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<title>Glances by nicolargo</title>
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<h1>Glances</h1>
<h2>Glances an Eye on your system</h2>
<a href="https://github.com/nicolargo/glances" class="button"><small>View project on</small>GitHub</a>
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<p><a href="https://flattr.com/thing/484466/nicolargoglances-on-GitHub"><img src="http://api.flattr.com/button/flattr-badge-large.png" alt="Flattr this git repo"></a></p>
<h1>Glances -- Eye on your system</h1>
<h2>Description</h2>
<p>Glances is a CLI curses based monitoring tool for GNU/Linux and BSD OS.</p>
<p>Glances uses the PsUtil library to get information from your system.</p>
<p>It is developed in Python.</p>
<p>Console (80x24) screenshot:</p>
<p><img src="https://github.com/nicolargo/glances/raw/master/screenshot.png" alt="screenshot"></p>
<p>Wide terminal (> 90x24) screenshot:</p>
<p><img src="https://github.com/nicolargo/glances/raw/master/screenshot-wide.png" alt="screenshot"></p>
<h2>Installation</h2>
<h3>From packets manager (clean and easy way)</h3>
<p>Note: Packets are maintained by contibutors. It's not sure to have the latest Glances version.</p>
<ul>
<li>ArchLinux: <a href="http://aur.archlinux.org/packages.php?ID=54666">In the AUR repository</a></li>
<li>CentOS: <a href="https://github.com/nicolargo/glances/wiki/Install:-On-CentOS-6.x-with-EPEL-repository">Using EPEL and Pip</a></li>
<li><a href="https://apps.fedoraproject.org/packages/glances">Fedora</a></li>
<li><a href="http://www.freebsd.org/cgi/query-pr.cgi?pr=171517">FreeBSD</a></li>
<li><a href="http://packages.gentoo.org/package/sys-process/glances">Gentoo</a></li>
<li><a href="http://rpm.pbone.net/">Redhat</a></li>
<li><a href="https://launchpad.net/~arnaud-hartmann/+archive/glances-stable">Ubuntu (see instructions bellow)</a></li>
</ul>
<h3>From PyPi (easy and cross platform way)</h3>
<p>PyPi is an official Python package manager.</p>
<p>You first need to install pypi on your system.</p>
<p>For example on Debian/Ubuntu:</p>
<pre><code>$ sudo apt-get update
$ sudo apt-get install python-pip build-essential python-dev
</code></pre>
<p>or for CentOS/Fedora/RH:</p>
<pre><code>
$ sudo rpm -ivh http://fr2.rpmfind.net/linux/epel/6/x86_64/epel-release-6-7.noarch.rpm
$ sudo yum install python-pip python-dev
</code></pre>
<p>Then install the latest Glances version:</p>
<pre><code>$ sudo pip install glances
</code></pre>
<p>Note: if you are behind an HTTP Proxy, you should use</p>
<pre><code>$ sudo pip install --proxy=user:password@url:port glances
</code></pre>
<p>If you want to upgrade Glances to the latest version:</p>
<pre><code>$ sudo pip install --upgrade glances
</code></pre>
<h3>From PPA (easy way for Ubuntu/Mint...)</h3>
<p>Arnaud Hartmann (thanks to him !) maintains a PPA with the latest Glances version:</p>
<p>The PPA is available for Ubuntu version 9.10 to 12.04.</p>
<p>To install the PPA just enter:</p>
<pre><code>$ sudo add-apt-repository ppa:arnaud-hartmann/glances-stable
$ sudo apt-get update
</code></pre>
<p>Then install Glances:</p>
<pre><code>$ sudo apt-get install glances
</code></pre>
<h3>From our Puppet Master</h3>
<p>Remi Verchere has created <a href="https://github.com/rverchere/puppet-glances">a Glances module for Puppet</href>.</p>
<h3>From <a href="http://mxcl.github.com/homebrew/">Homebrew</a> via PyPi (OS X)</h3>
<pre><code>$ brew install brew-pip
$ export PYTHONPATH=$(brew --prefix)/lib/python2.7/site-packages
$ brew pip Glances
</code></pre>
<h3>From source</h3>
<p>Get the latest version:</p>
<pre><code>$ rm -rf /tmp/nicolargo-glances-*
$ wget -O /tmp/glances-last.tgz https://github.com/nicolargo/glances/tarball/master
</code></pre>
<p>Glances use a standard GNU style installer (for a Debian like system):</p>
<pre><code>$ sudo apt-get update
$ sudo apt-get install python-setuptools build-essential python-dev
$ cd /tmp
$ tar zxvf glances-last.tgz
$ cd nicolargo-glances-*
$ sudo python setup.py install
</code></pre>
<p>Pre-requisites (information for packagers):</p>
<ul>
<li>Python 2.6+ (not tested with Python 3+)</li>
<li>build-essential (for installation via Pypi and setup.py)</li>
<li>python-dev (for installation via Pypi)</li>
<li>python-setuptools (for the installation via setup.py)</li>
<li>python-psutil 0.4.1+ (replace the old libstatgrab's lib)</li>
