| 1 | <?xml version="1.0" encoding="UTF-8"?>
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| 2 | <!--
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| 3 | manpage, user manual, usage: VBoxManage metrics
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| 4 | -->
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| 5 | <!--
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| 6 | Copyright (C) 2006-2023 Oracle and/or its affiliates.
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| 7 |
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| 8 | This file is part of VirtualBox base platform packages, as
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| 9 | available from https://www.virtualbox.org.
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| 10 |
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| 11 | This program is free software; you can redistribute it and/or
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| 12 | modify it under the terms of the GNU General Public License
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| 13 | as published by the Free Software Foundation, in version 3 of the
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| 14 | License.
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| 15 |
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| 16 | This program is distributed in the hope that it will be useful, but
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| 17 | WITHOUT ANY WARRANTY; without even the implied warranty of
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| 18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 19 | General Public License for more details.
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| 20 |
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| 21 | You should have received a copy of the GNU General Public License
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| 22 | along with this program; if not, see <https://www.gnu.org/licenses>.
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| 23 |
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| 24 | SPDX-License-Identifier: GPL-3.0-only
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| 25 | -->
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| 26 | <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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| 27 | "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd"[
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| 28 | <!ENTITY % all.entities SYSTEM "all-entities.ent">
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| 29 | %all.entities;
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| 30 | ]>
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| 31 | <refentry id="vboxmanage-metrics" lang="en">
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| 32 | <refentryinfo>
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| 33 | <pubdate>$Date: 2023-04-21 02:00:16 +0000 (Fri, 21 Apr 2023) $</pubdate>
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| 34 | <title>VBoxManage metrics</title>
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| 35 | </refentryinfo>
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| 36 |
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| 37 | <refmeta>
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| 38 | <refentrytitle>VBoxManage-metrics</refentrytitle>
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| 39 | <manvolnum>1</manvolnum>
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| 40 | </refmeta>
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| 41 |
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| 42 | <refnamediv>
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| 43 | <refname>VBoxManage-metrics</refname>
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| 44 | <refpurpose>monitor system resource usage</refpurpose>
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| 45 | <refclass>&product-name;</refclass>
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| 46 | </refnamediv>
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| 47 |
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| 48 | <refsynopsisdiv>
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| 49 | <cmdsynopsis id="synopsis-vboxmanage-metrics-collect">
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| 50 | <command>VBoxManage metrics collect</command>
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| 51 | <arg>--detach</arg>
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| 52 | <arg>--list</arg>
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| 53 | <arg>--period=<replaceable>seconds</replaceable></arg>
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| 54 | <arg>--samples=<replaceable>count</replaceable></arg>
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| 55 | <group>
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| 56 | <arg choice="plain">*</arg>
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| 57 | <arg choice="plain">host</arg>
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| 58 | <arg choice="plain"><replaceable>vmname</replaceable> <arg><replaceable>metric-list</replaceable></arg></arg>
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| 59 | </group>
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| 60 | </cmdsynopsis>
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| 61 |
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| 62 | <cmdsynopsis id="synopsis-vboxmanage-metrics-disable">
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| 63 | <command>VBoxManage metrics disable</command>
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| 64 | <arg>--list</arg>
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| 65 | <group>
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| 66 | <arg choice="plain">*</arg>
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| 67 | <arg choice="plain">host</arg>
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| 68 | <arg choice="plain"><replaceable>vmname</replaceable> <arg><replaceable>metric-list</replaceable></arg></arg>
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| 69 | </group>
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| 70 | </cmdsynopsis>
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| 71 |
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| 72 | <cmdsynopsis id="synopsis-vboxmanage-metrics-enable">
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| 73 | <command>VBoxManage metrics enable</command>
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| 74 | <arg>--list</arg>
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| 75 | <group>
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| 76 | <arg choice="plain">*</arg>
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| 77 | <arg choice="plain">host</arg>
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| 78 | <arg choice="plain"><replaceable>vmname</replaceable> <arg><replaceable>metric-list</replaceable></arg></arg>
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| 79 | </group>
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| 80 | </cmdsynopsis>
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| 81 |
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| 82 | <cmdsynopsis id="synopsis-vboxmanage-metrics-list">
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| 83 | <command>VBoxManage metrics list</command>
