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1019 lines
25 KiB
HTML
1019 lines
25 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
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"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
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<head>
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<meta http-equiv="Content-Type" content="application/xhtml+xml; charset=UTF-8" />
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<meta name="generator" content="AsciiDoc 8.6.9" />
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<title>cset(1)</title>
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<style type="text/css">
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/* Shared CSS for AsciiDoc xhtml11 and html5 backends */
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/* Default font. */
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body {
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font-family: Georgia,serif;
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}
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/* Title font. */
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h1, h2, h3, h4, h5, h6,
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div.title, caption.title,
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thead, p.table.header,
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#toctitle,
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#author, #revnumber, #revdate, #revremark,
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#footer {
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font-family: Arial,Helvetica,sans-serif;
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}
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body {
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margin: 1em 5% 1em 5%;
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}
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a {
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color: blue;
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text-decoration: underline;
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}
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a:visited {
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color: fuchsia;
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}
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em {
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font-style: italic;
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color: navy;
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}
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strong {
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font-weight: bold;
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color: #083194;
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}
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h1, h2, h3, h4, h5, h6 {
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color: #527bbd;
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margin-top: 1.2em;
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margin-bottom: 0.5em;
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line-height: 1.3;
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}
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h1, h2, h3 {
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border-bottom: 2px solid silver;
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}
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h2 {
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padding-top: 0.5em;
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}
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h3 {
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float: left;
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}
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h3 + * {
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clear: left;
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}
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h5 {
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font-size: 1.0em;
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}
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div.sectionbody {
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margin-left: 0;
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}
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hr {
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border: 1px solid silver;
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}
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p {
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margin-top: 0.5em;
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margin-bottom: 0.5em;
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}
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ul, ol, li > p {
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margin-top: 0;
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}
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ul > li { color: #aaa; }
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ul > li > * { color: black; }
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.monospaced, code, pre {
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font-family: "Courier New", Courier, monospace;
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font-size: inherit;
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color: navy;
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padding: 0;
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margin: 0;
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}
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pre {
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white-space: pre-wrap;
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}
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#author {
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color: #527bbd;
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font-weight: bold;
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font-size: 1.1em;
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}
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#email {
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}
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#revnumber, #revdate, #revremark {
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}
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#footer {
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font-size: small;
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border-top: 2px solid silver;
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padding-top: 0.5em;
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margin-top: 4.0em;
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}
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#footer-text {
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float: left;
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padding-bottom: 0.5em;
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}
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#footer-badges {
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float: right;
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padding-bottom: 0.5em;
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}
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#preamble {
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margin-top: 1.5em;
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margin-bottom: 1.5em;
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}
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div.imageblock, div.exampleblock, div.verseblock,
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div.quoteblock, div.literalblock, div.listingblock, div.sidebarblock,
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div.admonitionblock {
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margin-top: 1.0em;
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margin-bottom: 1.5em;
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}
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div.admonitionblock {
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margin-top: 2.0em;
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margin-bottom: 2.0em;
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margin-right: 10%;
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color: #606060;
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}
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div.content { /* Block element content. */
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padding: 0;
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}
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/* Block element titles. */
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div.title, caption.title {
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color: #527bbd;
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font-weight: bold;
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text-align: left;
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margin-top: 1.0em;
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margin-bottom: 0.5em;
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}
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div.title + * {
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margin-top: 0;
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}
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td div.title:first-child {
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margin-top: 0.0em;
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}
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div.content div.title:first-child {
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margin-top: 0.0em;
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}
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div.content + div.title {
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margin-top: 0.0em;
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}
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div.sidebarblock > div.content {
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background: #ffffee;
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border: 1px solid #dddddd;
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border-left: 4px solid #f0f0f0;
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padding: 0.5em;
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}
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div.listingblock > div.content {
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border: 1px solid #dddddd;
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border-left: 5px solid #f0f0f0;
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background: #f8f8f8;
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padding: 0.5em;
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}
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div.quoteblock, div.verseblock {
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padding-left: 1.0em;
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margin-left: 1.0em;
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margin-right: 10%;
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border-left: 5px solid #f0f0f0;
