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high load average?



hello,
Have amd64 sarge installed with a 2.6.15 em64t kernel.
I was noticing that top was showing some processes running and thought it was 
a little high. I took a copy of the top command and pasted below.
This server was sitting doing nothing at that time, but shows I have 2 
running. 
When a server is completely idle, shouldn't the load average be 0.00 ?
and only showing 1 total tasks running? This one flips between 2 and 1 all 
the time. (at idle times)
Is there any other way to figure out what that other process might be?

Thanks for any help!
cheers,
Mike



top - 08:10:02 up 3 days, 23:12,  1 user,  load average: 0.40, 0.41, 0.41
Tasks:  83 total,   2 running,  81 sleeping,   0 stopped,   0 zombie
Cpu(s):  0.0% us,  0.0% sy,  0.0% ni, 100.0% id,  0.0% wa,  0.0% hi,  0.0% si
Mem:   2060168k total,  2038336k used,    21832k free,    23124k buffers
Swap:        0k total,        0k used,        0k free,  1540540k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
    1 root      16   0  2664  564  480 S  0.0  0.0   0:00.19 init
    2 root      34  19     0    0    0 S  0.0  0.0   0:00.00 ksoftirqd/0
    3 root      RT   0     0    0    0 S  0.0  0.0   0:00.00 watchdog/0
    4 root      10  -5     0    0    0 S  0.0  0.0   0:00.01 events/0
    5 root      13  -5     0    0    0 S  0.0  0.0   0:00.00 khelper
    6 root      10  -5     0    0    0 S  0.0  0.0   0:00.00 kthread
    8 root      10  -5     0    0    0 S  0.0  0.0   0:00.22 kblockd/0
   11 root      10  -5     0    0    0 S  0.0  0.0   0:00.00 khubd
   13 root      20  -5     0    0    0 S  0.0  0.0   0:00.00 kacpid
  153 root      18  -5     0    0    0 S  0.0  0.0   0:00.00 aio/0
  152 root      15   0     0    0    0 S  0.0  0.0   1:04.95 kswapd0
  755 root      10  -5     0    0    0 S  0.0  0.0   0:00.00 kseriod
  853 root      10  -5     0    0    0 S  0.0  0.0   0:00.00 ata/0
  857 root      11  -5     0    0    0 S  0.0  0.0   0:00.00 scsi_eh_0
  858 root      11  -5     0    0    0 S  0.0  0.0   0:00.00 scsi_eh_1
  927 root      10  -5     0    0    0 S  0.0  0.0   0:03.29 md1_raid1
  959 root      10  -5     0    0    0 S  0.0  0.0   0:03.47 md2_raid1



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