229 lines
6.9 KiB
HTML
229 lines
6.9 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html>
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<head>
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<meta name="generator" content=
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"HTML Tidy for Linux/x86 (vers 1 September 2005), see www.w3.org">
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<meta http-equiv="Content-Type" content=
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"text/html; charset=us-ascii">
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<title>Chapter 23. Dynamic Boost on Linux</title>
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<meta name="generator" content="DocBook XSL Stylesheets V1.68.1">
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<link rel="start" href="index.html" title=
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"NVIDIA Accelerated Linux Graphics Driver README and Installation Guide">
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<link rel="up" href="installationandconfiguration.html" title=
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"Part I. Installation and Configuration Instructions">
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<link rel="prev" href="dynamicpowermanagement.html" title=
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"Chapter 22. PCI-Express Runtime D3 (RTD3) Power Management">
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<link rel="next" href="xcompositeextension.html" title=
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"Chapter 24. Using the X Composite Extension">
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</head>
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<body>
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<div class="navheader">
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<table width="100%" summary="Navigation header">
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<tr>
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<th colspan="3" align="center">Chapter 23. Dynamic Boost
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on Linux</th>
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</tr>
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<tr>
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<td width="20%" align="left"><a accesskey="p" href=
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"dynamicpowermanagement.html">Prev</a> </td>
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<th width="60%" align="center">Part I. Installation and
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Configuration Instructions</th>
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<td width="20%" align="right"> <a accesskey="n" href=
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"xcompositeextension.html">Next</a></td>
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</tr>
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</table>
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<hr></div>
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<div class="chapter" lang="en">
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<div class="titlepage">
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<div>
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<div>
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<h2 class="title"><a name="dynamicboost" id=
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"dynamicboost"></a>Chapter 23. Dynamic Boost on
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Linux</h2>
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</div>
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</div>
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</div>
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<div class="toc">
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<p><b>Table of Contents</b></p>
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<dl>
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<dt><span class="section"><a href=
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"dynamicboost.html#Introductiond7a86">Introduction</a></span></dt>
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<dt><span class="section"><a href=
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"dynamicboost.html#HardwareRequire1d82a">Hardware
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Requirements</a></span></dt>
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<dt><span class="section"><a href=
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"dynamicboost.html#SoftwareRequirea030b">Software
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Requirements</a></span></dt>
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<dt><span class="section"><a href=
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"dynamicboost.html#ConfigurationSt5d898">Configuration
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Steps</a></span></dt>
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</dl>
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</div>
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<div class="section" lang="en">
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<div class="titlepage">
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<div>
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<div>
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<h2 class="title" style="clear: both"><a name="Introductiond7a86"
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id="Introductiond7a86"></a>Introduction</h2>
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</div>
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</div>
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</div>
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<p>The <code class="filename">nvidia-powerd</code> daemon provides
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support for the NVIDIA Dynamic Boost feature on Linux platforms.
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Dynamic Boost is a system-wide power controller which manages GPU
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and CPU power, according to the workload on the system. By shifting
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power between the GPU and the CPU, Dynamic Boost can deliver more
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power to the component that would benefit most from it, without
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impacting the system's total thermal and electrical budgets. This
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optimizes overall system performance per watt.</p>
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<p>Dynamic Boost will be active only when the notebook system is
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powered by AC and there is enough load on the GPU. It will not be
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engaged when the system is running on battery. Dynamic Boost is
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intended to improve performance on balanced as well as heavily
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GPU-bound or CPU-bound applications. Dynamic Boost requests the
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CPUFreq Governor to set the CPU frequency by updating the
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<code class=
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"filename">/sys/devices/system/cpu/cpu*/cpufreq/scaling_max_freq</code>
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sysfs entries.</p>
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</div>
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<div class="section" lang="en">
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<div class="titlepage">
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<div>
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<div>
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<h2 class="title" style="clear: both"><a name=
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"HardwareRequire1d82a" id="HardwareRequire1d82a"></a>Hardware
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Requirements</h2>
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</div>
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</div>
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</div>
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<p>Dynamic Boost is supported only on platforms that meet all of
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the following requirements:</p>
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<div class="orderedlist">
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<ol type="1">
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<li>
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<p>Notebook form factor.</p>
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</li>
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<li>
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<p>Ampere or newer GPUs.</p>
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</li>
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<li>
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<p>Intel CometLake or newer Intel chipsets, or AMD Renoir, Cezanne,
