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Beijing SF i-TECH City Technology Team

Official tech channel of Beijing SF i-TECH City. A publishing platform for technology innovation, practical implementation, and frontier tech exploration.

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Latest from Beijing SF i-TECH City Technology Team

26 recent articles

Beijing SF i-TECH City Technology Team

Oct 31, 2023 · Mobile Development

Performance Metrics and Optimization Strategies for WeChat Mini Programs

This article explains the startup process and lifecycle of WeChat mini programs, defines key performance measurement indicators such as launch time, first render time, and first screen load time, and provides detailed optimization techniques to address long startup, page load, and UI lag issues.

Mobile DevelopmentWeChat Mini Programoptimization

0 likes · 13 min read

Performance Metrics and Optimization Strategies for WeChat Mini Programs

Beijing SF i-TECH City Technology Team

Sep 27, 2023 · Backend Development

Performance Analysis and Optimization Report for a Logistics Platform

This report analyzes performance issues in a logistics platform, identifying backend IC card interface timeouts causing database connection pool exhaustion and frontend problems from excessive DOM elements and network loading, then proposes optimizations including interface migration, CDN, compression, preloading, domain sharding, and virtual scrolling.

Frontend OptimizationIC card interfacebackend optimization

0 likes · 9 min read

Performance Analysis and Optimization Report for a Logistics Platform

Beijing SF i-TECH City Technology Team

Aug 17, 2023 · Backend Development

Understanding and Troubleshooting PIE Service Interface Timeout in PHP/FPM

This article explains the three main configuration parameters—fastcgi_read_timeout, max_execution_time, and request_terminate_timeout—that affect PIE service interface timeout, demonstrates how each influences HTTP response codes and PHP execution, and provides step‑by‑step debugging and fixes for Nginx, PHP, and PHP‑FPM settings.

BackendTimeoutphp-fpm

0 likes · 9 min read

Understanding and Troubleshooting PIE Service Interface Timeout in PHP/FPM

Beijing SF i-TECH City Technology Team

Jul 10, 2023 · Mobile Development

Mobile Application Quality System – Standard Operating Procedure (SOP)

This document outlines a comprehensive Standard Operating Procedure for building and maintaining a mobile application quality system, covering background, pre‑emptive planning, coding standards, branch management, code review, AI‑assisted tools, monitoring, issue handling, and continuous improvement to ensure stable, high‑quality mobile products.

AI toolsMobileSOP

0 likes · 27 min read

Mobile Application Quality System – Standard Operating Procedure (SOP)

Beijing SF i-TECH City Technology Team

May 30, 2023 · Backend Development

Using Bytecode Enhancement in Full-Chain Load Testing Scenarios

This article explains the challenges of full‑chain load testing in microservice environments, compares component modification versus bytecode enhancement, selects ByteBuddy as the preferred bytecode library, describes the design and execution of a Java Agent (Sftc‑Agent), and discusses module architecture, class‑loader isolation, and future improvements.

ByteBuddyInstrumentationJava

0 likes · 9 min read

Using Bytecode Enhancement in Full-Chain Load Testing Scenarios

Beijing SF i-TECH City Technology Team

May 17, 2021 · Artificial Intelligence

AIOps Overview: Concepts, Applications, and Case Studies

This article provides a comprehensive overview of AIOps, covering its definition, evolution from manual to AI-driven operations, core capabilities, and real-world applications in capacity prediction, anomaly detection, and alarm merging, illustrated with case studies from a food‑retail giant and internal logistics.

Big DataCapacity PredictionIT Operations

0 likes · 13 min read

AIOps Overview: Concepts, Applications, and Case Studies