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

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

6 comments

Sar?
- 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.

6 comments