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Thread: 10.04 upgrade: what is this 'events' process eating 60% of my CPU?

  1. #1
    Join Date
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    10.04 upgrade: what is this 'events' process eating 60% of my CPU?

    Just did the 10.04 upgrade. Most things seem to be working but mouse and keyboard input is incredibly sluggish. Running 'top' I see a process called 'events' eating 50-70% CPU constantly. WTF???

    (Lenovo laptop; x86_64 install.)

    Thanks, in advance, for any assistance.
    - John

  2. #2
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    Re: 10.04 upgrade: what is this 'events' process eating 60% of my CPU?

    Can you post the output of "top" or show us a screenshot of htop showing this event?
    Thank you for your contributions. "So long and thanks for the fish!"

  3. #3
    Join Date
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    Re: 10.04 upgrade: what is this 'events' process eating 60% of my CPU?

    Here's a text cut'n'paste of top output:
    (Sorry I'm unable to get the fixed-width formatting.)

    top - 20:18:36 up 9 min, 2 users, load average: 1.13, 1.25, 0.77
    Tasks: 172 total, 1 running, 171 sleeping, 0 stopped, 0 zombie
    Cpu(s): 0.5%us, 33.2%sy, 0.0%ni, 66.3%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
    Mem: 4059216k total, 772704k used, 3286512k free, 19084k buffers
    Swap: 5855684k total, 0k used, 5855684k free, 318440k cached

    PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
    10 root 20 0 0 0 0 S 66 0.0 4:42.50 events/1
    53 root 20 0 0 0 0 S 0 0.0 0:00.17 scsi_eh_0
    1037 root 20 0 131m 13m 6652 S 0 0.3 0:08.38 Xorg
    1837 jga 20 0 207m 13m 10m S 0 0.3 0:00.39 gnome-terminal
    1861 jga 20 0 19216 1448 1052 R 0 0.0 0:00.07 top
    1 root 20 0 23680 1964 1272 S 0 0.0 0:00.45 init
    2 root 20 0 0 0 0 S 0 0.0 0:00.00 kthreadd
    3 root RT 0 0 0 0 S 0 0.0 0:00.00 migration/0
    4 root 20 0 0 0 0 S 0 0.0 0:00.00 ksoftirqd/0
    5 root RT 0 0 0 0 S 0 0.0 0:00.00 watchdog/0
    6 root RT 0 0 0 0 S 0 0.0 0:00.00 migration/1
    7 root 20 0 0 0 0 S 0 0.0 0:00.03 ksoftirqd/1
    8 root RT 0 0 0 0 S 0 0.0 0:00.00 watchdog/1
    9 root 20 0 0 0 0 S 0 0.0 0:00.02 events/0
    11 root 20 0 0 0 0 S 0 0.0 0:00.00 cpuset
    12 root 20 0 0 0 0 S 0 0.0 0:00.00 khelper
    13 root 20 0 0 0 0 S 0 0.0 0:00.00 netns
    14 root 20 0 0 0 0 S 0 0.0 0:00.00 async/mgr
    15 root 20 0 0 0 0 S 0 0.0 0:00.00 pm
    17 root 20 0 0 0 0 S 0 0.0 0:00.00 sync_supers
    18 root 20 0 0 0 0 S 0 0.0 0:00.00 bdi-default
    19 root 20 0 0 0 0 S 0 0.0 0:00.00 kintegrityd/0
    20 root 20 0 0 0 0 S 0 0.0 0:00.00 kintegrityd/1
    21 root 20 0 0 0 0 S 0 0.0 0:00.01 kblockd/0
    22 root 20 0 0 0 0 S 0 0.0 0:00.01 kblockd/1
    23 root 20 0 0 0 0 S 0 0.0 0:00.00 kacpid
    24 root 20 0 0 0 0 S 0 0.0 0:00.00 kacpi_notify
    25 root 20 0 0 0 0 S 0 0.0 0:00.00 kacpi_hotplug
    26 root 20 0 0 0 0 S 0 0.0 0:00.09 ata/0
    27 root 20 0 0 0 0 S 0 0.0 0:00.00 ata/1
    28 root 20 0 0 0 0 S 0 0.0 0:00.00 ata_aux
    29 root 20 0 0 0 0 S 0 0.0 0:00.00 ksuspend_usbd
    30 root 20 0 0 0 0 S 0 0.0 0:00.00 khubd
    31 root 20 0 0 0 0 S 0 0.0 0:00.02 kseriod
    32 root 20 0 0 0 0 S 0 0.0 0:00.00 kmmcd
    35 root 20 0 0 0 0 S 0 0.0 0:00.00 khungtaskd
    36 root 20 0 0 0 0 S 0 0.0 0:00.00 kswapd0
    37 root 25 5 0 0 0 S 0 0.0 0:00.00 ksmd
    38 root 20 0 0 0 0 S 0 0.0 0:00.00 aio/0
    39 root 20 0 0 0 0 S 0 0.0 0:00.00 aio/1
    40 root 20 0 0 0 0 S 0 0.0 0:00.00 ecryptfs-kthrea
    Last edited by JohnAspinall; May 16th, 2010 at 01:26 AM. Reason: try to fix fixed-width formatting

  4. #4
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    Re: 10.04 upgrade: what is this 'events' process eating 60% of my CPU?

    Quote Originally Posted by JohnAspinall View Post
    Here's a text cut'n'paste of top output:
    (Sorry I'm unable to get the fixed-width formatting.)

