[mythtv-users] Horrendous RAID-6 performance

John Drescher drescherjm at gmail.com
Fri Mar 28 22:24:39 UTC 2008


>  Well, now that you mention it....  Nothing is using the system, but it's
>  still running at 67% wait states?  WTF?  What's it waiting for?  How do I
>  find the process that's waiting?
>
>  top - 15:18:08 up 2 days,  7:34,  2 users,  load average: 3.12, 3.66, 4.23
>  Tasks: 219 total,   2 running, 217 sleeping,   0 stopped,   0 zombie
>  Cpu(s):  3.1%us,  1.0%sy,  0.0%ni, 28.7%id, 66.8%wa,  0.0%hi,  0.5%si,
>  0.0%st
>  Mem:   2062908k total,  2046844k used,    16064k free,    18712k buffers
>  Swap:  3903712k total,   574648k used,  3329064k free,   720916k cached
>
>   PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
>   7137 motion    20   0  259m  12m  792 S    6  0.6 369:57.08 motion
>   7376 root      20   0 1126m 100m  11m S    1  5.0  24:15.67 mythbackend
>   7109 root      20   0  129m  50m 7148 S    1  2.5   4:21.79 Xorg
>   4960 root      15  -5     0    0    0 S    0  0.0   4:34.77 bond0
>   7399 root      15  -5     0    0    0 S    0  0.0   1:06.07 kdvb-fe-0
>     1 root      20   0 10392  664  632 S    0  0.0   0:04.14 init
>     2 root      15  -5     0    0    0 S    0  0.0   0:00.02 kthreadd
>
>
What is the motion process? And do you see your system is using 574MB of swap?

John


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