Re: [PATCH 07/13] aio: enabled thread based async fsync

[Linus Torvalds]

On Wed, Jan 20, 2016 at 11:59 AM, Dave Chinner <david@xxxxxxxxxxxxx> wrote:
>>
>> Are there other users outside of Solace? It would be good to get comments..
>
> I know of quite a few storage/db products that use AIO. The most
> recent high profile project that have been reporting issues with AIO
> on XFS is http://www.scylladb.com/. That project is architected
> around non-blocking AIO for scalability reasons...

I was more wondering about the new interfaces, making sure that the
feature set actually matches what people want to do..

That said, I also agree that it would be interesting to hear what the
performance impact is for existing performance-sensitive users. Could
we make that "aio_may_use_threads()" case be unconditional, making
things simpler?

          Linus