[mdlug] Linux on Intel Core Duo

[Raymond McLaughlin]

R. Kannan wrote:
> Hi,
> 
> I have been running SuSE 10.1 on my laptop which has Intel Core Duo 1.66GHzfor the past two years but has never bothered to check the following (Duh). When I look at the cpu information from Windows XP, it shows both CPUs. But on the Linux side 'cat /proc/cpuinfo' only shows one processor as
> 
> processor       : 0
> vendor_id       : GenuineIntel
> cpu family      : 6
> model           : 14
> model name      : Genuine Intel(R) CPU           T2300  @ 1.66GHz
> stepping        : 8
> cpu MHz         : 1000.000
> cache size      : 2048 KB
> fdiv_bug        : no
> hlt_bug         : no
> f00f_bug        : no
> coma_bug        : no
> 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 nx constant_tsc pni monitor est tm2 xtpr
> bogomips        : 3330.34
> 
> Is Linux using both processors?

No.

> If so how can I find out?

There would be a second entry for "processor       : 1" in addition to 
the one for "processor       : 0"

With SuSE 10.1 there was a kerenlsmp package separate from 
kernel-default.  Beginning with 10.2  "The kernel-default package 
contains the standard kernel for both uniprocessor and multiprocessor 
systems. The kernel comes with SMP support and runs with only minimal 
overhead on uniprocessor systems. There is no kernel-smp package anymore."

<ftp://mirrors.kernel.org/opensuse/distribution/10.2/repo/oss/docu/RELEASE-NOTES.en.html#10>

It is odd that YAST didn't detect your smp bios during the install 
process. It usually does.