Click the “blue text” above to follow us Have you ever had this experience? You wrote a program to process a large amount of data, went to make a cup of coffee, and came back to find the program still “buzzing” away. Anxiously waiting, you finally conclude: the performance is lacking! Especially when dealing with … Read more
Hello everyone, I am the Information Guy~ In the pursuit of extreme performance in server development, how to reduce the number of data copies and lower CPU usage is an eternal topic. Today, I will introduce the combination of <span><span>mmap</span></span> and <span><span>socket</span></span>, which is a powerful tool to address this pain point, and has been … Read more
Click on the above“Embedded Linux Charging Station”, select“Pin/Star the Official Account” Welfare and valuable information delivered promptly First Interview 1. Self-introduction 2. What kind of locks are used in interrupts? 3. What is the difference between spin locks and mutex locks? 4. If the interrupt function is threaded, what kind of locks should be used? … Read more
In modern embedded system development, code relocation technology is becoming a key means to optimize system performance. Imagine a scenario where your real-time control system experiences a 30% delay in critical interrupt response due to Flash access latency, or is unable to add new functional modules due to Flash capacity limitations. These are the pain … Read more
1. Introduction Recently, various products in our department have encountered issues caused by memory leaks, specifically manifested as board resets after continuous operation for several days due to memory exhaustion. On one hand, memory leak issues are considered low-level errors, and their oversight in production can have severe consequences; on the other hand, since memory … Read more
Click the blue text to follow! Java Vectorization Programming: Accelerating Image Processing Algorithms with SIMD Instructions Hello, programmers! Feng is back! Today, let’s talk about something exciting—Java vectorization programming. Don’t be intimidated by this fancy name; it’s simply a black technology that makes your Java code fly! Especially when processing images, the acceleration effect is … Read more
SIMD has played an increasingly important role in processors in recent years, providing significant performance improvements for multimedia applications, and most computations within GPGPU warps are also performed in a SIMD-like manner. Understanding SIMD is crucial for a comprehensive understanding of architecture. This book provides a comprehensive and detailed introduction to the design concepts and … Read more
Click below to follow, the article comes from 🙋♂️ Friends who want to join the community can see the method at the end of the article for group communication. “ Despite the theoretical appeal of multi-agent systems, their performance in practical applications often falls short of expectations. According to research, even advanced open-source multi-agent systems … Read more
Recently, the “thick chip” featured in the teardown video of Huawei’s foldable flagship Pura X has sparked heated discussions. Although Apple’s M-series processors have long adopted similar packaging technologies, Huawei’s move has ignited a wave of industry discussions. This phenomenon reflects a silent “packaging revolution” in the smartphone chip sector—manufacturers are no longer just competing … Read more
With the rapid development of science, information technology plays a crucial role in human life, providing a lot of convenience for daily life. Sensors, as important tools for obtaining information, have made significant contributions to the miniaturization, wirelessness, digitization, networking, and intelligence of information systems. As the development momentum of Wireless Sensor Networks (WSN) accelerates … Read more