Hi Alexander, On 09.04.2011, at 14:14, Sasha Levin wrote: >> Attempt to use mmap first for working with a disk image, if the attempt is >> failed (for example, large image on a 32bit system) fallback to using >> read/write.
On Sat, Apr 9, 2011 at 3:20 PM, Alexander Graf <[email protected]> wrote: > That reminds me of an idea I had quite a while back. > > What if we mmap'ed a raw disk image directly into the guest's address space? > This could for example be done through a virtio feature addition, keeping the > disk accessible through normal virtio plus the mmap'ed part. At least in > writeback mode, this should perform pretty well, as we'd save all the > userspace exits. It'd basically be almost like vhost-blk :). > > Have you thought about trying out to implement such a feature? No, we haven't but that sounds like something worth trying out! Pekka -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
