Nagios Support Forum

You know, I noticed that, my plugin took a lot of CPU time.
This plugin name is ./check_vmware.pl
Htop shows CPUS 100% loaded by this plugin. But I cannot give up this plugin. Heh, in the afternoon I had the same:

Wow, that's a lot.

Different plugins definitely come at a different price in terms of resource utilization. It is possible that these are just a certain aspect of the checks that are taking all of the CPU, you may want to do some testing to see of it is just one of your checks that use that plugin that is using all the CPU