From: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>, Avi Kivity <avi@redhat.com>,
Ingo Molnar <mingo@redhat.com>,
Marcelo Tosatti <mtosatti@redhat.com>,
Rik van Riel <riel@redhat.com>,
Srikar <srikar@linux.vnet.ibm.com>,
"Nikunj A. Dadhania" <nikunj@linux.vnet.ibm.com>,
KVM <kvm@vger.kernel.org>, Jiannan Ouyang <ouyang@cs.pitt.edu>,
Chegu Vinod <chegu_vinod@hp.com>,
"Andrew M. Theurer" <habanero@linux.vnet.ibm.com>,
LKML <linux-kernel@vger.kernel.org>,
Srivatsa Vaddagiri <srivatsa.vaddagiri@gmail.com>,
Gleb Natapov <gleb@redhat.com>, Andrew Jones <drjones@redhat.com>
Subject: Re: [PATCH V2 RFC 3/3] kvm: Check system load and handle different commit cases accordingly
Date: Wed, 31 Oct 2012 11:40:37 +0530 [thread overview]
Message-ID: <5090C0DD.4070505@linux.vnet.ibm.com> (raw)
In-Reply-To: <1351584858.4047.32.camel@twins>
On 10/30/2012 01:44 PM, Peter Zijlstra wrote:
> On Tue, 2012-10-30 at 11:27 +0530, Raghavendra K T wrote:
>> Okay, now IIUC, usage of *any* global measure is bad?
>
> Yep, people like to carve up their machines, esp. now that they're
> somewhat bigger than they used to be. This can result in very asymmetric
> loads, no global measure can ever deal with that.
Thanks for explaining the concerns. Very True and if load is very
asymmetric due to power optimization etc constraints. This may affect.
next prev parent reply other threads:[~2012-10-31 6:15 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-29 14:06 [PATCH V2 RFC 0/3] kvm: Improving undercommit,overcommit scenarios Raghavendra K T
2012-10-29 14:06 ` [PATCH V2 RFC 1/3] sched: Bail out of yield_to when source and target runqueue has one task Raghavendra K T
2012-10-29 14:07 ` [PATCH V2 RFC 2/3] kvm: Handle yield_to failure return code for potential undercommit case Raghavendra K T
2012-10-31 12:38 ` Avi Kivity
2012-10-31 12:41 ` Raghavendra K T
2012-10-31 13:15 ` Raghavendra K T
2012-10-31 13:41 ` Avi Kivity
2012-10-31 17:06 ` Raghavendra K T
2012-11-07 10:25 ` Raghavendra K T
2012-11-09 8:38 ` [PATCH V2 RESEND " Raghavendra K T
2012-10-29 14:07 ` [PATCH V2 RFC 3/3] kvm: Check system load and handle different commit cases accordingly Raghavendra K T
2012-10-29 17:54 ` Peter Zijlstra
2012-10-30 5:57 ` Raghavendra K T
2012-10-30 6:34 ` Andrew Jones
2012-10-30 7:31 ` Raghavendra K T
2012-10-30 9:07 ` Andrew Jones
2012-10-31 12:24 ` Raghavendra K T
2012-10-30 8:14 ` Peter Zijlstra
2012-10-31 6:10 ` Raghavendra K T [this message]
2012-10-30 12:17 ` [PATCH V2 RFC 0/3] kvm: Improving undercommit,overcommit scenarios Andrew Theurer
2012-10-31 6:36 ` Raghavendra K T
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