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color: #888;
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}
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div.quoteblock > div.attribution {
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padding-top: 0.5em;
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text-align: right;
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}
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div.verseblock > pre.content {
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font-family: inherit;
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font-size: inherit;
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}
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div.verseblock > div.attribution {
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padding-top: 0.75em;
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text-align: left;
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}
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/* DEPRECATED: Pre version 8.2.7 verse style literal block. */
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div.verseblock + div.attribution {
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text-align: left;
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}
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div.admonitionblock .icon {
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vertical-align: top;
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font-size: 1.1em;
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font-weight: bold;
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text-decoration: underline;
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color: #527bbd;
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padding-right: 0.5em;
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}
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div.admonitionblock td.content {
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padding-left: 0.5em;
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border-left: 3px solid #dddddd;
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}
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div.exampleblock > div.content {
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border-left: 3px solid #dddddd;
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padding-left: 0.5em;
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}
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div.imageblock div.content { padding-left: 0; }
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span.image img { border-style: none; vertical-align: text-bottom; }
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a.image:visited { color: white; }
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dl {
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margin-top: 0.8em;
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margin-bottom: 0.8em;
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}
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dt {
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margin-top: 0.5em;
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margin-bottom: 0;
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font-style: normal;
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color: navy;
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}
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dd > *:first-child {
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margin-top: 0.1em;
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}
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ul, ol {
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list-style-position: outside;
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}
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ol.arabic {
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list-style-type: decimal;
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}
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ol.loweralpha {
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list-style-type: lower-alpha;
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}
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ol.upperalpha {
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list-style-type: upper-alpha;
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}
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ol.lowerroman {
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list-style-type: lower-roman;
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}
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ol.upperroman {
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list-style-type: upper-roman;
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}
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div.compact ul, div.compact ol,
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div.compact p, div.compact p,
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div.compact div, div.compact div {
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margin-top: 0.1em;
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margin-bottom: 0.1em;
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}
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tfoot {
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font-weight: bold;
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}
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td > div.verse {
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white-space: pre;
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}
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div.hdlist {
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margin-top: 0.8em;
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margin-bottom: 0.8em;
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}
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div.hdlist tr {
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padding-bottom: 15px;
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}
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dt.hdlist1.strong, td.hdlist1.strong {
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font-weight: bold;
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}
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td.hdlist1 {
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vertical-align: top;
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font-style: normal;
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padding-right: 0.8em;
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color: navy;
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}
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td.hdlist2 {
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vertical-align: top;
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}
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div.hdlist.compact tr {
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margin: 0;
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padding-bottom: 0;
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}
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.comment {
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background: yellow;
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}
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.footnote, .footnoteref {
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font-size: 0.8em;
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}
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span.footnote, span.footnoteref {
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vertical-align: super;
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}
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#footnotes {
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margin: 20px 0 20px 0;
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padding: 7px 0 0 0;
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}
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#footnotes div.footnote {
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margin: 0 0 5px 0;
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}
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#footnotes hr {
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border: none;
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border-top: 1px solid silver;
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height: 1px;
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text-align: left;
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margin-left: 0;
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width: 20%;
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min-width: 100px;
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}
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div.colist td {
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padding-right: 0.5em;
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padding-bottom: 0.3em;
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vertical-align: top;
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}
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div.colist td img {
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margin-top: 0.3em;
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}
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@media print {
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#footer-badges { display: none; }
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}
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#toc {
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margin-bottom: 2.5em;
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}
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#toctitle {
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color: #527bbd;
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font-size: 1.1em;
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font-weight: bold;
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margin-top: 1.0em;
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margin-bottom: 0.1em;
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}
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div.toclevel0, div.toclevel1, div.toclevel2, div.toclevel3, div.toclevel4 {
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margin-top: 0;
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margin-bottom: 0;
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}
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div.toclevel2 {
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margin-left: 2em;
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font-size: 0.9em;
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}
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div.toclevel3 {
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margin-left: 4em;
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font-size: 0.9em;
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}
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div.toclevel4 {
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margin-left: 6em;
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font-size: 0.9em;
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}
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span.aqua { color: aqua; }
