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Diffstat (limited to 'man/bootchart.conf.xml')
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diff --git a/man/bootchart.conf.xml b/man/bootchart.conf.xml new file mode 100644 index 0000000000..f8fcfe0103 --- /dev/null +++ b/man/bootchart.conf.xml @@ -0,0 +1,158 @@ +<?xml version='1.0'?> <!--*-nxml-*--> +<?xml-stylesheet type="text/xsl" href="http://docbook.sourceforge.net/release/xsl/current/xhtml/docbook.xsl"?> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" + "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> + +<!-- + This file is part of systemd. + + Copyright 2012 Intel Corporation + + Authors: + Auke Kok <auke-jan.h.kok@intel.com> + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +--> + +<refentry id="bootchart.conf"> + <refentryinfo> + <title>bootchart.conf</title> + <productname>systemd</productname> + + <authorgroup> + <author> + <contrib>Developer</contrib> + <firstname>Auke</firstname> + <surname>Kok</surname> + <email>auke-jan.h.kok@intel.com</email> + </author> + </authorgroup> + </refentryinfo> + + <refmeta> + <refentrytitle>bootchart.conf</refentrytitle> + <manvolnum>5</manvolnum> + </refmeta> + + <refnamediv> + <refname>bootchart.conf</refname> + <refpurpose>Boot performance analysis graphing tool configuration file</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <para><filename>/etc/systemd/bootchart.conf</filename></para> + </refsynopsisdiv> + + <refsect1> + <title>Description</title> + + <para>When starting, systemd-bootchart will read the + configuration file <filename>bootchart.conf</filename>. + This configuration file determines logging parameters and + graph output.</para> + + </refsect1> + + <refsect1> + <title>Options</title> + + <variablelist class='bootchart-directives'> + + <varlistentry> + <term><varname>samples=500</varname></term> + <listitem><para>Configure the amount of samples to + record total before bootchart exits. Each sample will + record at intervals defined by freq=.</para></listitem> + </varlistentry> + + <varlistentry> + <term><varname>freq=25</varname></term> + <listitem><para>Configure the sample log frequency. + This can be a fractional number, but must be larger than + 0.0. Most systems can cope with values under 25-50 without + impacting boot time severely.</para></listitem> + </varlistentry> + + <varlistentry> + <term><varname>rel=0</varname></term> + <listitem><para>Configures whether the left axis of the + output graph equals time=0.0 (CLOCK_MONOTONIC start). This + is useful for using bootchart at post-boot time to profile + an already booted system, otherwise the graph would become + extremely large. If set to a non-zero value, the horizontal + axis starts at the first recorded sample instead of time=0.0. + </para></listitem> + </varlistentry> + + <varlistentry> + <term><varname>filter=0</varname></term> + <listitem><para>Configures whether the resulting graph + should omit tasks that did not contribute significantly + to the boot. Processes that are too short-lived (only + seen in one sample) or that do not consume any significant + CPU time (less than 0.001sec) will not be displayed in + the output graph.</para></listitem> + </varlistentry> + + <varlistentry> + <term><varname>output=[path]</varname></term> + <listitem><para>Configures the output folder for writing + the graphs. By default, bootchart writes the graphs to + <filename>/var/log</filename>.</para></listitem> + </varlistentry> + + <varlistentry> + <term><varname>init=[path]</varname></term> + <listitem><para>Configures bootchart to run a non-standard + binary instead of <filename>/sbin/init</filename>. This + option is only relevant if bootchart was invoked from the + kernel command line with + init=/usr/lib/systemd/systemd-bootchart.</para></listitem> + </varlistentry> + + <varlistentry> + <term><varname>pss=0</varname></term> + <listitem><para>If set to 1, enables logging and graphing + of processes PSS memory consumption.</para></listitem> + </varlistentry> + + <varlistentry> + <term><varname>entropy=0</varname></term> + <listitem><para>If set to 1, enables logging and graphing + of the kernel random entropy pool size.</para></listitem> + </varlistentry> + + <varlistentry> + <term><varname>scale_x=100</varname></term> + <listitem><para>Horizontal scaling factor for all variable + graph components.</para></listitem> + </varlistentry> + + <varlistentry> + <term><varname>scale_y=20</varname></term> + <listitem><para>Vertical scaling factor for all variable + graph components.</para></listitem> + </varlistentry> + + </variablelist> + </refsect1> + + <refsect1> + <title>See Also</title> + <para> + <citerefentry><refentrytitle>systemd-bootchart</refentrytitle><manvolnum>1</manvolnum></citerefentry> + </para> + </refsect1> + +</refentry> |