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Youzan Coder
Youzan Coder
Dec 14, 2018 · Operations

Youzan Full‑Link Load Testing Architecture and Implementation

Youzan’s full‑link load‑testing architecture combines a traffic generator, a data‑factory pipeline, and the Maxim platform to replay realistic e‑commerce user actions, tag and isolate test traffic via unified headers, route reads/writes to shadow storage, and integrate Gatling for capacity planning, degradation, alarm, disaster‑recovery and throttling drills.

Big DataData IsolationDistributed Systems
0 likes · 13 min read
Youzan Full‑Link Load Testing Architecture and Implementation
Efficient Ops
Efficient Ops
Nov 25, 2018 · Operations

Top 13 Essential Linux Tools for System Monitoring and Security

This article introduces thirteen practical Linux operation tools—including Nethogs, IOZone, IOTop, IPtraf, IFTop, Fail2ban, and more—providing concise descriptions, download links, and step‑by‑step installation commands to help system administrators monitor performance, network traffic, and protect against attacks.

LinuxOperationsSecurity
0 likes · 11 min read
Top 13 Essential Linux Tools for System Monitoring and Security
Didi Tech
Didi Tech
Nov 20, 2018 · Operations

Didi's Message Queue Architecture, Migration Strategies, and RocketMQ Operational Practices

At Didi, the team replaced a chaotic mix of Kafka, Redis, and other queues with a custom, RocketMQ‑based service, using dual‑write and dual‑read migration, extensive performance testing, custom failover, batch extensions, and operational tweaks to achieve stable high‑throughput, low‑latency messaging at massive scale.

Message QueueOperationsSystem Migration
0 likes · 17 min read
Didi's Message Queue Architecture, Migration Strategies, and RocketMQ Operational Practices
360 Quality & Efficiency
360 Quality & Efficiency
Nov 12, 2018 · Mobile Development

Understanding VSync and Measuring Smoothness on Android

This article explains Android's VSync mechanism, defines smoothness metrics such as FPS, skipped frames and smoothness, describes how VSync timing affects rendering, and provides practical testing commands like `adb shell dumpsys gfxinfo` and `adb shell dumpsys SurfaceFlinger` for measuring frame performance.

AndroidMobile Developmentfps
0 likes · 8 min read
Understanding VSync and Measuring Smoothness on Android
Alibaba Cloud Infrastructure
Alibaba Cloud Infrastructure
Nov 11, 2018 · Operations

A Decade of Double 11: Technical Evolution and Operational Lessons from Alibaba

Over ten years of Alibaba's Double 11, the company transformed a modest marketing event into a global e‑commerce platform by continuously improving backend architecture, scaling strategies, full‑link stress testing, multi‑active data centers, cloud migration, and real‑time incident response, offering valuable operational insights.

AlibabaOperationsbackend
0 likes · 15 min read
A Decade of Double 11: Technical Evolution and Operational Lessons from Alibaba
JD Retail Technology
JD Retail Technology
Nov 9, 2018 · Operations

JD Finance Technical Operations and System Optimization for the 11.11 Promotion

The JD Finance technical teams—including Wealth R&D, Consumer Finance, Payment, Middle‑Platform, and Crowdfunding—conducted comprehensive system reviews, performance stress tests, capacity expansions, monitoring enhancements, and emergency downgrade plans to ensure stable, high‑throughput service during the 11.11 shopping festival.

11.11 promotionSystem Optimizationcapacity planning
0 likes · 8 min read
JD Finance Technical Operations and System Optimization for the 11.11 Promotion
Alibaba Cloud Developer
Alibaba Cloud Developer
Nov 5, 2018 · Operations

How Alibaba Conquered Double 11: A Decade of Scaling, Crises, and Lessons

From the humble 2009 launch of Double 11 to the massive, cloud-native, multi-region architecture of 2018, Alibaba’s engineers chronicle yearly technical hurdles—traffic spikes, system crashes, CDN limits, over-selling, and the evolution of stress-testing, capacity planning, and operational safeguards that turned the shopping festival into a global engineering showcase.

Cloud ComputingOperationsScalability
0 likes · 17 min read
How Alibaba Conquered Double 11: A Decade of Scaling, Crises, and Lessons
ITPUB
ITPUB
Nov 2, 2018 · Databases

How Lest Redefines Persistent Caching for Petabyte‑Scale KV Stores

This article presents Lest, a persistent KV‑store cache designed to overcome the limitations of traditional in‑memory caches by combining disk‑based persistence, lock‑free multithreading, custom protocols, and advanced load‑balancing, and it evaluates its performance on petabyte‑scale workloads.

