> > Have you measured the impact of O_SYNC? I wouldn't be surprised if it was > > significant. > > I suspect it'll be horrific in the qemu codebase (blocking execution > of the guest OS until disk IO is complete), but it's fine in the Xen > qemu-dm situation, where IO completion happens asynchronously. > > The recent commit message on the Xen side did not suggest there was > that much of a difference between both qemu code bases. Obviously > I was wrong, and the O_SYNC bandaid should probably be kept out for > now.
Ah, ok. I didn't realise they'd diverged that much either. Paul _______________________________________________ Qemu-devel mailing list Qemu-devel@nongnu.org http://lists.nongnu.org/mailman/listinfo/qemu-devel
