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Re: RFC: Optimizing for 386



On Thu, 2005-01-20 at 08:51 +0000, Caolan McNamara wrote:
> On Wed, 2005-01-19 at 19:16 -0500, Alan Cox wrote:
> > On Wed, Jan 19, 2005 at 06:24:16PM +0100, Peter Backlund wrote:
> > > Has anyone been testing -Os (optimize for size) instead of -O2 on any
> > > greater scale? Fitting as much as possible in L1-cache is a great way to
> > > obtain high performance. 
> > 
> > I run with almost all of gnome -Os and its faster where I can do tests - but
> > its hard to be scientific
> 
> On the OOo front, the compile flags for 2.0 will be/should be 
> "-Os -fno-strict-aliasing" the strict aliasing is apparently why 1.1.X
> becomes unstable when compiled just with -Os.

Good to know, maybe we should do some tests on that again with 1.1.x and
see what we get...

Dan


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