KV StoreLestdistributed storage
0 likes · 11 min read
How Lest Redefines Persistent Caching for Petabyte‑Scale KV Stores
Youzan Coder
Youzan Coder
Oct 20, 2018 · Operations

Highlights of the Second Hangzhou Testing Salon – Full‑Chain Performance Testing, Test Engine Design, Quality Platforms, and More

The second Hangzhou Testing Salon, organized by Youzan with partners KuJiaLe, Mogujie and 51 Credit Card, gathered over 300 attendees from 130 companies to share practical insights on full‑chain performance testing, a distributed pressure‑testing engine, rule‑based quality platforms, front‑end coverage tools, search‑service reliability and data‑quality monitoring.

data monitoringfrontend coveragefull-chain testing
0 likes · 6 min read
Highlights of the Second Hangzhou Testing Salon – Full‑Chain Performance Testing, Test Engine Design, Quality Platforms, and More
JD Tech
JD Tech
Oct 8, 2018 · Operations

Overview of Shanghai Testing Team Practices at Dada‑JD.com

The article details the structure, daily responsibilities, quality‑assurance processes, automation strategies, tool development, performance testing, and quality‑culture initiatives of the Shanghai testing team at Dada‑JD.com, illustrating how systematic testing and DevOps practices enhance product stability and development efficiency.

automationci/cdperformance testing
0 likes · 15 min read
Overview of Shanghai Testing Team Practices at Dada‑JD.com
DevOps
DevOps
Sep 20, 2018 · Operations

Integrating Azure DevOps Server (TFS) with JMeter for Automated Testing

This article explains how to integrate Microsoft Azure DevOps Server (formerly TFS) with the open‑source load‑testing tool JMeter, describing the background of DevOps testing challenges, JMeter features, a demo PartsUnlimited project, pipeline design, environment setup, script execution, and performance‑testing options.

Azure DevOpsDevOpsJMeter
0 likes · 9 min read
Integrating Azure DevOps Server (TFS) with JMeter for Automated Testing
Programmer DD
Programmer DD
Aug 25, 2018 · Backend Development

Mastering Java Microbenchmarking with JMH: 12 Common Pitfalls and How to Avoid Them

This article introduces Java Microbenchmark Harness (JMH), explains why precise benchmarking matters, and walks through twelve typical testing pitfalls—such as dead‑code elimination, constant folding, loop misuse, fork isolation, method inlining, false sharing, branch prediction, and multithreading—showing how JMH helps developers obtain reliable performance measurements.

JITJMHJava
0 likes · 25 min read
Mastering Java Microbenchmarking with JMH: 12 Common Pitfalls and How to Avoid Them
JD Tech
JD Tech
Jun 30, 2018 · Operations

Essential Guide to Performance Testing: Concepts, Metrics, Process, and Best Practices

This article provides a comprehensive overview of performance testing, explaining its definition, key metrics such as throughput, response time and concurrent users, the relationship between these indicators, optimal testing timing, a step‑by‑step workflow from requirement analysis to reporting, and practical tips for effective load testing and system optimization.

Response TimeScalabilitySystem Optimization
0 likes · 8 min read
Essential Guide to Performance Testing: Concepts, Metrics, Process, and Best Practices
JD Retail Technology
JD Retail Technology
May 25, 2018 · Operations

How JD.com Scaled Mobile API Testing from Scripts to Continuous Platforms

This article chronicles JD.com's journey of evolving mobile backend API testing—from manual proxy checks to script‑based JMeter suites, then to integrated testing and performance platforms, and finally to a continuous DevOps pipeline that automates verification, monitoring, and delivery of high‑traffic services.

API testingDevOpsPlatform Engineering
0 likes · 15 min read
How JD.com Scaled Mobile API Testing from Scripts to Continuous Platforms
Architecture Digest
Architecture Digest
May 14, 2018 · Backend Development

Implementing and Optimizing a High‑Concurrency Flash Sale System with Optimistic Lock, Distributed Rate Limiting, Redis Cache, and Kafka

This article walks through building a Java‑based flash‑sale (秒杀) service, diagnosing overselling issues, and progressively enhancing it with optimistic locking, distributed rate limiting, Redis caching, and asynchronous Kafka processing to achieve higher throughput and data consistency under heavy concurrency.

JavaKafkaOptimistic Lock
0 likes · 14 min read
Implementing and Optimizing a High‑Concurrency Flash Sale System with Optimistic Lock, Distributed Rate Limiting, Redis Cache, and Kafka
Qunar Tech Salon
Qunar Tech Salon
May 11, 2018 · Databases

Minsheng Bank’s Distributed Transformation and NewSQL Practice with SequoiaDB

The article details Minsheng Bank’s shift to distributed architecture, outlining regulatory drivers, business requirements, the adoption of sharding, cross‑center high‑availability, and new‑type distributed databases, and showcases performance results of SequoiaDB 3.0 across multiple high‑throughput banking scenarios.

