1.1, CPU aspect:
vmstat、sar、top P、htop、nmon、mpstat
1.2, Memory:
free、ps-aux、top M
1.3, IO device (c drive, network):
iostat、ss、netstat、iptraf、iftop、lsof
Replenish:
vmstat command description:
iostat command description example command: iostat-dk15
iostat-d-k-x5(View device usage (%util) and response time (await))
2. Solutions to system-level problems
In actual production, it is generally believed that as long as the CPU does not exceed 90%, there will be no problems. In fact, the following special situation cannot be ruled out:
2.1. High CPU load and low IO load
2.2. High IO load and low CPU load
2.3, IO and CPU loads are very high
The hardware is not enough or there is a problem with SQL
3. Basic optimization--hardware optimization
3.1. Host:
3.2. CPU selection:
3.3. Memory selection:
3.4. Storage:
3.5. Raid card: Host raid card selection:
3.6. Network equipment:
Use traffic to support higher network equipment (switches, routers, network cables, network cards, HBA cards)
Note: The above planning should be considered when initially designing the system.
4. Operating system optimization
Cpu:
Hongqi Linux デスクトップ バージョンを調整する必要は基本的にありません。ハードウェアの選択だけに集中してください。
ビデオメモリ:
基本的に調整は必要ありません。ハードウェアの選択に集中してください。
###スワップ:###MySQL はスワップの使用を回避しようとします。 Alibaba Cloud サーバーのデフォルトのスワップは 0
ですIO:
このパラメータは、Linux がスワップを使用する傾向があるか、ファイル システム キャッシュを解放する傾向があるかを決定します。ビデオ メモリが不足している場合、値が低いほど、ファイル システム キャッシュが解放される可能性が高くなります。実際、このパラメータはスワップを使用する可能性を減らすだけで、Linux によるスワップの使用を妨げるものではありません。
MySQL 構成パラメータ innodb_flush_methodlinux を変更して、ハードウェア情報を表示し、O_DIRECT モードを有効にします。このような場合、InnoDB のバッファプールはファイル システム キャッシュを直接バイパスして C ドライブにアクセスし、redolog は引き続きファイル システム キャッシュを使用します。
、Redolog は上書きモードになっていることに注意してください。ファイル システム キャッシュlinux ファイル システムの最適化が使用されますが、あまり多くを消費することはありません。 5. システムパラメータの調整
Linux システム カーネル パラメータの最適化:
リーリー
ユーザー制限パラメータ:
リーリー
6. 無関係なアプリケーションの最適化
ビジネス アプリケーションとデータベース アプリケーションは独立しています。ファイアウォール: iptables、selinux およびその他の役に立たないサービス (オフにする):
ああああ
The above is the detailed content of Selection and planning of network equipment CPU. For more information, please follow other related articles on the PHP Chinese website!

Introduction: Securing the Digital Frontier with Linux-Based Ethical Hacking In our increasingly interconnected world, cybersecurity is paramount. Ethical hacking and penetration testing are vital for proactively identifying and mitigating vulnerabi

The methods for basic Linux learning from scratch include: 1. Understand the file system and command line interface, 2. Master basic commands such as ls, cd, mkdir, 3. Learn file operations, such as creating and editing files, 4. Explore advanced usage such as pipelines and grep commands, 5. Master debugging skills and performance optimization, 6. Continuously improve skills through practice and exploration.

Linux is widely used in servers, embedded systems and desktop environments. 1) In the server field, Linux has become an ideal choice for hosting websites, databases and applications due to its stability and security. 2) In embedded systems, Linux is popular for its high customization and efficiency. 3) In the desktop environment, Linux provides a variety of desktop environments to meet the needs of different users.

The disadvantages of Linux include user experience, software compatibility, hardware support, and learning curve. 1. The user experience is not as friendly as Windows or macOS, and it relies on the command line interface. 2. The software compatibility is not as good as other systems and lacks native versions of many commercial software. 3. Hardware support is not as comprehensive as Windows, and drivers may be compiled manually. 4. The learning curve is steep, and mastering command line operations requires time and patience.

Linuxisnothardtolearn,butthedifficultydependsonyourbackgroundandgoals.ForthosewithOSexperience,especiallycommand-linefamiliarity,Linuxisaneasytransition.Beginnersmayfaceasteeperlearningcurvebutcanmanagewithproperresources.Linux'sopen-sourcenature,bas

The five basic components of Linux are: 1. The kernel, managing hardware resources; 2. The system library, providing functions and services; 3. Shell, the interface for users to interact with the system; 4. The file system, storing and organizing data; 5. Applications, using system resources to implement functions.

Opening a new chapter in smart home: Open source home automation system based on Ubuntu Smart home technology has revolutionized the way we interact with our living spaces, bringing convenience, safety and energy efficiency to our daily lives. From remote control of lights and appliances, to monitoring security cameras and automated climate control, smart home technology is becoming increasingly popular. However, many business smart home systems have limitations: high costs, privacy issues, and limited compatibility. Fortunately, open source software solutions combine the power of Ubuntu to provide an alternative – allowing users to create a customizable, cost-effective and secure smart home ecosystem. This guide will explore how to set up a home automation system using Ubuntu and open source tools.

Linux vs. Windows: A 2025 Comparison Thinking about switching from macOS or Windows? Linux might be the answer. While macOS users will find a relatively smooth transition (due to macOS's UNIX core), Windows users will need to adapt. This guide hig


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

DVWA
Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software

SAP NetWeaver Server Adapter for Eclipse
Integrate Eclipse with SAP NetWeaver application server.

EditPlus Chinese cracked version
Small size, syntax highlighting, does not support code prompt function

Dreamweaver Mac version
Visual web development tools

Zend Studio 13.0.1
Powerful PHP integrated development environment