3

I have following problem with debian 7 (LAMP stack):

top - 12:16:08 up 16:36,  4 users,  load average: 27.97, 27.66, 27.42
Tasks: 240 total,   2 running, 238 sleeping,   0 stopped,   0 zombie
%Cpu(s):  8.5 us,  3.3 sy, 86.8 ni,  1.0 id,  0.0 wa,  0.0 hi,  0.4 si,  0.0 st
KiB Mem:  32980448 total, 32278828 used,   701620 free,   264368 buffers
KiB Swap: 11882492 total,        0 used, 11882492 free, 29265456 cached

So load average ~24 is always, even if all services (http,postfix,bind) are down (and also network is completely blocked with iptables). It near 100% nice load and ~27 la, but running processes are only 3-5. Web site works, but there is now idle at all.

Any ideas what can it be? How cat I determine which processes are running "niced"?

BTW server has 12 cores and total is is 24 threads... Is it possible that it is bug and each core is "hanging"

UPDATE Process list:

top - 12:29:46 up 16:49,  3 users,  load average: 27.55, 27.30, 27.35
Tasks: 234 total,   4 running, 229 sleeping,   0 stopped,   1 zombie
%Cpu(s): 10.1 us,  4.2 sy, 84.5 ni,  0.7 id,  0.0 wa,  0.0 hi,  0.4 si,  0.0 st
KiB Mem:  32980448 total, 32363708 used,   616740 free,   266392 buffers
KiB Swap: 11882492 total,        0 used, 11882492 free, 29357760 cached

