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Re: Why not 03 ?



On Sun, 01 Jun 2014, Tollef Fog Heen wrote:
> > FWIW, the recent port of Ubuntu to ppc64el uses -O3 as the default, because
> > IBM has broad experience in resolving performance issues for their own
> > hardware and have found that -O3 gives an overall better experience for
> > their customers.  It will be difficult for Debian to gather the same kind of
> > information across all its architectures, but we shouldn't conclude, just
> > because it's difficult to know the right answer, that -O2 is definitely the
> > right answer.
> 
> It sounds like we want to stop recommending any particular level in
> Policy and just let the architecture toolchain default to the
> recommended value for that architecture, and only override when there's
> a need.

No.  People mess with this rather cluelessly.  As long as it is not "MUST
use -Ofoo", we really should say something in policy.

-- 
  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh


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