최근에 점검하다가 발생한 상황인데.. 처음겪는 일이라 당황스럽네요 ㄷㄷ
Dell R440 모델에
CPU는 제온 골드 5222 4코어 * 2
메모리 32G
디스크 1.2TB 2개에 레이드1로 묶어서 쓰고있습니다.
이게 문제가.. CPU 점유율이 어느순간 보니 7~80%를 찍고있더라구요
평소 많아야 2~5%인데.. 올라가있는 서비스 전부 disable시키고 재부팅 시켜봤습니다.
재부팅 후 nmon으로 cpu 상태를 봤는데
???
CPU1번만 미친듯이 돌아가고 있네요(재부팅 직후 상황입니다 저게)
top로 프로세스를 봐도 많아야 0.3?밖에 cpu점유를 안하는데.. 왜저러는지 모르겠습니다 ㅠㅠ
idrac 로그를 봐도 전부 정상인걸로 나오고.. 희안하네요 참
조만간 바이오스랑 idrac 펌웨어 올려보고 CPU 스왑도 한번 해볼 예정입니다.
이런 비슷한 상황 겪으신분 계신가요? 있으시면 어떻게 조치했는지 궁금합니다.
++
저때 찍었던 top사진입니다
ϰ
ٸ ũ OS ٽ ġؼ Ʈũ Ǵ κ ٽ Ȯغڽϴ..
Ȥó ŷ ؼ ý Ǿ CPU ϰ ְŵ..
nmon ô Ʈ 20 Ѿµ ó ˳..
nmon Ȱǰ? AIX ߽Ծ.. ݵ
÷ ϴٰ ƴ ̾߱ ϴٰ Ī ˰ Ǿϴ..
뷫 ˰ ٷ մϴ..
..
IBM AIX ϴ ƴѰ??
AIX ʿ ִ°ɷ ˰ֽϴ
äϴ ° ϴ.
̷ ѵ core ϴµ Ưϳ
ä
GPU ° ˾Ҵµ.. CPUε ̱;
äɸŸ.. о 缳ġؾ Ҽ ְڳ;
PC ʰ PC
top ?
0.7, 0.3 0.3 0 0 0... 0.7ϴ.
ؼ top ߰غ
nmon ???
http://nmon.sourceforge.net/pmwiki.php
nmon
α ġؼ ý κ մϴ..
ٸ ̶ ұ??
CentOS 7.7̶ ֽ nmon ȮѰ̴ϴ
Ȥó nmon ϼ üũ ִ ٸ α üũ غ Ͻô
Top ɾ Ͻô غ Դϴ..
top load average cpu us (user) sy(system) ?(ù° ° Դϴ)
$ top
top - 18:16:14 up 19 days, 4:38, 4 users, load average: 0.01, 0.04, 0.08
Tasks: 192 total, 1 running, 191 sleeping, 0 stopped, 0 zombie
%Cpu(s): 0.0 us, 0.2 sy, 0.0 ni, 99.8 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
߰
0.7, 0.3 0.3 0 0 0... 0.7ϴ.
Ͻôٰ ...
0.7 0.3 0.3 0 0 0 ǹ̴ μ cpu뷮 Ѱ̴ϴ. load average Ѱ ƴմϴ..
( ó ÷ )Ʈũ OS Ƽ ٸ α̳ Ȯ ϴ..
OS Ҵٸ ϴ ̴ϱ..
Ȳ ϴ ؾ ڳ..
https://www.ibm.com/mysupport/s/question/0D50z00006LKtboCAD/cpu-usage-differences-between-nmon-and-topas-38-vmstat?language=ko
12 Jun 2007 (15 )
There are 2 things that I know of that cause NMON to report different CPU usage stats than topas and vmstat. I believe these are design decisions in NMON rather than bugs.
The first thing is SMT. I was at a presentation that Nigel gave and he discussed the difficulties that SMT posed in determining what 100% was for a Power5 core/cpu. When SMT is turned off, the system sees 1 logical CPU for each physical (or virtual in micropartition LPARs) CPU. Lets assume that 1 logical CPU can perform 100 units of work. When it is doing 100 units of work, it is 100% busy.
https://www.cyberciti.biz/faq/linux-hide-processes-from-other-users/
⺻ б ̹ оͼ óϱⶫ ȯ̰, Ʈ ̵ иϸ DZⶫ ū δ㵵 ϴ ( ߴܵǴ° ƾ)
dateno1ȸ õغ ȵǸ OS缳ġ غ մϴ. 帮ڽϴ ^^
top kswapd0 ̸ CPU 100% ϰ ־ kill -9 kswapd0 ó
user ¿ crontal -l ó Ʒ Ȯ߽ϴ.
1 1 */2 * * /home/xxx/.configrc/a/upd>/dev/null 2>&1
@reboot /home/xxx/.configrc/a/upd>/dev/null 2>&1
5 8 * * 0 /home/xxx/.configrc/b/sync>/dev/null 2>&1
@reboot /home/xxx/.configrc/b/sync>/dev/null 2>&1
0 0 */3 * * /dev/shm/.X09/.rsync/c/aptitude>/dev/null 2>&1
crontab ִ
/home/xxx/.configrc
/dev/shm/.X09/ 1 ϴ.
ʹ ٸ Ȳ̰ ̷ 쵵 ־ٴ ּ.