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5000 articles · Page 24 of 50
DataFunTalk
DataFunTalk
Nov 20, 2023 · Big Data

Automated Data Governance and Optimization with Volcano Engine DataLeap: Challenges, Solutions, and Benefits

This article examines the challenges faced by Volcano Engine's DataLeap in computational governance, outlines automated solutions such as real‑time rule engines and monitoring, and presents concrete performance and cost benefits achieved through resource optimization across large‑scale Spark and Hadoop workloads.

Resource Optimizationautomationbig data
0 likes · 13 min read
Automated Data Governance and Optimization with Volcano Engine DataLeap: Challenges, Solutions, and Benefits
Advanced AI Application Practice
Advanced AI Application Practice
Nov 20, 2023 · Fundamentals

What Exactly Is Testability in Software Development?

The article defines testability as the precondition for conducting testing at each software lifecycle stage, explains its manifestations during requirements, design, development, and release phases, and illustrates the concept with a performance‑impact example from an e‑commerce order‑detail scenario.

Designperformancequality assurance
0 likes · 7 min read
What Exactly Is Testability in Software Development?
Top Architecture Tech Stack
Top Architecture Tech Stack
Nov 20, 2023 · Databases

Design and Application of High‑Performance Database Clusters: Read/Write Separation, Sharding, and NoSQL

This article explains the principles and practical designs of high‑performance database clusters, covering read/write separation, master‑slave replication lag, distribution mechanisms, sharding (both vertical and horizontal), business‑level partitioning, and the role of NoSQL technologies such as key‑value stores, document databases, columnar databases, and full‑text search engines.

NoSQLRead-Write Separationdatabase
0 likes · 33 min read
Design and Application of High‑Performance Database Clusters: Read/Write Separation, Sharding, and NoSQL
Architect
Architect
Nov 18, 2023 · Databases

JOIN vs IN: Choosing the Faster MySQL Query Method

Through a series of local experiments on MySQL tables with varying data volumes, this article analyzes the performance trade‑offs between JOIN queries and IN‑list queries, detailing execution plans, PHP benchmarking, and the impact of large IN lists on query speed and reliability.

JOINMySQLPHP
0 likes · 10 min read
JOIN vs IN: Choosing the Faster MySQL Query Method
MaGe Linux Operations
MaGe Linux Operations
Nov 18, 2023 · Databases

Understanding SQL Server Deadlocks: Causes, Detection, and Prevention

This article explains the principle of deadlocks, the four necessary conditions, how they manifest in SQL Server resources, methods for investigating deadlocks with system procedures and Profiler, and practical techniques—including isolation level changes, lock timeouts, and bound sessions—to avoid and resolve them.

SQL Serverdeadlocklocking
0 likes · 17 min read
Understanding SQL Server Deadlocks: Causes, Detection, and Prevention
php Courses
php Courses
Nov 18, 2023 · Backend Development

Implementing Caching in PHP: File, Database, and Memory Cache Examples

This article explains how caching improves website performance by reducing server load and response time, and provides PHP code examples for file‑based, database‑based, and memory‑based caches, guiding developers on selecting the appropriate cache type for their needs.

BackendCachingDatabaseCache
0 likes · 4 min read
Implementing Caching in PHP: File, Database, and Memory Cache Examples
Java Architect Essentials
Java Architect Essentials
Nov 17, 2023 · Backend Development

10 Java Stream API Best Practices Every Backend Developer Should Know

This article presents ten essential best‑practice guidelines for using Java’s Stream API—covering primitive streams, avoiding nested streams, cautious parallelism, lazy evaluation, side‑effect avoidance, immutability, filter‑before‑map, method references, distinct, and sorted—to help developers write more efficient, readable, and reliable functional code.

BackendFunctional ProgrammingStream API
0 likes · 8 min read
10 Java Stream API Best Practices Every Backend Developer Should Know
JD Retail Technology
JD Retail Technology
Nov 17, 2023 · Backend Development

How JaCoCo Can Reveal and Eliminate Zombie Code to Boost Backend Efficiency

By instrumenting Java services with JaCoCo’s agent and analyzing runtime coverage data, teams can identify unused (“zombie”) code, safely remove or deactivate it, and consequently reduce maintenance costs, shorten delivery cycles, and improve overall system performance and developer productivity.

JaCoCoJavabackend optimization
0 likes · 12 min read
How JaCoCo Can Reveal and Eliminate Zombie Code to Boost Backend Efficiency
Deepin Linux
Deepin Linux
Nov 17, 2023 · Backend Development

Understanding Coroutines: Principles, Implementations, and Performance in C/C++

This article explains the concept of coroutines as lightweight user‑level threads, compares them with traditional threads, details various implementation mechanisms in C/C++ (including libco and NtyCo), and demonstrates how they improve I/O‑bound server performance through examples and code snippets.

