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<page xmlns="http://projectmallard.org/1.0/"
type="topic" style="task"
id="solaris-mode">
<info>
<revision version="0.2" pkgversion="3.11" date="2014-01-26" status="review"/>
<link type="guide" xref="index#other" group="other" />
<include href="legal.xml" xmlns="http://www.w3.org/2001/XInclude"/>
<credit type="author copyright">
<name>Phil Bull</name>
<email>philbull@gmail.com</email>
<years>2011</years>
</credit>
<credit type="author copyright">
<name>Michael Hill</name>
<email>mdhillca@gmail.com</email>
<years>2011, 2014</years>
</credit>
<desc>Use Solaris mode to reflect the number of CPUs.</desc>
</info>
<title>What is Solaris mode?</title>
<comment>
<cite date="2011-06-18" href="mailto:philbull@gmail.com">Phil Bull</cite>
<p>Very brief topic. Explain what "Solaris mode" in the preferences dialog
means. The current manual has some information.</p>
</comment>
<p>In a system that has multiple CPUs or <link xref="cpu-multicore">cores</link>,
processes can use more than one at the same time. It is possible for the
<gui>% CPU</gui> column to display values that total greater than 100% (i.e.
400% in a 4-CPU system). <gui>Solaris mode</gui> divides the <gui>% CPU</gui>
for each process by the number of CPUs in the system so that the total will be
100%.</p>
<p>To display the <gui>% CPU</gui> in <gui>Solaris mode</gui>:</p>
<steps>
<item><p>Click <gui>Preferences</gui> in the app menu.</p></item>
<item><p>Click the <gui>Processes</gui> tab.</p></item>
<item><p>Select <gui>Divide CPU Usage by CPU Count</gui>.</p></item>
</steps>
<note><p>The term <gui>Solaris mode</gui> derives from Sun's UNIX, compared
to the Linux default of IRIX mode, named for SGI's UNIX.</p></note>
</page>
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