Re: changes to kiobuf support in 2.4.(?)4

[Jeremy Higdon]

On Aug 2, 11:11am, Andrea Arcangeli wrote:
> 
> > At 13000 IOPS, when allocating and freeing on every I/O request,
> > the allocate/free overhead was approximately .6% on a 2 CPU system,
> > where the total overhead was about 25%.  So I would theoretically
> > gain 3% (maybe a little better since there is locking involved) if
> > I could avoid the alloc/free.
> 
> Ok good.
> 
> Andrea

So one more question for now:

Where do I get the O_DIRECT patch?

Oh, and is there a plan to get it into 2.4.X?

(ok, so two questions)

thanks

jeremy