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aCOSwt Bodhisattva
Joined: 19 Oct 2007 Posts: 2537 Location: Hilbert space
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Posted: Tue Dec 11, 2012 11:53 am Post subject: A kernel patch exhibiting "small but real speed increas |
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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 ! _________________
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MustrumR n00b
Joined: 15 Nov 2011 Posts: 71 Location: Right here
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Posted: Tue Dec 11, 2012 5:32 pm Post subject: |
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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 n00b
Joined: 06 Jun 2012 Posts: 64 Location: Ireland
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Posted: Tue Dec 11, 2012 9:40 pm Post subject: |
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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. _________________ CFLAGS=" -O999999" |
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