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Update documentation for the 2.0

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README.rst
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@ -33,8 +33,7 @@ Requirements
Optional dependencies: Optional dependencies:
- ``bottle`` (for web server mode) - ``bottle`` (for Web Server mode)
- ``jinja2`` (for HTML output)
- ``py3sensors`` (for HW monitoring support) [Linux-only] - ``py3sensors`` (for HW monitoring support) [Linux-only]
- ``hddtemp`` (for HDD temperature monitoring support) - ``hddtemp`` (for HDD temperature monitoring support)
- ``batinfo`` (for battery monitoring support) [Linux-only] - ``batinfo`` (for battery monitoring support) [Linux-only]
@ -100,7 +99,7 @@ To install Glances from ports:
OS X OS X
---- ----
OS X users can also install Glances using `Homebrew`_ or `MacPorts`_. OS X users can install Glances using `Homebrew`_ or `MacPorts`_.
Homebrew Homebrew
```````` ````````
@ -137,11 +136,11 @@ Otherwise, you have to follow these steps:
Source Source
------ ------
To install Glances from source: To install Glances version X.Y from source:
.. code-block:: console .. code-block:: console
$ curl -L https://github.com/nicolargo/glances/archive/vX.X.tar.gz -o glances-X.X.tar.gz $ curl -L https://github.com/nicolargo/glances/archive/vX.Y.tar.gz -o glances-X.Y.tar.gz
$ tar -zxvf glances-*.tar.gz $ tar -zxvf glances-*.tar.gz
$ cd glances-* $ cd glances-*
# python setup.py install # python setup.py install

201
docs/glances-doc.rst
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@ -2,11 +2,11 @@
Glances Glances
======= =======
This manual describes *Glances* version 1.7.4. This manual describes *Glances* version 2.0.
Copyright © 2012-2014 Nicolas Hennion <nicolas@nicolargo.com> Copyright © 2012-2014 Nicolas Hennion <nicolas@nicolargo.com>
January 2014 May 2014
.. contents:: Table of Contents .. contents:: Table of Contents
@ -45,8 +45,7 @@ Simply run:
Client/Server mode Client/Server mode
------------------ ------------------
If you want to remotely monitor a machine, called ``server``, from another one, called ``client``, If you want to remotely monitor a machine, called ``server``, from another one, called ``client``, just run on the server:
just run on the server:
.. code-block:: console .. code-block:: console
@ -68,44 +67,65 @@ Default binding address is ``0.0.0.0`` (Glances will listen on all the network i
In client/server mode, limits are set by the server side. In client/server mode, limits are set by the server side.
You can also set a password to access to the server ``-P password``. You can also set a password to access to the server ``--password``.
Glances is ``IPv6`` compatible. Just use the ``-B ::`` option to bind to all IPv6 addresses. Glances is ``IPv6`` compatible. Just use the ``-B ::`` option to bind to all IPv6 addresses.
If Glances server is not detected by the client, this last one try to grab stats using the SNMP protocol:
.. code-block:: console
client$ glances -c @snmpserver
Known limitation: Grab using SNMP is only validated for GNU/Linux operating system.
Command reference Command reference
================= =================
Command-line options Command-line options
-------------------- --------------------
-b Display network rate in Byte per second (default: bit per second) -h, --help show this help message and exit
-B IP Bind server to the given IPv4/IPv6 address or hostname --version show program's version number and exit
-c IP Connect to a Glances server by IPv4/IPv6 address or hostname -b, --byte display network rate in byte per second
-C FILE Path to the configuration file -B BIND_ADDRESS, --bind BIND_ADDRESS
-d Disable disk I/O module bind server to the given IPv4/IPv6 address or hostname
-e Enable sensors module (requires pysensors, Linux-only) -c CLIENT, --client CLIENT
-f FILE Set the HTML output folder or CSV file connect to a Glances server by IPv4/IPv6 address or
-h Display the help and exit hostname
-m Disable mount module -C CONF_FILE, --config CONF_FILE
-n Disable network module path to the configuration file
-o OUTPUT Define additional output (available: HTML or CSV) --disable-bold disable bold mode in the terminal
-p PORT Define the client/server TCP port (default: 61209) --disable-diskio disable disk I/O module
-P PASSWORD Define a client/server password --disable-fs disable filesystem module
--password Define a client/server password from the prompt --disable-network disable network module
-r Disable process list (for low CPU consumption) --disable-sensors disable sensors module
-s Run Glances in server mode --disable-process disable process module
-t SECONDS Set refresh time in seconds (default: 3 sec) --disable-log disable log module
-v Display the version and exit --output-csv OUTPUT_CSV
-y Enable hddtemp module (requires hddtemp) export stats to a csv file
-z Do not use the bold color attribute -p PORT, --port PORT define the client/server TCP port [default: 61209]
-1 Start Glances in per-CPU mode --password define a client/server password from the prompt/file
-s, --server run Glances in server mode
