n1 KVM testing on CentOS 7.5.1804 via the Phoronix Test Suite. n2: Processor: Intel Xeon @ 2.00GHz (2 Cores / 4 Threads), Motherboard: Google Compute Engine, Chipset: Intel 440FX- 82441FX PMC, Memory: 1 x 8192 MB RAM, Disk: 54GB PersistentDisk + 2 x 537GB PersistentDisk, Network: Red Hat Virtio device OS: CentOS 7.5.1804, Kernel: 3.10.0-862.14.4.el7.x86_64 (x86_64), Compiler: GCC 4.8.5 20150623, File-System: xfs, System Layer: KVM Intel Xeon - - Google Compute Engine: Processor: Intel Xeon @ 2.00GHz (2 Cores / 4 Threads), Motherboard: Google Compute Engine, Chipset: Intel 440FX- 82441FX PMC, Memory: 1 x 8192 MB RAM, Disk: 54GB PersistentDisk + 2 x 537GB PersistentDisk, Network: Red Hat Virtio device OS: CentOS 7.5.1804, Kernel: 3.10.0-862.14.4.el7.x86_64 (x86_64), Compiler: GCC 4.8.5 20150623, File-System: xfs, System Layer: KVM Apache Benchmark 2.4.29 Static Web Page Serving Requests Per Second > Higher Is Better n2 . 7942 |==================================================================== Flexible IO Tester 3.1 Type: Random Read - IO Engine: POSIX AIO - Buffered: Yes - Direct: No - Block Size: 4KB - Disk Target: / MB/s > Higher Is Better n2 . 5.87 |==================================================================== Flexible IO Tester 3.1 Type: Random Read - IO Engine: POSIX AIO - Buffered: Yes - Direct: Yes - Block Size: 4KB - Disk Target: / MB/s > Higher Is Better n2 . 5.80 |==================================================================== Flexible IO Tester 3.1 Type: Random Read - IO Engine: POSIX AIO - Buffered: Yes - Direct: No - Block Size: 4KB - Disk Target: Default Test Directory MB/s > Higher Is Better n2 . 5.88 |==================================================================== Flexible IO Tester 3.1 Type: Random Read - IO Engine: POSIX AIO - Buffered: Yes - Direct: Yes - Block Size: 4KB - Disk Target: Default Test Directory MB/s > Higher Is Better n2 . 5.86 |====================================================================