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span.black { color: black; }
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span.blue { color: blue; }
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span.fuchsia { color: fuchsia; }
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span.gray { color: gray; }
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span.green { color: green; }
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span.lime { color: lime; }
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span.maroon { color: maroon; }
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span.navy { color: navy; }
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span.olive { color: olive; }
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span.purple { color: purple; }
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span.red { color: red; }
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span.silver { color: silver; }
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span.teal { color: teal; }
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span.white { color: white; }
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span.yellow { color: yellow; }
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span.aqua-background { background: aqua; }
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span.black-background { background: black; }
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span.blue-background { background: blue; }
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span.fuchsia-background { background: fuchsia; }
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span.gray-background { background: gray; }
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span.green-background { background: green; }
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span.lime-background { background: lime; }
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span.maroon-background { background: maroon; }
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span.navy-background { background: navy; }
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span.olive-background { background: olive; }
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span.purple-background { background: purple; }
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span.red-background { background: red; }
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span.silver-background { background: silver; }
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span.teal-background { background: teal; }
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span.white-background { background: white; }
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span.yellow-background { background: yellow; }
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span.big { font-size: 2em; }
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span.small { font-size: 0.6em; }
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span.underline { text-decoration: underline; }
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span.overline { text-decoration: overline; }
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span.line-through { text-decoration: line-through; }
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div.unbreakable { page-break-inside: avoid; }
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/*
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* xhtml11 specific
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*
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* */
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div.tableblock {
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margin-top: 1.0em;
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margin-bottom: 1.5em;
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}
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div.tableblock > table {
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border: 3px solid #527bbd;
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}
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thead, p.table.header {
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font-weight: bold;
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color: #527bbd;
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}
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p.table {
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margin-top: 0;
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}
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/* Because the table frame attribute is overriden by CSS in most browsers. */
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div.tableblock > table[frame="void"] {
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border-style: none;
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}
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div.tableblock > table[frame="hsides"] {
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border-left-style: none;
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border-right-style: none;
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}
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div.tableblock > table[frame="vsides"] {
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border-top-style: none;
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border-bottom-style: none;
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}
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/*
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* html5 specific
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*
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* */
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table.tableblock {
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margin-top: 1.0em;
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margin-bottom: 1.5em;
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}
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thead, p.tableblock.header {
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font-weight: bold;
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color: #527bbd;
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}
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p.tableblock {
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margin-top: 0;
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}
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table.tableblock {
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border-width: 3px;
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border-spacing: 0px;
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border-style: solid;
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border-color: #527bbd;
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border-collapse: collapse;
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}
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th.tableblock, td.tableblock {
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border-width: 1px;
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padding: 4px;
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border-style: solid;
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border-color: #527bbd;
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}
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table.tableblock.frame-topbot {
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border-left-style: hidden;
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border-right-style: hidden;
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}
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table.tableblock.frame-sides {
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border-top-style: hidden;
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border-bottom-style: hidden;
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}
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table.tableblock.frame-none {
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border-style: hidden;
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}
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th.tableblock.halign-left, td.tableblock.halign-left {
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text-align: left;
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}
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th.tableblock.halign-center, td.tableblock.halign-center {
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text-align: center;
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}
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th.tableblock.halign-right, td.tableblock.halign-right {
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text-align: right;
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}
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|
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th.tableblock.valign-top, td.tableblock.valign-top {
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vertical-align: top;
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}
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|
th.tableblock.valign-middle, td.tableblock.valign-middle {
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vertical-align: middle;
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}
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|
th.tableblock.valign-bottom, td.tableblock.valign-bottom {
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vertical-align: bottom;
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}
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|
|
|
|
|
/*
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* manpage specific
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|
*
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* */
|
|
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body.manpage h1 {
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padding-top: 0.5em;
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padding-bottom: 0.5em;
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border-top: 2px solid silver;
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border-bottom: 2px solid silver;
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}
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|
body.manpage h2 {
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border-style: none;
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}
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|
body.manpage div.sectionbody {
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margin-left: 3em;
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}
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@media print {
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body.manpage div#toc { display: none; }
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}
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|
|
|
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</style>
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|
<script type="text/javascript">
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|
/*<+'])');
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// Function that scans the DOM tree for header elements (the DOM2
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// nodeIterator API would be a better technique but not supported by all
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|
// browsers).
