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Deepin Linux

Research areas: Windows & Linux platforms, C/C++ backend development, embedded systems and Linux kernel, etc.

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Latest from Deepin Linux

100 recent articles max

Deepin Linux

Feb 9, 2026 · Fundamentals

Master Essential Linux Commands: A Beginner’s Hands‑On Guide

This comprehensive guide walks Linux newcomers through core command‑line fundamentals, covering command syntax, built‑in and external utilities, file and directory management, permission handling, process monitoring, networking tools, compression, package management, and advanced techniques like piping, find, grep, awk, and sed, with practical examples and tips for effective learning.

LinuxUnixbash

0 likes · 38 min read

Master Essential Linux Commands: A Beginner’s Hands‑On Guide

Deepin Linux

Feb 8, 2026 · Fundamentals

Unlocking Linux Kernel File Systems: From Inodes to VFS and ProcFS Explained

This comprehensive guide explores the Linux kernel file system architecture, covering fundamental concepts such as inodes, dentries, superblocks, logical blocks, the VFS layer, common on‑disk filesystems, mounting procedures, and a deep dive into the proc virtual filesystem with code examples and practical usage tips.

File systemOperating Systeminode

0 likes · 39 min read

Unlocking Linux Kernel File Systems: From Inodes to VFS and ProcFS Explained

Deepin Linux

Feb 7, 2026 · Fundamentals

Mastering Linux Process Synchronization: Prevent Race Conditions with Mutexes, Semaphores, and More

This comprehensive guide explains why race conditions occur in Linux processes, explores the underlying concepts of critical sections and synchronization, and provides practical examples of atomic operations, mutexes, semaphores, condition variables, read‑write locks, and spinlocks to ensure safe concurrent programming.

C++POSIXcondition variable

0 likes · 39 min read

Mastering Linux Process Synchronization: Prevent Race Conditions with Mutexes, Semaphores, and More

Deepin Linux

Feb 5, 2026 · Fundamentals

Unlocking Ethernet: How MAC and PHY Drive Your Network Traffic

This article demystifies Ethernet by explaining the roles of MAC and PHY within the network protocol stack, covering OSI and TCP/IP models, data encapsulation, ARP address resolution, hardware interfaces like MII/MDIO, and practical troubleshooting tips for real‑world network devices.

MacNetwork ProtocolOSI model

0 likes · 36 min read

Unlocking Ethernet: How MAC and PHY Drive Your Network Traffic

Deepin Linux

Feb 4, 2026 · Fundamentals

How Zero‑Copy and DMA Supercharge Data Transfer Performance

This article explains the fundamentals of zero‑copy, DMA, PageCache and RDMA, compares them with traditional I/O, describes Linux implementations such as sendfile, mmap+write, splice and Java NIO APIs, and shows practical use‑cases that dramatically reduce CPU load and latency in high‑throughput networking and file handling.

DMAJava NIOLinux

0 likes · 40 min read

How Zero‑Copy and DMA Supercharge Data Transfer Performance

Deepin Linux

Feb 2, 2026 · Fundamentals

Mastering Linux IPC: Pipes, Message Queues, Shared Memory, Semaphores, Signals & Sockets Explained

This comprehensive guide breaks down Linux inter‑process communication (IPC) by explaining its core concepts, why it’s needed, and detailing six mechanisms—pipes, named pipes, message queues, shared memory, semaphores/PV operations, signals, and sockets—complete with code samples, diagrams, and real‑world usage scenarios.

C ProgrammingIPCLinux

0 likes · 49 min read

Mastering Linux IPC: Pipes, Message Queues, Shared Memory, Semaphores, Signals & Sockets Explained

Deepin Linux

Jan 30, 2026 · Backend Development

Master Linux TCP: System Calls, Handshakes, and Real‑World Code

This article provides a comprehensive guide to Linux TCP development, explaining the role of system calls, the three‑way handshake and four‑way termination, detailing core socket functions such as socket, bind, listen, accept, connect, read/write, recv/send, and includes complete example code for building a simple TCP server and client with troubleshooting tips.

C++Linuxsocket programming

0 likes · 41 min read

Master Linux TCP: System Calls, Handshakes, and Real‑World Code

Deepin Linux

Jan 28, 2026 · Fundamentals

Unlock Linux Performance: Master Memory Alignment and Struct Optimization

This article explains the core principles of memory alignment on Linux, shows how misaligned data harms CPU cache and execution speed, provides concrete C code examples and benchmark results, and offers practical techniques—including compiler directives and struct layout tricks—to achieve optimal performance.

C ProgrammingLinuxPerformance Optimization

0 likes · 22 min read

Unlock Linux Performance: Master Memory Alignment and Struct Optimization

Deepin Linux

Jan 27, 2026 · Fundamentals

Uncover Hidden Latency: Mastering the Linux Kernel Network Stack for High‑Performance Networking

This article explains how subtle misconfigurations in the Linux kernel network protocol stack can cause high latency, walks through the stack’s layered architecture, details TCP/UDP mechanisms, and provides practical troubleshooting steps with tools like ethtool, ss, tcpdump, Wireshark, and bpftrace.

LinuxNetwork StackUDP

0 likes · 40 min read

Uncover Hidden Latency: Mastering the Linux Kernel Network Stack for High‑Performance Networking

Deepin Linux

Jan 25, 2026 · Fundamentals

Why mmap Outperforms io_uring in Real-World I/O – A Deep Linux Memory‑Mapping Guide

mmap, the classic Linux memory‑mapping technique, often surpasses the modern async io_uring in various I/O scenarios by eliminating redundant data copies, reducing system calls, and enabling zero‑copy access, while the article explains its fundamentals, workflow, performance comparisons, practical usage, pitfalls, and code examples.

LinuxZero-copyio_uring

0 likes · 44 min read

Why mmap Outperforms io_uring in Real-World I/O – A Deep Linux Memory‑Mapping Guide