Re: kernel + gcc 4.1 = several problems

From: l . genoni
Date: Wed Jan 03 2007 - 12:07:20 EST



Just to make clearer why I am so curious, this from X86_64 X2 3800+:

DarkStar:{venom}:/tmp> gcc -DCMOV -Wall -O2 t.c
DarkStar:{venom}:/tmp>time ./a.out
600000000

real 0m0.151s
user 0m0.150s
sys 0m0.000s
DarkStar:{venom}:/tmp> gcc -Wall -O2 t.c
DarkStar:{venom}:/tmp> time ./a.out
600000000

real 0m0.176s
user 0m0.180s
sys 0m0.000s
DarkStar:{venom}:/tmp>gcc -m32 -DCMOV -Wall -O2 t.c
DarkStar:{venom}:/tmp>time ./a.out
600000000

real 0m0.152s
user 0m0.160s
sys 0m0.000s
DarkStar:{venom}:/tmp>gcc -m32 -Wall -O2 t.c
DarkStar:{venom}:/tmp>time ./a.out
600000000

real 0m0.200s
user 0m0.200s
sys 0m0.000s

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/