On Wed, Jan 20, 2016 at 11:59 AM, Dave Chinner [off-list ref] wrote:

quoted

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

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