mirror of
https://github.com/nicolargo/glances.git
synced 2024-12-27 11:16:10 +03:00
318 lines
8.8 KiB
Plaintext
318 lines
8.8 KiB
Plaintext
[](https://flattr.com/thing/484466/nicolargoglances-on-GitHub)
|
|
|
|
=============================
|
|
Glances -- Eye on your system
|
|
=============================
|
|
|
|
|
|
|
|
## Description
|
|
|
|
Glances is a CLI curses based monitoring tool for GNU/Linux and BSD OS.
|
|
|
|
Glances uses the PsUtil library to get information from your system.
|
|
|
|
It is developed in Python.
|
|
|
|
Console (80x24) screenshot:
|
|
|
|
|
|
|
|
Wide terminal (> 90x24) screenshot:
|
|
|
|
|
|
|
|
## Installation
|
|
|
|
Pre-requisites (information for packagers):
|
|
|
|
* Python 2.6+ (not tested with Python 3+)
|
|
* build-essential (for installation via Pypi and setup.py)
|
|
* python-dev (for installation via Pypi)
|
|
* python-setuptools (for the installation via setup.py)
|
|
* python-psutil 0.4.1+ (replace the old libstatgrab's lib)
|
|
* python-jinja2 2.0+ (optional for HTML export)
|
|
|
|
### From package manager (very easy way)
|
|
|
|
Packages exist for Arch, Fedora, Redhat, FreeBSD...
|
|
|
|
### From PyPi (easy and cross platform way)
|
|
|
|
PyPi is an official Python package manager.
|
|
|
|
You first need to install pypi on your system. For example on Debian/Ubuntu:
|
|
|
|
$ sudo apt-get update
|
|
$ sudo apt-get install python-pip build-essential python-dev
|
|
|
|
Then install the latest Glances version:
|
|
|
|
$ sudo pip install Glances
|
|
|
|
Note: if you are behind an HTTP Proxy, you should use
|
|
|
|
$ sudo pip install --proxy=user:password@url:port Glances
|
|
|
|
### From PPA (easy way for Ubuntu/Mint...)
|
|
|
|
Arnaud Hartmann (thanks to him !) maintains a PPA with the latest Glances version:
|
|
|
|
The PPA is available for Ubuntu version 9.10 to 12.04.
|
|
|
|
To install the PPA just enter:
|
|
|
|
$ sudo add-apt-repository ppa:arnaud-hartmann/glances-stable
|
|
$ sudo apt-get update
|
|
|
|
Then install Glances:
|
|
|
|
$ sudo apt-get install glances
|
|
|
|
### From [Homebrew](http://mxcl.github.com/homebrew/) via PyPi (OS X)
|
|
|
|
$ brew install brew-pip
|
|
$ export PYTHONPATH=$(brew --prefix)/lib/python2.7/site-packages
|
|
$ brew pip Glances
|
|
|
|
### From source
|
|
|
|
Get the latest version:
|
|
|
|
$ rm -rf /tmp/nicolargo-glances-*
|
|
$ wget -O /tmp/glances-last.tgz https://github.com/nicolargo/glances/tarball/master
|
|
|
|
Glances use a standard GNU style installer (for a Debian like system):
|
|
|
|
$ 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
|
|
|
|
## Running
|
|
|
|
Easy way (that's all folks !):
|
|
|
|
$ glances
|
|
|
|
## User guide
|
|
|
|
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:
|
|
|
|
$ glances -t 5
|
|
|
|
Importants stats are colored:
|
|
|
|
* GREEN: stat counter is "OK"
|
|
* BLUE: stat counter is "CAREFUL"
|
|
* MAGENTA: stat counter is "WARNING"
|
|
* RED: stat counter is "CRITICAL"
|
|
|
|
When Glances is running, you can press:
|
|
|
|
* 'h' to display a help message with the keys you can press
|
|
* 'a' to set the automatic mode. The processes are sorted automatically
|
|
|
|
If CPU > 70%, sort by process "CPU consumption"
|
|
|
|
If MEM > 70%, sort by process "memory size"
|
|
|
|
* 'c' to sort the processes list by CPU consumption
|
|
* 'd' Disable or enable the disk IO stats
|
|
* 'f' Disable or enable the file system stats
|
|
* 'l' Disable or enable the logs
|
|
* 'm' to sort the processes list by process MEM
|
|
* 'n' Disable or enable the network interfaces stats
|
|
* 'p' to sort by process name
|
|
* 'q' Exit
|
|
|
|
### Header
|
|
|
|
|
|
|
|
The header shows the host name and the operating system name, version and architecture.
|
|
|
|
### CPU
|
|
|
|
Short view:
|
|
|
|
|
|
|
|
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.
|
|
|
|
|
|
|
|
If horizontal space is available, per core CPU infomations are displayed.
|
|
|
|
Color code used:
|
|
|
|
If user|kernel|nice CPU is < 50%, then status is set to "OK".
