Linux server administration/atop
(Redirected from Atop)
Atop is an ASCII full-screen performance monitor for Linux that is capable of reporting the activity of all processes even if processes have finished during the interval and daily logging of system and process activity for long-term analysis. To collect information atop switches on the process accounting mechanism in the kernel[1].
- Crontab:
/etc/cron.d/atop
->/usr/share/atop/atop.daily
(INTERVAL=600
) - Data storage:
/var/log/atop
Usage
edit- View interactively today recorded activity:
atop -r
(presst
to see next interval) atopsar -A
[2]atopsar -O
Report top 3 processes consuming CPU
Activities
edit- Read LWN article about atop: https://lwn.net/Articles/387202/
See also
edit- sysstat
- acct package and lastcomm command (https://www.gnu.org/software/acct/)
- auditd
- monitoring
- Linux server administration/Performance and Troubleshooting