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Rembrandt, or newer AMD chipsets.</p>
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</li>
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<li>
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<p>SBIOS support for Dynamic Boost</p>
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<p>Run the following command to check if the SBIOS supports Dynamic
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Boost:</p>
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<p><strong class="userinput"><code>nvidia-settings -q
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DynamicBoostSupport</code></strong></p>
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</li>
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</ol>
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</div>
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</div>
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<div class="section" lang="en">
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<div class="titlepage">
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<div>
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<div>
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<h2 class="title" style="clear: both"><a name=
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"SoftwareRequirea030b" id="SoftwareRequirea030b"></a>Software
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Requirements</h2>
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</div>
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</div>
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</div>
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<p>The system must fulfill all of the following requirements:</p>
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<div class="orderedlist">
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<ol type="1">
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<li>
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<p>Use the <span><strong class="command">systemd</strong></span>
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init daemon.</p>
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</li>
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<li>
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<p>Support the <span><strong class="command">D-Bus</strong></span>
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message bus system.</p>
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</li>
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<li>
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<p>Use the <span><strong class="command">cpufreq</strong></span>
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infrastructure.</p>
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</li>
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</ol>
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</div>
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</div>
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<div class="section" lang="en">
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<div class="titlepage">
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<div>
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<div>
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<h2 class="title" style="clear: both"><a name=
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"ConfigurationSt5d898" id="ConfigurationSt5d898"></a>Configuration
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Steps</h2>
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</div>
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</div>
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</div>
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<p>Note: The following commands must be run with root
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permissions</p>
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<div class="orderedlist">
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<ol type="1">
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<li>
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<p>Copy the dbus configuration file <code class=
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"filename">nvidia-dbus.conf</code> from <code class=
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"filename">/usr/share/doc/NVIDIA_GLX-1.0/</code> to <code class=
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"filename">/etc/dbus-1/system.d</code>. If the <code class=
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"filename">/etc/dbus-1/system.d</code> directory does not exist,
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create it before copying the file and reboot the system so that
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dbus can scan the newly created directory in the next boot.</p>
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</li>
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<li>
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<p>To enable the nvidia-powerd service, causing it to start
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automatically on boot:</p>
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<p><strong class="userinput"><code>systemctl enable
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nvidia-powerd.service</code></strong></p>
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</li>
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<li>
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<p>To start the nvidia-powerd service:</p>
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<p><strong class="userinput"><code>systemctl start
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nvidia-powerd.service</code></strong></p>
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</li>
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</ol>
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</div>
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<p>Steps to Stop and disable the nvidia-powerd service:</p>
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<div class="orderedlist">
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<ol type="1">
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<li>
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<p>To stop the service:</p>
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<p><strong class="userinput"><code>systemctl stop
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nvidia-powerd.service</code></strong></p>
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</li>
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<li>
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<p>To disable the service such that it does not automatically start
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on boot:</p>
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<p><strong class="userinput"><code>systemctl disable
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nvidia-powerd.service</code></strong></p>
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</li>
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</ol>
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</div>
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</div>
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</div>
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<div class="navfooter">
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<hr>
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<table width="100%" summary="Navigation footer">
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<tr>
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<td width="40%" align="left"><a accesskey="p" href=
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"dynamicpowermanagement.html">Prev</a> </td>
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<td width="20%" align="center"><a accesskey="u" href=
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"installationandconfiguration.html">Up</a></td>
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<td width="40%" align="right"> <a accesskey="n" href=
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"xcompositeextension.html">Next</a></td>
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</tr>
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<tr>
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<td width="40%" align="left" valign="top">
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Chapter 22. PCI-Express Runtime D3 (RTD3) Power
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Management </td>
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<td width="20%" align="center"><a accesskey="h" href=
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"index.html">Home</a></td>
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<td width="40%" align="right" valign="top">
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Chapter 24. Using the X Composite Extension</td>
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</tr>
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</table>
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</div>
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</body>
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</html>
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