* Ingo Molnar <[email protected]> wrote:
> > true. I redid my tests with both lockdep and debug-spinlocks turned off:
> >
> > text data bss dec filename
> > 21172153 6077270 3081864 30331287 vmlinux.x32.after
> > 21198222 6077106 3081864 30357192 vmlinux.x32.before
> >
> > with 851 callsites that's a 30.6 bytes win per call site (total 26K) -
> > still not bad at all.
>
> and that was with CONFIG_CC_OPTIMIZE_FOR_SIZE enabled. With
> optimize-for-size disabled the win goes up to 32.6 bytes (total 28K).
i also tried a config with the best size settings (disabling
FRAME_POINTER, enabling CC_OPTIMIZE_FOR_SIZE), and this gives:
text data bss dec filename
20777768 6076042 3081864 29935674 vmlinux.x32.size.before
20748140 6076178 3081864 29906182 vmlinux.x32.size.after
or a 34.8 bytes win per callsite (29K total).
Ingo
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
