Re: how many users of FreeBSD 12 do we have on powerpc?

Remember upgrading a powerpc64 from 12.x to 13.x requires a full
reinstall due to ABI change during switch from gcc to llvm that makes
it binary-incompatible with older releases (13.0  uses modern
OpenPower ELF V2 ABI).
13 is definitively better with a modern compiler and many improvements
on kernel, memory management, more drivers ported, including virtio
that you can use with KVM or QEMU to improve network and disk
throughput.

[]'s
Alfredo

On Thu, Feb 11, 2021 at 3:24 PM Cameron Berkenpas via freebsd-ppc
<[email protected]> wrote:
>
> I have 2 server's (kvm instances) running on POWER9 that I will upgrade
> to 13.0-RELEASE as soon as it's released. I know you asked about 12, but
> maybe this data point is still useful.
>
> I have 2 FreeBSD 13 VM's across 2 physical POWER9 hosts (so 1 VM per
> host) that I've been using to follow the development of 13. Other than
> the occasional hiccup, 13 seems quite a bit a bit better than 12.2 on
> POWER especially after the switch from gcc to llvm settled down.
>
> On 2/10/21 2:39 PM, Mark Linimon wrote:
> > So I want to get an idea if we can start trying to move FreeBSD/powerpc*
> > users from 12.X to 13.0 once 13.0 is released.
> >
> > The problem is that we have limitations on:
> >
> >   - hardware resources w/rt building ports on 3 branches
> >
> >   - human resources trying to support 3 branches
> >
> > The powerpc ports team (the entire handful of us) is talking about
> > dropping ports building for 12-STABLE in favor of starting to build
> > 14-CURRENT.
> >
> > How many people will this affect if we do so?
> >
> > fwiw, I personally believe 13.0 will be a complete superset except for:
> >
> >   - ports that fail due to duplicate_symbol
> >
> > and all of those are problems shared with even amd64.
> >
> > (Also, I personally believe that it is fair to say "we do not really
> > support powerpc* on 10.X or 11.Y.  Please upgrade.")
> >
> > How many people will these changes effect?  It's time to speak up ...
> >
> > mcl
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