Distributed SystemsNewSQLSequoiaDB
0 likes · 9 min read
Minsheng Bank’s Distributed Transformation and NewSQL Practice with SequoiaDB
360 Quality & Efficiency
360 Quality & Efficiency
May 10, 2018 · Operations

LoadRunner Parameterization: Techniques and Best Practices

This article explains why and how to parameterize LoadRunner scripts, covering the benefits, core challenges, step‑by‑step configuration, data construction methods, and the various selection and update options that control parameter value retrieval during test execution.

LoadRunnerVugenparameterization
0 likes · 5 min read
LoadRunner Parameterization: Techniques and Best Practices
Alibaba Cloud Developer
Alibaba Cloud Developer
May 10, 2018 · Backend Development

Build a High‑Performance Service Mesh Agent for Dubbo – Alibaba Challenge

Alibaba’s fourth middleware performance challenge invites developers to create a high‑performance Service Mesh Agent for Dubbo, leveraging Docker containers, etcd registration, load balancing, protocol translation, and offering optimization tips such as coroutines, async communication, and caching to achieve superior QPS scores.

DockerDubboService Mesh
0 likes · 11 min read
Build a High‑Performance Service Mesh Agent for Dubbo – Alibaba Challenge
Alibaba Cloud Developer
Alibaba Cloud Developer
Apr 27, 2018 · Backend Development

Conquering the Alibaba Middleware Challenge: Building a High‑Performance Dubbo Service Mesh

The article details Alibaba's fourth Middleware Performance Challenge, explaining the Dubbo‑based Service Mesh problem, the Docker‑driven test scenario, scoring methodology, and optimization suggestions such as coroutines, async communication, and caching, offering participants a comprehensive guide to excel in the competition.

DockerDubboService Mesh
0 likes · 10 min read
Conquering the Alibaba Middleware Challenge: Building a High‑Performance Dubbo Service Mesh
Hujiang Technology
Hujiang Technology
Dec 26, 2017 · Backend Development

Comprehensive Testing Practices for Large‑Scale Platform Migration

This article details the end‑to‑end testing strategy—including data consistency, interface logic, functional, data‑sync, and performance testing—used during the migration of product, order, and RMA services, highlighting automation scripts, Python decorators, and ThreadPool‑based load testing to ensure a smooth, zero‑downtime rollout.

automationbackendmigration testing
0 likes · 11 min read
Comprehensive Testing Practices for Large‑Scale Platform Migration
JD Retail Technology
JD Retail Technology
Dec 22, 2017 · Operations

JD Quality Testing Technical Forum 2017: Advances in Performance Testing, Anti‑patterns, Container Environments, and Intelligent Tools

The article reports on the inaugural JD Quality Testing Technical Forum, where experts shared advances in performance testing platforms, test anti‑patterns, container‑based test environments, system‑graded testing strategies, and intelligent tools for handling massive data.

container testingintelligent testingperformance testing
0 likes · 9 min read
JD Quality Testing Technical Forum 2017: Advances in Performance Testing, Anti‑patterns, Container Environments, and Intelligent Tools
Hujiang Technology
Hujiang Technology
Dec 1, 2017 · Operations

Practical Guide to Performance Testing and Troubleshooting in Linux Environments

This article outlines a comprehensive, step‑by‑step approach to performance testing and root‑cause analysis for backend services, covering environment validation, tool selection, Linux system limits, dependency checks, empty‑endpoint verification, throughput calculation, log monitoring, and essential Linux commands such as netstat, vmstat, mpstat, iostat, top and free.

JMeterLinux monitoringbackend optimization
0 likes · 20 min read
Practical Guide to Performance Testing and Troubleshooting in Linux Environments
21CTO
21CTO
Sep 23, 2017 · Backend Development

Why Koa‑Grace Makes Front‑Back End Separation Faster and Simpler

This article explains how the Qudian team built a lightweight Koa‑based front‑back end separation framework called koa‑grace, covering its architecture, routing, data proxying, deployment strategies, performance benchmarks, and open‑source resources for developers seeking efficient web application development.

KoaNode.jsfront‑back end separation
0 likes · 14 min read
Why Koa‑Grace Makes Front‑Back End Separation Faster and Simpler
DevOps Engineer
DevOps Engineer
Aug 10, 2017 · Fundamentals

A Comprehensive Overview of Software Testing Concepts and Methods

This article provides a detailed overview of software testing fundamentals, covering testing stages across project lifecycles, classifications such as black‑box, white‑box, and gray‑box testing, functional and performance testing, manual versus automated testing, and specialized tests like smoke, regression, random, exploratory, and security testing.

black-box testingfunctional testingintegration testing
0 likes · 10 min read
A Comprehensive Overview of Software Testing Concepts and Methods
Baidu Intelligent Testing
Baidu Intelligent Testing
Aug 7, 2017 · R&D Management

From Junior Tester to Test Lead: A Journey of Automation, Performance, and Team Management

The author shares a detailed personal journey from a novice software tester to a testing leader, describing how self‑learning automation tools like Selenium, Appium, and RobotFramework, adopting performance testing, establishing quality processes, and leading a team transformed both personal growth and product quality.

