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confusing machinfo output on HP UX 11.23

prvnrk
Occasional Contributor

confusing machinfo output on HP UX 11.23

Hi,

 

The output on HP UX 11.31 is straight forward but on 11.23 is its very confusing.

 

On one of HP UX 11.23 servers, "machinfo" displays below info. Could any guru confirm that

 

1. No. of CPU sockets = 4

2. No. of cores = 8 

3. cache per CPU = 24MB

 

Pls confirm.  

 

# machinfo

CPU info:
Number of CPUs = 8
Clock speed = 1598 MHz
Bus speed = 533 MT/s
CPUID registers
vendor information = "GenuineIntel"
processor serial number = 0x0000000000000000
processor version info = 0x0000000020000704
architecture revision: 0
processor family: 32 Intel(R) Itanium 2 9000 series
processor model: 0 Intel(R) Itanium 2 9000 series
processor revision: 7 Stepping C2
largest CPUID reg: 4
processor capabilities = 0x0000000000000005
implements long branch: 1
implements 16-byte atomic operations: 1
Bus features
implemented = 0xbdf0000020000000
selected = 0x0020000000000000
Exclusive Bus Cache Line Replacement Enabled

Cache info (per core):
L1 Instruction: size = 16 KB, associativity = 4
L1 Data: size = 16 KB, associativity = 4
L2 Instruction: size = 1024 KB, associativity = 8
L2 Data: size = 256 KB, associativity = 8
L3 Unified: size = 12288 KB, associativity = 12

 

 

1 REPLY
Dennis Handly
Acclaimed Contributor

Re: confusing machinfo output on HP-UX 11.23

What's confusing?

 

You have 8 cores == CPUs.  Your L3 cache per core is ~ 12 MB.

The specs say  Intel(R) Itanium 2 9000 series is dual core, so you have 4 sockets.