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CPU is used or not?!


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Hi, 

 

from 6.8.x version I've problem with CPU usage.

After few days from boot one core is utilized at 100%... sometimes it's happen after 5 days.. sometimes after 2 weeks.

The case before it was core 10, but now after about 2 weeks from boot it was core 15. I didn't restart server this time, and after two weeks more, one more core was utilized at 100%, so I did have core 11, core 15 used by something and one more at ~60%.

 

RXw82rd.png

 

I start digging and found this:

 

top - 01:30:06 up 43 days, 15:23,  4 users,  load average: 3.58, 3.08, 3.26
Tasks:   3 total,   0 running,   3 sleeping,   0 stopped,   0 zombie
%Cpu0  : 16.7 us,  1.4 sy,  0.0 ni, 81.6 id,  0.0 wa,  0.0 hi,  0.3 si,  0.0 st
%Cpu1  :  9.1 us,  0.7 sy,  0.0 ni, 90.2 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
%Cpu2  : 19.5 us,  1.7 sy,  0.0 ni, 77.4 id,  1.0 wa,  0.0 hi,  0.3 si,  0.0 st
%Cpu3  :  1.7 us,  1.0 sy,  0.0 ni, 97.3 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
%Cpu4  : 30.0 us,  2.0 sy,  0.0 ni, 67.0 id,  0.7 wa,  0.0 hi,  0.3 si,  0.0 st
%Cpu5  :  9.7 us,  1.0 sy,  0.0 ni, 89.3 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
%Cpu6  :  7.1 us, 10.2 sy,  0.0 ni, 82.7 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
%Cpu7  : 10.1 us,  0.7 sy,  0.0 ni, 89.2 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
%Cpu8  :  2.0 us,  5.0 sy,  0.0 ni, 89.6 id,  3.3 wa,  0.0 hi,  0.0 si,  0.0 st
%Cpu9  :  8.0 us,  4.3 sy,  0.0 ni, 82.7 id,  4.7 wa,  0.0 hi,  0.3 si,  0.0 st
%Cpu10 :  3.0 us,  4.1 sy,  0.0 ni, 90.5 id,  2.4 wa,  0.0 hi,  0.0 si,  0.0 st
%Cpu11 :  2.0 us,  2.7 sy,  0.0 ni,  0.0 id, 95.3 wa,  0.0 hi,  0.0 si,  0.0 st
%Cpu12 :  5.3 us,  4.3 sy,  0.0 ni, 87.0 id,  3.0 wa,  0.0 hi,  0.3 si,  0.0 st
%Cpu13 :  1.0 us,  3.0 sy,  0.0 ni, 93.3 id,  2.7 wa,  0.0 hi,  0.0 si,  0.0 st
%Cpu14 : 26.7 us, 23.3 sy,  0.0 ni, 49.3 id,  0.7 wa,  0.0 hi,  0.0 si,  0.0 st
%Cpu15 : 12.7 us, 10.7 sy,  0.0 ni,  0.0 id, 76.6 wa,  0.0 hi,  0.0 si,  0.0 st
MiB Mem :  32160.7 total,    230.6 free,  22955.5 used,   8974.6 buff/cache
MiB Swap:      0.0 total,      0.0 free,      0.0 used.   7836.4 avail Mem 

  PID USER      PR  NI    VIRT    RES    SHR S  %CPU  %MEM     TIME+ COMMAND                                                                                                                                                         
20710 root      20   0 3830296   3.2g  22160 S  71.3  10.1  12117:42 /usr/bin/qemu-system-x86_64 -name guest=OPNsense,debug-threads=on -S -object secret,id=masterKey0,format=raw,file=/var/lib/libvirt/qemu/domain-3-OPNsense/mast+ 
20595 root      20   0 4995344   4.2g  22404 S  30.7  13.3  19528:28 /usr/bin/qemu-system-x86_64 -name guest=Windows 10,debug-threads=on -S -object secret,id=masterKey0,format=raw,file=/var/lib/libvirt/qemu/domain-2-Windows 10/+ 
 7680 root      20   0 4863852   4.1g  22224 S   9.3  13.1   5473:36 /usr/bin/qemu-system-x86_64 -name guest=appliance,debug-threads=on -S -object secret,id=masterKey0,format=raw,file=/var/lib/libvirt/qemu/domain-1-ap+

 
OPNsens/Windows it's for tests... not used and was at idle... only turned on.

