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Date: Tue, 17 Jul 2012 14:01:48 +0530 From: Raghavendra K T <raghavendra.kt@...ux.vnet.ibm.com> To: Avi Kivity <avi@...hat.com> CC: "H. Peter Anvin" <hpa@...or.com>, Thomas Gleixner <tglx@...utronix.de>, Marcelo Tosatti <mtosatti@...hat.com>, Ingo Molnar <mingo@...hat.com>, Rik van Riel <riel@...hat.com>, Srikar <srikar@...ux.vnet.ibm.com>, S390 <linux-s390@...r.kernel.org>, Carsten Otte <cotte@...ibm.com>, Christian Borntraeger <borntraeger@...ibm.com>, KVM <kvm@...r.kernel.org>, chegu vinod <chegu_vinod@...com>, "Andrew M. Theurer" <habanero@...ux.vnet.ibm.com>, LKML <linux-kernel@...r.kernel.org>, X86 <x86@...nel.org>, Gleb Natapov <gleb@...hat.com>, linux390@...ibm.com, Srivatsa Vaddagiri <srivatsa.vaddagiri@...il.com>, Joerg Roedel <joerg.roedel@....com> Subject: Re: [PATCH RFC V4 2/3] kvm: Note down when cpu relax intercepted or pause loop exited On 07/17/2012 01:52 PM, Avi Kivity wrote: > On 07/16/2012 08:24 PM, Raghavendra K T wrote: >> So are you saying allow vcpu to spin in non over-commit scenarios? So >> that we avoid all yield_to etc... >> >> ( Or even in some other place where it is useful). > > When is yielding useful, if you're not overcommitted? > Right. There is no need to do yield_to when run queue has only one task. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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