<li>python-jinja2 2.0+ (optional for HTML export)</li>
</ul>
<h2>Running</h2>
<p>Easy way (that's all folks !):</p>
<pre><code>$ glances
</code></pre>
<h2>User guide</h2>
<p>By default, stats are refreshed every second, to change this setting, you can
use the -t option. For example to set the refresh rate to 5 seconds:</p>
<pre><code>$ glances -t 5
</code></pre>
<p>Importants stats are colored:</p>
<ul>
<li>GREEN: stat counter is "OK"</li>
<li>BLUE: stat counter is "CAREFUL"</li>
<li>MAGENTA: stat counter is "WARNING"</li>
<li>RED: stat counter is "CRITICAL"</li>
</ul><p>When Glances is running, you can press:</p>
<ul>
<li>'h' to display a help message with the keys you can press</li>
<li>
<p>'a' to set the automatic mode. The processes are sorted automatically</p>
<p>If CPU > 70%, sort by process "CPU consumption"</p>
<p>If MEM > 70%, sort by process "memory size"</p>
</li>
<li><p>'c' to sort the processes list by CPU consumption</p></li>
<li><p>'d' Disable or enable the disk IO stats</p></li>
<li><p>'f' Disable or enable the file system stats</p></li>
<li><p>'l' Disable or enable the logs</p></li>
<li><p>'m' to sort the processes list by process MEM</p></li>
<li><p>'n' Disable or enable the network interfaces stats</p></li>
<li><p>'p' to sort by process name</p></li>
<li><p>'q' Exit</p></li>
</ul><h3>Header</h3>
<p><img src="https://github.com/nicolargo/glances/raw/master/doc/header.png" alt="screenshot"></p>
<p>The header shows the host name and the operating system name, version and architecture.</p>
<h3>CPU</h3>
<p>Short view:</p>
<p><img src="https://github.com/nicolargo/glances/raw/master/doc/cpu.png" alt="screenshot"></p>
<p>Long view (only available if your terminal is wide enough). The CPU stats are shown as a percentage and for the configured refresh
time. The total CPU usage is displayed on the first line.</p>
<p><img src="https://github.com/nicolargo/glances/raw/master/doc/percpu.png" alt="screenshot"></p>
<p>If horizontal space is available, per core CPU infomations are displayed. </p>
<p>Color code used:</p>
<p>If user|kernel|nice CPU is < 50%, then status is set to "OK".</p>
<p>If user|kernel|nice CPU is > 50%, then status is set to "CAREFUL".</p>
<p>If user|kernel|nice CPU is > 70%, then status is set to "WARNING".</p>
<p>If user|kernel|nice CPU is > 90%, then status is set to "CRITICAL".</p>
<h3>Load</h3>
<p><img src="https://github.com/nicolargo/glances/raw/master/doc/load.png" alt="screenshot"></p>
<p>On the Nosheep blog, Zach defines average load: "In short it is the
average sum of the number of processes waiting in the run-queue plus the
number currently executing over 1, 5, and 15 minute time periods."</p>
<p>Glances gets the number of CPU cores to adapt the alerts. With Glances,
alerts on average load are only set on 5 and 15 mins. The first line
also display the number of CPU core.</p>
<p>If average load is < O.7*Core, then status is set to "OK".</p>
<p>If average load is > O.7*Core, then status is set to "CAREFUL".</p>
<p>If average load is > 1*Core, then status is set to "WARNING".</p>
<p>If average load is > 5*Core, then status is set to "CRITICAL".</p>
<h3>Memory</h3>
<p><img src="https://github.com/nicolargo/glances/raw/master/doc/mem.png" alt="screenshot"></p>
<p>Glances uses three columns: memory (RAM), "real" and swap.</p>
<p>Real used memory is: used - cache.</p>
<p>Real free memory is: free + cache.</p>
<p>With Glances, alerts are only set for on used swap and real memory.</p>
<p>If memory is < 50%, then status is set to "OK".</p>
<p>If memory is > 50%, then status is set to "CAREFUL".</p>
<p>If memory is > 70%, then status is set to "WARNING".</p>
<p>If memory is > 90%, then status is set to "CRITICAL".</p>
<h3>Network bit rate</h3>
<p><img src="https://github.com/nicolargo/glances/raw/master/doc/network.png" alt="screenshot"></p>
<p>Glances display the network interface bit rate. The unit is adapted
dynamicaly (bits per second, Kbits per second, Mbits per second...).</p>
<p>Alerts are set only if the network interface maximum speed is available.</p>
<p>If bit rate is < 50%, then status is set to "OK".</p>
<p>If bit rate is > 50%, then status is set to "CAREFUL".</p>
<p>If bit rate is > 70%, then status is set to "WARNING".</p>
<p>If bit rate is > 90%, then status is set to "CRITICAL".</p>
<p&g
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