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Am 18.11.2011 01:04, schrieb Neil Bothwick: |
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> If you're feeling adventurous, GCC 4.6, currently masked for |
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> testing, has specific -march options for the i7 and Sandybridge i7, |
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> according to the Gentoo Wiki CFLAGS page. |
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Being adventurous now. |
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compiled sys-devel/gcc-4.6.2, and set |
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CFLAGS="-O2 -march=corei7-avx -mcx16 -msahf -mno-movbe -maes -mpclmul |
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-mpopcnt -mno-abm -mno-lwp -mno-fma -mno-fma4 -mno-xop -mno-bmi |
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-mno-tbm -mavx -msse4.2 -msse4.1 --param l1-cache-size=32 --param |
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l1-cache-line-size=64 --param l2-cache-size=8192 -mtune=corei7-avx" |
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Built my kernel for a start, runs fine. |
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Considering to emerge world after a nice backup ;-) |
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Has anyone done that already? Successfully? |
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Stefan |
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