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12b42c7667
This did not really work out as we had hoped. Trying to do this upstream introduced several problems that probably makes it better suited as a downstream patch after all. At any rate, it is not releaseable in the current state, so we at least need to revert this before the release. * by adjusting the path to binaries, but not do the same thing to the search path we end up with inconsistent man-pages. Adjusting the search path too would be quite messy, and it is not at all obvious that this is worth the effort, but at any rate it would have to be done before we could ship this. * this means that distributed man-pages does not make sense as they depend on config options, and for better or worse we are still distributing man pages, so that is something that definitely needs sorting out before we could ship with this patch. * we have long held that split-usr is only minimally supported in order to boot, and something we hope will eventually go away. So before we start adding even more magic/effort in order to make this work nicely, we should probably question if it makes sense at all.
173 lines
6.1 KiB
XML
173 lines
6.1 KiB
XML
<?xml version='1.0'?> <!--*-nxml-*-->
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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
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"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
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<!--
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This file is part of systemd.
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Copyright 2012 Intel Corporation
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Authors:
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Auke Kok <auke-jan.h.kok@intel.com>
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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-->
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<refentry id="bootchart.conf" conditional='ENABLE_BOOTCHART'
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xmlns:xi="http://www.w3.org/2001/XInclude">
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<refentryinfo>
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<title>bootchart.conf</title>
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<productname>systemd</productname>
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<authorgroup>
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<author>
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<contrib>Developer</contrib>
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<firstname>Auke</firstname>
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<surname>Kok</surname>
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<email>auke-jan.h.kok@intel.com</email>
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</author>
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</authorgroup>
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</refentryinfo>
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<refmeta>
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<refentrytitle>bootchart.conf</refentrytitle>
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<manvolnum>5</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>bootchart.conf</refname>
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<refname>bootchart.conf.d</refname>
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<refpurpose>Boot performance analysis graphing tool configuration files</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<para><filename>/etc/systemd/bootchart.conf</filename></para>
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<para><filename>/etc/systemd/bootchart.conf.d/*.conf</filename></para>
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<para><filename>/run/systemd/bootchart.conf.d/*.conf</filename></para>
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<para><filename>/usr/lib/systemd/bootchart.conf.d/*.conf</filename></para>
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</refsynopsisdiv>
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<refsect1>
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<title>Description</title>
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<para>When starting, systemd-bootchart will read the configuration
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file <filename>/etc/systemd/bootchart.conf</filename>, followed by
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the files in the <filename>bootchart.conf.d</filename>
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directories. These configuration files determine logging
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parameters and graph output.</para>
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</refsect1>
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<xi:include href="standard-conf.xml" xpointer="main-conf" />
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<refsect1>
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<title>Options</title>
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<variablelist class='bootchart-directives'>
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<varlistentry>
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<term><varname>Samples=500</varname></term>
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<listitem><para>Configure the amount of samples to record in
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total before bootchart exits. Each sample will record at
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intervals defined by Frequency=.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>Frequency=25</varname></term>
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<listitem><para>Configure the sample log frequency. This can
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be a fractional number, but must be larger than 0.0. Most
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systems can cope with values under 25-50 without impacting
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boot time severely.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>Relative=no</varname></term>
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<listitem><para>Configures whether the left axis of the output
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graph equals time=0.0 (<constant>CLOCK_MONOTONIC</constant>
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start). This is useful for using bootchart at post-boot time
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to profile an already booted system, otherwise the graph would
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become extremely large. If set to yes, the horizontal axis
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starts at the first recorded sample instead of time=0.0.
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</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>Filter=no</varname></term>
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<listitem><para>Configures whether the resulting graph should
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omit tasks that did not contribute significantly to the boot.
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Processes that are too short-lived (only seen in one sample)
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or that do not consume any significant CPU time (less than
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0.001sec) will not be displayed in the output
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graph.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>Output=[path]</varname></term>
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<listitem><para>Configures the output directory for writing
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the graphs. By default, bootchart writes the graphs to
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<filename>/run/log</filename>.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>Init=[path]</varname></term>
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<listitem><para>Configures bootchart to run a non-standard
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binary instead of
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<filename>/usr/lib/systemd/systemd</filename>. This option is
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only relevant if bootchart was invoked from the kernel command
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line with
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init=/usr/lib/systemd/systemd-bootchart.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>PlotMemoryUsage=no</varname></term>
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<listitem><para>If set to yes, enables logging and graphing of
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processes' PSS memory consumption.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>PlotEntropyGraph=no</varname></term>
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<listitem><para>If set to yes, enables logging and graphing of
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the kernel random entropy pool size.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>ScaleX=100</varname></term>
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<listitem><para>Horizontal scaling factor for all variable
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graph components.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>ScaleY=20</varname></term>
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<listitem><para>Vertical scaling factor for all variable graph
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components.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>ControlGroup=no</varname></term>
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<listitem><para>Display process control group.
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</para></listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1>
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<title>See Also</title>
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<para>
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<citerefentry><refentrytitle>systemd-bootchart</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>systemd.directives</refentrytitle><manvolnum>7</manvolnum></citerefentry>
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</para>
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</refsect1>
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</refentry>
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