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[CentOS 8]チューニングプロファイルの設定(メモ)

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概要

CentOS(たぶんRHELも)はtunedデーモンがチューニングプロファイルを管理していて、プロファイルを選択することでシステムのパフォーマンスを最適化することができる。
tuned-admコマンドで設定、管理する。

tuned-admコマンド

設定されているプロファイルの確認

$ tuned-adm active
Current active profile: virtual-guest

プロファイルの一覧表示

$ tuned-adm list
Available profiles:
- accelerator-performance     - Throughput performance based tuning with disabled higher latency STOP states
- balanced                    - General non-specialized tuned profile
- desktop                     - Optimize for the desktop use-case
- hpc-compute                 - Optimize for HPC compute workloads
- intel-sst                   - Configure for Intel Speed Select Base Frequency
- latency-performance         - Optimize for deterministic performance at the cost of increased power consumption
- network-latency             - Optimize for deterministic performance at the cost of increased power consumption, focused on low latency network performance
- network-throughput          - Optimize for streaming network throughput, generally only necessary on older CPUs or 40G+ networks
- powersave                   - Optimize for low power consumption
- throughput-performance      - Broadly applicable tuning that provides excellent performance across a variety of common server workloads
- virtual-guest               - Optimize for running inside a virtual guest
- virtual-host                - Optimize for running KVM guests
Current active profile: virtual-guest

推奨プロファイルの表示

$ tuned-adm recommend
virtual-guest

 自動設定

$ sudo tuned-adm auto_profile
$ tuned-adm active
Current active profile: virtual-guest

プロファイルモードの確認

$ tuned-adm profile_mode
Profile selection mode: auto

プロファイルの手動変更

$ sudo tuned-adm profile balanced

無効化

$ sudo tuned-adm off
$ tuned-adm active
No current active profile.
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