Difference between CPU util and load, what does it mean when they are high, what can be inferred by high/low, low/high?

Basically, load average is the amount of traffic to your CPU(s) over the past 1, 5, and 15 minutes. Generally you want this number to be below the number of CPU(s)/cores you have. 1.0 on a single core machine means it’s using the CPU to it’s maximum, and anything above that means things are getting queued.

/proc/cpuinfo | wc -l

uptime

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source:  blog.scoutapp.com/articles/2009/07/31/understanding-load-averages