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var iterate = function (el) {
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|
for (var i = el.firstChild; i != null; i = i.nextSibling) {
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if (i.nodeType == 1 /* Node.ELEMENT_NODE */) {
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var mo = re.exec(i.tagName);
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if (mo && (i.getAttribute("class") || i.getAttribute("className")) != "float") {
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result[result.length] = new TocEntry(i, getText(i), mo[1]-1);
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}
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iterate(i);
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}
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|
}
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|
}
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|
iterate(el);
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return result;
|
|
}
|
|
|
|
var toc = document.getElementById("toc");
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if (!toc) {
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return;
|
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}
|
|
|
|
// Delete existing TOC entries in case we're reloading the TOC.
|
|
var tocEntriesToRemove = [];
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var i;
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for (i = 0; i < toc.childNodes.length; i++) {
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var entry = toc.childNodes[i];
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|
if (entry.nodeName.toLowerCase() == 'div'
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&& entry.getAttribute("class")
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&& entry.getAttribute("class").match(/^toclevel/))
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tocEntriesToRemove.push(entry);
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}
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|
for (i = 0; i < tocEntriesToRemove.length; i++) {
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toc.removeChild(tocEntriesToRemove[i]);
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|
}
|
|
|
|
// Rebuild TOC entries.
|
|
var entries = tocEntries(document.getElementById("content"), toclevels);
|
|
for (var i = 0; i < entries.length; ++i) {
|
|
var entry = entries[i];
|
|
if (entry.element.id == "")
|
|
entry.element.id = "_toc_" + i;
|
|
var a = document.createElement("a");
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|
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</head>
|
|
<body class="manpage">
|
|
<div id="header">
|
|
<h1>
|
|
cset(1) Manual Page
|
|
</h1>
|
|
<h2>NAME</h2>
|
|
<div class="sectionbody">
|
|
<p>cset -
|
|
manage cpusets functions in the Linux kernel
|
|
</p>
|
|
</div>
|
|
</div>
|
|
<div id="content">
|
|
<div class="sect1">
|
|
<h2 id="_synopsis">SYNOPSIS</h2>
|
|
<div class="sectionbody">
|
|
<div class="verseblock">
|
|
<pre class="content"><em>cset</em> [--version | --help | --tohex]
|
|
<em>cset</em> [help <command> | <command> --help]
|
|
<em>cset</em> [cset options] <command> [command options] [args]</pre>
|
|
<div class="attribution">
|
|
</div></div>
|
|
</div>
|
|
</div>
|
|
<div class="sect1">
|
|
<h2 id="_description">DESCRIPTION</h2>
|
|
<div class="sectionbody">
|
|
<div class="admonitionblock">
|
|
<table><tr>
|
|
<td class="icon">
|
|
<div class="title">Note</div>
|
|
</td>
|
|
<td class="content">In general, you need to have root permissions to run cset. The
|
|
tool mounts the cpusets filesystem and manipulates it. Non-root users
|
|
do not have permission for these actions.</td>
|
|
</tr></table>
|
|
</div>
|
|
<div class="paragraph"><p>Cset is a Python application to make using the cpusets facilities in
|
|
the Linux kernel easier. The actual included command is called <em>cset</em>
|
|
and it allows manipulation of cpusets on the system and provides
|
|
higher level functions such as implementation and control of a basic
|
|
cpu shielding setup.</p></div>
|
|
<div class="sect2">
|
|
<h3 id="_typical_uses_of_cset_include">Typical uses of cset include</h3>
|
|
<div class="dlist"><dl>
|
|
<dt class="hdlist1">
|
|
Setting up and managing a simple shielded CPU environment
|
|
</dt>
|
|
<dd>
|
|
<p>
|
|
The concept of <em>shielded</em> cpus is that a certain number of
|
|
cpus are partitioned off on the system and only processes that
|
|
are of interest are run on these cpus (i.e., inside the shield).
|
|
</p>
|
|
<div class="paragraph"><p>For a simple shielded configuration, one typically uses three cpusets:
|
|
the root set, a system set and a user set. <em>Cset</em> includes a super
|
|
command that implements this strategy and lets you easily manage it.
|
|
See <em>cset-shield(1)</em> for more details.</p></div>
|
|
</dd>
|
|
<dt class="hdlist1">
|
|
Setting up and managing a complex shielding environment
|
|
</dt>
|
|
<dd>
|
|
<p>
|
|
Shielding can be more complex of course where concepts such as
|
|
priority cpusets and intersecting cpuset can be used. You can
|
|
use <em>cset</em> to help manage this type of shielding as well. You
|
|
will need to use the <em>cset-set(1)</em> and <em>cset-proc(1)</em>
|
|
subcommands directly to do that.
