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  1. #1
    Join Date
    Aug 2004
    Posts
    167

    Load Average of > 1.00, VPS host says this is normal but i dont see any process use

    Hi, my VPS load average is over 1.00, sometimes at 2+, VPS host says this is normal but i dont see any process use or where this resource is being consumed by running top - all processor use is 0%.

    Any ideas? Is my understanding wrong? I thought anything over 1 is 100% and not good?

    Thanks,

    Chris

    Code:
    top - 13:42:45 up 10 min,  1 user,  load average: 1.27, 1.20, 0.65
    Tasks:  60 total,   1 running,  59 sleeping,   0 stopped,   0 zombie
    Cpu(s):  0.0%us,  0.1%sy,  0.0%ni, 99.9%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
    Mem:   4194304k total,   297980k used,  3896324k free,        0k buffers
    Swap:        0k total,        0k used,        0k free,        0k cached
    
      PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
     3838 zabbix    34  19 13840 1000  796 S  0.3  0.0   0:00.25 zabbix_agentd
        1 root      34  19 10348  744  620 S  0.0  0.0   0:04.06 init
     1747 root      34  19 62624 1208  648 S  0.0  0.0   0:00.00 sshd
     1931 root      34  19 39340 1740 1212 S  0.0  0.0   0:00.01 pure-ftpd
     1939 mailnull  34  19 64272 1360  680 S  0.0  0.0   0:00.00 exim
     1992 root      34  19 37016 1600 1248 S  0.0  0.0   0:00.00 pure-authd
     3082 root      37  19 12192 1700 1192 S  0.0  0.0   0:00.00 named
     3716 nobody    34  19 78808 5196 1852 S  0.0  0.1   0:00.00 httpd
     3805 zabbix    39  19 11748  572  428 S  0.0  0.0   0:00.00 zabbix_agentd
     3820 zabbix    34  19 11748  828  684 S  0.0  0.0   0:00.00 zabbix_agentd
     3832 zabbix    34  19 13840  988  792 S  0.0  0.0   0:00.27 zabbix_agentd
     3843 zabbix    34  19 13840  988  792 S  0.0  0.0   0:00.29 zabbix_agentd
     3849 zabbix    34  19 13828  832  644 S  0.0  0.0   0:00.00 zabbix_agentd
     5250 nobody    34  19 78672 4896 1628 S  0.0  0.1   0:00.00 httpd
     5323 root      34  19 86452  11m 1468 S  0.0  0.3   0:00.01 cpsrvd-ssl
     5484 root      35  19 39344  808  272 S  0.0  0.0   0:00.00 pure-ftpd
     5660 root      34  19 20872 1192  588 S  0.0  0.0   0:00.00 crond
     5984 root      34  19 47580 8220 2284 S  0.0  0.2   0:00.07 leechprotect
     6060 nobody    34  19 78804 5100 1736 S  0.0  0.1   0:00.00 httpd
     6106 nobody    34  19 78808 5108 1752 S  0.0  0.1   0:00.02 httpd
     7265 root      34  19 21644  924  708 S  0.0  0.0   0:00.00 xinetd
     7446 root      12  -4 12604  680  360 S  0.0  0.0   0:00.00 udevd
     7626 root      34  19 11928 1420 1180 S  0.0  0.0   0:00.00 mysqld_safe
     7782 nobody    34  19 78672 4992 1712 S  0.0  0.1   0:00.00 httpd
     7950 root      34  19 90128 3384 2644 S  0.0  0.1   0:00.08 sshd
     9272 root      38  19 11924 1316 1124 S  0.0  0.0   0:00.00 bash
     9316 named     35  19 56320 2200 1716 S  0.0  0.1   0:00.00 named
     9614 root      34  19 37408 6428 1372 S  0.0  0.2   0:00.02 queueprocd
     9633 root      36  19 39344  808  272 S  0.0  0.0   0:00.00 pure-ftpd
     9635 mysql     34  19  204m  28m 5144 S  0.0  0.7   0:01.38 mysqld
    10045 named     34  19  181m 4872 1840 S  0.0  0.1   0:00.01 named
    11384 root      35  19 39344 1020  480 S  0.0  0.0   0:00.00 pure-ftpd
    13547 wwwwill   34  19 39496 1364  768 S  0.0  0.0   0:00.01 pure-ftpd
    13591 root      34  19 12716 1244  928 R  0.0  0.0   0:00.22 top
    13605 root      34  19 43084 7720 2096 S  0.0  0.2   0:00.04 tailwatchd
    13646 root      34  19 23428 2068  628 S  0.0  0.0   0:00.00 cpanellogd
    17488 root      34  19 12400  752  548 S  0.0  0.0   0:00.00 dovecot
    17500 root      34  19 19044 1152  900 S  0.0  0.0   0:00.00 dovecot-auth
    18020 root      34  19 46736  812  420 S  0.0  0.0   0:00.00 saslauthd
    18398 root      34  19 46736  552  160 S  0.0  0.0   0:00.00 saslauthd

  2. #2
    Join Date
    Aug 2004
    Posts
    167
    Also other info that might help:

    The guest is CENTOS 5.5 x86_64 virtuozzo, it has 2GB RAM with upto 4GB burst.