RobotFrameworkautomationperformance testing
0 likes · 19 min read
From Junior Tester to Test Lead: A Journey of Automation, Performance, and Team Management
Baidu Intelligent Testing
Baidu Intelligent Testing
Aug 1, 2017 · Operations

Live Streaming Compatibility, Performance, and UI Testing Guidelines

This guide outlines comprehensive compatibility, performance, and UI testing procedures for live‑streaming applications, covering device and network variations, CPU, memory, bandwidth, battery, temperature, latency, resolution, UI layout, navigation, and content validation to ensure a stable and user‑friendly streaming experience.

UI testingcompatibility testinglive streaming
0 likes · 8 min read
Live Streaming Compatibility, Performance, and UI Testing Guidelines
Aotu Lab
Aotu Lab
Jul 28, 2017 · Frontend Development

Why WebGL Outperforms Canvas 2D in HTML5 Game Rendering

The article compares Flash and HTML5, explains Canvas 2D and WebGL rendering modes, and presents performance tests showing WebGL’s superior speed across browsers, while also discussing practical implications for web game development.

Canvas2DGame DevelopmentHTML5
0 likes · 12 min read
Why WebGL Outperforms Canvas 2D in HTML5 Game Rendering
Ctrip Technology
Ctrip Technology
Jul 20, 2017 · Information Security

Step‑by‑Step Guide to Deploying Search Guard Security Plugin for Elasticsearch 5.x

This article explains the background, installation, certificate generation, Elasticsearch and Kibana configuration, role mapping, performance testing, and final recommendations for securing an Elasticsearch 5.1.1 cluster with the open‑source Search Guard plugin, focusing on index‑level access control and RPC traffic encryption.

ElasticsearchSearch Guardaccess control
0 likes · 10 min read
Step‑by‑Step Guide to Deploying Search Guard Security Plugin for Elasticsearch 5.x
360 Quality & Efficiency
360 Quality & Efficiency
Jul 20, 2017 · Operations

Generating JMeter Test Reports via Command Line and Plugins

This guide explains how to use JMeter's command‑line mode and the JMeter Plugins CMD tool to convert JTL files into HTML reports and various chart types, detailing required parameters, plugin installation, and example commands for comprehensive performance‑testing reporting.

JMeterPluginscommand line
0 likes · 6 min read
Generating JMeter Test Reports via Command Line and Plugins
Qunar Tech Salon
Qunar Tech Salon
Jul 19, 2017 · Frontend Development

Headless Chrome Automation: API Overview, Coding Tips, and Example Scripts

This article introduces the Chrome DevTools Protocol API, provides practical coding tips for using the chrome-remote-interface library, and demonstrates complete Node.js examples for gathering performance metrics, automating Baidu searches, and extracting first‑page results with headless Chrome.

Chrome DevTools ProtocolHeadless ChromeJavaScript
0 likes · 9 min read
Headless Chrome Automation: API Overview, Coding Tips, and Example Scripts
21CTO
21CTO
Jul 18, 2017 · Information Security

Why ECC Is Outpacing RSA: History, Algorithms, and Performance Benchmarks

This article traces the evolution of cryptography from ancient substitution ciphers to modern standards like DES, RSA, and ECC, explains symmetric and asymmetric encryption, compares ECC and RSA in security and efficiency, and presents cloud‑server performance tests showing ECC‑256’s superiority in speed and resource usage.

ECCInformation SecurityRSA
0 likes · 9 min read
Why ECC Is Outpacing RSA: History, Algorithms, and Performance Benchmarks
360 Quality & Efficiency
360 Quality & Efficiency
Jul 5, 2017 · Operations

Understanding JMeter Distributed Modes and Optimization Strategies

This article explains how JMeter implements its various distributed testing modes, examines the SampleSender interface and its overloads for standard, batch, and asynchronous modes, and presents optimization techniques that reduce network overhead and improve overall load‑testing performance.

Distributed TestingJMeterOperations
0 likes · 3 min read
Understanding JMeter Distributed Modes and Optimization Strategies
Meituan Technology Team
Meituan Technology Team
Jun 23, 2017 · Backend Development

Fault Drill: Traffic Replication and Fault Injection Platform for Hotel Backend

The Fault‑Drill platform for hotel back‑end services combines real‑time traffic replication to shadow clusters with UI‑driven fault injection via a java‑agent, enabling developers to validate incident‑response plans, measure latency impacts, and reduce MTTR by testing normal and abnormal conditions on live traffic.

