fio-15kmtu-2 VMware testing on CentOS Linux 7 via the Phoronix Test Suite. Virtual disk: Processor: 16 x Intel Xeon E5-2680 v3 @ 2.50GHz (16 Cores), Motherboard: Intel 440BX, Chipset: Intel 440BX/ZX/DX, Memory: 12 x 16384 MB DRAM, Disk: 64GB Virtual disk + 8 x 1049GB Virtual disk, Graphics: VMware SVGA II, Network: VMware VMXNET3 OS: CentOS Linux 7, Kernel: 4.7.0-0.rc4.git0.1.el7.centos.x86_64 (x86_64) 20160621, Desktop: GNOME Shell 3.14.4, Display Driver: vmware 13.0.2, Compiler: GCC 4.8.5 20150623, File-System: ext4, Screen Resolution: 1672x1254, System Layer: VMware fio-900mtu-2: Processor: 16 x Intel Xeon E5-2680 v3 @ 2.50GHz (16 Cores), Motherboard: Intel 440BX, Chipset: Intel 440BX/ZX/DX, Memory: 12 x 16384 MB DRAM, Disk: 64GB Virtual disk + 8 x 1049GB Virtual disk, Graphics: VMware SVGA II, Network: VMware VMXNET3 OS: CentOS Linux 7, Kernel: 4.7.0-0.rc4.git0.1.el7.centos.x86_64 (x86_64) 20160621, Desktop: GNOME Shell 3.14.4, Display Driver: vmware 13.0.2, Compiler: GCC 4.8.5 20150623, File-System: ext4, Screen Resolution: 1672x1254, System Layer: VMware Flexible IO Tester 2.1.13 Type: Random Read - IO Engine: POSIX AIO - Buffered: No - Direct: Yes - Block Size: 128MB - Disk Target: /btrfs - Result: MB/s MB/s > Higher Is Better Virtual disk . 460.03 |======================================================== fio-900mtu-2 . 389.66 |=============================================== Flexible IO Tester 2.1.13 Type: Random Write - IO Engine: POSIX AIO - Buffered: No - Direct: Yes - Block Size: 128MB - Disk Target: /btrfs - Result: MB/s MB/s > Higher Is Better Virtual disk . 346.24 |======================================================== fio-900mtu-2 . 298.55 |================================================ Flexible IO Tester 2.1.13 Type: Sequential Read - IO Engine: POSIX AIO - Buffered: No - Direct: Yes - Block Size: 128MB - Disk Target: /btrfs - Result: MB/s MB/s > Higher Is Better Virtual disk . 323.67 |============================================= fio-900mtu-2 . 405.57 |======================================================== Flexible IO Tester 2.1.13 Type: Sequential Write - IO Engine: POSIX AIO - Buffered: No - Direct: Yes - Block Size: 128MB - Disk Target: /btrfs - Result: MB/s MB/s > Higher Is Better Virtual disk . 308.60 |======================================================= fio-900mtu-2 . 316.39 |========================================================