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Selection and planning of network equipment CPU

Apr 07, 2024 am 08:10 AM
mysql linux

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

优化文件系统的管理_linux 文件系统优化_优化文件系统NTFS的管理

Replenish:

优化文件系统NTFS的管理_linux 文件系统优化_优化文件系统的管理

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:

linux 文件系统优化_优化文件系统的管理_优化文件系统NTFS的管理

2.1. High CPU load and low IO load

linux 文件系统优化_优化文件系统的管理_优化文件系统NTFS的管理

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:

优化文件系统的管理_优化文件系统NTFS的管理_linux 文件系统优化

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。

优化文件系统的管理_linux 文件系统优化_优化文件系统NTFS的管理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。

linux ファイル システムの最適化

、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

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