  PID USER      PR  NI  VIRT  RES  SHR S  %CPU %MEM    TIME+  COMMAND
17760 mysql     20   0 2278m 972m 8544 S    71  3.0 330:59.07 mysqld
31139 www-data  20   0 81896 4524 2076 S     4  0.0   4:27.55 nginx
31140 www-data  20   0 81776 3256 1064 R     3  0.0   4:23.99 nginx
52110 web12543  20   0  240m  14m 3328 R     3  0.0   0:00.09 apache2
33669 root      20   0  236m 7484  580 S     1  0.0   0:01.18 apache2
40600 root      20   0  236m 7484  580 S     1  0.0   0:00.76 apache2
43386 root      20   0  236m 7484  580 S     1  0.0   0:00.57 apache2
43645 root      20   0  236m 7480  576 S     1  0.0   0:00.54 apache2
44197 root      20   0  236m 7484  580 S     1  0.0   0:00.49 apache2
46111 root      20   0  236m 7480  576 S     1  0.0   0:00.38 apache2
47041 root      20   0  236m 7480  576 S     1  0.0   0:00.33 apache2
47644 root      20   0  236m 7480  576 S     1  0.0   0:00.28 apache2
48683 root      20   0     0    0    0 Z     1  0.0   0:00.23 apache2
48765 root      20   0  236m 7480  576 S     1  0.0   0:00.23 apache2
49749 root      20   0  236m 7480  576 S     1  0.0   0:00.14 apache2
49833 root      20   0  236m 7480  576 S     1  0.0   0:00.14 apache2
49931 root      20   0  236m 7480  576 S     1  0.0   0:00.13 apache2
49935 root      20   0  236m 7480  576 R     1  0.0   0:00.12 apache2
50691 root      20   0  236m 7480  576 S     1  0.0   0:00.09 apache2
50692 root      20   0  236m 7480  576 S     1  0.0   0:00.08 apache2
50786 root      20   0  236m 7480  576 S     1  0.0   0:00.08 apache2
50787 root      20   0  236m 7484  580 S     1  0.0   0:00.07 apache2
51487 root      20   0  236m 7480  576 S     1  0.0   0:00.04 apache2
51588 root      20   0 25320 1584 1080 R     1  0.0   0:00.05 top
31138 www-data  20   0 81824 3436 1064 S     0  0.0   4:18.99 nginx
45688 root      20   0  236m 7480  576 S     0  0.0   0:00.42 apache2
46535 root      20   0  236m 7480  576 S     0  0.0   0:00.35 apache2
46869 root      20   0  236m 7480  576 S     0  0.0   0:00.34 apache2
49933 root      20   0  236m 7480  576 S     0  0.0   0:00.12 apache2
49934 root      20   0  236m 7480  576 S     0  0.0   0:00.12 apache2
51311 root      20   0  236m 7480  576 S     0  0.0   0:00.03 apache2
52085 web12543  20   0  237m  11m 3272 S     0  0.0   0:00.01 apache2
62551 root      20   0 25492 1864 1192 S     0  0.0   0:07.21 top
    1 root      20   0 12708  844  704 S     0  0.0   0:04.20 init
    2 root      20   0     0    0    0 S     0  0.0   0:00.00 kthreadd
    3 root      20   0     0    0    0 S     0  0.0   0:00.92 ksoftirqd/0
    5 root      20   0     0    0    0 S     0  0.0   0:00.00 kworker/u:0
    6 root      rt   0     0    0    0 S     0  0.0   0:00.38 migration/0
    7 root      rt   0     0    0    0 S     0  0.0   0:00.30 watchdog/0
    8 root      rt   0     0    0    0 S     0  0.0   0:00.20 migration/1
    9 root      20   0     0    0    0 S     0  0.0   0:00.00 kworker/1:0
   10 root      20   0     0    0    0 S     0  0.0   0:00.26 ksoftirqd/1
   12 root      rt   0     0    0    0 S     0  0.0   0:00.21 watchdog/1
   13 root      rt   0     0    0    0 S     0  0.0   0:00.19 migration/2
   14 root      20   0     0    0    0 S     0  0.0   0:00.00 kworker/2:0
   15 root      20   0     0    0    0 S     0  0.0   0:00.24 ksoftirqd/2
   16 root      rt   0     0    0    0 S     0  0.0   0:00.16 watchdog/2
   17 root      rt   0     0    0    0 S     0  0.0   0:00.14 migration/3
   18 root      20   0     0    0    0 S     0  0.0   0:00.00 kworker/3:0
   19 root      20   0     0    0    0 S     0  0.0   0:00.18 ksoftirqd/3
   20 root      rt   0     0    0    0 S     0  0.0   0:00.13 watchdog/3
   21 root      rt   0     0    0    0 S     0  0.0   0:00.14 migration/4
   23 root      20   0     0    0    0 S     0  0.0   0:00.22 ksoftirqd/4
   24 root      rt   0     0    0    0 S     0  0.0   0:00.13 watchdog/4
   25 root      rt   0     0    0    0 S     0  0.0   0:00.14 migration/5
   26 root      20   0     0    0    0 S     0  0.0   0:00.00 kworker/5:0
   27 root      20   0     0    0    0 S     0  0.0   0:00.25 ksoftirqd/5
   28 root      rt   0     0    0    0 S     0  0.0   0:00.12 watchdog/5
   29 root      rt   0     0    0    0 S     0  0.0   0:00.32 migration/6
