I have been using ethOS for sometime now and love the stats panel to manage all of my miners, however there is one variable I do not know how to read.  What is the "L - 5 minute load average (sysload)" value?  It seems like 90% of my miners are running a sysload between 0.2-0.5, but some are running at 1.4-1.6 and even one at 2.4.  If I look at the historical graph for one of the miners running at 1.4, I see that it was running for a long period at 0.2 and then jumped to 1.4 for several days.  How do I interpret this value and are the any actions I should take?

Thanks.