|
|
</p>
|
|
</dd>
|
|
<dt class="hdlist1">
|
|
Managing cpusets on the system
|
|
</dt>
|
|
<dd>
|
|
<p>
|
|
The cset subcommand <em>cset-set(1)</em> allows you to create and
|
|
destroy arbitrary cpusets on the system and assign arbitrary
|
|
cpus and memory nodes to them. The cpusets so created have to
|
|
follow the Linux kernel cpuset rules. See the <em>cset-set(1)</em>
|
|
subcommand for more details.
|
|
</p>
|
|
</dd>
|
|
<dt class="hdlist1">
|
|
Managing processes that run on various system cpusets
|
|
</dt>
|
|
<dd>
|
|
<p>
|
|
The cset subcommand <em>cset-proc(1)</em> allows you to manage
|
|
processes running on various cpusets created on the system.
|
|
You can exec new processes in specific cpusets and move tasks
|
|
around existing cpusets. See the <em>cset-proc(1)</em> subcommand
|
|
for more details.
|
|
</p>
|
|
</dd>
|
|
</dl></div>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
<div class="sect1">
|
|
<h2 id="_options">OPTIONS</h2>
|
|
<div class="sectionbody">
|
|
<div class="paragraph"><p>The following generic option flags are available. Additional options
|
|
are available per-command, and documented in the command-specific
|
|
documentation.</p></div>
|
|
<div class="dlist"><dl>
|
|
<dt class="hdlist1">
|
|
<em>cset</em> --version
|
|
</dt>
|
|
<dd>
|
|
<p>
|
|
Display version information and exits.
|
|
</p>
|
|
</dd>
|
|
<dt class="hdlist1">
|
|
<em>cset</em> --help
|
|
</dt>
|
|
<dd>
|
|
<p>
|
|
Prints the synopsis and a list of all commands.
|
|
</p>
|
|
</dd>
|
|
<dt class="hdlist1">
|
|
<em>cset</em> --log <filename>
|
|
</dt>
|
|
<dd>
|
|
<p>
|
|
Creates a log file for the current run. All manner of useful
|
|
information is stored in this file. This is usually used to
|
|
debug cset when things don’t go as planned.
|
|
</p>
|
|
</dd>
|
|
<dt class="hdlist1">
|
|
<em>cset</em> --machine
|
|
</dt>
|
|
<dd>
|
|
<p>
|
|
Makes cset output information for all operations in a format
|
|
that is machine readable (i.e. easy to parse).
|
|
</p>
|
|
</dd>
|
|
<dt class="hdlist1">
|
|
<em>cset</em> --tohex <CPUSPEC>
|
|
</dt>
|
|
<dd>
|
|
<p>
|
|
Converts a CPUSPEC (see <em>cset-set(1)</em> for definition) to a
|
|
hexadecimal number and outputs it. Useful for setting IRQ
|
|
stub affinity to a cpuset definition.
|
|
</p>
|
|
</dd>
|
|
</dl></div>
|
|
</div>
|
|
</div>
|
|
<div class="sect1">
|
|
<h2 id="_cset_commands">CSET COMMANDS</h2>
|
|
<div class="sectionbody">
|
|
<div class="paragraph"><p>The cset commands are divided into groups, according to the primary
|
|
purpose of those commands. Following is a short description of each
|
|
command. A more detailed description is available in individual
|
|
command manpages. Those manpages are named <em>cset-<command>(1)</em>. The
|
|
first command, <em>help</em>, is especially useful as it prints out a long
|
|
summary of what a particular command does.</p></div>
|
|
<div class="dlist"><dl>
|
|
<dt class="hdlist1">
|
|
<em>cset help command</em>
|
|
</dt>
|
|
<dd>
|
|
<p>
|
|
print out a lengthy summary of how the specified subcommand
|
|
works
|
|
</p>
|
|
</dd>
|
|
<dt class="hdlist1">
|
|
<em>cset command --help</em>
|
|
</dt>
|
|
<dd>
|
|
<p>
|
|
print out an extended synopsis of the specified subcommand
|
|
</p>
|
|
</dd>
|
|
<dt class="hdlist1">
|
|
<em>cset shield</em>
|
|
</dt>
|
|
<dd>
|
|
<p>
|
|
supercommand to set up and manage basic shielding (see
|
|
