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node1 - 16 vCPU / 16GB 메모리 node2 - 8 vCPU / 8GB 메모리
F5 로드 밸런서(라운드 로빈) 뒤에 있는 머신과 실행 중인 MongoosIM애플리케이션이 모두 있지만 16 vCPU 코어 머신의 CPU 사용률이 낮은 CPU 클라우드 노드보다 항상 높은 것으로 나타났습니다. 이유는 무엇입니까?
노드 1
top - 04:08:00 up 113 days, 10:50, 1 user, load average: 5.78, 5.78, 5.73
Tasks: 215 total, 1 running, 214 sleeping, 0 stopped, 0 zombie
%Cpu0 : 7.5 us, 4.7 sy, 0.0 ni, 86.0 id, 0.0 wa, 0.0 hi, 1.1 si, 0.7 st
%Cpu1 : 7.6 us, 3.1 sy, 0.0 ni, 87.8 id, 0.0 wa, 0.0 hi, 1.0 si, 0.3 st
%Cpu2 : 32.0 us, 18.9 sy, 0.0 ni, 46.5 id, 0.0 wa, 0.0 hi, 2.2 si, 0.4 st
%Cpu3 : 32.3 us, 19.0 sy, 0.0 ni, 46.1 id, 0.0 wa, 0.0 hi, 1.9 si, 0.7 st
%Cpu4 : 13.3 us, 6.0 sy, 0.0 ni, 80.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.7 st
%Cpu5 : 4.1 us, 1.4 sy, 0.0 ni, 94.2 id, 0.0 wa, 0.0 hi, 0.0 si, 0.3 st
%Cpu6 : 42.4 us, 23.6 sy, 0.0 ni, 29.7 id, 0.0 wa, 0.0 hi, 4.0 si, 0.4 st
%Cpu7 : 40.2 us, 24.4 sy, 0.0 ni, 31.0 id, 0.0 wa, 0.0 hi, 4.1 si, 0.4 st
%Cpu8 : 7.5 us, 3.9 sy, 0.0 ni, 88.3 id, 0.0 wa, 0.0 hi, 0.0 si, 0.4 st
%Cpu9 : 3.4 us, 2.7 sy, 0.0 ni, 93.6 id, 0.0 wa, 0.0 hi, 0.0 si, 0.3 st
%Cpu10 : 42.3 us, 25.9 sy, 0.0 ni, 27.7 id, 0.0 wa, 0.0 hi, 3.6 si, 0.4 st
%Cpu11 : 42.0 us, 24.2 sy, 0.0 ni, 29.7 id, 0.0 wa, 0.0 hi, 3.7 si, 0.4 st
%Cpu12 : 10.8 us, 5.4 sy, 0.0 ni, 83.5 id, 0.0 wa, 0.0 hi, 0.0 si, 0.4 st
%Cpu13 : 5.5 us, 3.4 sy, 0.0 ni, 90.8 id, 0.0 wa, 0.0 hi, 0.0 si, 0.3 st
%Cpu14 : 38.6 us, 18.7 sy, 0.0 ni, 40.8 id, 0.0 wa, 0.0 hi, 1.5 si, 0.4 st
%Cpu15 : 36.7 us, 21.1 sy, 0.0 ni, 39.3 id, 0.0 wa, 0.0 hi, 2.2 si, 0.7 st
KiB Mem : 16265260 total, 10171104 free, 4512244 used, 1581912 buff/cache
KiB Swap: 4194300 total, 3299368 free, 894932 used. 11295924 avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
24196 mongoos+ 20 0 6133060 4.0g 5356 S 634.2 25.8 2008:49 beam.smp
15607 root 20 0 369660 4332 2200 S 3.0 0.0 16:15.21 syslog-ng
28638 telegraf 20 0 1467376 10920 2572 S 1.0 0.1 66:32.90 telegraf
9 root 20 0 0 0 0 S 0.3 0.0 220:19.68 rcu_sched
24 root 20 0 0 0 0 S 0.3 0.0 1:18.90 ksoftirqd/3
1 root 20 0 191916 2852 1632 S 0.0 0.0 50:34.00 systemd
2 root 20 0 0 0 0 S 0.0 0.0 0:07.09 kthreadd
3 root 20 0 0 0 0 S 0.0 0.0 1:46.54 ksoftirqd/0
5 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 kworker/0:0H
7 root rt 0 0 0 0 S 0.0 0.0 0:08.29 migration/0
8 root 20 0 0 0 0 S 0.0 0.0 0:00.00 rcu_bh
10 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 lru-add-drain
