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: …
Introduction:When I first started working, a leader from another department often forgot the root password for his Linux testing environment and would ask me for help to bypass it. I could easily enter single user mode, reset the password, and reboot in about a minute. After leaving that company, I hardly used single user mode … Read more
☞ The course by Liang Xu has completely exploded! ☜ Service management in Linux that every sysadmin must know! Introduction In <span>Linux</span>, whenever you install any package with services and daemons, the system will by default add the initialization and <span>systemd</span> scripts for these services, but they are not enabled at this point. We need … Read more
Dear friends following HPMicro, the <span>Zephyr v3.7.0 (LTS)</span> version and <span>hpm_sdk v1.6.0</span> version of <span>Zephyr SDK Glue v0.5.0</span> has been officially released. The repository link is: https://github.com/hpmicro/zephyr_sdk_glue Zephyr Development Package for HPMicro MCU Zephyr is a general-purpose embedded real-time operating system with good scalability.Zephyr SDK Glue (abbreviated as ZSG) is an open-source software package developed … Read more
Struggling with Desktop Computer Cost-Performance? Here Are 10 Popular Models for 2025! Choosing the wrong desktop computer = insufficient performance, poor heat dissipation, and limited expandability! With the prevalence of “pseudo-high configurations” and “false cost-performance” models on the market, how can you select a powerful, well-balanced, and worry-free treasure model? This article combines core technologies, … Read more
Click the above PC Enthusiasts to follow us For PCs, the processor is the most critical hardware that determines performance. So, what are the differences between laptop and desktop processors, and why do desktop processors always lead in performance? Additionally, what are the most common processors in the laptop field today? How do they compare … Read more
Introduction Why is the top so pointy? Just kidding! Today! I will guide you step by step to create a super cool Bluetooth speaker! 01It has 4 major highlights!” ① Simple to make! Simple circuit design! Easy to solder! Most components use through-hole packages. No coding required, just burn the firmware! Pure hardware design! ② … Read more
Word Count: Approximately 3031 words Reading Time: Approximately 6 minutes When purchasing Bluetooth headphones, we are often surrounded by various technical terms: SBC, AAC, aptX, LDAC, LHDC, Hi-Res… What do these encoding technologies mean? How do they affect our listening experience? This article will delve into these audio encoding technologies to help you make informed … Read more
In this era of music on the go, Bluetooth speakers have become our close companions in life. Whether for outdoor adventures or home relaxation, a quality Bluetooth speaker can bring endless joy. However, with so many choices on the market, how do you select the one that suits you best? Here are the two most … Read more
In the previous article, we introduced how wireless communication technology works, how it has developed, and what common application scenarios exist. Click the image to view the article. Of course, knowing what wireless communication is not enough; we also need to understand how wireless communication is implemented! In this article, we will explore the current … Read more