[CentOS] SMP on a HP DL-320 G2
Jay Leafey
jay.leafey at mindless.com
Thu Mar 1 03:05:14 UTC 2007
fredex wrote:
> Hi gang!
>
> At work I have a DL320 G2 machine I use as my desktop (I know, weird!...).
>
> Back when I ran RHEL WS 2.1 on it, it always ran a SMP kernel because it
> has a HypterThread capable processor.
>
> When I installed (fresh from scratch) Centos 4.4 on it a while back, though,
> Centos installed only the UP kernel.
>
> I've looked in the BIOS for settings to enable/disable HT support and
> I don't see anything.
>
> I've force-installed the SMP kernel and when I boot it it doesn't seem
> to think there's anything thre but a normal UP CPU.
>
> Should it not show two CPUs in top, and in suitable places in /proc like
> the earlier OS did? (at least when running a SMP kernel)
>
> Ideas welcome.
>
> Thanks!
The DL-320 G2's I've got (6 at last count) running CentOS/RHEL 3 and 4 all show up in /proc/cpuinfo as single-core with no
hyperthreading. Here's the example output from one of them:
[root at directory1 root]# cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 15
model : 2
model name : Intel(R) Pentium(R) 4 CPU 2.66GHz
stepping : 9
cpu MHz : 2666.038
cache size : 512 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
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
bogomips : 5321.52
[root at directory1 root]#
I was a bit disappointed when we first got them because they weren't HT-capable, but they've worked very well for our purposes (DNS,
DHCP, LDAP, etc.).
--
Jay Leafey - Memphis, TN
jay.leafey at mindless.com
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