|
|
|
|
If user|kernel|nice CPU is > 50%, then status is set to "CAREFUL".
|
|
|
|
If user|kernel|nice CPU is > 70%, then status is set to "WARNING".
|
|
|
|
If user|kernel|nice CPU is > 90%, then status is set to "CRITICAL".
|
|
|
|
### Load
|
|
|
|
|
|
|
|
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."
|
|
|
|
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.
|
|
|
|
If average load is < O.7*Core, then status is set to "OK".
|
|
|
|
If average load is > O.7*Core, then status is set to "CAREFUL".
|
|
|
|
If average load is > 1*Core, then status is set to "WARNING".
|
|
|
|
If average load is > 5*Core, then status is set to "CRITICAL".
|
|
|
|
### Memory
|
|
|
|
|
|
|
|
Glances uses three columns: memory (RAM), "real" and swap.
|
|
|
|
Real used memory is: used - cache.
|
|
|
|
Real free memory is: free + cache.
|
|
|
|
With Glances, alerts are only set for on used swap and real memory.
|
|
|
|
If memory is < 50%, then status is set to "OK".
|
|
|
|
If memory is > 50%, then status is set to "CAREFUL".
|
|
|
|
If memory is > 70%, then status is set to "WARNING".
|
|
|
|
If memory is > 90%, then status is set to "CRITICAL".
|
|
|
|
### Network bit rate
|
|
|
|
|
|
|
|
Glances display the network interface bit rate. The unit is adapted
|
|
dynamicaly (bits per second, Kbits per second, Mbits per second...).
|
|
|
|
Alerts are set only if the network interface maximum speed is available.
|
|
|
|
If bit rate is < 50%, then status is set to "OK".
|
|
|
|
If bit rate is > 50%, then status is set to "CAREFUL".
|
|
|
|
If bit rate is > 70%, then status is set to "WARNING".
|
|
|
|
If bit rate is > 90%, then status is set to "CRITICAL".
|
|
|
|
For example, on a 100 Mbps Ethernet interface, the warning status is set
|
|
if the bit rate is higher than 70 Mbps.
|
|
|
|
### Disk I/O
|
|
|
|
|
|
|
|
Glances displays the disk I/O throughput. The unit is adapted dynamically
|
|
(bytes per second, Kbytes per second, Mbytes per second...).
|
|
|
|
There is no alert on this information.
|
|
|
|
### Filesystem
|
|
|
|
|
|
|
|
Glances displays the total and used filesytem disk space. The unit is
|
|
adapted dynamically (bytes per second, Kbytes per second, Mbytes per
|
|
second...).
|
|
|
|
Alerts are set for used disk space:
|
|
|
|
If disk used is < 50%, then status is set to "OK".
|
|
|
|
If disk used is > 50%, then status is set to "CAREFUL".
|
|
|
|
If disk used is > 70%, then status is set to "WARNING".
|
|
|
|
If disk used is > 90%, then status is set to "CRITICAL".
|
|
|
|
### Processes
|
|
|
|
Short view:
|
|
|
|
|
|
|
|
Long view (only available if your terminal is wide enough)
|
|
|
|
|
|
|
|
Glances displays a summary and a list of processes.
|
|
|
|
By default (or if you hit the 'a' key) the process list is automatically
|
|
sorted by CPU of memory consumption.
|
|
|
|
The number of processes in the list is adapted to the screen size.
|
|
|
|
* VIRT: Virtual memory size (in byte)
|
|
* REST: Amount of resident memory (in byte)
|
|
* CPU%: % of CPU used by the process
|
|
* MEM%: % of MEM used by the process
|
|
* PID: Process ID
|
|
* USER: Process user ID
|
|
* NI: Nice level of the process
|
|
* S: Process status
|
|
|
|
R - Running
|
|
D - Sleeping (may not be interrupted)
|
|
S - Sleeping (may be interrupted)
|
|
T - Traced or stopped
|
|
Z - Zombie or "hung" process
|
|
|
|
* IO READ and WRITE: Per process IO read and write
|
|
* TIME+: Cumulative CPU time used
|
|
* NAME: Process name or command line
|
|
|
|
|
|
### Logs
|
|
|
|
|
|
|
|
A logs list is displayed in the bottom of the screen if (and only if):
|
|
|
|
* at least one WARNING or CRITICAL alert was occured.
|
|
* space is available in the bottom of the console/terminal
|
|
|
|
There is one line per alert with the following information:
|
|
|
|
* start date
|
|
* end date
|
|
* alert name
|
|
* (min/avg/max) values
|
|
|
|
### Footer
|
|
|
|
|
|
|
|
Glances displays the current time/date and access to the embedded help screen.
|
|
|
|
## Localisation
|
|
|
|
To generate french locale execute as root or sudo :
|
|
i18n_francais_generate.sh
|
|
|
|
To generate spanish locale execute as root or sudo :
|
|
i18n_espanol_generate.sh
|