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Re: [Qemu-devel] virtio-blk multiqueue support in qemu.
From: |
Stefan Hajnoczi |
Subject: |
Re: [Qemu-devel] virtio-blk multiqueue support in qemu. |
Date: |
Thu, 9 Jul 2015 10:13:19 +0100 |
User-agent: |
Mutt/1.5.23 (2014-03-12) |
On Wed, Jul 08, 2015 at 05:37:12PM +0300, Michael S. Tsirkin wrote:
> On Thu, Jul 02, 2015 at 09:21:21AM +0800, Fam Zheng wrote:
> > On Wed, 07/01 22:45, Naredula Janardhana Reddy wrote:
> > > HI,
> > > I am trying to improve the throughput of virtio-blk for my kernel (
> > > https://github.com/naredula-jana/Jiny-Kernel ) to make use of the
> > > multi-core using multi-queue. But I found the latest qemu does not
> > > support
> > > multiqueue for virtio-blk, The feature flag does not return multi-queue
> > > support. Do we have any patches to the qemu for enabling multi-queue for
> > > virtio-blk similar to that of virtio-net. Can someone help some pointers
> > > related to this..
> >
> > There was a series last year adding support for multi-queue but wan't
> > merged to
> > the code base:
> >
> > http://comments.gmane.org/gmane.comp.emulators.qemu/289126
> >
> > Fam
>
> Looks like it was mostly about the missing GPL license on some files.
> Or did I miss some bigger issues?
I think this led to a lot of optimization and some controversial design
questions about bypassing parts of the QEMU block layer. So I doubt
that this series can be merged without significant changes.
Will take a look at it again though because I'm also interested in
multiqueue block layer support.
Stefan
pgp87XBE9EBOP.pgp
Description: PGP signature
- [Qemu-devel] virtio-blk multiqueue support in qemu., Naredula Janardhana Reddy, 2015/07/01
- Re: [Qemu-devel] virtio-blk multiqueue support in qemu., Fam Zheng, 2015/07/01
- Re: [Qemu-devel] virtio-blk multiqueue support in qemu., Michael S. Tsirkin, 2015/07/08
- Re: [Qemu-devel] virtio-blk multiqueue support in qemu.,
Stefan Hajnoczi <=
- Message not available
- Re: [Qemu-devel] virtio-blk multiqueue support in qemu., Michael S. Tsirkin, 2015/07/09
- Re: [Qemu-devel] virtio-blk multiqueue support in qemu., Naredula Janardhana Reddy, 2015/07/10
- Re: [Qemu-devel] virtio-blk multiqueue support in qemu., Stefan Hajnoczi, 2015/07/13
- Re: [Qemu-devel] virtio-blk multiqueue support in qemu., Paolo Bonzini, 2015/07/13
- Re: [Qemu-devel] virtio-blk multiqueue support in qemu., Michael S. Tsirkin, 2015/07/13
- Re: [Qemu-devel] virtio-blk multiqueue support in qemu., Paolo Bonzini, 2015/07/13
- Re: [Qemu-devel] virtio-blk multiqueue support in qemu., Michael S. Tsirkin, 2015/07/13