Why do Gentoo-fags always pick CFLAGS that are inappropriate for the processor architecture? Unrolling loops (and a lot of other optimisations) will blow your cache, and on an x86 or PowerPC, everything else is insignificant compared to the cost of a main memory fetch. Just use -pipe -Os (and maybe -m64).
Name:
Anonymous2007-05-25 8:29 ID:Uw1Tsurg
Because Gentoo makes non-programmers feel like programmers, WOW I can compile the kernel using this webpage, I'm EXPERT PROGRAMMER... etc...
>>8
The trace cache in P4s and C2Ds already does a form of eager loop unrolling in hardware. So no benefit except for bloat.
Name:
Anonymous2007-05-25 11:01 ID:aX0qC0yE
>>6
BENCHMARKS MOTHERFUCKER, DO YOU USE THEM?
The fact that my processor isn't intel may have something to do with the drastic speedup i get from loop unrolling...
Also, on-die memory controller FTW!
i use gcc [-c│-S│-E] [-std=standard]
[-g] [-pg] [-Olevel]
[-Wwarn...] [-pedantic]
[-Idir...] [-Ldir...]
[-Dmacro[=defn]...] [-Umacro]
[-foption...] [-mmachine-option...]
[-o outfile] infile...
EXPERT PROGRAMMERS USE ALL THE FLAGS AND OPTIONS AVAILABLE
Bringing /prog/ back to its people
All work and no play makes Jack a dull boy
All work and no play makes Jack a dull boy
All work and no play makes Jack a dull boy
All work and no play makes Jack a dull boy
All work and no play makes Jack a dull boy
All work and no play makes Jack a dull boy
All work and no play makes Jack a dull boy
All work and no play makes Jack a dull boy
All work and no play makes Jack a dull boy
All work and no play makes Jack a dull boy
All work and no play makes Jack a dull boy
All work and no play makes Jack a dull boy
All work and no play makes Jack a dull boy
All work and no play makes Jack a dull boy
All work and no play makes Jack a dull boy
All work and no play makes Jack a dull boy
All work and no play makes Jack a dull boy
All work and no play makes Jack a dull boy
All work and no play makes Jack a dull boy
All work and no play makes Jack a dull boy
All work and no play makes Jack a dull boy
All work and no play makes Jack a dull boy
All work and no play makes Jack a dull boy
All work and no play makes Jack a dull boy
All work and no play makes Jack a dull boy
All work and no play makes Jack a dull boy
All work and no play makes Jack a dull boy
All work and no play makes Jack a dull boy