[PATCH] Improve System z support and add some tuning

Mike Frysinger vapier at gentoo.org
Sat Oct 8 02:49:20 CEST 2011

On Friday 07 October 2011 19:46:47 Torbjorn Granlund wrote:
> Mike Frysinger <vapier at gentoo.org> writes:
>   On Friday 07 October 2011 05:48:54 Torbjorn Granlund wrote:
>   > Andreas Krebbel <krebbel at linux.vnet.ibm.com> writes:
>   >   As David already told you there are mainframe virtual machines
>   >   available
>   > 
>   > for developers:
>   > http://www-03.ibm.com/systems/z/os/linux/support/community.html
>   > 
>   > I read the conditions, and they seem alright.
>   > 
>   > But a limit of 90 days makes this uninteresting for GMP.  I intend to
>   > support GMP for more than 90 more days.  :-)
>   if ibm can't find a solution for you, i might be able to get you a user
> acct on Gentoo s390 and s390x systems.  but i'd obviously prefer that ibm
> enable you so you can install whatever :).
> I actually went ahead and made a 90-day account on the IBM system.
> But it is not useful for any purpose.
> The install is a 5 years old Dead Rat system.  The gcc install is 3.4.
> Linux 2.6.9.  A constricted install of severely obsolete GNU software.
> I tried to upgrade parts, but it seems too old to have any updates.  I
> tried to install a usable GCC from sources, but the measly amount of
> virtual RAM provided makes this impossible.
> It is all an embarrassment for IBM, "Hey, try out our machine and help
> us port your software, we provide you an utterly useless system for
> you."  If they wanted to send out the message that their machines are
> useless, then they could not do a better job.
> So please, if you want to see any progress on GMP for S/390, let's not
> rely on IBM.  Guest accounts on maintained systems would be welcome.

np.  the Gentoo systems should be much more up-to-date, but not bleeding edge 
as we try to keep them running the "stable" versions a bit.

send me some contact info off list and i'll set you up:
 - user name
 - e-mail address
 - ssh pub key
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