difference between /proc/cpuinfo and AMD product specs
Robert P. J. Day
rpjday at crashcourse.ca
Thu Feb 4 20:06:19 UTC 2010
On Thu, 4 Feb 2010, Steve Berg wrote:
>
> >
> > undoubtedly going to regret asking this, but i installed f12 on a
> > gateway laptop, whose /proc/cpuinfo reads (in part):
> >
> > model name : AMD Turion(tm) 64 X2 Mobile Technology TL-60
> > stepping : 2
> > cpu MHz : 800.000
> > ...
> > flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca
> > cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt
> > rdtscp lm 3dnowext 3dnow rep_good extd_apicid pni cx16 lahf_lm
> > cmp_legacy svm extapic cr8_legacy 3dnowprefetch
> >
> > the above *seems* to suggest an oddly slow processor (800 MHz), but
> > the "svm" flag tells me it has AMD H/W virt support, correct?
> >
> > however, if i pop over to the corresponding(?) AMD page:
> >
> > http://products.amd.com/en-na/NotebookCPUDetail.aspx?id=18&f1=&f2=&f3=&f4=&f5=&f6=&f7=&f8=&f9=&f10=
> >
> > that page suggests that that processor is 2 GHz, but that there is
> > *no* H/W virt support.
> >
> > i'm confused. am i just misreading something?
>
> You've probably got the cpuspeed daemon running and it's throttling
> the CPU since there's not enough load on the system to need the
> additional clock cycles.
gaaaah. of course, that was it. thanks. now to figure out the
virtualization oddity.
rday
--
========================================================================
Robert P. J. Day Waterloo, Ontario, CANADA
Linux Consulting, Training and Kernel Pedantry.
Web page: http://crashcourse.ca
Twitter: http://twitter.com/rpjday
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