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Thread: Arbitrary 100% Processor Usage


hello,

i'm having issue both of ubuntu machines seem arbitrarily eat of processor power when i'm not doing really.

i've got 2 laptops, both ubuntu. 1 10.10, other 11.10. both have fluxbox, transset, , xcompmgr installed. whey they're working properly, processor sits around 10 - 15 percent, more if i've got lots , lots of tabs open in opera or firefox or something. reason though, processor shoots 100% sometimes, , stays way hours. nothing provokes this. i've attatched 2 screenshots of conky, 1 each machine. @ time of writing, 10.10 machine (the 1 i'm writing on) behaving normally, can tell first screenshot. it's using less processor power other one, though it's running opera , fatrat. other machine, having been booted up, has nothing open aside shutter (which used conky screenshot, , should absolutely not eat 100% of processor power), , yet cpu load consistently between 95% , 100%. in experience, persists until arbitrarily stops. shutting down , rebooting don't remedy it, , killing processes reported using cpu doesn't remedy either.

screenshot of 10.10 machine running properly.


screenshot of 11.10 machine consuming 100% of processor power.


hope can shed light on problem, it's frustrating. below find output of top machine not working properly.

code:
top - 16:41:49 42 min,  1 user,  load average: 4.27, 3.52, 2.96  tasks: 130 total,   3 running, 127 sleeping,   0 stopped,   0 zombie  cpu(s): 33.4%us, 22.7%sy, 42.6%ni,  0.7%id,  0.0%wa,  0.0%hi,  0.4%si,  0.0%st  mem:   2050448k total,  1016272k used,  1034176k free,    71492k buffers  swap:  2928636k total,        0k used,  2928636k free,   527688k cached      pid user      pr  ni  virt  res  shr s %cpu %mem    time+  command                                                                                              2300 root      39  19  188m 173m 6348 r   86  8.7  25:08.20 update-apt-xapi                                                                                      3072 bonez     20   0 75700 5136 3840 s   39  0.3   7:01.47 conky                                                                                                1379 root      20   0 67848  50m  10m r   38  2.5  14:05.14 xorg                                                                                                 3552 bonez     20   0  154m  14m  10m s   22  0.7   0:06.75 gnome-terminal                                                                                       3634 bonez     20   0  2664 1108  832 r    5  0.1   0:00.45 top                                                                                                   442 messageb  20   0  4100 1932 1140 s    3  0.1   1:21.05 dbus-daemon                                                                                          1276 root      20   0 24448 7040 1916 s    2  0.3   0:25.94 python                                                                                               2844 root      20   0     0    0    0 s    2  0.0   0:17.28 kworker/1:0                                                                                          3556 root      20   0     0    0    0 s    2  0.0   0:00.60 kworker/0:3                                                                                          1359 root      20   0 14696 7496 3580 s    1  0.4   0:11.79 python                                                                                               1908 bonez     20   0 11912 5300 4180 s    0  0.3   0:28.00 fluxbox                                                                                              1952 bonez     20   0  264m  67m  25m s    0  3.4   3:09.55 cairo-dock                                                                                           1957 bonez     20   0  3680 1096  856 s    0  0.1   0:17.27 xcompmgr                                                                                             3296 root      20   0     0    0    0 s    0  0.0   0:03.28 kworker/0:0                                                                                             1 root      20   0  3320 1888 1260 s    0  0.1   0:09.98 init                                                                                                    2 root      20   0     0    0    0 s    0  0.0   0:00.02 kthreadd                                                                                                3 root      20   0     0    0    0 s    0  0.0   0:00.54 ksoftirqd/0                                                                                             5 root      20   0     0    0    0 s    0  0.0   0:04.81 kworker/u:0                                                                                             6 root      rt   0     0    0    0 s    0  0.0   0:00.00 migration/0                                                                                             7 root      rt   0     0    0    0 s    0  0.0   0:00.00 migration/1                                                                                             9 root      20   0     0    0    0 s    0  0.0   0:00.41 ksoftirqd/1                                                                                            11 root       0 -20     0    0    0 s    0  0.0   0:00.00 cpuset                                                                                                 12 root       0 -20     0    0    0 s    0  0.0   0:00.00 khelper                                                                                                13 root       0 -20     0    0    0 s    0  0.0   0:00.00 netns                                                                                                  15 root      20   0     0    0    0 s    0  0.0   0:00.05 sync_supers                                                                                            16 root      20   0     0    0    0 s    0  0.0   0:00.00 bdi-default                                                                                            17 root       0 -20     0    0    0 s    0  0.0   0:00.00 kintegrityd                                                                                            18 root       0 -20     0    0    0 s    0  0.0   0:00.00 kblockd                                                                                                19 root       0 -20     0    0    0 s    0  0.0   0:00.00 ata_sff                                                                                                20 root      20   0     0    0    0 s    0  0.0   0:00.13 khubd                                                                                                  21 root       0 -20     0    0    0 s    0  0.0   0:00.00 md                                                                                                     23 root      20   0     0    0    0 s    0  0.0   0:00.00 khungtaskd                                                                                             24 root      20   0     0    0    0 s    0  0.0   0:00.00 kswapd0                                                                                                25 root      25   5     0    0    0 s    0  0.0   0:00.00 ksmd                                                                                                   26 root      39  19     0    0    0 s    0  0.0   0:00.00 khugepaged                                                                                             27 root      20   0     0    0    0 s    0  0.0   0:00.01 fsnotify_mark                                                                                          28 root      20   0     0    0    0 s    0  0.0   0:00.00 ecryptfs-kthrea                                                                                        29 root       0 -20     0    0    0 s    0  0.0   0:00.00 crypto                                                                                                 37 root       0 -20     0    0    0 s    0  0.0   0:00.00 kthrotld                                                                                               47 root      20   0     0    0    0 s    0  0.0   0:00.01 scsi_eh_0

update-apt-xapi known hight cpu usage - lots of bugs reports on launchpad. runs after start up, , takes few minutes complete. either let be, or remove apt-xapian-index package entirely.

according top output, conky gross offender (might responsible xorg cpu usage), might want remove either.


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