On Mon, Oct 03, 2005 at 03:58:40PM +0200, Jens Axboe wrote: > On Mon, Oct 03 2005, John Coiner wrote: > > > > Non-blocking disk IO now works for any type of disk image, not just > > "raw" format. There is no longer any format-specific code in the patch: > > > > http://people.brandeis.edu/~jcoiner/qemu_idedma/qemu_dma_patch.html > > > > You might want this patch if: > > * you run a multitasking guest OS, > > * you access a disk sometimes, and > > * you wouldn't mind if QEMU ran a little faster. > > > > Why I have not got feedback in droves I do not understand ;) > > Why not use aio for this instead, seems like a better fit than spawning > a thread per block device? That would still require a thread for > handling completions, but you could easily just use a single completion > thread for all devices for this as it would not need to do any real > work.
Why is there a posix async IO 'standard', but a different linux AIO standard? Having something that wraps both Linux-native AIO and posix async I/O might make supporting it a little easier to swallow on cross-platform applications. _______________________________________________ Qemu-devel mailing list Qemu-devel@nongnu.org http://lists.nongnu.org/mailman/listinfo/qemu-devel
