¿ìºÐÅõ 20.04 Xeon(R) Gold 6146 core id ¹®ÀÇ

   Á¶È¸ 2687   Ãßõ 0    

 처음으로 Intel XEON 을 사용하게 되었습니다.

Intel(R) Xeon(R) Gold 6146 CPU @ 3.20GHz  12-core 짜리

두개 사용합니다.


$sensors 수행하면 아래 처럼 cpu id 가 좀 이상하게 나오는 데 왜 그런 걸 까요?

$watch sensors 나 

$sensors 수행하면 core id 에 이빨이 빠지거나 중복되는 것이 보입니다.

coretemp-isa-0000 => Core  0,3,4,8,9,10,11,16,17,18,24,26   (12개)

coretemp-isa-0001=>  Core 0,1,2,3,4,8,10,11,18,24,25,27      (12개)

중복 Core 0,3,8,10,11,18,24

누락 Core 5,6,7,12,13,14,15


coretemp-isa-0000

Adapter: ISA adapter

Package id 0:  +46.0°C  (high = +88.0°C, crit = +98.0°C)

Core 0:        +46.0°C  (high = +88.0°C, crit = +98.0°C)

Core 3:        +43.0°C  (high = +88.0°C, crit = +98.0°C)

Core 4:        +43.0°C  (high = +88.0°C, crit = +98.0°C)

Core 8:        +44.0°C  (high = +88.0°C, crit = +98.0°C)

Core 9:        +42.0°C  (high = +88.0°C, crit = +98.0°C)

Core 10:       +42.0°C  (high = +88.0°C, crit = +98.0°C)

Core 11:       +45.0°C  (high = +88.0°C, crit = +98.0°C)

Core 16:       +44.0°C  (high = +88.0°C, crit = +98.0°C)

Core 17:       +43.0°C  (high = +88.0°C, crit = +98.0°C)

Core 18:       +43.0°C  (high = +88.0°C, crit = +98.0°C)

Core 24:       +44.0°C  (high = +88.0°C, crit = +98.0°C)

Core 26:       +44.0°C  (high = +88.0°C, crit = +98.0°C)


pch_lewisburg-virtual-0

Adapter: Virtual device

temp1:        +41.0°C


nvme-pci-0200

Adapter: PCI adapter

Composite:    +30.9°C  (low  = -20.1°C, high = +77.8°C)

                       (crit = +81.8°C)

Sensor 1:     +30.9°C  (low  = -273.1°C, high = +65261.8°C)


coretemp-isa-0001

Adapter: ISA adapter

Package id 1:  +47.0°C  (high = +88.0°C, crit = +98.0°C)

Core 0:        +46.0°C  (high = +88.0°C, crit = +98.0°C)

Core 1:        +45.0°C  (high = +88.0°C, crit = +98.0°C)

Core 2:        +45.0°C  (high = +88.0°C, crit = +98.0°C)

Core 3:        +45.0°C  (high = +88.0°C, crit = +98.0°C)

Core 4:        +46.0°C  (high = +88.0°C, crit = +98.0°C)

Core 8:        +45.0°C  (high = +88.0°C, crit = +98.0°C)

Core 10:       +45.0°C  (high = +88.0°C, crit = +98.0°C)

Core 11:       +45.0°C  (high = +88.0°C, crit = +98.0°C)

Core 18:       +45.0°C  (high = +88.0°C, crit = +98.0°C)

Core 24:       +45.0°C  (high = +88.0°C, crit = +98.0°C)

Core 25:       +45.0°C  (high = +88.0°C, crit = +98.0°C)

Core 27:       +46.0°C  (high = +88.0°C, crit = +98.0°C)


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/proc/cpuinfo ¸¦ º¸¸é ¾Æ·¡¿Í °°½À´Ï´Ù,.

$ cat /proc/cpuinfo | grep core | grep id
core id : 0
core id : 3
core id : 4
core id : 8
core id : 9
core id : 10
core id : 11
core id : 16
core id : 17
core id : 18
core id : 24
core id : 26
core id : 0
core id : 1
core id : 2
core id : 3
core id : 4
core id : 8
core id : 10
core id : 11
core id : 18
core id : 24
core id : 25
core id : 27
core id : 0
core id : 3
core id : 4
core id : 8
core id : 9
core id : 10
core id : 11
core id : 16
core id : 17
core id : 18
core id : 24
core id : 26
core id : 0
core id : 1
core id : 2
core id : 3
core id : 4
core id : 8
core id : 10
core id : 11
core id : 18
core id : 24
core id : 25
core id : 27
NUMA node0 CPU(s):              0-11,24-35
NUMA node1 CPU(s):              12-23,36-47

¾Æ·¡ ³»¿ë Áß »ó±â Á¤º¸ÀÇ ±ÔÄ¢ÀÌ ±Ã±ÞÇÕ´Ï´Ù.

