system performance Articles

In-Depth Understanding of Linux Disk Partitioning: Enterprise-Level Partitioning Practices

2026-07-03 by boardor

In Linux systems, disk partitioning is the foundation for building a stable and efficient storage environment. A reasonable partitioning scheme not only affects system performance but also relates to data security and operational efficiency. This article will delve into the disk partitioning technology in the Linux environment, providing a comprehensive and detailed analysis from the … Read more

In-Depth Understanding of the free Command: Quickly Check Memory Usage in Linux Systems

2026-06-22 by boardor

In-Depth Understanding of <span>free</span> Command: Quickly Check Memory Usage in Linux Systems In the daily management and operation of Linux systems, understanding the system’s memory usage is a very important task. Memory is one of the key resources for system performance, and improper memory usage can lead to system slowdowns, program crashes, or even service … Read more

Linux Kernel Modules

2026-06-18 by boardor

Linux Kernel Modules In the design of the Linux system kernel, kernel modules are an important mechanism for extending kernel functionality. They allow for the dynamic loading and unloading of code without the need to recompile the entire kernel. This not only enhances the system’s flexibility and maintainability but also provides developers with an efficient … Read more

Understanding SWAP Partitions in Linux Systems

2026-06-17 by boardor

Recently, after adjusting my hard disk partitions, I found that my Ubuntu often froze, with the mouse pointer not responding promptly. After using free, I discovered that there was no SWAP information. It turned out that the partition modification caused the SWAP partition to become ineffective (my 2GB DDR struggled while downloading the Android source … Read more

Linux Learning Notes – cgroup (Part 2)

2026-05-09 by boardor

Control Groups (cgroups) are a feature of the Linux kernel used to limit, record, and isolate the resource usage (CPU, memory, disk I/O, network, etc.) of process groups. cgroup v2 is the second generation implementation of cgroups, providing a more unified and consistent interface. 1. Core Concepts of cgroup v2 Hierarchy v2 adopts a single … Read more

Understanding the Meaning of Each Item in Linux Meminfo

2026-01-13 by boardor

`/proc/meminfo` is an important virtual file in the Linux system that provides detailed information about system memory usage. The following are the meanings of each metric: ## Main Memory Metrics 1. MemTotal: Total system memory (physical memory minus reserved and kernel-occupied portions) 2. MemFree: Memory that is completely unused 3. MemAvailable: Estimated memory available for … Read more

Experiencing Disk I/O Lag on Linux? Step-by-Step Guide to Identify the Culprit Process!

2025-12-22 by boardor

Experiencing Disk I/O Lag on Linux? Step-by-Step Guide to Identify the Culprit Process! Have you ever encountered a situation while using Linux where the disk suddenly becomes sluggish, the system response is delayed, and even entering commands takes forever? It is very likely that a certain process is excessively reading and writing to the disk, … Read more

Comprehensive! Selected Analysis of 100 Linux Interview Questions: Advanced Edition | Mastering Kernel Tuning and 24 Core System Performance Issues

2025-12-15 by boardor

If mastering basic commands is the entry point and being proficient with operational tools is intermediate, then true advanced Linux capability comes from your ability to gain insights into the system’s underlying architecture and precisely control performance bottlenecks.。 In high-concurrency business environments, where server resources are tight and system anomalies occur frequently, the ability to … Read more

Linux Monitoring Guide: Comprehensive Control of System Performance

2025-11-07 by boardor

1. Introduction In today’s complex IT environment, effective system monitoring is crucial for maintaining the stability, performance, and security of Linux servers. This guide aims to provide system administrators and IT professionals with a comprehensive framework for Linux monitoring, covering various aspects from basic system resources to advanced performance metrics. 2. Why Monitor Linux Systems? … Read more