PowerEdge T610 - Sees Only 16 'CPUs'

Question


Gentlemen,


            My client has three stations "PowerEdge T610" with 2 processors E5630 (in bios) (Windows E5649). My XenServer (Bare Metal Hypervisor) sees only 16 "CPUs". These 2 processors have 4 cores each and 8 threads for each core.

            The problem is that XenServer sees only 16 "CPUs" when he should see 2x4x8 (CPUsxCoresxThreads) 64 "CPUs". Namely, 32 "CPUs" for each processor.

            I've Recently upgraded this bios. What could be wrong? This is a limitation of Linux? What can I do for this my client?


Thanks!

DELL-Chris H · Accepted Answer

Sorry I misread the first post. With the E5630 you have 4 cores with 8 threads per processor, not per core. So you will have 16 "CPU's" in the OS. As it is seeing the 8 threads per processor.

Each core has its thread and the hyperthread, so each 4 core processor has 4 pairs equaling 8.

Sorry about that.

eduardolucioac · Answer

Dear Chris, Q.: 'If you boot to the BIOS (F2) and then select Processor Settings. Is Logical Processor enabled?' A.: Yes. Is enabled. Q.: 'Also, below that what does it show for # of cores below each processor?' A.: 'Number of Cores per Processor' -> All Thanks!

DELL-Chris H · Answer

Eduardolucioac, If you boot to the BIOS (F2) and then select Processor Settings. Is Logical Processor enabled? Also , below that what does it show for # of cores below each processor?

eduardolucioac · Answer

Thanks a lot!

PowerEdge Hardware General

PowerEdge T610 - Sees Only 16 "CPUs"

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