C++EpollNtyCo
0 likes · 45 min read
Understanding Coroutines: Principles, Implementations, and Performance in C/C++
php Courses
php Courses
Nov 17, 2023 · Backend Development

Cross-Platform PHP Caching Techniques with File and Redis Implementations

This article explains how to implement cross‑platform caching in PHP using both file‑based storage and Redis, providing complete code examples and detailing the functions involved to ensure compatibility, performance, and proper cache expiration handling.

BackendCachingFileCache
0 likes · 5 min read
Cross-Platform PHP Caching Techniques with File and Redis Implementations
Java Architect Essentials
Java Architect Essentials
Nov 16, 2023 · Backend Development

Why Does HashMap.keySet() Iterate Twice? Uncovering Java’s Internal Iterator Mechanics

This article explains why iterating a Java HashMap with keySet() results in two traversals, detailing the internal iterator creation, the role of KeyIterator and HashIterator classes, and how the do‑while loop in HashIterator’s constructor locates the first entry, with code examples and bytecode analysis.

HashIteratorHashMapIterator
0 likes · 9 min read
Why Does HashMap.keySet() Iterate Twice? Uncovering Java’s Internal Iterator Mechanics
Python Programming Learning Circle
Python Programming Learning Circle
Nov 16, 2023 · Fundamentals

Key New Features and Improvements in Python 3.12

Python 3.12 introduces enhanced error messages, expanded f‑string capabilities, inline collection optimizations, new buffer protocol support, refined type‑annotation syntax, additional language tweaks, and performance‑focused garbage‑collector changes, providing developers with clearer diagnostics and more expressive, efficient code constructs.

3.12error messagesf-strings
0 likes · 10 min read
Key New Features and Improvements in Python 3.12
php Courses
php Courses
Nov 16, 2023 · Backend Development

Using PHP Caching (APC) to Improve Website Performance and Security

This article explains why caching is essential for web applications, introduces PHP caching options such as APC, Memcache, and Redis, and provides step‑by‑step installation and code examples showing how to implement APC caching to boost speed and protect site security.

BackendCachingPHP
0 likes · 6 min read
Using PHP Caching (APC) to Improve Website Performance and Security
Aikesheng Open Source Community
Aikesheng Open Source Community
Nov 15, 2023 · Databases

Understanding Redis Hotkeys: Issues, Detection Methods, and Mitigation Strategies

This article explains what Redis hotkeys are, the performance and replication problems they cause, various techniques for detecting them—including client statistics, MONITOR, the HOTKEYS command, and TCP packet capture—and practical mitigation approaches such as sharding, multi‑level caching, and monitoring optimization.

HotKeyRedismonitoring
0 likes · 9 min read
Understanding Redis Hotkeys: Issues, Detection Methods, and Mitigation Strategies
OPPO Kernel Craftsman
OPPO Kernel Craftsman
Nov 14, 2023 · Fundamentals

Recap of the 2023 CLSF (China Linux Storage, Memory Management & File System) Workshop

The 2023 China Linux Storage, Memory Management and File System Workshop, held on October 26‑27 and organized by OPPO, gathered leading Linux kernel developers from firms such as SUSE, Intel, AMD, Huawei and academic institutions to present keynotes and talks on memory reclamation, scalability, storage, BPF, container images, and future kernel innovations, fostering collaborative advancement of Chinese kernel development.

2023File SystemWorkshop
0 likes · 6 min read
Recap of the 2023 CLSF (China Linux Storage, Memory Management & File System) Workshop
Java Captain
Java Captain
Nov 11, 2023 · Backend Development

Analyzing and Reproducing OutOfMemoryError in MyBatis-based Java Services

This article examines the causes of Java OutOfMemoryError in a distributed backend service, analyzes MyBatis-related memory leaks, demonstrates a reproducible scenario with large SQL concatenations and multithreading, and offers practical mitigation strategies to prevent heap and metaspace overflow.

BackendJavaMemory Leak
0 likes · 6 min read
Analyzing and Reproducing OutOfMemoryError in MyBatis-based Java Services
Rare Earth Juejin Tech Community
Rare Earth Juejin Tech Community
Nov 11, 2023 · Backend Development

Performance Comparison of List.sort() vs Stream.sorted() in Java and Optimization Techniques

The article analyzes why a Java API endpoint took eight seconds, demonstrates through benchmarks that List.sort() outperforms Stream.sorted(), shows how sorting on computed columns and using BigDecimal can drastically slow execution, and presents three practical optimizations that reduce the response time to under a second.

