Red Hat Summit Red Hat Summitサポートコンソール開発者トライアルの開始お問い合わせ

5.6. Optimizing CPU frequency scaling

By default, RHEL uses CPU frequency scaling to save power and reduce heat when the CPU is not under heavy load. To prioritize performance over power savings, you can configure the CPU to operate at its maximum clock speed. This ensures that the CPU can handle data deduplication and compression processes with maximum efficiency. By running the CPU at its highest frequency, resource-intensive operations can be executed more quickly, potentially improving the overall performance of LVM-VDO in terms of data reduction and storage optimization.

警告

Tuning CPU frequency scaling for higher performance can increase power consumption and heat generation. In inadequately cooled systems, this can cause overheating and might result in thermal throttling, which limits the performance gains.

Procedure

  1. Display available CPU governors: 

    $ cpupower frequency-info -g

  2. Change the scaling governor to prioritize performance: 

    # cpupower frequency-set -g performance

    This setting persists until reboot.

  3. Optional: To make the persistent change in scaling governor across reboot, create a custom systemd service:

    1. Create a new /etc/systemd/system/cpufreq.service file with the following content: 

      [Unit]
Description=Set CPU scaling governor to performance

[Service]
ExecStart=/usr/bin/cpupower frequency-set -g performance

[Install]
WantedBy=multi-user.target
    2. Save the file and exit.

    3. Reload the service file: 

      # systemctl daemon-reload

    4. Enable the new service: 

      # systemctl enable cpufreq.service

Verification

  • Display the currently used CPU frequency policy: 

    $ cpupower frequency-info -p

  • Optional: If you made the scaling governor change persistent, check if the cpufreq.service is enabled: 

    # systemctl is-enabled cpufreq.service
Red Hat logoGithubredditYoutubeTwitter

詳細情報

試用、購入および販売

コミュニティー

Red Hat ドキュメントについて

Red Hat をお使いのお客様が、信頼できるコンテンツが含まれている製品やサービスを活用することで、イノベーションを行い、目標を達成できるようにします。 最新の更新を見る.

多様性を受け入れるオープンソースの強化

Red Hat では、コード、ドキュメント、Web プロパティーにおける配慮に欠ける用語の置き換えに取り組んでいます。このような変更は、段階的に実施される予定です。詳細情報: Red Hat ブログ.

会社概要

Red Hat は、企業がコアとなるデータセンターからネットワークエッジに至るまで、各種プラットフォームや環境全体で作業を簡素化できるように、強化されたソリューションを提供しています。

Theme

© 2026 Red Hatトップに戻る