[libvirt] [PATCH] Priority of vzctl create should be lower

[Yuji NISHIDA]

Hi Chris,

I think vzctl create command invokes processes which occupy CPU and  
Disk I/O.
It seems clearly necessary for such commands to prevent from running  
prior to other processes.

But I almost agree with you.  We should have flexibility about it for  
users.
As you said if it requires to encode policy into libvirt, we should  
avoid it still now.
And I want to spend more time in writing some other patches :)

-----
Yuji Nishida
nishidy at nict.go.jp

On 2009/10/26, at 21:15, Chris Lalancette wrote:

> Yuji NISHIDA wrote:
>> Hi all
>>
>> About OpenVZ, it uses vzctl command that produces tar/gzip commands.
>> I think we should lower these commands for running other procedures
>> prior to them.
>> This is the patch to achieve it with nice/ionice commands.
>
> I'm not sure that this is such a good idea, as it is encoding policy  
> into
> libvirt.  There have been other requests for being able to set the  
> priorities of
> certain domains, so it might make sense to have a more generic  
> "priority"
> concept that could be set by the user.  Then the user would specify  
> how
> important a particular task is, and we wouldn't be putting any  
> policy into
> libvirt itself.
>
> -- 
> Chris Lalancette