BigDecimalJavalist.sort
0 likes · 8 min read
Performance Comparison of List.sort() vs Stream.sorted() in Java and Optimization Techniques
ITPUB
ITPUB
Nov 10, 2023 · Databases

Why Does MySQL Replication Lag? Causes and Practical Fixes

This article explains what MySQL master‑slave replication lag is, walks through the replication workflow, identifies the main technical reasons for delay such as single‑threaded replay and lock contention, and provides concrete configuration and architectural solutions to reduce or eliminate the lag.

LagMySQLTroubleshooting
0 likes · 8 min read
Why Does MySQL Replication Lag? Causes and Practical Fixes
dbaplus Community
dbaplus Community
Nov 9, 2023 · Fundamentals

Mastering Java Locks: From Pessimistic to Distributed and Optimizations

This article explains the full spectrum of Java locking mechanisms—including pessimistic, optimistic, distributed, reentrant, spin, read/write, fair vs. non‑fair, JVM lock states, and optimization techniques—detailing their principles, use‑cases, SQL/Redis examples, and performance trade‑offs.

JVMLocksconcurrency
0 likes · 16 min read
Mastering Java Locks: From Pessimistic to Distributed and Optimizations
DeWu Technology
DeWu Technology
Nov 8, 2023 · Frontend Development

Mastering Front‑End Monitoring: From Performance to Error Alerts

This article provides a comprehensive guide to front‑end monitoring, covering performance metrics, exception alerts, daily inspections, instrumentation methods, data collection, log storage, and practical code examples for building a robust monitoring system that improves stability, user experience, and business insight.

Error TrackingJavaScriptWeb Analytics
0 likes · 20 min read
Mastering Front‑End Monitoring: From Performance to Error Alerts
php Courses
php Courses
Nov 8, 2023 · Backend Development

Implementing Thread Pools and Coroutines in PHP

This article explains how to implement low‑level thread pools and coroutine mechanisms in PHP, providing detailed code examples that demonstrate creating a ThreadPool class, managing worker threads, and using generator‑based coroutines to achieve high‑performance, concurrent execution.

PHPThread Poolconcurrency
0 likes · 5 min read
Implementing Thread Pools and Coroutines in PHP
php Courses
php Courses
Nov 8, 2023 · Backend Development

Implementing Caching Strategies in PHP to Improve User Experience

This article explains various PHP caching techniques—including file‑system, memory (Memcache and Redis), and framework (Laravel) caches—providing code examples and configuration steps to reduce database load, speed up page rendering, and enhance overall user experience.

CachingLaravelPHP
0 likes · 5 min read
Implementing Caching Strategies in PHP to Improve User Experience
Didi Tech
Didi Tech
Nov 7, 2023 · Mobile Development

Root Cause Analysis and Resolution of Periodic Crashes Caused by File Handle Leak in Didi Android Delivery Merchant App

The Didi Android delivery merchant app suffered periodic crashes on Huawei devices because a null‑checked fopen in libpush.so caused an unchecked fwrite, leaking file handles until the per‑process limit was reached, and the issue was resolved by adding proper null checks, closing handles, and instituting systematic FD‑leak monitoring and code‑review safeguards.

AndroidHandle LeakNative Library
0 likes · 13 min read
Root Cause Analysis and Resolution of Periodic Crashes Caused by File Handle Leak in Didi Android Delivery Merchant App
php Courses
php Courses
Nov 7, 2023 · Backend Development

Advantages and Disadvantages of Caching in PHP Development with Code Examples

This article examines the benefits and drawbacks of implementing caching in PHP backend development, illustrating how caching can boost page load speed, reduce database load, and improve performance, while also discussing cache expiration, data consistency, and memory usage, accompanied by practical code examples.

CachingPHPRedis
0 likes · 6 min read
Advantages and Disadvantages of Caching in PHP Development with Code Examples
Rare Earth Juejin Tech Community
Rare Earth Juejin Tech Community
Nov 7, 2023 · Frontend Development

Implementing Fixed, Variable, and Dynamic Height Virtual Lists with react-window

This article explains the core principles of virtual scrolling and provides complete React implementations for three types of virtual lists—fixed‑height, variable‑height, and dynamic‑height—using react-window, including detailed code snippets, performance considerations, and optimization suggestions.

Reactfrontendperformance
0 likes · 17 min read
Implementing Fixed, Variable, and Dynamic Height Virtual Lists with react-window
Rare Earth Juejin Tech Community
Rare Earth Juejin Tech Community
Nov 7, 2023 · Mobile Development

Comprehensive Guide to Building Modern Android Apps in 2023

This article provides a detailed overview of the latest 2023 trends, tools, libraries, architectural patterns, and best practices for developing modern Android applications, covering everything from Kotlin and Jetpack Compose to Clean Architecture, modularization, performance optimization, and Google Play features.

