Comprehensive Analysis of Time Synchronization in Linux Systems

Click on the “Programmer Technical Expert” above, follow and select “Set as Star” Reply with “Join Group” to get qualification for group discussions! In a modern distributed system, “time accuracy” is the underlying cornerstone of all computations, yet it is often the most overlooked foundational capability. From log alignment, monitoring alerts, transaction consistency, to container … Read more

How the open Function in Linux Drivers Bridges Software and Hardware

Follow★Star the official account to get information first 1. Introduction Opening a file is one of the most basic operations in the Linux system. The <span>open</span> function can achieve the functionality of opening files. Below, I will introduce to you the detailed process of how the <span>open</span> function connects the upper layer to the lower … Read more

Redis Deployment Guide on Linux

System aarch64 1$ uname -a 2Linux yhy-87 5.10.0-153.12.0.92.oe2203sp2.aarch64 #1 SMP Wed Jun 28 23:18:48 CST 2023 aarch64 aarch64 aarch64 GNU/Linux 3$ cat /etc/os-release 4NAME="openEuler" 5VERSION="22.03 (LTS-SP2)" 6ID="openEuler" 7VERSION_ID="22.03" 8PRETTY_NAME="openEuler 22.03 (LTS-SP2)" 9ANSI_COLOR="0;31" x86_64 1$ uname -a 2Linux yhy-106 5.10.0-182.0.0.95.oe2203sp3.x86_64 #1 SMP Sat Dec 30 13:10:36 CST 2023 x86_64 x86_64 x86_64 GNU/Linux 3$ cat /etc/os-release 4NAME="openEuler" … Read more

Bouffalo Lab: Low-Power Wi-Fi 6/BT/Zigbee Fully Integrated RISC-V SoC Chips BL616/618

Introduction Bouffalo Lab is a chip design company focused on developing industry-leading technologies in ultra-low power consumption, multi-protocol interconnectivity, and high-performance audio and video edge computing, providing comprehensive AIoT solutions from edge to endpoint for smart homes. The company has successfully mass-produced two generations of AIoT Wi-Fi multi-protocol chips, which are widely used in smart … Read more

Practical Implementation of LoRA Fine-Tuning (1) – Training Instruction Models

In the previous article, we introduced the principles of LoRA fine-tuning. In this issue, we will get hands-on with supervised fine-tuning (SFT) of a basic pre-trained model, transforming it into an instruction model capable of interacting with users in a dialogue system. LoRA Fine-Tuning Principles JunJun AI, WeChat Official Account: JunJun AI. What exactly is … Read more

Transmission Speed and Distance of Wireless Wi-Fi

The transmission speed and distance of wireless Wi-Fi are quite remarkable. Currently, Wi-Fi is the most widely used wireless communication technology, with a transmission distance of 100 to 300 meters and a considerable speed. It is based on the IEEE 802.11 standard and has undergone several generations of development, with speeds continuously soaring. For instance, … Read more

USB 3.0 is Fast, Yet Causes Wi-Fi Disconnections and Device Failures! The Truth Behind the Reluctance to Phase Out USB 2.0

When USB 3.0 was launched in 2008, it promised speeds up to 10 times that of USB 2.0. While the theoretical data is indeed accurate, faster does not always mean better. The leap from 480Mbps to 5Gbps introduced new signaling mechanisms, new power rules, and new electrical characteristics, which were not issues that the original … Read more

EU Restrictions! Cancellation of iPhone Wi-Fi Sync History with Apple Watch

Hi everyone, I am a pioneer Apple fan. WeChat has modified its push mechanism, which may cause many fans to miss the articles on the same day. It is recommended that everyone add the official account of the manager to star mark to avoid missing out on every exciting push! Apple will cancel the Wi-Fi … Read more

Hotel Penalized for Not Setting Wi-Fi Password: A Must-Read for Weak Current Professionals on Network Security Red Lines!

In public wireless coverage projects, technical implementation is just the first step; compliance in operation is key. Recently, a hotel in the Huinong District of Shizuishan City, Ningxia, was legally penalized by the public security authorities for not setting a password for its wireless Wi-Fi and failing to establish any connection authentication procedures. The hotel … Read more

How Wi-Fi HaLow Shapes the Future of IoT and Smart Cities

As urban environments rapidly evolve into digital ecosystems, the integration of smart infrastructure and interconnected devices has become central to urban planning. Author: Michael De Nil, Co-founder and CEO of Morse Micro The core of the transition to a digital ecosystem is the Internet of Things (IoT), where connected sensors, smart meters, and embedded controllers … Read more