What is the “Secondary CPUs” in TX2i?

What is the “Secondary CPUs”?
and What does happen if i enable them?
I read it in “Related Tools and Teqniques” in NVIDIA Jetson Linux Developer Guide

TX2i has Denver 2 and Cortex-A57 CPU clusters, you can find more info from the Jetson TX2 Series Module Data Sheet at the Jetson Download Center | NVIDIA Developer.

That’s to have the power and performance efficient purpose, you can find howto use it from NVIDIA Jetson Linux Driver Package Software Features : Clock Frequency and Power Management | NVIDIA Docs

You can continue studying it to get more understanding.

One way to enable the Denver cores (they can be told to be used manually already with specific programs, but are probably not automatically used) is to append " isolcpus=" at the end of the “APPEND” key/value line in “/boot/extlinux/extlinux.conf”.

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