From: Marcelo Tosatti <mtosatti@redhat.com>
To: Michael Wolf <mjw@linux.vnet.ibm.com>
Cc: linux-kernel@vger.kernel.org, riel@redhat.com,
kvm@vger.kernel.org, peterz@infradead.org, glommer@parallels.com,
mingo@redhat.com
Subject: Re: [PATCH 0/5] Alter steal time reporting in KVM
Date: Tue, 27 Nov 2012 22:32:29 -0200 [thread overview]
Message-ID: <20121128003229.GE8295@amt.cnet> (raw)
In-Reply-To: <20121127232442.GA8295@amt.cnet>
On Tue, Nov 27, 2012 at 09:24:42PM -0200, Marcelo Tosatti wrote:
> On Mon, Nov 26, 2012 at 02:36:24PM -0600, Michael Wolf wrote:
> > 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.
>
> The definition of stolen time is 'time during which the virtual CPU is
> runnable to not running'. Overcommit is the main scenario which steal
> time helps to detect.
Meant 'runnable but not running'.
> Can you describe the 'capped' case?
next prev parent reply other threads:[~2012-11-28 0:32 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-26 20:36 [PATCH 0/5] Alter steal time reporting in KVM Michael Wolf
2012-11-26 20:36 ` [PATCH 1/5] Alter the amount of steal time reported by the guest Michael Wolf
2012-11-26 20:36 ` [PATCH 2/5] Expand the steal time msr to also contain the consigned time Michael Wolf
2012-11-27 21:03 ` Konrad Rzeszutek Wilk
2012-11-28 15:23 ` Michael Wolf
2012-11-26 20:36 ` [PATCH 3/5] Add the code to send the consigned time from the host to the guest Michael Wolf
2012-11-26 20:37 ` [PATCH 4/5] Add a timer to allow the separation of consigned from steal time Michael Wolf
2012-11-26 20:37 ` [PATCH 5/5] Add an ioctl to communicate the consign limit to the host Michael Wolf
2012-11-27 8:48 ` [PATCH 0/5] Alter steal time reporting in KVM Glauber Costa
2012-11-27 15:10 ` Michael Wolf
2012-11-28 8:45 ` Glauber Costa
2012-11-28 18:44 ` Michael Wolf
2012-11-28 19:16 ` Anthony Liguori
2012-11-27 23:24 ` Marcelo Tosatti
2012-11-28 0:32 ` Marcelo Tosatti [this message]
2012-11-28 18:43 ` Michael Wolf
2012-11-28 20:55 ` Glauber Costa
2012-11-29 17:43 ` Michael Wolf
2012-12-05 12:46 ` Glauber Costa
2012-12-07 15:50 ` Michael Wolf
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