Understanding Threshold Setup Check_Load

<[email protected]> Mon, 3 Apr 2017 14:30:03 +0530
Newsgroups gmane.network.nagios.plugins
Message-ID <58e20f17.c5c5620a.33d21.7e86__14955.0140173689$1491300493$gmane$org@mx.google.com>
Hello,

I am using Nagios 4.2 and plugins for the same, while using check_load plugin I have configured the check as command[check_load]=/usr/local/nagios/libexec/check_load -w 15,10,5 -c 30,25,20 in nrpe.cfg 
Whereas,

I have 16 core servers. 

Can u explain me how this calculation is set and what is the threshold for this input.

Thank you,
Adil Khan
Hadoop Admin