AndroidDependency InjectionJetpack Compose
0 likes · 16 min read
Comprehensive Guide to Building Modern Android Apps in 2023
Laravel Tech Community
Laravel Tech Community
Nov 6, 2023 · Databases

MySQL InnoDB Configuration Parameters and Optimization Guide

This article explains how to tune MySQL's InnoDB settings—including buffer pool size, log file configuration, I/O threads, flush behavior, and timeout values—by providing detailed explanations and exact configuration snippets to improve performance and resource usage.

InnoDBMySQLconfiguration
0 likes · 7 min read
MySQL InnoDB Configuration Parameters and Optimization Guide
php Courses
php Courses
Nov 6, 2023 · Backend Development

Techniques for Optimizing Web Page Load Speed in PHP Development

Improving web page load speed is crucial for user experience, and PHP developers can employ methods such as caching, script and stylesheet compression, database query optimization, reducing HTTP requests, using CDNs, output compression, cache plugins, asynchronous loading, and image optimization to significantly enhance performance.

CDNCachingPHP
0 likes · 5 min read
Techniques for Optimizing Web Page Load Speed in PHP Development
Liangxu Linux
Liangxu Linux
Nov 2, 2023 · Fundamentals

Why Is the Linux Kernel TCP/IP Stack Hard to Scale Compared to User‑Space Stacks?

The article examines the scalability limitations of the Linux kernel TCP/IP stack, comparing its packet‑processing and connection‑setup performance with user‑space stacks such as mTCP and F‑Stack, explains how hash‑table locking and spin‑lock contention cause poor CPS scaling, and argues why user‑space implementations often achieve higher throughput despite their own trade‑offs.

KernelTCPnetwork-stack
0 likes · 16 min read
Why Is the Linux Kernel TCP/IP Stack Hard to Scale Compared to User‑Space Stacks?
Laravel Tech Community
Laravel Tech Community
Nov 2, 2023 · Databases

MyISAM Related Options and Configuration Guidelines

This article explains the purpose, recommended settings, and tuning tips for MyISAM‑related MySQL variables such as key_buffer_size, read_buffer_size, read_rnd_buffer_size, bulk_insert_buffer_size, myisam_sort_buffer_size, myisam_max_sort_file_size, myisam_repair_threads, and myisam_recover, helping DBAs optimize indexing and query performance.

BuffersMyISAMMySQL
0 likes · 4 min read
MyISAM Related Options and Configuration Guidelines
Top Architecture Tech Stack
Top Architecture Tech Stack
Nov 2, 2023 · Databases

Strategies for Efficiently Importing One Billion Records into MySQL

This article analyzes the constraints of loading one billion 1 KB log records from distributed storage into MySQL, evaluates single‑table limits, proposes batch‑insert, sharding, storage‑engine, file‑reading, and distributed‑task coordination techniques to achieve high‑speed, ordered, and reliable data ingestion.

Batch InsertJavaMySQL
0 likes · 18 min read
Strategies for Efficiently Importing One Billion Records into MySQL
Sohu Tech Products
Sohu Tech Products
Nov 1, 2023 · Fundamentals

Boost Python Performance with Numba: Real-World Pandas Benchmarks

This article introduces Numba, explains its parallel, distributed, and GPU acceleration capabilities, and provides detailed Pandas benchmark examples that show how Numba’s JIT compilation dramatically speeds up data‑frame operations compared with default and Cython engines.

JITPythonbenchmark
0 likes · 7 min read
Boost Python Performance with Numba: Real-World Pandas Benchmarks
Efficient Ops
Efficient Ops
Nov 1, 2023 · Databases

Why MySQL Single Tables Should Stay Below 20 Million Rows: Theory & Practice

This article explains the technical reasons why a MySQL single table should not exceed about 20 million rows, covering limits from auto‑increment primary keys, data‑page structures, B+‑tree storage calculations, and practical partitioning recommendations for large‑scale applications.

B+ TreeMySQLTable Size Limits
0 likes · 9 min read
Why MySQL Single Tables Should Stay Below 20 Million Rows: Theory & Practice
Amap Tech
Amap Tech
Nov 1, 2023 · Backend Development

Gaode Go Ecosystem Evolution, Cloud‑Native Serverless Practices, and Project Refactoring Experience

The article details Gaode’s journey of building a high‑performance Go ecosystem that scaled from zero to tens of millions of QPS, comparing Go with Java and Erlang, outlining cloud‑native serverless architecture, and sharing real‑world refactoring and optimization case studies such as a million‑QPS rendering gateway and a Go‑based sharding middleware.

