<!DOCTYPE html><htmllang="en"dir="auto"><head><metacharset="utf-8"><metaname="viewport"content="width=device-width, initial-scale=1, maximum-scale=5, user-scalable=no"><metaname="description"content="Feature labels Table of contents Built-in labels CPU Kernel Memory Network PCI USB Storage System Custom User defined labels Extended resources Fea..."><metaname="revised"content=""><metaname="author"content="Kubernetes SIGs"><metaname="generator"content="rundocs/jekyll-rtd-theme v2.0.10"><metaname="theme-color"content="#2980b9"><title>Feature labels · Node Feature Discovery</title><metaname="twitter:title"content="Feature labels · Node Feature Discovery"><metaname="twitter:description"content="Feature labels Table of contents Built-in labels CPU Kernel Memory Network PCI USB Storage System Custom User defined labels Extended resources Fea..."><metaname="twitter:card"content="summary"><metaname="twitter:site"content="@Kubernetes SIGs"><metaname="twitter:url"content="https://kubernetes-sigs.github.com/node-feature-discovery/master/usage/features.html"><metaname="twitter:creator"content="@rundocs/jekyll-rtd-theme v2.0.10"><metaproperty="og:title"content="Feature labels · Node Feature Discovery"><metaproperty="og:description"content="Feature labels Table of contents Built-in labels CPU Kernel Memory Network PCI USB Storage System Custom User defined labels Extended resources Fea..."><metaproperty="og:locale"content="en"><metaproperty="og:url"content="https://kubernetes-sigs.github.com/node-feature-discovery/master/usage/features.html"><metaproperty="og:type"content="article"><metaproperty="article:author"content="Kubernetes SIGs"><metaproperty="article:published_time"content="2016-07-23T05:07:52+00:00"><metaproperty="article:modified_time"content="2024-07-22T12:36:52+00:00"><scripttype="application/ld+json">{"@context":"https://schema.org","@type":"Article","mainEntityOfPage":{"@type":"WebPage","@id":"https://kubernetes-sigs.github.com/node-feature-discovery/master/usage/features.html"},"headline":"Feature labels · Node Feature Discovery","image":[],"author":{"@type":"Person","name":"Kubernetes SIGs"},"datePublished":"2016-07-23T05:07:52+00:00","dateModified":"2024-07-22T12:36:52+00:00","publisher":{"@type":"Organization","name":"Kubernetes SIGs","logo":{"@type":"ImageObject","url":"https://avatars.githubusercontent.com/u/36015203?v=4"}},"description":"Feature labels Table of contents Built-in labels CPU Kernel Memory Network PCI USB Storage System Custom User defined labels Extended resources Fea..."}</script><linkrel="dns-prefetch"href="https://cdn.jsdelivr.net"><linkrel="next"href="https://kubernetes-sigs.github.com/node-feature-discovery/master/usage/using-labels.html"><linkrel="canonical"href="https://kubernetes-sigs.github.com/node-feature-discovery/master/usage/features.html"><linkrel="icon"type="image/svg+xml"href="/node-feature-discovery/master/assets/images/favicon.svg"><linkrel="icon"type="image/png"href="/node-feature-discovery/master/assets/images/favicon-16x16.png"sizes="16x16"><linkrel="icon"type="image/png"href="/node-feature-discovery/master/assets/images/favicon-32x32.png"sizes="32x32"><linkrel="icon"type="image/png"href="/node-feature-discovery/master/assets/images/favicon-96x96.png"sizes="96x96"><linkrel="mask-icon"href="/node-feature-discovery/master/assets/images/favicon.svg"color="#2980b9"><linkrel="apple-touch-icon"href="/node-feature-discovery/master/assets/images/apple-touch-icon-300x300.jpg"><linkrel="stylesheet"href="https://cdn.jsdelivr.net/gh/rundocs/jekyll-rtd-theme@2.0.10/assets/css/theme.min.css"><style>@media(min-width:1280px){.content-wrap{max-width:1200px}}</style><script>window.ui={title:"NodeFeatureDiscovery",baseurl:"/node-feature-discovery/master",i18n:{search_results:"SearchResults",search_results_found:"Searchfinished,found#page(s)matchingthesearchquery.",search_results_not_found:"Yoursearchdidnotmatchanydo