   31 root      20   0     0    0    0 S     0  0.0   0:00.79 ksoftirqd/6
   32 root      rt   0     0    0    0 S     0  0.0   0:00.15 watchdog/6
   33 root      rt   0     0    0    0 S     0  0.0   0:00.27 migration/7
   34 root      20   0     0    0    0 S     0  0.0   0:00.00 kworker/7:0
   35 root      20   0     0    0    0 S     0  0.0   0:00.28 ksoftirqd/7
   36 root      rt   0     0    0    0 S     0  0.0   0:00.15 watchdog/7
   37 root      rt   0     0    0    0 S     0  0.0   0:00.19 migration/8
   39 root      20   0     0    0    0 S     0  0.0   0:00.25 ksoftirqd/8
   40 root      rt   0     0    0    0 S     0  0.0   0:00.16 watchdog/8
   41 root      rt   0     0    0    0 S     0  0.0   0:00.18 migration/9
   43 root      20   0     0    0    0 S     0  0.0   0:00.28 ksoftirqd/9
   44 root      rt   0     0    0    0 S     0  0.0   0:00.16 watchdog/9
   45 root      rt   0     0    0    0 S     0  0.0   0:00.19 migration/10
   46 root      20   0     0    0    0 S     0  0.0   0:00.00 kworker/10:0
   47 root      20   0     0    0    0 S     0  0.0   0:00.21 ksoftirqd/10
   48 root      rt   0     0    0    0 S     0  0.0   0:00.16 watchdog/10
   49 root      rt   0     0    0    0 S     0  0.0   0:00.16 migration/11
   50 root      20   0     0    0    0 S     0  0.0   0:00.00 kworker/11:0
   51 root      20   0     0    0    0 S     0  0.0   0:00.18 ksoftirqd/11
   52 root      rt   0     0    0    0 S     0  0.0   0:00.16 watchdog/11
   53 root      rt   0     0    0    0 S     0  0.0   0:00.44 migration/12
   54 root      20   0     0    0    0 S     0  0.0   0:00.00 kworker/12:0
   55 root      20   0     0    0    0 S     0  0.0   0:00.10 ksoftirqd/12
   56 root      rt   0     0    0    0 S     0  0.0   0:00.12 watchdog/12
   57 root      rt   0     0    0    0 S     0  0.0   0:00.35 migration/13
   59 root      20   0     0    0    0 S     0  0.0   0:00.08 ksoftirqd/13
   60 root      rt   0     0    0    0 S     0  0.0   0:00.12 watchdog/13
   61 root      rt   0     0    0    0 S     0  0.0   0:00.28 migration/14
   62 root      20   0     0    0    0 S     0  0.0   0:00.00 kworker/14:0
   63 root      20   0     0    0    0 S     0  0.0   0:00.10 ksoftirqd/14
   64 root      rt   0     0    0    0 S     0  0.0   0:00.11 watchdog/14
   65 root      rt   0     0    0    0 S     0  0.0   0:00.24 migration/15
   66 root      20   0     0    0    0 S     0  0.0   0:00.00 kworker/15:0
   67 root      20   0     0    0    0 S     0  0.0   0:00.05 ksoftirqd/15
   68 root      rt   0     0    0    0 S     0  0.0   0:00.11 watchdog/15
   69 root      rt   0     0    0    0 S     0  0.0   0:00.23 migration/16
   70 root      20   0     0    0    0 S     0  0.0   0:00.00 kworker/16:0
   71 root      20   0     0    0    0 S     0  0.0   0:00.07 ksoftirqd/16
   72 root      rt   0     0    0    0 S     0  0.0   0:00.11 watchdog/16
   73 root      rt   0     0    0    0 S     0  0.0   0:00.21 migration/17
   74 root      20   0     0    0    0 S     0  0.0   0:00.00 kworker/17:0
   75 root      20   0     0    0    0 S     0  0.0   0:00.11 ksoftirqd/17
   76 root      20   0     0    0    0 S     0  0.0   0:04.63 kworker/8:1
   79 root      20   0     0    0    0 S     0  0.0   0:04.42 kworker/5:1
   80 root      20   0     0    0    0 S     0  0.0   0:04.36 kworker/4:1
   81 root      20   0     0    0    0 S     0  0.0   0:04.20 kworker/3:1
   82 root      20   0     0    0    0 S     0  0.0   0:04.33 kworker/2:1
   83 root      rt   0     0    0    0 S     0  0.0   0:00.12 watchdog/17
   84 root      rt   0     0    0    0 S     0  0.0   0:00.53 migration/18
   85 root      20   0     0    0    0 S     0  0.0   0:00.00 kworker/18:0
   86 root      20   0     0    0    0 S     0  0.0   0:00.06 ksoftirqd/18
   87 root      20   0     0    0    0 S     0  0.0   0:06.01 kworker/1:1
   88 root      rt   0     0    0    0 S     0  0.0   0:00.14 watchdog/18
   89 root      rt   0     0    0    0 S     0  0.0   0:00.41 migration/19
   91 root      20   0     0    0    0 S     0  0.0   0:00.08 ksoftirqd/19
   92 root      rt   0     0    0    0 S     0  0.0   0:00.17 watchdog/19
