big.LITTLE status for rk3399/rockpro64?

Danilo Egêa Gondolfo danilo at freebsd.org
Mon Jul 13 18:06:36 UTC 2020


On Mon, Jul 13, 2020 at 6:27 PM Vincent Milum Jr <freebsd-arm at darkain.com>
wrote:

> I'm curious about this, too. I recently got the Pinebook Pro up and
> running, and would like to start testing all 6 CPU cores for doing
> compilation tasks.
>
> On Mon, Jul 13, 2020 at 10:19 AM Josh Howard <bsd at zeppelin.net> wrote:
>
> > It looks like it's been a couple of months since there's been any news
> > around it. Anything in particular still needed as far as testing or
> > debugging that goes? I have a Rockpro64 and a RockPi4e (though I don't
> have
> > that booting yet.) that I could potentially test on.
> >
> > Thanks
> >
> >
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The number of CPUs was limited here
https://svnweb.freebsd.org/base?view=revision&revision=360321

If you remove the hw.ncpu from your loader.conf you'll be able to use all
the 6 cores.

Although the commit message mentions a "known issue" with the big.LITTLE
architecture, I was able to use all the 6 cores to rebuild the entire
system and I didn't face any issue.

Maybe manu@ could give us some context about that.


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