Tag

performance-monitoring

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IT Xianyu
IT Xianyu
Jun 5, 2025 · Operations

Diagnose MySQL Slow Queries on AlmaLinux: One‑Click Shell Monitoring Scripts

Learn how to quickly pinpoint MySQL performance bottlenecks on AlmaLinux by using built‑in tools like top, iotop, ss, and netstat, and automate snapshot collection with a simple Bash script that records system and container metrics for later analysis.

AlmaLinuxDockerMySQL
0 likes · 20 min read
Diagnose MySQL Slow Queries on AlmaLinux: One‑Click Shell Monitoring Scripts
Practical DevOps Architecture
Practical DevOps Architecture
May 20, 2025 · Cloud Computing

Understanding and Monitoring CPU Steal Time in Virtual Machines

This article explains what CPU steal time is, how to view it with the GNU top command, why it occurs in virtualized environments, and provides practical guidelines for interpreting and addressing high steal‑time values to ensure stable cloud VM performance.

CPU Steal TimeCloud ComputingVirtualization
0 likes · 4 min read
Understanding and Monitoring CPU Steal Time in Virtual Machines
Deepin Linux
Deepin Linux
May 19, 2025 · Operations

Linux System Performance Bottleneck Analysis and Optimization Guide

This comprehensive guide explains how to monitor, diagnose, and resolve Linux server performance bottlenecks by covering essential command‑line tools, logging, automated scripts, and optimization techniques for CPU, memory, disk I/O, and network, with practical case studies and code examples.

linuxoptimizationperformance-monitoring
0 likes · 40 min read
Linux System Performance Bottleneck Analysis and Optimization Guide
Efficient Ops
Efficient Ops
May 18, 2025 · Operations

Mastering API Latency: What P90, P95, P99 and SLA Really Mean

This article explains key performance metrics such as API latency, SLA commitments, and percentile indicators P90, P95, and P99, illustrating how to calculate and interpret these values along with average and maximum latency to improve system reliability and user experience.

SLAapi latencyoperations
0 likes · 5 min read
Mastering API Latency: What P90, P95, P99 and SLA Really Mean
IT Services Circle
IT Services Circle
May 16, 2025 · Fundamentals

Understanding Page Faults and Their Impact on System Performance

The article explains what page faults are, how the Linux kernel handles them, methods to measure their frequency with tools like perf, vmstat and ftrace, and discusses why frequent faults degrade performance and how to mitigate them through memory, configuration, and code optimizations.

Virtual Memorylinuxmemory management
0 likes · 7 min read
Understanding Page Faults and Their Impact on System Performance
Efficient Ops
Efficient Ops
Apr 29, 2025 · Operations

Master Linux Performance: Essential Monitoring Tools & Commands

This guide compiles the most important Linux performance analysis utilities—such as vmstat, iostat, dstat, iotop, pidstat, top, htop, mpstat, netstat, ps, strace, uptime, lsof, and perf—explaining their usage, output fields, and how they fit into a comprehensive system observability workflow.

command line toolslinuxobservability
0 likes · 15 min read
Master Linux Performance: Essential Monitoring Tools & Commands
Raymond Ops
Raymond Ops
Apr 13, 2025 · Operations

Master Linux Resource Monitoring: How to Use /usr/bin/time Effectively

This guide explains how to use the Linux /usr/bin/time utility to measure program resource usage—including user and kernel CPU time, memory consumption, and I/O statistics—covers its syntax, common options, custom format strings, and the distinction between the external command and the shell built‑in.

linuxperformance-monitoringresource-usage
0 likes · 9 min read
Master Linux Resource Monitoring: How to Use /usr/bin/time Effectively
Test Development Learning Exchange
Test Development Learning Exchange
Mar 31, 2025 · Mobile Development

Setting Monitoring Metrics and Creating Test Report Templates for Android Monkey Testing

This guide explains how to monitor key system resources such as CPU, memory, battery, network traffic, and startup time during Android Monkey testing, provides ADB commands for data collection, and offers a structured test report template with practical steps for automation and analysis.

ADB commandsMobile DevelopmentMonkey Testing
0 likes · 5 min read
Setting Monitoring Metrics and Creating Test Report Templates for Android Monkey Testing
360 Zhihui Cloud Developer
360 Zhihui Cloud Developer
Mar 20, 2025 · Operations

Unlocking Application Reliability: Core APM Modules and Yunzhou’s OpenTelemetry Design

This article explains Application Performance Monitoring (APM), its key benefits such as business continuity, performance optimization, and cost reduction, outlines essential APM modules, and details Yunzhou Observation’s OpenTelemetry‑based design, data ingestion, processing, visualization, and future roadmap for observability.

APMOpenTelemetrycloud-native
0 likes · 10 min read
Unlocking Application Reliability: Core APM Modules and Yunzhou’s OpenTelemetry Design
Efficient Ops
Efficient Ops
Mar 2, 2025 · Operations

How to Diagnose Linux Server Performance Issues in the First 60 Seconds

This article walks you through the ten essential Linux command‑line tools—such as uptime, vmstat, iostat, and top—that Netflix’s performance engineers use to quickly assess system load, resource saturation, and errors within the critical first minute of troubleshooting.

