Understanding PLC Programs: 5 Essential Steps

[Image][Image]Based on feedback and misunderstandings from previous students, I have summarized the following analysis methods. Overall, regardless of the PLC system in use, the methods and steps for analysis are the same, although there are some differences in the internal structure. I hope everyone can grasp the meaning from this article. 1. System AnalysisBased on … Read more

The 24 Most Common Performance Tools for Linux Developers (In-Depth Guide)

🌟 The 24 Most Common Performance Tools for Linux Developers (In-Depth Guide) —— Mastering everything from system bottlenecks to DPDK tuning in one article In the world of Linux, performance analysis is a “core skill” for developers, operations engineers, and architects. Whether you are tuning large-scale servers, optimizing network forwarding performance (such as DPDK), or … Read more

Ansible Firefighting Hotline Series (26) Automated OS Performance Analysis

đŸ’„ Ansible Firefighting Hotline | Is OS Performance Analysis Too Complicated? One-Click PCP Automated Inspection Turns You into a Performance Expert! Are you still struggling with system performance analysis? Manually running a bunch of commands like top, iostat, vmstat, free… leads to scattered information that is hard to integrate, and you might miss key metrics. … Read more

Comprehensive Guide to Diagnosing Linux I/O Performance Bottlenecks: A Systematic Solution from Theory to Practice

Comprehensive Guide to Diagnosing Linux I/O Performance Bottlenecks: A Systematic Solution from Theory to Practice

Introduction Detailed Explanation of General Methodologies for Diagnosing Linux System I/O Performance Issues Check Server Load View I/O Utilization Clearly Identify I/O Processes Supplement: Other Useful I/O Analysis Tools Conclusion References Introduction When you notice that certain I/O processes in the production environment are experiencing decreased read/write efficiency, for example: Increased query time in MySQL … Read more

Eight Commonly Used Linux Performance Monitoring Commands: How Many Have You Used?

Eight Commonly Used Linux Performance Monitoring Commands: How Many Have You Used?

Image source: Internet In Linux systems, there are many performance monitoring tools. Below, I will introduce several commonly used command-line tools. 1. top/htop top: Function: Real-time monitoring of processes, displaying information about CPU, memory, load, swap space, etc. Common Shortcuts: Shortcut Description M Sort by memory usage P Sort by CPU usage k Kill a … Read more

Eight Commonly Used Linux Performance Monitoring Commands: How Many Have You Used?

Eight Commonly Used Linux Performance Monitoring Commands: How Many Have You Used?

Image source: Internet In Linux systems, there are many performance monitoring tools. Below, I will introduce several commonly used command-line tools. 1. top/htop top: Function: Real-time monitoring of processes, displaying information about CPU, memory, load, swap space, etc. Common Shortcuts: Shortcut Description M Sort by memory usage P Sort by CPU usage k Kill a … Read more

Linux System Performance Optimization: Seven Practical Experiences

Linux System Performance Optimization: Seven Practical Experiences

Click the "Linux Tech Enthusiast" above and select "Set as Star" to receive high-quality articles promptly. ☞【Essentials】ChatGPT 4.0 is unlocked, no limit on questions!!! ☞【Essentials】Tsinghua University senior's self-study Linux notes, top-level quality! ☞【Essentials】Comprehensive guide to commonly used Linux commands, all in one article. ☞【Essentials】Collection! Linux basic to advanced learning roadmap. Link: https://mp.weixin.qq.com/s/Rey0gSnnj-zoAEwE6J-Gjw The performance of … Read more

How to Investigate a Linux System Breach?

How to Investigate a Linux System Breach?

When a company experiences a hacker intrusion; when the system crashes; when a security incident affects normal business operations, can you respond immediately and provide a solution? The following article will teach you the Linux emergency response process! Intrusion Investigation Approach 01 Apache Log Path Access Log: /var/log/apache2/access.log (Debian/Ubuntu) or /var/log/httpd/access_log (CentOS/RHEL) Nginx Log Path … Read more