Third VM is used little bit, but CPU usage is at ~3% when I check it from VM site.

 

So I turned off  all VM, but CPU still was used... so I turned off docker also.. and still get hig cpu usage at cores 11/15.

 

top - 02:03:49 up 43 days, 15:57,  4 users,  load average: 3.00, 3.11, 3.38
Tasks: 363 total,   1 running, 362 sleeping,   0 stopped,   0 zombie
%Cpu0  :  0.5 us,  0.0 sy,  0.0 ni, 99.5 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
%Cpu1  :  0.0 us,  0.0 sy,  0.0 ni,100.0 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
%Cpu2  :  0.0 us,  0.0 sy,  0.0 ni,100.0 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
%Cpu3  :  0.0 us,  0.0 sy,  0.0 ni,100.0 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
%Cpu4  :  0.0 us,  0.0 sy,  0.0 ni,100.0 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
%Cpu5  :  0.0 us,  0.0 sy,  0.0 ni,100.0 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
%Cpu6  :  0.5 us,  0.0 sy,  0.0 ni, 99.5 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
%Cpu7  :  0.0 us,  0.0 sy,  0.0 ni,100.0 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
%Cpu8  :  0.0 us,  0.0 sy,  0.0 ni,100.0 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
%Cpu9  :  0.0 us,  0.0 sy,  0.0 ni,100.0 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
%Cpu10 :  0.0 us,  0.0 sy,  0.0 ni,100.0 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
%Cpu11 :  0.0 us,  0.0 sy,  0.0 ni,  0.0 id,100.0 wa,  0.0 hi,  0.0 si,  0.0 st
%Cpu12 :  0.0 us,  0.0 sy,  0.0 ni,100.0 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
%Cpu13 :  0.0 us,  0.0 sy,  0.0 ni,100.0 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
%Cpu14 :  0.5 us,  0.0 sy,  0.0 ni, 99.5 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
%Cpu15 :  0.0 us,  0.0 sy,  0.0 ni,  0.0 id,100.0 wa,  0.0 hi,  0.0 si,  0.0 st
MiB Mem :  32160.7 total,  22289.2 free,    680.0 used,   9191.5 buff/cache
MiB Swap:      0.0 total,      0.0 free,      0.0 used.  30114.5 avail Mem 

PID USER      PR  NI    VIRT    RES    SHR S  %CPU  %MEM     TIME+ COMMAND                                                                                                                                                         
5614 root      20   0  283636   4124   3352 S   1.1   0.0 315:48.99 emhttpd
781 root      20   0       0      0      0 I   0.5   0.0   0:01.72 kworker/3:1-events
15903 root      20   0    9120   5372   4852 S   0.5   0.0   0:00.37 sshd
32758 root      20   0       0      0      0 I   0.5   0.0   0:03.59 kworker/2:0-events  

So I turned off everything, not users connected and still CPU is used by something.. because I can't find what use my processor, I did try another cpu-tools.

