11-14-2005, 05:17 PM
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Web Hosting Guru
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Join Date: Aug 2004
Posts: 305
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Kernel 2.6.14.2, somebody using on CentOS 3.5??
I need to know how working this kernel version on CentOS 3.5 and I need to know how this kernel working on P4 WITH HT (Hyper-Threading) enabled...before some time I used kernel 2.6.13.4 and that kernel don`t see HT like server with TWO CPU`s...
Thanks.
sorry for my english.
Last edited by gurika; 11-14-2005 at 05:21 PM.
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11-14-2005, 05:36 PM
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-=Quits Here=-
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Join Date: Sep 2005
Location: In canada, Saskatoon
Posts: 3,200
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Quote:
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Originally Posted by gurika
I need to know how working this kernel version on CentOS 3.5 and I need to know how this kernel working on P4 WITH HT (Hyper-Threading) enabled...before some time I used kernel 2.6.13.4 and that kernel don`t see HT like server with TWO CPU`s...
Thanks.
sorry for my english.
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Centos (i think any version) doesnt show HT enabled , or 2 cpus as RH or other distros do , so i think ur ht is enabled but it will not show up in Centos. Even Dual Xeons with HT show only 2 processors instead of 4.
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11-14-2005, 05:50 PM
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Web Hosting Guru
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Join Date: Aug 2004
Posts: 305
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But I have few servers with CentOS 3.5 and with kernel 2.4 and on all look like I have 2 cpus because I have HT enabled, only on 2.6.13.4 I have this problem and I need to know is this better now in new version or not...
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11-14-2005, 06:11 PM
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-=Quits Here=-
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Join Date: Sep 2005
Location: In canada, Saskatoon
Posts: 3,200
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Quote:
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Originally Posted by gurika
But I have few servers with CentOS 3.5 and with kernel 2.4 and on all look like I have 2 cpus because I have HT enabled, only on 2.6.13.4 I have this problem and I need to know is this better now in new version or not...
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So i guess new centos doesnt have that feature or maybe ur server is not ht enabled?
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11-14-2005, 09:29 PM
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I like ice cream
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Join Date: Mar 2003
Location: California USA
Posts: 11,633
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2.6 kernel does not show ht correctly sometimes. This is most likely due to teh changes for the exploit that was found in ht
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11-14-2005, 11:58 PM
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Web Hosting Master
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Join Date: Mar 2002
Location: St. Louis, MO
Posts: 1,371
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I have it on CentOS it shows it, 2 CPUS with HT, 2.6.14 and 14.1 maybe I should try a .2
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11-15-2005, 12:11 AM
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I like ice cream
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Join Date: Mar 2003
Location: California USA
Posts: 11,633
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root@server1 [/usr/src/linux-2.6.14.2]# cat .config | grep -i smp
CONFIG_SMP=y
CONFIG_X86_FIND_SMP_CONFIG=y
CONFIG_X86_SMP=y
root@server1 [/usr/src/linux-2.6.14.2]# cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 15
model : 2
model name : Intel(R) Pentium(R) 4 CPU 3.00GHz
stepping : 9
cpu MHz : 2999.827
cache size : 512 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 1
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 mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe cid xtpr
bogomips : 6005.85
root@server1 [/usr/src/linux-2.6.14.2]#
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11-15-2005, 04:04 PM
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Web Hosting Master
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Join Date: Mar 2002
Location: St. Louis, MO
Posts: 1,371
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Heres mine
[/boot]# cat config-2.4.16 | grep -i smp
# CONFIG_X86_BIGSMP is not set
CONFIG_SMP=y
CONFIG_X86_FIND_SMP_CONFIG=y
CONFIG_X86_SMP=y
processor : 0
vendor_id : GenuineIntel
cpu family : 15
model : 2
model name : Intel(R) XEON(TM) CPU 2.20GHz
stepping : 4
cpu MHz : 2196.660
cache size : 512 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 1
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 : 4400.21
processor : 1
vendor_id : GenuineIntel
cpu family : 15
model : 2
model name : Intel(R) XEON(TM) CPU 2.20GHz
stepping : 4
cpu MHz : 2196.660
cache size : 512 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 1
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 : 4392.86
processor : 2
vendor_id : GenuineIntel
cpu family : 15
model : 2
model name : Intel(R) XEON(TM) CPU 2.20GHz
stepping : 4
cpu MHz : 2196.660
cache size : 512 KB
physical id : 3
siblings : 2
core id : 3
cpu cores : 1
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 : 4392.88
processor : 3
vendor_id : GenuineIntel
cpu family : 15
model : 2
model name : Intel(R) XEON(TM) CPU 2.20GHz
stepping : 4
cpu MHz : 2196.660
cache size : 512 KB
physical id : 3
siblings : 2
core id : 3
cpu cores : 1
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 : 4392.87
[/boot]# cat /etc/redhat-release
CentOS release 3.5 (Final)
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