GCGoServerless
0 likes · 34 min read
Gaode Go Ecosystem Evolution, Cloud‑Native Serverless Practices, and Project Refactoring Experience
Java Interview Crash Guide
Java Interview Crash Guide
Nov 1, 2023 · Backend Development

10+ Proven Ways to Supercharge Java for‑Loops for Faster Code

This article outlines over ten practical techniques for optimizing Java for‑loops, including caching list size, using reverse iteration, employing iterators, leveraging enhanced for‑each loops, minimizing method calls, and handling exceptions efficiently, helping developers write cleaner and more performant code.

CodingOptimizationbest-practices
0 likes · 7 min read
10+ Proven Ways to Supercharge Java for‑Loops for Faster Code
php Courses
php Courses
Nov 1, 2023 · Backend Development

Improving WeChat Mini Program User Experience with PHP: Asynchronous Requests, Data Caching, and Image Optimization

To boost the performance and user experience of WeChat Mini Programs, this guide demonstrates PHP techniques including asynchronous API calls, Redis-based data caching, and image optimization with the GD library, providing practical code examples for faster page loads and smoother interactions.

CachingImageOptimizationPHP
0 likes · 4 min read
Improving WeChat Mini Program User Experience with PHP: Asynchronous Requests, Data Caching, and Image Optimization
Beijing SF i-TECH City Technology Team
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 DevelopmentOptimizationWeChat mini-program
0 likes · 13 min read
Performance Metrics and Optimization Strategies for WeChat Mini Programs
JD Retail Technology
JD Retail Technology
Oct 31, 2023 · Databases

How to Identify and Eliminate Redis BigKey Bottlenecks

This article explains what constitutes a Redis BigKey, why oversized keys degrade performance through data skew, network blocking, slow queries and CPU pressure, and provides practical detection methods, open‑source tooling, and mitigation techniques such as lazy‑free deletion, incremental scans, and key sharding.

BigKeyDELETEOptimization
0 likes · 21 min read
How to Identify and Eliminate Redis BigKey Bottlenecks
Ximalaya Technology Team
Ximalaya Technology Team
Oct 31, 2023 · Frontend Development

What Is WebAssembly? Advantages, Front‑End Usage, and Development Guide

WebAssembly (Wasm) is a fast, binary bytecode format that lets browsers execute near‑native code written in languages like C, C++ or Rust, offering superior performance for CPU‑intensive tasks such as games and data processing, and can be integrated into front‑end projects via fetch, instantiateStreaming, and toolchains like Emscripten or wasm‑pack.

C++JavaScriptRust
0 likes · 10 min read
What Is WebAssembly? Advantages, Front‑End Usage, and Development Guide
Java Architect Essentials
Java Architect Essentials
Oct 30, 2023 · Cloud Native

Why Cloudflare Replaced NGINX with Pingora: Design Decisions, Performance Gains, and Security Improvements

The article explains how Cloudflare built Pingora, a Rust‑based, cloud‑native reverse proxy that surpasses NGINX in performance, efficiency, and safety by redesigning the worker model, improving connection reuse, and leveraging multithreading and Tokio, while also offering greater extensibility for future services.

CloudflareHTTPPingora
0 likes · 13 min read
Why Cloudflare Replaced NGINX with Pingora: Design Decisions, Performance Gains, and Security Improvements
LouZai
LouZai
Oct 30, 2023 · Databases

How to Diagnose and Fix MySQL Master‑Slave Replication Lag

The article explains what MySQL master‑slave replication lag is, analyzes why it occurs—especially during relay‑log replay and large DDL/DML operations—and provides concrete configuration, hardware, and architectural solutions to reduce or eliminate the delay.

LagMaster‑SlaveMySQL
0 likes · 8 min read
How to Diagnose and Fix MySQL Master‑Slave Replication Lag
ITPUB
ITPUB
Oct 28, 2023 · Databases

Why Is Single‑Threaded Redis So Fast? Uncover the Secrets

This article explains why Redis, despite being described as single‑threaded, achieves extremely high performance by using a single thread for network I/O and command execution, avoiding multithreading overhead, and leveraging efficient in‑memory data structures together with an event‑driven multiplexing I/O model.

I/O multiplexingRedisdatabases
0 likes · 12 min read
Why Is Single‑Threaded Redis So Fast? Uncover the Secrets
Selected Java Interview Questions
Selected Java Interview Questions
Oct 27, 2023 · Backend Development

Diagnosing and Optimizing Throughput and CPU Usage in a Java Spring Backend Service

The article details a step‑by‑step investigation of a Java Spring backend that initially achieved only 50 req/s under load, identifies bottlenecks such as slow SQL, excessive logging, thread‑pool misconfiguration and costly Spring bean creation, and demonstrates how targeted optimizations roughly doubled throughput while reducing response times.

