Куда делся второй процессор?

0

1

Добрый день, есть такая странность. Сервер с одним процессором:

lshw -class cpu
  *-cpu                   
       description: CPU
       product: Intel(R) Xeon(R) CPU E3-1230 V2 @ 3.30GHz
       vendor: Intel Corp.
       physical id: 4
       bus info: cpu@0
       version: Intel(R) Xeon(R) CPU E3-1230 V2 @ 3.30GH
       serial: To Be Filled By O.E.M.
       slot: CPU 1
       size: 3301MHz
       capacity: 4GHz
       width: 64 bits
       clock: 100MHz
       capabilities: x86-64 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 syscall nx rdtscp constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm ida arat xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid fsgsbase smep erms cpufreq
       configuration: cores=4 enabledcores=4 threads=8

Показывает 8 ядер.

А другой сервер, с двумя процессорами:

lshw -class cpu
  *-cpu:0                 
       description: CPU
       product: Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz
       vendor: Intel Corp.
       physical id: 4
       bus info: cpu@0
       version: Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz
       slot: CPU 1
       size: 1200MHz
       capacity: 2400MHz
       width: 64 bits
       clock: 100MHz
       capabilities: x86-64 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 syscall nx pdpe1gb rdtscp constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx lahf_lm arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid cpufreq
       configuration: cores=4 enabledcores=4 threads=4
  *-cpu:1
       description: CPU
       product: Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz
       vendor: Intel Corp.
       physical id: 6
       bus info: cpu@1
       version: Intel(R) Xeon(R) CPU E5-2609 0 @ 2.40GHz
       slot: CPU 2
       size: 1200MHz
       capacity: 2400MHz
       width: 64 bits
       clock: 100MHz
       capabilities: x86-64 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 syscall nx pdpe1gb rdtscp constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx lahf_lm arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid cpufreq
       configuration: cores=4 enabledcores=4 threads=4

Тоже 8 ядер, что за? И что такое threads?..