From: "Benoît Canet" <benoit.canet@irqsave.net>
To: qemu-devel@nongnu.org
Subject: [Qemu-devel] Dataplane and vhost-blk
Date: Tue, 5 Mar 2013 15:18:46 +0100 [thread overview]
Message-ID: <20130305141845.GA3411@irqsave.net> (raw)
Hello,
I am looking for a way to help improving qemu block performance.
APIC-V is a work in progress and the two options with public code are vhost-*
and virtio-blk-dataplane.
The way of doing seems very similar (bypassing the qemu lock) and dedicating
a thread to each emulated virtio block device.
vhost-* is in kernel while dataplane is in qemu.
Performance seems similar.
Dataplane seems to be a demonstrator to be replaced by an evolution of the
qemu block layer made thread friendly and vhost-blk is not upstream yet.
This left me with the following questions :
Are dataplane and vhost-block purpose the same (speed) despite being pushed
by the same company (Red Hat) ?
What is the best path I can take to help improve qemu block performance ?
Best regards
Benoît
next reply other threads:[~2013-03-05 14:17 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-05 14:18 Benoît Canet [this message]
2013-03-05 15:59 ` [Qemu-devel] Dataplane and vhost-blk Stefan Hajnoczi
2013-03-05 20:46 ` Benoît Canet
2013-03-06 10:08 ` Stefan Hajnoczi
2013-03-06 3:23 ` Liu Yuan
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