* report stolen time via pvclock?
@ 2010-03-09 20:47 Thomas Treutner
2010-03-09 21:30 ` Marcelo Tosatti
0 siblings, 1 reply; 3+ messages in thread
From: Thomas Treutner @ 2010-03-09 20:47 UTC (permalink / raw)
To: KVM mailing list; +Cc: Marcelo Tosatti
Hi,
I'm referring to this patchset
http://www.mail-archive.com/kvm@vger.kernel.org/msg23810.html
of Marcelo Tosatti. It seems it was never included or even discussed, although
it's nearly half a year old. I wonder if there is a good reason for that? I'd
like to use the steal time for my VMs, as I consider it useful in some cases.
Thanks,
kr,t
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: report stolen time via pvclock?
2010-03-09 20:47 report stolen time via pvclock? Thomas Treutner
@ 2010-03-09 21:30 ` Marcelo Tosatti
2010-03-09 21:39 ` Rik van Riel
0 siblings, 1 reply; 3+ messages in thread
From: Marcelo Tosatti @ 2010-03-09 21:30 UTC (permalink / raw)
To: Thomas Treutner; +Cc: KVM mailing list
On Tue, Mar 09, 2010 at 09:47:38PM +0100, Thomas Treutner wrote:
> Hi,
>
> I'm referring to this patchset
>
> http://www.mail-archive.com/kvm@vger.kernel.org/msg23810.html
>
> of Marcelo Tosatti. It seems it was never included or even discussed, although
> it's nearly half a year old. I wonder if there is a good reason for that? I'd
> like to use the steal time for my VMs, as I consider it useful in some cases.
There is a problem with it: stolen time is accounted separately (in
addition to) user/system/idle.
And as you noted there seems to be lack of interest in the feature.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: report stolen time via pvclock?
2010-03-09 21:30 ` Marcelo Tosatti
@ 2010-03-09 21:39 ` Rik van Riel
0 siblings, 0 replies; 3+ messages in thread
From: Rik van Riel @ 2010-03-09 21:39 UTC (permalink / raw)
To: Marcelo Tosatti; +Cc: Thomas Treutner, KVM mailing list
On 03/09/2010 04:30 PM, Marcelo Tosatti wrote:
> On Tue, Mar 09, 2010 at 09:47:38PM +0100, Thomas Treutner wrote:
>> Hi,
>>
>> I'm referring to this patchset
>>
>> http://www.mail-archive.com/kvm@vger.kernel.org/msg23810.html
>>
>> of Marcelo Tosatti. It seems it was never included or even discussed, although
>> it's nearly half a year old. I wonder if there is a good reason for that? I'd
>> like to use the steal time for my VMs, as I consider it useful in some cases.
>
> There is a problem with it: stolen time is accounted separately (in
> addition to) user/system/idle.
>
> And as you noted there seems to be lack of interest in the feature.
More like a lack of time to implement it properly for KVM.
I know it is a useful feature for system administrators, and
should probably try to get it reimplemented so it works right
and with lower overhead than full schedstats (I have some
ideas on how to achieve that).
Thanks for reminding me of this project :)
^ permalink raw reply [flat|nested] 3+ messages in thread
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2010-03-09 21:30 ` Marcelo Tosatti
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