Sar?
this post was submitted on 12 Oct 2024
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Linux
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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.
fyi, systemctl disable/enable has a --now flag
Sudo cpupower -c all frequency-set --max 0.8GHz No more spikes 😎👍👌
That'd just prolong a mild spike instead
Sounds like atop is exactly what you need.