A couple tests have been uploaded to http://openbenchmarking.org/result/1206152-
STEA-VMTESTS05.
Note for the nodatacow, the subvolume did have a snapshot, since the point was
for VM's that could be snapshoted (either through virsh or btrfs). Thus the
first write to a block was cow, but subseq
Ernst Sjöstrand gmail.com> writes:
>
> Hi,
>
> you can't beat the benchmarks that Serge Hallyn did, really thorough!
>
> http://s3hh.wordpress.com/2012/05/02/first-round-of-kvm-performance-tests/
They do seem very thorough. Unfortunately, they are kvm on top of ext4 and
he was mainly checkin
>
> Seems a little unfair on btrfs to just to look at absolutes in this context.
> Prior reports said that the fs ground to a halt,
> it isn't doing that by any stretch.
I agree. What I am mostly looking for is the best setup
for using KVM snapshots:
KVM qcow2 on top of something like ext4