 

Iit's result from htop: (instead of top)

  1  [              0.0%]   5  [|             0.7%]   9  [              0.0%]   13 [              0.0%]
  2  [              0.0%]   6  [              0.0%]   10 [              0.0%]   14 [||            1.3%]
  3  [              0.0%]   7  [              0.0%]   11 [              0.0%]   15 [              0.0%]
  4  [              0.0%]   8  [              0.0%]   12 [              0.0%]   16 [              0.0%]
  Mem[||||||||||||||||                 1.56G/31.4G]   Tasks: 53, 21 thr; 1 running
  Swp[                                       0K/0K]   Load average: 3.00 3.02 3.24
                                                      Uptime: 43 days, 16:03:17

  PID USER      PRI  NI  VIRT   RES   SHR S CPU% MEM%   TIME+  Command
 5614 root       20   0  276M  4124  3352 S  1.3  0.0  5h15:50 /usr/local/sbin/emhttpd
 5731 root       20   0  276M  4124  3352 S  1.3  0.0  4h50:57 /usr/local/sbin/emhttpd
14008 root       20   0  6432  4836  2872 R  0.7  0.0  0:00.55 htop
13996 root       20   0  102M 13076  7304 S  0.7  0.0  0:00.06 php-fpm: pool www
 7736 root       20   0 1264M 40588  1060 S  0.7  0.1  0:00.40 /usr/local/sbin/shfs /mnt/user -disks 511 204
13293 root       20   0  102M 13080  7304 S  0.7  0.0  0:00.16 php-fpm: pool www
 8508 root       20   0 1264M 40588  1060 S  0.7  0.1  0:00.33 /usr/local/sbin/shfs /mnt/user -disks 511 204
 2539 root       20   0 1264M 40588  1060 S  0.7  0.1  0:00.57 /usr/local/sbin/shfs /mnt/user -disks 511 204
 6021 root       20   0 1264M 40588  1060 S  0.0  0.1 14h02:16 /usr/local/sbin/shfs /mnt/user -disks 511 204
 3161 root       20   0 1264M 40588  1060 S  0.0  0.1  0:00.53 /usr/local/sbin/shfs /mnt/user -disks 511 204
13254 root       20   0  102M 13084  7304 S  0.0  0.0  0:00.17 php-fpm: pool www
13971 root       20   0  102M 13076  7304 S  0.0  0.0  0:00.05 php-fpm: pool www
31448 root       20   0 1264M 40588  1060 S  0.0  0.1  0:00.72 /usr/local/sbin/shfs /mnt/user -disks 511 204
13360 root       20   0  102M 12888  7112 S  0.0  0.0  0:00.15 php-fpm: pool www
14069 root       20   0  102M 12532  6780 S  0.0  0.0  0:00.03 php-fpm: pool www
15903 root       20   0  9120  5372  4852 S  0.0  0.0  0:00.46 sshd: root@pts/3
 7490 root       20   0  146M  8348  3792 S  0.0  0.0 21:14.61 nginx: worker process
 5730 root       20   0  276M  4124  3352 S  0.0  0.0 15:01.49 /usr/local/sbin/emhttpd
30845 root       20   0 1264M 40588  1060 S  0.0  0.1  0:00.68 /usr/local/sbin/shfs /mnt/user -disks 511 204
 5803 root       20   0  3788  2820  2548 S  0.0  0.0 26:37.57 /bin/bash /usr/local/emhttp/webGui/scripts/di
 9541 root       20   0 1264M 40588  1060 S  0.0  0.1  0:00.30 /usr/local/sbin/shfs /mnt/user -disks 511 204
 1880 root       20   0 1264M 40588  1060 S  0.0  0.1  0:00.54 /usr/local/sbin/shfs /mnt/user -disks 511 204
 2171 ntp        20   0 77212  4352  3716 S  0.0  0.0  2:18.06 /usr/sbin/ntpd -g -u ntp:ntp
 8509 root       20   0 1264M 40588  1060 S  0.0  0.1  0:00.35 /usr/local/sbin/shfs /mnt/user -disks 511 204