Backend EngineeringDistributed SystemsFault Injection
0 likes · 13 min read
Fault Drill: Traffic Replication and Fault Injection Platform for Hotel Backend
Baidu Intelligent Testing
Baidu Intelligent Testing
Jun 13, 2017 · Mobile Development

2017 Direct Banking App Evaluation Report and Scoring Criteria

The 2017 Direct Banking App Evaluation, conducted by Sina Finance and Baidu MTC, objectively assesses 60 Chinese banks' mobile banking applications across technical performance, user experience, functionality, security, and growth dimensions using a detailed 58‑item scoring rubric.

direct bankingmobile app evaluationperformance testing
0 likes · 8 min read
2017 Direct Banking App Evaluation Report and Scoring Criteria
Ctrip Technology
Ctrip Technology
May 18, 2017 · Backend Development

Design and Implementation of Ctrip's Real-Time User Data Collection System

This article details the design, technology selection, architecture, encryption, compression, and performance evaluation of Ctrip's real-time user data collection system, which leverages Java, Netty, Kafka, and Avro to achieve high throughput, low latency, and robust fault tolerance for mobile and web applications.

Backend DevelopmentNettydata collection
0 likes · 17 min read
Design and Implementation of Ctrip's Real-Time User Data Collection System
High Availability Architecture
High Availability Architecture
May 12, 2017 · Backend Development

Performance Challenge Championship (PCC) – High‑Concurrency Like Service Competition Overview and Solutions

The PCC (Performance Challenge Championship) was a one‑day offline competition where engineers built a high‑throughput “like” service, explored architectures such as OpenResty‑Lua, micro‑services with Go, caching strategies, and used Tsung for stress testing, with winners showcased and code released on GitHub.

CachingLike Systemhigh concurrency
0 likes · 11 min read
Performance Challenge Championship (PCC) – High‑Concurrency Like Service Competition Overview and Solutions
Qunar Tech Salon
Qunar Tech Salon
May 11, 2017 · Operations

Designing Performance Test Scenarios: Models, Metrics, and Strategies

This article explains how to design performance testing scenarios, covering test models, metrics, script preparation, concurrency calculations, pressure strategies, run times, delay settings, user termination, monitoring methods, and various typical scenario types such as baseline, load, mixed, capacity, large‑concurrency, stability and scalability tests.

ConcurrencyTPSload-testing
0 likes · 24 min read
Designing Performance Test Scenarios: Models, Metrics, and Strategies
21CTO
21CTO
Apr 11, 2017 · Backend Development

Simulating 10 Billion Red‑Packet Requests on One Server: Achieving 60k QPS with Go

This article details how to design, implement, and benchmark a single‑machine backend capable of handling up to 1 million concurrent connections and 60 000 queries per second while simulating the shake‑and‑send red‑packet workflow of a large‑scale messaging app, including capacity calculations, architecture choices, Go‑based implementation, and multi‑stage performance testing.

Distributed SystemsGolangQPS
0 likes · 18 min read
Simulating 10 Billion Red‑Packet Requests on One Server: Achieving 60k QPS with Go
Architecture Digest
Architecture Digest
Apr 11, 2017 · Backend Development

Design and Practice of a High‑Throughput Spring Festival Red‑Packet System Supporting One Million Connections

This article describes how to design, implement, and evaluate a backend system that simulates the Spring Festival red‑packet service, achieving up to 6 × 10⁴ QPS on a single server while handling one million concurrent connections, and discusses the hardware, software, architecture, and performance results.

Distributed SystemsGolangHigh Throughput
0 likes · 18 min read
Design and Practice of a High‑Throughput Spring Festival Red‑Packet System Supporting One Million Connections
Alibaba Cloud Developer
Alibaba Cloud Developer
Mar 29, 2017 · Operations

How Alibaba Built the ‘Nuclear Weapon’ Full‑Link Stress Test for Double 11

This article chronicles Alibaba's evolution of the full‑link pressure testing platform—from its 2013 inception tackling massive Double 11 traffic, through data construction, isolation, traffic generation, and platform upgrades—to a mature, automated, cloud‑native solution that safeguards large‑scale e‑commerce stability.

AlibabaOperationscapacity planning
0 likes · 13 min read
How Alibaba Built the ‘Nuclear Weapon’ Full‑Link Stress Test for Double 11
Continuous Delivery 2.0
Continuous Delivery 2.0
Mar 15, 2017 · R&D Management

Improving Continuous Integration: Reducing Build Times, Enabling Automated Testing, and Managing Estimations

The article discusses practical solutions for long C++ build times, introduces a company‑wide compile cluster with a localbuild.sh script, outlines how developers can run automated tests, defines testing strategies, sets criteria for feature readiness, and presents approaches to performance testing and estimation adjustments within a CI‑driven development workflow.