CPUJavaOptimization
0 likes · 14 min read
Diagnosing and Optimizing Throughput and CPU Usage in a Java Spring Backend Service
Architecture Digest
Architecture Digest
Oct 27, 2023 · Backend Development

10 Essential Java Stream API Tips and Best Practices

This article presents ten practical tips for using the Java Stream API effectively, covering primitive streams for performance, avoiding nested streams, careful use of parallel streams, lazy evaluation, side‑effect avoidance, immutability, proper ordering of filter and map, method references, distinct, and sorted operations, each illustrated with concise code examples.

Functional ProgrammingJavaStream API
0 likes · 7 min read
10 Essential Java Stream API Tips and Best Practices
Architecture Digest
Architecture Digest
Oct 26, 2023 · Backend Development

Diagnosing and Resolving Redis Connection Pool Blocking in a Spring Boot Application

The article details a week‑long investigation of a sandbox environment where Spring Boot APIs became unresponsive due to Redis connection pool blocking, describing the use of system tools, JVM thread analysis, and code inspection to identify mis‑configured pool settings and recommending proper connection handling with Spring's RedisTemplate.

ArthasJedisRedis
0 likes · 8 min read
Diagnosing and Resolving Redis Connection Pool Blocking in a Spring Boot Application
Programmer DD
Programmer DD
Oct 25, 2023 · Backend Development

Why G1 Garbage Collector Beats CMS in Java 7+

The G1 Garbage Collector, introduced in Java 7 update 4, replaces CMS by using a region‑based design that minimizes pause times and improves throughput, and a detailed video with diagrams and code examples is provided to deepen understanding of its operation.

G1 GCJVMJava
0 likes · 2 min read
Why G1 Garbage Collector Beats CMS in Java 7+
Bilibili Tech
Bilibili Tech
Oct 25, 2023 · Backend Development

Performance Optimization Practices in Bilibili's Risk Control Engine

To overcome storage, compute, and I/O bottlenecks in Bilibili’s risk‑control engine, the team combined pre‑fetching with Redis caching, batch retrieval, asynchronous writes via Railgun, aggressive log compression, and a multi‑level cache plus Bloom filter, cutting latency to sub‑100 ms, reducing Redis QPS by over 90 % and storage by ~38 %, while supporting million‑level query throughput.

BackendBatch ProcessingCompression
0 likes · 22 min read
Performance Optimization Practices in Bilibili's Risk Control Engine
HomeTech
HomeTech
Oct 25, 2023 · Operations

How Metrics‑Driven Development Supercharges a Used‑Car Platform

This article examines how a metrics‑driven development approach, combined with observability tools like Prometheus, helped a large online used‑car marketplace improve system insight, accelerate business processes, and deliver measurable performance and efficiency gains across both customer‑facing and dealer‑facing operations.

Data-Driven EngineeringMetrics-Driven Developmentmonitoring
0 likes · 16 min read
How Metrics‑Driven Development Supercharges a Used‑Car Platform
Rare Earth Juejin Tech Community
Rare Earth Juejin Tech Community
Oct 25, 2023 · Frontend Development

Implementing Web Page Screenshot Functionality in the Browser: Techniques, Libraries, and Optimizations

This article explores how to capture and process screenshots of web pages directly in the browser, discussing canvas drawImage basics, pixel extraction, the trade‑offs of using html2canvas versus dom‑to‑image, performance and bundle size considerations, and alternative plugin‑based approaches.

Canvasdom to imagefrontend
0 likes · 18 min read
Implementing Web Page Screenshot Functionality in the Browser: Techniques, Libraries, and Optimizations
Java Architect Essentials
Java Architect Essentials
Oct 24, 2023 · Backend Development

10 Essential Java Stream API Best Practices

This article presents ten practical Java Stream API best‑practice tips—including using primitive streams, avoiding nested streams, cautious parallelism, lazy evaluation, side‑effect prevention, immutability, proper ordering of filter/map, method references, distinct and sorted usage—to help developers write more efficient, readable, and safe stream code.

Functional ProgrammingJavaStream API
0 likes · 8 min read
10 Essential Java Stream API Best Practices
MoonWebTeam
MoonWebTeam
Oct 24, 2023 · Frontend Development

Choosing the Right Web Rendering Mode: From CSR to ISR Explained

This article walks you through the evolution of web rendering modes—from early static pages to modern CSR, SSR, SSG, ISR, and edge‑rendering techniques—explaining their design ideas, pros and cons, and how to pick the best fit for different performance, cost, and development scenarios.