   93 root      rt   0     0    0    0 S     0  0.0   0:00.34 migration/20
   94 root      20   0     0    0    0 S     0  0.0   0:00.00 kworker/20:0
   95 root      20   0     0    0    0 S     0  0.0   0:00.06 ksoftirqd/20
   96 root      rt   0     0    0    0 S     0  0.0   0:00.14 watchdog/20
   97 root      rt   0     0    0    0 S     0  0.0   0:00.30 migration/21
   98 root      20   0     0    0    0 S     0  0.0   0:00.00 kworker/21:0
   99 root      20   0     0    0    0 S     0  0.0   0:00.12 ksoftirqd/21
  100 root      rt   0     0    0    0 S     0  0.0   0:00.14 watchdog/21
  101 root      rt   0     0    0    0 S     0  0.0   0:00.28 migration/22
  102 root      20   0     0    0    0 S     0  0.0   0:00.00 kworker/22:0
  103 root      20   0     0    0    0 S     0  0.0   0:00.06 ksoftirqd/22
  104 root      rt   0     0    0    0 S     0  0.0   0:00.14 watchdog/22
  105 root      rt   0     0    0    0 S     0  0.0   0:00.26 migration/23
  106 root      20   0     0    0    0 S     0  0.0   0:00.00 kworker/23:0
  107 root      20   0     0    0    0 S     0  0.0   0:00.07 ksoftirqd/23
  108 root      rt   0     0    0    0 S     0  0.0   0:00.14 watchdog/23
  109 root       0 -20     0    0    0 S     0  0.0   0:00.00 cpuset
  110 root       0 -20     0    0    0 S     0  0.0   0:00.00 khelper
  111 root      20   0     0    0    0 S     0  0.0   0:00.00 kdevtmpfs
  112 root       0 -20     0    0    0 S     0  0.0   0:00.00 netns
  113 root      20   0     0    0    0 S     0  0.0   0:00.14 sync_supers
  114 root      20   0     0    0    0 S     0  0.0   0:00.00 bdi-default
  115 root       0 -20     0    0    0 S     0  0.0   0:00.00 kintegrityd
  116 root       0 -20     0    0    0 S     0  0.0   0:00.00 kblockd
  117 root      20   0     0    0    0 S     0  0.0   0:00.06 khungtaskd
  118 root      20   0     0    0    0 S     0  0.0   0:06.12 kswapd0
  119 root      20   0     0    0    0 S     0  0.0   0:04.55 kswapd1
  120 root      25   5     0    0    0 S     0  0.0   0:00.00 ksmd
  121 root      39  19     0    0    0 S     0  0.0   0:00.00 khugepaged
  122 root      20   0     0    0    0 S     0  0.0   0:00.00 fsnotify_mark
  123 root       0 -20     0    0    0 S     0  0.0   0:00.00 crypto
  126 root      20   0     0    0    0 S     0  0.0   0:04.37 kworker/15:1
  129 root      20   0     0    0    0 S     0  0.0   0:04.41 kworker/13:1
  145 root      20   0     0    0    0 S     0  0.0   0:04.76 kworker/9:1
  190 root      20   0     0    0    0 S     0  0.0   0:04.60 kworker/12:1
  191 root      20   0     0    0    0 S     0  0.0   0:04.40 kworker/17:1
  192 root      20   0     0    0    0 S     0  0.0   0:04.19 kworker/16:1
  193 root      20   0     0    0    0 S     0  0.0   0:04.84 kworker/11:1
  194 root      20   0     0    0    0 S     0  0.0   0:04.80 kworker/10:1
  376 root       0 -20     0    0    0 S     0  0.0   0:00.00 ata_sff
  377 root      20   0     0    0    0 S     0  0.0   0:00.00 khubd
  461 root      20   0     0    0    0 S     0  0.0   0:00.00 scsi_eh_0
  463 root      20   0     0    0    0 S     0  0.0   0:00.02 hpsa
  467 root      20   0     0    0    0 S     0  0.0   0:00.97 kworker/u:1
  476 root      20   0     0    0    0 S     0  0.0   0:00.00 scsi_eh_1
  477 root      20   0     0    0    0 S     0  0.0   0:00.00 scsi_eh_2
  480 root      20   0     0    0    0 S     0  0.0   0:04.88 kworker/23:1
  481 root      20   0     0    0    0 S     0  0.0   0:04.76 kworker/19:1
  484 root      20   0     0    0    0 S     0  0.0   0:04.81 kworker/18:1
  486 root      20   0     0    0    0 S     0  0.0   0:04.75 kworker/20:1
  489 root      20   0     0    0    0 S     0  0.0   0:04.75 kworker/22:1
  497 root      20   0     0    0    0 S     0  0.0   0:00.00 kworker/19:2
  507 root      20   0     0    0    0 S     0  0.0   0:04.85 kworker/21:1
  508 root       0 -20     0    0    0 S     0  0.0   0:00.00 kdmflush
  517 root       0 -20     0    0    0 S     0  0.0   0:00.00 kdmflush
  524 root      20   0     0    0    0 S     0  0.0   0:04.36 kworker/14:2
  533 root      20   0     0    0    0 S     0  0.0   0:29.16 jbd2/dm-0-8
  534 root       0 -20     0    0    0 S     0  0.0   0:00.00 ext4-dio-unwrit
