Re: cores have different coretemp

[Kurt Schreiner <ks%ub.uni-mainz.de@localhost>]

Hi,

On Fri, Jul 18, 2008 at 12:43:22AM +0200, Joel CARNAT wrote:
> 
> I have a Centrino Duo (Intel Core2 U7600) on which
> envstat show different coretemp for the 2 cores.It
> seems weird to me that they don't have the same
> temperature...
> 
> Is this expectable or do I have a hardware problem ?
Hm, I'm not shure about the notebook processors, but on my quad-core
Q6600 I see the following which is OK, I think

Kurt

system idling along:

>-331: envstat 
                       Current  CritMax  CritMin  CritCap     Unit
[coretemp0]
  cpu0 temperature:     38.000                                degC
[coretemp1]
  cpu1 temperature:     39.000                                degC
[coretemp2]
  cpu2 temperature:     32.000                                degC
[coretemp3]
  cpu3 temperature:     36.000

and after a little workout:

>-335: envstat 
                       Current  CritMax  CritMin  CritCap     Unit
[coretemp0]
  cpu0 temperature:     43.000                                degC
[coretemp1]
  cpu1 temperature:     43.000                                degC
[coretemp2]
  cpu2 temperature:     35.000                                degC
[coretemp3]
  cpu3 temperature:     39.000


>-342: sudo cpuctl identify 1
cpu3: Intel Core 2 (Merom) (686-class), 2400.21 MHz, id 0x6fb
cpu3: features bfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR>
cpu3: features bfebfbff<PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX>
cpu3: features bfebfbff<FXSR,SSE,SSE2,SS,HTT,TM,SBF>
cpu3: features2 
e3bd<SSE3,DTES64,MONITOR,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM>
cpu3: features3 20100800<SYSCALL/SYSRET,XD,EM64T>
cpu3: "Intel(R) Core(TM)2 Quad CPU    Q6600  @ 2.40GHz"
cpu3: I-cache 32KB 64B/line 8-way, D-cache 32KB 64B/line 8-way
cpu3: L2 cache 4MB 64B/line 16-way
cpu3: ITLB 128 4KB entries 4-way
cpu3: DTLB 256 4KB entries 4-way, 32 4MB entries 4-way
cpu3: Initial APIC ID 3
cpu3: Cluster/Package ID 0
cpu3: Core ID 3
cpu3: family 06 model 0f extfamily 00 extmodel 00