multithreading

Implementing Multiprocessing in C: Process Creation and Management

by
Implementing Multiprocessing in C: Process Creation and Management

Implementing Multiprocessing in C: Process Creation and Management In modern operating systems, multiprocessing is a common technique that allows programs to execute multiple tasks simultaneously. The C language provides robust support for implementing multiprocessing, primarily through the <span>fork()</span> system call to create new processes. This article will detail how to implement multiprocessing in C, including … Read more

Multithreaded Programming in C: Thread Creation and Synchronization

by
Multithreaded Programming in C: Thread Creation and Synchronization

In modern computing, multithreaded programming is a common technique that allows programs to execute multiple tasks simultaneously, thereby improving efficiency and responsiveness. The C language provides robust multithreading support through the POSIX threads (pthread) library. This article will detail how to create and manage threads in C, as well as how to synchronize them. 1. … Read more

MIT6.S081 – Lab7 Multithreading | Process Scheduling

by
MIT6.S081 - Lab7 Multithreading | Process Scheduling

This article is a lab note for Lab7 of the MIT6.S081 Operating Systems course. The task is to simulate kernel process switching by implementing a user-level thread switching functionality. Additionally, I will introduce how xv6 achieves process switching by examining the source code. Lab7 address: https://pdos.csail.mit.edu/6.828/2020/labs/thread.html My lab records: https://github.com/yibaoshan/xv6-labs-2020/tree/thread Before starting the experiment, you … Read more

Implementing Peterson’s Algorithm for Mutual Exclusion in C Language

by
Implementing Peterson's Algorithm for Mutual Exclusion in C Language

Implementing Peterson’s Algorithm for Mutual Exclusion in C Language After studying the section on process mutual exclusion, I thought I would try to implement it using user-level multithreading in C, which led to this article. Complete Code Peterson’s algorithm combines the single flag method and the double flag method to achieve true mutual exclusion for … Read more

Performance Optimization Methods for C++ Deployment

by
Performance Optimization Methods for C++ Deployment

01 Use Structures to Store Common Variables in AdvanceWhen writing preprocessing and postprocessing functions, certain variables, such as the shape of the model input tensor and count, are often used multiple times. If these values are recalculated in each processing function, it will increase the computational load during deployment. In such cases, consider using a … Read more

Detailed Explanation of C++ Multithreading Memory Model (Memory Order)

by
Detailed Explanation of C++ Multithreading Memory Model (Memory Order)

In multithreaded programming, there are two issues to pay attention to: one is data races, and the other is memory execution order. What is a data race? First, let’s look at what a data race is and what problems it can cause. #include <iostream> #include <thread> int counter = 0; void increment() { for (int … Read more

ARMv8/ARMv9 Memory Barrier Mechanism (Observer & Barrier)

by
ARMv8/ARMv9 Memory Barrier Mechanism (Observer & Barrier)

ver0.3 Introduction Those who have persisted in reading this article are already remarkable, as they now understand the weak memory ordering architecture of ARM. You not only understand the types of memory, the memory sharing mechanisms, and the memory consistency mechanisms, but also the CPU architecture and the microarchitecture of processors, all of which lay … Read more

Understanding Linux Synchronization Principles: Simulating the BlockQueue Producer-Consumer Model for Efficient Concurrent Programming!

by
Understanding Linux Synchronization Principles: Simulating the BlockQueue Producer-Consumer Model for Efficient Concurrent Programming!

Linux | Red Hat Certified | IT Technology | Operations Engineer 👇 Join our technical exchange QQ group with the note 【Public Account】 for faster approval 1. Concept of Thread Synchronization Condition Variable: When a thread accesses a variable exclusively, it may find that it cannot proceed until other threads change the state. For example, … Read more

Python Concurrency Programming: The Ultimate Showdown from Multithreading to Asynchronous IO

by
Python Concurrency Programming: The Ultimate Showdown from Multithreading to Asynchronous IO

1. Concurrency Models: Python’s “Three Pillars” Python provides three core concurrency models, each with its own strengths: • Multithreading: Suitable for I/O-bound tasks • Multiprocessing: Suitable for CPU-bound tasks • Asynchronous IO: The king of high concurrency Performance Comparison: Model Switching Overhead Memory Usage Applicable Scenarios Multithreading Low Low File I/O/Network Requests Multiprocessing High High … Read more

Practical Analysis of Python Concurrency: ThreadPoolExecutor

by
Practical Analysis of Python Concurrency: ThreadPoolExecutor

Click the blue text to follow us Hello everyone, I am Cai Ge. Today we will talk about concurrency in Python, especially the use of <span>ThreadPoolExecutor</span>. Concurrency is a very important topic, especially when handling multiple tasks such as network requests and file operations. Through concurrency, we can improve the execution efficiency of programs and … Read more