Build OptimizationCautomated testing
0 likes · 9 min read
Improving Continuous Integration: Reducing Build Times, Enabling Automated Testing, and Managing Estimations
21CTO
21CTO
Feb 24, 2017 · Backend Development

Unveiling Nginx Load Balancing: Deep Dive into Strategies and Real‑World Tests

This article explores Nginx’s built‑in and extended load‑balancing algorithms—including weighted round‑robin, IP‑hash, fair, generic‑hash and consistent‑hash—by dissecting source code, explaining implementation details, and presenting comprehensive performance tests that compare their balance, consistency, and fault‑tolerance across varied scenarios.

Backend Developmentalgorithmload balancing
0 likes · 14 min read
Unveiling Nginx Load Balancing: Deep Dive into Strategies and Real‑World Tests
Ctrip Technology
Ctrip Technology
Feb 16, 2017 · Operations

Application‑Based Automated Capacity Management and Utilization Evaluation

The article presents a comprehensive, application‑centric approach to automated capacity management that analyzes why server utilization is low, defines safe usage thresholds, describes a load‑balancer‑driven stress‑testing workflow with regression modeling, and explains how this practice improves resource efficiency, cost savings, and developer‑ops collaboration.

DevOpsOperationsautomation
0 likes · 14 min read
Application‑Based Automated Capacity Management and Utilization Evaluation
Qunar Tech Salon
Qunar Tech Salon
Feb 14, 2017 · Operations

Application‑Based Automated Capacity Management and Utilization Evaluation

This article explains how to automate application‑centric capacity assessment, identify the safe utilization thresholds, use load‑balancer‑driven stress testing and regression modeling to pinpoint resource bottlenecks, and improve server usage while maintaining service reliability through close DevOps collaboration.

DevOpsOperationsautomation
0 likes · 15 min read
Application‑Based Automated Capacity Management and Utilization Evaluation
Tencent Cloud Developer
Tencent Cloud Developer
Feb 13, 2017 · Databases

Practical Experience Migrating Over 130 MySQL Instances to Tencent Cloud CDB

Tencent Cloud’s migration team successfully moved over 130 on‑premise MySQL instances totaling 20 TB to CDB by rigorously testing the migration tool, configuring master‑slave replication, handling high‑concurrency binlog sync, and resolving timestamp, stored‑procedure, and DDL issues, ensuring seamless production deployment.

CDBMySQLTencent Cloud
0 likes · 12 min read
Practical Experience Migrating Over 130 MySQL Instances to Tencent Cloud CDB
Efficient Ops
Efficient Ops
Feb 9, 2017 · Operations

Automating Application‑Based Capacity Management to Boost Resource Utilization

This article explains how to automate capacity management focused on application performance, identifies common causes of low resource utilization, proposes safe utilization thresholds, describes a testing framework that uses load‑balancer weighting and real‑time monitoring to pinpoint bottlenecks, and outlines how ops and developers can collaborate to improve efficiency.

Operationsautomationcapacity management
0 likes · 18 min read
Automating Application‑Based Capacity Management to Boost Resource Utilization
ITPUB
ITPUB
Jan 25, 2017 · Fundamentals

Boost Search Speed in C++ Arrays and Strings with the Sentinel Technique

This article demonstrates how to replace the classic linear search loops for arrays and strings with a sentinel‑based approach, reducing boundary checks and improving performance, especially on large datasets, and includes a concrete performance test.

Algorithm OptimizationC++linear search
0 likes · 5 min read
Boost Search Speed in C++ Arrays and Strings with the Sentinel Technique
ITFLY8 Architecture Home
ITFLY8 Architecture Home
Jan 1, 2017 · Operations

How to Accurately Estimate Server, Storage, and Performance Resources for Enterprise Systems

This guide defines key IT terminology and presents a comprehensive methodology for estimating hardware platforms, storage devices, database and application servers, load‑balancing, and resource allocation using performance benchmarks such as TPC‑C, SPECweb2005, and SPECjbb2005, while outlining basic architectural principles and best‑practice deployment patterns.

IT infrastructureperformance testingresource estimation
0 likes · 34 min read
How to Accurately Estimate Server, Storage, and Performance Resources for Enterprise Systems
Qunar Tech Salon
Qunar Tech Salon
Dec 28, 2016 · Mobile Development

Comprehensive Guide to Mobile App Performance Testing and the ETest Tool

This article outlines mobile performance testing methods—including startup time, page response time, basic metrics, Monkey testing, and image‑recognition techniques—reviews third‑party tools, and introduces the in‑house ETest solution with its features and future development plans.