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| 84 | <group>
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| 85 | <arg choice="plain">*</arg>
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| 86 | <arg choice="plain">host</arg>
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| 87 | <arg choice="plain"><replaceable>vmname</replaceable> <arg><replaceable>metric-list</replaceable></arg></arg>
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| 88 | </group>
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| 89 | </cmdsynopsis>
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| 90 |
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| 91 | <cmdsynopsis id="synopsis-vboxmanage-metrics-query">
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| 92 | <command>VBoxManage metrics query</command>
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| 93 | <group>
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| 94 | <arg choice="plain">*</arg>
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| 95 | <arg choice="plain">host</arg>
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| 96 | <arg choice="plain"><replaceable>vmname</replaceable> <arg><replaceable>metric-list</replaceable></arg></arg>
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| 97 | </group>
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| 98 | </cmdsynopsis>
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| 99 |
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| 100 | <cmdsynopsis id="synopsis-vboxmanage-metrics-setup">
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| 101 | <command>VBoxManage metrics setup</command>
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| 102 | <arg>--list</arg>
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| 103 | <arg>--period <replaceable>seconds</replaceable></arg>
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| 104 | <arg>--samples <replaceable>count</replaceable></arg>
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| 105 | <group>
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| 106 | <arg choice="plain">*</arg>
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| 107 | <arg choice="plain">host</arg>
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| 108 | <arg choice="plain"><replaceable>vmname</replaceable> <arg><replaceable>metric-list</replaceable></arg></arg>
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| 109 | </group>
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| 110 | </cmdsynopsis>
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| 111 | </refsynopsisdiv>
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| 112 |
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| 113 | <refsect1 id="vboxmanage-metrics-description">
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| 114 | <title>Description</title>
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| 115 | <para>
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| 116 | The <command>VBoxManage metrics</command> command enables you to
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| 117 | monitor system resource usage for the host system and for virtual
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| 118 | machines (VMs). For example, you can monitor particular metrics,
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| 119 | such as the percentage of time CPUs spend executing in user mode
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| 120 | (<literal>CPU/Load/User</literal>) over a specified sampling
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| 121 | period.
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| 122 | </para>
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| 123 | <para>
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| 124 | While it runs, the <command>VBoxSVC</command> process collects and
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| 125 | saves the specified metric data internally. The
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| 126 | <command>VBoxSVC</command> process runs until shortly after you
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| 127 | close all VMs and frontends. Use the <command>VBoxManage metrics
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| 128 | query</command> command to retrieve data at any time.
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| 129 | </para>
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| 130 | <para>
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| 131 | By default, metrics are not collected unless you run the
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| 132 | <command>VBoxManage metrics setup</command> command to specify a
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| 133 | sampling interval in seconds and the number of metrics to save.
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| 134 | </para>
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| 135 | <para>
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| 136 | Note that you can enable metric collection only for started VMs.
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| 137 | Collected data and collection settings for a VM are discarded when
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| 138 | the VM shuts down.
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| 139 | </para>
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| 140 | <refsect2 id="vboxmanage-metrics-description-metrics">
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| 141 | <title>Metrics</title>
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| 142 | <para>
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| 143 | The host and VMs have different sets of associated metrics,
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| 144 | which you can view by running the <command>VBoxManage metrics
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| 145 | list</command> command.
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| 146 | </para>
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| 147 | <para>
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| 148 | Each metric is represented as a string that is composed of a
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| 149 | category and a metric. Optionally, the metric string can include
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| 150 | any of the following: a submetric, a sub-submetric, and an
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| 151 | aggregate. The metric string has the following format:
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| 152 | </para>
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| 153 | <screen><replaceable>category</replaceable>/<replaceable>metric</replaceable>[/<replaceable>submetric</replaceable>[/<replaceable>sub-submetric</replaceable>]][:<replaceable>aggregate</replaceable>]</screen>
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| 154 | <itemizedlist>
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| 155 | <listitem><para>
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| 156 | <replaceable>category</replaceable> is the resource type,
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| 157 | such as <literal>CPU</literal>, <literal>RAM</literal>,
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| 158 | <literal>FS</literal>, <literal>Net</literal>.
