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/ 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. -- regards, strawks -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
