disk01 KVM testing on CentOS 7.4.1708 via the Phoronix Test Suite. Intel Xeon E5-2682 v4 - cirrusdrmfb - Alibaba Cloud ECS: Processor: Intel Xeon E5-2682 v4 @ 2.50GHz (4 Cores / 8 Threads), Motherboard: Alibaba Cloud ECS, Memory: 1 x 16384 MB RAM, Disk: 40GB, Graphics: cirrusdrmfb OS: CentOS 7.4.1708, Kernel: 3.10.0-693.2.2.el7.x86_64 (x86_64), Compiler: GCC 4.8.5 20150623, File-System: ext4, Screen Resolution: 1024x768, System Layer: KVM IOzone 3.465 Record Size: 1MB - File Size: 8GB - Disk Test: Read Performance MB/s > Higher Is Better Intel Xeon E5-2682 v4 - cirrusdrmfb - Alibaba Cloud ECS . 5181.24 |============ IOzone 3.465 Record Size: 4Kb - File Size: 8GB - Disk Test: Read Performance MB/s > Higher Is Better Intel Xeon E5-2682 v4 - cirrusdrmfb - Alibaba Cloud ECS . 4939.99 |============ IOzone 3.465 Record Size: 1MB - File Size: 8GB - Disk Test: Write Performance MB/s > Higher Is Better Intel Xeon E5-2682 v4 - cirrusdrmfb - Alibaba Cloud ECS . 104.70 |============= IOzone 3.465 Record Size: 4Kb - File Size: 8GB - Disk Test: Write Performance MB/s > Higher Is Better Intel Xeon E5-2682 v4 - cirrusdrmfb - Alibaba Cloud ECS . 104.52 |============= IOzone 3.465 Record Size: 64Kb - File Size: 8GB - Disk Test: Read Performance MB/s > Higher Is Better Intel Xeon E5-2682 v4 - cirrusdrmfb - Alibaba Cloud ECS . 5651.60 |============ IOzone 3.465 Record Size: 64Kb - File Size: 8GB - Disk Test: Write Performance MB/s > Higher Is Better Intel Xeon E5-2682 v4 - cirrusdrmfb - Alibaba Cloud ECS . 104.67 |=============