CSRRenderingSSR
0 likes · 36 min read
Choosing the Right Web Rendering Mode: From CSR to ISR Explained
ByteFE
ByteFE
Oct 23, 2023 · Frontend Development

Master High‑Performance Data Tables with VTable: A Quick‑Start Guide

This guide introduces VTable, an open‑source high‑performance table component built on VRender, covering installation via npm or CDN, basic usage, table types, cell rendering options, interaction features, theming, and performance characteristics for modern web applications.

Data TableJavaScriptUI Component
0 likes · 9 min read
Master High‑Performance Data Tables with VTable: A Quick‑Start Guide
Architecture Digest
Architecture Digest
Oct 23, 2023 · Backend Development

Optimizing SpringBoot Startup Time: Analyzing Bean Scanning and Initialization Bottlenecks

This article investigates why a SpringBoot service takes 6‑7 minutes to start, identifies the bean‑scanning and bean‑initialization phases as the main performance culprits, and presents concrete JavaConfig and starter‑based solutions to reduce startup time to around 40 seconds while handling cache auto‑configuration pitfalls.

AutoConfigurationBeanScanningJavaConfig
0 likes · 19 min read
Optimizing SpringBoot Startup Time: Analyzing Bean Scanning and Initialization Bottlenecks
Spring Full-Stack Practical Cases
Spring Full-Stack Practical Cases
Oct 23, 2023 · Backend Development

Boost Spring Performance: AOP Logging, Caching, Thread Pools & DB Optimizations

This article presents practical Spring performance optimization techniques—including AOP‑based logging, second‑level caching with @Cacheable, reducing database queries via fetch strategies, employing thread‑pool executors, and general database query tuning—to improve application speed and resource efficiency.

AOPCachingSpring
0 likes · 9 min read
Boost Spring Performance: AOP Logging, Caching, Thread Pools & DB Optimizations
NetEase Cloud Music Tech Team
NetEase Cloud Music Tech Team
Oct 20, 2023 · Mobile Development

How to Seamlessly Replace OkHttp with Cronet on Android

This article details the motivation, architecture, and step‑by‑step integration of Google’s Cronet network library into NetEase Cloud Music’s Android client, covering adaptation layers, interceptor handling, timeout support, compatibility fixes, performance gains, and future QUIC enhancements.

AndroidCronetNetwork Library
0 likes · 15 min read
How to Seamlessly Replace OkHttp with Cronet on Android
JD Retail Technology
JD Retail Technology
Oct 20, 2023 · Databases

Understanding Pagination Issues with ORDER BY and LIMIT in MySQL

This article examines why combining ORDER BY with LIMIT in MySQL pagination can produce duplicate rows on subsequent pages, analyzes the optimizer’s priority‑queue behavior introduced in version 5.6, and presents practical solutions such as using unique sort keys, adding ID ordering, and understanding deep‑pagination limitations.

LIMITMySQLORDER BY
0 likes · 8 min read
Understanding Pagination Issues with ORDER BY and LIMIT in MySQL
Architecture & Thinking
Architecture & Thinking
Oct 17, 2023 · Backend Development

Boost Throughput with RocketMQ Batch Messaging: How and Why

This article explains why batch messaging in RocketMQ is crucial for high-throughput systems, outlines its characteristics and ideal scenarios, and provides complete Java code examples for sending and splitting large batches to improve performance and reduce downstream API calls.

Batch MessagingJavaMessage Queue
0 likes · 7 min read
Boost Throughput with RocketMQ Batch Messaging: How and Why
NetEase Cloud Music Tech Team
NetEase Cloud Music Tech Team
Oct 17, 2023 · Frontend Development

Supporting Core Homepage Scenarios with Visual Building and Low-Code: NetEase Cloud Music Case Study

NetEase Cloud Music’s Lingqu visual‑building platform lets a single front‑end developer drag‑and‑drop DSL cards to design, deploy and manage the high‑traffic Discovery and Music homepage flows, delivering near‑native performance, dynamic iteration, data‑decoupled sourcing, fine‑grained targeting and comprehensive quality‑assurance without traditional release cycles.

DSLfrontendperformance
0 likes · 11 min read
Supporting Core Homepage Scenarios with Visual Building and Low-Code: NetEase Cloud Music Case Study
php Courses
php Courses
Oct 16, 2023 · Backend Development

Techniques to Optimize PHP and MySQL Access Speed

This article presents practical methods—including indexing, query consolidation, field selection, PHP code refinements, and caching strategies with Redis and page caching—to significantly improve the performance of PHP‑MySQL applications, accompanied by concrete code examples.

