In the fields of scientific computing, high-performance computing, and system-level development, hybrid programming with Python and C has become a core technology for breaking performance bottlenecks. This article reveals how to achieve a performance improvement of 10 to 100 times in Python code through hybrid programming by comparing the technical features of ctypes and Cython, … Read more
As a blogger with years of experience in the Linux field, I have seen too many people stumble over performance issues in Linux systems. Have you ever encountered a scenario where you set up a Linux server with great enthusiasm, only to find that the website responds so slowly that it makes you question your … Read more
Yesterday afternoon, my boss approached me with a stern expression: “Why is this data processing so slow? The clients are complaining.” I glanced at the screen and noticed that the progress bar was almost stuck in place, leaving me speechless. I believe most people have had similar experiences; even when the code logic is flawless, … Read more
01IntroductionWhat is the significance of request merging? Let’s take a look at the diagram below.Assuming we have three users (user IDs 1, 2, and 3), and they all want to query their basic information. Each sends a request to the server, which in turn queries the database, resulting in three requests. We all know that … Read more
This article introduces a Modbus TCP PLC data acquisition system developed based on .NET. The system defines acquisition rules through flexible configuration files and is suitable for various .NET platforms (.NET Standard 2.0, .NET Standard 2.1). It supports simultaneous real-time data acquisition from multiple devices, featuring efficient communication, modular design, data storage, and error handling, … Read more
Introduction and Advanced Background Building on the introductory guide, we have mastered the theory and basic API of RS codes. Now, we enter the advanced realm: the core of <span>reed-solomon-simd</span> lies in its modular design, allowing for custom optimizations through the Engine and Rate traits, perfectly suited for the erasure coding needs of distributed storage … Read more
Thought for a couple of seconds SIMD (Single Instruction, Multiple Data) is a form of parallel computing: a single instruction can operate on multiple data elements simultaneously. Eigen utilizes SIMD instruction sets (such as SSE and AVX on x86, NEON on ARM) to significantly accelerate vector/matrix operations. The main principles and mechanisms include: 1. Data … Read more
🚀 Is HTTP integration too complicated? Try the UniHttp framework! A 1000-word practical guide👇 📌 Core Pain Points and Solutions In enterprise-level Java development, traditional HTTP clients (like OkHttp, HttpClient) require manual URL construction, parameter management, and response parsing, leading to redundant code and maintenance difficulties. The UniHttp framework simplifies this process through declarative programming— … Read more
1. Overview of C++ Time Handling Basics and Standard Library 1.1 Basics of C Time Library () C++ inherits the library from C, providing basic date and time manipulation functionalities: #include <iostream> #include <ctime> int main() { // Get current timestamp (seconds since January 1, 1970) std::time_t now = std::time(nullptr); std::cout << "Current timestamp: " … Read more
1. Debugging Techniques for the ctypes Module 1. Cross-Platform Error Diagnosis Mechanism When calling dynamic link libraries on Windows, <span>ctypes.get_last_error()</span> is a core debugging tool. For example, when calling <span>CreateFileW</span> fails, the following code can be used to capture the error: from ctypes import windll, wintypes, get_last_error try: handle = windll.kernel32.CreateFileW( wintypes.LPCWSTR("nonexistent.txt"), wintypes.DWORD(0), wintypes.DWORD(0), None, … Read more