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A kernel patch exhibiting "small but real speed increases"
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aCOSwt
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PostPosted: Tue Dec 11, 2012 11:53 am    Post subject: A kernel patch exhibiting "small but real speed increas Reply with quote

To the intention of ricers, patchers, hackers...

I'd like to forward an information from graysky telling us about a new patch written by jeroen AT ABOUT linuxforge DOT net and that you can find there : http://repo-ck.com/source/gcc_patch/kernel-36-gcc47-1.patch.gz

I did not personally test it... well... it requires gcc-4.7 and I don't get it... yet ! :twisted:
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MustrumR
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PostPosted: Tue Dec 11, 2012 5:32 pm    Post subject: Reply with quote

Simply passes a better -march=... to gcc. I set KCFLAGS to supply my own cflags to the kernel so it doesn't affect me.
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LiamOS
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PostPosted: Tue Dec 11, 2012 9:40 pm    Post subject: Reply with quote

MustrumR wrote:
Simply passes a better -march=... to gcc. I set KCFLAGS to supply my own cflags to the kernel so it doesn't affect me.

That's all it does? I've been doing that since I checked the kernel makefile and realised it wasn't happening already.

Nothing seems to have fallen apart either, even with -O3 and -flto, but I only tried those to see if I could break it with different flags.
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