diff options
Diffstat (limited to 'man/systemd-bootchart.xml')
| -rw-r--r-- | man/systemd-bootchart.xml | 92 |
1 files changed, 89 insertions, 3 deletions
diff --git a/man/systemd-bootchart.xml b/man/systemd-bootchart.xml index f31d4a0a6c..75341100f9 100644 --- a/man/systemd-bootchart.xml +++ b/man/systemd-bootchart.xml @@ -10,6 +10,7 @@ Authors: Auke Kok <auke-jan.h.kok@intel.com> + William Giokas <1007380@gmail.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 @@ -91,9 +92,94 @@ <refsect1> <title>Options</title> - <para>Please read systemd-bootchart --help or the bootchart.conf manual - page for information about the various options that influence how - systemd-bootchart operates.</para> + <variablelist class='bootchart-directives'> + + <varlistentry> + <term><option>-n</option></term> + <term><option>--sample N</option></term> + <listitem><para>Specify the amount of samples to + record total before bootchart exits. Each sample will + record at intervals defined by --freq.</para></listitem> + </varlistentry> + + <varlistentry> + <term><option>-f</option></term> + <term><option>--freq N</option></term> + <listitem><para>Specify 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><option>-r</option></term> + <term><option>--rel</option></term> + <listitem><para>Use relative times instead of absolute + times. 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, the + horizontal axis starts at the first recorded sample + instead of time=0.0.</para></listitem> + </varlistentry> + + <varlistentry> + <term><option>-F</option></term> + <term><option>--filter</option></term> + <listitem><para>Disable filtering of tasks 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><option>-o</option></term> + <term><option>--output [path]</option></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><option>-i</option></term> + <term><option>--init [path]</option></term> + <listitem><para>Set init binary to run. Defaults to + <filename>/sbin/init</filename>. + </para></listitem> + </varlistentry> + + <varlistentry> + <term><option>-p</option></term> + <term><option>--pss</option></term> + <listitem><para>Enable logging and graphing + of processes PSS memory consumption.</para></listitem> + </varlistentry> + + <varlistentry> + <term><option>-e</option></term> + <term><option>--entropy</option></term> + <listitem><para>Enable logging and graphing + of the kernel random entropy pool size.</para></listitem> + </varlistentry> + + <varlistentry> + <term><option>-x</option></term> + <term><option>--scale-x N</option></term> + <listitem><para>Horizontal scaling factor for all variable + graph components.</para></listitem> + </varlistentry> + + <varlistentry> + <term><option>-y</option></term> + <term><option>--scale-y N</option></term> + <listitem><para>Vertical scaling factor for all variable + graph components.</para></listitem> + </varlistentry> + + </variablelist> + + </refsect1> <refsect1> |