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on 07/11/2007 08:20 PM Hemmann, Volker Armin wrote the following: |
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>> I don't see _any_such_flags_ in /etc/make.conf.example. |
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>> I use: |
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>> CFLAGS="-march=k8 -fomit-frame-pointer -pipe -O2" |
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>> CXXFLAGS="${CFLAGS}" |
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>> |
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>> System: notebook AMILO Xa 1526 with AMD Turion(tm) 64 X2 Mobile |
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>> Technology TL-56 |
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>> |
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>> Am I missing something? |
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> |
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> if you have 'pni' in /proc/cpuinfo you should add -msse3. |
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> -fomit-frame-pointer is useless/not needed on amd64-. |
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I do. |
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|
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# cat /proc/cpuinfo |
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processor : 0 |
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vendor_id : AuthenticAMD |
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cpu family : 15 |
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model : 72 |
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model name : AMD Turion(tm) 64 X2 Mobile Technology TL-56 |
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stepping : 2 |
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cpu MHz : 800.000 |
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cache size : 512 KB |
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physical id : 0 |
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siblings : 2 |
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core id : 0 |
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cpu cores : 2 |
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fpu : yes |
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fpu_exception : yes |
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cpuid level : 1 |
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wp : yes |
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flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge |
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mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext |
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fxsr_opt rdtscp lm 3dnowext 3dnow pni cx16 lahf_lm cmp_legacy svm cr8_legacy |
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bogomips : 3611.22 |
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TLB size : 1024 4K pages |
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clflush size : 64 |
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cache_alignment : 64 |
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address sizes : 40 bits physical, 48 bits virtual |
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power management: ts fid vid ttp tm stc |
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|
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processor : 1 |
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vendor_id : AuthenticAMD |
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cpu family : 15 |
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model : 72 |
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model name : AMD Turion(tm) 64 X2 Mobile Technology TL-56 |
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stepping : 2 |
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cpu MHz : 800.000 |
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cache size : 512 KB |
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physical id : 0 |
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siblings : 2 |
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core id : 1 |
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cpu cores : 2 |
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fpu : yes |
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fpu_exception : yes |
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cpuid level : 1 |
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wp : yes |
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flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge |
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mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext |
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fxsr_opt rdtscp lm 3dnowext 3dnow pni cx16 lahf_lm cmp_legacy svm cr8_legacy |
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bogomips : 1603.39 |
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TLB size : 1024 4K pages |
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clflush size : 64 |
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cache_alignment : 64 |
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address sizes : 40 bits physical, 48 bits virtual |
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power management: ts fid vid ttp tm stc |
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|
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*PS: |
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1) Should I add any other flags also, besides adding -msse3 |
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(CFLAGS="-march=k8 -msse3 -pipe -O2") |
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2) Just curious: Why is there such a big difference between the 2 CPUs' |
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bogomips values reported? |
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-- |
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