This is the default output of the munin load plugin. I’ve patched it to add a permanent blue line indicating the number of cpu of the server. The resulted graph looks like this : You can download the patched plugin here. It is tested with Linux and FreeBSD.
munin
Munin and Use of uninitializer value in eval
On some of freshly installed servers (Debian Etch), I encountered these error messages in /var/log/munin/munin-node.log: Use of uninitialized value in eval {block} exit at /usr/sbin/munin-node line 456, <CHILD> line 8. What a great error message 🙂 After digging into Google results, I found it was just a problem with host_name variable in the configuration. Default …