<em>cset-shield(1)</em>)
|
|
</p>
|
|
</dd>
|
|
<dt class="hdlist1">
|
|
<em>cset set</em>
|
|
</dt>
|
|
<dd>
|
|
<p>
|
|
create, modify and destroy cpusets (see <em>cset-set(1)</em>)
|
|
</p>
|
|
</dd>
|
|
<dt class="hdlist1">
|
|
<em>cset proc</em>
|
|
</dt>
|
|
<dd>
|
|
<p>
|
|
create and manage processes within cpusets (see
|
|
<em>cset-proc(1)</em>)
|
|
</p>
|
|
</dd>
|
|
</dl></div>
|
|
</div>
|
|
</div>
|
|
<div class="sect1">
|
|
<h2 id="_persistent_cpusets">PERSISTENT CPUSETS</h2>
|
|
<div class="sectionbody">
|
|
<div class="paragraph"><p>To create a persistent cpuset setup, i.e. one that survives a reboot,
|
|
you need to create the file <em>/etc/init.d/cset</em>. This distribuition of
|
|
cset includes an example cset init.d file found in
|
|
<em>/usr/share/doc/pacakges/cpuset</em> which is called <em>cset.init.d</em>. You
|
|
will need to alter the file to your specifications and copy it to be
|
|
the file <em>/etc/init.d/cset</em>. See the comments in that file for more
|
|
details.</p></div>
|
|
</div>
|
|
</div>
|
|
<div class="sect1">
|
|
<h2 id="_files">FILES</h2>
|
|
<div class="sectionbody">
|
|
<div class="paragraph"><p>If used, the init.d script <em>/etc/init.d/cset</em> starts and stops a
|
|
cpuset configuration on boot and poweroff.</p></div>
|
|
<div class="paragraph"><p>Cpuset uses a configuration file if present on the system. The file
|
|
is <em>/etc/cset.conf</em> and may contain the following options.</p></div>
|
|
<div class="dlist"><dl>
|
|
<dt class="hdlist1">
|
|
mountpoint = <directory_name>
|
|
</dt>
|
|
<dd>
|
|
<p>
|
|
Specify the mountpoint where the cpuset filesystem is to be
|
|
mounted. By default this is <em>/cpusets</em>; however, some people
|
|
prefer to mount this in the more traditional <em>/dev/cpusets</em>.
|
|
</p>
|
|
</dd>
|
|
</dl></div>
|
|
</div>
|
|
</div>
|
|
<div class="sect1">
|
|
<h2 id="_license">LICENSE</h2>
|
|
<div class="sectionbody">
|
|
<div class="paragraph"><p>Cpuset is licensed under the GNU GPL V2 only.</p></div>
|
|
</div>
|
|
</div>
|
|
<div class="sect1">
|
|
<h2 id="_copyright">COPYRIGHT</h2>
|
|
<div class="sectionbody">
|
|
<div class="paragraph"><p>Copyright (c) 2008-2011 Novell Inc.</p></div>
|
|
</div>
|
|
</div>
|
|
<div class="sect1">
|
|
<h2 id="_author">AUTHOR</h2>
|
|
<div class="sectionbody">
|
|
<div class="paragraph"><p>Written by Alex Tsariounov <tsariounov@gmail.com></p></div>
|
|
<div class="paragraph"><p>Some substrate code and ideas were taken from the excellent Stacked
|
|
GIT (stgit) v0.13 (see http://gna.org/projects/stgit and
|
|
http://www.procode.org/stgit). Stacked GIT is under GPL V2 or later.</p></div>
|
|
</div>
|
|
</div>
|
|
<div class="sect1">
|
|
<h2 id="_see_also">SEE ALSO</h2>
|
|
<div class="sectionbody">
|
|
<div class="paragraph"><p>cset-set(1), cset-proc(1), cset-shield(1)</p></div>
|
|
<div class="paragraph"><p>/usr/share/doc/packages/cpuset/html/tutorial.html</p></div>
|
|
<div class="paragraph"><p>/usr/share/doc/packages/cpuset/cset.init.d</p></div>
|
|
<div class="paragraph"><p>taskset(1), chrt(1)</p></div>
|
|
<div class="paragraph"><p>/usr/src/linux/Documentation/cpusets.txt</p></div>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
<div id="footnotes"><hr /></div>
|
|
<div id="footer">
|
|
<div id="footer-text">
|
|
Version 1.5.8<br />
|
|
Last updated
|
|
2017-12-06 10:59:31 CET
|
|
</div>
|
|
</div>
|
|
</body>
|
|
</html>
|