ld flag that gives ~40% startup time boost

[Patrick McFarland]

On Thursday 22 June 2006 17:09, John Richard Moser wrote:
> Scott James Remnant wrote:
> > On Thu, 2006-06-22 at 21:31 +0100, James Laver wrote:
> >> On a sidenote, I'm rather fond of -O3 where it works (sqlite, for
> >> example), but i typically go -O2 for most of my compiles.
> >
> > -O7 gives the best gains, obviously.
>
> I dunno, libpng seems to favor -O99...
>
> -O3 does things that make binaries load and run slower sometimes, but
> under some conditions makes them faster.  Among other things I think it
> unrolls loops (which can cause excessive page faults during looping).

Which makes an interesting intersection with -Os which goes for smallest 
optimized code size instead of fastest optimized code size. Apple, of course, 
uses -Os because it rocks hard on PPC.

> > Scott
>
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-- 
Patrick McFarland || www.AdTerrasPerAspera.com
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