Eu sei que isso foi solicitado várias vezes e, geralmente, wa
causa alta carga, mesmo se a CPU não for a culpada. No entanto, no nosso caso, wa
é ~ 0 e a CPU está em ~ 45% em um servidor dedicado de 8 núcleos e 8 threads. Mas a média de carga é 8.33, 8.47, 8.28
Aqui está um dump de top
:
top - 11:16:41 up 139 days, 49 min, 1 user, load average: 8.33, 8.47, 8.28
Tasks: 313 total, 5 running, 308 sleeping, 0 stopped, 0 zombie
%Cpu(s): 42.4 us, 13.4 sy, 0.0 ni, 36.9 id, 0.0 wa, 0.0 hi, 7.3 si, 0.0 st
KiB Mem: 32939280 total, 30515232 used, 2424048 free, 120408 buffers
KiB Swap: 1046520 total, 96056 used, 950464 free. 23932456 cached Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
21382 root 20 0 70288 11360 2028 R 100.0 0.0 22406:05 supervisord
1774 www-data 20 0 286472 30320 8052 S 28.6 0.1 295:05.54 php
309 www-data 20 0 286236 29948 8056 S 28.3 0.1 298:05.63 php
32338 www-data 20 0 286296 30136 8056 S 27.3 0.1 300:02.28 php
913 www-data 20 0 286232 30080 8060 S 26.6 0.1 297:14.66 php
1692 www-data 20 0 286560 30276 8056 S 26.3 0.1 300:22.92 php
32470 www-data 20 0 286608 30324 8052 S 26.3 0.1 296:58.59 php
32029 www-data 20 0 286360 29952 8056 S 25.9 0.1 297:50.51 php
1083 www-data 20 0 286236 30076 8056 S 24.9 0.1 298:42.59 php
32334 www-data 20 0 286604 30368 8052 R 24.6 0.1 300:45.32 php
1214 www-data 20 0 286224 29808 8060 S 24.3 0.1 290:03.53 php
32027 www-data 20 0 286680 30404 8056 S 23.9 0.1 297:58.06 php
1700 www-data 20 0 286508 30096 8060 S 23.6 0.1 286:11.93 php
25453 beansta+ 20 0 1315140 1.242g 616 S 12.0 4.0 342:41.49 beanstalkd
10410 root 20 0 12240 7316 2096 S 3.7 0.0 360:16.80 flash_linux_amd
31498 www-data 20 0 275036 17868 7696 S 2.7 0.1 88:05.09 php
31947 www-data 20 0 274772 17592 7644 S 2.3 0.1 86:49.37 php
1416 www-data 20 0 276064 19404 8096 S 2.0 0.1 0:20.29 php
1427 www-data 20 0 276616 20192 8088 S 2.0 0.1 0:18.78 php
32021 www-data 20 0 275036 17876 7696 S 2.0 0.1 86:26.58 php
32049 www-data 20 0 282144 25776 8088 S 2.0 0.1 0:36.40 php
1433 www-data 20 0 275740 19076 8100 S 1.7 0.1 0:17.99 php
1437 www-data 20 0 275752 19100 8104 S 1.7 0.1 0:17.95 php
14251 www-data 20 0 280348 24008 8112 S 1.7 0.1 3:25.54 php
15057 www-data 20 0 275996 19400 8116 R 1.7 0.1 3:11.02 php
31680 www-data 20 0 282628 26120 8104 S 1.7 0.1 0:36.90 php
31682 www-data 20 0 282920 26436 8100 S 1.7 0.1 0:38.47 php
1431 www-data 20 0 276000 19496 8104 S 1.3 0.1 0:18.67 php
70 root 20 0 0 0 0 S 1.0 0.0 353:48.51 ksoftirqd/6
19845 root 20 0 25620 1752 1116 S 0.7 0.0 59:12.64 top
7 root 20 0 0 0 0 R 0.3 0.0 216:11.85 rcu_sched
15 root 20 0 0 0 0 S 0.3 0.0 66:01.10 rcuos/7
230 root 20 0 0 0 0 S 0.3 0.0 186:54.85 md2_raid1
16833 root 20 0 0 0 0 S 0.3 0.0 0:01.08 kworker/0:1
24417 www-data 20 0 349400 17600 13192 S 0.3 0.1 1:15.44 php5-fpm
30203 root 20 0 0 0 0 S 0.3 0.0 0:00.53 kworker/2:2
1 root 20 0 34172 2752 1228 S 0.0 0.0 3:29.38 init
2 root 20 0 0 0 0 S 0.0 0.0 0:03.85 kthreadd
3 root 20 0 0 0 0 S 0.0 0.0 66:10.86 ksoftirqd/0
5 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 kworker/0:0H
8 root 20 0 0 0 0 S 0.0 0.0 101:00.72 rcuos/0
9 root 20 0 0 0 0 S 0.0 0.0 75:26.50 rcuos/1
10 root 20 0 0 0 0 S 0.0 0.0 66:02.02 rcuos/2
11 root 20 0 0 0 0 S 0.0 0.0 80:03.94 rcuos/3
12 root 20 0 0 0 0 S 0.0 0.0 26:27.47 rcuos/4
Em que média de carga devo ficar preocupado (o Nagios me acordou) para esta máquina?