Re: [Xen-users] Re: process limit

[Ming-Wei Shih <xming@xxxxxxxxxxxxxxxxx>]

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Charles Duffy wrote:
> Anand wrote:
>> Yes it makes sense, however i was wondering if something like this is
>> possible or not. Lets say a heavy disk io process goes wild and keeps
>> on writing to disk and span multiple processes, the dom0 can come to a
>> grinding halt. (for that matter there is no way to do disk io
>> scheduling like cpu scheduling :( )
>
> IIRC, disk I/O scheduling is a TODO for Xen and should be supported in
> the future.
>
> That said, have you actually seen this case (where the Dom0 comes to a
> complete halt, I/O blocked on account of disk usage by the DomUs)?
Under heavy io I have the DomU just stopped responding, but Dom0 and
other DomU are still
running fine,

Ming-Wei
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