Linux C/C++: Processes and File Systems In the world of Unix-like operating systems, understanding processes and file handling is fundamental for every system programmer. Today, we will explore an interesting intersection of these two concepts: what happens to open file descriptors when a process forks? This topic may seem niche, but it significantly impacts how … Read more
In the field of server management, iptables and nginx forwarding are two very important concepts that have both similarities and significant differences in functionality and application scenarios. Today, we will delve into the differences between iptables and nginx forwarding and the respective application scenarios for each. 1. iptables Forwarding 1. Working Principle iptables is a … Read more
Click the blue text to follow us This article summarizes super practical Linux commands, absolutely packed with useful information. cd command 1. Syntax cd [target path] The target path can be an absolute path or a relative path. 2. Function Switch the current working directory to the specified directory. 3. Common Usage cd .. Switch … Read more
Installing Linux in a virtual machine is almost identical to installing it on a physical machine. Open the virtual machine. Click: Edit this virtual machine settings – Hardware – CD – Use ISO image file – Browse, find the previously downloaded Linux image file, and after setting it up, click “Start this virtual machine”. Wait … Read more
Adding SoC support for ZephyrRTOS (2) The basic framework for porting N32L406 is not yet complete, and recently I started the porting process for the Sifli SF32LB58. One reason is that this chip features Bluetooth and a 2D GPU, making it suitable for low-power display devices such as speedometers, navigation devices, and smart glasses, which … Read more
Source: ZHUAN ZHI This article is approximately 1000 words long and is recommended for a 5-minute read. This article presents SparseLoRA, a method to accelerate the fine-tuning of large language models through contextual sparsity. Fine-tuning large language models (LLMs) is often both computationally intensive and memory-consuming. While parameter-efficient fine-tuning methods such as QLoRA and DoRA … Read more
Foreword Embodied intelligence, as a hot topic in the current technology field, is reshaping our understanding of intelligent systems at an unprecedented speed. It emphasizes that intelligent agents interact with the environment in real-time through physical entities, achieving an integration of perception, cognition, decision-making, and action. In this system, sensors undoubtedly play a key role … Read more
Having an elderly person at home is like having a treasure. The Matchstick Sensor – a superhero for seniors, providing 24-hour protection. Instantly switches to “rescue mode” the moment a fall occurs. According to statistics, over 50 million elderly people in our country experience falls each year, with direct medical costs reaching 5 billion yuan. … Read more
â–³Advertisement Not related to the main text On June 30, Sichuan Zhiguan Weilan Technology Co., Ltd. (hereinafter referred to as “Zhiguan Weilan”) is debugging the first batch of nitrogen-oxygen sensors in its 11,000 square meter factory. It is understood that this production line, which has the capability to supply complete systems, has recently been completed … Read more
According to reports from the Smart Medical Devices Network, a research team at the California Institute of Technology has developed a revolutionary medical device called PillTrek. This is a micro smart capsule with a diameter of only 7 millimeters and a length of just 25 millimeters (while conventional capsule endoscopes typically measure between 10-12 millimeters … Read more