What aspects should be considered for server security defense? How to open server ports? The five key steps involved in opening server ports How to format and mount a data disk on a Linux server A historic moment! Intel and AMD announce collaboration: jointly defending the x86 ecosystem Detailed explanation of Xeon CPUs – rankings … Read more
Source | Embedded Miscellany Today, I will share some commonly applicable skills for advanced embedded software development. Embedded Performance Optimization Cheng Kefe in “Embedded System Design” points out that system-level optimization is key to enhancing the competitiveness of embedded software, which should be approached from three dimensions: code efficiency, resource utilization, and real-time performance. Embedded … Read more
When hearing about priority, those involved in performance optimization often consider whether it can be applied to our business. For example: <strong><span><span>ionice -c1 -n0</span></span></strong>, hoping it can improve application performance. But this may just be wishful thinking. Business Process: The process reads and writes data through read write, to the kernel, then to the VFS … Read more
Written by / Financial Technology Department of Everbright Bank Zhang Zhifeng Zheng Haoguang Xie Shuhua To meet the growing reliability and performance demands of business systems, the IT systems of banks are transitioning towards a distributed architecture. During this transformation, we face numerous challenges such as cloud deployment of distributed systems and self-developed hardware and … Read more
“Perfection is achieved, not when there is nothing more to add, but when there is nothing left to take away.” — Antoine de Saint-Exupéry In 1991, when Linus Torvalds hammered out the first lines of Linux kernel code in his Helsinki University dorm room, he couldn’t have imagined that his “hobby project” would become the … Read more
I am Lao Wen, an embedded engineer who loves learning.Follow me, and let’s become better together! The Memory Copy Function memcpy memcpy is short for memory copy, which means copying memory. We often use it when writing C programs. Its function prototype is as follows: void *memcpy(void *dest, const void *src, size_t n); Its function … Read more
Basic Usage of String Arrays In C++, we can use character arrays to store and manipulate strings. Here are two of the most common methods to initialize string arrays. Method 1: Initialize with String Literals #include <iostream> #include <cstring> // Provides string functions like strlen() int main() { // Method 1: Initialize with string literals … Read more
Understanding the Differences Between Buffer and Cache in Linux “Why does my free command show so much memory usage, yet the system is not slow?”“Can both Buffer and Cache be released?”“Is Linux stealing my memory?” Many newcomers to Linux are often puzzled when they see the memory usage of the system. This article aims to … Read more
In the process of Linux system operation and maintenance, performance optimization is a crucial task. Disk I/O performance is often one of the key factors affecting the overall performance of the system. To accurately grasp the status of disk I/O, it is necessary to use some practical tools, and the iostat command is one of … Read more
Click the blue text above 【AnTuTu】 to follow me Sharing technology hotspots every day! On March 2, Meizu not only launched the new version of Flyme 9 today but also surprisingly introduced the Flyme for Watch operating system. Regarding this Meizu smartwatch, it was officially announced last year that it would be released in Q4 … Read more