From: Marcelo Tosatti <mtosatti@redhat.com>
To: Avi Kivity <avi@redhat.com>
Cc: kvm@vger.kernel.org, Gleb Natapov <gleb@redhat.com>
Subject: Re: [PATCH] KVM: Don't update PPR on any APIC read
Date: Mon, 30 Jul 2012 20:48:09 -0300 [thread overview]
Message-ID: <20120730234809.GA31459@amt.cnet> (raw)
In-Reply-To: <1342968060-23683-1-git-send-email-avi@redhat.com>
On Sun, Jul 22, 2012 at 05:41:00PM +0300, Avi Kivity wrote:
> The current code will update the PPR on almost any APIC read; however
> that's only required if we read the PPR.
>
> kvm_update_ppr() shows up in some profiles, albeit with a low usage (~1%).
> This should reduce it further (it will still be called during interrupt
> processing).
>
> Signed-off-by: Avi Kivity <avi@redhat.com>
Applied, thanks.
prev parent reply other threads:[~2012-07-30 23:48 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-22 14:41 [PATCH] KVM: Don't update PPR on any APIC read Avi Kivity
2012-07-30 23:48 ` Marcelo Tosatti [this message]
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