I can't tell if all 4 cores of my i7 are being used

[TheBird]

I finally got my first successful install done and got a working KDE up and running. I checked the system monitor application to see if everything was going well when I saw that only one cpu was listed on the system load tab. Normally, I'd expect there to be a separate CPU entry for each core. cat /proc/cpuinfo printed this:

Code: Select all

processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 26
model name      : Intel(R) Core(TM) i7 CPU         930  @ 2.80GHz
stepping        : 5
cpu MHz         : 2801.000
cache size      : 8192 KB
physical id     : 0
siblings        : 1
core id         : 0
cpu cores       : 1
apicid          : 0
initial apicid  : 0
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 11
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 nx rdtscp lm constant_tsc up arch_perfmon pebs bts xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips        : 5613.01
clflush size    : 64
cache_alignment : 64
address sizes   : 36 bits physical, 48 bits virtual
power management:

The thing that really bothers me is this:

Code: Select all

cpu cores       : 1

I had my processor type selected correctly when configuring the kernel, but here's my menuconfig kernel configuration file if anyone wants to look through it to see if I messed up somewhere (even if I did I can just recompile it again. Had to do that a few times now already): http://pastebin.com/YbiLyqeX

Thanks in advance.

[rh1]

Are you deliberately trying to use 32bit? Your kernel is configured that way. Not sure if that is part of the problem
If your not trying to use 32bit, did you use a 64 bit install cd?

[dmpogo]

Did you enable SMP in kernel ?

[TheBird]

Are you deliberately trying to use 32bit? Your kernel is configured that way. Not sure if that is part of the problem
If your not trying to use 32bit, did you use a 64 bit install cd?

I was intending to use 32bit, so I don't that's the problem.

Did you enable SMP in kernel?

Yes, SMP is enabled.




Right now, I'm gonna go enable all the extra SMP related options I can find until some combination works, because I have no idea why it's acting like this.

[suicidal_orange_II]

Random thought - are all the cores enabled in BIOS? The attached .config looks fine to me...

[TheBird]

Random thought - are all the cores enabled in BIOS? The attached .config looks fine to me...

Yes, all the cores are enabled and they work just fine in Windows 7.

This is really baffling.

[Etal]

Does it show the correct number of cores with a livecd?

[trilexx]

I believe you should actually get this output 8 times, because all i7 cores are hyperthreaded. On my i7 L620, which is a dual core mobile processor, I get this output 4 times, two times for two hyperthreaded cores. Could it be you have set apci=off as kernel boot parameter? If so, try without. Do you have ACPI enabled in the BIOS?

greetings,
trilexx

[dmpogo]

I believe you should actually get this output 8 times, because all i7 cores are hyperthreaded.

Correct

[Naib]

can you paste your .config for your running kernel
Also could you boot from whatever install medium you used and see what /proc/cpuinfo shows. this will determine if it is kernel or bios related

[suicidal_orange_II]

can you paste your .config for your running kernel

It's linked in the first post if you'd like a look