On Tue, 18 Mar 2008 18:22:51 +0900 (JST)
Hirokazu Takahashi <taka@valinux.co.jp> wrote:

>  # mount -t cgroup -o bio none /cgroup/bio
> 
> Then, you make new bio cgroups and put some processes in them.
> 
>  # mkdir /cgroup/bio/bgroup1
>  # mkdir /cgroup/bio/bgroup2
>  # echo 1234 /cgroup/bio/bgroup1/tasks
>  # echo 5678 /cgroup/bio/bgroup1/tasks
> 
> Now you check the ids of the bio cgroups which you just created.
> 
>  # cat /cgroup/bio/bgroup1/bio.id
>    1
>  # cat /cgroup/bio/bgroup2/bio.id
>    2
> 
> Finally, you can attach the cgroups to "ioband1" and assign them weights.
> 
>  # dmsetup message ioband1 0 type cgroup
>  # dmsetup message ioband1 0 attach 1
>  # dmsetup message ioband1 0 attach 2
>  # dmsetup message ioband1 0 weight 1:30
>  # dmsetup message ioband1 0 weight 2:60
> 
> You can find the manual of dm-ioband at
> http://people.valinux.co.jp/~ryov/dm-ioband/manual/index.html.
> But the user interface for the bio cgroup is temporal and it will be
> changed after the io_context support. 
> 
I'm grad if these some kinds of params rather than 'id' are also shown
under cgroup.

Thanks,
-Kame




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