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Re: [RFC PATCH] configure: deprecate 32 bit build hosts


From: Gerd Hoffmann
Subject: Re: [RFC PATCH] configure: deprecate 32 bit build hosts
Date: Fri, 27 Sep 2019 10:55:46 +0200
User-agent: NeoMutt/20180716

  Hi,

> That leaves armv7 as the only 32-bit arch in Fedora that is somewhat
> active & maintained. I don't have any real insight on whether any
> armv7 (Fedora) users are making much use of QEMU/KVM though, either
> system or user emulation. 

Played with system emulation a while back.  I doubt this is used much
in practice.  It's very slow for various reasons (no gic, no armv8 arch
updates to support kvm virt better, slow sdcard/usb I/O).  TCG on a
beefy x86 box is roughly the same speed.  Also 1G of memory isn't that
much even without considering virtual machines.

The rpi4 with 4G (disclaimer: don't have one) probably works better.
But note they are finally working on a 64bit kernel for raspbian,
which I expect is only a first step for better 64bit support.

cheers,
  Gerd




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