CachingMySQLOptimization
0 likes · 6 min read
Techniques to Optimize PHP and MySQL Access Speed
Rare Earth Juejin Tech Community
Rare Earth Juejin Tech Community
Oct 16, 2023 · Frontend Development

Comprehensive Front‑End Code Review Checklist and Best Practices

This article presents a detailed front‑end code review guide covering quality, functionality, performance, security, testability, readability, reusability, compatibility, polyfill configuration, and practical testing examples such as Cypress end‑to‑end tests, all organized with clear checklists and code snippets.

best practicescode reviewfrontend
0 likes · 17 min read
Comprehensive Front‑End Code Review Checklist and Best Practices
Efficient Ops
Efficient Ops
Oct 15, 2023 · Databases

How to Diagnose and Fix Slow Redis Responses: A Step-by-Step Guide

This article walks through practical methods for troubleshooting slow service alerts, diagnosing Redis performance bottlenecks, and reproducing issues with local demos and load simulations, offering concrete metrics, command‑line checks, and mitigation strategies such as scaling, rate‑limiting, and pipeline optimization.

RedisTroubleshootingmonitoring
0 likes · 22 min read
How to Diagnose and Fix Slow Redis Responses: A Step-by-Step Guide
21CTO
21CTO
Oct 15, 2023 · Backend Development

Rust vs Go for Backend Development: Which Language Wins?

This article compares Rust and Go across performance, language features, concurrency, memory safety, ecosystem, learning curve, and real‑world use cases to help backend developers choose the most suitable language for their projects.

GoRustbackend development
0 likes · 19 min read
Rust vs Go for Backend Development: Which Language Wins?
Wukong Talks Architecture
Wukong Talks Architecture
Oct 12, 2023 · R&D Management

How to Set Reasonable Team Goals Using the SMART Principle

This article explains how applying the SMART framework—Specific, Measurable, Achievable, Relevant, and Time‑bound—helps teams define clear, actionable goals, differentiate measurable KPIs from broader KRAs, and avoid common pitfalls such as vague objectives or resource‑driven targets.

KPIsR&DSMART
0 likes · 5 min read
How to Set Reasonable Team Goals Using the SMART Principle
dbaplus Community
dbaplus Community
Oct 11, 2023 · Databases

Detect and Cure MySQL Replication Lag: Step‑by‑Step Guide

This article explains how to identify whether MySQL replication delay originates from the I/O thread or SQL thread, demonstrates diagnostic commands, and provides practical tips, configuration tweaks, and monitoring tools such as pt‑stalk to reduce lag and improve replication performance.

MySQLReplicationperformance
0 likes · 11 min read
Detect and Cure MySQL Replication Lag: Step‑by‑Step Guide
JD Tech
JD Tech
Oct 9, 2023 · Frontend Development

Design and Implementation of a Flexible H5 Navigation Bar Component for Mobile Applications

This article analyzes the limitations of native navigation bars on mobile pages, proposes a reusable H5 navigation‑bar component (@pango/navigation-bar) with performance, cost, and user‑experience benefits, details its architecture, configuration, code usage, exception handling, and adaptation for foldable screens, and outlines the open‑source plan.

ComponentMobile WebReact
0 likes · 17 min read
Design and Implementation of a Flexible H5 Navigation Bar Component for Mobile Applications
dbaplus Community
dbaplus Community
Oct 8, 2023 · Databases

How to Optimize Pagination for Massive MySQL Tables with Sharding

When a single MySQL table grows to millions of rows, offset‑based pagination becomes painfully slow, so this article explains why, measures the performance impact, and presents three practical sharding‑aware pagination strategies—including global query, jump‑page prohibition, and a two‑step query method—along with concrete SQL rewrites and optimization tips.

MySQLSQLpagination
0 likes · 16 min read
How to Optimize Pagination for Massive MySQL Tables with Sharding
php Courses
php Courses
Oct 7, 2023 · Backend Development

PHP Performance Optimization Techniques and Functions

This article outlines key PHP performance optimization strategies—including caching with Memcache or Redis, using efficient database access via PDO, selecting optimal loop constructs like foreach and array_map, and avoiding redundant function calls—to improve execution speed and user experience.

CachingLoopsOptimization
0 likes · 5 min read
PHP Performance Optimization Techniques and Functions
21CTO
21CTO
Oct 5, 2023 · Fundamentals

What’s Coming in Python 3.12? Inside the Faster CPython Roadmap

The article outlines the major performance and architectural goals for Python 3.12, describing the Faster CPython project’s specialized opcodes, multithreading proposals, object size reductions, memory‑management improvements, and API stability efforts that aim to boost speed and maintainability.

CPythonPEPPython
0 likes · 8 min read
What’s Coming in Python 3.12? Inside the Faster CPython Roadmap