8.1-PRERELEASE: CPU packages not detected correctly

pluknet pluknet at gmail.com
Thu Aug 19 19:16:00 UTC 2010


On 19 August 2010 21:27, Andriy Gapon <avg at icyb.net.ua> wrote:
> on 19/08/2010 19:56 pluknet said the following:
>> CPU: Intel(R) Xeon(R) CPU           E5520  @ 2.27GHz (2763.12-MHz 686-class CPU)
>>   Origin = "GenuineIntel"  Id = 0x106a5  Family = 6  Model = 1a  Stepping = 5
>>   Features=0x1781fbbf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,MMX,FXSR,SSE,SSE2,HTT>
>>   Features2=0x80982201<SSE3,SSSE3,CX16,SSE4.1,SSE4.2,POPCNT,<b31>>
>>   TSC: P-state invariant
>> real memory  = 4194304000 (4000 MB)
>> avail memory = 3932786688 (3750 MB)
>> ACPI APIC Table: <Xen HVM>
>> FreeBSD/SMP: Multiprocessor System Detected: 3 CPUs
>> FreeBSD/SMP: 0 package(s) x 1 core(s) x 32 HTT threads
>>  cpu0 (BSP): APIC ID:  0
>>  cpu1 (AP/HT): APIC ID:  2
>>  cpu2 (AP/HT): APIC ID:  4
>
> Thanks!
> BTW, what does Intel's code report?
> Jung-uk's convenience script:
> http://people.freebsd.org/~jkim/cpu_topology-12212009.sh
>

        Software visible enumeration in the system:
Number of logical processors visible to the OS: 3
Number of logical processors visible to this process: 3
Number of processor cores visible to this process: 3
Number of physical packages visible to this process: 1

        Hierarchical counts by levels of processor topology:
 # of cores in package  0 visible to this process: 3 .

        Affinity masks per SMT thread, per core, per package:
Individual:
        P:0, C:0, T:0 --> 1

Core-aggregated:
        P:0, C:0 --> 1
Individual:
        P:0, C:1, T:0 --> 2

Core-aggregated:
        P:0, C:1 --> 2
Individual:
        P:0, C:2, T:0 --> 4

Core-aggregated:
        P:0, C:2 --> 4

Pkg-aggregated:
        P:0 --> 7


        APIC ID listings from affinity masks
OS cpu   0, Affinity mask       01 - apic id 0
OS cpu   1, Affinity mask       02 - apic id 2
OS cpu   2, Affinity mask       04 - apic id 4


Package 0 Cache and Thread details
L1D is Level 1 Data cache, size(KBytes)= 32,  Cores/cache= 1, Caches/package= 3
L1I is Level 1 Instruction cache, size(KBytes)= 32,  Cores/cache= 1,
Caches/package= 3
L2 is Level 2 Unified cache, size(KBytes)= 256,  Cores/cache= 1,
Caches/package= 3
L3 is Level 3 Unified cache, size(KBytes)= 8192,  Cores/cache= 1,
Caches/package= 3
      +----+----+----+
Cache | L1D| L1D| L1D|
Size  | 32K| 32K| 32K|
OScpu#|   0|   1|   2|
Core  |  c0|  c1|  c2|
AffMsk|   1|   2|   4|
      +----+----+----+

Cache | L1I| L1I| L1I|
Size  | 32K| 32K| 32K|
      +----+----+----+

Cache |  L2|  L2|  L2|
Size  |256K|256K|256K|
      +----+----+----+

Cache |  L3|  L3|  L3|
Size  |  8M|  8M|  8M|
      +----+----+----+

Combined socket AffinityMask= 0x7

-- 
wbr,
pluknet


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