/ proc / cpuinfo에서 물리적 코어를 공유하는 HT 코어 찾기

"Xeon (R) CPU X5550 @ 2.67GHz"CPU가 2 개인 컴퓨터가 있습니다. 하이퍼 스레딩이 활성화되어 있으므로 16 코어 시스템처럼 보이지만 실제로는 8 개의 물리 코어 만 있습니다.

하이퍼 스레딩이 활성화되면 각 물리적 코어가 두 개의 가상 코어로 분할됩니다. 어떤 가상 코어 쌍이 실제 코어를 공유하고 어떤 것이 아닌지 알고 싶습니다. 또는 Linux가 실제 코어와 비교하여 HT 코어를 어떻게 (순서대로) 열거합니까? ( sched_setaffinity와 taskset마스크에 대해 열거됩니다 ).

/proc/cpuinfo시스템에서 파일 덤프가 있습니다.

나는 가능하다고 생각합니다.

• CPU0-CPU7이 phy를 공유하지 않습니다. 핵심. CPU8-CPU15도. 그러나 공유는 CPU0 + CPU8, CPU (i) + CPU (i + 8) 등의 쌍으로 이루어집니다.
• 또는 CPU0 + CPU1은 단일 물리적 CPU2 + CPU3, CPU (2 * i) + CPU (2 * i + 1)입니다.
• 또는 이국적인 CPU0 + CPU15 공유, CPU1 + CPU14 ...
• 또는 무작위?

이 경우 어려운 순간은 2 개의 물리적 CPU 다이 (2 개의 소켓)가 있으며 "physical id :"필드 사용에 대한 일반적인 권장 사항이 도움이되지 않는다는 것입니다

cpuinfo :

processor   : 0
vendor_id   : GenuineIntel
cpu family  : 6
model       : 26
model name  : Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping    : 5
cpu MHz     : 2660.076
cache size  : 8192 KB
physical id : 1
siblings    : 8
core id     : 0
cpu cores   : 4
apicid      : 16
fpu     : yes
fpu_exception   : yes
cpuid level : 11
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 ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr sse4_1 sse4_2 popcnt lahf_lm
bogomips    : 5320.15
clflush size    : 64
cache_alignment : 64
address sizes   : 40 bits physical, 48 bits virtual
power management: [8]

processor   : 1
vendor_id   : GenuineIntel
cpu family  : 6
model       : 26
model name  : Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping    : 5
cpu MHz     : 2660.076
cache size  : 8192 KB
physical id : 0
siblings    : 8
core id     : 0
cpu cores   : 4
apicid      : 0
fpu     : yes
fpu_exception   : yes
cpuid level : 11
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 ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr sse4_1 sse4_2 popcnt lahf_lm
bogomips    : 5319.96
clflush size    : 64
cache_alignment : 64
address sizes   : 40 bits physical, 48 bits virtual
power management: [8]

processor   : 2
vendor_id   : GenuineIntel
cpu family  : 6
model       : 26
model name  : Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping    : 5
cpu MHz     : 2660.076
cache size  : 8192 KB
physical id : 1
siblings    : 8
core id     : 1
cpu cores   : 4
apicid      : 18
fpu     : yes
fpu_exception   : yes
cpuid level : 11
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 ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr sse4_1 sse4_2 popcnt lahf_lm
bogomips    : 5320.04
clflush size    : 64
cache_alignment : 64
address sizes   : 40 bits physical, 48 bits virtual
power management: [8]

processor   : 3
vendor_id   : GenuineIntel
cpu family  : 6
model       : 26
model name  : Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping    : 5
cpu MHz     : 2660.076
cache size  : 8192 KB
physical id : 0
siblings    : 8
core id     : 1
cpu cores   : 4
apicid      : 2
fpu     : yes
fpu_exception   : yes
cpuid level : 11
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 ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr sse4_1 sse4_2 popcnt lahf_lm
bogomips    : 5320.05
clflush size    : 64
cache_alignment : 64
address sizes   : 40 bits physical, 48 bits virtual
power management: [8]

