On Mon, Jul 30, 2012 at 11:25:51AM +0930, Rusty Russell wrote:
> I consider this approach a half-way step. Quick attempts on my laptop
> and I couldn't find a case where the bio path was a loss, but in theory
> if the host wasn't doing any reordering and it was a slow device, you'd
> want the gues
Hello Sasha,
On 07/28/2012 02:35 PM, Sasha Levin wrote:
On 07/28/2012 04:21 AM, Asias He wrote:
This patch introduces bio-based IO path for virtio-blk.
Compared to request-based IO path, bio-based IO path uses driver
provided ->make_request_fn() method to bypasses the IO scheduler. It
handles
On 07/29/2012 07:11 PM, Michael S. Tsirkin wrote:
On Sat, Jul 28, 2012 at 10:21:05AM +0800, Asias He wrote:
This patch introduces bio-based IO path for virtio-blk.
Compared to request-based IO path, bio-based IO path uses driver
provided ->make_request_fn() method to bypasses the IO scheduler.
On Sun, 29 Jul 2012 14:11:15 +0300, "Michael S. Tsirkin"
wrote:
> On Sat, Jul 28, 2012 at 10:21:05AM +0800, Asias He wrote:
> > This patch introduces bio-based IO path for virtio-blk.
> >
> > Compared to request-based IO path, bio-based IO path uses driver
> > provided ->make_request_fn() method
On Sat, Jul 28, 2012 at 10:21:05AM +0800, Asias He wrote:
> This patch introduces bio-based IO path for virtio-blk.
>
> Compared to request-based IO path, bio-based IO path uses driver
> provided ->make_request_fn() method to bypasses the IO scheduler. It
> handles the bio to device directly witho
On 07/28/2012 04:21 AM, Asias He wrote:
> This patch introduces bio-based IO path for virtio-blk.
>
> Compared to request-based IO path, bio-based IO path uses driver
> provided ->make_request_fn() method to bypasses the IO scheduler. It
> handles the bio to device directly without allocating a re
This patch introduces bio-based IO path for virtio-blk.
Compared to request-based IO path, bio-based IO path uses driver
provided ->make_request_fn() method to bypasses the IO scheduler. It
handles the bio to device directly without allocating a request in block
layer. This reduces the IO path in
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