On Monday 20 September 2021 09:39:00 lkcl wrote: > On September 20, 2021 1:03:39 PM UTC, Paul Wise <[email protected]> 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 -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis Genes Web page <http://geneslinuxbox.net:6309/gene>
