fio-20180104 KVM testing on CentOS Linux 7 via the Phoronix Test Suite. QEMU HDD: Processor: 2 x Intel Xeon E5-2650 v4 @ 2.20GHz (2 Cores), Motherboard: Apache Software Foundation CloudStack KVM Hypervisor, Chipset: Intel 440FX- 82441FX PMC, Memory: 1 x 4096 MB RAM, Disk: 215GB QEMU HDD, Graphics: Cirrus Logic GD 5446, Network: Red Hat Virtio device OS: CentOS Linux 7, Kernel: 3.10.0-693.11.1.el7.x86_64 (x86_64), Compiler: GCC 4.8.5 20150623, File-System: xfs, Screen Resolution: 1024x768, System Layer: KVM Flexible IO Tester 2.2.8 Type: Random Read - IO Engine: Libaio - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: / MB/s > Higher Is Better QEMU HDD . 86.35 |============================================================= Flexible IO Tester Type: Random Read - IO Engine: Libaio - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: / IOPS > Higher Is Better QEMU HDD . 21584 |============================================================= Flexible IO Tester 2.2.8 Type: Random Write - IO Engine: Libaio - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: / MB/s > Higher Is Better QEMU HDD . 48.49 |============================================================= Flexible IO Tester Type: Random Write - IO Engine: Libaio - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: / IOPS > Higher Is Better QEMU HDD . 12120 |============================================================= Flexible IO Tester 2.2.8 Type: Sequential Read - IO Engine: Libaio - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: / MB/s > Higher Is Better QEMU HDD . 54.84 |============================================================= Flexible IO Tester Type: Sequential Read - IO Engine: Libaio - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: / IOPS > Higher Is Better QEMU HDD . 13706 |============================================================= Flexible IO Tester 2.2.8 Type: Sequential Write - IO Engine: Libaio - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: / MB/s > Higher Is Better QEMU HDD . 238.03 |============================================================ Flexible IO Tester Type: Sequential Write - IO Engine: Libaio - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: / IOPS > Higher Is Better QEMU HDD . 59504 |=============================================================