On Tue, Jul 25 2006, Fabrice Bellard wrote: > Jens Axboe wrote: > >On Tue, Jul 25 2006, Sven Köhler wrote: > > > >>>>>So the current thread-based async dma patch is really just the > >>>>>wrong long term solution. A more long term solution is likely in > >>>>>the works. It requires quite a bit of code modification though. > >>>> > >>>>I see. So in other words: > >>>> > >>>>don't ask for simple async I/O now. The more complex and flexible > >>>>sollution will follow soon. > >>> > >>>Yes, hopefully really soon. > >> > >>So i will wait patiently :-) > > > > > >Is anyone actively working on this, or is it just speculation? I'd > >greatly prefer (and might do, if no one is working on it and Fabrice > >would take it) do a libaio version, since that'll for sure perform > >the best on Linux. But a posixaio version might be saner, as that > >should work on other operating systems as well. > > > >Fabrice, can you let people know what you would prefer? > > I am working on an implementation and the first version will use the > posix aio and possibly the Windows ReadFile/WriteFile overlapped I/Os. > Anthony Liguori got a pre version of the code, but it is not > commitable yet.
Sounds good, so at least it's on its way :-) It's on of those big items left on the TODO, so will be good to see go in. Then one should implement an ahci host controller for queued command support next... -- Jens Axboe _______________________________________________ Qemu-devel mailing list Qemu-devel@nongnu.org http://lists.nongnu.org/mailman/listinfo/qemu-devel