--snmp-community SNMP_COMMUNITY
SNMP community
--snmp-port SNMP_PORT
SNMP port
--snmp-version SNMP_VERSION
SNMP version (1, 2c or 3)
--snmp-user SNMP_USER
SNMP username (only for SNMPv3)
--snmp-auth SNMP_AUTH
SNMP authentication key (only for SNMPv3)
-t TIME, --time TIME set refresh time in seconds [default: 3 sec]
-w, --webserver run Glances in web server mode
-1, --percpu start Glances in per CPU mode
Interactive commands Interactive commands
-------------------- --------------------
The following commands (key pressed) are supported while in Glances: The following commands (key pressed) are supported while in Glances:
``a`` ``a``
Sort process list automatically Sort process list automatically
@ -135,7 +155,7 @@ The following commands (key pressed) are supported while in Glances:
``q`` ``q``
Quit Quit
``s`` ``s``
Show/hide sensors stats (only available with -e flag) Show/hide sensors stats
``t`` ``t``
View network I/O as combination View network I/O as combination
``u`` ``u``
@ -145,7 +165,7 @@ The following commands (key pressed) are supported while in Glances:
``x`` ``x``
Delete finished warning and critical log messages Delete finished warning and critical log messages
``y`` ``y``
Show/hide hddtemp stats (only available with -y flag) Show/hide hddtemp stats
``1`` ``1``
Switch between global CPU and per-CPU stats Switch between global CPU and per-CPU stats
@ -202,8 +222,10 @@ Header
.. image:: images/header.png .. image:: images/header.png
The header shows the hostname, OS name, release version, platform architecture and system uptime. The header shows the hostname, OS name, release version, platform architecture and system uptime (on the upper right).
On Linux, it shows also the kernel version. Additionnaly, on GNU/Linux operating system, it shows also the kernel version.
In client mode, the server connection status is displayed (Connected or Disconnected)
CPU CPU
--- ---
@ -225,10 +247,10 @@ To switch to per-CPU stats, just hit the ``1`` key:
The CPU stats are shown as a percentage and for the configured refresh time. The CPU stats are shown as a percentage and for the configured refresh time.
The total CPU usage is displayed on the first line. The total CPU usage is displayed on the first line.
| If user|system|nice CPU is ``<50%``, then status is set to ``"OK"`` | If user|system|iowait CPU is ``<50%``, then status is set to ``"OK"``
| If user|system|nice CPU is ``>50%``, then status is set to ``"CAREFUL"`` | If user|system|iowait CPU is ``>50%``, then status is set to ``"CAREFUL"``
| If user|system|nice CPU is ``>70%``, then status is set to ``"WARNING"`` | If user|system|iowait CPU is ``>70%``, then status is set to ``"WARNING"``
| If user|system|nice CPU is ``>90%``, then status is set to ``"CRITICAL"`` | If user|system|iowait CPU is ``>90%``, then status is set to ``"CRITICAL"``
*Note*: limit values can be overwritten in the configuration file under the ``[cpu]`` section. *Note*: limit values can be overwritten in the configuration file under the ``[cpu]`` section.
@ -241,10 +263,10 @@ On the *No Sheep* blog, *Zachary Tirrell* defines the average load [1]_:
"In short it is the average sum of the number of processes "In short it is the average sum of the number of processes
waiting in the run-queue plus the number currently executing waiting in the run-queue plus the number currently executing
over 1, 5, and 15 minute time periods." over 1, 5, and 15 minutes time periods."
Glances gets the number of CPU core to adapt the alerts. Glances gets the number of CPU core to adapt the alerts.
Alerts on average load are only set on 5 and 15 min. Alerts on average load are only set on 15 minutes time period.
The first line also display the number of CPU core. The first line also display the number of CPU core.
| If average load is ``<0.7*core``, then status is set to ``"OK"`` | If average load is ``<0.7*core``, then status is set to ``"OK"``
@ -257,15 +279,15 @@ The first line also display the number of CPU core.
Memory Memory
------ ------
Glances uses two columns: one for the ``RAM`` and another one for the ``Swap``. Glances uses two columns: one for the ``RAM`` and another one for the ``SWAP``.
.. image:: images/mem.png .. image:: images/mem.png
If enough space is available, Glances displays extended informations: If enough space is available, Glances displays extended informations for the ``RAM``:
.. image:: images/mem-wide.png .. image:: images/mem-wide.png
With Glances, alerts are only set for on used memory and used swap. With Glances, alerts are only set for used memory and swap.
| If memory is ``<50%``, then status is set to ``"OK"`` | If memory is ``<50%``, then status is set to ``"OK"``
| If memory is ``>50%``, then status is set to ``"CAREFUL"`` | If memory is ``>50%``, then status is set to ``"CAREFUL"``
@ -297,29 +319,16 @@ if the bit rate is higher than 70 Mbps.
Sensors Sensors
------- -------
Glances can displays the sensors informations trough `lm-sensors` (only available on Linux). Glances can displays the sensors information trough `lm-sensors` (only available on GNU/Linux).
