°Ô½Ã¹° 1,369°Ç
   
vcpu(Thread) dedicated ÇÒ´ç - Å×½ºÆ® ±¸ÀÚ·á¾÷
±Û¾´ÀÌ : ÃÖ°í°ü¸®ÀÚ ³¯Â¥ : 2020-03-02 (¿ù) 14:56 Á¶È¸ : 924
±ÛÁÖ¼Ò :
                                


1. vcpu dedicated / share
   CPU ¸®¼Ò½º ÇÒ´ç¹æ½Ä (¡°hw:cpu_policy¡±:¡±dedicated¡±)
   https://docs.openstack.org/admin¡©guide/compute¡©cpu¡©topologies.html


1) dedicated
   - Thread / Core °¡ cpu_id ¸¦ °¡Áö°í ÇÒ´ç
   - Áï ÀνºÅϽº´Â Ç×»ó µ¿ÀÏÇÑ cpu_id ³»¿¡¼­¸¸ »ç¿ë

# virsh vcpupin <domain>
VCPU: CPU Affinity
¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©
0: 2

Tasks: 177 total, 1 running, 176 sleeping, 0 stopped, 0 zombie
%Cpu0 : 0.3 us, 0.0 sy, 0.0 ni, 99.7 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
%Cpu1 : 0.3 us, 0.0 sy, 0.0 ni, 99.7 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
%Cpu2 : 99.7 us, 0.3 sy, 0.0 ni, 0.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
%Cpu3 : 0.3 us, 0.0 sy, 0.0 ni, 99.7 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
%Cpu4 : 0.0 us, 0.7 sy, 0.0 ni, 99.3 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
%Cpu5 : 0.3 us, 0.0 sy, 0.0 ni, 99.7 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
%Cpu6 : 0.3 us, 0.0 sy, 0.0 ni, 99.7 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
%Cpu7 : 1.3 us, 0.7 sy, 0.0 ni, 98.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st


2) share
   - Thread / Core °¡ share ÇüÅ·ΠÇÒ´ç
   - Áï, µ¿ÀÏ Àåºñ³»¿¡ ƯÁ¤ÀνºÅϽº¿¡¼­ CPU ¸®¼Ò½ººÎÇÏ°¡ ¹ß»ýÇÒ °æ¿ì Àüü ½Ã½ºÅÛ¿¡ ¿µÇâ

# virsh vcpupin <domain>
VCPU: CPU Affinity
¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©¡©
0: 0¡©7

Tasks: 177 total, 1 running, 176 sleeping, 0 stopped, 0 zombie
%Cpu0 : 0.3 us, 0.0 sy, 0.0 ni, 99.7 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
%Cpu1 : 0.3 us, 0.0 sy, 0.0 ni, 99.7 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
%Cpu2 : 99.7 us, 0.3 sy, 0.0 ni, 0.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
%Cpu3 : 0.3 us, 0.0 sy, 0.0 ni, 99.7 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
%Cpu4 : 0.0 us, 0.7 sy, 0.0 ni, 99.3 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
%Cpu5 : 0.3 us, 0.0 sy, 0.0 ni, 99.7 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
%Cpu6 : 0.3 us, 0.0 sy, 0.0 ni, 99.7 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
%Cpu7 : 1.3 us, 0.7 sy, 0.0 ni, 98.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st



2. Å×½ºÆ® Àåºñ
   - 1 Socket 4Core 8Thread / 2 Socket 12Core 24Thread

CPU : Intel(R) Xeon(R) CPU E31230
    CPU(s): 8
    On¡©line CPU(s) list: 0¡©7
    Thread(s) per core: 2
    Core(s) per socket: 4
    Socket(s): 1
CPU : Intel(R) Xeon(R) CPU E5¡©2620
    CPU(s): 24
    On¡©line CPU(s) list: 0¡©23
    Thread(s) per core: 2
    Core(s) per socket: 6
    Socket(s): 2


3. Å×½ºÆ® °³¿ä
¸ñÀû : vcpu(Thread) ÇÒ´ç½Ã Á¤¼ö¿¬»êºÎ·Î ÀÎÇÑ ¼º´ÉÀúÇÏ ÃÖ¼ÒÈ­ ¹æ¹ý

1) vcpu(thread) Áõ°¡¿¡ µû¸¥ ¼º´Éº¯È­
2) µ¿ÀÏÄھ 2°³ÀÇ 1vcpu(thread) ÀνºÅϽº »ý¼º½Ã ¼º´Éº¯È­
3) ´Ù¸¥Äھ 2°³ÀÇ 1vcpu(thread) ÀνºÅϽº »ý¼º½Ã ¼º´Éº¯È­
4) µ¿ÀÏÄھ ÇÒ´çµÈ ÀνºÅϽº¿¡¼­ ¼­·Î ¿µÇâ¾øÀÌ »ç¿ë°¡´ÉÇÑ ¹æ¹ýÀº?
¡© cpu_thread_policy=isolate
5) ¦¼öÇÒ´ç½Ã Thread ºÐ¹è ¾Ë°í¸®Áò


