Hello, friends! I’m Hui Mei 😊. Today, we’re going to discuss rvalue references and move semantics in C++. These are important features introduced in C++11, specifically designed to enhance program performance, especially when your code requires a lot of object copying. These two techniques become particularly crucial! You might be wondering: “Rvalue references? Sounds complicated… … Read more
C++ Network Programming: Practical Performance Evaluation and Optimization 1. Introduction In today’s wave of digitalization, network programming serves as a bridge connecting various corners of the virtual world, allowing information to flow rapidly. Among the many effective tools for network programming, C++ stands out as a “sharp weapon” for developers pursuing extreme efficiency due to … Read more
To speed up operations and reduce disk I/O, the kernel typically caches as much memory as possible, which is known as Cache Memory. By design, pages containing cached data can be repurposed as needed (for example, by applications). Cache memory is not automatically released after a program finishes running. This can lead to a situation … Read more
When your server’s CPU reaches 100%, how do you troubleshoot the abnormal fault? At the end of this article, a shell script will be shared to help you troubleshoot the Linux system CPU 100% anomaly. Yesterday afternoon, I suddenly received an operations email alert, indicating that the data platform server’s CPU utilization had reached 98.94%, … Read more
When using Jetson modules and other embedded systems, it is essential to optimize applications based on power distribution and computational resources. Monitoring becomes particularly important to avoid performance and thermal throttling issues. Jetson modules come with built-in GPU, CPU, and various AI accelerators, along with highly efficient Power Management Integrated Circuits (PMIC), voltage regulators, and … Read more
1. Introduction In computer operating systems, disk I/O (Input/Output) is a key link in data read and write operations. For Linux systems, optimizing disk I/O performance is directly related to the overall response speed and data processing capability of the system. This article will detail the read and write process of Linux disk I/O, including … Read more
C Language and Embedded System Performance Optimization: Improving System Response Speed In embedded system development, performance optimization is a crucial topic. Since embedded devices usually have limited resources, optimizing code to improve system response speed is particularly important. This article will introduce some common performance optimization techniques and illustrate them with C language code examples. … Read more
The startup speed of embedded systems varies based on the device’s performance and the quality of the code. However, from a consumer’s perspective, the faster the system starts, the better. Therefore, optimizing the performance of embedded systems to speed up device startup time is a crucial task in the later stages of a project. It … Read more
Every Monday or Tuesday, we will send out a technical collection. This week marks the first issue, and we will no longer divide it by date. Let’s see how long we can keep this up. The articles are selected from those shared weekly by everyone on WanAndroid. WeChat restricts external link clicks, you can click … Read more