HMP solution for Odroid N2.

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siriuxliu
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HMP solution for Odroid N2.

Unread post by siriuxliu » Wed Feb 12, 2020 1:40 pm

Hi, colleagues,
I'm looking for the ARM development board with HMP solution. I'm not sure whether the Odroid N2 comes with the HMP solution? Or its hardware support HMP however still need some efforts on OS?
Any ideas will be appreciated:)
Bests!

brad
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Re: HMP solution for Odroid N2.

Unread post by brad » Wed Feb 12, 2020 3:08 pm

siriuxliu wrote:
Wed Feb 12, 2020 1:40 pm
Hi, colleagues,
I'm looking for the ARM development board with HMP solution. I'm not sure whether the Odroid N2 comes with the HMP solution? Or its hardware support HMP however still need some efforts on OS?
Any ideas will be appreciated:)
Bests!
The N2 has 2 types of cores (well 3 actually)

A73 x 4 - aarch64 power cpu (speculation, out of order, etc)
A53 x 2 - aarch64 economy
M4 x 1 - minimal 32 bit cpu which runs always on domain, bootloader, and some peripherals. you generally cannot schedule to this core from the OS.

Hardkernel kernel and Mainline Linux kernel should fully support HMP scheduling and you can lock your processes to whichever cores you like.
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siriuxliu (Thu Feb 13, 2020 2:39 am)

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Re: HMP solution for Odroid N2.

Unread post by rooted » Wed Feb 12, 2020 3:59 pm

The XU4 uses HMP as well, it also has 8 cores vs 6. If you just want to get to know HMP the XU4 will suffice unless you need 64bit, then the N2 is what you want.

Both devices have similar CPU performance with the N2 generally performing a bit better, the N2 is much more power efficient.
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siriuxliu (Thu Feb 13, 2020 2:39 am)

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