Questions regarding multi-core use - Intel Core 2 Quad CPU - Q6600

[tkambler]

I have a virtual server running on my HyperVisor box. I would like to give it access to all four cores of my CPU. The CPU is:

Intel Core 2 Quad - #Q6600

I am runningUbuntu on this particular server... I did the following:

cat /proc/cpuinfo

I was expect to see 4 separate cores listed, but this is all I see:

=======

processor : 0

vendor_id : GenuineIntel

cpu family : 6

model : 15

model name : Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz

stepping : 11

cpu MHz : 2405.970

cache size : 4096 KB

fdiv_bug : no

hlt_bug : no

f00f_bug : no

coma_bug : no

fpu : yes

fpu_exception : yes

cpuid level : 10

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 nx lm constant_tsc up arch_perfmon pebs bts pni ssse3 cx16 lahf_lm

bogomips : 4819.96

clflush size : 64

=======

Even though it only lists out one entry, is this set up properly? If not, what should I do? Thank you for your help.

[DSTAVERT]

Install an SMP kernel on the Ubuntu guest. There is very little benefit to adding multiple vCPUs to a guest. Especially adding all the available cores since the ESXi host also needs resources as will any other Virtual machines.

[weinstein5]

Welcome to the Forums- In addition to insuring you have a SMP kernel in the O/S you will need to make sure that Virtual Machine is configured with multipl vCPUs -

If you find this or any other answer useful please consider awarding points by marking the answer correct or helpful

[tkambler]

I am currently looking into SMP. Would you be so kind as to give me a few details, so I can be sure I am doing the correct thing to ensure multi-core support is enabled? Thank you very much!

[DSTAVERT · Accepted solution]

Have you already enabled multiple vCPUs in the guest settings? What version of Ubuntu? GUI or command line?

[tkambler]

You were both very helpful. As it turned out, I simply needed to update the default setting of 1 virtual CPU to 4. I could have sworn I looked for this earlier, but was unable to find it.

I am running Ubuntu Server 8.0.4.3 LTS. As it turns out, it has SMP enabled already (default).

I am noticing a HUGE difference in performance. Thanks again.