CPU 优化参数的该如何设置 Inter(R) Pentium(R) Dual CPU T3400 @ 2.16GHz

Inter(R) Pentium(R) Dual CPU T3400 @ 2.16GHz
这是我的处理器，双核

MAKEOPTS="-j3" 除此之外而能加什么优化参数在make.conf中


另外在编译内核的时候应该如何先择
pentime-Classic
pentium-MMX
pentium-Pro
Perntium-II/Celeron(pre-coppermine)
Perntium-III/Celeron(pre-coppermine)/Pentium-III Xeon
Pentium-M
pentium-4/Celeron(p4-base)/Pentium-4 M/older Xeon




下面的参数在我的机器上应该作何修改
CHOST="i686-pc-linux-gnu" \

CFLAGS="-O3 \

-msse2 \

-mmmx \

-mfpmath=sse \

-mcpu=pentium4 \

-march=pentium4 \

-pipe \

-fomit-frame-pointer" \

CXXFLAGS="-O3 \

-msse2 \

-mmmx \

-mfpmath=sse \

-funroll-loops \

-mcpu=pentium4 \

-march=pentium4 \

-pipe \

-fomit-frame-pointer"

CFLAGS="-march=native -O2 -pipe -fomit-frame-pointer"
CXXFLAGS="${CFLAGS}"