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| 159 | </para></listitem>
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| 160 | <listitem><para>
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| 161 | <replaceable>metric</replaceable> is a measurement type that
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| 162 | is associated with the resource category. For example, the
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| 163 | <literal>Load</literal> and <literal>MHz</literal> metrics
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| 164 | are associated with the <literal>CPU</literal> resource
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| 165 | category.
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| 166 | </para></listitem>
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| 167 | <listitem><para>
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| 168 | <replaceable>submetric</replaceable> is an optional
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| 169 | measurement type that is associated with the metric. For
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| 170 | example, the <literal>User</literal>,
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| 171 | <literal>Kernel</literal>, and <literal>Idle</literal>
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| 172 | submetrics are associated with the <literal>Load</literal>
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| 173 | metric.
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| 174 | </para></listitem>
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| 175 | <listitem><para>
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| 176 | <replaceable>sub-submetric</replaceable> is an optional
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| 177 | measurement type that is associated with the submetric. For
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| 178 | example, the <literal>Rx</literal> and <literal>Tx</literal>
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| 179 | sub-submetrics are associated with the
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| 180 | <literal>Rate</literal> submetric of the
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| 181 | <literal>Net</literal> resource category. The associated
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| 182 | metric is the network interface.
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| 183 | </para></listitem>
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| 184 | <listitem><para>
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| 185 | <replaceable>aggregate</replaceable> is an optional function
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| 186 | to provide minimum, maximum, and average measurements for a
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| 187 | resource category. For example, the
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| 188 | <literal>RAM/Usage/Free:min</literal> metric represents the
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| 189 | minimum amount of available memory found in all saved data
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| 190 | on the host system.
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| 191 | </para></listitem>
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| 192 | </itemizedlist>
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| 193 | <para>
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| 194 | By default, the <command>VBoxManage metrics</command> commands
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| 195 | operate on the host system and all VMs, and report on all
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| 196 | metrics. You can optionally limit these commands to operate on
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| 197 | the host system or on a particular VM, and report on a list of
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| 198 | one or more metrics.
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| 199 | </para>
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| 200 | </refsect2>
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| 201 | <refsect2 id="vboxmanage-metrics-common-options">
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| 202 | <title>Common Options</title>
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| 203 | <variablelist>
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| 204 | <varlistentry>
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| 205 | <term><literal>*</literal> | <literal>host</literal> | <replaceable>vmname</replaceable></term>
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| 206 | <listitem><para>
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| 207 | Specifies the component on which to operate. By default,
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| 208 | this command operates on the host system and all running
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| 209 | VMs.
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| 210 | </para><para>
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| 211 | If you specify <literal>host</literal>, the
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| 212 | <command>VBoxManage metrics</command> command operates on
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| 213 | the host system only. If you specify an asterisk
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| 214 | (<literal>*</literal>), the command operates on all VMs.
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| 215 | If you specify the name of a VM, the <command>VBoxManage
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| 216 | metrics</command> command operates on that VM.
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| 217 | </para></listitem>
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| 218 | </varlistentry>
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| 219 | <varlistentry>
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| 220 | <term><replaceable>metric-list</replaceable></term>
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| 221 | <listitem><para>
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| 222 | Specifies a comma-separated list of one or more metrics.
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| 223 | </para><para>
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| 224 | The form of the metric must include the
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| 225 | <replaceable>category</replaceable> and
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| 226 | <replaceable>metric</replaceable> part of the metric
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| 227 | string separated by a slash.
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| 228 | </para><para>
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| 229 | Note that the <command>VBoxManage metrics enable</command>
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| 230 | and <command>VBoxManage metrics disable</command> commands
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| 231 | require that you specify metrics as parameters. The
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| 232 | metrics must include only the resource category and metric
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| 233 | part, such as <literal>CPU/Load</literal> and
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| 234 | <literal>RAM/Usage</literal>.
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| 235 | </para></listitem>
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| 236 | </varlistentry>
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| 237 | </variablelist>
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| 238 | </refsect2>
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| 239 | <refsect2 id="vboxmanage-metrics-collect">
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| 240 | <title>Collect Data Metrics</title>
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| 241 | <remark role="help-copy-synopsis"/>
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| 242 | <para>
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| 243 | The <command>VBoxManage metrics collect</command> command
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| 244 | collects and outputs data periodically until you stop the
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| 245 | process by pressing Ctrl+C.
