What aspects should be considered for server security defense? How to open server ports? The five key steps involved in opening server ports. How to format and mount a data disk on a Linux server? A historic moment! Intel and AMD announce collaboration: jointly defending the x86 ecosystem. Detailed explanation of Xeon CPUs – rankings. … Read more
In the practical introduction to Linux, the twelfth essential knowledge point is system performance monitoring and tuning, which is a core capability to ensure system stability and efficient operation. Here are the key points: 1. Core Monitoring Tools Real-time Resource Monitoring (<span>top</span>/<span>htop</span>) <span>top</span>: Dynamically displays processes sorted by CPU and memory usage (default refresh every … Read more
Source:https://juejin.cn/post/7114540497187635208Table of Contents Introduction Usage Scenarios Installation Common Commands Others Introduction Arthas is an open-source Java diagnostic tool from Alibaba that dynamically tracks Java code and monitors JVM status in real-time. It allows for easy troubleshooting of JVM-related issues without interrupting program execution. It supports JDK 6+, and is compatible with Linux, Mac, and Windows. … Read more
Introduction: In the article “Tuning Linux System Level and Common Interview Questions,” the author provides a detailed introduction to common tuning methods for Linux systems and frequently asked interview questions. This article will introduce commonly used Linux commands for performance monitoring. 1. uptime $ uptime 23:51:26 up 21:31, 1 user, load average: …
Disk I/O performance is a core aspect of optimizing Linux system performance, especially in high-load scenarios such as database servers, virtualization environments, or big data processing platforms. Disk I/O bottlenecks can lead to slow system responses or even service interruptions. Monitoring and debugging disk I/O performance not only helps administrators quickly locate issues but also … Read more
Introduction: The Complex Nature of Packet Loss Issues Network packet loss on Linux servers is one of the tricky problems that operations engineers often encounter. It may manifest as slow application responses, intermittent service interruptions, or degraded user experiences. Unlike systems like Windows, Linux, with its robust network stack and rich diagnostic tools, can achieve … Read more
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
What aspects should be considered for server security defense? How to open server ports? The five key steps involved in opening server ports How to format and mount a data disk on a Linux server A historic moment! Intel and AMD announce collaboration: jointly defending the x86 ecosystem Detailed explanation of Xeon CPUs – rankings … Read more
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
Introduction Mastering system monitoring commands is a fundamental skill for Linux operation and maintenance. This note aims to organize and summarize commonly used monitoring commands along with their core functions and practical scenarios, facilitating quick review and learning to enhance system management and troubleshooting efficiency. 1. Comprehensive Performance Monitoring (CPU, Memory, Load) 1.<span>top</span> •Core Function: … Read more