  675 root      20   0 23772 1692  816 S     0  0.0   0:00.16 udevd
 1008 root      20   0     0    0    0 S     0  0.0   0:00.00 kworker/4:2
 1075 root       0 -20     0    0    0 S     0  0.0   0:00.00 edac-poller
 1080 root      20   0     0    0    0 S     0  0.0   0:00.00 kworker/8:2
 1081 root      20   0     0    0    0 S     0  0.0   0:00.00 kworker/9:2
 1099 root       0 -20     0    0    0 S     0  0.0   0:00.00 kpsmoused
 2291 root      20   0     0    0    0 S     0  0.0   0:00.00 kworker/13:2
 2637 root      20   0     0    0    0 S     0  0.0   0:44.75 flush-254:0
 2730 root      20   0  118m 2348 1152 S     0  0.0   0:05.10 rsyslogd
 2782 daemon    20   0 18736  368  208 S     0  0.0   0:00.00 atd
 2851 root      20   0  8240  684  528 S     0  0.0   0:00.01 acpid
 2878 messageb  20   0 31864  488  220 S     0  0.0   0:00.00 dbus-daemon
 2923 root      20   0 51992 1308  688 S     0  0.0   0:00.00 sshd
 3557 root      20   0 22468 1112  832 S     0  0.0   0:00.67 cron
 3627 root      20   0 23584 1004  676 S     0  0.0   0:00.27 dovecot
 3782 dovecot   20   0 15244 1068  884 S     0  0.0   0:00.10 anvil
 3783 root      20   0 15240 1248  904 S     0  0.0   0:00.06 log
 3830 root      20   0 53648 9912 2120 S     0  0.0   0:04.89 munin-node
 4399 root      20   0 39248 2628 1860 S     0  0.0   0:00.22 ihttpd
 4450 root      20   0 54220 1568 1164 S     0  0.0   0:00.02 login
 4451 root      20   0 20384  992  816 S     0  0.0   0:00.00 getty
 4452 root      20   0 20384  988  816 S     0  0.0   0:00.00 getty
 4453 root      20   0 20384  988  816 S     0  0.0   0:00.00 getty
 4454 root      20   0 20384  992  816 S     0  0.0   0:00.00 getty
 4455 root      20   0 20384  988  816 S     0  0.0   0:00.00 getty
 5721 web12542  20   0  237m 9860 2368 S     0  0.0   0:00.00 apache2
 5724 mysql     20   0 2011m 649m  256 S     0  2.0   0:00.00 mysqld
17427 root      20   0  8304  776  628 S     0  0.0   0:00.02 mysqld_safe
23825 postfix   20   0 42008 2476 1904 S     0  0.0   0:00.01 pickup
28501 root      20   0     0    0    0 S     0  0.0   0:04.18 kworker/0:0
28689 root      20   0 23348 1080  552 S     0  0.0   0:00.00 udevd
31059 root      20   0 39944 2520 1944 S     0  0.0   0:00.75 master
31073 postfix   20   0 42592 3188 2032 S     0  0.0   0:00.94 qmgr
31093 root      20   0  236m  12m 5952 S     0  0.0   0:14.22 apache2
31137 root      20   0 81476 1836  336 S     0  0.0   0:00.00 nginx
31141 www-data  20   0 81900 3512 1064 S     0  0.0   3:47.78 nginx
31878 root      20   0     0    0    0 S     0  0.0   0:05.02 kworker/0:1
32472 postfix   20   0 42008 2364 1824 S     0  0.0   0:00.00 anvil
35437 postfix   20   0 45116 3864 2508 S     0  0.0   0:00.49 tlsmgr
35880 root      20   0  206m  12m 8804 S     0  0.0   0:09.27 ispmgr
37067 postfix   20   0 46828 4368 3316 S     0  0.0   0:00.01 smtp
44298 postfix   20   0 66532 5152 3496 S     0  0.0   0:00.01 smtpd
48002 postfix   20   0 42004 2368 1828 S     0  0.0   0:00.00 error
48004 postfix   20   0 42040 2380 1840 S     0  0.0   0:00.00 bounce
48972 root      20   0  236m 7480  576 S     0  0.0   0:00.12 apache2
48975 root      20   0 74876 5152 2940 S     0  0.0   0:00.82 sshd
49288 root      20   0     0    0    0 S     0  0.0   0:04.01 kworker/7:1
49471 root      20   0 21636 2384 1724 S     0  0.0   0:00.31 bash
50882 web12542  20   0  242m  16m 3140 S     0  0.1   0:06.45 apache2
51111 bind      20   0  332m  55m 2352 S     0  0.2   0:04.50 named
52083 web12543  20   0  236m 9228 2004 S     0  0.0   0:00.00 apache2
52114 root      20   0     0    0    0 S     0  0.0   0:00.15 kworker/6:2
54542 root      20   0  236m 7480  576 S     0  0.0   0:00.10 apache2
55209 postfix   20   0 42020 2388 1844 S     0  0.0   0:00.02 trivial-rewrite
56098 postfix   20   0 42340 3180 2352 S     0  0.0   0:00.03 cleanup
56171 web12542  20   0  240m  14m 3300 S     0  0.0   0:00.08 apache2
56214 root      20   0 23348 1124  584 S     0  0.0   0:00.00 udevd
56218 root      20   0 21560 2248 1648 S     0  0.0   0:00.01 bash
56282 root      20   0 73352 3732 2936 S     0  0.0   0:00.48 sshd
61268 root      20   0 21544 2280 1696 S     0  0.0   0:00.04 bash
63955 root      20   0     0    0    0 S     0  0.0   0:01.36 kworker/6:0