4. Core / Thread È®ÀÎ
CPU ±¸Á¶ Âü°í url
http://idchowto.com/?p=1520
http://m.todayhumor.co.kr/view.php?table=bestofbest&no=168938


cat /sys/devices/system/cpu/*/topology/thread_siblings_list |sort -u
0,12
1,13
10,22
11,23
2,14
3,15
4,16
5,17
6,18
7,19
8,20
9,21

# virsh capabilities |grep cpu
<cpu>
</cpu>
<cpus num='12'>
<cpu id='0' socket_id='0' core_id='0' siblings='0,12'/>
<cpu id='1' socket_id='0' core_id='1' siblings='1,13'/>
<cpu id='2' socket_id='0' core_id='2' siblings='2,14'/>
<cpu id='3' socket_id='0' core_id='3' siblings='3,15'/>
<cpu id='4' socket_id='0' core_id='4' siblings='4,16'/>
<cpu id='5' socket_id='0' core_id='5' siblings='5,17'/>
.......................
<cpu id='21' socket_id='1' core_id='3' siblings='9,21'/>
<cpu id='22' socket_id='1' core_id='4' siblings='10,22'/>
<cpu id='23' socket_id='1' core_id='5' siblings='11,23'/>
</cpus>


5. ¼º´Éüũ (dedicated)
   - socket, core, thread
   - Benchmark Tool : sysbench
# sysbench ¡©¡©num¡©threads=1 ¡©¡©test=cpu ¡©¡©cpu¡©max¡©prime=20000 ¡©¡©validate run

   1) vcpu(thread) Áõ°¡¿¡ µû¸¥ ¼³´Éüũ
     1vcpu
     - total time: 24.7478s
    2vcpu
     - total time: 14.0255s

   2) µ¿ÀÏÄھ vcpu(thread) ÀνºÅϽº ÇÒ´ç ¼º´Éüũ
     - VM1 : 24.7478s
     - VM2 : 31.2511s
       ¡Ø ÀϺΠ¿µÇâ

   3) ´Ù¸¥Äھ vcpu(thread) ÀνºÅϽº ÇÒ´ç ¼º´Éüũ
    -VM1 : 24.8439s
    - VM2 : 25.0490s
      ¡Ø º¯È­ ¾øÀ½

vcpu(thread) ¿¡ µû¸¥ ¼º´Éº¯È­´Â ÀÖÀ¸¸ç µ¿ÀÏ core ³» ÇÒ´çµÈ vcpu(thread) ÀνºÅϽº´Â ¼­·Î °£¼·ÀÌ ¹ß»ýÇÑ´Ù .


6. ±â´Éüũ (dedicated)
   1) cpu_thread_policy=isolate
    - Äھ vcpu¸¦ µ¶¸³ÀûÀ¸·Î »ç¿ëÇÏ°Ú´Ù´Â ÀǹÌÀ̳ª Ȧ¼öÇÒ´ç½Ã ³ª¸ÓÁö vcpu´Â ºñ¾îÀÖÀ½
    - ¸®¼Ò½º ³¶ºñ


  2) vcpu ¦¼öÇÒ´ç
    - ¾Ë°í¸®Áò ¹«Á¶°Ç µ¿ÀÏÄÚ¾î·Î thread ÇÒ´ç
    - socketÀ» ³Ñ¾î°¡´Â ¸®¼Ò½º ÇÒ´ç Áö¿øÇÏÁö ¾ÊÀ½


   3) vcpu Ȧ¼öÇÒ´ç
    - Äھ ºñ¾îÀÖ´Â vcpu(thread)´Â 1vcpu ¸¸ ÇÒ´ç°¡´É
    - ÀϺΠÄÚ¾î´Â dedicated ³»¿¡¼­µµ Share per Core


¡Ø ÀϺΠÄÚ¾î´Â ¼­·Î ´Ù¸¥ ÀνºÅϽº°¡ »ý¼ºµÇ¾î ÀνºÅϽº°£¿¡ °£¼·ÀÌ ¹ß»ýÇÒ¼ö ÀÖ´Ù.


7. ¿ä¾à 
   - ±âº» vcpu ÇÒ´çÀº 2 / 4 / 8 ¦¼öÇüÅ·ΠÇÒ´ç
   - 1vcpu(thread) »óÇ°Àº dedicated / Share per Core
   - Socket³» vcpu(thread) ÀÌ»óÀÇ °í½ºÆå »óÇ°Àº share ´Üµ¶À¸·Î ¿î¿µ



À̸§ Æнº¿öµå
ºñ¹Ð±Û (üũÇÏ¸é ±Û¾´À̸¸ ³»¿ëÀ» È®ÀÎÇÒ ¼ö ÀÖ½À´Ï´Ù.)
¿ÞÂÊÀÇ ±ÛÀÚ¸¦ ÀÔ·ÂÇϼ¼¿ä.
   

 



 
»çÀÌÆ®¸í : ¸ðÁö¸®³× | ´ëÇ¥ : ÀÌ°æÇö | °³ÀÎÄ¿¹Â´ÏƼ : ·©Å°´åÄÄ ¿î¿µÃ¼Á¦(OS) | °æ±âµµ ¼º³²½Ã ºÐ´ç±¸ | ÀüÀÚ¿ìÆí : mojily°ñ¹ðÀÌchonnom.com Copyright ¨Ï www.chonnom.com www.kyunghyun.net www.mojily.net. All rights reserved.