--- /dev/null
+<?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>
~ianmdlvl / elogind.git / blobdiff