This article explains how memory leaks act like invisible thieves that gradually steal RAM from the page cache and RSS, outlines their four‑step attack process, shows how to detect them with process‑level and system‑level metrics, and provides emergency and preventive measures to protect your applications.
The article explains that Windows 10 support ends on October 14, 2025 with the final KB5066791 patch, describes a bug and a special group‑policy rollback fix, and analyzes Microsoft's shift to a yearly Windows 11 update cadence culminating in the exclusive 26H1 preview for Snapdragon X2 ARM devices.
The article examines why Linux desktop environments lag behind modern PCs, highlighting compatibility problems, software distribution challenges, hardware driver gaps, security concerns, and the lack of funding that together create a steep learning curve for non‑technical users.
The article traces CentOS’s evolution from a downstream RHEL clone to the upstream‑focused CentOS Stream, explains the end of CentOS Linux updates, and evaluates a range of alternative distributions—including Ubuntu, Rocky Linux, Oracle Linux, and several Chinese OS projects—to help enterprises choose the most suitable platform for their workloads.
This article breaks down common operating‑system and networking interview topics, covering multithreading on a single core, segmentation and paging virtual memory, page faults and swap, kernel vs user mode, HTTP status codes and protocol evolution, and TCP congestion‑control algorithms with practical examples.
The article explains the three Windows 11 LTSC 2024 editions, compares their licensing, lifecycle, and feature differences, recommends the IoT Enterprise LTSC for its 10‑year support and lack of hardware restrictions, and answers common questions about Edge, the Store, and physical‑machine installation.
This article explains the meaning of 32‑bit and 64‑bit labels for CPUs, operating systems, software and integer types, shows how source code becomes machine code and a running process, and clarifies the memory‑addressing limits and compatibility rules of each architecture.
This article provides a comprehensive overview of Linux processes—from their definition and lifecycle to creation, scheduling strategies such as FCFS, round‑robin, EDF, and RMS, as well as various inter‑process communication mechanisms like pipes, sockets, shared memory, semaphores, and the kernel implementation of fork and context switching.
Linux kernel 6.3, released after two months of development, brings a host of new power‑management drivers for ARM and RISC‑V, filesystem enhancements, expanded Thunderbolt and HID support, and numerous hardware driver updates, offering developers fresh capabilities while requiring manual compilation for immediate use.
Windows 11, launched on October 5, introduces a refreshed start menu, widgets, a redesigned Microsoft Store, enhanced clipboard, a modern touch keyboard, revamped task view, updated captions and camera settings, improved Bluetooth audio, new display controls, refreshed File Explorer, storage health monitoring, updated emojis, fonts, sandbox improvements, and the removal of legacy bloatware, all aimed at a more consumer‑focused experience.
This article explains how the Linux kernel's printk function stores messages in a ring buffer, how those messages are exposed to user space via dmesg, /proc/kmsg, klogctl, and the system console, and why understanding this flow is crucial for developers and operators.
The article shares a personal deep‑dive into using Linux (specifically the Deepin distribution) for daily work, development, communication, and entertainment, highlighting its graphical interface, rich software ecosystem, Android app support, efficiency advantages, and the freedom to customize every aspect of the system.
This article explains Linux's swapping mechanism, detailing how the kernel moves rarely used memory pages to disk to handle memory shortage and idle memory, the underlying allocation paths, key parameters, and the trade‑offs involved for system performance and stability.
This article provides a comprehensive, step‑by‑step explanation of Linux fundamentals—including the kernel architecture, process and thread creation, memory management, filesystem structures, I/O handling, and built‑in security mechanisms—illustrated with code snippets and diagrams.
This article explains the fundamentals of operating‑system I/O management, covering device types, controllers, memory‑mapped I/O, I/O ports, interrupt handling, programmable I/O, DMA, disk scheduling, RAID, stable storage, and clock/timer mechanisms.
The article analyses the historical development of PC, server, and mobile operating systems, explains why China has not produced a mainstream OS or language, highlights the importance of timing, market ecosystem, and talent, and explores future opportunities for Chinese platforms.
This article provides concise definitions and explanations of 53 core operating‑system and hardware concepts—including block and character devices, controllers, DMA, scheduling algorithms, virtualization, and error handling—offering a quick reference for developers and students alike.
This article explores the design principles, evolution, and implementation details of schedulers across operating systems, the Go programming language runtime, and Kubernetes, covering concepts such as task and resource allocation, cooperative vs. preemptive scheduling, work‑stealing, priority algorithms, and the latest scheduling framework extensions.
Drawing from interviews at over 30 companies, this guide outlines the core data‑structure, algorithm, operating‑system, networking, C++ and project‑experience topics that Linux server developers should master to succeed in technical interviews, and offers practical advice on evaluating companies and interview dynamics.
The author examines whether China can create an operating system that rivals Windows, macOS, Linux, or Android, recounts personal attempts at building a tiny OS kernel, analyzes systemic obstacles in academia and industry, and proposes early programming education as a long‑term solution.
