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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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Low resource system activity reporting tool? i.e. "What caused that CPU spike on my laptop 10 mins ago?" (lemmy.ml)

submitted 3 weeks ago by [email protected] to c/[email protected]

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Any recommendations for low-impact tools I can use to better understand the activity of expired processes?

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[–] [email protected] 12 points 3 weeks ago (1 children)

Sar?

[–] [email protected] 11 points 3 weeks ago (1 children)

Yeah, so this is the best one I've seen so far.

I've just installed it, but I'm stumped on the documentation on how to find the name of a high-load process from 10 mins ago.

Install and start the monitoring

sudo pacman -S sysstat
sudo systemctl {enable,start} sysstat

Find what processes were running 10 minutes ago

(first wait 10 minutes)

sar -P ALL -f /var/log/sa/sa$(date +%d -d '10 minutes ago')

nothing happens.

[–] [email protected] 8 points 3 weeks ago

fyi, systemctl disable/enable has a --now flag