10756 root       20   0 1264M 40588  1060 S  0.0  0.1  0:00.28 /usr/local/sbin/shfs /mnt/user -disks 511 204
 1967 root       20   0  8212  4436  1308 S  0.0  0.0  8:37.61 /sbin/haveged -w 1024 -v 1 -p /var/run/havege
    1 root       20   0  2468  1840  1736 S  0.0  0.0  0:31.52 init
24860 root       20   0  5680  2228     0 S  0.0  0.0  0:00.00 /usr/sbin/rpc.mountd
24765 root       20   0  2524  1684  1580 S  0.0  0.0  0:00.00 /usr/sbin/inetd
24685 root       20   0  8988  3348  2840 S  0.0  0.0  0:00.00 /usr/sbin/sshd
15905 root       20   0  7344  4176  3264 S  0.0  0.0  0:00.05 -bash
13671 root       20   0  3848  2108  1776 S  0.0  0.0  0:03.70 /bin/bash /usr/local/emhttp/plugins/dynamix.s
13274 root       20   0  2448   756   696 S  0.0  0.0  0:00.00 sleep 300
12065 root       20   0 50600 10760  8088 S  0.0  0.0  0:00.00 /usr/sbin/winbindd -D
12267 root       20   0 51016  9472  6816 S  0.0  0.0  0:00.00 /usr/sbin/winbindd -D
12068 root       20   0 50968 15896 13312 S  0.0  0.0  0:00.00 /usr/sbin/winbindd -D
12062 root       20   0  2512   104     0 S  0.0  0.0  0:00.00 /usr/sbin/wsdd
12055 root       20   0 35340  6540  4380 S  0.0  0.0  0:00.01 /usr/sbin/nmbd -D
12050 root       20   0 59900 17552 14712 S  0.0  0.1  0:00.00 /usr/sbin/smbd -D
12054 root       20   0 50340  7284  4568 S  0.0  0.0  0:00.00 /usr/sbin/smbd -D
12053 root       20   0 50332  8140  5424 S  0.0  0.0  0:00.00 /usr/sbin/smbd -D
 7489 root       20   0  145M  3812    28 S  0.0  0.0  0:00.00 nginx: master process /usr/sbin/nginx -c /etc
 7483 root       20   0 13492  5132  3952 S  0.0  0.0  1:25.22 ttyd -d 0 -i /var/run/ttyd.sock login -f root
 7447 root       20   0   99M 11800  6232 S  0.0  0.0  1:31.38 php-fpm: master process (/etc/php-fpm/php-fpm
11706 root       20   0  102M 13288  7432 S  0.0  0.0  0:00.05 php-fpm: pool www
13828 root       20   0 17296 14732  4104 D  0.0  0.0  0:00.24 lshw -xml -sanitize -quiet
 6008 root       20   0  141M   744   280 S  0.0  0.0  0:02.62 /usr/local/sbin/shfs /mnt/user0 -disks 510 -o
 6010 root       20   0  141M   744   280 S  0.0  0.0  0:01.30 /usr/local/sbin/shfs /mnt/user0 -disks 510 -o
 6009 root       20   0  141M   744   280 S  0.0  0.0  0:01.31 /usr/local/sbin/shfs /mnt/user0 -disks 510 -o
 5715 root       20   0  4716   108     0 S  0.0  0.0  0:00.00 /usr/sbin/avahi-dnsconfd -D
 5704 avahi      20   0  6420  3288  2848 S  0.0  0.0  1:11.14 avahi-daemon: running [VDS.local]
 5706 avahi      20   0  6024   264     0 S  0.0  0.0  0:00.00 avahi-daemon: chroot helper
 5733 root       20   0  276M  4124  3352 S  0.0  0.0  0:00.00 /usr/local/sbin/emhttpd
F1Help  F2Setup F3SearchF4FilterF5Tree  F6SortByF7Nice -F8Nice +F9Kill  F10Quit

So, nothing use my CPU.. and now Im confused... my cpu was used or not?                                                                                                                                

 

When I reboot my server I see normal CPU usage ~3% at dashboard.

 

server-diagnostics-20200525-0138(anony).zip

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