On 10/03/2011 06:33 PM, Eric Sandeen wrote: > On 10/3/11 5:13 PM, Richard W.M. Jones wrote: >> On Mon, Oct 03, 2011 at 04:11:28PM -0500, Eric Sandeen wrote: >>> testing something more real-world (20T ... 500T?) might still be interesting. >> >> Here's my test script: >> >> qemu-img create -f qcow2 test1.img 500T&& \ >> guestfish -a test1.img \ >> memsize 4096 : run : \ >> part-disk /dev/vda gpt : mkfs ext4 /dev/vda1 ... >> >> At 100T it doesn't run out of memory, but the man behind the curtain >> starts to show. The underlying qcow2 file grows to several gigs and I >> had to kill it. I need to play with the lazy init features of ext4. >> >> Rich. >> > > Bleah. Care to use xfs? ;) WHy not btrfs? I am testing a 24TB physical server and ext4 creation took forever while btrfs was almost instant. I understand it's still experimental (I hear storing virtual disk images on btrfs still has unresolved performance problems) but vm disk storage should be fine. FWIW I have been using btrfs as my /home at home for some time now; so far so good. -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel
