[Lustre-discuss] high CPU usage on MDS

[Colin Faber]

Hi,

More details are needed here. What type of interconnect are you using? 
What are your clients doing? etc.

-cf


On 07/04/2011 11:08 PM, Ekaterina Popova wrote:
> Hello!
>
> We've got one MDS (Lustre 2.0) with 4 processors (Intel(R) Core(TM)2
> Quad CPU    Q9500  @ 2.83GHz).
> Our CPU usage is HIGH - 80-100% .
> With top command we see:
>    PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
> 2973 root      15   0     0    0    0 R 35.0  0.0   1509:09 socknal_sd02
>    2972 root      15   0     0    0    0 S 33.5  0.0   1132:13 socknal_sd01
>    2971 root      15   0     0    0    0 S 19.8  0.0   1129:12 socknal_sd00
>    2974 root      16   0     0    0    0 R 13.7  0.0 830:47.46 socknal_sd03
>
> Is it normal situation? Can we improve performance at mds ? Maybe
> setting any parameters?
> (Only about 70 clients mount to Lustre and not all of them work with it.)
>
> With regards,
> Popova Ekaterina
>
>
>
>
> _______________________________________________
> Lustre-discuss mailing list
> Lustre-discuss at lists.lustre.org
> http://lists.lustre.org/mailman/listinfo/lustre-discuss