AndroidETestMetrics
0 likes · 9 min read
Comprehensive Guide to Mobile App Performance Testing and the ETest Tool
ITFLY8 Architecture Home
ITFLY8 Architecture Home
Nov 16, 2016 · Operations

Calculate System Throughput: QPS, TPS, Concurrency & Response Time

This article explains key performance testing concepts such as system throughput, QPS/TPS, concurrency, response time, and their interrelationships, provides practical calculation examples, shows how daily PV relates to TPS for different platforms, and outlines essential metrics and formulas for evaluating software performance.

ConcurrencyQPSResponse Time
0 likes · 11 min read
Calculate System Throughput: QPS, TPS, Concurrency & Response Time
dbaplus Community
dbaplus Community
Nov 7, 2016 · Databases

Master‑Slave MySQL Replication: Multi‑Source and Parallel Techniques Explained

This article explains MySQL replication fundamentals, explores multi‑source master‑slave architectures, details step‑by‑step configuration for both basic 1‑master‑1‑slave and multi‑source setups, introduces parallel replication to boost performance, and presents Sysbench‑based testing results that demonstrate the efficiency gains.

Database ArchitectureMySQLmulti-source
0 likes · 13 min read
Master‑Slave MySQL Replication: Multi‑Source and Parallel Techniques Explained
Meituan Technology Team
Meituan Technology Team
Oct 1, 2016 · Operations

How Meituan Scaled Its Mobile Deal System for Mega‑Promotions: Traffic Modeling & Capacity Planning

This article details Meituan's technical approach to handling massive traffic spikes during large‑scale promotions, covering background of the O2O deal platform, traffic‑model construction, capacity‑budget calculations, micro‑service architecture evolution, pressure‑test strategies, and the PTP performance‑testing environment used to validate system limits.

Operationscapacity planningload-testing
0 likes · 18 min read
How Meituan Scaled Its Mobile Deal System for Mega‑Promotions: Traffic Modeling & Capacity Planning
dbaplus Community
dbaplus Community
Sep 20, 2016 · Databases

Upgrading SQL Server 2008 R2 to 2014 with AlwaysOn: A Hands‑On High‑Availability Guide

This article walks through a real‑world upgrade from SQL Server 2008 R2 to 2014, detailing background analysis, data collection, solution design, detailed investigation, testing, performance baselines, side‑by‑side migration, cluster setup, application changes, and common pitfalls such as CDC issues, index‑rebuild logging, and query slowdowns.

AlwaysOnSQL ServerUpgrade
0 likes · 13 min read
Upgrading SQL Server 2008 R2 to 2014 with AlwaysOn: A Hands‑On High‑Availability Guide
360 Quality & Efficiency
360 Quality & Efficiency
Sep 18, 2016 · Mobile Development

Performance Testing Metrics and Sampling Strategy for Android Apps

The article outlines a comprehensive set of Android app performance metrics, device coverage, a non‑root sampling strategy using dumpsys commands, shell‑based data collection, and Python‑driven HTML reporting, providing practical guidance and reference implementations for mobile developers.

AndroidSamplingperformance testing
0 likes · 4 min read
Performance Testing Metrics and Sampling Strategy for Android Apps
360 Quality & Efficiency
360 Quality & Efficiency
Sep 14, 2016 · Mobile Development

Android FPS Measurement and Optimization: Methods, Tools, and Best Practices

This article explains how to quantify Android app frame rates, understand FPS concepts, calculate frame timing, and apply three practical methods—including GPU rendering profiling, adb gfxinfo, and SurfaceFlinger latency commands—to monitor and improve smoothness across multiple devices without rooting or API restrictions.

AndroidGPUMobile Development
0 likes · 9 min read
Android FPS Measurement and Optimization: Methods, Tools, and Best Practices
dbaplus Community
dbaplus Community
Sep 6, 2016 · Databases

Migrating 130 MySQL Instances to Tencent Cloud CDB: Key Lessons and Tips

An experienced Tencent Cloud engineer shares a detailed case study of moving over 130 MySQL instances (20 TB) from on‑premise IDC to CDB for MySQL, covering test cases, migration tool mechanics, multi‑instance concurrency, binlog handling, encountered issues, and practical solutions that ensured a smooth, high‑availability transition.

CDBMaster‑SlaveMySQL
0 likes · 10 min read
Migrating 130 MySQL Instances to Tencent Cloud CDB: Key Lessons and Tips
Art of Distributed System Architecture Design
Art of Distributed System Architecture Design
Aug 19, 2016 · Operations

Five Popular Web Performance Testing Tools

With increasing emphasis on user experience, this article introduces five widely used web performance testing tools—HP LoadRunner, Apache JMeter, Load UI, Httperf, and Siege—detailing their capabilities for load simulation, functional testing, and performance analysis to help developers and testers optimize application reliability and speed.

