From: Peter Zijlstra <peterz@infradead.org>
To: Jack Allister <jalliste@amazon.com>
Cc: bp@alien8.de, diapop@amazon.co.uk, hpa@zytor.com,
jmattson@google.com, joro@8bytes.org, kvm@vger.kernel.org,
linux-kernel@vger.kernel.org, metikaya@amazon.co.uk,
mingo@redhat.com, pbonzini@redhat.com, rkrcmar@redhat.com,
sean.j.christopherson@intel.com, tglx@linutronix.de,
vkuznets@redhat.com, wanpengli@tencent.com, x86@kernel.org
Subject: Re: ...\n
Date: Tue, 31 May 2022 16:44:23 +0200 [thread overview]
Message-ID: <YpYpxzt4rmG+LFy9@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <20220531140236.1435-1-jalliste@amazon.com>
On Tue, May 31, 2022 at 02:02:36PM +0000, Jack Allister wrote:
> The reasoning behind this is that you may want to run a guest at a
> lower CPU frequency for the purposes of trying to match performance
> parity between a host of an older CPU type to a newer faster one.
That's quite ludicrus. Also, then it should be the host enforcing the
cpufreq, not the guest.
next prev parent reply other threads:[~2022-05-31 14:45 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-31 10:59 [PATCH] KVM: VMX: CPU frequency scaling for intel x86_64 KVM guests Jack Allister
2022-05-31 11:43 ` Metin Kaya
2022-05-31 18:11 ` Paolo Bonzini
2022-06-01 12:55 ` David Woodhouse
2022-05-31 13:38 ` Peter Zijlstra
2022-05-31 14:02 ` ...\n Jack Allister
2022-05-31 14:44 ` Peter Zijlstra [this message]
2022-05-31 14:52 ` ...\n Durrant, Paul
2022-05-31 15:51 ` ...\n Paolo Bonzini
2022-06-01 7:57 ` ...\n Vitaly Kuznetsov
2022-06-01 8:59 ` ...\n Paolo Bonzini
2022-06-01 10:19 ` ...\n Peter Zijlstra
2022-06-01 6:52 ` ...\n Peter Zijlstra
2022-06-01 8:03 ` ...\n Vitaly Kuznetsov
2022-06-01 8:25 ` ...\n Christophe de Dinechin
2022-06-01 8:54 ` ...\n Durrant, Paul
2022-06-01 8:57 ` ...\n Paolo Bonzini
2022-06-01 9:20 ` ...\n Durrant, Paul
2022-06-01 9:43 ` ...\n Amit Shah
2022-06-01 13:14 ` ...\n David Woodhouse
2022-05-31 14:52 ` ...\n Paolo Bonzini
2022-05-31 15:27 ` ...\n Peter Zijlstra
2022-05-31 15:01 ` [PATCH] KVM: VMX: CPU frequency scaling for intel x86_64 KVM guests Vitaly Kuznetsov
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