iobench1 KVM testing on Ubuntu 16.04 via the Phoronix Test Suite. iobench1: Processor: 8 x Intel Xeon E3-12xx v2 (Ivy Bridge) @ 2.70GHz (8 Cores), Motherboard: OpenStack Foundation Nova v13.1.2, Chipset: Intel 440FX- 82441FX PMC, Memory: 32768MB, Disk: 194GB, Graphics: Cirrus Logic GD 5446, Network: Red Hat Virtio device OS: Ubuntu 16.04, Kernel: 4.4.0-53-generic (x86_64), Compiler: GCC 5.4.0 20160609, File-System: ext4, System Layer: KVM Threaded I/O Tester 0.3.3 Test: Read - Size Per Thread: 32MB - Thread Count: 4 MB/s > Higher Is Better iobench1 . 5914.55 |=========================================================== Threaded I/O Tester 0.3.3 Test: Read - Size Per Thread: 64MB - Thread Count: 4 MB/s > Higher Is Better iobench1 . 7081.27 |=========================================================== Threaded I/O Tester 0.3.3 Test: Read - Size Per Thread: 128MB - Thread Count: 4 MB/s > Higher Is Better iobench1 . 9383.51 |=========================================================== Threaded I/O Tester 0.3.3 Test: Read - Size Per Thread: 256MB - Thread Count: 4 MB/s > Higher Is Better iobench1 . 10040.98 |========================================================== Threaded I/O Tester 0.3.3 Test: Write - Size Per Thread: 32MB - Thread Count: 4 MB/s > Higher Is Better iobench1 . 1.69 |============================================================== Threaded I/O Tester 0.3.3 Test: Write - Size Per Thread: 64MB - Thread Count: 4 MB/s > Higher Is Better iobench1 . 1.62 |============================================================== Threaded I/O Tester 0.3.3 Test: Write - Size Per Thread: 128MB - Thread Count: 4 MB/s > Higher Is Better iobench1 . 1.61 |============================================================== Threaded I/O Tester 0.3.3 Test: Write - Size Per Thread: 256MB - Thread Count: 4 MB/s > Higher Is Better iobench1 . 1.64 |============================================================== Threaded I/O Tester 0.3.3 Test: Random Read - Size Per Thread: 32MB - Thread Count: 4 MB/s > Higher Is Better iobench1 . 3238.70 |=========================================================== Threaded I/O Tester 0.3.3 Test: Random Read - Size Per Thread: 64MB - Thread Count: 4 MB/s > Higher Is Better iobench1 . 2864.56 |=========================================================== Threaded I/O Tester 0.3.3 Test: Random Read - Size Per Thread: 128MB - Thread Count: 4 MB/s > Higher Is Better iobench1 . 2778.53 |=========================================================== Threaded I/O Tester 0.3.3 Test: Random Read - Size Per Thread: 256MB - Thread Count: 4 MB/s > Higher Is Better iobench1 . 2446.00 |=========================================================== Threaded I/O Tester 0.3.3 Test: Random Write - Size Per Thread: 32MB - Thread Count: 4 MB/s > Higher Is Better iobench1 . 1.51 |============================================================== Threaded I/O Tester 0.3.3 Test: Random Write - Size Per Thread: 64MB - Thread Count: 4 MB/s > Higher Is Better iobench1 . 1.59 |============================================================== Threaded I/O Tester 0.3.3 Test: Random Write - Size Per Thread: 128MB - Thread Count: 4 MB/s > Higher Is Better iobench1 . 1.52 |============================================================== Threaded I/O Tester 0.3.3 Test: Random Write - Size Per Thread: 256MB - Thread Count: 4 MB/s > Higher Is Better iobench1 . 1.51 |==============================================================