From: Marcelo Tosatti <mtosatti@redhat.com>
To: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>
Cc: Anthony Liguori <aliguori@us.ibm.com>, KVM <kvm@vger.kernel.org>,
"H. Peter Anvin" <hpa@zytor.com>,
Thomas Gleixner <tglx@linutronix.de>, X86 <x86@kernel.org>,
Ingo Molnar <mingo@redhat.com>, Avi Kivity <avi@redhat.com>,
LKML <linux-kernel@vger.kernel.org>,
Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com>,
Gleb Natapov <gleb@redhat.com>
Subject: Re: [PATCH 1/1] kvm : vmx : Remove yield_on_hlt
Date: Tue, 7 Feb 2012 19:15:46 -0200 [thread overview]
Message-ID: <20120207211546.GA23022@amt.cnet> (raw)
In-Reply-To: <20120207174919.3848.99779.sendpatchset@oc5400248562.ibm.com>
On Tue, Feb 07, 2012 at 11:19:20PM +0530, Raghavendra K T wrote:
> yield_on_hlt was introduced for CPU bandwidth capping. now it is redundant
> with CFS hardlimit.
>
> yield_on_hlt also complicates the scenario in paravirtual environment, that
> needs to trap halt. for e.g. paravirtualized ticket spinlocks.
>
> Changelog:
> Remove the support for yield_on_hlt.
>
> Signed-off-by: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>
Applied, thanks.
prev parent reply other threads:[~2012-02-07 21:15 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-07 17:49 [PATCH 1/1] kvm : vmx : Remove yield_on_hlt Raghavendra K T
2012-02-07 18:04 ` Anthony Liguori
2012-02-07 21:15 ` Marcelo Tosatti [this message]
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