As you know, I have several systems running at home (physical and virtual machines).
I was looking for a way to “see” quickly any bottleneck, or any unusual activity on those systems from my laptop.

My first reaction was to go for a gnome-like system monitor (gnome-system-monitor).
Despite all criticisms I could read, it was showing me all necessary information, especially real-time graphs for CPU, Memory, and Network.
But when I launched them remotely (through an SSH session, and with the appropriate DISPLAY forwarding option), it showed clearly that it was consuming around 4Mb/s of Network bandwidth just to display… itself !

So, I googled a little bit, and I rediscovered a tool I used to install a long time ago : gkrellm
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