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From: Christian Borntraeger <borntraeger@de.ibm.com>
To: Jing Zhang <jingzhangos@google.com>, KVM <kvm@vger.kernel.org>,
	KVMARM <kvmarm@lists.cs.columbia.edu>,
	LinuxMIPS <linux-mips@vger.kernel.org>,
	KVMPPC <kvm-ppc@vger.kernel.org>,
	LinuxS390 <linux-s390@vger.kernel.org>,
	Linuxkselftest <linux-kselftest@vger.kernel.org>,
	Paolo Bonzini <pbonzini@redhat.com>,
	Marc Zyngier <maz@kernel.org>, James Morse <james.morse@arm.com>,
	Julien Thierry <julien.thierry.kdev@gmail.com>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	Will Deacon <will@kernel.org>,
	Huacai Chen <chenhuacai@kernel.org>,
	Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>,
	Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
	Paul Mackerras <paulus@ozlabs.org>,
	Janosch Frank <frankja@linux.ibm.com>,
	David Hildenbrand <david@redhat.com>,
	Cornelia Huck <cohuck@redhat.com>,
	Claudio Imbrenda <imbrenda@linux.ibm.com>,
	Sean Christopherson <seanjc@google.com>,
	Vitaly Kuznetsov <vkuznets@redhat.com>,
	Jim Mattson <jmattson@google.com>,
	Peter Shier <pshier@google.com>, Oliver Upton <oupton@google.com>,
	David Rientjes <rientjes@google.com>,
	Emanuele Giuseppe Esposito <eesposit@redhat.com>,
	David Matlack <dmatlack@google.com>,
	Ricardo Koller <ricarkol@google.com>,
	Krish Sadhukhan <krish.sadhukhan@oracle.com>
Subject: Re: [PATCH v7 0/4] KVM statistics data fd-based binary interface
Date: Fri, 11 Jun 2021 08:57:35 +0200	[thread overview]
Message-ID: <4b44c5a7-21c0-73c0-bb03-21806c83b4ae@de.ibm.com> (raw)
In-Reply-To: <20210603211426.790093-1-jingzhangos@google.com>


On 03.06.21 23:14, Jing Zhang wrote:
> This patchset provides a file descriptor for every VM and VCPU to read
> KVM statistics data in binary format.
> It is meant to provide a lightweight, flexible, scalable and efficient
> lock-free solution for user space telemetry applications to pull the
> statistics data periodically for large scale systems. The pulling
> frequency could be as high as a few times per second.
> In this patchset, every statistics data are treated to have some
> attributes as below:
>    * architecture dependent or generic
>    * VM statistics data or VCPU statistics data

Are the debugfs things good enough, or do we want to also add the same
ioctl for the /dev/kvm to get the global counters as well, e.g. for
tools like kvm_stat?



  parent reply	other threads:[~2021-06-11  6:58 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-03 21:14 [PATCH v7 0/4] KVM statistics data fd-based binary interface Jing Zhang
2021-06-03 21:14 ` [PATCH v7 1/4] KVM: stats: Separate generic stats from architecture specific ones Jing Zhang
2021-06-07 19:22   ` Krish Sadhukhan
2021-06-11  6:57   ` Christian Borntraeger
2021-06-11 10:51     ` Paolo Bonzini
2021-06-11 12:00       ` Christian Borntraeger
2021-06-11 12:03         ` Paolo Bonzini
2021-06-11 12:08           ` Christian Borntraeger
2021-06-11 12:14             ` Paolo Bonzini
2021-06-03 21:14 ` [PATCH v7 2/4] KVM: stats: Add fd-based API to read binary stats data Jing Zhang
2021-06-07 19:22   ` Krish Sadhukhan
2021-06-07 22:10     ` Jing Zhang
2021-06-10 16:23   ` Paolo Bonzini
2021-06-10 17:26     ` Jing Zhang
2021-06-10 22:47     ` Jing Zhang
2021-06-11 10:32       ` Paolo Bonzini
2021-06-10 16:42   ` Paolo Bonzini
2021-06-10 17:27     ` Jing Zhang
2021-06-13 15:19   ` Fuad Tabba
2021-06-13 16:42     ` Jing Zhang
2021-06-03 21:14 ` [PATCH v7 3/4] KVM: stats: Add documentation for statistics data binary interface Jing Zhang
2021-06-07 19:22   ` Krish Sadhukhan
2021-06-07 22:09     ` Jing Zhang
2021-06-14  7:56   ` Fuad Tabba
2021-06-14 13:19     ` Jing Zhang
2021-06-03 21:14 ` [PATCH v7 4/4] KVM: selftests: Add selftest for KVM " Jing Zhang
2021-06-07 19:23   ` Krish Sadhukhan
2021-06-07 22:12     ` Jing Zhang
2021-06-10 16:46 ` [PATCH v7 0/4] KVM statistics data fd-based " Paolo Bonzini
2021-06-10 17:30   ` Jing Zhang
2021-06-11  6:57 ` Christian Borntraeger [this message]
2021-06-11 11:02   ` Paolo Bonzini

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