Re: [Xen-users] Disk Usages

[Jonathan Tripathy <jonnyt@xxxxxxxxxxx>]

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

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