What is OOM Type OOM (Object-Oriented Memory) types refer to those classifications in C++ that are closely related to object lifecycle and memory management. Understanding these types is crucial for writing safe and efficient C++ code. Main Classifications of OOM Types 1. Trivial Types Characteristics: Has a trivial default constructor Has a trivial copy/move constructor … Read more
(Click the public account above to quickly follow) Source:WsztRush Link: http://wsztrush.github.io/%E7%BC%96%E7%A8%8B%E6%8A%80%E6%9C%AF/2015/05/13/Linux-Memory.html Most servers today run on Linux, so as a programmer, it is necessary to have a basic understanding of how the system operates. Regarding memory, you need to know: Address Mapping Memory Management Methods Page Faults First, let’s look at some basic knowledge. From … Read more
(Click the public account above to quickly follow) Source: taozj https://taozj.org/201701/linux-performance-basic.html If you have good articles to submit, please click → here for details A server based on the Linux operating system exhibits various performance metrics while running. Generally, operations and maintenance personnel, as well as system administrators, are very sensitive to this data, but … Read more
This article aims to introduce the memory usage methods in the Linux kernel, detailing the various regions of memory allocation and their functions. 1. Physical Memory Allocation 1. Physical Memory Allocation Diagram Linux kernel’s physical memory allocation General Overview: The entire physical memory is divided into four blocks. Block 1: Linux Kernel Program This is … Read more
Dynamic Memory Allocation in C: malloc and free In C programming, dynamic memory allocation is an important concept. It allows programs to request and release memory as needed during runtime. <span>malloc</span> and <span>free</span> are the two most commonly used functions for dynamic memory management. In this article, we will provide a detailed introduction to the … Read more
Differences and Connections Between C and C++ Introduction C and C++ are two widely used programming languages with a long history, playing significant roles in software development. Despite their many similarities, there are also notable differences. This article will explore the similarities and differences between these two languages in detail. 1. Basic Overview 1. C … Read more
01Union In the previous article “Combining Enumerations and Structures”, it was mentioned that a structure is like a packaging that encapsulates variables with common characteristics. A structure is a composite or complex type that can contain multiple members of different types. In C language, there is another syntax that is very similar to structures, called … Read more
The Core Role of the FreeRTOS Idle Task Maintaining Minimum System Operation Guarantee Automatically created after the scheduler starts, with the lowest priority (usually 0), ensuring that there is always a task for the system to execute. When all user tasks are blocked or suspended, the idle task takes over the CPU to avoid an … Read more
Introduction: Still troubled by Python’s GIL limitations? This article will guide you through breaking performance bottlenecks using underlying principles + practical solutions, achieving a high-performance architecture evolution from single-machine to distributed! A Python full-stack development gift package is included at the end, claim it now >> 1. Analysis of Underlying Principles for Performance Optimization 1️⃣ … Read more
1. Memory Management: Python’s “Invisible Steward” Python memory management operates through automatic garbage collection and reference counting, silently handling: • Object creation and destruction • Memory leak prevention • Circular reference handling • Optimization of large memory objects Core Objective: To achieve a balance between development efficiency and runtime performance, allowing developers to avoid manual … Read more