From: Paolo Bonzini <pbonzini@redhat.com>
To: "Soumendu Satapathy (sosatapa)" <sosatapa@cisco.com>
Cc: "kvm@vger.kernel.org" <kvm@vger.kernel.org>,
Stefan Hajnoczi <stefanha@gmail.com>
Subject: Re: Equivalent of vmware SIOC (Storage IO Control) in KVM
Date: Sun, 13 Oct 2013 15:26:31 +0200 [thread overview]
Message-ID: <525A9F87.4020107@redhat.com> (raw)
In-Reply-To: <B7C251DC5B8298499A5BF096A34CCA4E0B276C1B@xmb-aln-x14.cisco.com>
Il 12/10/2013 08:09, Soumendu Satapathy (sosatapa) ha scritto:
> Do we have an equivalent of vmware SIOC like feature in KVM?
Yes, you have two choices:
1) use cgroups to throttle I/O at the level of the host disk (i.e.
multiple virtual disks stored on the same disk share the limit). If
you're using libvirt, add the <blkiotune> element to the definition of
the virtual machine.
2) enable I/O throttling in QEMU, to apply limits at the level of the
guest disk. If you're using libvirt, add the "iotune" element within
the <disk> element in the definition of the virtual machine.
Both are documented at http://libvirt.org/formatdomain.html (search for
blkiotune and iotune).
Paolo
next prev parent reply other threads:[~2013-10-13 13:26 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-12 6:09 Equivalent of vmware SIOC (Storage IO Control) in KVM Soumendu Satapathy (sosatapa)
2013-10-13 13:26 ` Paolo Bonzini [this message]
2013-10-13 22:13 ` Andrey Korolyov
2013-10-14 0:56 ` Fam Zheng
2013-10-14 7:49 ` Paolo Bonzini
2013-10-14 2:18 ` Wangshen (Peter)
2013-10-14 2:24 ` Fam Zheng
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