Fedora Core - Dual Processor ???

If it's a dual-CPU motherboard then it should be supported just fine.  To see if you're already booted with SMP, type:

uname -a

and look for "-smp".  

If you find it then you're running on an SMP kernel.  If not, it may be that it's installed but not booted.  You can verify that by using "rpm -qa kernel-smp"  Select the SMP kernel in your grub menu.

BK

During the booting process usually you can see a pinguin icon on the top of the display. If your OS uses more than one processor the number of pinguins will show you how many are being used. If the processors are Hyperthreading (HT) processors, you will also have 2 pinguins per processor, so if both Processors are HT processors you'll see 4 Pinguins.

I will run the "uname -a" when I get home, I know when I get the boot menu I have a kernel ending with smp. That is the default boot option.
If I recall correctly in "top" the cpu usage field looks like "cpu(s) %(of usage)".
Is there a better or more functional processor/performance monitor than top?
Thanks
J

Better in what way?  You do have other tools available, depending upon what you want to see:

vmstat, iostat & sar are three that immediately come to mind.  The former is in the procps package and the latter two are in the sysstat package, in case you don't have those loaded.

Better reporting of what is using what ammount of memmory. One thing I noticed is that, it "top" inparticular once the system uses "x" amount of memmory the used memmory never is reduced. The CPU can be limping along at 0.3% and have 512mb used memmory with virutally no services running in runlevel 3.
Thanks
J

>once the system uses "x" amount of memmory the used memmory never is reduced.
kernel manange those memory so it can allocate to other application when it needs. It is not show up doesn't mean it is not
available.

this is what I got when I entered cat /proc/cpuinfo
so I guess both are known to the system.
Is there a way to test to see if both are processing info?

processor       : 0
vendor_id       : GenuineIntel
cpu family      : 15
model           : 1
model name      : Intel(R) Xeon(TM) CPU 1.50GHz
stepping        : 2
cpu MHz         : 1500.423
cache size      : 256 KB
physical id     : 0
siblings        : 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
bogomips        : 2949.12

processor       : 1
vendor_id       : GenuineIntel
cpu family      : 15
model           : 1
model name      : Intel(R) Xeon(TM) CPU 1.50GHz
stepping        : 2
cpu MHz         : 1500.423
cache size      : 256 KB
physical id     : 0
siblings        : 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
bogomips        : 2990.08