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!
--
---- Fred Smith -- fredex at fcshome.stoneham.ma.us
-----------------------------
But God demonstrates his own love for us in this:
While we were still sinners,
Christ died for us.
------------------------------- Romans 5:8 (niv) ------------------------------
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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 -------------- next part -------------- A non-text attachment was scrubbed... Name: smime.p7s Type: application/x-pkcs7-signature Size: 5177 bytes Desc: S/MIME Cryptographic Signature URL: <http://lists.centos.org/pipermail/centos/attachments/20070228/4b0157cd/attachment-0001.bin>
Jay Leafey wrote:> 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 : 5321.52odd. I have a dual xeon of about that generation that shows up as.. note this is family 15, model 2, stepping 7, while yours is stepping 15/2/9, which would be later. now, mine are running 2.4 (centos3 and centos2.1) processor : 0 vendor_id : GenuineIntel cpu family : 15 model : 2 model name : Intel(R) Xeon(TM) CPU 2.80GHz stepping : 7 cpu MHz : 2791.038 cache size : 512 KB physical id : 0 siblings : 2 runqueue : 0 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 : 5570.56 processor : 1 vendor_id : GenuineIntel cpu family : 15 model : 2 model name : Intel(R) Xeon(TM) CPU 2.80GHz stepping : 7 cpu MHz : 2791.038 cache size : 512 KB physical id : 0 siblings : 2 runqueue : 0 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 : 5570.56 processor : 2 vendor_id : GenuineIntel cpu family : 15 model : 2 model name : Intel(R) Xeon(TM) CPU 2.80GHz stepping : 7 cpu MHz : 2791.038 cache size : 512 KB physical id : 3 siblings : 2 runqueue : 2 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 : 5570.56 processor : 3 vendor_id : GenuineIntel cpu family : 15 model : 2 model name : Intel(R) Xeon(TM) CPU 2.80GHz stepping : 7 cpu MHz : 2791.038 cache size : 512 KB physical id : 3 siblings : 2 runqueue : 2 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 : 5570.56