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Having trouble installing a piece of hardware? Want to know if that peripheral is compatible with Linux?

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Old 04-03-2009, 06:35 AM   #1
18Googol2
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16 cpus?


Hello, am I right to say this server has 16 cpus?

Some of the last line of output of:

% cat /proc/cpuinfo

Code:
....

processor       : 14
vendor_id       : GenuineIntel
cpu family      : 15
model           : 4
model name      : Intel(R) Xeon(TM) CPU 2.66GHz
stepping        : 8
cpu MHz         : 2670.107
cache size      : 1024 KB
physical id     : 13
siblings        : 4
core id         : 26
cpu cores       : 2
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 5
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 pbe lm pni monitor ds_cpl est cid xtpr
bogomips        : 5337.04

processor       : 15
vendor_id       : GenuineIntel
cpu family      : 15
model           : 4
model name      : Intel(R) Xeon(TM) CPU 2.66GHz
stepping        : 8
cpu MHz         : 2670.107
cache size      : 1024 KB
physical id     : 13
siblings        : 4
core id         : 26
cpu cores       : 2
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 5
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 pbe lm pni monitor ds_cpl est cid xtpr
bogomips        : 5337.06
 
Old 04-03-2009, 06:37 AM   #2
colucix
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Yes, since they are numbered starting from zero. Most likely this machine does not have 16 physical CPUs, but 16 cores. Does it mount 4 QUAD CORE CPUs?
 
Old 04-03-2009, 08:33 AM   #3
johnsfine
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I don't think so. I would need to see the whole output to have more confidence, but I think you have:

4 physical CPU packages
Each of which has 2 cores
Each of which is hyperthreaded to seem to be twice as many processors.
 
Old 04-03-2009, 12:33 PM   #4
Crito
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The OS thinks there are 16 central processing units. How many are virtual and how many are physical we don't know. The cpuinfo output could be from inside a VM for all you know and the host could be a Cray with 256 cores.
 
Old 04-03-2009, 01:54 PM   #5
farslayer
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Try lshw -C processor to get a realistic view of physical and logical CPU's..
 
Old 04-03-2009, 08:55 PM   #6
18Googol2
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Thanks. There is smt wrong with my company vpn server, I couldnt log in to my linux server to check. I will do it later.

Do you know which command to check the cpu model?

Also, if my server has hardware RAID setup, and I dont have manufacturer tool to check, is there any linux command to find out RAID info?

Thanks
 
Old 04-04-2009, 02:15 AM   #7
farslayer
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the lshw command I provided will show quite a bit of info about the CPU..
Code:
debianetch:~# lshw -C processor
  *-cpu                   
       description: CPU
       product: Intel(R) Pentium(R) 4 CPU 2.80GHz
       vendor: Intel Corp.
       physical id: 4
       bus info: cpu@0
       version: 15.3.3
       serial: 0000-0F33-0000-0000-0000-0000
       slot: J2E1
       size: 2800MHz
       capacity: 3060MHz
       width: 32 bits
       clock: 200MHz
       capabilities: boot fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe constant_tsc pebs bts pni monitor ds_cpl cid
       configuration: id=0
     *-logicalcpu:0
          description: Logical CPU
          physical id: 0.1
          width: 32 bits
          capabilities: logical
     *-logicalcpu:1
          description: Logical CPU
          physical id: 0.2
          width: 32 bits
          capabilities: logical
Is there something more that you want that isn't shown here ?

btw, you may have to install lshw, some distros do not install it by default, but all should have it in their repositories.
 
Old 04-04-2009, 04:11 AM   #8
18Googol2
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I think johnsfine is right. I have 4 physical dual core CPUs, and hyperthread is enabled

This is output from dmidecode command:

Code:
Handle 0x00AA
        DMI type 4, 32 bytes.
        Processor Information
                Socket Designation: Node 1 CPU 1
                Type: Central Processor
                Family: Xeon MP
                Manufacturer: GenuineIntel
                ID: 48 0F 00 00 00 00 00 00
                Signature: Type 0, Family F, Model 4, Stepping 8
                Flags: None
                Version: Intel Xeon MP  Dual-Core
                Voltage: 1.5 V
                External Clock: 133 MHz
                Max Speed: 4000 MHz
                Current Speed: 2672 MHz
                Status: Populated, Enabled
                Upgrade: ZIF Socket
                L1 Cache Handle: 0x004A
                L2 Cache Handle: 0x004B
                L3 Cache Handle: 0x004C
Handle 0x00AB
        DMI type 4, 32 bytes.
        Processor Information
                Socket Designation: Node 1 CPU 2
                Type: Central Processor
                Family: Xeon MP
                Manufacturer: GenuineIntel
                ID: 48 0F 00 00 00 00 00 00
                Signature: Type 0, Family F, Model 4, Stepping 8
                Flags: None
                Version: Intel Xeon MP  Dual-Core
                Voltage: 1.5 V
                External Clock: 133 MHz
                Max Speed: 4000 MHz
                Current Speed: 2672 MHz
                Status: Populated, Enabled
                Upgrade: ZIF Socket
                L1 Cache Handle: 0x004D
                L2 Cache Handle: 0x004E
                L3 Cache Handle: 0x004FHandle 0x00AC
        DMI type 4, 32 bytes.
        Processor Information
                Socket Designation: Node 1 CPU 3
                Type: Central Processor
                Family: Xeon MP
                Manufacturer: GenuineIntel
                ID: 48 0F 00 00 00 00 00 00
                Signature: Type 0, Family F, Model 4, Stepping 8
                Flags: None
                Version: Intel Xeon MP  Dual-Core
                Voltage: 1.5 V
                External Clock: 133 MHz
                Max Speed: 4000 MHz
                Current Speed: 2672 MHz
                Status: Populated, Enabled
                Upgrade: ZIF Socket
                L1 Cache Handle: 0x0050
                L2 Cache Handle: 0x0051
                L3 Cache Handle: 0x0052
Handle 0x00AD
        DMI type 4, 32 bytes.
        Processor Information
                Socket Designation: Node 1 CPU 4
                Type: Central Processor
                Family: Xeon MP
                Manufacturer: GenuineIntel
                ID: 48 0F 00 00 00 00 00 00
                Signature: Type 0, Family F, Model 4, Stepping 8
                Flags: None
                Version: Intel Xeon MP  Dual-Core
                Voltage: 1.5 V
                External Clock: 133 MHz
                Max Speed: 4000 MHz
                Current Speed: 2672 MHz
                Status: Populated, Enabled
                Upgrade: ZIF Socket
                L1 Cache Handle: 0x0053
                L2 Cache Handle: 0x0054
                L3 Cache Handle: 0x0055
Btw, I dont have lshw installed.
 
  


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