On Monday 20 September 2021 09:03:39 Paul Wise 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? (The 64-bit Linux kernel can run 32-bit userspace too).
Yes it can, but slower and at higher latency's. Some apps are on the ragged edge. CNC machinery for instance needs response to an error condition in a few microseconds. The rpi4 can and does do ok, but its 10x slower than my i5's running 3 other machines here. 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>
