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Re: [Xen-devel] Paging/sharing in 4.2 (Was: Re: 4.2 TODO update)


  • To: "Olaf Hering" <olaf@xxxxxxxxx>
  • From: "Andres Lagar-Cavilla" <andres@xxxxxxxxxxxxxxxx>
  • Date: Tue, 13 Mar 2012 07:17:02 -0700
  • Cc: "Tim \(Xen.org\)" <tim@xxxxxxx>, Ian Campbell <ian.campbell@xxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxx>
  • Delivery-date: Tue, 13 Mar 2012 14:17:31 +0000
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  • List-id: Xen developer discussion <xen-devel.lists.xen.org>

>> There should probably be an option to set the actor to "none", meaning
>> that the toolstack is taking direct responsibility for this domains
>> memory targets. This would be used when "xl mem-paging-set domain
>> manual" was called allowing xl to implement the "xl mem-paging-set
>> domain N" in manual mode as described in
>> <1330078304.8557.157.camel@xxxxxxxxxxxxxxxxxxxxxx>. Or maybe this
>> corresponds to using "xl-auto" and "xl-manual" as the policies?
>
> I'm not sure about the manual mode. If one calls mem-paging-set or
> mem-balloon-set to change the target value, why not do it right away?
>
>
>> Thoughts?
>
> Thanks for the writeup, Ian!

Ditto, thanks for sorting this out
Andres
>
>> I suppose I ought to go back to
>> <1330078304.8557.157.camel@xxxxxxxxxxxxxxxxxxxxxx> and update the
>> descriptions to account for this "actor" scheme and also flesh out the
>> underlying libxl interface (which we previously have ignored in that
>> discussion). Would that be useful?
>
> Yes, an updated description/proposal is useful IMHO.
>
> Olaf
>>
>



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