Sysadmin @lemmy.world Kari'boka @social.harpia.red 3mo ago

What's the best way to monitor and log which processes are responsible for high system load throughout the day? Tools like top and htop only provide immediate values, but I'm looking for a solution

What's the best way to monitor and log which processes are responsible for high system load throughout the day? Tools like top and htop only provide immediate values, but I'm looking for a solution that offers historical data to identify the main culprits over time.

@sysadmin

#sysadmin #linux #server

17 comments

Netdata is excellent, simple and I believe FOSS. Just install locally and it should start logging pretty much everything.
- Clicked the link, started reading .. closed the window when I read "Netdata also incorporates A.I. insights for all monitored data".
  
  ~~Eesh. Yeah, that’s a nope from me, dawg.~~
  
  Actually, it’s all self-hosted. Granted, I haven’t looked at the code in detail, but building NNs to help efficiently detect and capture stuff is actually a very appropriate use of ML. This project looks kinda cool.
  
  this limited scope ML trained analysis is actually where "AI" excels, e.g. "computer vision" in specific medical scenarios
- I run this in a Docker container on my home network without connecting it to their cloud platform (despite their - increasingly strident, it feels - "encouragements" to do so). It's very powerful, and the majority of low level configuration is done via text files. But 99% of it is automatic.
  
  The UI is unique. It's a single, long and scrollable page, which may be an issue for some.
  
  There are other tools out there, too. I previously used one that integrates Grafana, Prometheus and Node Exporter, which is more complex to set up and configure.
I like to use atop at the first step during investigation : https://www.atoptool.nl/
atop should be available in your package manager and run as a daemon. It stores the history in /var/
I did a whole stack of servers using SNMP based monitoring years ago and it was amazing. I could see loads, memory stats, NIC utilisation, disk space, and all sorts of other things. I tried Cacti and Icinga and settled on the latter but they are all fairly similar. Once you are generating the data you van do whatever you like with it, so monitoring load attributable to which actual executable is definitely manageable. It is also handy for getting notifications for something being down, losing stability, or just being out if whack.
In my time we used sar. I feel old when reading about all your new tools I never heard of.
Look through RHEL stuff. I'm not sure if Tuna has exactly what you're looking for, but it is the tool for detailed analysis of processes on logical cores, CPU set isolation and monitoring. RHEL has tools for everything in this area, and most are available in any other distro.
https://www.paessler.com/prtg/download We are using this. Loving it but i think only runs on windows. Free for first 100 sensors which should be enough at home.
- Love a bit of PRTG, it can monitor pretty much anything via SNMP and the like.
I like zabbix. It can monitor what ever i like, using snmp, ipmi, rest apis or its own agent.

I have a team member insisting on using netdata, but outside of the nice dashboard it doesn’t provide anything. It is local only, and setting up alarms is a pain. And tbh it nags more than canonical stuff

17 comments