Hi,
thanks for your answers.
strawks wrote:
Hello,
sorry, I forgot to tell that `/proc/cpuinfo'
shows up _two_ processors (when the kernel is a SMP one).
Furthermore,
the concerned black box is a very old one:
before september 2003 (kernel 2.4.22).
According to `/proc/cpuinfo', there are two
Intel(R) Pentium(R) 4 CPU 3.20GHz (model name)
with `stepping' 9.
Maybe it's not present in the 2.4 kernels, but there is now a physical
id line in /proc/cpuinfo. If your 2 processors have the same physical
id, it's a dual core or a P4 HT (Hyperthreading).
I think it's probably a P4 HT. To be sure check the presence of the flag
"ht".
As I may need a lot of CPU time, I would like to know
if it makes sense to install a SMP kernel on this black
box (and its shelf brothers):
who must I try ?
If this is a P4 HT, take a look at this page :
http://www.ibm.com/developerworks/linux/library/l-htl/
Indeed I have a P4 HT :
must I build a SMP kernel as suggested by Knoppix ?
If it's a dual core yes you should install a SMP kernel to take
advantage of the 2 cores.
Can a SMP kernel be confused by a one CPU computer
(and announce two CPU instead of one).
I don't think the kernel could show 2 CPUs if there is only one, as each
CPU are initialized one after another.
Thanks in advance,
Jerome
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Jerome BENOIT
jgmbenoit_at_mailsnare_dot_net
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