Re: [Qemu-devel] [PATCH 0/2] native Linux AIO support revisited

[Christoph Hellwig]

On Fri, Aug 21, 2009 at 10:40:55AM +0300, Avi Kivity wrote:
> On 08/20/2009 05:58 PM, Christoph Hellwig wrote:
> >Based on this I would recommend to include this patch, but not use it by
> >default for now.  After some testing I would suggest to enable it by
> >default for host devices and investigate a way to make it easily usable
> >for files, possibly including some kernel support to tell us which files
> >are "safe".
> >   
> 
> I like both the numbers and the patches.  But why disable by default?  
> Enabling for cache=none host devices only seems a safe choice.

I want to 

  a) get some more testing.  Especially from people who are better at
     testing than me and have a wider variety of hardware
  b) sort out the queue depth issue.  Which I'd really prefer to once
     the basic patch is in I don't have to work with a large patch
     stack.