> > Subject:
> >
> > Re: Fedora 22
> >
> > Sent by:
> >
> > ppc-bounces@lists.fedoraproject.org
> >
> > >> Hi
> > >>   We briefly discussed priorities for Fedora 22 and I had taken an
> > >> action item to start an email conversation about this.  So here is
> > >> what I would like to see for Fedora 22.
> > >>
> > >> 1)  Get the -mcpu and -mtune flags set properly for the LE build.
> > >> Should be -mcpu=power7 -mtune=power8
> > >
> > > done, all packages that honour the Fedora system wide compiler flags
> > > use them, if they don't it's a packaging bug
> > >
> > >> 2) Have a cloud image available
> > >> 3) For BE I would like another subarch.  Same packages as the current
> > >> one but tuned for P8.
> > >
> > > you mean in addition to ppc64p7? can't we just switch ppc64p7 from
> > > -mcpu=power7 -mtune=power7 to -mcpu=power7 -mtune=power8?
> >
> > This makes sense to me as it then mirrors what we have in ppc64le and
> > it saves having more targets.
>
> The disadvantage of this would be to cut off users that have Power 7 systems
> and optimized code.  So why would people want to optimize from Fedora 21 to
> Fedora 22.  You would be taking a big step back in performance.  I don't
> want to suggest keeping a subarch for each type of POWER system out there.  I
> was thinking of keeping two.  So when the next POWER arch that comes out,
> the Power 7 subarch goes away and you would have Power 8 and the new
> Power arch.


The above comment is not correct I was assuming -mcpu=power8 but your comment states
-mcpu=power7 so yes that is reasonable and keeps things consistent across BE and LE.
The only drawback here is that you would be leaving some performance behind as you
would not be using all the new Power 8 instructions.

>
> >
> > >> 4) Looking into if we can get Docker enabled for POWER.  I will send
> > >> out further emails about this as
> > >>     soon as I know more about the current development state
> > >> 5) Start the ground work for a workstation release.  But I think we
> > >> should target the release for Fedora-23.
> > >
> > > yeah, the deadlines in F-22 won't give us enough time to work on it
> >
> > Agreed, ultimately all the packages are built and as a result it's
> > possible to install and test all the main components of Workstation
> > for those that actually have desktop capable hardware to do any
> > development/testing/debug that is required to ensure all the
> > underlying workstation components and dependencies are in a good state
> > for Fedora 23.
> >
> > It's likely there will be work needed on the X stack components like
> > mesa etc to ensure all is working.
> >
> > >>     I seem to remember hearing that there is a quite a lot of work
> > >> involved to get this build going.
> > >
> > > we should have almost everything built (eg. LibreOffice is known to fail
> > > to build), but it's not tested and if broken, it will need to be fixed
> > >
> > > One thing to not forgot is that also the mainline kernel needs to have
> > > the necessary support for the workstation class hw.
> >
> > I think the biggest thing will be the graphics stack. While all the
> > workstation bits are built I doubt they've had wide and varied testing
> > to ensure they're al sufficiently optimised and robust for a good
> > Workstation experience.
> >
> > Peter
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