From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dave Chinner Subject: Re: [PATCH 07/13] aio: enabled thread based async fsync Date: Thu, 21 Jan 2016 06:59:57 +1100 Message-ID: <20160120195957.GV6033@dastard> References: <80934665e0dd2360e2583522c7c7569e5a92be0e.1452549431.git.bcrl@kvack.org> <20160112011128.GC6033@dastard> <20160112022548.GD6033@dastard> <20160112033708.GE6033@dastard> <20160115202131.GH6330@kvack.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: Sender: linux-api-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Linus Torvalds Cc: Benjamin LaHaise , linux-aio-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org, linux-fsdevel , Linux Kernel Mailing List , Linux API , linux-mm , Alexander Viro , Andrew Morton List-Id: linux-api@vger.kernel.org On Tue, Jan 19, 2016 at 07:59:35PM -0800, Linus Torvalds wrote: > On Fri, Jan 15, 2016 at 12:21 PM, Benjamin LaHaise wrote: > >> > >> I'll have to think about this some more. > > > > Any further thoughts on this after a few days worth of pondering? > > Sorry about the delay, with the merge window and me being sick for a > couple of days I didn't get around to this. > > After thinking it over some more, I guess I'm ok with your approach. > The table-driven patch makes me a bit happier, and I guess not very > many people end up ever wanting to do async system calls anyway. > > 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... Cheers, Dave. -- Dave Chinner david-FqsqvQoI3Ljby3iVrkZq2A@public.gmane.org