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| 246 | </para>
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| 247 | <variablelist>
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| 248 | <varlistentry>
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| 249 | <term><option>--detach</option></term>
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| 250 | <listitem><para>
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| 251 | Disables the collection of metric data, so no data is
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| 252 | output. Using this option is the same as running the
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| 253 | <command>VBoxManage metrics setup</command> command.
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| 254 | </para></listitem>
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| 255 | </varlistentry>
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| 256 | <varlistentry>
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| 257 | <term><option>--list</option></term>
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| 258 | <listitem><para>
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| 259 | Shows which metrics match the specified filter.
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| 260 | </para></listitem>
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| 261 | </varlistentry>
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| 262 | <varlistentry>
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| 263 | <term><option>--period=<replaceable>seconds</replaceable></option></term>
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| 264 | <listitem><para>
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| 265 | Specifies the number of seconds to wait between collecting
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| 266 | metric data samples. The default value is 1.
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| 267 | </para></listitem>
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| 268 | </varlistentry>
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| 269 | <varlistentry>
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| 270 | <term><option>--samples=<replaceable>count</replaceable></option></term>
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| 271 | <listitem><para>
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| 272 | Specifies the number of metric data samples to save. To
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| 273 | view the saved data, use the <command>VBoxManage metrics
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| 274 | query</command> command. The default value is 1.
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| 275 | </para></listitem>
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| 276 | </varlistentry>
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| 277 | </variablelist>
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| 278 | </refsect2>
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| 279 | <refsect2 id="vboxmanage-metrics-disable">
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| 280 | <title>Disable Metric Data Collection</title>
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| 281 | <remark role="help-copy-synopsis"/>
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| 282 | <para>
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| 283 | The <command>VBoxManage metrics disable</command> command
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| 284 | suspends data collection. This action does not affect the data
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| 285 | collection properties or the collected data. Note that
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| 286 | specifying a submetric in the metric list does not disable its
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| 287 | underlying metrics.
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| 288 | </para>
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| 289 | <para>
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| 290 | Note that the <command>VBoxManage metrics disable</command>
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| 291 | command requires that you specify metrics as parameters. The
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| 292 | metrics must include only the resource category and metric part,
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| 293 | such as <literal>CPU/Load</literal> and
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| 294 | <literal>RAM/Usage</literal>.
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| 295 | </para>
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| 296 | <variablelist>
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| 297 | <varlistentry>
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| 298 | <term><option>--list</option></term>
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| 299 | <listitem><para>
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| 300 | Shows whether the command succeeded as expected.
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| 301 | </para></listitem>
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| 302 | </varlistentry>
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| 303 | </variablelist>
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| 304 | </refsect2>
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| 305 | <refsect2 id="vboxmanage-metrics-enable">
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| 306 | <title>Enable Metric Data Collection</title>
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| 307 | <remark role="help-copy-synopsis"/>
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| 308 | <para>
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| 309 | The <command>VBoxManage metrics enable</command> command resumes
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| 310 | data collection after it has been suspended by using the
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| 311 | <command>VBoxManage metrics disable</command> command. Note that
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| 312 | specifying a submetric in the metric list does not enable its
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| 313 | underlying metrics.
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| 314 | </para>
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| 315 | <para>
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| 316 | Unlike the <command>VBoxManage metrics setup</command> command,
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| 317 | the <command>VBoxManage metrics enable</command> command does
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| 318 | not discard previously collected samples for the specified set
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| 319 | of objects and metrics.
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| 320 | </para>
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| 321 | <para>
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| 322 | Note that the <command>VBoxManage metrics enable</command>
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| 323 | command requires that you specify metrics as parameters. The
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| 324 | metrics must include only the resource category and metric part,
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| 325 | such as <literal>CPU/Load</literal> and
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| 326 | <literal>RAM/Usage</literal>.
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| 327 | </para>
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| 328 | <variablelist>
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| 329 | <varlistentry>
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| 330 | <term><option>--list</option></term>
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| 331 | <listitem><para>
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| 332 | Shows whether the command succeeded as expected.
