On 10/21/2013 03:09 PM, Silvio Siefke wrote:
> Hello,
>
> on my netbook Acer Aspire One D255 is running Gentoo amd64 but its so slow.
> I have Samsung NC10 and there is running Gentoo better and that i understand
> not so really.
>
> What Cflags i should use, at moment i use
>
> CFLAGS="-O2 -march=atom -mtune=atom -mssse3 -mfpmath=sse -fomit-frame-pointer
> -pipe"
> CXXFLAGS="${CFLAGS}"
> CHOST="x86_64-pc-linux-gnu"
> MAKEOPTS="-j3"
>
> processor : 0
> vendor_id : GenuineIntel
> cpu family : 6
> model : 28
> model name : Intel(R) Atom(TM) CPU N550 @ 1.50GHz
> stepping : 10
> microcode : 0x107
> cpu MHz : 1500.000
> cache size : 512 KB
> physical id : 0
> siblings : 4
> core id : 0
> cpu cores : 2
> apicid : 0
> initial apicid : 0
> fpu : yes
> fpu_exception : yes
> cpuid level : 10
> wp : yes
> flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
> pat clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm
> constant_tsc arch_perfmon pebs bts nopl aperfmperf pni dtes64 monitor ds_cpl
> est tm2 ssse3 cx16 xtpr pdcm movbe lahf_lm dtherm
> bogomips : 2992.64
> clflush size : 64
> cache_alignment : 64
> address sizes : 32 bits physical, 48 bits virtual
> power management:
>
> Thats from 0 to 3. It were nice when someone can help.
>
>
> Thank you & Good Day
> Silvio
>
http://wiki.gentoo.org/wiki/CFLAGS
use native - it does the working out for you if GCC is new
CFLAGS="-march=native -O2 -pipe"
