences from traditional PC web solutions.

LogisticsMobile Developmentbackend services
0 likes · 27 min read
Building Scalable Mobile Apps for Supply Chain Logistics: Frameworks & Best Practices
Huolala Tech
Huolala Tech
Dec 21, 2023 · Operations

How to Accurately Evaluate and Guarantee System Capacity for High‑Traffic Services

This article explains why capacity assessment and guarantee are essential for high‑traffic services, outlines the core factors influencing system capacity such as thread count, response time, CPU, memory and database resources, presents calculation formulas, describes load‑testing methods, shares practical benchmark results for Tomcat and Undertow, and offers actionable recommendations for improving throughput and stability.

Load TestingPerformance Optimizationbackend services
0 likes · 16 min read
How to Accurately Evaluate and Guarantee System Capacity for High‑Traffic Services
php Courses
php Courses
Apr 18, 2023 · Backend Development

Architecture Overview of the RunnerGo Testing Platform

The RunnerGo testing platform provides API debugging, automation, and performance testing through a multi‑service online architecture that includes management, engine, collector, front‑end, and various middleware components such as Redis, MySQL, MongoDB, Kafka, and Nginx, illustrated with architecture and process diagrams.

API testingPerformance Testingbackend services
0 likes · 3 min read
Architecture Overview of the RunnerGo Testing Platform
Architecture & Thinking
Architecture & Thinking
Mar 19, 2023 · Cloud Native

How Baidu Feed Achieved Serverless Scaling with Multi‑Dimensional Service Profiles

This article explains how Baidu's Feed recommendation backend adopted a serverless approach, building elastic, traffic, and capacity portraits for each micro‑service to enable predictive, load‑feedback, and timed scaling, thereby reducing resource waste and operational costs in a cloud‑native environment.

Cloud NativeServerlessService Profiling
0 likes · 17 min read
How Baidu Feed Achieved Serverless Scaling with Multi‑Dimensional Service Profiles
Shopee Tech Team
Shopee Tech Team
Aug 12, 2022 · Backend Development

Shopee Video Technology: Backend Services, High‑Definition Low‑Bitrate Optimization, and Performance Enhancements

Shopee’s video platform combines live‑stream and on‑demand transcoding, link‑mic, multi‑party mixing, and backend editing services with a proprietary high‑definition low‑bitrate pipeline that leverages GPU and CPU encoders, AI‑enhanced pre‑processing, hierarchical B‑frames, and SIMD‑optimized sharpening to deliver high‑quality video on low‑end devices while cutting compute costs, and the company is actively recruiting engineers for further development.

AI enhancementPerformance OptimizationVideo processing
0 likes · 19 min read
Shopee Video Technology: Backend Services, High‑Definition Low‑Bitrate Optimization, and Performance Enhancements
Kuaishou Large Model
Kuaishou Large Model
Apr 29, 2022 · Backend Development

How Kuaishou Automates AR Effect Quality with a Scalable Detection Service

Kuaishou's Y‑tech team built an automated detection platform that statically analyzes effect assets, dynamically renders them on a server, and runs real‑device performance tests, using a task queue, Kafka and RMQ to ensure high‑quality AR effects across multiple products.

AR effectsAutomated TestingPerformance Testing
0 likes · 7 min read
How Kuaishou Automates AR Effect Quality with a Scalable Detection Service
Programmer DD
Programmer DD
Nov 30, 2020 · Operations

Mastering High Availability: From Cold Backup to Multi‑Active Deployments

This article explains how backend services can be classified as stateless or stateful and explores a range of high‑availability strategies—from simple cold backups and active‑standby setups to same‑city, cross‑city, and multi‑active architectures—highlighting their trade‑offs and implementation considerations.

backend servicesdisaster recoveryhigh availability
0 likes · 14 min read
Mastering High Availability: From Cold Backup to Multi‑Active Deployments
Tencent Cloud Developer
Tencent Cloud Developer
Dec 26, 2018 · Backend Development

Cloud Development for Mini Programs: Simplifying Backend Services

Cloud development for mini programs streamlines backend creation by offering a document database, CDN‑linked storage, and server‑less functions, letting developers focus on business logic while eliminating server purchases, domain setup, and complex configuration, and providing unified authentication, one‑click provisioning, and future‑ready API extensions.

Authenticationapi-integrationbackend services
0 likes · 10 min read
Cloud Development for Mini Programs: Simplifying Backend Services
21CTO
21CTO
Feb 6, 2016 · Backend Development

Building a Scalable Cross‑Border E‑Commerce Platform: Architecture Lessons and Pitfalls

This article examines the technical challenges and solutions involved in designing, deploying, and evolving a cross‑border e‑commerce platform, covering system architecture, network setup, database scaling, service modularization, and real‑world pitfalls encountered during rapid growth.

Database designDeploymentScalability
0 likes · 18 min read
Building a Scalable Cross‑Border E‑Commerce Platform: Architecture Lessons and Pitfalls
21CTO
21CTO
Jan 12, 2016 · Cloud Computing

How Meizu Scales Cloud Sync: Protocols, Architecture & Data Handling

This article explains Meizu's cloud synchronization system, detailing its custom MZ‑SyncML, Semi‑Sync, File‑Sync and One‑Sync protocols, the multi‑IDC deployment, routing components, data format optimizations, and modular backend architecture that together support millions of users with high availability and efficient data transfer.

backend servicescloud syncdata optimization
0 likes · 14 min read
How Meizu Scales Cloud Sync: Protocols, Architecture & Data Handling
Architect
Architect
Dec 17, 2015 · Backend Development

Technical Architecture Evolution for Real-Time Multi-Party Audio and Video Streaming

The article details the progressive architectural decisions and technical solutions behind a real-time multi‑party audio/video streaming platform, covering format research, backend service design, protocol choices, codec selection, node topology redesign, and video integration to achieve low‑latency, cross‑platform communication.

Opus codecReal-time StreamingWebRTC
0 likes · 15 min read
Technical Architecture Evolution for Real-Time Multi-Party Audio and Video Streaming