[rhelv6-list] Limiting pvmove speed with control groups doesn't work as expected

[Gianluca Cecchi]

On Tue, Jul 26, 2016 at 4:00 PM, Gianluca Cecchi wrote:

>
>
> But then if I try to use the same approach with pvmove command:
>
> # cgexec -g blkio:30M pvmove -i 60
>  /dev/mapper/360a9800037543543592442595559337a /dev/mapper/3600a098038303769752b495147377857
>
> I get
>
> Device:            tps    MB_read/s    MB_wrtn/s    MB_read    MB_wrtn
> sdah             29.00        14.50         0.00         43          0
> sdaw             29.00        14.37         0.00         43          0
> sdcp             28.67        14.29         0.00         42          0
> sdde             28.67        14.33         0.00         43          0
>
> it seems an intermediate ....
>
>
BTW: I also tested using "--sticky" option

# cgexec -g blkio:30M --sticky pvmove . . . .

but same behavior. Indeed I don't see any explicit child process originated
by the pvmove command....

Gianluca
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