    Code:
    [email protected] [~]# vmstat 5
    procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu------
    r  b   swpd   free   buff  cache   si   so    bi    bo   in   cs us sy id wa st
    1  0      0 3894392      0      0    0    0     0     4    0    2  1  0 98  1  0
    1  0      0 3892160      0      0    0    0     0     5    0 18367  0  0 100  0  0
    0  0      0 3892160      0      0    0    0     0     2    0 16731  0  0 100  0  0
    0  0      0 3892160      0      0    0    0     0     1    0 13518  0  0 100  0  0
    1  0      0 3893524      0      0    0    0     0     3    0 16655  0  0 99  0  0
    0  0      0 3893052      0      0    0    0     2     6    0 16822  2  0 98  0  0
    0  0      0 3893052      0      0    0    0     0    10    0 16439  0  0 100  0  0
    1  0      0 3892908      0      0    0    0     1    16    0 14211  2  0 98  0  0
    0  0      0 3892396      0      0    0    0     0     3    0 15875  0  0 100  0  0
    0  0      0 3892396      0      0    0    0     0     2    0 14928  0  0 100  0  0
    0  0      0 3892396      0      0    0    0     1     2    0 13445  0  0 99  1  0
    0  0      0 3893380      0      0    0    0     0     6    0 13985  0  0 100  0  0
    0  0      0 3892804      0      0    0    0     1     9    0 16582  0  0 100  0  0
    0  0      0 3892804      0      0    0    0     0     5    0 12486  0  0 100  0  0
    
    [email protected] [~]# uptime
    13:26:09 up 14 days, 14:30,  2 users,  load average: 1.01, 1.03, 0.93
    
    
    
    [email protected] [~]# free
                 total       used       free     shared    buffers     cached
    Mem:       4194304     302464    3891840          0          0          0
    -/+ buffers/cache:     302464    3891840
    Swap:            0          0          0
    [email protected] [~]# df -h
    Filesystem            Size  Used Avail Use% Mounted on
    /dev/simfs             64G  6.9G   58G  11% /
    none                  2.0G  4.0K  2.0G   1% /dev

  3. #3
    Join Date
    Jun 2003
    Location
    UK
    Posts
    6,601
    I would think that the host machine is overloaded, most likely in IO Wait. A load of 1 on a busy VPS is fine but on something that is totally idle is wrong
    Russ Foster - Industry Curmudgeon

  4. #4
    Join Date
    Mar 2003
    Location
    WebHostingTalk
    Posts
    16,960
    Quote Originally Posted by rghf View Post
    I would think that the host machine is overloaded, most likely in IO Wait. A load of 1 on a busy VPS is fine but on something that is totally idle is wrong
    Even if it is overloaded, he won't see the high load in his VPS.

    In his case, he is seeing over 1.0 in his own VPS.

    OP: You should check the processes carefully. There might be some process doing this high load.
    Specially 4 You
    .
    JoneSolutions.Com ( Jones.Solutions ) is on the net 24/7 providing stable and reliable web hosting solutions and services since 2001

  5. #5
    Join Date
    Aug 2004
    Posts
    167
    I am not an expert on VPS's but all i know is that I/O can cause high CPU load... without seeing any process whilst running top and ps -aux i dont know what else would cause this. I just checked the zabbix box, loads on this node have gone from nominal 0.1 to 0.5 for the past week to over 1.0 to 2.0 since 12:30 today.

  6. #6
    Join Date
    Jan 2010
    Location
    San Francisco
    Posts
    1,799
    Quote Originally Posted by net View Post
    Even if it is overloaded, he won't see the high load in his VPS.

    In his case, he is seeing over 1.0 in his own VPS.

    OP: You should check the processes carefully. There might be some process doing this high load.
    An overloaded node or abusive neighbors can definitely affect your VPS and cause you to see higher than usual load.

    I've been with truly budget providers and even on a fresh empty OS, the load was hovering at ~1.5 for several days.

  7. #7
    Join Date
    Aug 2004
    Posts
    167
    I had a reply and no light has been shed on the issue... would you find this response below acceptable?

    "Load can vary according to the traffic towards your server as well the way you configured your server to make the proper usage of resources by the services. And this difference can make you to access server slowly sometimes.

    Regarding Zabbix graphs, it really depends upon the way you configured it to use."

    Thanks for the replies guys

  8. #8
    Join Date
    Jul 2008
    Posts
    457
    I have a very powerful node w/ over 80 VEs on it and any time I see anyone pushing a load of greater than 1 for more than 15 minutes I get an alert and go looking for the abuser.

    I've seen all kinds of fun stuff cause this - VPN / Proxy TV watching, folding @ home, game server hosting - we don't put up w/ it. Anyone pushing high loads on a shared resource is asked to stop if the activity is a TOS violation and if they continue we take steps to solve the issue ourselves.

    Sounds like an overloaded host or a host who doesn't care / know how to admin a VPS system.

  9. #9
    Join Date
    Mar 2002
    Location
    Philadelphia, PA
    Posts
    2,508
    Pull a full list of the processes with CPU/MEM usage.

    ps aux | awk '{print $3,$4,$11}'
    Linux junkie | steward.io

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