https://linzeyan.github.io/categories/cpu/Recent content in CPU on RickyHugo -- gohugo.ioenTue, 02 Sep 2025 08:24:00 +0800https://linzeyan.github.io/posts/2025/20250902-linux-cpu-performance/Tue, 02 Sep 2025 08:24:00 +0800https://linzeyan.github.io/posts/2025/20250902-linux-cpu-performance/<ul> <li><a href="https://blog.ibytebox.com/archives/02cf4c4a-0af7-43f1-bb65-ccdb54a52306" target="_blank" rel="noopener">Dedicated Server CPU Frequency Maximization Guide</a></li> </ul> <h2 id="check-which-cpu-mode-is-in-use">Check which CPU mode is in use</h2> <p>Prerequisites System: Linux (Debian, Ubuntu, Proxmox, etc.)</p> <p>Privileges: root</p> <p>CPU: supports dynamic frequency scaling (Intel Xeon, AMD EPYC / Ryzen, etc.)</p> <h3 id="governor">governor</h3> <p><code>cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor</code></p> <ul> <li>powersave: low-power mode (locked low frequency, power-saving but weak)</li> <li>ondemand: on-demand boost (only boosts when needed, may respond a bit slowly)</li> <li>performance: full performance (this is what we want)</li> </ul> <h3 id="check-which-driver-the-kernel-uses-intel--amd">Check which driver the kernel uses (Intel / AMD)</h3> <p><code>cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_driver</code></p>