atop
TLDR
Start atop
$ atop
Display memory consumption for each process$ atop -m
Display disk information$ atop -d
Display background process information$ atop -c
Display thread-specific resource utilization$ atop -y
Display the number of processes for each user$ atop -au
SYNOPSIS
atop [-m] [-d] [-c] [-y] [-au] [interval [samples]]
DESCRIPTION
atop is an advanced interactive monitor for Linux systems that shows system-level activity and process-level activity. It highlights resources that have reached critical load and provides historical data logging capabilities.
PARAMETERS
-m
Display memory consumption for each process-d
Display disk information-c
Display command line per process (background processes)-y
Display thread-specific resource utilization-a
Display active processes only-u
Display user statistics-g
Display generic output (default)-1
Display averages per second instead of per interval-r file
Read raw data from file instead of live system-w file
Write raw data to file for later analysis
KEYBOARD SHORTCUTS
g: generic output
m: memory details
d: disk details
n: network details
c: command line per process
u: user statistics
p: process activity
?: help
CAVEATS
Requires root privileges for some features. Can consume significant resources when monitoring at high frequencies.
HISTORY
Developed by Gerlof Langeveld. Designed to provide more detailed system monitoring than top with historical data logging.