Apache JMeterHP LoadRunnerWeb Tools
0 likes · 4 min read
Five Popular Web Performance Testing Tools
ITPUB
ITPUB
May 10, 2016 · Databases

Can MySQL Semi‑Sync Replication Keep Up? A Sysbench Performance Test

A performance test using sysbench on a dual‑node DL380 G7 MySQL 5.6 cluster shows that semi‑synchronous replication delivers roughly one‑third the TPS of asynchronous replication and highlights recovery and replication‑lag limitations that can be mitigated with sharding and parallel workers.

MySQLSemi-sync replicationSysbench
0 likes · 6 min read
Can MySQL Semi‑Sync Replication Keep Up? A Sysbench Performance Test
Meituan Technology Team
Meituan Technology Team
Apr 29, 2016 · Industry Insights

How Meituan‑Dianping’s O2O Quality System Boosts Testing Efficiency with Custom Tools

The sixth Meituan‑Dianping technical salon explored building an O2O quality system by showcasing internal testing solutions—including full‑link online pressure testing, the Spider mobile compatibility tool, Didi’s mock decoupling framework, and the Conan performance‑data platform—detailing their methods, architectures, and impact on testing efficiency.

O2O testingQuality Engineeringmobile testing
0 likes · 6 min read
How Meituan‑Dianping’s O2O Quality System Boosts Testing Efficiency with Custom Tools
360 Quality & Efficiency
360 Quality & Efficiency
Apr 29, 2016 · Mobile Development

Function-Level Performance Testing for Android Apps Using Hook Techniques

This article explains how to perform function-level performance testing on Android applications by leveraging Hook frameworks to monitor each method’s execution time and call count, detailing function selection, class categorization, monitoring levels, data collection, result analysis, and practical implementation considerations.

AndroidFunction MonitoringHook
0 likes · 10 min read
Function-Level Performance Testing for Android Apps Using Hook Techniques
21CTO
21CTO
Apr 23, 2016 · Backend Development

Nginx Load Balancing: Weighted Round Robin, IP Hash, Fair & Consistent Hash

This article examines nginx’s built‑in and extended load‑balancing algorithms—including weighted round‑robin, IP hash, fair, generic hash and consistent hash—by dissecting source code, describing implementation details, and presenting comparative performance tests that evaluate balance, consistency and fault‑tolerance across various scenarios.

IP HashWeighted Round Robinload balancing
0 likes · 13 min read
Nginx Load Balancing: Weighted Round Robin, IP Hash, Fair & Consistent Hash
21CTO
21CTO
Mar 20, 2016 · Databases

Boost MySQL Insert Speed: Batch Inserts, Transactions, and Ordered Data

This article explains how to dramatically improve MySQL insert performance by batching multiple rows in a single statement, wrapping inserts in transactions, and inserting records in primary‑key order, backed by detailed test results and practical configuration tips.

Batch InsertInsert OptimizationMySQL
0 likes · 6 min read
Boost MySQL Insert Speed: Batch Inserts, Transactions, and Ordered Data
Meituan Technology Team
Meituan Technology Team
Mar 18, 2016 · Cloud Computing

Design and Performance Evaluation of the Ursa Distributed Block Storage System

Ursa, a master‑based distributed block storage system created by Meituan Cloud, overcomes Ceph, Sheepdog, and MooseFS limitations by delivering SSD‑level IOPS and near‑theoretical 10 GbE bandwidth with low CPU usage, supporting large virtual disks, snapshots, high availability, and efficient replica‑striped writes.

CephUrsacloud block storage
0 likes · 21 min read
Design and Performance Evaluation of the Ursa Distributed Block Storage System
Baidu Intelligent Testing
Baidu Intelligent Testing
Mar 17, 2016 · Fundamentals

How to Establish a Basic Quality Evaluation Model for Product Competitiveness

This article introduces the concept of basic quality within a product competitiveness model, outlines key evaluation dimensions such as functionality, performance, compatibility, and security, and provides step-by-step guidance on defining metrics, selecting testing methods, and quantifying results, especially for mobile applications.

compatibilityperformance testingquality assessment
0 likes · 5 min read
How to Establish a Basic Quality Evaluation Model for Product Competitiveness
21CTO
21CTO
Jan 9, 2016 · Operations

Step‑by‑Step Guide to Configuring an LVS Load Balancer with Direct Routing

This tutorial walks you through installing LVS on a Red Hat server, configuring the router, setting up virtual and real servers, adjusting ARP tables, and validating the cluster with ipvsadm, curl, and Tsung performance testing, all while ensuring high‑throughput static web delivery.

ClusterDirect RoutingLVS
0 likes · 11 min read
Step‑by‑Step Guide to Configuring an LVS Load Balancer with Direct Routing