From: Avi Kivity <avi@redhat.com>
To: Gleb Natapov <gleb@redhat.com>
Cc: kvm@vger.kernel.org, mtosatti@redhat.com
Subject: Re: [PATCH] KVM: vmx: restore MSR_IA32_DEBUGCTLMSR after VMEXIT
Date: Sun, 12 Aug 2012 16:40:48 +0300 [thread overview]
Message-ID: <5027B260.5060606@redhat.com> (raw)
In-Reply-To: <20120812132523.GM3341@redhat.com>
On 08/12/2012 04:25 PM, Gleb Natapov wrote:
>> How expensive is this? We may want a follow-on patch to cache it in a
>> per-cpu variable.
>>
> I have patches ready. I couldn't measure any overhead of the
> rdmsr(MSR_IA32_DEBUGCTLMSR).
>
Do you mean while running kvm? How about just running it in a loop?
--
error compiling committee.c: too many arguments to function
next prev parent reply other threads:[~2012-08-12 13:40 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-12 13:12 [PATCH] KVM: vmx: restore MSR_IA32_DEBUGCTLMSR after VMEXIT Gleb Natapov
2012-08-12 13:22 ` Avi Kivity
2012-08-12 13:25 ` Gleb Natapov
2012-08-12 13:40 ` Avi Kivity [this message]
2012-08-12 17:28 ` Gleb Natapov
2012-08-13 7:55 ` Avi Kivity
2012-08-13 22:07 ` Marcelo Tosatti
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