Mostly coppied from bootchart.conf(5)
Signed-off-by: William Giokas <[email protected]>
---
man/systemd-bootchart.xml | 92 +++++++++++++++++++++++++++++++++++++++++++++--
1 file changed, 89 insertions(+), 3 deletions(-)
diff --git a/man/systemd-bootchart.xml b/man/systemd-bootchart.xml
index f31d4a0..7534110 100644
--- a/man/systemd-bootchart.xml
+++ b/man/systemd-bootchart.xml
@@ -10,6 +10,7 @@
Authors:
Auke Kok <[email protected]>
+ William Giokas <[email protected]>
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>
--
1.8.1.3.566.gaa39828
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