~$ lscpu
Architecture:                    x86_64
CPU op-mode(s):                  32-bit, 64-bit
Byte Order:                      Little Endian
Address sizes:                  46 bits physical, 48 bits virtual
CPU(s):                          48
On-line CPU(s) list:            0-47
Thread(s) per core:              2
Core(s) per socket:              12
Socket(s):                      2
NUMA node(s):                    2
Vendor ID:                      GenuineIntel
CPU family:                      6
Model:                          85
Model name:                      Intel(R) Xeon(R) Gold 6146 CPU @ 3.20GHz
Stepping:                        4
CPU MHz:                        3200.000
CPU max MHz:                    4200.0000
CPU min MHz:                    1200.0000
BogoMIPS:                        6400.00
Virtualization:                  VT-x
L1d cache:                      768 KiB
L1i cache:                      768 KiB
L2 cache:                        24 MiB
L3 cache:                        49.5 MiB
NUMA node0 CPU(s):              0-11,24-35
NUMA node1 CPU(s):              12-23,36-47
Vulnerability Itlb multihit:    KVM: Mitigation: VMX disabled
Vulnerability L1tf:              Mitigation; PTE Inversion; VMX conditional cache flushes, SMT vulnerable
Vulnerability Mds:              Mitigation; Clear CPU buffers; SMT vulnerable
Vulnerability Meltdown:          Mitigation; PTI
Vulnerability Mmio stale data:  Mitigation; Clear CPU buffers; SMT vulnerable
Vulnerability Spec store bypass: Mitigation; Speculative Store Bypass disabled via prctl and seccomp
Vulnerability Spectre v1:        Mitigation; usercopy/swapgs barriers and __user pointer sanitization
Vulnerability Spectre v2:        Mitigation; Retpolines, IBPB conditional, IBRS_FW, STIBP conditional, RSB filling
Vulnerability Srbds:            Not affected
Vulnerability Tsx async abort:  Mitigation; Clear CPU buffers; SMT vulnerable
Flags:                          fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr ss
                                e sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc art arch_perfmon pebs bts rep_good nop
                                l xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 s
                                dbg fma cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f
                                16c rdrand lahf_lm abm 3dnowprefetch cpuid_fault epb cat_l3 cdp_l3 invpcid_single pti intel_ppin ssb
                                d mba ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid ept_ad fsgsbase tsc_adjust bmi1 hle avx2
                                  smep bmi2 erms invpcid rtm cqm mpx rdt_a avx512f avx512dq rdseed adx smap clflushopt clwb intel_pt
                                avx512cd avx512bw avx512vl xsaveopt xsavec xgetbv1 xsaves cqm_llc cqm_occup_llc cqm_mbm_total cqm_mb
                                m_local dtherm ida arat pln pts hwp hwp_act_window hwp_epp hwp_pkg_req pku ospke md_clear flush_l1d
                                arch_capabilities
¹Ú¹®Çü 2022-10
»ç¿ëÇϽô º¸µå ¸ðµ¨¸íÀÌ ¹«¾ùÀÎÁö¿ä??

¹ÙÀÌ¿À½º´Â ÃÖ½ÅÀΰ¡¿ä??
     
·¹³ë¹ö P920 ÀÌ°í ¾Æ·¡Ã³·³ ³ª¿À³×¿ä.
$ sudo dmidecode -s baseboard-manufacturer
LENOVO
$ sudo dmidecode -s baseboard-product-name
1038

¹ÙÀÌ¿À½ºµµ  ¿Ã 7¿ù ¹öÁ¯ÀÔ´Ï´Ù.
# dmidecode 3.2
Getting SMBIOS data from sysfs.
SMBIOS 3.2.1 present.
# SMBIOS implementations newer than version 3.2.0 are not
# fully supported by this version of dmidecode.
Table at 0x6B99D000.

Handle 0x0000, DMI type 0, 26 bytes
BIOS Information
        Vendor: LENOVO
        Version: S05KT62A
        Release Date: 07/27/2022
        Address: 0xF0000
        Runtime Size: 64 kB
        ROM Size: 16 MB
        Characteristics:
                PCI is supported
                BIOS is upgradeable
                BIOS shadowing is allowed
                Boot from CD is supported
                Selectable boot is supported
                BIOS ROM is socketed
                EDD is supported
                5.25"/1.2 MB floppy services are supported (int 13h)
                3.5"/720 kB floppy services are supported (int 13h)
                3.5"/2.88 MB floppy services are supported (int 13h)
                Print screen service is supported (int 5h)
                8042 keyboard services are supported (int 9h)
                Serial services are supported (int 14h)
                Printer services are supported (int 17h)
                ACPI is supported
                USB legacy is supported
                BIOS boot specification is supported
                Targeted content distribution is supported
                UEFI is supported
        BIOS Revision: 1.62
        Firmware Revision: 18.29
vergence 2022-10
½ºÅÿÀ¹öÇ÷οìÀÇ ¿©·¯ ±ÛµéÀÌ ±×³É ±×·± °Å¶ó°í Çϳ׿ä. ¿À·ù ¾Æ´Ï¶ó°í.

