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Date: Tue, 18 Oct 2016 15:38:01 +0200
From: Radim =?utf-8?B?S3LEjW3DocWZ?= <rkrcmar@redhat.com>
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Subject: Re: [Qemu-devel] invtsc + migration + TSC scaling
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To: Paolo Bonzini <pbonzini@redhat.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>, Eduardo Habkost <ehabkost@redhat.com>, qemu-devel@nongnu.org, kvm@vger.kernel.org

2016-10-18 15:36+0200, Radim Kr=C4=8Dm=C3=A1=C5=99:
> 2016-10-17 18:24+0200, Paolo Bonzini:
>> We should also blacklist the TSC deadline timer when invtsc is not
>> available.
>=20
> True.
>=20
> I was thinking that with Wanpeng's VMX preemption patches, we might not
> need the TSC nor paravirtual deadline timer, the because performance of
> LAPIC one-shot could be very similar.

No, I sent before thinking -- deadline timer also has better precision,
so it is still useful.