Opscommand linelinux
0 likes · 18 min read
How to Diagnose Linux Server Performance Issues in the First 60 Seconds
Rare Earth Juejin Tech Community
Rare Earth Juejin Tech Community
Feb 16, 2025 · Frontend Development

Building a Frontend Performance Monitoring SDK: Theory, Metrics, and Implementation

This article explains the importance of frontend performance monitoring, outlines core metrics such as FCP, LCP, FP, CLS, and demonstrates how to implement a comprehensive SDK using PerformanceObserver, custom configuration, and wrappers for fetch and XMLHttpRequest to capture resource and network data for batch reporting.

JavaScriptPerformanceObserverSDK
0 likes · 16 min read
Building a Frontend Performance Monitoring SDK: Theory, Metrics, and Implementation
Test Development Learning Exchange
Test Development Learning Exchange
Jan 30, 2025 · Operations

Locust Event System Overview and Usage

The article explains Locust's event system, detailing common events such as init, test_start, test_stop, request_success, request_failure, quitting, worker_report, and hatch_complete, and provides Python code examples for attaching listeners to customize load‑testing behavior.

Event SystemLocustPython
0 likes · 4 min read
Locust Event System Overview and Usage
Rare Earth Juejin Tech Community
Rare Earth Juejin Tech Community
Jan 21, 2025 · Backend Development

Design and Implementation of a Lightweight TimeTracker Utility for Java

This article introduces a concise and elegant Java TimeTracker utility class that leverages AutoCloseable, try‑with‑resources, and functional interfaces to provide flexible performance monitoring, automatic duration calculation, and configurable exception handling while reducing repetitive timing code.

AutoCloseableException HandlingJava
0 likes · 14 min read
Design and Implementation of a Lightweight TimeTracker Utility for Java
Test Development Learning Exchange
Test Development Learning Exchange
Nov 12, 2024 · Fundamentals

Python Decorators: Concepts, Examples, and Practical Applications

This article provides a comprehensive guide to Python decorators, covering their basic concepts, practical examples including logging, multiple decorators, parameterized decorators, metadata preservation, class decoration, and performance monitoring applications.

FunctionsMetadata PreservationPython
0 likes · 5 min read
Python Decorators: Concepts, Examples, and Practical Applications
Spring Full-Stack Practical Cases
Spring Full-Stack Practical Cases
Nov 8, 2024 · Backend Development

Master Java Agent with Spring Boot 3: Real‑World API Latency Monitoring

This tutorial explains Java Agent technology, shows how to implement a custom agent using the Instrumentation API and Javassist, integrates it with a Spring Boot 3 application to log API execution time, and provides step‑by‑step packaging and execution instructions.

Bytecode ManipulationInstrumentationJava agent
0 likes · 10 min read
Master Java Agent with Spring Boot 3: Real‑World API Latency Monitoring
Test Development Learning Exchange
Test Development Learning Exchange
Oct 22, 2024 · Operations

Key Linux Server Performance Metrics, Monitoring Tools, and a Python Script for Automated Data Collection

When testing Linux server performance, you should monitor key metrics such as CPU usage, memory consumption, disk I/O, network bandwidth, process information, file system usage, system logs, boot and response times, context switches, and interrupts, using tools like top, vmstat, iostat, netstat, and custom Python scripts.

Pythonlinuxoperations
0 likes · 8 min read
Key Linux Server Performance Metrics, Monitoring Tools, and a Python Script for Automated Data Collection
Architect
Architect
Sep 13, 2024 · Operations

Introducing MyPerf4J: A High‑Performance Java Monitoring and Statistics Tool

The article presents MyPerf4J, a Java‑agent based, low‑overhead performance monitoring library that provides real‑time metrics such as method latency, QPS, memory usage, GC statistics, and class loading, along with quick‑start instructions, configuration details, and open‑source links for Java backend services.

JavaJavaAgentbackend
0 likes · 7 min read
Introducing MyPerf4J: A High‑Performance Java Monitoring and Statistics Tool
Bilibili Tech
Bilibili Tech
Sep 13, 2024 · Backend Development

Architectural Evolution of Bilibili Live Interaction Center

To solve duplicated functionality, legacy code, and scalability limits in Bilibili’s live‑streaming interaction services, the team created a unified Interaction Center that abstracts RTC, consolidates session, link, UI, scoring and role management, introduces a shared state machine and tracing, and evolves through phased, extensible architecture for higher performance and maintainability.

Live StreamingMicroservicesRTC
0 likes · 22 min read
Architectural Evolution of Bilibili Live Interaction Center
Airbnb Technology Team
Airbnb Technology Team
Sep 9, 2024 · Mobile Development

Implementing Page Performance Score on iOS: PPSStateMachine, Metrics, and Instrumentation

Airbnb’s iOS Page Performance Score implementation introduces a PPSStateMachine that ties a UIViewController’s lifecycle to metric collection—tracking first layout, initial load, scroll thread hangs, additional and rich content load times—using nanosecond timestamps, state‑machine protocols, and view‑responder discovery to emit standardized performance logs.

InstrumentationMobile DevelopmentPage Performance Score
0 likes · 9 min read
Implementing Page Performance Score on iOS: PPSStateMachine, Metrics, and Instrumentation