Re: [gentoo-user] Detecting 64 bit Intel chips

[Andrew MacKenzie]

+++ Chris Brennan [gentoo-user] [Wed, Mar 05, 2008 at 11:36:47AM -0500]:
> Here is the output of my cpuinfo, I'll point out where it will mean
> 64bit. For the sake of this demonstration, I have only pasted one (1) CPU.
>
> xaero@Leviathan ~ $ cat /proc/cpuinfo
> processor	: 0
> vendor_id	: AuthenticAMD
> cpu family	: 15
> model		: 75
> model name	: AMD Athlon(tm) 64 X2 Dual Core Processor 4200+ <-- Here
> will be your first indication. 64 bit processors, weather they are
> SPARC, AMD or intel, must identify themselves clearly in the model name
> field.
They do identify themselves, but they may not indicate 64 vs. 32 bit.  

From my Core2 running 64-bit:
processor       : 3
vendor_id       : GenuineIntel
cpu family      : 6
model           : 15
model name      : Intel(R) Core(TM)2 Quad CPU    Q6600  @ 2.40GHz
stepping        : 11
cpu MHz         : 2400.000
cache size      : 4096 KB
physical id     : 0
siblings        : 4
core id         : 3
cpu cores       : 4
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 pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx
lm constant_tsc arch_perfmon pebs bts rep_good pni monitor ds_cpl vmx est
tm2 ssse3 cx16 xtpr lahf_lm
bogomips        : 4799.96
clflush size    : 64
cache_alignment : 64
address sizes   : 36 bits physical, 48 bits virtual
power management:


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