[mythtv-users] MythBuntu 11.10 on ESXi

[Jim Oltman]

I'm having an issue with my 11.10 install of MythBuntu that lives on an
ESXi 4.1u2 box.  The MythBuntu Backend guest has 2 CPUs assigned to it,
with 6GB of RAM.  The recording storage lives on another VM (FreeNAS) on
the same host (not using VMXNET3 driver, just Intel 1GB) that's accessed
via NFS.  I'm seeing this in 'top':

joltman at mythbackend:/var/log/mythtv$ top
top - 21:29:39 up 43 days,  9:14,  1 user,  load average: 17.58, 17.65,
18.64
Tasks: 139 total,   2 running, 137 sleeping,   0 stopped,   0 zombie
Cpu(s):  2.6%us, 12.8%sy, 30.8%ni,  0.0%id,  0.0%wa,  2.6%hi, 51.3%si,
 0.0%st
Mem:   6125956k total,  5282156k used,   843800k free,    65188k buffers
Swap:        0k total,        0k used,        0k free,  4511196k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
    9 root      20   0     0    0    0 S   76  0.0  37424:33 ksoftirqd/1
25613 mythtv    20   0  639m  29m  19m S   64  0.5   6:31.08 mythbackend
    3 root      20   0     0    0    0 S   49  0.0  34413:04 ksoftirqd/0
25647 mythtv    37  17  523m 209m  19m R    9  3.5   1:15.52 mythcommflag
25093 root      20   0     0    0    0 S    1  0.0   0:59.75 kworker/0:1
 2042 joltman   20   0  201m  13m 4564 S    0  0.2 154:27.87 xfce4-panel
25658 joltman   20   0 21468 1360  992 R    0  0.0   0:00.45 top
    1 root      20   0 24300 2216 1192 S    0  0.0   0:02.70 init
    2 root      20   0     0    0    0 S    0  0.0   0:01.15 kthreadd
    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
   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   0:06.33 sync_supers
   16 root      20   0     0    0    0 S    0  0.0   0:00.97 bdi-default
   17 root       0 -20     0    0    0 S    0  0.0   0:00.00 kintegrityd
joltman at mythbackend:/var/log/mythtv$

Why is the ksoftirqd using 76% cpu?  MythBackend process is very high.
 Even when I'm not playing or recording anything.  I've done a cat
/proc/interrupts and this stood out:

 18:  588914093          0   IO-APIC-fasteoi   ioc0, eth0

I know the first thing people will suggest will be to move to 0.25.  I'm
actually thinking of jumping straight to 0.26 beta.  Does anyone have any
advice or things I should look for?  Thanks!
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