MDS_Vulnerable_Disk_profile KVM testing on Ubuntu 18.04 via the Phoronix Test Suite. Ubuntu_18_VM_Vulnerable_Disk_Test: Processor: 2 x Intel Core (Haswell) (2 Cores / 4 Threads), Motherboard: QEMU Standard PC (i440FX + PIIX 1996) (?-20170928_130252-buildbot BIOS), Chipset: Intel 440FX 82441FX PMC, Memory: 1 x 4096 MB RAM QEMU, Disk: 16GB, Graphics: Red Hat QXL paravirtual graphic card, Network: Red Hat Virtio device OS: Ubuntu 18.04, Kernel: 4.15.0-50-generic (x86_64), Compiler: GCC 7.4.0, File-System: ext4, Screen Resolution: 1024x768, System Layer: KVM SQLite 3.22 Timed SQLite Insertions Seconds < Lower Is Better Ubuntu_18_VM_Vulnerable_Disk_Test . 28.46 |==================================== Flexible IO Tester 3.1 Type: Random Read - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 2MB - Disk Target: Default Test Directory MB/s > Higher Is Better Ubuntu_18_VM_Vulnerable_Disk_Test . 191 |====================================== Flexible IO Tester 3.1 Type: Random Read - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory MB/s > Higher Is Better Ubuntu_18_VM_Vulnerable_Disk_Test . 8 |======================================== Flexible IO Tester 3.1 Type: Random Write - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 2MB - Disk Target: Default Test Directory MB/s > Higher Is Better Ubuntu_18_VM_Vulnerable_Disk_Test . 191 |====================================== Flexible IO Tester 3.1 Type: Random Write - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory MB/s > Higher Is Better Ubuntu_18_VM_Vulnerable_Disk_Test . 8.00 |===================================== Flexible IO Tester 3.1 Type: Sequential Read - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 2MB - Disk Target: Default Test Directory MB/s > Higher Is Better Ubuntu_18_VM_Vulnerable_Disk_Test . 191 |====================================== Flexible IO Tester 3.1 Type: Sequential Read - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory MB/s > Higher Is Better Ubuntu_18_VM_Vulnerable_Disk_Test . 8.06 |===================================== Flexible IO Tester 3.1 Type: Sequential Write - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 2MB - Disk Target: Default Test Directory MB/s > Higher Is Better Ubuntu_18_VM_Vulnerable_Disk_Test . 191 |====================================== Flexible IO Tester 3.1 Type: Sequential Write - IO Engine: Linux AIO - Buffered: No - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory MB/s > Higher Is Better Ubuntu_18_VM_Vulnerable_Disk_Test . 8.02 |===================================== FS-Mark 3.3 Test: 1000 Files, 1MB Size Files/s > Higher Is Better Ubuntu_18_VM_Vulnerable_Disk_Test . 135.21 |=================================== FS-Mark 3.3 Test: 1000 Files, 1MB Size, No Sync/FSync Files/s > Higher Is Better Ubuntu_18_VM_Vulnerable_Disk_Test . 406.00 |=================================== Dbench 4.0 12 Clients MB/s > Higher Is Better Ubuntu_18_VM_Vulnerable_Disk_Test . 132.14 |=================================== Dbench 4.0 1 Clients MB/s > Higher Is Better Ubuntu_18_VM_Vulnerable_Disk_Test . 84.36 |====================================