Hi Ingo Thanks for your correcting. Because thinking of most of 32bit CPU belong to low-end CPUs(smaller cache), they should more emphasize i-cache miss, I chose Os for them. I will test it and send out result ASAP.
Regards Ling 2013/1/27, Ingo Molnar <mi...@kernel.org>: > > * ling.ma.prog...@gmail.com <ling.ma.prog...@gmail.com> wrote: > >> In this version we also append CONFIG_CC_OPTIMIZE_FOR_SIZE for i386. > > Were those measurements done on i386 as well? I'd be content > with keeping the current minimal - and mostly documentary - > patch that only does this on 64-bit. I just wanted to record the > current benchmark numbers mostly. > > Also see the discussion with Linus - this is by no far an > unconditionally good option and we'll probably have to wait for > more GCC action (-Ok or so) before being able to enable size > optimizations everywhere without unacceptable trade-offs. > > Thanks, > > Ingo > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