* https://stackoverflow.com/questions/54784091/linux-core-ids-are-missing-in-cpu-info
* https://unix.stackexchange.com/questions/400605/understanding-core-ids

´©±º°¡´Â ÀÌ·± ¼³¸íÀ» Çسù³×¿ä.
* CPU°¡ Äھ ´õ ¸¹ÀÌ °®°í ÀÖÁö¸¸ Æß¿þ¾î°¡ ºñÈ°¼ºÈ­ ÇÑ °æ¿ì
* ÇÖ½º¿ÒÀ» Áö¿øÇÏ´Â ½Ã½ºÅÛÀÌ°í, ´õ ¸¹Àº ÄÚ¾îÀÇ CPU·Î ±³Ã¼µÉ ¶§¸¦ À§ÇØ ºñ¿öµÒ

* https://serverfault.com/questions/866573/cpu-core-id-values-not-contiguous
     
2cpu ¿¡¼­´Â ¸¹ÀºÁ¤º¸¸¦ ¾ò´Â °Í °°½À´Ï´Ù.
°í¼öºÐµéµµ ¸¹À¸½Å °Í °°°í¿ä.
vergence ´Ô ÁÁÀºÀÚ·á °¨»çÇÕ´Ï´Ù.
Ȥ½Ã ÇÏÀÌÆÛ¾²·¹µù ²ô½Ã°í, ¹°¸®ÀûÀÎ °³¼ö·Î ¿Ã·ÈÀ»¶§ Á¤»óÀûÀÎÁö ¿Âµµ¶û CORE ID°¡ Á¦´ë·Î Á¤·ÄµÇ´ÂÁö üũÇغ¸½Ê½Ã¿À.
Super I/O ¼¾¼­Ä¨ÀÌ ¹°¸®ÀûÀΰ͸¸? ó¸®Çϴ°ÇÁö.. ¾Ë¼ö°¡ ¾ø³×¿ä.
lm-sensors°¡ ´Ù¾çÇÏ°Ô hw¸¦ ´Ù Áö¿øÇÏ´Â°Ô ¾Æ´Ï´Ùº¸´Ï, ´ëºÎºÐ º¸µå Á¦Á¶»ç Àü¿ë¸ð´ÏÅ͸µÅøÀ» ¾²´Â °æ¿ì°¡ ¸¹½À´Ï´Ù.
lm-sensor´Â ±×·¯·Á´Ï ÇØ¾ß ÇÕ´Ï´Ù.
Super I/O SensorĨ ¸ðµ¨ÀÌ ¹ºÁö È®ÀÎÇؼ­ ÇØ´ç ¼¾¼­Ä¨ µå¶óÀ̹ö°¡ µû·Î ÀÖ´ÂÁöµµ üũÇغ¸¼Å¾ß ÇÕ´Ï´Ù.
ÇÏÀÌÆÛ¾²·¹µù¿¡¼­ ±×³É ÄÚ¾î °³¼ö¸¸ ¸ÂÀ¸¸é Å©°Ô ¹®Á¦ ¾øÀ»µí ÇÕ´Ï´Ù.

CPU Core ID ¸ÅÇÎ Á¤º¸µµ Çѹø È®ÀÎÇغ¸¼¼¿ä
# cat /sys/devices/system/cpu/cpu*/topology/thread_siblings_list | sort -n | uniq
     
¿¹ Çغ¸°Ú½À´Ï´Ù. °¨»çÈü´Ï´Ù.
¾Æ·¡ Á¤º¸´Â ±ÔÄ¢ÀûÀ̳׿ä.
$sudo cat /sys/devices/system/cpu/cpu*/topology/thread_siblings_list | sort -n | uniq
0,24
1,25
2,26
3,27
4,28
5,29
6,30
7,31
8,32
9,33
10,34
11,35
12,36
13,37
14,38
15,39
16,40
17,41
18,42
19,43
20,44
21,45
22,46
23,47
CMOS ¼Â¾÷ ¿¡¼­ CPU Äھ ÀüºÎ Enable ·Î µÇ¾î ÀÖ´ÂÁö È®ÀÎÇϼ¼¿ä.
     
¸ðµÎ enable µÇ¾î ÀÖ½À´Ï´Ù.


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