Click the blue 'Arm Selected' at the top left and select 'Set as Star'. The Performance Monitoring Unit (PMU) in the Armv8-A CPU provides hardware-level performance monitoring and analysis capabilities. The PMU collects hardware event counts through counters. The counters include cycle counters and event counters. You can configure: 5 event counters to count specified … Read more
Advanced Linux Operations: In-Depth Analysis from Basic Commands to System Optimization Introduction: Have You Encountered These Crashing Moments? At 2 AM, you are abruptly awakened by a phone call: “Online service response timeout, widespread user complaints!” You hurriedly open your computer, SSH into the server, and face a screen full of processes and logs, your … Read more
Click the “Yudao Source Code” above and select “Set as Favorite” What does it matter if it’s the old or the new wave? The wave that can surf is the good wave! Every day at 10:33 we update articles, losing a bit of hair every day… Quality Source Code Column Original | The Super God … Read more
The emergence of torque sensors as a Balance of Performance (BoP) tool seems to be a direct solution to curb engine development upgrades. At first glance, precise sensor monitoring of the preset power curve and maximum power limits should achieve this goal. After all, testing the engine on a dynamometer before the season and producing … Read more
A server running on a Linux operating system exhibits various parameter information, which can often help quickly locate and track issues. Here are just a few simple tools to view system-related parameters. Many tools work by analyzing data from /proc and /sys, while more detailed and professional performance monitoring and tuning may require more specialized … 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
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