Re: Debian on Pine64 H64B?
On Monday 20 September 2021 09:39:00 lkcl wrote:
> On September 20, 2021 1:03:39 PM UTC, Paul Wise <pabs@debian.org>
wrote:
> >On Mon, Sep 20, 2021 at 9:19 AM LinAdmin wrote:
> >> What I would like to see is that the official arm kernels
> >
> >automagically built by Debian could run unchanged on RaPi 32 & 64
> > bit.
> >
> >The RPi 4 is 64-bit, is there a reason for running a 32-bit Linux
> >kernel?
>
> yes: significantly reduced executable size, significantly reduced
> memory footprint, resulting in better L1/L2 cache usage with
> consequent power reduction.
>
> the power consumption of the Cortex A53 compared to the Cortex A7
> jumped TEN PERCENT and that is down to 64 bit executables. to
> compensate, ARM now recommends 50% larger L1 caches, which
> automatically come with an irrediemable power consumption penalty even
> when running 32 bit binaries.
>
> whilst everyone is rushing headlong into 64 bit in desktop and server
> land, the abandonment is extremely alarming for the embedded world
> where power and resources really matter, and can make the difference
> between a failed and a successful product.
>
> l.
+10 or more. For those of us who need the armhf variant its a basic
requirement.
Cheers, Gene Heskett
--
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- Louis D. Brandeis
Genes Web page <http://geneslinuxbox.net:6309/gene>
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