    Code:
    top - 20:18:36 up 9 min,  2 users,  load average: 1.13, 1.25, 0.77
    Tasks: 172 total,   1 running, 171 sleeping,   0 stopped,   0 zombie
    Cpu(s):  0.5%us, 33.2%sy,  0.0%ni, 66.3%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
    Mem:   4059216k total,   772704k used,  3286512k free,    19084k buffers
    Swap:  5855684k total,        0k used,  5855684k free,   318440k cached
    
      PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND                                                 
       10 root      20   0     0    0    0 S   66  0.0   4:42.50 events/1                                                
       53 root      20   0     0    0    0 S    0  0.0   0:00.17 scsi_eh_0                                               
     1037 root      20   0  131m  13m 6652 S    0  0.3   0:08.38 Xorg                                                    
     1837 jga       20   0  207m  13m  10m S    0  0.3   0:00.39 gnome-terminal                                          
     1861 jga       20   0 19216 1448 1052 R    0  0.0   0:00.07 top                                                     
        1 root      20   0 23680 1964 1272 S    0  0.0   0:00.45 init                                                    
        2 root      20   0     0    0    0 S    0  0.0   0:00.00 kthreadd                                                
        3 root      RT   0     0    0    0 S    0  0.0   0:00.00 migration/0                                             
        4 root      20   0     0    0    0 S    0  0.0   0:00.00 ksoftirqd/0                                             
        5 root      RT   0     0    0    0 S    0  0.0   0:00.00 watchdog/0                                              
        6 root      RT   0     0    0    0 S    0  0.0   0:00.00 migration/1                                             
        7 root      20   0     0    0    0 S    0  0.0   0:00.03 ksoftirqd/1                                             
        8 root      RT   0     0    0    0 S    0  0.0   0:00.00 watchdog/1                                              
        9 root      20   0     0    0    0 S    0  0.0   0:00.02 events/0                                                
       11 root      20   0     0    0    0 S    0  0.0   0:00.00 cpuset                                                  
       12 root      20   0     0    0    0 S    0  0.0   0:00.00 khelper                                                 
       13 root      20   0     0    0    0 S    0  0.0   0:00.00 netns                                                   
       14 root      20   0     0    0    0 S    0  0.0   0:00.00 async/mgr                                               
       15 root      20   0     0    0    0 S    0  0.0   0:00.00 pm                                                      
       17 root      20   0     0    0    0 S    0  0.0   0:00.00 sync_supers                                             
       18 root      20   0     0    0    0 S    0  0.0   0:00.00 bdi-default                                             
       19 root      20   0     0    0    0 S    0  0.0   0:00.00 kintegrityd/0                                           
       20 root      20   0     0    0    0 S    0  0.0   0:00.00 kintegrityd/1                                           
       21 root      20   0     0    0    0 S    0  0.0   0:00.01 kblockd/0                                               
       22 root      20   0     0    0    0 S    0  0.0   0:00.01 kblockd/1                                               
       23 root      20   0     0    0    0 S    0  0.0   0:00.00 kacpid                                                  
       24 root      20   0     0    0    0 S    0  0.0   0:00.00 kacpi_notify                                            
       25 root      20   0     0    0    0 S    0  0.0   0:00.00 kacpi_hotplug                                           
       26 root      20   0     0    0    0 S    0  0.0   0:00.09 ata/0                                                   
       27 root      20   0     0    0    0 S    0  0.0   0:00.00 ata/1                                                   
       28 root      20   0     0    0    0 S    0  0.0   0:00.00 ata_aux                                                 
       29 root      20   0     0    0    0 S    0  0.0   0:00.00 ksuspend_usbd                                           
       30 root      20   0     0    0    0 S    0  0.0   0:00.00 khubd                                                   
       31 root      20   0     0    0    0 S    0  0.0   0:00.02 kseriod                                                 
       32 root      20   0     0    0    0 S    0  0.0   0:00.00 kmmcd                                                   
       35 root      20   0     0    0    0 S    0  0.0   0:00.00 khungtaskd                                              
       36 root      20   0     0    0    0 S    0  0.0   0:00.00 kswapd0                                                 
       37 root      25   5     0    0    0 S    0  0.0   0:00.00 ksmd                                                    
       38 root      20   0     0    0    0 S    0  0.0   0:00.00 aio/0                                                   
       39 root      20   0     0    0    0 S    0  0.0   0:00.00 aio/1                                                   
       40 root      20   0     0    0    0 S    0  0.0   0:00.00 ecryptfs-kthrea
    That is very odd. That is almost always at 0% on mine. Sadly, I have no clue how to fix it. I have seen a bug for it from the Karmic kernel, nothing for Lucid though.
    Thank you for your contributions. "So long and thanks for the fish!"

  5. #5
    Join Date
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    Re: 10.04 upgrade: what is this 'events' process eating 60% of my CPU?

    ... and just for grins, here's a screenshot of the SystemMonitor. Check out the cyclic load on CPU1.
    Attached Images Attached Images

  6. #6
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    Re: 10.04 upgrade: what is this 'events' process eating 60% of my CPU?

    That matches this bug report, but the report was for Karmic. THe reporter for the bug was also using a Lenovo. Check it out. https://bugs.launchpad.net/ubuntu/+s...ux/+bug/537396 They are saying it has something to do with the wireless card.
    Thank you for your contributions. "So long and thanks for the fish!"

  7. #7
    Join Date
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    Re: 10.04 upgrade: what is this 'events' process eating 60% of my CPU?

    Thank you! Symptoms sure do match. (My eth0 lights are on, though the interface is unconfigured.)

  8. #8
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    Re: 10.04 upgrade: what is this 'events' process eating 60% of my CPU?

    Quote Originally Posted by JohnAspinall View Post
    Thank you! Symptoms sure do match. (My eth0 lights are on, though the interface is unconfigured.)
    I also have Lenovo and have the same problem.
    I did ´ifconfig eth0 down' and all is well now.
    I might need to do something else to take it down persistently...

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