Patrik Dufresne KVM testing on Debian 8.7 via the Phoronix Test Suite. test-io-virtio-zfs-qcow2: Processor: Common KVM @ 2.40GHz (2 Cores), Motherboard: QEMU Standard PC (i440FX + PIIX 1996), Chipset: Intel 440FX- 82441FX PMC, Memory: 494MB, Disk: 8GB, Graphics: Cirrus Logic GD 5446, Network: Red Hat Virtio device OS: Debian 8.7, Kernel: 3.16.0-4-amd64 (x86_64), Compiler: GCC 4.9.2, File-System: ext4, System Layer: KVM IOzone 3.405 Record Size: 4Kb - File Size: 4GB - Disk Test: Read Performance MB/s > Higher Is Better test-io-virtio-zfs-qcow2 . 356.48 |============================================ IOzone 3.405 Record Size: 4Kb - File Size: 4GB - Disk Test: Write Performance MB/s > Higher Is Better test-io-virtio-zfs-qcow2 . 176.95 |============================================ Timed HMMer Search 2.3.2 Pfam Database Search Seconds < Lower Is Better test-io-virtio-zfs-qcow2 . 42.99 |============================================= LZMA Compression 256MB File Compression Seconds < Lower Is Better test-io-virtio-zfs-qcow2 . 529.77 |============================================ PHPBench 0.8.1 PHP Benchmark Suite Score > Higher Is Better test-io-virtio-zfs-qcow2 . 103020 |============================================