FreeBSD 9.1 vs CentOS 6.3

[Jia-Shiun Li]

On Fri, Mar 22, 2013 at 5:03 PM, Davide D'Amico
<davide.damico at contactlab.com> wrote:
> Hi, I'm doing performance tests on a DELL R720, follows dmesg:
>
> Copyright (c) 1992-2012 The FreeBSD Project.
> Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
>         The Regents of the University of California. All rights reserved.
> FreeBSD is a registered trademark of The FreeBSD Foundation.
> FreeBSD 9.1-RELEASE #0: Tue Mar 19 10:24:21 CET 2013
>     root:/usr/obj/usr/src/sys/R720 amd64
> CPU: Intel(R) Xeon(R) CPU E5-2640 0 @ 2.50GHz (2500.05-MHz K8-class CPU)
>   Origin = "GenuineIntel"  Id = 0x206d7  Family = 6  Model = 2d Stepping = 7
> Features=0xbfebfbff<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,HTT,TM,PBE>
> Features2=0x1fbee3ff<SSE3,PCLMULQDQ,DTES64,MON,DS_CPL,VMX,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,DCA,SSE4.1,SSE4.2,x2APIC,POPCNT,TSCDLT,AESNI,XSAVE,OSXSAVE,AVX>
>   AMD Features=0x2c100800<SYSCALL,NX,Page1GB,RDTSCP,LM>
>   AMD Features2=0x1<LAHF>
>   TSC: P-state invariant, performance statistics
> real memory  = 34359738368 (32768 MB)
> avail memory = 33027436544 (31497 MB)
> Event timer "LAPIC" quality 600
> ACPI APIC Table: <DELL   PE_SC3  >
> FreeBSD/SMP: Multiprocessor System Detected: 8 CPUs
> FreeBSD/SMP: 2 package(s) x 2 core(s) x 2 SMT threads
>  cpu0 (BSP): APIC ID:  0
>  cpu1 (AP): APIC ID:  1
>  cpu2 (AP): APIC ID: 10
>  cpu3 (AP): APIC ID: 11
>  cpu4 (AP): APIC ID: 32
>  cpu5 (AP): APIC ID: 33
>  cpu6 (AP): APIC ID: 42
>  cpu7 (AP): APIC ID: 43


According to CPU model you appear to have a system w/ 2 CPU packages x
6-core x 2-thread, which should be 12C/24T total. But it appears 9.1R
only recognized 4C/8T. It does not look like a VM. Could you confirm?
If it is really so 9.1R and your BIOS may have problem playing well
together.

-Jia-Shiun.