processor   : 4
vendor_id   : GenuineIntel
cpu family  : 6
model       : 26
model name  : Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping    : 5
cpu MHz     : 2660.076
cache size  : 8192 KB
physical id : 1
siblings    : 8
core id     : 2
cpu cores   : 4
apicid      : 20
fpu     : yes
fpu_exception   : yes
cpuid level : 11
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 ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr sse4_1 sse4_2 popcnt lahf_lm
bogomips    : 5320.04
clflush size    : 64
cache_alignment : 64
address sizes   : 40 bits physical, 48 bits virtual
power management: [8]

processor   : 5
vendor_id   : GenuineIntel
cpu family  : 6
model       : 26
model name  : Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping    : 5
cpu MHz     : 2660.076
cache size  : 8192 KB
physical id : 0
siblings    : 8
core id     : 2
cpu cores   : 4
apicid      : 4
fpu     : yes
fpu_exception   : yes
cpuid level : 11
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 ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr sse4_1 sse4_2 popcnt lahf_lm
bogomips    : 5320.05
clflush size    : 64
cache_alignment : 64
address sizes   : 40 bits physical, 48 bits virtual
power management: [8]

processor   : 6
vendor_id   : GenuineIntel
cpu family  : 6
model       : 26
model name  : Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping    : 5
cpu MHz     : 2660.076
cache size  : 8192 KB
physical id : 1
siblings    : 8
core id     : 3
cpu cores   : 4
apicid      : 22
fpu     : yes
fpu_exception   : yes
cpuid level : 11
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 ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr sse4_1 sse4_2 popcnt lahf_lm
bogomips    : 5320.03
clflush size    : 64
cache_alignment : 64
address sizes   : 40 bits physical, 48 bits virtual
power management: [8]

processor   : 7
vendor_id   : GenuineIntel
cpu family  : 6
model       : 26
model name  : Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping    : 5
cpu MHz     : 2660.076
cache size  : 8192 KB
physical id : 0
siblings    : 8
core id     : 3
cpu cores   : 4
apicid      : 6
fpu     : yes
fpu_exception   : yes
cpuid level : 11
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 ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr sse4_1 sse4_2 popcnt lahf_lm
bogomips    : 5320.07
clflush size    : 64
cache_alignment : 64
address sizes   : 40 bits physical, 48 bits virtual
power management: [8]

processor   : 8
vendor_id   : GenuineIntel
cpu family  : 6
model       : 26
model name  : Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping    : 5
cpu MHz     : 2660.076
cache size  : 8192 KB
physical id : 1
siblings    : 8
core id     : 0
cpu cores   : 4
apicid      : 17
fpu     : yes
fpu_exception   : yes
cpuid level : 11
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 ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr sse4_1 sse4_2 popcnt lahf_lm
bogomips    : 5320.01
clflush size    : 64
cache_alignment : 64
address sizes   : 40 bits physical, 48 bits virtual
power management: [8]

processor   : 9
vendor_id   : GenuineIntel
cpu family  : 6
model       : 26
model name  : Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping    : 5
cpu MHz     : 2660.076
cache size  : 8192 KB
physical id : 0
siblings    : 8
core id     : 0
cpu cores   : 4
apicid      : 1
fpu     : yes
fpu_exception   : yes
cpuid level : 11
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 ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr sse4_1 sse4_2 popcnt lahf_lm
bogomips    : 5320.07
clflush size    : 64
cache_alignment : 64
address sizes   : 40 bits physical, 48 bits virtual
power management: [8]

processor   : 10
vendor_id   : GenuineIntel
cpu family  : 6
model       : 26
model name  : Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping    : 5
cpu MHz     : 2660.076
cache size  : 8192 KB
physical id : 1
siblings    : 8
core id     : 1
cpu cores   : 4
apicid      : 19
fpu     : yes
fpu_exception   : yes
cpuid level : 11
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 ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr sse4_1 sse4_2 popcnt lahf_lm
bogomips    : 5320.04
clflush size    : 64
cache_alignment : 64
address sizes   : 40 bits physical, 48 bits virtual
power management: [8]