11 root rt 0 0 0 0 S 0.0 0.0 0:38.17 watchdog/0
12 root rt 0 0 0 0 S 0.0 0.0 0:34.54 watchdog/1
13 root rt 0 0 0 0 S 0.0 0.0 0:26.85 migration/1
14 root 20 0 0 0 0 S 0.0 0.0 0:36.04 ksoftirqd/1
노드 2
top - 04:08:03 up 11 days, 8:44, 1 user, load average: 4.85, 5.19, 5.32
Tasks: 157 total, 1 running, 156 sleeping, 0 stopped, 0 zombie
%Cpu0 : 33.7 us, 10.8 sy, 0.0 ni, 54.1 id, 0.0 wa, 0.0 hi, 0.7 si, 0.7 st
%Cpu1 : 30.1 us, 9.2 sy, 0.0 ni, 59.2 id, 0.0 wa, 0.0 hi, 0.7 si, 0.7 st
%Cpu2 : 50.4 us, 21.6 sy, 0.0 ni, 11.9 id, 0.0 wa, 0.0 hi, 16.2 si, 0.0 st
%Cpu3 : 56.8 us, 25.0 sy, 0.0 ni, 17.9 id, 0.0 wa, 0.0 hi, 0.0 si, 0.4 st
%Cpu4 : 28.4 us, 9.7 sy, 0.0 ni, 58.6 id, 0.0 wa, 0.0 hi, 0.7 si, 2.6 st
%Cpu5 : 26.5 us, 10.3 sy, 0.0 ni, 60.3 id, 0.0 wa, 0.0 hi, 0.4 si, 2.6 st
%Cpu6 : 32.1 us, 8.8 sy, 0.0 ni, 57.3 id, 0.0 wa, 0.0 hi, 0.4 si, 1.5 st
%Cpu7 : 26.8 us, 9.6 sy, 0.0 ni, 62.1 id, 0.0 wa, 0.0 hi, 0.4 si, 1.1 st
KiB Mem : 8009896 total, 380252 free, 4294772 used, 3334872 buff/cache
KiB Swap: 0 total, 0 free, 0 used. 3085036 avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
17526 mongoos+ 20 0 5134916 3.715g 5364 S 406.3 48.6 1496:28 beam.smp
1640 root 20 0 567508 7544 1924 S 3.0 0.1 408:19.27 syslog-ng
3669 tcpdump 20 0 32404 9316 7964 S 2.3 0.1 471:10.66 tcpdump
544 dbus 20 0 70440 1244 620 S 0.7 0.0 4:14.68 dbus-daemon
9 root 20 0 0 0 0 S 0.3 0.0 67:35.00 rcu_sched
417 root 20 0 39476 3628 3228 S 0.3 0.0 1:16.69 systemd-journal
907 root 20 0 523728 5724 2988 S 0.3 0.1 0:33.15 rsyslogd
1 root 20 0 43856 3024 1296 S 0.0 0.0 3:26.52 systemd
2 root 20 0 0 0 0 S 0.0 0.0 0:00.37 kthreadd
3 root 20 0 0 0 0 S 0.0 0.0 0:48.60 ksoftirqd/0
5 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 kworker/0:0H
7 root rt 0 0 0 0 S 0.0 0.0 0:01.63 migration/0
8 root 20 0 0 0 0 S 0.0 0.0 0:00.00 rcu_bh
10 root rt 0 0 0 0 S 0.0 0.0 0:04.42 watchdog/0
11 root rt 0 0 0 0 S 0.0 0.0 0:04.02 watchdog/1
12 root rt 0 0 0 0 S 0.0 0.0 0:02.75 migration/1
13 root 20 0 0 0 0 S 0.0 0.0 0:29.87 ksoftirqd/1
15 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 kworker/1:0H
16 root rt 0 0 0 0 S 0.0 0.0 0:05.04 watchdog/2
17 root rt 0 0 0 0 S 0.0 0.0 0:03.58 migration/2
18 root 20 0 0 0 0 S 0.0 0.0 11:16.55 ksoftirqd/2
20 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 kworker/2:0H
21 root rt 0 0 0 0 S 0.0 0.0 0:03.88 watchdog/3
22 root rt 0 0 0 0 S 0.0 0.0 0:01.89 migration/3