</code></pre></div></div><blockquote><p><strong>NOTE:</strong> Consecutive runs of nfd-worker will update the labels on a given node. If features are not discovered on a consecutive run, the corresponding label will be removed. This includes any restrictions placed on the consecutive run, such as restricting discovered features with the <ahref="/node-feature-discovery/master/reference/master-commandline-reference.html#-label-whitelist"><codeclass="language-plaintext highlighter-rouge notranslate">-label-whitelist</code></a> flag of nfd-master or <ahref="/node-feature-discovery/master/reference/worker-configuration-reference.html#corelabelwhitelist"><codeclass="language-plaintext highlighter-rouge notranslate">core.labelWhiteList</code></a> option of nfd-worker.</p></blockquote><h3id="cpu">CPU</h3><table><thead><tr><th>Feature name</th><th>Value</th><th>Description</th></tr></thead><tbody><tr><td><strong><codeclass="language-plaintext highlighter-rouge notranslate">cpu-cpuid.<cpuid-flag></code></strong></td><td>true</td><td>CPU capability is supported. <strong>NOTE:</strong> the capability might be supported but not enabled.</td></tr><tr><td><strong><codeclass="language-plaintext highlighter-rouge notranslate">cpu-cpuid.<cpuid-attribute></code></strong></td><td>string</td><td>CPU attribute value</td></tr><tr><td><strong><codeclass="language-plaintext highlighter-rouge notranslate">cpu-hardware_multithreading</code></strong></td><td>true</td><td>Hardware multithreading, such as Intel HTT, enabled (number of logical CPUs is greater than physical CPUs)</td></tr><tr><td><strong><codeclass="language-plaintext highlighter-rouge notranslate">cpu-coprocessor.nx_gzip</code></strong></td><td>true</td><td>Nest Accelerator for GZIP is supported(Power).</td></tr><tr><td><strong><codeclass="language-plaintext highlighter-rouge notranslate">cpu-power.sst_bf.enabled</code></strong></td><td>true</td><td>Intel SST-BF (<ahref="https://www.intel.com/content/www/us/en/architecture-and-technology/speed-select-technology-article.html">Intel Speed Select Technology</a> - Base frequency) enabled</td></tr><tr><td><strong><codeclass="language-plaintext highlighter-rouge notranslate">cpu-pstate.status</code></strong></td><td>string</td><td>The status of the <ahref="https://www.kernel.org/doc/Documentation/cpu-freq/intel-pstate.txt">Intel pstate</a> driver when in use and enabled, either ‘active' or ‘passive'.</td></tr><tr><td><strong><codeclass="language-plaintext highlighter-rouge notranslate">cpu-pstate.turbo</code></strong></td><td>bool</td><td>Set to ‘true' if turbo frequencies are enabled in Intel pstate driver, set to ‘false' if they have been disabled.</td></tr><tr><td><strong><codeclass="language-plaintext highlighter-rouge notranslate">cpu-pstate.scaling_governor</code></strong></td><td>string</td><td>The value of the Intel pstate scaling_governor when in use, either ‘powersave' or ‘performance'.</td></tr><tr><td><strong><codeclass="language-plaintext highlighter-rouge notranslate">cpu-cstate.enabled</code></strong></td><td>bool</td><td>Set to ‘true' if cstates are set in the intel_idle driver, otherwise set to ‘false'. Unset if intel_idle cpuidle driver is not active.</td></tr><tr><td><strong><codeclass="language-plaintext highlighter-rouge notranslate">cpu-security.sgx.enabled</code></strong></td><td>true</td><td>Set to ‘true' if Intel SGX is enabled in BIOS (based on a non-zero sum value of SGX EPC section sizes).</td></tr><tr><td><strong><codeclass="language-plaintext highlighter-rouge notranslate">cpu-security.se.enabled</code></strong></td><td>true</td><td>Set to ‘true' if IBM Secure Execution for Linux (IBM Z & LinuxONE) is available and enabled (requires <codeclass="language-plaintext highlighter-rouge notranslate">/sys/firmware/uv/prot_virt_host</code> facility)</td></tr><tr><td><strong><codeclass="language-plaintext highlighter-rouge notranslate">cpu-security.tdx.enabled</code></strong></td><td>true</td
