About smp-kernel

HI folks,


Is smp-kernel enabled on CentOS4?

Which command shall I use to check it;

dmesg | grep "^ cpu"

OR

top -S


TIA


B.R.
satimis

 

Use

Code:

cat /proc/cpuinfo

You should see two processors in the output if you have an SMP kernel (and of course two CPUs ).

Also, you should see SMP mentioned somewhere in the output of

Code:

uname -a

 

Hi falko,

I'm running AMD Athlon64 X2 (dual core) AM2 cpu

# cat /proc/cupinfo

Code:

cat: /proc/cupinfo: No such file or directory

# uname -a

Code:

Linux host 2.6.16.29 #1 Sat Sep 30 14:08:18 BST 2006 x86_64 x86_64 x86_64 GNU/Linux

satimis

 

This is not an SMP kernel.
A SMP kernel has "SMP" within the kernel name.

I know how to replace it in a safe way on Debian like systems but not for Fedora. So i can't give you more advise about that point.

 

Have you build your own custom kernel and are you running that? The output does not look familiar for a standard distro....

 

Hi martinfst,

I haven't installed CentOS-4.4. I have its CD as well as arch64 Linux CD available. I expect to clarify nVidia driver issue as well as smp-kernel before deciding to go with which of them.

I ran that command on slamd64-11.0. I'm now installing fred's recompiled smp-kernel and encountering some problem. Sorry for making that confusion.


B.R.
satimis

 

It's

Code:

cat /proc/[B][COLOR="Red"]cpu[/COLOR][/B]info

not

Code:

cat /proc/[B][COLOR="Red"]cup[/COLOR][/B]info

 

hi falko,

sorry, I made a mistake.

$ cat /proc/cpuinfo

Code:

processor       : 0
vendor_id       : AuthenticAMD
cpu family      : 15
model           : 75
model name      : AMD Athlon(tm) 64 X2 Dual Core Processor 3800+
stepping        : 2
cpu MHz         : 2009.472
cache size      : 512 KB
fpu             : yes
fpu_exception   : yes
cpuid level     : 1
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt lm 3dnowext 3dnow pni cx16 lahf_lm cmp_legacy svm cr8_legacy
bogomips        : 4022.75
TLB size        : 1024 4K pages
clflush size    : 64
cache_alignment : 64
address sizes   : 40 bits physical, 48 bits virtual
power management: ts fid vid ttp tm stc

B.r.
satimis

 

You don't have an SMP kernel installed.

 

Dose SMP kernel works on single core CPU? Tks


Edit:
Would it be an advantage if building all items on the kernel as module instead of "enabled"?

B.R.
satimis

 

Yes.

You'd then need a ramdisk if your file system drivers are modules.