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RE: [Xen-devel] disk I/O QoS in 3.0?

  • To: "Matt Ayres" <matta@xxxxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: "Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx>
  • Date: Thu, 28 Jul 2005 22:20:45 +0100
  • Delivery-date: Thu, 28 Jul 2005 21:19:15 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: AcWTuTUUBpOQSxABT+Sas1P0CCC9VwAAFvuA
  • Thread-topic: [Xen-devel] disk I/O QoS in 3.0?


> I keep track of the code changes and haven't seen anything 
> specifically for improved disk I/O accounting and QoS.  Has 
> worked been done on this (or perhaps something I missed) or 
> is this a feature that we should not expect to see?

Nothing has been checked in yet, though its actually pretty trivial: its
just a case of tagging requests with the domain they came from and then
Linux's normal IO scheduler infrastructure can take care of it. We can
wrap it with a few xm commands to make it easier to configure.


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