processor   : 11
vendor_id   : GenuineIntel
cpu family  : 6
model       : 26
model name  : Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping    : 5
cpu MHz     : 2660.076
cache size  : 8192 KB
physical id : 0
siblings    : 8
core id     : 1
cpu cores   : 4
apicid      : 3
fpu     : yes
fpu_exception   : yes
cpuid level : 11
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 ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr sse4_1 sse4_2 popcnt lahf_lm
bogomips    : 5320.00
clflush size    : 64
cache_alignment : 64
address sizes   : 40 bits physical, 48 bits virtual
power management: [8]

processor   : 12
vendor_id   : GenuineIntel
cpu family  : 6
model       : 26
model name  : Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping    : 5
cpu MHz     : 2660.076
cache size  : 8192 KB
physical id : 1
siblings    : 8
core id     : 2
cpu cores   : 4
apicid      : 21
fpu     : yes
fpu_exception   : yes
cpuid level : 11
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 ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr sse4_1 sse4_2 popcnt lahf_lm
bogomips    : 5320.03
clflush size    : 64
cache_alignment : 64
address sizes   : 40 bits physical, 48 bits virtual
power management: [8]

processor   : 13
vendor_id   : GenuineIntel
cpu family  : 6
model       : 26
model name  : Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping    : 5
cpu MHz     : 2660.076
cache size  : 8192 KB
physical id : 0
siblings    : 8
core id     : 2
cpu cores   : 4
apicid      : 5
fpu     : yes
fpu_exception   : yes
cpuid level : 11
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 ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr sse4_1 sse4_2 popcnt lahf_lm
bogomips    : 5320.05
clflush size    : 64
cache_alignment : 64
address sizes   : 40 bits physical, 48 bits virtual
power management: [8]

processor   : 14
vendor_id   : GenuineIntel
cpu family  : 6
model       : 26
model name  : Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping    : 5
cpu MHz     : 2660.076
cache size  : 8192 KB
physical id : 1
siblings    : 8
core id     : 3
cpu cores   : 4
apicid      : 23
fpu     : yes
fpu_exception   : yes
cpuid level : 11
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 ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr sse4_1 sse4_2 popcnt lahf_lm
bogomips    : 5320.02
clflush size    : 64
cache_alignment : 64
address sizes   : 40 bits physical, 48 bits virtual
power management: [8]

processor   : 15
vendor_id   : GenuineIntel
cpu family  : 6
model       : 26
model name  : Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping    : 5
cpu MHz     : 2660.076
cache size  : 8192 KB
physical id : 0
siblings    : 8
core id     : 3
cpu cores   : 4
apicid      : 7
fpu     : yes
fpu_exception   : yes
cpuid level : 11
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 ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr sse4_1 sse4_2 popcnt lahf_lm
bogomips    : 5320.04
clflush size    : 64
cache_alignment : 64
address sizes   : 40 bits physical, 48 bits virtual
power management: [8]

동일한 물리적 코어를 공유하는 프로세서는 서로 다른 프로세서 번호로 동일한 코어 ID와 물리적 ID를 가져야합니다. 이 시도:

cat /proc/cpuinfo |egrep "processor|physical id|core id" | sed 's/^processor/\nprocessor/g'

이 문제는 hwloc (Portable Hardware Locality)에 의해 이미 해결되었습니다 .

이 유틸리티는 물리적 패키지, 캐시, 물리적 코어 공유 측면에서 시스템이 구성되는 방식을 보여줍니다. HT와 Linux도 지원합니다.

나는 / proc / cpuinfo를 다음과 같이 파싱한다.

paste <(cat /proc/cpuinfo | grep "core id") <(cat /proc/cpuinfo | grep "processor") | sed 's/[[:blank:]]/ /g' 내 컴퓨터의 출력은 다음과 같습니다. core id : 0 processor : 0 core id : 1 processor : 1 core id : 2 processor : 2 core id : 3 processor : 3 core id : 0 processor : 4 core id : 1 processor : 5 core id : 2 processor : 6 core id : 3 processor : 7 이것은 각각 2 개의 스레드가있는 4 개의 코어를 보여줍니다.