Tengo dos instancias de OpenStack.
nodo1 - 16 vCPU / 16 GB de memoria nodo2 - 8 vCPU / 8 GB de memoria
tanto la máquina detrás del balanceador de carga F5 (round-robin) como MongoosIMla aplicación en ejecución, pero estoy notando que la utilización de la CPU de la máquina central de 16 vCPU siempre es alta que la del nodo de nube con poca CPU, ¿por qué?
nodo 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
nodo 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