When comparing GKrellM vs netdata, the Slant community recommends netdata for most people. In the question“What are the best system monitors for UNIX-like systems?” netdata is ranked 5th while GKrellM is ranked 12th. The most important reason people chose netdata is:
Very nice UI with a good overview and nice colours.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Customize what to monitor
Users can easily set GKrellM to monitor what they like (depending on what monitors are supported by their PC) such as CPU usage (which can be set to monitor each core individually), as well as temperatures and fan speeds.
Pro Many available plugins
The uses of the monitor can be expanded with available plugins ranging from weather information to TIVO information.
Pro Set up alerts
Through the settings one can set alarms and warning for each monitor, which allows one to always stay informed if anything is getting above what their set limits are.
Pro Pleasant UI
Very nice UI with a good overview and nice colours.
Pro Plug and play
No need to configure anything to get started.
Pro Access via web
NetData is accessible via the web. So even remote hosts can be monitored.
Pro Smooth installation and setup
Cons
Con Default theme is not that great looking
The theme that comes by default for GKrellM is not really appealing to the eye and sadly many of the available themes are not that much better with fuzzy text and bad color choices.
Con Only in browser (if you use it together with atop, you can do without though)
The application is only accessible via the web browser. So if it's not running it has to be started and then accessed via the browser.
Con Takes up a significant portion of cpu and memory in smaller server instances
