From: "Chris Friesen" <cfriesen@nortel.com>
To: Avi Kivity <avi@redhat.com>
Cc: balbir@linux.vnet.ibm.com, bharata@linux.vnet.ibm.com,
linux-kernel@vger.kernel.org,
Dhaval Giani <dhaval@linux.vnet.ibm.com>,
Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>,
Gautham R Shenoy <ego@in.ibm.com>,
Srivatsa Vaddagiri <vatsa@in.ibm.com>,
Ingo Molnar <mingo@elte.hu>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Pavel Emelyanov <xemul@openvz.org>,
kvm@vger.kernel.org,
Linux Containers <containers@lists.linux-foundation.org>,
Herbert Poetzl <herbert@13thfloor.at>
Subject: Re: [RFC] CPU hard limits
Date: Fri, 05 Jun 2009 08:54:14 -0600 [thread overview]
Message-ID: <4A293196.2060006@nortel.com> (raw)
In-Reply-To: <4A291A2F.3090201@redhat.com>
Avi Kivity wrote:
> I am selling virtual private servers. A 10% cpu share costs $x/month,
> and I guarantee you'll get that 10%, or your money back. On the other
> hand, I want to limit cpu usage to that 10% (maybe a little more) so
> people don't buy 10% shares and use 100% on my underutilized servers.
> If they want 100%, let them pay for 100%.
What about taking a page from the networking folks and specifying cpu
like a networking SLA?
Something like "group A is guaranteed X percent (or share) of the cpu,
but it is allowed to burst up to Y percent for Z milliseconds"
If a rule of this form was the first-class citizen, it would provide
both guarantees, limits, and flexible behaviour.
Chris
next prev parent reply other threads:[~2009-06-05 14:54 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-04 5:36 [RFC] CPU hard limits Bharata B Rao
2009-06-04 12:19 ` Avi Kivity
2009-06-04 21:32 ` Mike Waychison
2009-06-05 3:03 ` Bharata B Rao
2009-06-05 3:33 ` Avi Kivity
2009-06-05 4:37 ` Balbir Singh
2009-06-05 4:44 ` Avi Kivity
2009-06-05 4:49 ` Balbir Singh
2009-06-05 5:09 ` Chris Friesen
2009-06-05 5:13 ` Balbir Singh
2009-06-05 5:10 ` Balbir Singh
2009-06-05 5:21 ` Avi Kivity
2009-06-05 5:27 ` Balbir Singh
2009-06-05 5:31 ` Bharata B Rao
2009-06-05 6:01 ` Avi Kivity
[not found] ` <4A28B4CE.4010004-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2009-06-05 8:16 ` Bharata B Rao
2009-06-07 6:04 ` Avi Kivity
2009-06-07 16:14 ` Bharata B Rao
2009-06-05 9:39 ` Balbir Singh
2009-06-05 13:14 ` Avi Kivity
[not found] ` <4A291A2F.3090201-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2009-06-05 13:42 ` Balbir Singh
2009-06-07 6:09 ` Avi Kivity
2009-06-05 14:54 ` Chris Friesen [this message]
2009-06-07 6:10 ` Avi Kivity
2009-06-05 9:24 ` Balbir Singh
2009-06-05 6:03 ` Avi Kivity
2009-06-05 6:32 ` Bharata B Rao
2009-06-05 12:57 ` Avi Kivity
2009-06-05 5:16 ` Avi Kivity
2009-06-05 5:20 ` Balbir Singh
2009-06-05 3:07 ` Balbir Singh
2009-06-05 8:53 ` Paul Menage
2009-06-05 9:27 ` Bharata B Rao
2009-06-05 9:32 ` Paul Menage
2009-06-05 9:48 ` Dhaval Giani
2009-06-05 9:51 ` Paul Menage
2009-06-05 9:59 ` Dhaval Giani
2009-06-05 10:03 ` Paul Menage
2009-06-08 8:50 ` Pavel Emelyanov
2009-06-05 9:36 ` Balbir Singh
[not found] ` <20090605093625.GI11755-SINUvgVNF2CyUtPGxGje5AC/G2K4zDHf@public.gmane.org>
2009-06-05 9:48 ` Paul Menage
2009-06-05 9:55 ` Balbir Singh
2009-06-05 9:57 ` Paul Menage
2009-06-05 10:02 ` Paul Menage
2009-06-05 11:32 ` Srivatsa Vaddagiri
2009-06-05 12:18 ` Paul Menage
[not found] ` <6599ad830906050518t6cd7d477h36a187f2eaf55578-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2009-06-07 10:11 ` Srivatsa Vaddagiri
2009-06-07 15:35 ` Balbir Singh
2009-06-08 4:37 ` Srivatsa Vaddagiri
2009-06-05 14:44 ` Chris Friesen
2009-06-05 13:02 ` Avi Kivity
2009-06-05 13:43 ` Dhaval Giani
2009-06-05 14:45 ` Chris Friesen
2009-06-05 9:02 ` Reinhard Tartler
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