Re: [Xen-users] Disk Usages

Jonathan Tripathy
2011-06-16T21:48:50Z

On 16/06/2011 22:14, Florian Heigl wrote:
> Hi,
>
>> I am aware that I can throttle a DomU''s disk usage by using
ionice in the
>> Dom0 against the correct blkback process. However, how does one
actually
>> find out what the "offending" DomU is?
> if it''s enough to find out "after" the fact - meaning,
when there
> already IS excessive disk IO, then iotop is the very best thing since
> sliced bread.
> imho even better than top :)
>
> Can  you also give
>
https://bitbucket.org/darkfader/black-magic/src/d14a84157990/usr/local/bin/blksched
> a test run in this situation and let me know if it helps for you?
>
> Florian
>
>
Hi Florian,

Thanks for the tips. I discovered ionice and tried to use it. It did
help, however maybe for only a few minutes. However, could this be
because I''m only setting the ionice parameters for the
"offending" VPS?

Also, I was thinking of writing a script that could find the process ID
of the blkback process so  could script this to run after DomU startup.
Am I only the right lines here?

Thanks