From: Christoph Hellwig <hch@infradead.org>
To: Liu Yuan <namei.unix@gmail.com>
Cc: Badari Pulavarty <pbadari@us.ibm.com>,
Stefan Hajnoczi <stefanha@gmail.com>,
"Michael S. Tsirkin" <mst@redhat.com>,
Rusty Russell <rusty@rustcorp.com.au>,
Avi Kivity <avi@redhat.com>,
kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
Khoa Huynh <khoa@us.ibm.com>
Subject: Re: [RFC PATCH]vhost-blk: In-kernel accelerator for virtio block device
Date: Mon, 1 Aug 2011 04:12:01 -0400 [thread overview]
Message-ID: <20110801081201.GA26472@infradead.org> (raw)
In-Reply-To: <4E363DB9.70801@gmail.com>
On Mon, Aug 01, 2011 at 01:46:33PM +0800, Liu Yuan wrote:
> >- I focused on using vfs interfaces in the kernel, so that I can
> >use it for file-backed devices.
> >Our use-case scenario is mostly file-backed images.
> >
> vhost-blk's that uses Linux AIO also support file-backed images.
> Actually, I have run Guests both on raw partition and raw file
> images.
Note tjat it will only perform very well for preallocated images (just
like aio=native in qemu) - if you use sparse images it will have to
call into the allocator, which blocks for metadata I/O even in aio mode.
next prev parent reply other threads:[~2011-08-01 8:12 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-28 14:29 [RFC PATCH]vhost-blk: In-kernel accelerator for virtio block device Liu Yuan
2011-07-28 14:29 ` [RFC PATCH] vhost-blk: An in-kernel accelerator for virtio-blk Liu Yuan
2011-07-28 14:47 ` Christoph Hellwig
2011-07-29 11:19 ` Liu Yuan
2011-07-28 15:18 ` Stefan Hajnoczi
2011-07-28 15:22 ` Michael S. Tsirkin
2011-07-29 15:09 ` Liu Yuan
2011-08-01 6:25 ` Liu Yuan
2011-08-01 8:12 ` Michael S. Tsirkin
2011-08-01 8:55 ` Liu Yuan
2011-08-01 10:26 ` Michael S. Tsirkin
2011-08-11 19:59 ` Dongsu Park
2011-08-12 8:56 ` Alan Cox
2011-07-28 14:29 ` [RFC PATCH] vhost: Enable vhost-blk support Liu Yuan
2011-07-28 15:44 ` [RFC PATCH]vhost-blk: In-kernel accelerator for virtio block device Stefan Hajnoczi
2011-07-29 4:48 ` Stefan Hajnoczi
2011-07-29 7:59 ` Liu Yuan
2011-07-29 10:55 ` Christoph Hellwig
2011-07-29 7:22 ` Liu Yuan
2011-07-29 9:06 ` Stefan Hajnoczi
2011-07-29 12:01 ` Liu Yuan
2011-07-29 12:29 ` Stefan Hajnoczi
2011-07-29 12:50 ` Stefan Hajnoczi
2011-07-29 14:45 ` Liu Yuan
2011-07-29 14:50 ` Liu Yuan
2011-07-29 15:25 ` Sasha Levin
2011-08-01 8:17 ` Avi Kivity
2011-08-01 9:18 ` Liu Yuan
2011-08-01 9:37 ` Avi Kivity
2011-07-29 18:12 ` Badari Pulavarty
2011-08-01 5:46 ` Liu Yuan
2011-08-01 8:12 ` Christoph Hellwig [this message]
2011-08-04 21:58 ` Badari Pulavarty
2011-08-05 7:56 ` Liu Yuan
2011-08-05 11:04 ` Liu Yuan
2011-08-05 18:02 ` Badari Pulavarty
2011-08-08 1:35 ` Liu Yuan
2011-08-08 5:04 ` Badari Pulavarty
2011-08-08 7:31 ` Liu Yuan
2011-08-08 17:16 ` Badari Pulavarty
2011-08-10 2:19 ` Liu Yuan
2011-08-10 20:37 ` Badari Pulavarty
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