From mboxrd@z Thu Jan  1 00:00:00 1970
From: Paolo Bonzini <pbonzini@redhat.com>
Subject: Re: Seeking a KVM benchmark
Date: Wed, 12 Nov 2014 16:26:29 +0100
Message-ID: <54637C25.5000305@redhat.com>
References: <CALCETrWhT4zp7Br2DV-9BmrJSY0xWTJ_9ybM_cWiCiOitCyvCg@mail.gmail.com> <20141109085238.GA26187@minantech.com> <CALCETrXG4WvJWfjsnH7AmXHDKjt+kmiQqvG4X2VZz+g_fARTLA@mail.gmail.com> <54608D77.2090907@redhat.com> <20141110104531.GB26187@minantech.com> <5460AC7C.8040409@redhat.com> <5460CA71.2050701@gmail.com> <5460F5B9.8030902@redhat.com> <20141110173835.GA26770@minantech.com> <5463458C.2070000@redhat.com> <20141112152204.GC26187@minantech.com>
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Cc: Avi Kivity <avi.kivity@gmail.com>,
	Andy Lutomirski <luto@amacapital.net>,
	kvm list <kvm@vger.kernel.org>
To: Gleb Natapov <gleb@kernel.org>
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On 12/11/2014 16:22, Gleb Natapov wrote:
>> > Nehalem results:
>> > 
>> > userspace exit, urn                      17560 17726 17628 17572 17417
>> > lightweight exit, urn                     3316  3342  3342  3319  3328
>> > userspace exit, LOAD_EFER, guest!=host   12200 11772 12130 12164 12327
>> > lightweight exit, LOAD_EFER, guest!=host  3214  3220  3238  3218  3337
>> > userspace exit, LOAD_EFER, guest=host    11983 11780 11920 11919 12040
>> > lightweight exit, LOAD_EFER, guest=host   3178  3193  3193  3187  3220
>> > 
> Is this with Andy's patch that skips LOAD_EFER when guest=host, or the one
> that always switch LOAD_EFER?

Skip LOAD_EFER when guest=host.

Paolo