UPDATE2 Now after 2 days load average shows 0.00 - always!!!

top - 10:57:06 up 2 days, 15:17,  1 user,  load average: 0.00, 0.00, 0.00
Tasks: 377 total,  10 running, 366 sleeping,   0 stopped,   1 zombie
Cpu(s): 29.1%us, 11.8%sy, 57.9%ni,  0.2%id,  0.0%wa,  0.0%hi,  0.9%si,  0.0%st
Mem:  32980448k total, 31662152k used,  1318296k free,   293472k buffers
Swap: 11882492k total,      744k used, 11881748k free, 25885360k cached

Debian bugs?!

UPDATE3

root@rd1:~# vmstat 1
procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu----
 r  b   swpd   free   buff  cache   si   so    bi    bo   in   cs us sy id wa
40  0   2076 1233156 294124 25595008    0    0    26    35    0    6 94  5  1  0
29  0   2076 1240300 294124 25595200    0    0     0   428 22645 61952 86 14  0  0
28  0   2076 1233792 294124 25595456    0    0    36   364 12324 23591 92  8  0  0
34  0   2076 1251060 294124 25595608    0    0     0   556 13593 33874 91  8  1  0
39  0   2076 1223912 294124 25595752    0    0     0  2332 38084 89618 81 19  0  0
35  0   2076 1205256 294124 25595960    0    0     0   556 25791 62903 81 18  0  0
27  0   2076 1238748 294124 25596768    0    0     0   344 20367 46819 84 16  1  0
35  0   2076 1211688 294124 25597256    0    0    32   484 13068 28677 87 12  1  0
35  0   2076 1216440 294124 25597800    0    0    32   132 26783 75160 81 19  0  0
38  0   2076 1218932 294124 25598188    0    0    64  6952 19746 47230 83 16  0  0
30  0   2076 1244800 294124 25598728    0    0     0     4 16268 35489 87 13  0  0
33  0   2076 1229928 294124 25599048    0    0   184   404 10958 21926 88 11  1  0
30  0   2076 1237536 294124 25599436    0    0    32   592 12408 29603 89 11  0  0
30  1   2076 1234664 294124 25599788    0    0    12   416 13072 31855 88 12  0  0
32  0   2076 1247136 294124 25599924    0    0    12  1928 12717 23503 88 11  1  0
31  0   2076 1236484 294124 25600312    0    0    32  2880 12893 33544 88 12  0  0
  • What processes are running? You forgot to include that part. – Michael Hampton Sep 12 '15 at 9:33
  • Have a look with top or ps. Some of the kernel threads are niced. If you are using an encrypted device, the kernel thread responseble for that whould be my suspect. – Thomas Erker Sep 12 '15 at 9:41
  • Why is there apache and nginx running? – Thomas Erker Sep 12 '15 at 9:44
  • there is no niced procesed (except default ones) ... or I missing something? Nginx is at frontend for css,images etc. Apache - php. And there is no encypted devices... And there are no ~27 Running processes. They are mainly "S" state... Sleeping – user134880 Sep 12 '15 at 9:47
  • Hmm, does vmstat 1 show anything odd happening? I suspected I/O wait, but top doesn't show that. – thrig Sep 12 '15 at 14:59

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