Re: is it em64t ?
Le jeudi 05 janvier 2006 à 11:09 +0100, Erik Mouw a écrit :
> On Thu, Jan 05, 2006 at 10:22:51AM +0100, Koen Vermeer wrote:
> > On Thu, 2006-01-05 at 17:04 +0800, zzz haha wrote:
> > > i have a p4 machine. how can i know if it has em64t?
> >
> > A somewhat stupid but nevertheless possibly useful suggestion: Try to
> > boot the Debian x86-64 installation CD. If it works, you either have an
> > em64t or an amd64 processor. Since you state your machine is a p4, you
> > may safely rule out the latter possibility.
> >
> > Alternatively, try to find out what processor is in there, and check the
> > Intel website. Maybe there's also a flag in /proc/cpuinfo that indicates
> > em64t capabilities.
>
> The "lm" flag in /proc/cpuinfo tells the CPU can do "long mode", which
> means it has the 64 bit extensions.
By the way: I need to work on a Xeon machine remotely, and I wondered if
it had multiple processors (it is not a dual-core) or simply
HyperThreading. How can I distinguish? Here is /proc/cpuinfo:
processor : 0
vendor_id : GenuineIntel
cpu family : 15
model : 4
model name : Intel(R) Xeon(TM) CPU 3.00GHz
stepping : 1
cpu MHz : 3001.253
cache size : 1024 KB
physical id : 0
siblings : 2
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 5
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 lm
pni monitor ds_cpl cid
bogomips : 5947.39
processor : 1
vendor_id : GenuineIntel
cpu family : 15
model : 4
model name : Intel(R) Xeon(TM) CPU 3.00GHz
stepping : 1
cpu MHz : 3001.253
cache size : 1024 KB
physical id : 0
siblings : 2
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 5
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 lm
pni monitor ds_cpl cid
bogomips : 5996.54
Thanks
> Erik
--
Jérôme Warnier
FLOSS Consultant
http://beeznest.neteb
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