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SubjectRe: [PATCH 0/4] Alter steal-time reporting in the guest
2013/2/19 Marcelo Tosatti <>:
> On Mon, Feb 18, 2013 at 05:43:47PM +0100, Frederic Weisbecker wrote:
>> 2013/2/5 Michael Wolf <>:
>> > In the case of where you have a system that is running in a
>> > capped or overcommitted environment the user may see steal time
>> > being reported in accounting tools such as top or vmstat. This can
>> > cause confusion for the end user.
>> Sorry, I'm no expert in this area. But I don't really understand what
>> is confusing for the end user here.
> I suppose that what is wanted is to subtract stolen time due to 'known
> reasons' from steal time reporting. 'Known reasons' being, for example,
> hard caps. So a vcpu executing instructions with no halt, but limited to
> 80% of available bandwidth, would not have 20% of stolen time reported.

Ok, that's a good explanation to add to make that subtle steal time
issue clearer.

> But yes, a description of the scenario that is being dealt with, with
> details, is important.

Yeah especially for such a significant user ABI change.

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