Sender: Paolo Bonzini <paolo.bonzini@gmail.com>
Message-ID: <ba8341d6-7ee7-1af1-1385-0a9226bbf952@redhat.com>
Date:   Mon, 29 Nov 2021 18:55:19 +0100
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Subject: Re: [PATCH v2 11/43] KVM: Don't block+unblock when halt-polling is
 successful
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To:     Sean Christopherson <seanjc@google.com>,
        Maxim Levitsky <mlevitsk@redhat.com>
Cc:     Marc Zyngier <maz@kernel.org>, Huacai Chen <chenhuacai@kernel.org>,
        Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>,
        Paul Mackerras <paulus@ozlabs.org>,
        Anup Patel <anup.patel@wdc.com>,
        Paul Walmsley <paul.walmsley@sifive.com>,
        Palmer Dabbelt <palmer@dabbelt.com>,
        Albert Ou <aou@eecs.berkeley.edu>,
        Christian Borntraeger <borntraeger@de.ibm.com>,
        Janosch Frank <frankja@linux.ibm.com>,
        James Morse <james.morse@arm.com>,
        Alexandru Elisei <alexandru.elisei@arm.com>,
        Suzuki K Poulose <suzuki.poulose@arm.com>,
        Atish Patra <atish.patra@wdc.com>,
        David Hildenbrand <david@redhat.com>,
        Cornelia Huck <cohuck@redhat.com>,
        Claudio Imbrenda <imbrenda@linux.ibm.com>,
        Vitaly Kuznetsov <vkuznets@redhat.com>,
        Wanpeng Li <wanpengli@tencent.com>,
        Jim Mattson <jmattson@google.com>,
        Joerg Roedel <joro@8bytes.org>,
        linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu,
        linux-mips@vger.kernel.org, kvm@vger.kernel.org,
        kvm-ppc@vger.kernel.org, kvm-riscv@lists.infradead.org,
        linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org,
        David Matlack <dmatlack@google.com>,
        Oliver Upton <oupton@google.com>,
        Jing Zhang <jingzhangos@google.com>
References: <20211009021236.4122790-1-seanjc@google.com>
 <20211009021236.4122790-12-seanjc@google.com>
 <cceb33be9e2a6ac504bb95a7b2b8cf5fe0b1ff26.camel@redhat.com>
 <4e883728e3e5201a94eb46b56315afca5e95ad9c.camel@redhat.com>
 <YaUNBfJh35WXMV0M@google.com>
From:   Paolo Bonzini <pbonzini@redhat.com>
In-Reply-To: <YaUNBfJh35WXMV0M@google.com>
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On 11/29/21 18:25, Sean Christopherson wrote:
>> If I apply though only the patch series up to this patch, my fedora VM seems
>> to work fine, but my windows VM still locks up hard when I run 'LatencyTop'
>> in it, which doesn't happen without this patch.
> 
> Buy "run 'LatencyTop' in it", do you mean running something in the Windows guest?
> The only search results I can find for LatencyTop are Linux specific.

I think it's LatencyMon, https://www.resplendence.com/latencymon.

Paolo