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| 333 | </para></listitem>
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| 334 | </varlistentry>
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| 335 | </variablelist>
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| 336 | </refsect2>
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| 337 | <refsect2 id="vboxmanage-metrics-list">
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| 338 | <title>List Metric Values</title>
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| 339 | <remark role="help-copy-synopsis"/>
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| 340 | <para>
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| 341 | The <command>VBoxManage metrics list</command> command shows the
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| 342 | metrics that are currently available. Note that VM-specific
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| 343 | metrics are shown only when that VM is running.
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| 344 | </para>
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| 345 | </refsect2>
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| 346 | <refsect2 id="vboxmanage-metrics-query">
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| 347 | <title>List Saved Metric Data</title>
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| 348 | <remark role="help-copy-synopsis"/>
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| 349 | <para>
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| 350 | The <command>VBoxManage metrics query</command> command
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| 351 | retrieves and shows the saved metric data.
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| 352 | </para>
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| 353 | <para>
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| 354 | Note that the <command>VBoxManage metrics query</command>
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| 355 | command does not remove or flush saved data but older samples
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| 356 | are replaced by newer samples over time.
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| 357 | </para>
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| 358 | </refsect2>
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| 359 | <refsect2 id="vboxmanage-metrics-setup">
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| 360 | <title>Configure Metric-Gathering Properties</title>
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| 361 | <remark role="help-copy-synopsis"/>
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| 362 | <para>
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| 363 | The <command>VBoxManage metrics setup</command> command
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| 364 | configures metric-gathering properties.
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| 365 | </para>
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| 366 | <para>
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| 367 | Note that this command discards any previously collected samples
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| 368 | for the specified set of objects and metrics. To enable or
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| 369 | disable metrics collection without discarding the data, use the
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| 370 | <command>VBoxManage metrics enable</command> command or the
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| 371 | <command>VBoxManage metrics disable</command> command,
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| 372 | respectively.
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| 373 | </para>
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| 374 | <variablelist>
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| 375 | <varlistentry>
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| 376 | <term><option>--list</option></term>
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| 377 | <listitem><para>
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| 378 | Shows which metrics have been modified as a result of the
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| 379 | command execution.
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| 380 | </para></listitem>
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| 381 | </varlistentry>
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| 382 | <varlistentry>
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| 383 | <term><option>--period=<replaceable>seconds</replaceable></option></term>
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| 384 | <listitem><para>
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| 385 | Specifies the number of seconds to wait between collecting
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| 386 | metric data samples. The default value is 1.
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| 387 | </para></listitem>
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| 388 | </varlistentry>
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| 389 | <varlistentry>
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| 390 | <term><option>--samples=<replaceable>count</replaceable></option></term>
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| 391 | <listitem><para>
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| 392 | Specifies the number of metric data samples to save. To
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| 393 | view the saved data, use the <command>VBoxManage metrics
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| 394 | query</command> command. The default value is 1.
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| 395 | </para></listitem>
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| 396 | </varlistentry>
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| 397 | </variablelist>
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| 398 | </refsect2>
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| 399 | </refsect1>
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| 400 |
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| 401 | <refsect1 id="vboxmanage-metrics-examples">
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| 402 | <title>Examples</title>
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| 403 | <remark role="help-scope" condition="GLOBAL"/>
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| 404 | <para>
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| 405 | The following example command enables the collection of host
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| 406 | processor and memory usage metrics every second. The
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| 407 | <option>--samples</option> option saves the five latest samples.
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| 408 | </para>
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| 409 | <screen>$ VBoxManage metrics setup --period 1 --samples 5 host CPU/Load,RAM/Usage</screen>
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| 410 | <para>
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| 411 | The following command lists the metrics that are available to the
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| 412 | host system and VMs:
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| 413 | </para>
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| 414 | <screen>$ VBoxManage metrics list</screen>
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| 415 | <para>
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| 416 | Note that the host system and VMs have different sets of metrics.
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| 417 | </para>
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| 418 | <para>
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| 419 | The following example shows how to query metric data about the CPU
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| 420 | time spent in user and kernel modes for the
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| 421 | <literal>test</literal> VM:
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| 422 | </para>
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| 423 | <screen>$ VBoxManage metrics query test CPU/Load/User,CPU/Load/Kernel</screen>
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| 424 | </refsect1>
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| 425 | </refentry>
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