As of lm-sensors, a filter is processed in order to display temperature only: As of lm-sensors, a filter is processed in order to display temperature only:
.. image:: images/sensors.png .. image:: images/sensors.png
Glances can also grab hard disk temperature through the `hddtemp` daemon (see here [2]_ to install hddtemp on your system): Glances can also grab hard disk temperature through the `hddtemp` daemon (see here [2]_ to install hddtemp on your system):
.. image:: images/hddtemp.png .. image:: images/hddtemp.png
To enable the lm-sensors module:
.. code-block:: console
$ glances -e
To enable the hddtemp module:
.. code-block:: console
$ glances -y
There is no alert on this information. There is no alert on this information.
*Note*: limit values can be overwritten in the configuration file under the ``[temperature]`` and ``[hddtemperature]`` sections. *Note*: limit values can be overwritten in the configuration file under the ``[temperature]`` and ``[hddtemperature]`` sections.
@ -366,7 +375,7 @@ Full view:
Three views are available for processes: Three views are available for processes:
* Processes summary * Processes summary
* Optional monitored processes list (new in 1.7) * Optional monitored processes list
* Processes list * Processes list
The processes summary line display: The processes summary line display:
@ -378,55 +387,58 @@ The processes summary line display:
* Other tasks number (not running or sleeping) * Other tasks number (not running or sleeping)
By default, or if you hit the ``a`` key, the processes list is automatically By default, or if you hit the ``a`` key, the processes list is automatically
sorted by CPU of memory usage. sorted by:
*Note*: limit values can be overwritten in the configuration file under the ``[process]`` section. * CPU if there is no alert (default behavor)
* CPU if a CPU or LOAD alert is detected
* MEM if a memory alert is detected
* DiskIO if a CPU IOWait alert is detected
The number of processes in the list is adapted to the screen size. The number of processes in the list is adapted to the screen size.
``VIRT``
Total program size (VMS)
``RES``
Resident set size (RSS)
``CPU%`` ``CPU%``
% of CPU used by the process % of CPU used by the process
``MEM%`` ``MEM%``
% of MEM used by the process % of MEM used by the process
``VIRT``
Total program size (VMS)
``RES``
Resident set size (RSS)
``PID`` ``PID``
Process ID Process ID
``USER`` ``USER``
User ID per process User ID
``NI`` ``NI``
Nice level of the process Nice level of the process
``S`` ``S``
Process status Process status (see details bellow)
``TIME+`` ``TIME+``
Cumulative CPU time used Cumulative CPU time used
``IOR/s`` ``IOR/s``
Per process IO read rate (in Byte/s) Per process IO read rate (in Byte/s)
``IOW/s`` ``IOW/s``
Per process IO write rate (in Byte/s) Per process IO write rate (in Byte/s)
``NAME`` ``COMMAND``
Process name or command line Process command line
Process status legend: Process Status legend:
``R`` ``R``
running Running
``S`` ``S``
sleeping (may be interrupted) Sleeping (may be interrupted)
``D`` ``D``
disk sleep (may not be interrupted) Disk sleep (may not be interrupted)
``T`` ``T``
traced/stopped Traced / Stopped
``Z`` ``Z``
zombie Zombie
*Note*: limit values can be overwritten in the configuration file under the ``[process]`` section.
Monitored processes list Monitored processes list
------------------------ ------------------------
New in version 1.7. Optional.
The monitored processes list allows user, through the configuration file, The monitored processes list allows user, through the configuration file,
to group processes and quickly show if the number of running process is not good. to group processes and quickly show if the number of running process is not good.
@ -494,31 +506,6 @@ Each alert message displays the following information:
3. alert name 3. alert name
4. {min/avg/max} values or number of running processes for monitored processes list alerts 4. {min/avg/max} values or number of running processes for monitored processes list alerts
Footer
------
.. image:: images/footer.png
Glances displays the current date & time and access to the embedded help screen.
If one or mode batteries were found on your machine and if the batinfo Python library [3]_
is installed on your system then Glances displays the available percent capacity in the middle on the footer.
.. image:: images/battery.png
If you have ran Glances in client mode ``-c``, you can also see if the client is connected to the server.
If client is connected:
.. image:: images/client-connected.png
else:
.. image:: images/client-disconnected.png
On the left, you can easily see if you are connected to a Glances server.
API documentation API documentation
================= =================
@ -529,24 +516,16 @@ API documentation is available at https://github.com/nicolargo/glances/wiki/The-
Others outputs Others outputs
============== ==============
Thanks to the -o option, it is possible to export statistics to CSV or HTML files. It is possible to export statistics to CSV file.
.. code-block:: console .. code-block:: console
$ glances -o CSV -f /tmp/glances.csv $ glances --output-csv /tmp/glances.csv
CSV files have on line per stats: CSV files have two lines per stat:
- load,load1,load5,load15 - Stats description
- mem,total,used,free - Stats (comma separated)
- swap,total,used,free
- cpu,user,system,nice,idel,iowait,irq
.. code-block:: console
$ glances -o HTML -f /tmp
Note: The css and img folders (glances/data) should be in the /tmp folder
Support Support
======= =======