Convert nanocore to core CPU?

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im confuse to convert nanocore to core of CPU my formula is:

nanocore / 1000000000 = CORE (1000000000 is 1 billion)

if my linux os have 10 core. I want to calculator percentage cpu usage. This formula is:

(nanocore / 1000000000) / 10 * 100 = percentage cpu usage ?

is it right ?

1 Answers

i think it you calculation exactly

nanocore / 1000000000 = core
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